September 1991
Chesapeake Bay Program
  Data Management Plan
              •^~-
              Chesapeake
                     Bay
                 Program
                  Printed on Recycled Paper

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Chesapeake Bay Program
  Data Management Plan
            September 1991
              Produced by
          Computer Sciences Corporation
      under contract to the U.S. Environmental Protection
              Agency

           Contract NO. 68-WO-0043  @ Printed on Recycled Paper

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          CHESAPEAKE BAY PROGRAM DATA MANAGEMENT PLAN






                       TABLE OF CONTENTS






I.   Introduction	1-1




II.  Data Quality Assurance Procedures	II-l




III. Data Submission Procedures	III-l




IV.  The Data Approval Process	IV-1




V.   Data Base Summaries	V-l






APPENDIX'A  Quality Assurance Policy	A.I




APPENDIX B  Quality Assurance Definitions 	  B.I




APPENDIX C  Project Information Form	C.I




APPENDIX D  Data Set Documentation Form	D.I




APPENDIX E  Data Documentation Form	E.I




APPENDIX. F  Data Dictionary	F.I




APPENDIX G  Data Dictionary Tables	G.I




APPENDIX H  Data Processing Request Forms	H.I

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                         LIST OF FIGURES






Figure II-A  Sample QA Data Submission Format	II. 8




Figure IV-1  Simulation of Data Flow to the CBP Data Base .  IV. 3

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                     CHAPTER I:  INTRODUCTION

Data management has long been recognized as an integral part of the
Chesapeake Bay Program (CBP).    The efforts of all CBP  partner
agencies to manage the resources of the Chesapeake Bay require an
extensive data base  of known quality.   The data must  be easily
accessed for analytical and reporting purposes.   A key to achieving
these goals  is to acquire  or  create  common data  attributes  in
similar, or translatable,  formats.   This  Plan  describes the data
forms and procedures  for the  submission, storage, and retrieval of
Chesapeake Bay data at the CBP.

In previous years,  The CBP Office produced four separate documents
to detail the various data collection programs  and guidelines for
submitting, data to the CBP.  These were the Water Quality Data
Management Plan  (DMP), the  Living Resources Monitoring DMP,  the
Sediment Monitoring DMP,  and the Data  Submission Guidelines.   As
a result of continuing efforts  to integrate diverse types of d?ta
into usable information, this document  combines the  four documents
into one.  In addition, Toxics  and Historical  Data Base descrip-
tions have been added.

This data  management plan describes the Chesapeake Bay Program
procedures and standards  to acquire, store, and access Chesapeake
Bay data.  This1 plan  contains:

     o    Data submission procedures;

     o    Quality assurance practices for the data;

     o    Data verification and approval procedures;

     o    Data base summaries;

     o    Appendices, that include:

          - Data submission forms  (w/completed examples);

          - Data quality assurance policies and definitions;

          - Data Dictionary and Code Tables.
                               1-1

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         CHAPTER II: DATA QUALITY ASSURANCE PROCEDURES

The overall quality assurance (QA)  goal of Chesapeake Bay Program
Computer Center (CBPCC) is  to  ensure that data  submitted to the
CBPCC are valid, complete, and of known quality.  Listed below are
examples of methods  used by the  CBP to  help meet  those goals.
Refer to Appendix A and B for  a quality  assurance policy  on
incorporating historical and signed-of f data into  the CBPCC CHESSEE
database.

A.   QA PLANS

Agencies and institutions participating in EPA funded components
of the CBP Monitoring Program are  required to submit work/quality
assurance project plans and  to complete a Project Information Form
(Appendix C) that  documents the sampling  methods  and laboratory
procedures used to  obtain data that will be stored on the computer.
In addition,  any variance within each regular data submission must
be documented using the Data Set  Documentation Form  (Appendix D)
or the Data Documentation Form (Appendix E) .  This  ensures that
future users of the data base will  have  complete information on the
quality of each data  value and exactly what that value represents.
Users can decide which data  meet the criteria for their particular
application.  Other funding  agencies are encouraged to pursue more
formal documentation, and involvement of quality assurance  in their
ongoing, and planned data collection programs.

Agencies and institutions collecting data not funded by EPA use the
Data Documentation Form in Appendix E.  The Appendix E form is more
general  and does  not  require  the specific information  (such as
cruise  logs,   checklist  file  names,  SAS  code,   etc.)   found  in
established monitoring program procedures.

B.   DATA ENTRY

All data submitted to  the CBPCC database  via  standard data entry
methods  must be key-verified by the  data  collection agency using
the double-entry or  comparable method.   This  entails keying all
data twice to  compare  entries  and correct any differences.  This
process  helps to locate many of the  errors that may occur during
data entry.

C.   SIGNIFICANT DIGITS

Data may be  stored in the  CBP  data  base with any  level of sig-
nificance, as  long as  accompanying documentation can qualify the
validity of the data  for a potential user.  Levels of  significance


                               II-l

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are derived  for specific parameters  by the CBP  Monitoring Sub-
committee for particular data  applications.   A general guideline
used by some  laboratories is to report results to one decimal place
beyond the method detection limit  (MDL) :  if  the MDL is 0.1, they
report results to 0.01 or two decimal places.

D.   DATA SUBMISSION GUIDELINES

Various methods are used to submit data to  the CBPCC.   Given the
variety of organizations that collect Chesapeake Bay data and the
diversity of telecommunications capabilities, CBP has established
guidelines for  data submission.   These procedures include every-
thing  from using  appropriate  data  dictionary terms  and  codes
(Appendix F and Appendix G) to  electronic transmission of the data
set.  Detailed data submission  procedures are presented in Chapter
III.

E.   DATA SET VERIFICATION

The CBPCC staff has developed procedures and  programs that provide
consistency  within  the data  base and  additional checks  on the
quality of data.  These programs:

     o    Perform checks to determine if data submissions comply
          with the minimum requirements  of the scope of work, e.g.,
          stations sampled,  and parameters measured;

     o    Perform checks to determine if numeric variables exceed
          established warning and critical limits;

     o    Perform checks to verify valid character variables; and

     o    Calculate parameters from  raw  data;   e.g.,  calculate
          density from subsample counts, subsample volume and total
          sample volume; or chlorophyll from optical densities at
          specified wavelengths.

The process  for incorporation  of  a  submitted data  set  into the
CBPCC database  is depicted and discussed in Chapter IV.

F.   QUALITY ASSURANCE DATA REQUIREMENTS

To  assess1 the  quality of a  data set,  there must  be a  way to
evaluate  the   collection,,  preservation,  and  analytical  meth-
odologies for a specific application.  The precision (the closeness
of  repeated1  measurements  of  the same  sample to each other, with
deviations caused by random error) and  accuracy (the closeness of


                               IT-2

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observed values to the true value,  with deviations or bias caused
by systematic  error)  of data values  must  be quantitative.   For
further information, refer to "Calculation of Precision, Bias, and
Method Detection  Limit for  Chemical  and Physical  Measurements,
Chapter 5," U.S. EPA,  March 30,  1984.

Detailed documentation of methods  and protocols and quantitative
proof of measurement control are essential.   The CBPCC provides a
mechanism to store this  information and to retrieve  it with its
associated data.

There are three main  Quality Assurance  (QA) parameters that are
estimated for Chesapeake Bay Program data:

1.   Intra-laboratory precision

Information about intra-laboratory  precision of measurements can
be obtained from replicated samples or aliquots  of the  same sample,
usually from field or lab replicates  (refer to Section G,  Cate-
gories of QA Data, below), and is usually expressed as  the standard
deviation of the observations.   In the data base, such duplicate
or replicate measurements need  to  be  identified explicitly using
a  replicate number and  replicate  type  code  in  addition  to the
normally reported  information that uniquely identify a specific
value, such as  cruise, date,  time,  station,  depth,  and parameter
name.

2.   Inter-laboratory precision

Inter-laboratory precision is usually determined by either field
split samples  or co-located  samples (refer  to  Section G, below).
Samples collected at  the  same time and place  are sent to two or
more  laboratories  for analysis, and  their  results  are compared.
Split sample data are usually submitted separately from other data.

3>.   Accuracy

Accuracy  is  typically  estimated   two  ways:   by measuring  the
deviation of the mean of a number of observations from a known, or
"true," value,  and by calculating  percent  recovery.    Systematic
departure from a true value can  have a number of causes, including
unrepresentative  sampling,   systematic variations  in  correlated
phenomena,   and  biased calibration  and standards.   Known sources
of potential bias  should be specifically referenced in the data set
document ation.

There are,  however,  alternative means of  demonstrating accuracy


                               II-3

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that can improve  confidence  in a data set.   For example,  inter-
laboratory accuracy is not measured directly by split sample tes-
ting, but  it can be  estimated indirectly by examining  other QA
data,  such  as  agreement  of  replicates,   agreement  of  results
obtained by  different methods,  results  from  standard  reference
materials, and internal consistency of results.

G.   CATEGORIES OF QUALITY ASSURANCE (QA) DATA

There are seven categories of primary quantitative QA data that are
applicable to Chesapeake Bay  Program data:  1) field duplicates, 2)
field splits, 3)  co-located samples, 4) laboratory duplicates, 5)
laboratory spikes, 6) method comparisons, and 7) special studies.
Each  one  quantifies different  sources  of  variability  in  the
measurement system.

1.   Field Duplicates (Replicates)

Duplicate samples, collected  at the same station and depth in close
succession by the  same  field crew,  and processed and analyzed by
the same laboratory, provide an estimate of intra-laboratory pre-
cision of the measurement system from sample acquisition (including
collection.) through analysis.  These results are usually included
with the routine  monitoring  data,  and  should be distinguished by
the value  'FLD'  (field)  for  the  replicate type parameter.   These
resemble co-located samples  (see section 3, below),  except that the
latter  are  collected by  different field crews  and often  are
analyzed by different laboratories.

2.   Field Splits

Aliquots from a single sample or grab,  split soon after collection
and processed and analyzed by separate  laboratories,  are called
field splits.  The results can be used to estimate the inter-lab-
oratory precision of the measurement system from sample acquisition
(after collection) through analysis.  These are being used in the
Chesapeake Bay Coordinated Split Sample Program.

3.   Co-Located Samples

Co-located samples  are  collected  by different field crews at the
same  station,   depth,  and  time,  and  usually  are analyzed by
different laboratories.  Their results can be used to determine the
inter-laboratory  precision of the measurement system from sample
collection through analysis.

4.   Laboratory Duplicates (Replicates)


                               II-4

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Typically,, ten percent of samples subjected to laboratory analysis
are required to be  analyzed  in duplicate.  Duplicate  counts  and
duplicate measurements may be  generated both by  the same  or  by
different  analysts.    Most  duplicate  observations  in  the  CBP
monitoring data base  are  lab  duplicates,  with  replicate type  =
'LAB,* and represent an estimate of the intra-laboratory precision
of sample preparation  and  analysis.   In practice,  when duplicates
differ beyond some predefined amount,  an error is  indicated and a
third  analysis  is  done  and the value  in error is  discarded.
Duplicates maintained  in  the  data base need  to be  identified
explicitly using replicate number  and replicate  type  codes,  and
documentation for the data set should clearly  indicate  what  the
replication is measuring.

5.   Laboratory Spikes

These data directly measure the accuracy of particular laboratory
techniques.  Laboratory samples are spiked  with a known quantity
of material  to  determine  the percent  recovery  or the  extent  to
which an analytical measurement deviates from the  known quantity.
Data  of this  type could  be  generated  in water chemistry  and
biochemical  analyses,  studies  of primary productivity,  or  other
kinds of rate and process studies that  use  radioactive labels to
follow the fate, and accumulation of specific  products.   Analysis
of lab spikes requires:

     a.   measured sample background concentration, reported  as the
          concentration for that parameter with  REP_TYPE = 'SPK.'

     b.   amount of spike or standard added (reported as parameter-
          name^; see below) .  The spike value  should be 0.5 to 2.0
          times the sample background concentration.

     c.   recovered (analyzed)  value for  the mixture of sample and
          spike (reported  as  parametername_SK; see below).

     d.   percent  recovery,  calculated  using the formula  given
          below.

6.   Method Comparisons

Data values for a parameter may vary because of differences in the
methods of sample collection, preservation,  handling, or analysis.
For  example, some  laboratories in  the  CBP  monitoring program
switched from measuring nitrogen via  Kjeldahl whole  and filtered
nitrogen and nitrate/nitrite to using particulate organic  and total


                               11-5

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dissolved  nitrogen in  late  1987.   They  reported  both  sets  of
parameters for the same samples for a few months, making a method
comparison possible.  Quantitative data of  this kind are necessary
to  rate  the accuracy  and  comparability  of data  obtained  by
different methods.  The replicate  type  (REP_TYPE) = 'METH' must be
used when these data  are  submitted,  and  the documentation should
specify how to compare the results of the old and new methods.

7.   Special Studies

Data from short-term  studies conducted to test  hypotheses  or to
estimate variability or point values  are valuable contributions to
the CBP data base and provide another standard against which users
and contributors can evaluate the  quality of data.  They should be
clearly identified and explained in the accompanying documentation.

Quality  assurance data files  are associated with  the  data via
reference  to the  source,  study,   date,  time, station  location,
sample depth, replicate number,  replicate type, and any other par-
ameters required to identify  a  sample uniquely.   It is very impor-
tant that  QA data be flagged  so  that  it  can be  used  in special
analyses for which it was collected.

ft.   QA VARIABLE NAMES AMD NAMING CONVENTIONS

QA data  that are included in observational data  sets need to be
identified' in? the Data Set Documentation Form (Appendix D) or the
Data: Documentation Form  (Appendix  E)  under  the  'Category Code'
heading.  The  CBPCC  assigns the  codes from information provided
by the  data originator,  and the  CBP format  conversion programs
reference the codes to separate QA data from the main data base.

Some types of QA  data are incompatible in format, structure, and
purpose  with the  observational  data.   A cumulative  record of
replicates  from  a cruise  which includes  standard  deviations or
spike data should not be  included in the main observational data
base-.   Such' data  should  be  submitted as  separate  data sets and
supported, with separate documentation.   For example,  the results
of the Chesapeake Bay Coordinated Split  Sample Program should be
submitted separately from  the monitoring data,  using the guidelines
and forms provided for that program.

The relevant variables  in the  Data Dictionary (Appendix F), most
of which are unique to QA data sets, should be used as follows:

1.   Replicate type  (REP_TYPE)
                               II-6

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Replicate type, must be used to distinguish the different types of
QA data.  Refer to Appendix F for the list of possible values.

2.   Replicate Number (REP_NUM)

Replicate number should only be used  if that replicate type in the
data set does not include the _S and _N variables (defined below) .
If replicate number  (REP_NUM) is used, it  must  be  a single digit
(1, 2, 3, etc.)  when REP_TYPE -  'FLD'  or  'LAB.'   It  must be two
digits  (11,  12,  21,  22, etc.) when  REP_TYPE - 'FL,'   where the
first digit indicates the field replicate number, the second digit
the lab replicate number.

3.   Parametername_S

Parametername_S is the standard deviation  of lab  replicates.  If
it is used, the concentration of  the parameter in that row of the
data set must be the mean of the  lab replicates used to calculate
the standard  deviation, and the  following variable must  also be
included in the  same row.   The mean concentration is important,
because precision sometimes varies with concentration.

4.   Parametername_N

Parametername_N is the number of  replicates used to calculate the
standard deviation.

5.   Paramet ername_P

Parametername_P is the percent recovery  (REP_TYPE  = 'SPK').   The
same row in the data set should contain the background concentra-
tion, and the following two variables, for that parameter.  Percent
recovery  should be  calculated  from these  variables  using the
formula defined by EPA in 1984; other formulae that have been used
in the past give different results:

Parameteraame_P   =   ((Parametername_SK   -     Parametername)   /
                    ParameternamejC)  * 100

6.   Parametername_C

Parametername__C is the concentration of  the  spike  that was added
to the  background sample.    This  and the  following variable are
necessary in  the QA data set because percent recovery sometimes
varies with concentration.   If a correction for  dilution is needed
for this variable  and the  background concentration, it should be
made before they are reported.


                               II-7

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7.   Parametername_SK

Parametername_SK is the measured value  of the mixture of the spike
with the background sample.

8.   Parametemame_A, Pararoetername_D,  and Parametername_M

The  parametername_A   (analysis  problem  code)r   parametername_D
(detection limit  code),  and parametername_M  (method  code)  vari-
ables,  although not  unique  to  QA  data sets,  should always  be
included in them for each parameter.  The detection limit code is
especially important,  because QA data  often  have to  be treated
differently when  there are values  below  detection limits.   The
documentation should  spell out  how  values  below  detection limits
were handled:

     a.   whether  the reported concentrations  that  were  below
          detection limits were truncated to the Method Detection
          Limit (MDL), or replaced by zeroes or negative numbers,

     b.   whether values below the MDL were used to calculate any
          parametername_S values, and

     c.   whether values below the MDL were used to calculate any
          parametername_P values.

If data sets; using any other QA variable names  are submitted to the
CBPCC, the accompanying documentation must  define them in terms of
the  variables  listed above,   or specify  how to  calculate  the
variables above from  the  variables  in  the  submitted  data set.   A
sample QA data  submission with  the  correct use of variable names
is shown in Figure II-A.
                               II-8

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                                         FIGURE II-A
                           SAMPLE QA DATA SUBMISSION FORMAT
BS
DOC_
A
1
2
3
i 4
5
6
7
8-
9i
10
11
12
13
14
15
16
17
18
19
DATE
_A

070AN91
07JAN91
07 JAN 91
07JAN91
07JAN91
07JAN91
07JAN91
07JAN91
07DAH91
07JAN91
07JAM91
07JAN91
08JAN91
08JAN91
0807VN91
08JAN91
08JAN91
08JAN91
08JAH91
TINE


12:22
12:22
12:22
12:22
11:09
11:08
11:08
10:10
10:10
8:20
8:20
8:20
13:05
13:05
13:05
13:05
13*05
11:50
11:50
SDEETH


0.5
13.0
25.0
25.0
0.5
6.0
25.0
0.5
9.0
0.5
7.0
28.0
0.5
20.0
20.0
20.0
2O-.O
0.5
0.5
STATION


MCB4.3C
MCB4 . 3C
MCB4.3C
HCB4 . 3C
MCB4.4
MCB4.4
MCB4.4
MCB5.1
MCB5.1
MCB5.2
MCB5.2
HCB5.2
MCB3.3C
MCB3.3C
MCB3.3C
MCB3.3C
MCB3.3C
HCB4..1C
MCB4 . 1C
CR0ISE


BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132
BAY132.
BAY132
BAY132
BAY132
BAY132
BAY132
REPJFYPE


SPK
LAB
LAB
SPK
LAB
SPK
LAB
LAB
SPK
LAB
LAB
LAB
LAB
LAB
LAB
SPK
SPK
LAB
SPK
DOC


2.36
2.33
2.41
2.41
2.52
2.66
2.78
2.60
2.62
3.16
2.54
2.72
2.34
2.94
2.44
2.94
2.44
2.43
2.43
                                                          DOC D  DOC N  DOC S  DOC SK  DOC C  DOC P
                                                                             3.82    5      105.6
                                                                2      0.26
                                                                             4.42    5      118.0

                                                                2      0.06   .       .      .
BS  NH4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
0.0 &7
0 . 04E.
0.053'
0.053
0.020
0.020
0.04'1
0.020
0.014
0.023
0.026;
0.030
0.08*
0.060.
0 .057
Oi.060
0^.057.'
0.099
0. 099'
          NH4 D  NH4 H  NH4 S  NB4  SK  NH4 C  NH4 P
                              0.092   0.127  103.150
                                                    NH4 A  N02
                                                                   N02  D  N02 N  NO2 S
                       0.002
0.0103
0.0084
0.0084
0.0084
0.0086
0.0085
0.0079
0.0079
0.0081
0.0088
0.0097
0.0075
0.0116
0.0099
0.0101
0.0099
0.0101
0.0116
0.0116
                                                                                        NO2  SK
0.0182
                                                                                0.0001
                                              II-9

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             CHAPTER ZZI:  DATA SUBMISSION PROCEDURES

Every file  stored in  the CBP  Environmental Data  Base must  be
accompanied by a related file documenting where the data came from,
who may be  contacted to  obtain additional information  about it,
what organizations sponsored and collected the  data,  the reasons
for collecting the data, published documents or reports associated
with the data, and other  items.   Documentation on data base files
is  essential  for drawing  meaningful  interpretations  of  data
contained in the data base.   In addition, data base management is
dependent upon structured, easy-to-use documentation.

A.   DATA BASE STRUCTURE

Almost all data files stored in the CBP Environmental Data Base are
stored in the form  of SAS  data sets.   Since SAS data  sets are
stored in a  compressed format, they cannot be viewed on a terminal
without first  running  a  SAS program  to convert the  data  into a
readable format.  Documentation, however, is stored on-line as text
files for all  users  to view through CHESSEE.   In  CHESSEE,  three
types of documentation are stored for every data set:

     o    Structured, textual description file;

     o    Contents (labeled variables) of the SAS data set;

     o    Number,  mean, minimum, and  maximum values  for the data
          set variables.

Computer center staff prepare the SAS contents and means files once
data sets are in SAS  format.  These two files  are  useful to CHESSEE
users to  locate  particular  data parameters and to  programmers
writing SAS jobs that access  the data  base files.  The main source
of information about the  data,  however, is  the  data  description
file. The Data Documentation  Form (Appendix E) is used to document
data files received from a variety of  sources, and is more general
than the Data  Set  Documentation Form  (Appendix  D) .   The Data Set
Documentation. Form; is used by established CBP Monitoring Programs
and is filled in with program specific information not required of
other data  submitters.  All  other data  submitters  should use the
Data Documentation Form (Appendix E).

To retrieve information from  CHESSEE,  the CITIZEN account has been
set up on the CBP computer.   Users with computer communications
capabilities can dial up the  CBP Computer Center, and by using the
menu-driven  CHESSEE,  find a vast  amount of  information without
having to make a formal data request.


                              III-l

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To  find out more  about  how  to use  CHESSEE,  call  the Computer
Center:

      (301) 267-0061  (Annapolis)
      (800) 523-2281  (other areas)
      FTS  691-6873

Retrieving actual data  from any of  these  data  bases must be done
through the  CBP  Data Management Coordinator.  A Data Processing
Request  Form and  an Operations Request  Form can  be  found  in
Appendix  H  of  this  document.   These  Forms are  also in CHESSEE.
They can be printed from CHESSEE and will be mailed by the Computer
Center if the CHESSEE sign-on address prompts are completed.

B.-.. COMPLETING A DATA DESCRIPTION FILE

The Data Documentation Form or Data  Set Documentation Form must be
filled out for every data set submitted to the CBP.

The Data Documentation Form is divided into 25  sections  or fields.
This form is structured to document  a  wide variety of data such as
water quality,  sediment/ biological, and physical  (meteorological,
tidal,  flow,  current data, etc.) data.   All  of the information
needed for data management and  interpretation should be contained
IB.' the documentation file, if" completed properly.

CBP documentation is stored in a standardized and versatile format
structured  to  resemble  the  format of  files  in  NOAA's National
Environmental Data Referral Service  (NEDRES) . With this  compatible
format, the  CBP  can easily transfer its data documentation files
to NEDRES to keep NEDRES updated with information  on  Chesapeake Bay
data.    This format also  provides  for   efficient computerized
searching of the documentation.  The  format is versatile because
any field in the description file can be expanded or collapsed as
needed to facilitate entry of all the necessary information.

Whenever  possible,  the  data  description file should be submitted
on the  same  magnetic tape or diskette which contains the related
data, so  that the  data  and documentation  are never separated.  A
notable exception to this is  when data are submitted on magnetic
tape  in' SAS transport format.

Guidelines  are presented in Appendix D and E  for filling in the
necessary information for each field of  the Data  Set Documentation
Form  and the Data Documentation Form.
                              111-2

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C.   DATA SUBMISSION

Submission of machine-readable data is required  of  all  organiza-
tions submitting data to the CBP data base.  The CBP offers several
options for transferring data files:

     o    Transferred on 9 track magnetic tape, either 1600 or 6250
          bits per inch (BPI).

     o    Transferred directly  through  a computer  communication
          network  with  error-checking  capability, such as KERMIT.

     o    Transferred on an IBM-PC compatible floppy diskette.

     o    Entered  interactively  onto  the CBP  VAX  8600  computer
          either in Annapolis or from  a  remote terminal.

     o    Transferred on a Macintosh 3 1/2 inch disk.

The CBP stores most  of  its data base files in the form of SAS data
sets.  For those organizations who also  maintain data sets in SAS
format, the CBP prefers to receive data in this form.  For all data
not in SAS  data sets,  the CBP requires  column-formatted data in
fixed length records.

1.   Magnetic Tape Transfer

There are three; categories of magnetic tape transfer:

     o    Data from other VAX computers;

     o    Data from other computers in SAS format; and

     o    Data from other computers in column-formatted sequential
          files.

Data tapes should  be mailed to:

          Computer Sciences Corporation
          EPA/Chesapeake Bay Program
          410 Severn Avenue, Suite 112
          Annapolis, Maryland 21403

     a.   Data From Other VAX Computers

          There are two ways that data can be  written to tape on
          other VAXes using  either the  COPY or BACKUP command.  For


                              III-3

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     SAS data sets, the BACKUP command must be used.  In all
     other, cases,  the  BACKUP command is preferred over the
     COPY command because it is more reliable.  In addition,
     the following tape specifications are required:

     1)   Taper  density must be  1600 or  6250 bits-per-inch
     2)   Tape must be initialized and properly mounted before
          writing; data onto the tape

     3)   Tape must have a sticker indicating:

          aa)  The  command used to  create  the tape (COPY or
               BACKUP)
          bb)  The  tape's  label,  if COPY were  used;  or the
               Save-set  name(s)  if BACKUP were used
          cc)  The  creation date
          dd)  The  organization and telephone number
          ee)  The  investigator or data processing contact
          ff)  A brief description of contents

b.   Data From Other Computers In SAS Format

     SAS data sets  can be transferred solely or in groups of
     files, called SAS  "libraries,"  using either the SAS PROC
     XCOPY or- PROC COPY depending  on  the  operating system.
     The SAS User's Guide provides instructions in using these
    •procedures.   PROC COPY is used  on the VAX  at  the CBP
     Computer Center to transfer single or multiple SAS data
     sets to and from a SAS Transport  tape.  In  addition, the
               tape specifications are required:
     1.   Tape density must be 1600 or 6250 bits-per-inch

     2.   Tape must be initialized and properly mounted before
          writing data onto the tape

     3.   Tape must have a sticker indicating:

          aa)  That the file is a SAS transport tape
          bb)  The tape density
          cc)  The creation date
          dd>  The organization and telephone number
          ee>  The investigator or data processing contact
          ff)  A brief description of contents
                         III-4

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          4.   .A printout of the  SAS  job's  log file showing  the
               commands  used to  create the transport  tape.

     c.    Data From Other Computers  With Column-Formatted Sequen-
          tial Files

          For data sets that are  not  in SAS format, column  for-
          matted data sets,  written in fixed length records  are
          required.  The tape specifications must  be  as follows:

          1.    The tape  must be  a  9-trackf unlabeled  tape

          2.    The tape  must be initialized  and properly mounted
               before writing data onto the  tape

               aa)   The  tape must  be 1600 or 6250  BPI
               bb)   Record length  of 80-132  is  preferable,  but it
                    may  be longer
               cc)   Fixed record length is required
               dd)   Block size must  be less  than  16,000
               ee)   Block size must be a multiple of  the  record
                    length
               ff)   Tape must be written  in either ASCII or EBCDIC
                    format

          3.    Tape- must have a  sticker indicating:

               aa)   The  density  and  format  (ASCII  or  EBCDIC)
               bb)   The  record length  and block size
               cc)   The  creation date
               dd)   The  organization and telephone number
               ee)   The  investigator or data processing contact
               ff)   Brief description  of contents

     A  description  of  the_ data   format  must  accompany  tapes
     containing column-formatted data.   The  format documentation
     should include a sequential listing  of the names of the files
     on tape  and a detailed listing of  all fields (column headings)
     in each file.   This information must be submitted in addition
     to the required documentation detailed  in  the appendices.

2.   Data Files Transferred Directly  Through a Computer Communi-
     cation Network with Error Checking Capability

Data files can be transferred  to the CBP  VAX from other large
computers or personal computers with  communication capabilities.
The CBP VAX is equipped with 1200/2400 baud ASCII,  and KERMIT-32


                              III-5

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communications..  For  KERMIT-32,  the host  computer  (data source)
should not be set in server mode.  This status requires additional
user commands which can be found within  a  KERMIT Help file (once
logged in to the VAX,  use the command, HELP KERMIT) .  In addition,
the CBP VAX computer  is connected to the EPA network which links
VAX and IBM computers.

The actual  data transfer procedure will  depend on the  type of
computer used and the type of communication  software.  The protocol
for communicating with the VAX  from  a remote computer is explained
in Section 4,  below.  After logging  on, it  is necessary to use the
communications program on the user's computer to send a file to the
VAX..  The procedure for sending or dumping a file varies with the
computer and communications package.

A description of the  data format must  also be transferred to the
VAX or mailed in hard copy form.  The format documentation should
include  a  sequential listing of  all  files  transmitted  and a
description of the  location of  all fields (column headings).  This
information must be submitted in addition to the  required documen-
tation detailed in the appendices.

3.   Data Files Transferred on an IBM PC Floppy Diskette

Data may be transferred to the CBP on an IBM PC/AT compatible, 5-
inchj  floppy  diskette.  The  data must be  written on a single or
double-sided, 360K, 48-track, soft-sector diskette.

Data- files must be  written in standard  columnar format as an ASCII
text file.

All diskettes must be labeled in the following manner:

     a.   Creation date

     fa*.   Organization and telephone number

     c.   Investigator or data processing contact

     d.   Number of data files

     e.   Brief description of the  contents of each file

A description of the data format must accompany the diskette.  The
format documentation must include a sequential listing of the names
of the files  and a description of the content and location of all
fields  (column headings).   It is helpful if this documentation is


                              IIT-6

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entered on  the  VAX as  a text  file.    This  information must  be
submitted' in addition to the required documentation detailed in the
appendices.

4.   Data Files Entered Interactively onto the  VAX  8600 Computer
     in Annapolis,  Maryland, or from a Remote Terminal

Data may be entered directly into a column-formatted file  on the
VAX via an interactive terminal.  This type of submission requires
a user account on the CBP computer and  access to a terminal,  either
at the  CBP  or from a  remote location, with  a modem  capable  of
communicating with the VAX.

Data entered:  directly must  be column-formatted.    Data  records
(lines) may be of any length,  but those 132  characters or less in
length are the easiest to enter and edit using the VAX full-screen
editor.   If data are entered  using the VAX  editor, there  is a
physical  limit  of 255  characters  per record,  delineated  by a
carriage return; however, multiple  80  or  132-character lines may
be entered to form logical  records longer than 255 characters.

A description  of the data format must  also be entered onto the VAX
or submitted in hard copy form.   The  format  documentation should
include a sequential  listing  of the  names  of  the files  and a
description 
-------
          301-.841-5264  (Annapolis/Baltimore exchange)
          202-234-6628  (Washington, D.C., exchange)
          800-445-2795 toll free, but see 800 Access, below

Terminals that emulate Digital Equipment  Corporation VT100, VT200,
or VT300 series terminals  will be  able to fully utilize features
of  the VAX  8600  command  language  and  full  screen  editor  for
entering data sets.  Other terminals may  work, but  may have to use
the VAX line editor which is not as easy  to use  as  the full screen
editor.

The required terminal  characteristics  for access on the 301-841-
5264 and the 202-234-6628 numbers are listed below:

     a.   No> parity;

     b.   7 or 8 bits per character;

     c.   Multiple  baud rates are allowed, depending  on  user's
          equipment  (Note: The VAX will  support 1200 or 2400-baud
          dial-in modems);

     d.   ASCII format; and

     e.   1 stop^bit.

The required terminaJi characteristics for access on the  800 number
are listed' be-low:

     a.   Even parity;

     I».   1200 Baud only;

     c.   7 data bits;

     d.   1 stop bit;

     e.   A menu will  appear with  a prompt to enter a  selection.
          Although  it  may  not appear as a valid selection on the
          menu, enter X25.

     f.   A message "Connected" will appear.  Enter the following
          to connect, to the CBPO VAX:  C 31060050025501

     g.:.   Enter user name and password.
                               III-8

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5.   Data Transferred on a Macintosh Diskette

Data may be transferred to  the CBP on Macintosh  (3 1/2 inch) micro
floppy disks.  Data may be on either  single-sided (400k) or double-
sided (800k) disks.

Data must be submitted  in  ASCII  format.   Communications software
is available to transfer Macintosh data files to or from the VAX.
                              III-9

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                CHAPTER IV:  DATA APPROVAL PROCESS
An  overview of  the  data  approval  process   for  Water  Quality
Monitoring data is depicted' in Figure IV-A.

                           FIGURE IV-A
          Simulation of Data Flow to the CBP Data Base
           Field Data and
          Sample Collection
                            Samples
                  I
                    data and
                    collection
                    report
 Laboratory Analysis/
~>  Identification/
  Enumeration
        I
        I data  and
        I analytical
        I report
            QA/QC Officer
               Review    <~
                  I
                  I
                  V
          ~>  Data Management
             > Coordinator
    data errors
    corrected &
    resubmitted
               !l
               I  data entry
               I  data submission
             V v
         Received at
           the CBP
data set       I
accepted-
veri fi cat i on
listings sent
  data set not
  accepted-problem
  listing sent
                     data quality
                     assurance checks
                     verification report
                 Notify CBP
                 Monitoring Coordinator
         EPA Signoff as Acceptable
                                                EPA Tracking
                                             IResponsibility
         Data Available to CBP
                                   cies
         Data Available to Public

-------
Data in  the CBP data base  are  generated by an  originator.   The
originator may  be  an individual,  or part of a public or private
organization.   The originator may  be  involved in a  one-time or
ongoing  data  collection  program in any of the waters within the
Chesapeake Bay basin.

Data originators are  responsible  for the  overall quality of data
submitted to  the CBP.   That  quality is  maintained  by following
proven  sampling and laboratory  analysis  procedures.   If  the
originator is under contract with the EPA CBP directly or through
a grant, EPA quality assurance procedures, data submission format,
and timeliness conditions are requirements of the funding.  These
EPA grant  conditions are used  only as  a model  in  this approval
process1  for all  other Chesapeake  Bay data not  directly funded by
EPA.

The following is required grant/contract deliverable language for
use by funding agencies in requiring submission of collected data
to the CBPCC data base:

     All data collected under this SCOPE OF WORK/GRANT/CONTRACT
     will  be  submitted  to  the CHESAPEAKE  BAY  PROGRAM COMPUTER
     CENTER AND;/OR [SPECIFIED AGENCY]  as a  verified, electronic
     data file  WITHIN [SPECIFIED  TIME  PERIOD]/UPON COMPLETION OF
     THE CONTRACT/GRANT AND NOT TO EXCEED [SPECIFIC TIME PERIOD].
     Thei data will be submitted  in accordance  with  the format,
     documentation  requirements,  data  dictionary  standards,  and
     procedures  described  in  the  most  recent   version of  the
     Chesapeake  Bay  Program  Data  Management  Plan.    Prior  to
     submission, data must  be evaluated using  the  established
     Chesapeake Bay Program Computer Center quality assurance range
     checks available through the Chesapeake .Bay Program Computer
     Center AND  [SPECIFIED AGENCY]  in  accordance with the appro-
     priate Chesapeake Bay Program Data Management Plan.

Notes; Capitalized words are word choices  to be made by the agency
on an individual basis to fit the type  of financial award agree-
ment .

Capitalized words enclosed with brackets are to prompt agencies to
include  specific references to an  individual  agency or specific
time period.

The originator submits data to the CBP Computer Center  (CBPCC) by
any of the  previously mentioned methods.   Data must be submitted
in VAX-compatible  format.   The preferred format  is SAS transport
file format with all parameters adequately labeled and defined as


                               IV-2

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in the Data Submission Guidelines chapter.

If the data are supplied to the CBPCC in tabular column format, the
submitting agency should  attempt  to translate the data to  a SAS
data set format meeting the above specifications.  When this is not
possible, the CBPCC staff will reformat  the data.

The  next  two paragraphs apply  to  established  Water  Quality
Monitoring Programs only.

Once the data are- in SAS data set format, the CBPCC processes the
data set against verification programs.  The verification programs
generate data reports to aid the originator in reviewing the data
to correct errors.  The error  and warning  report  is particularly
important and lists the  entries that  do not  meet  warning and/or
critical ranges established for each parameter.  These ranges must
be provided to the CBPCC by each submitting agency and updated as
ranges are narrowed for  location and  season.   The verification
listing is returned to the data originator within  10 working days
of the data submission.   In the future,  it will be required that
originators verify the data with range and character checks before
the data is  submitted to the CBP, eliminating this  step.   A SAS
PROC MEANS for submitted  SAS data sets  is  now required to verify
that no errors came into the data set  during transfer.

The originator is1 then responsible for reviewing the verification
listings.   If any errors  are  found,  or  questions arise,  the
originator submits corrections to the  CBPCC.  A time limit of ten
working days is set for  returning corrections.   This submission,
verification, and corrections  cycle will continue  until the data
set is error free.

The next step in  the  data approval process  is acceptance of the
data and associated documentation  by EPA.  The step  can be a formal
signing by the originator and the CBP  Monitoring  Coordinator if
the data are part  of an EPA funded program.  Sign-off in this case
is based on the condition that the data originator agrees to make
any necessary corrections that arise within a period of two years
following formal  acceptance of the data.
                               IV-3

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                 CHAPTER V:  DATA. BASE SUMMARIES
Chesapeake Bay data  collection and  analysis  are performed  by a
variety  of state,  federal,   university,  and  private  agencies.
Ongoing monitoring programs sample established locations throughout
the 64,000 square mile Bay watershed including the fresh water tri-
butaries, the  main stem,  and the Atlantic Ocean at the mouth of the
Chesapeake Bay.  Other special studies may  occur  anywhere in the
watershed and these are also  included in  the  Chesapeake Bay data
basest

This chapter addresses issues  relevant to  five major types of data
at  the  Chesapeake Bay  Program Computer  Center:  Water  Quality,
Living Resource,  Sediment, Historical,  and Toxics data.   Of the
five, only Water  Quality and Toxics data have been  fitted  to a
consistent., uniform  data  structure throughout the  data  base.
Efforts are underway at the CBPCC to standardize the remaining data
structures.   Due  to  the variety of data sources and types,  the
large volume of data  being collected, and the overlap of one data
type with another  (for example, toxics  in fish tissue)  standard-
ization and data integration is expected to be an ongoing process.
                               V-l

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A. WATER QUALITY DATA BASE

The Chesapeake Bay Program water quality data base is a compilation
of data  from Chesapeake Bay Agreement  monitoring programs since
1984.  It  includes mainstem, tributary,  and fall line monitoring
data.

Water quality  data are usually the reference to which all other
types  of  aquatic  data  are compared.    Extensive efforts  have
therefore  been made to standardize and  quality  assure the water
quality monitoring data base.  Procedures are in place from data
collection to data, storage and  retrieval to make data availability
as smooth  and timely a process  as possible.  Analysis  of these
procedures for improvement is an ongoing process.

"Known quality" is  the  goal  for  all  data  placed in  the water
quality data base and to that end a variety of software tools have
been, and are being, applied to the data base.  A careful account-
ing of changes, in  methods and detection limits over time has been
made for all parameters.  Water quality and nutrient data collected
before 1984 are described in Section D, below.

     Sources of Data:,

     Alliance  for  the Chesapeake Bay
     D.C.  Department of Consumer and Regulatory Affairs
     Maryland. Department of Health & Mental Hygiene Laboratory
     Maryland Department of the Environment
     Univ. of Maryland Chesapeake Biological Laboratory
     Metropolitan  Washington Council of Governments
     Occoquan Watershed Monitoring Laboratory
     Old Dominion  University
     Pennsylvania  Department of Environmental Resources
     Susquehanna River Basin Commission
     U.S.  EPA  Central Regional Laboratory
     U.S.  Geological Survey
     Virginia  Division of Consolidated Laboratory  Services
     Virginia  Institute of Marine  Sciences
     Virginia  State Water Control Board
                               V-2

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B. LIVING RESOURCE DATA BASE

Living resource  monitoring  attempts to  track the  abundance and
distribution of living resources and the quality of their habitat
over time so that correlations and relationships with water quality
may be examined.   Management of living  resource  populations and
governance of the overall Bay restoration effort require monitoring
of living resources.

The living resource  data base  contains  over 100 data  sets that
detail  finfish and  shellfish  abundance,   juvenile  indices  for
selected species, submerged  aquatic vegetation  (SAV)  species and
extent, commercial catch landings, habitat  characterization, and
benthic  community  surveys,   etc.    The   compendium  of  data sets
currently in the  living resource data  base may  be  obtained via
CHESSEE.  A  list of data sets  scheduled for acquisition  may be
obtained by contacting the CBPO.

The data base  is  maintained in SAS  and geographic information
system  (GIS)  formats.  Despite  the uniqueness and commonality of
living resources  data, there is still a variability of data formats
and methodologies among data sets.   Data retrieval,  at this time,
is accomplished on a data set by data set basis due to this vari-
ability.  Efforts  are  underway  to integrate  these  data sets and
thereby improve data availability.

Each SAS  data  set is fully  documented  in CHESSEE to  enable ap-
propriate retrieval and analysis.  The documentation  (for these and
all, CHESSEE data sets)  includes: an abstract; data submitter/data
contact; parameter list;  parameter ranges; related data  sets; and,
results, if any, of quality  assurance checks.  Refer to Appendix
D for  an annotated description  of all  data  set  summary documen-
tation fields.   The data user  is  here  reminded  that reasonable
quality assurance checks have been applied  to every CHESSEE data
set  (see  Chapter II)  but it is the data user's  responsibility,
ultimately, for use of and conclusions from the data.

     Sources of Data::
     Maryland Department of Natural Resources
     Maryland Geological Survey
     National Marine Fisheries Commission
     National Oceanic and Atmospheric Administration
     Univ. of Maryland Center for Environmental & Estuarine Studies
     Univ. of Maryland Marine Advisory Program
     U.S. Fish and Wildlife Service
     Virginia Institute of Marine Sciences
     Virginia Marine Resources Commission


                               V-3

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C. SEDIMENT DATA BASE

Many  organizations  have  undertaken  sediment  data  collection
programs in the Bay.   Data  collection  efforts  cover a wide range
of subjects,  including measuring sediment  flux,  sediment-oxygen
demand, sediment nutrient regeneration, determining sedimentation
rates, and  characterizing toxics in  sediments.    Non-CBP  funded
sediment data collection programs are asked to follow the policies
and procedures of this plan as closely as possible.

     Sources of Data:
     Academy of Natural Sciences of Philadelphia
     Virginia Water Control Board
     D.C, Department of Consumer and Regulatory Affairs
     Johns Hopkins University
     National Oceanic and Atmospheric Administration
     Old Dominion University
     Maryland Department of the Environment
     Maryland Department of Natural Resources
     University of Maryland
     Virginia Institute of Marine Sciences
                               V-4

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D. HISTORICAL CHESAPEAKE BAY DATA

The Chesapeake Bay Program  (CBP)  maintains and  updates environ-
mental, data  bases containing well  over  a  hundred million  data
elements.   The historical  data base  (approximately  1/3  of the
total) is defined as  the data sets which contain  data collected
during the  research  phase  of  the  CBP,  current water quality,
biological,  and sediment monitoring data, and data collected prior
to 1984.   Historical data does NOT include geographic information
system (GIS)  data in digitized form.

Historical data may be grouped into eight categories.   The living
resource: data base is discussed in section B,  above, the sediment
data base in section  C,  above, and the toxics data base  in section
E, below.  The other categories are:  physical;  culture; discharge
(point and non-point  source),  flow, and nutrient  (current programs
discussed in Section A,  above).  Each of these is discussed below.

1. Physical Data Base

The physical data base  contains climate,  tide,  and water-current
data collected from approximately 1950 to 1987.   The climate data
includes wind patterns,  rainfall, air  temperatures, solar radia-
tion, and daily weather  summaries.  Hourly  tidal height data for
16 stations  in the Bay, is included, usually for the complete period
of record' at a given  station.   Water-current measurements  were
collected during special studies in 1980 and 1981-1983.

     Sources of Data:

     National Oceanic and: Atmospheric Administration
     National Weather Service
     National Ocean Service
     National Climatic Data Center
     National Oceanographic Data Center
2. Culture Data Base

The  culture  data base  includes population  statistics  and land
use/land cover data for  the Chesapeake Bay watershed.  The data is
identified by county.,

     Sources of Data:

     Delaware^ Office of Management, Budget,  and Planning
     Maryland Department of State Planning


                               V-5

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     New York Department of Environmental Conservation
     Pennsylvania Department of Environmental Resources
     U.S. Bureau of the Census
     U.S. Forest Service
     U.S. Department of Commerce
     Virginia Department of Planning and Budget
     West Virginia Department of Economic and Community Development
3. Discharge Data Base

The  discharge data  base  contains  estimates  of  the  amount  of
nutrients and toxic  contaminants entering Chesapeake  Bay waters
from both point and non-point sources.  A Point  Source Atlas of the
Bay  watershed for baseline  year  1985  has   been compiled  for
municipal and industrial sources.

     Sources of Data:

     Northern Virginia Planning District Commission
     Maryland Department of Health and Mental Hygiene
     Maryland Department of the Environment
     Pennsylvania Department of Environmental Resources
     U.S. Environmental Protection Agency
     Virginia State Water Control Board
4. Flow Data Base

The flow data base contains daily metered measurements of the flow
of water  from the Chesapeake Bay tributaries into the  Bay.   The
stations selected for inclusion into the CBP data base are intended
to measure fresh water flow at the tributary fall line.

     Source of Data:

     D.S. Geological Survey


5. Nutrients Data Base

The nutrients  data  base  contains nutrient  and water quality data
collected by  CBP  and non-CBP researchers  who conducted important
nutrient  surveys  in the  past.    These  data  cover the  entire
Chesapeake Bay and tidal  tributaries during the period 1907 - 1990.
A  corollary  data base,  Segments,  contains the same  data  as the
Nutrients  data base  but  aggregated  by CBP  segment  instead  of


                               V-6

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study /researcher.    This  data base  has  not  been  as  stringently
quality assured' as1 the Water Quality data base (see Section A) .

     Sources of Data:

     American University,  Department of Biology
     Johns Hopkins University,  Chesapeake Bay Institute
     Maryland Department  of Health and Mental Hygiene
     Univ. of Maryland Natural  Resources Institute
     Univ. of Maryland Center for Environmental & Estuarine Studies
     U.S. Department of the Interior
     U.S. EPA,  Region III,  Central Regional Laboratory
     U.S. Geological Survey
     Virginia Institute of Marine Sciences
                               V-7

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E. TOXICS DATA BASE
The Chesapeake Bay Program Toxics Data Base project was undertaken
to provide scientists, the regulatory community, and policy makers
with  a  comprehensive  data base  containing  ambient,  loading,
physical/chemical  property,  toxicity,   and  other data regarding
toxic  substances  in the  Bay  Watershed.  The  data base  will  be
comprised of data taken from the studies conducted by the various
participants in the Chesapeake Bay Program.   This  collection  of
data,  from  diverse sources and different time periods,  has been
organized into a standardized set of related tables.  The structure
of these tables has been shaped by both the content of the expected
output products and the format  of  the  input data provided by the
collecting  organizations.   This  is  a  Structured  Query  Language
(SQL)  data  base created using  Statistical  Analysis  System  (SAS)
software.

One  data base  table  consists  of the  concentration  values for
ambient measurements, and the actual or estimated release/loading/-
application values for. both point and non-point  sources, along with
date/time/sample identification information.   Each  value in this
table  also has pointers to associated details stored in the other
data base tables  which cover  source documentation,  chemical and
location; information, and species  information as appropriate. This
storage  structure  allows  the data  from all studies to  be mixed
together without losing the identity of individual observations.

Complete summary documentation  on  each of the  individual contri-
buting datasets is stored in  the  CHESSEE portion of the CBP data
base.  The  Chesapeake Bay Program Computer  Center is not respon-
sible for inaccurate data  which may exist in data  sets or data base
tables.   Reasonable  care has  been taken  to  correct or delete
inaccurate  data.    The quality assurance section of  a dataset's
summary documentation will contain details identifying problematic
data,  if any.
                               V-8

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quantitative  results may  be obtained with a  specified  degree of
confidence.    Confidence  in the apparent analyte  concentration
increases as the analyte signal  increases above the LOD.  Ten times
the standard  deviation is  recommended  for the LOD,  corresponding
to  an  uncertainty  of +30% in the  measured value  at the  99%
confidence  level.    LOQ  is  more  frequently  used  for  organic
compounds.

6.   Undocumented Detection Limit  (UDL)

In many historical  data sets,  the detection  limit has  not been
identified, such as the MDL or LOQ,  nor has  the means with which
the detection limit was calculated.   The user  of the data is left
without knowing what factors (e.g.,  sample preparation, instrumen-
tation^ methodology, matrix) were included in  the  detection limit
value or what  level  of  confidence is associated with the detection
limit value.   For these cases,  the  responsibility  of how the data
are  used  is   left  to  the  requestor  of  the  data  and  they  are
identified as "Unknown" in the  database.

7.,   Example  of  Detection Limit Calculation

The following detection limit  calculations are based on measure-
ments from seven appropriate samples,  where the t.99 = 3.143 for n-
1 — 6 degrees of freedom.   If more samples are used to determine
the detection, limits,  then the student's t value will change.  The
standard deviation  (S.D.)  is given  for each example.

XDŁ = 3.143 X STANDARD DEVIATION of replicate  injections

     Example;    100: ppb pentachlorophenol standard
          If::         S.D. - 5 ppb
          Then:       IDL - 3 X 5 - 15 ppb

MDL = 3.143 X STANDARD DEVIATION of replicate  analyses
                            (extraction and injection)
     Example:-    100 ppb pentachlorophenol spiked in sample producing average
               measured concentration of 50 ppb  (not all analyte is recovered
               or 77  measured)
          If:        . S.D. - 18 ppb
          Then:       IDL - 3 X 18 - 57 ppb

SQI*. — MDL corrected for sample  parameters

     Bxaiqple:    1001 ppb pentachlorophenol producing MDL of 57 ppb
          If:         Dilution factor - 10 (sample is diluted due to matrix
                     interference or high concentrations of other analytes)
          Then:       SQL - 10 X 57 - 570 ppb
                                B-ll

-------
PLEASE NOTE THE. NEW/ ITEM 0.0 1991 REE VALUATION. PLEASE PUT ANYTHING
THAT HAS TO DO WITtt ANALYSIS,  GRAPHICS,  TECHNICAL WRITING ETC  FOR
ANY: OF THE 91 REEVALUATION  STUFF  IN THIS CATEGORY. ALSO, CHARGE THE
HOURS TO 1991 ON THE ACTIVITY SHEET.

PLEASE NOTE THE NEW  ITEMS 0. TECHNOLOGY  TRANSFER.  PUT  ANYTHING
UNDER HERE  THAT  INVOLVES TECHNOLOGY TRANSFER WITH ANYONE ELSE...
OTHER EPA SITES, OTHER  CSC SITES,  ANYONE  ELSE IN  THE UNIVERSE,
ETC	

!!!!!! ! !! .11.11 ! »! !!!!!!! I'M ! I!!!!!!!
REMEMBER to use  the request number format:  (Request #XXX,  X hrs)
or (x hrs).

WEEKLY REPORT FOR WEEK ENDING:

0.  TECHNOLOGY TRANSFER:

00. 1991 REEVALUATION:

1.,  COMPUTER CENTER HARDWARE, FACILITIES AND SYSTEM MANAGEMENT:
                                              J
2.  USER SUPPORT AND DATA  REQUESTS:

3.  ROUTINE!', MONITORING DATA PROCESSING:

4.  MONITORING DATA ANALYSIS:

5.  MONITORING; PROGRAM SUPPORT:

6.  LIVING  RESOURCE DATA PROCESSING:

7.  LIVING  RESOURCE DATA ANALYSIS:

8.  LIVING  RESOURCE PROGRAM SUPPORT:

9?.  TOXICS  DATA PROCESSING:

10:.. TOXICS  DATA ANALYSIS:

Hi. TOXICS  PROGRAM  SUPPORT:

12. NPS MODELING SUPPORT AND  TRACKING DATA ANALYSIS:

13;. NPS CIS SUPPORT:

14. COEEP

15. THE THREE-DIMENSIONAL  TIME  VARIABLE MODEL DEVELOPMENT  (3-D):

-------
16.  THE  HYDROLOGICAL  SIMULATION  PROGRAM-FORTRAN  (HSPF)  MODEL
DEVELOPMENT t

17. THE POINT SOURCE PROGRAM:

18. DATA BASE DEVELOPMENT:

19. TECHNICAL WRITING:

20. BAY BAROMETER:

21. CITIZEN MONITORING:

22. CIS DEVELOPMENT:

23. GIS ANALYSIS:

24. ITEMS OF INTEREST WERE PERFORMED:

-------
WEEKLY REPORT FOR. WEEK ENDING:   September 27, 1991

19. TECHNICAL WRITING:

Susan? met with Maggie, KimB, and Lacy to discuss the progress and
development of the 1991 Phosphorus Trends Report.  She also worked
on developing and editing text and graphics  for the report, meeting
with JohnP  several times to develop  data  sets and  meeting with
Peter to discuss changes  to the Appendices  and graphics.   (Request
* , 39 hrsy

-------
WEEKLY REPORT FOR WEEK ENDING:  September 27, 1991

0.  TECHNOLOGY TRANSFER:

Scott worked with Jim Haller of the Office of  the Inspector General
to transfer  large data files  from 8 millimeter tape  to 9-track
tape.   (4 hrs)


1.  COMPUTER.CENTER HARDWARE, FACILITIES AND SYSTEM MANAGEMENT:

Scott  performed  system  management   and hardware  and  software
troubleshooting for the VAX and Macintosh computers.  He delegated
PC tasks to Rodney.  He controlled the priorities of VAX runs for
the retreat.   (23 hrs)

Scott began phasing  out the  9-track  backup tapes.   At this point
the 8 millimeter tapes are being used for nightly and full backups
and the 9-track tapes  are used for weekly backups.   Full backups
are still being  performed with 9-track  tapes as  backup  to the 8
millimeter tapes.  (8 hrs)

Scott worked on installing the Vaccelerator board in the VAX.   (1
hr),

Scott  worked  with  BrianF   on  the  installation  of  the  Sun
workstation.   (4 hrs)

-------
Rich Kelley

PLEASE NOTE THE NEW ITEM-6-, 1991 REEVALUATION. PLEASE PUT ANYTHING
THAT HAS TO DO WITH ANALYSTS, GRAPHICS,  TECHNICAL WRITING ETC  FOR
ANY OF THE 91 REEVALUATION STUFF IN- THIS CATEGORY. ALSO,  CHARGE THE
HOURS TO 1991 ON THE ACTIVITY SHEET.

PLEASE NOTE THE NEW  ITEMS  0.  TECHNOLOGY TRANSFER  AND 00.  1991
REEVALUATION.  PUT  ANYTHING UNDER  HERE THAT  INVOLVES  TECHNOLOGY
TRANSFER WITH  ANYONE ELSE... OTHER EPA  SITES,  OTHER CSC  SITES,
ANYONE ELSE IN THE UNIVERSE,  ETC. ...

I!!!!!!!!!!!!!! IH!!!!! I! I!!!!!!!!!
REMEMBER to use the= request  number format: (Request  #XXX,  X hrs)
or  (x hrs).

WEEKLY REPORT FOR WEEK ENDING:   September 27, 1991

15'. THE THREE-DIMENSIONAL TIME VARIABLE MODEL DEVELOPMENT  (3-D) :

Rich worked on graphics for the retreat scheduled 30 Sep -  1 Oct.
(Request fM052, 20 hours.)

Rich started drafting a response to a letter from the Atmospheric
Research  and Exposure  Laboratory  (AREAL)  in  RTP.    The  letter
requested information about the 3D model.  (Request #M055,  7 hrs)

Rich executed DCL  and FORTRAN code which processes  model data as
produced by the Corps of Engineers (COE).  He  generated seasonal
and  annual  average,  files  for  the  existing,   forest,  and  40%
reduction in N and P scenarios..   (Request #M030,  10  hrs)

Rich spoke with Sharon LeDuc (RTP) about  precipitation  data which
was received for the Chesapeake Bay Watershed from EPA  at  RTP. He
also started the analysis of this data.   (Request #M054,  .5 hrs)

At Ed  Stigall's request, Rich started an analysis of the mass of
TP1'in  the interpolated portion of  the Bay.    A string plot was
made showing the time varying mass  for three scenarios and for the
five years starting in  January  1984.   The three scenarios were
existing  conditions,,  all forest,  and  40%  reduction in N  and P.
(Request fM053, 8 hours.)

-------
WEEKLY REPORT FOR WEEK ENDING: September 27, 1991

MPS

JohnP continued work  on  a systems  design document for a PC based
data entry program.  The data dictionary was updated with revisions
recommended by the data analysis workgroup.  The software product
GENIFER  was reviewed  for possible  application to  the  project.
(Request #1034, 20 hrs)

1991

JohnP create several data files for SusanP.  These will be included
in the Phosphorous Trend Report.   (8 hrs)

JohnP created XY graphs  with the average concentrations of Total
Phosphorous (TP) , Total Dissolved Phosphorous (TOP) , Orthophosphate
(PO4F)', and Particulate Phosphorous  (PHOSP) plotted against time.
(Request #1034, 8 hrs)

-------
WEEKLY REPORT FOR WEEK ENDING:  27 SEP 1991

19. TECHNICAL WRITING:

     MaggieM met with' KimB, SusanP, and LacyW to discuss priorities
and organize jobs.  MaggieM worked on the regression plots and the
MD/VA maps  for  the Phosphorus  Report.  She then assimilated the
complete  document  and  produced  the  PageMaker  final  draft  for
approval. (Request #WQ18,  27.5  hrs.)

20. BAY BAROMETER:

     MaggieM assembled the September  Bay  Barometer and delivered
the copy to ScottM for labeling and mailing.  (Request #WO23,  2
hrs.)

-------
NAME:
           maqgiem
W/B   9/27/91
1 ACTIVITY 18 1 SIM 1 T I IflfHIf [TOTAL
^ „,.. __., „„ .--,-(- --( — ^ ^ ^ - y,. ^ ....
|SS SECRETARIAL SUPPORT 1 1 1 1 1 1 1 1
|OP. COMPUTER OPERATIONS I 1 1 1 1 1 1 1
ISYS. SYSTEM MANAGEMENT 1 1 1 I 1 1 1 1
IUSER SUPPORT 1 1 1 1 1 1 1 1
k.-— 	 k~4~4-4— k— k~4-4 	
IDATAR. DATA REQUB3TS 1 1 1 1 1 1 1 1
k... 	 . 	 .. 	 I...4-4— k~4~4-4-4 	
IMONDP. MONITORING DATA 1 1 1 1 1 1 1 1
1 PROCESSING j j j i ' i i i i
IMDA. MONITORING DATA 1 1 1 1 1 1 1 1
11991 1991 REEVALUATION I I 1 1 1 1 1 1
IMPS. MONITORING PROGRAM I 1 1 I 1 1 1 1
ILRDP. LIVING RES. DATA 1 1 1 1 1 1 1 1
1 PROCESSING iiiiiiii
ILRDA. LIVING RES. DATA IIIIIIII
[ 	 ^!!!f. 	 -k__4.._4-4-4-~4-4-4 	
ILRPS. LIVING RESOURCES IIIIIIII
1 PROGRAM SUPPORT iiiiiiii
ITOXDP. TOXICS DATA IIIIIIII
1 PROCESSING iiiiiiii
ITOXDA. TOXICS DATA IIIIIIII
1- 	 ™!!if_.._ 	 4—4— 4— 4— 4— 4— 4— 4 	
ITOXPS. TOXICS PROGRAM IIIIIIII
|. 	 S!!POR! 	 _...4...4...4— 4— 4— 4— 4- 4 	
1- 	 	 4-4-4-4-4-4-4-4 	
[ROUND TO NEAREST 1/2 HR. 11111111
ACTIVITY 13 1 SI Ml T 1 WITHIF 1 TOTAL
ma. DPS MOD. Ill II 1
NEGIS. UPS GIS I ||
COP A. COSEP | |
COEPA. COEEP | |
HSPF. HSPF REG. I |
SUPPORT III
• •• ••*> •• •»« T*» T ^"r *
3-0. 3-D MOD. | |
SUPPORT i i i
POINT. GEN: PUT. | j
DBASE. CPB DATA I
TW. TECHNICAL I I
WRITING j j I 3
BB. BAY | |
III
- 4 i 4 i \
1 1 1
1 1
1 1
k— k-4-4-4 	 \
i i
i
i
S i« ]6 17. 51 28. 5
..__l.._l.___i._J._?_._.
CITMO. CITZEN I | I
.. 	 ^!:— 4-4-4-4-4-4-4-4 	 -
POP. POPULAT. I | |
	 D™_ 	 4.._4-4-4-4_.__l.___l_.._4 	 J
PA. PUBLIC |
AC. PRG. |

SICK . . 4. 4 .4. \
v^!!™ 	 -k__4-4~J

TOTAL J^ II5
* INCLUDE ANY EXTRA HOURS WORKED

,..4-.i...-l..4 	 -
k— k-4-4-4 	 -1
k-4-4-4-4 	 -1

616 16 17. 51 30. 5 J
J

-------
NAME: Scott McDlatmid

I ACTIVITY IS 1 S I M 1 Tl WITHIF 1 TOTAL
IMAM. GEN. MNQT. 1 1 1 1 1 1 1 1
|SS SECRETARIAL SUPPORT 1 1 1 1 1 1 1 1
|OP. COMPUTER OPERATIONS I 1 1 1 I 1 1 1
ISYS'. SYSTEM MANAGEMENT | | | | | | j j
(USER SUPPORT 1 1 1 1 1 1 1 1
IDATAR. DATA REQUESTS 1 1 1 1 1 1 1 1
IMONDP. MONITORING DATA 1 1 1 1 1 1 1 1
PROCESSING I
(• 	 -j. 	 -j- 	 -j- 	 t 	 1 	 + 	 -1- 	 t 	
IMDA. MONITORING DATA 1 1 1 1 1 1 1 1
1- 	 ^!f!! 	 4 	 4 	 4 	 4 	 4____4___ 4... 4 	
11991 1991 REEVALUATION 1 1 1 1 1 1 1 1
[ . SO!PORI 	 44444444
IMPS. MONITORING PROGRAM I 1 1 1 1 I 1 1
ILRDP. LIVING RES. DMA 1 1 1 1 1 1 1 1
|- 	 ^™ff™° 	 4 	 4 	 4 	 4 	 4 	 4 	 4 	 4 	
ILRDA. LIVING RES. DATA 1 1 1 1 1 1 1 1
ILRPS. LIVING RESOURCES 1 1 1 1 1 I 1 1
1 PROGRAM SUPPORT 11111111
ITOXDP. TOXICS DATA 1 1 1 1 1 1 1 1
^P ROCKS S IMG 1 1 1 1 1 1 1 1
	 4- 	 t 	 t 	 t 	 -1- 	 t 	 t 	 t 	
ITOXDA. TOXICS DATA 1 1 1 1 1 1 1 1
I- 	 4 	 4 - 4 	 4 	 4- -4 - 4 - 4 -
ITOXPS. TOXICS PROGRAM 1 1 1 1 1 1 1 1
1- 	 !!!!!R! 	 4____4___4__ 4 .4 4.4.4.
[ 	 4._._4..__4- 4--4--4--4--4 	
[ROUND TO NEAREST 1/2 HR-||I|II|I

ACTIVITY IS 1 SI Ml
NTS. NPfl MOD. I | | |
NPGIS. NFS <3IS | |
COPA. COEEP | |
COBPA. COEEP | j )
HSPF. H8PF REC. | |
3-D. 3-D MOD. | |
POINT, GEN. PNT. | |
DBASE. CPB DATA | |
BASE DEV 4____4__--4----4--
TW. TECHNICAL I
BB. BAY |
BAROMETER 1111
CITMO. CITZEN | |
POP. POPULAT. |
DAIA . 4 4. .4.. .4..
PA. PUBLIC
AC. PRG.
?!!f!A! 	 4____4 	 i....4._

!A^2! 	 4 	 4 	 4 	 4..
LWOP 1111
TOTAL 1 1 1 8 1 7
* INCLUDE ANY EXTRA HOURS WORKED.
W/B September 27, 1991

Tl WITHlF 1 TOTAL)
"" "•","•",•" 	 ,
1 1 1
1 1 1
1 1 1
1 1
1 1 1
1 1 1
._4--4~-4--4 	 -1
i i
..4-— 4--4--4 	 -\
i
..L..4-...4--4 	 1
..1...4--4--4 	 1
. i_..4....4....i 	 ]
i
|
..l-l-i-i 	 i

._4--4--4--4 	 -1

| 9 | 8 | 8 | 40 ^
J

-------
WEEKLY REPORT FOR WEEK ENDING:Sept.27'91
19. TECHNICAL WRITING:

Kimberly  proofed,  edited,  and  created graphics  for the  Total
Phosphorus Trends Report.   (Request #W018,21 hrs)

-------
WEEKLY REPORT FOR WEI"'* ENDING: September 27, 1991

15. THE THREE-DIMENSIONAL TIME VARIABLE MODEL DEVELOPMENT  (3-D) :

Bob performed extensive modifications  to  the FORTRAN  3D model
processing and  mapping program MODMAP  for the  living resources
criteria analysis.  These modifications included refinements to the
pie chart  creation and plotting  routine and  the  subroutine for
generating ARC/INFO compatible plot  files.   (Request #M052,  31.5
hrs)

Bob computed and plotted seasonal  mass totals of Total Phosphorous
for the three 3D model  scenarios  of  (1)  Existing Conditions,  (2)
40% Reduction of  Total  Phosphorous  and Total Nitrogen  and  (3)
Forest Conditions.  (Request #M053, 3 hrs)

Bob up-loaded to the VAX and reformatted  using  Word Perfect all  32
rainfall  files  sent  to us  from  Research  Triangle  Park  (RTP).
(Request IM054,  3 hrs)

-------
WEEKLY REPORT FOR WEEK ENDING: 09/27/91

1.  COMPUTER CENTER HARDWARE, FACILITIES AND SYSTEM MANAGEMENT:
Brianf performed system backup,  restored lost files, install files
to system and perform other tape requests.
40 hours.

-------
PLEASED NOTE THE NEW ITEM 00 1991 REEVALUATION. PLEASE PUT ANYTHING
THAT HAS TO DO WITH ANALYSIS,  GRAPHICS, TECHNICAL WRITING ETC  FOR
ANY OF THE 91 REEVALUATION STUFF IN THIS CATEGORY. ALSO, CHARGE THE
HOURS TO 1991 ON THE ACTIVITY SHEET.

PLEASE NOTE  THE NEW  ITEMS 0.  TECHNOLOGY TRANSFER.  PUT ANYTHING
UNDER HERB THAT  INVOLVES TECHNOLOGY TRANSFER WITH ANYONE ELSE...
OTHER EPA SITES,  OTHER  CSC SITES,  ANYONE  ELSE IN  THE UNIVERSE,
ETC	

f! !! ! ! !!.! If Hi! ! Ml ! ! ! • ! ! !!!!!!!!!!!
REMEMBER to use the request number format:  (Request #XXX,  X hrs)
or (x hrs) .

WEEKLY REPORT FOR WEEK ENDING:

0.  TECHNOLOGY TRANSFER:

00'. 1991 REEVALUATION:

1.  COMPUTER CENTER HARDWARE, FACILITIES AND SYSTEM MANAGEMENT:

2.  USER SUPPORT AND DATA REQUESTS:

3.  ROUTINE MONITORING DATA PROCESSING:

4.  MONITORING DATA ANALYSIS:

5.  MONITORING PROGRAM SUPPORT:

6.  LIVING RESOURCE DATA PROCESSING:

7.  LIVING RESOURCE DATA ANALYSIS:

8.  LIVING RESOURCE PROGRAM SUPPORT:

9.  TOXICS DATA PROCESSING:

10. TOXICS DATA ANALYSIS:

11. TOXICS PROGRAM SUPPORT:

12. NPS MODELING SUPPORT AND  TRACKING DATA ANALYSIS:

13. NPS CIS- SUPPORT:

14. COBEP

15". THE THREE-D.IMENSIONAL TIME  VARIABLE MODEL DEVELOPMENT  (3-D) :

-------
16.  THE  HYDROLOGICAL  SIMULATION  PROGRAM-FORTRAN  (HSPF)   MODEL
DEVELOPMENT:

17. THE POINT SOURCE PROGRAM:

18. DATA BASE DEVELOPMENT:

19. TECHNICAL WRITING:

20. BAY BAROMETER:

21. CITIZEN MONITORING:

22. GIS DEVELOPMENT:

23. GIS ANALYSIS:

24. ITEMS OF INTEREST WERE PERFORMED:

-------
                      APPENDIX A:

QUALITY ASSURANCE POLICY FOR INCORPORATION  OF DATA INTO
  THE  CHESAPEAKE BAY PROGRAM COMPUTER CENTER DATA BASE

-------
APPENDIX A:  Quality Assurance Policy for Incorporation of Data into the
           Chesapeake Bay Program Computer Center Data Base
            UTXVB SUMMARY

   This5 appendix outlines the quality assurance policy and procedures
   for incorporation of historical and future data into the Chesapeake
   Bay Program  Computer  Center data base.   Quality assurance (QA)
   software will be used to  screen incoming data.   Computer Center
   staff will, make every  effort  to  correct  inaccurate data and,
   failing that, eliminate it.  Anomalous (true) and questionable data
   will be handled on a case-by-case basis.   Changes to the original
   data and QA failures will  be documented in the Summary documenta-
   tion.     In  all  cases,  the  original data  will  be  available.
   Increased levels of effort will be necessary  for Computer Center
   staff to adequately identify and document problematic data.

   B.    BACKGROUND

   Many different types  of historical  data have been  and are being
   submitted to the Chesapeake Bay Program Computer Center (CBPCC) by
   institutions and investigators in a variety of formats.  Documenta-
   tion that  accompanies these data comes  to the CBPCC  in various
   stages of completeness.  Using the data, the documentation, and any
   other relevant resources, the CBPCC staff  creates a meaningful set
   of CHESSEE documentation.  CHESSEE documentation includes  a Summary
   file (containing  administrative information  about  the source of
   the data, methods, an abstract, and  links to  other  data sets),  a
   SAS Contents  file,  a SAS Means file, and  a Station  List (con-
   taining station latitudes  and longitudes).

   In the  past, historical data  sets  submitted  to the  CBPCC were
   minimally processed and little,  if any,  range checks were applied
   to the data' (a notable exception was the Chesapeake Bay Institute's
   water quality and nutrient data, which was extensively checked and
   cross-checked)!.   Besides  obvious keypunch  errors,  little  or no
   corrections were made to  the data unless specifically directed to
   do'so by the  data submitter.  It has generally been assumed that
   the organization  submitting the  data would  have  performed  the
   required quality assurance checks on the data.

   CBPCC staff: has taken  steps to improve data quality and provide an
   easy to use  and reliable data base.   Currently,  historical (pre-
   1984)  water quality and nutrient data sets are being reorganized.
   Variable  names  and reported  measurement units  are  being stan-
   dardized  as  described in the Data  Management  Plans  for  Living
   Resources, Sediment, and Water Quality data.  Summary documentation


                                  A-l

-------
files  now contain  more  method descriptions  and remarks  about
problematic data.
C.   Qh POLICY AMD PROCEDURES

1 .   Policy

It is tlie policy of the Chesapeake Bay Program Computer Center that
all  submitted data  sets must pass  through established quality
assurance checks  where all problematic data  (defined  below)  are
flagged and documented prior to incorporation into the CBPCC data
base.  In order to provide data in its most accurate and complete
(with respect to the original version) form, the CBPCC staff will
employ  algorithms that  identify  problematic  data  and  make  all
reasonable attempts  to correct and/or document  the occurrences .
Bona fide bad data,  in the form of documented analytical problems/
accidents, etc.,  will  be eliminated.   Questionable  and anomalous
data are kept on the basis that retaining significant information
is of utmost  importance.   Summary documentation will be attached
to  each file delineating  all such  cases  of  questionable  and
anomalous data to  inform and aid  the user  in making  the most
qualified decisions on the validity of certain  data.  The original
file is maintained and available if needed.

2:.   Procedures'

In order to identify the three types of problematic data, all data
will  be run  through range  checks  (ranges  are provided  by  the
submitter) ,  dependency  checks  (with  other related data,  e.g.,
NO23=NO2-fNO3) ,  and  statistical  measures.   Data  identified  as
problematic via these methods are treated on a case-by-case basis
for correction and/or documentation.

Inaccurate data may be corrected with confidence on the advice of
the source agency /PI, the information  in the accompanying documen-
tation, or the experience of the data set processor in correcting
non-standard units, etc.  Examples of  inaccurate  data include non-
standard units, shifted decimals, physical  impossibilities  (pH of
17, salinity  of 400) ,  incorrectly labeled columns,  and incorrect
numbers submitted by the PI that  fall  into the  range checks, etc.,
thereby eluding detection.  Every attempt  shall be made to correct
inaccurate data.  Corrections made by the data set processor will
be documented in the summary file for  the  data  base .  The original
file is maintained.

Data that are anomalous  or questionable  are indicated as such in
the  summary  file  for the data  base.  This  gives  the  user the


                               A- 2

-------
opportunity to. analyze data in context,  a more appropriate way to
establish validity than  simply viewing  single  values.   The  SAS
program that converts  the original submitted data file into an on-
line  data, base  is also  maintained  in  order to  document  all
reformatting and changes made to the original data in the process.

D.   PROBLEMATIC DATA: DEFINITION

For the purposes of this document, problematic data are defined as
those data  which show a divergence,  either  an  error or  a true
occurrence,  from the  typical  contents  of the data  set.   Because
this divergence can be the  result of a  true or false condition in
the data  set,  three categories of  problematic data can  be des-
cribed:

1.   Inaccuracies

These data are obviously false.  Examples of inaccurate data would
include a  salinity recording  (ppt)  of 322.0, water  temperature
(deg. C) of  209.0,  and BOD levels noted by the  principal inves-
tigator to be the result  of improper lab analysis.

2.,   Anomalies

Anomalies:  are true  data  which  depart  from  the   "typical"  and
therefore fall, outside acceptable limits of defined range checks.
In some cases, the anomaly may be understood  in combination with
data recorded in another data  set.  Examples of anomalous data are
an extremely high measurement  of algae at a particular station and
date  (the result of a sewage spill  in the area) or  an atypical
secchi measurement  due to flood or heavy rains.

3.   Questionable data

These data appear to be inaccurate data  in the context of the data
set, but could just as well be true because the inaccuracy cannot
be verified.  This  grey area between inaccurate and anomalous data
is  caused" by time constraints,  economical constraints,  lack of
documentation and/or  contacts, or other conditions  which make it
impossible to determine the true or false nature of the data.

E.   THE CURRENT PROBLEM

Problems  still  exist   within  the CBP  data base, including data
submitted  with inadequate  documentation  and questionable data
values. . At present, problematic data are sometimes made available
to users without notification of questionable or inaccurate values.


                               A-3

-------
In  addition,  data within  the data base  may also be  duplicated
because of multiple submissions to CBPCC.

Ideally,  effective  data management  action  would  be to  remove,
correct,  and/or  flag data which  are  inaccurate or  false,  while
retaining any true fluctuations or variances in the data.  However,
true fluctuations and variances  are often  due to factors which are
beyond the scope of  the data  set, and could be incorrectly flagged
or  altered  as errors.   In  order  to minimize  the  risk  of this
occurring, new data sets will be processed according to the above
policy.

F.   BUDGET

The cost  to  run  QA  checks on all  incoming  data  will be substan-
tially higher than previous data base efforts.  Currently, limited
QA checks supplied by the data submitter are run on the federally
funded water  quality monitoring data (mainly range  checks).   QA
checks  on  Living Resources  data  beyond  those in  the  Living
Resources Data Management Plan have yet to be developed.

The data that is already in the historical data base will be very
costly to convert to  the proposed  standard.   Currently, there is
no effort budgeted  for data  base development during FY92.   Data
that requires' QA checks will need to have associated funding by the
subcommittee requesting the work.
                               A-4

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         APPENDIX B:




QUALITY ASSURANCE DEFINITIONS

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                           APPENDIX B:

                  QUALITY ASSURANCE DEFINITIONS

The following definitions are included here to assist  the reader
in organizing quality assurance  terminology and issues.  They are
current, working definitions at the Chesapeake Bay Program Office.

A.   BLANK DEFINITIONS

The  purpose  is  to  standardize working definitions  of  blanks
generated in the field and laboratory, and to have equivalent terms
used in the Toxics database.  These terms should also be reflected
in any working Quality Assurance document (e.g., Quality Assurance
Project Plans  or  Sampling and Analysis  Plans) for  a  particular
research project to ensure consistency.

The primary purpose of blanks is to trace routes of contamination.
A  number  of  blank types  are  routinely used in  the  field and
laboratory.  Each  type traces a different source of contamination.

1.   Field Blanks

Field blanks are generated at the time  of sampling.  These blanks
provide ans evaluation of  contamination from  the sampling process
through' the analytical scheme.   Field blanks include Field Matrix
Blanks, Sampling Equipment Blanks,  and  Trip Blanks.

     a.-..   Field Matrix Blanks

     Field matrix  blanks  are composed  of  analyte  free materials
     which resemble the  matrix to be sampled.   Field matrix blanks
     are generated at the time of sampling, are transported to the
     field,  and  are  exposed to  the  same  conditions  as   field
     samples.  The cap is removed,  and  the blank preserved as the
     sample  and recapped.  The  field matrix blank  is  a  tool for
     assessing contamination from all field and laboratory sources,
     including the total sampling effort, sample preparation, and
     measurement process.

     b.   Sampling Equipment  Blanks

     Sampling  equipment blanks  are samples  generated  from the
     sampling equipment in use.  Analyte  free water is passed over
     equipment  before   or after  sampling.    Equipment  includes
     implements used to remove  samples  and  filtering  apparatus.
     These blanks provide information on  contamination  as a result


                               B-l

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     of carryover in equipment.

     c.   Trip Blanks

     Trip blanks allow  the  evaluation  of contamination generated
     from sample  containers,  sample  storage,  and  changes,  both
     chemical and container, occurring during the shipping process.
     Trip blanks are not  exposed to  field conditions.   These are
     typically associated with  the analysis of volatile  organic
     compounds.

2.   Laboratory Blanks

Laboratory blanks identify  contamination encountered only during
the  analytical  process.    These  blanks  provide  information  on
potential sample contamination encountered at various points during
analysis.

     a.   Method Blanks

     Method blanks encompass contamination encountered during the
     sample preparation (digestion,  extraction, or  leaching) and
     measurement process.   Analyte free water is handled in the
     same, manner  as an environmental  sample.   According to the
     method, they are prepared at the beginning of the process and
     carried, through all steps of sample  preparation and analysis.
     This blank contains the most analytical sources of error.

     b.   Reagent Blanks

     Reagent blanks are prepared using method specific reagents,
     filter media,  or other  materials used for sample preparation.
     These blanks are not digested  or extracted like a sample, but
     represent  only  reagents  used  in   the  sample  preparation
     process.  They are indicative of contaminants present in the
     reagents or analytical system.

     c.   Holding Blanks.

     Holding blanks are usually composed of laboratory pure water
     and  stored with a sample  set  in  the  same  kind  of sample
     container.   These  blanks  are  analyzed at the  end of sample
     storage.   Analytical  data  provides  information on  cross
     contamination occurring in sample storage.  Generally, holding
     blanks are analyzed only for volatile organic  compounds.

     d.   Instrument Blanks


                               B-2

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Instrument blanks measure the presence or absence of instru-
ment artifacts.  These blanks, without  reagents,  are intro-
duced into the instrument as it cycles through the measurement
sequence to evaluate contamination from the measurement system
only.   These  are  usually  associated with  chromatographic
analyses, spectral analyses, or mass spectrometry.

e.   Calibration Blanks

Calibration blanks  are prepared from the same reagents matrix
used in standard preparation.  These blanks are used to zero
the instrument's response to background levels  of analytes in
the reagent matrix.   These  are periodically measured during
the analysis to monitor any baseline shifts.
                          B-3

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B,   CHEMICAL SPECIES/PHYSICAL FRACTION DEFINITIONS

To eliminate any confusion associated with the reason for analysis,
definitions are provided for the different types of fractions that
the  sample  can be  physically  divided  into  and the  toxically
important species frequently analyzed.

The form that each sample was analyzed for must be indicated with
the sample concentration, either on the basis  of physical fraction
or on the basis of the  chemical form or  species.   Only the valid
codes listed below will be accepted for entry of chemical species
into the: Chesapeake.  Bay Toxics  Database  based on the definitions
provided.   The "CHEMSEEC"  file will accept  an  8-digit  code to
define the chemical species  associated with a  sample concentration
value.

1.   Dissolved

The fraction of the sample that is in solution rather than absorbed
to the  particles.    Passes  through 0.45u filter.  The  sample is
filtered and then the filtrate is digested and analyzed.

2.   Particulate

The fraction, of the; sample which is out of solution, in particles,
filters ('0.45u)"; out.  The sample is filtered and then the filter
is digested and analyzed.

3.   Total

Following a  rigorous digestion,  the concentration present in the
entire  sample  or  the sum of the dissolved  and particulate frac-
tions, representing  the total analyte present in the sample.

4.   Total Recoverable

After a mild digestion procedure, the concentration present.

5.   Acid-Soluble

The fraction of the  sample  in solution  and  loosely  bound to the
particles.   The sample  is acidified,  filtered,  then digested and
analyzed.
                               B-4

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C.   INSTRUMENT TYPES

The objective of this field,  "INSTRMT," in the Toxics database is
to provide the user of the data with a general idea of the type of
chemical analysis performed  on  the environmental samples.   This
will be accomplished by reporting  the  instrument  type along with
the associated data set  (results).  The user of the data will then
know quickly if the data are generally field screening-type data,
laboratory-type data, or, for  instance,  data with  second column
confirmation.   In addition, by knowing  the  type  of instrument
employed,  the data user will have  an  indication  of  what physical
form or chemical species were measured in the sample and at what
range of  concentration the  analyses were performed.   Detailed
information associated with each data set--e.g., the method, sample
preparation, and  QC  information  (field  and  lab)--is  located in
other fields or is described in the data summary files.

Chemical analyses  are  considered  to include  any type  of test,
whether performed in a fixed laboratory  facility or hand-carried
to  the  field  sampling  location.    To  assist  individuals,  the
following general terms have been  defined to  distinguish between
different types  of instrumentation  based on  where and  how the
instrument is operated.

o Portable

Instrument that,  an individual  can carry with their  hands or on
their back' and, conduct the analyses.

o Fieldable

Instrument that requires a van to transport the equipment.  Usually
the instrument needs  a portable generator.

o Mobile

These instruments are set-up in  a mobile  laboratory facility, with
specific operational  criteria  (e.g.,  power,   atmosphere,  sample
preparation) .

Only  the: following  codes  will be accepted  for entry  into the
Chesapeake  Bay  Toxics  Database of instrument types  utilized in
chemical analyses. The  "INSTRMT"  file will accept an  8-digit code
to  define  the instrument type  associated with a data  set.   The
laboratory  performing  the analyses  must  specify the instrument
utilized according to the codes for the instrument  groupings listed
below.  Only valid codes will be  accepted.  Instruments which do


                               B-5

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not fall into .one  of  the categories must have a code designated.
This  can be  achieved by  calling the  CBPCC  at  (800)  523-2281.
Either the  staff  will assist you in identifying the appropriate
code  from  the list  or  a  new code  will  be established  for the
instrument if necessary.

CODES     INSTRUMENTATION DESCRIPTION

AACHE     Atomic Absorption, Chelation Extraction Technique
AACV      Atomic Absorption, Cold Vapor Technique
AAFLAM    Atomic Absorption, Direct Aspiration Technique
AAGF      Atomic Absorption, Graphite Furnace Technique
AAHYD     Atomic Absorption, Gaseous Hydride Technique
ADTOA     Auto-Analyzer  (e.g., Technicon)
COLOR     Ultraviolet/Visible Spectrophotometer
FLUOR.     Fluorometer
GC        Gas Chromatograph
GC/PID    Gas Chromatograph with Photoionization Detection
GC/HECD-   Gas Chromatograph with Hall Electrodyte Conduction
GC/ECD    Gas Chromatograph with Electron Capture Detection
GC/FID    Gas Chromatograph with Flame lonization Detection
GC/EC     Gas Chromatograph with Electron Capture Detection
GC/MS'     Gas Chromatograph with Mass Spectrometer
GRAV      Gravimetric
HPLC/EC   High Performance Liquid Chromatograph/Electrochemical
HPLC/FL   High Performance Liquid Chromatograph/Fluorescence
HPLC/UV   High Performance Liquid Chromatograph/Ultraviolet
1C        Ion Chromatograph
ICP       Inductively Coupled Plasma Atomic Emission Spec.
ICP/MS    Inductively Coupled Plasma/Mass Spectrophotometer
IR        Infrared Detection
ISE       Ion Selective  Electrode
KITS      Field Kits  (e.g., Hach or CHEMetrics' or PCB commercial
          field kits)
PHMETER   PH Meter
POA/FID   Portable  Organic  Analyzer,  Flame  lonization   (e.g.,
          Foxboro OVA)
POA/PID   Portable Organic Analyzer,  Photoionization (e.g., HNU,
          Photovac)
SCINT     Scintillation  Counter
TEM       Transmission Electron Microscope
TITRA     Titration
XKF/'Xi     X-Ray Fluorescence, Laboratory Scale Model
XRF/F     X-Ray Fluorescence, Field Portable or Transportable
WET       Analysis by Classical Wet Method
                               B-6

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D.   EXAMPLES 07 METHOD REFERENCES

To provide a means of identifying the type of sample preparation,
type of  analysis conducted,  and compound  or element  measured,
methods used in the  analyses are to be reported with the data set.

1.   Government Agencies

For federal agencies, the code should cite the reference document
followed by the method number.
CODES

EPA SW846 METHOD 8020

EPA SW846 METHOD 7131

EPA CLPSOW METHOD INO

EPA CLPSOW METHOD QTM
                    METHOD TITLE

                    Aromatic Volatile Organics

                    Cadmium (Atomic Absorption, Furnace Tech.)

                    Statement of Work for Inorganic Analysis

                    Statement of Work, Quick Turnaround Method
EPA MCAWW METHOD 245.5   Mercury in  Sediment  (Manual  Cold Vapor
                         Tech)
EPA AIR ME3JHOB' TO-14
EPA ITD METHOD 1625
                    The  Determination  of  Volatile  Organic
                    Compounds  in  Ambient  Air  Using  Summa
                    Passivated  Canister  Sampling  and  Gas
                    Chromatographic Analysis

                    Semivolatile Organic Compounds by Isotope
                    Dilution GCMS
EPA SMEWW METHOD 3120B   Inductively Coupled Plasma Method

EPA DW METHOD 508        Determination of Chlorinated Pesti-cides
                         in Water  by Gas Chromatography with an
                         Electron Capture Detector
2.
Literature Reference
For  these sources  of information,  the method cited  should be
documented in, the following fashion:

Journal, volume-, number,  year,  first page number (e.g., Analytical
Chemistry, Volume  55, Number  7,  June 1983,  page 712A) .    This
citation would be coded as follows: An Chem, 55,7,83,712A.
                               B-7

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References

CLPSOW:   Contract Laboratory Program Statement of Work
MCAWW:    Methods for Chemical Analyses  of  Water and Wastes (EPA
          200 and 300 Methods) .  Environmental Monitoring Services
          Laboratory.  EPA/600/4-79/020.
MOCAMIW:  Methods for Organic Chemical  Analysis  of Municipal and
          Industrial Wastewater (EPA 600 Methods) as presented in
          40 CFR Part 136,  Guidelines Establishing Test Procedures
          for the Analysis  of Pollutants under the Clean Water Act.
SW846:    Test Methods for  Evaluating Solid Waste; Physical/Chemi-
          cal Methods.  Office of Solid Waste.
EPA AIR:  Sampling  and Analysis  of Toxic  Orqanics  in the  At-
          mosphere .  ASTM Symposium.  American Society for Testing
          and Materials.  Philadelphia,  PA.
EPA DW:   Methods for  the  Determination of Organic  Compounds  in
          Drinking  Water   (EPA   500  Methods) .     Environmental
          Monitoring  Services   Laboratory.      Las   Vegas,   NV.
          EPA/600/4-88/039.
ITD:      Industrial Technology Division
SMEWW:    Standard  Methods  For  the  Evaluation  of  Waste  and
          Wastewater, American Public Health Association, Washing-
          ton, DC.
AOAC:     Official  Methods of  Analysis  of  the Association  of
          Official Analytical Chemist.   Association  of Official
          Analytical Chemists.  Washington,  DC.
                               B-8

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E.   DETECTION; LIMIT TYPES

The term detection limit is frequently used without qualification.
However,  there are  several  methods for  calculating  detection
limits.  Detection limits can be calculated  for the instrument used
for  measurement,   for  the  analytical  method,  or  as a  sample-
specific quantitation limit.  The term detection limit should be
considered generic unless the  specific type  is defined,  which
occurs many times  with historical data.  The practice  of using the
symbols "T" or "tr" for amounts and  the  term "trace" for similar
statements of relative  concentration should be avoided because of
the relative  nature of such terminology, the confusion surrounding
it, and the danger of its misuse.

The following definitions  are intended to provide producers of the
data and users of the  data with an  understanding  of the various
methods  for   calculating  detection  limits,  the terms  used  to
describe specific  detection limits, and the limitations associated
with identification  and quantitation  of chemicals  of potential
concern  at   concentrations   near   specified  detection  limits.
Understanding the  different terms used to  describe detection limits
helps avoid reporting problems resulting  from the confusion during
their use.

I.   Limit: osf Detection (LOD)

The limit of: detection (LOD) is defined as the lowest concentration
level that can be determined to be statistically different from  a
blank.  Additional concepts related to the LOD include the method
detection limit (MDL), the  instrument  detection limit (!DL), and
the sample quantitation limit (SQL).  The recommended value for the
LOD is three  times the  standard deviation  of these measurements.
The MDL, the IDL,  and the SQL are various types of LODs, based on
three times the standard deviation,  but include different sources
of variation-  (instrument, method, or sample-specific) .  Although
they have the same level of variation, the three  types of detection
limits are not the same, but can become the  same  as various factors
drop  out.  of  the calculation.   Detailed  definitions  for  the
detection limits are provided below.

2.   Instrument Detection Limit (IDL)

The instrument detection limit  (IDL) includes only the instrument
portion   of   detection,   not  sample   preparation,  concentra-
tion/dilution factors,  or method-specific parameters.  The IDL is
operationally  defined  as three times  the  standard deviation of
seven- replicate analyses at the lowest concentration level that is


                               B-9

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statistically . different  from  a.  blank.    This  represents  99%
confidence that the signal identified is the result of the presence
of the analyte,  not random noise.  Although not  the  same as the
method detection limit, the IDL is often the quantity reported for
inorganic analyses .

3.   Method Detection Limit  

The  method detection  limit  (MDL)  is  the  minimum  amount  of  an
analyte  that  can  be  identified by using  a specific  method and
sample matrix type.  The MDL assessment is based upon the perfor-
mance of the  entire measurement  system.   MDLs are operationally
determined as three times the standard deviation of seven replicate
spiked samples  run according to the complete  method and reported
with 99% confidence.  Since this estimate includes sample prepara-
tion effects,  the procedure  is more accurate than reported  IDLs and
is typically  greater than  the  IDL.   However,  the  evaluation is
routinely completed on reagent  water,  potentially not addressing
significant matrix interferences that decrease  analyte recoveries .
This estimate of detection limit may be biased  low because recovery
is frequently less  than 100%.   The MDL can be  calculated from the
IDL by use of  sample size, concentration factors, and assuming 100%
analyte  recovery.

4.   Sample Quant it at ion Limit  (SQL)
    individual, sample may  require adjustments  in  preparation or
analyses, such as dilution or use of a smaller  sample aliquot for
analysis due  to  matrix  effects  or the high concentration of some
analytes .  The reported  sample quantitation limit (SQL) is adjusted
to reflect the sample-specific action.  Therefore, SQLs will be the
detection limit  of interest for most samples .

In fact, for the same chemical,  the SQL in  one sample maybe higher
than, lower than>  or equal to SQL values  for  other samples .   In
addition,, preparation or analytical adjustments, such as dilution
of the  sample for  quantitation  of an extremely high level of one
chemical, could result in non-detects for other  chemicals included
in the^  analysis  even though these chemicals may have been present
in very low concentrations in the undiluted sample.  The reported
SQLs  will  take  into  account  sample  characteristics,  sample
preparation,  and analytical adjustments, so the SQLs are the most
relevant detection limit for evaluating non-detected chemicals .

5.   Limit of Quantitation  (LOQ)

The limit-of quantitation (LOQ) is defined as the level above which


                               B-10

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quantitative  results may  be obtained with a  specified  degree of
confidence.    Confidence  in the apparent analyte  concentration
increases^ as the analyte signal  increases above the LOD.  Ten times
the standard: deviation is  recommended  for the LOD,  corresponding
to  an uncertainty  of +30% in the  measured value  at the  99%
confidence  level.    LOQ  is  more  frequently  used  for  organic
compounds.

6.   Undocumented Detection Limit  (UDL)

In many  historical  data sets,  the detection limit has  not been
identified,  such as the MDL or LOQ,  nor has  the means with which
the detection limit was calculated.   The user of the data is left
without knowing what factors (e.g.,  sample preparation, instrumen-
tation, methodology, matrix) were included in the  detection limit
value or what  level  of  confidence is  associated  with the detection
limit value.   For these cases,  the  responsibility  of how the data
are  used is  left to  the  requestor of  the data  and  they  are
identified as "Unknown" in the  database.

7.   Example of  Detection Limit Calculation

The following detection, limit  calculations are based on measure-
ments from seven appropriate samples, where the t-99 = 3.143 for n-
1=6 degrees of  freedom.   If more samples are used to determine
the detection limits,  then the student's t value will change.  The
standard' deviation  (S.D',)  is given  for each example.

IDL — 3^.143  X STANDARD DEVIATION of replicate injections

     Example:    100 ppb pentachlorophenol standard
          If:        S.D. - 5 ppb
          Then:       IDL - 3 X 5 - 15 ppb

MDL — 3.143  X STANDARD DEVIATION of replicate analyses
                                  (extraction and injection)

     Example:    100 ppb pentachlorophenol spiked in sample producing average
               measured concentration of 50 ppb (not oil analyte is recovered
               or 77  measured)
          If:.        S.D. - 18 ppb
          Then:       IDL - 3 X 18 - 57 ppb

SQL — HDL corrected for sample  parameters

     Example:    100 ppb pentachlorophenol producing MDL of 57 ppb
          If:        Dilution factor - 10 (sample is diluted due to matrix
                     interference or high concentrations of other analytes)
          Then:       SQL - 10 X 57 * 570 ppb
                                B-ll

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8.   Codes for. Use in the CBP Toxics Database

Only the following valid codes will be accepted into the Chesapeake
Bay Toxics Database for entry of detection limit types as defined
above.  The "DET_TYPE" file will accept a one-letter code to define
the type of detection limit associated with a sample concentration
value.  If there is difficulty in determining the type of detection
limit when submitting data, the individual should first contact the
laboratory performing the analyses and ask them  to  indicate the
type based on the CBP definitions and then, if necessary, contact
CSC at  (800) 523-2281 for assistance.

DETECTION LIMIT TYPE-                    CODE

Instrument Detection Limit  (IDL)          I
Method Detection Limit  (MDL)              M
Sample Quantitation Limit  (SQL)           S
Limit of Quantitation (LOQ)               Q
Undocumented Detection Limit  (UDL)        U
                               B-12

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F.   METHOD DETECTION LIMIT AMD LIMIT OF QUANTIFICATION

The Analytical  Methods  and  Quality  Assurance Workgroup  (AMQAW)
recommends that the Monitoring Subcommittee adopt a baywide working
definition of method detection limit (MDL)  and limit of quantifica-
tion (LOQ:) for the programs  supplying data to  the  Chesapeake Bay
Program database.   It is proposed that the MDL be defined as three
times the standard deviation of the lowest samples  encountered by
the subject  laboratory  for each parameter.   The limit  of  quan-
tification would be defined as ten times the standard deviation of
the lowest samples encountered by the subject laboratory for each
parameter.

1.   Background

The scientific community as a whole has an unresolved wide variety
of opinions with respect to the calculation and interpretation of
MDLs and  LOQs;.   Each approach  has  its  champion with  a vigorous
statistical justification for the selection of a specific protocol.
Individual   organizations   can  justify   different   approaches.
However, when multiple institutions  are  supporting  a single data
base, the interpretation of their low level data and therefore the
meaning  of  their  detection  limit  statements  become  critical.
Without a prevailing or compelling best  choice among the defini-
tions or  methods  of  calculation for MDL and LOQ,  the  AMQAW has
selected, a feasible approach for those organizations providing data
to the CBF data, base"  so that  data comparisons will be facilitated.

2.   Recommendation

The AMQAW  recommends  that  the Monitoring  Subcommittee  adopt the
working definitions of MDL and LOQ as follows:

     a.   MDL:.  Three times the standard deviation of  the lowest
     samples encountered   by  the  subject  laboratory  for  each
     parameter.

     b.   LOQ:   Ten  times   the  standard  deviation  of the lowest
     samples encountered   by  the  subject  laboratory  for  each
     parameter.

     c..   MDL and LOQ values are to  be  determined  by the running
     of seven replicates of said lowest samples.

     d.   MDLs   are  to be  verified by  each laboratory  for each
     parameter at a minimum annual frequency or whenever a change
     is  made  in   the analytical  methodology.    More  frequent


                               B-13

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     determinations of the MDLs are encouraged.

     e.   MDLs and their method of calculation are to be reported
     in the  data  documentation  provided to  the Chesapeake  Bay
     Program Computer Center with each data set.

3.   Decision

The Monitoring. Subcommittee voted to  accept the  proposed defini-
tions and methods of calculation for the Method Detection Limit and
Limit of Quantification for data  submitted to the Chesapeake Bay
Program data base.
                               B-14

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      APPENDIX C:




PROJECT INFORMATION FORM

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              APPENDIX C:  PROJECT INFORMATION FORM
*                                                                *
*                   PROJECT INFORMATION FORM                    *
*                                                                *
*                           June 1989                            *
*                                                                *
NOTE:     THE FORMATS  SUPPLIED BELOW CAN  BE USED TO  PROVIDE THE
          PROJECT INFORMATION  FORM TO THE CBPCC AS A DATA FILE,
          EITHER ON TAPE OR AS A FILE ON THE VAX 8650 COMPUTER.

          To obtain a  copy of  this document, enter  the following
          in your  account: CHESSEE,  MANAGEMENT, FORMS,  PROJECT,
          PRINT or COPY.

                       PROJECT  INFORMATION

^GENERAL INFORMATION

>PROJECT TITLE:

>PRINCIPAL INVESTIGATOR:

>FUNDING, AGENCY (IES) :

>PROJECT COST:

>PROJECT BEGIN DATE:

>PROJECT END DATE:

>EPA PROJECT NUMBER (if applicable):

>EPA PROJECT OFFICER (if applicable):

>EPA QA/QC OFFICER  (if applicable):

>ADMINISTRATIVE ORGANIZATION:

>PROJECT MANAGER:

>QA/QC MANAGER:

>DATA MANAGER:


                               C-l

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>COLLECTING ORGANIZATION (S) AND CONTACT:
  (Indicate research vessels,  if known)

XANALYTICAL LABORATORY (IES) AND CONTACT:

>PROOECT SUMMARY:

>PARAMETER LIST:

#STATION TABLE. 1:
* (RTVER KILOMETER  is optional;  please complete if known)
*,
*CBP      USER
* STATION  STATION     LAT         LONG         CORRECTED     RIVER
*NAME     NAME(S)     DD MIN SEC  DD MIN  SEC  (from Loran)  KILOM
fSTATION TABLE1:   -  END

fSTATION TABLE2:
*
*  CBP
*S.TATION,    GENERAL DESCRIPTION
*	    	
*
*
f STATION TABLE2:   -  END

fSTATION TABLES -
* GENERAL DESCRIPTION  OF SAMPLING DESIGN AND RATIONALE:
*  (Include types  of samples,  replication)
*
*
*  STATION SAMPLING SCHEME:
* -
*  CBP
*  STATION    LAYER/     SAMPLE NUMBER
*  NAME       DEPTH      OR PROFILE       PARAMETER
*  —______   __	  _	   	_
*
*
fSTATION TABLES:   -  END

>ANNUAL SAMPLING SCHEDULE (DATES-MMDDYY):

>HAS A MAP DEPICTING THE LOCATION OF STATIONS BEEN SUBMITTED


                                C-2

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 (YES, NO)::
 (If yes, indicate date, to whom, or in what  document)

>HAS THE LABORATORY CHAIN OF CUSTODY BEEN  SUBMITTED (YES,NO):
 (If yes, indicate date, to whom, or in what  document)

>HAVE FIELD AND LABORATORY DATA SHEET EXAMPLES BEEN SUBMITTED
 (YES,NO):
 (If yes, indicate date, to whom, or in what  document)

>HAVE MONITORING SAMPLING DESIGN, COLLECTION  AND ANALYTICAL
 METHODS, AND QA/QC PLAN BEEN SUBMITTED?  (YES,NO):
 (If yes, indicate date, to whom, or in what  document)

fDATA ENTRY. AND VERIFICATION PROCEDURES

>ANTICIPATED METHOD, OF DATA KEYPUNCHING:

>METHOD OF VERIFICATION OF THE DATA  (e.g.,  double entry, visual,
 or software verification):

>NAME OF THIS FILE:
 (The CBPCC will complete this section)

>CBPCC DIRECTORY ADDRESS AND NAMING CONVENTION OF ASSOCIATED DATA
 FILES!:
 (The CBPCC will complete this section)

fEND1 OF PROJECT INFORMATION FILE
                                C-3

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*                                                                *
*                                                                *
*                SAMPLE PROJECT INFORMATION FORM                 *
*                                                                *
*                           June 1989                            *
*                                                                *
                         PROJECT INFORMATION

i'GENERXL INFORMATION

>PROJECT TITLE::  Sample Environmental Project

>PRINCIPAL INVESTIGATOR:  Mr. PI

>FUNDING AGENEX:  CBP Member Agency

>PROJECT COST:  $1,000,000/year

XPROJBCT; BEGIN DATE:  01/01/90

>PROJECT END DATK:  12/31/90

>EPA PROJECT OFFICER  (if applicable) :

>EPA QS/QC OFFICER  (if applicable):

>ADMINISTRATIVE ORGANIZATION:  Sample Organization

>PROJECT MANAGER:  Mr. P. Manager

>QA/QC MANAGER:  Mr. Q. A. Manager

>DATA MANAGER:  Mr. D. Manager

>COLLECTING ORGAN!ZATION(S) AND CONTACT:
  (Indicate research vessels, if known)

     Mr. Contact
     Sample University
     101 Bay Street
     Oyster, MD 20555
     R.V. Conchita

>ANALYTICAI, LABORATORY (IE S) AND CONTACT:


                               C-4

-------
     Sample Chemists Inc.
     102 Measurement Road
     Washington,  DC 20016

>PROJECT SUMMARY:

     Sample Samplers University has two  stations,  sampled on the
     first of every month.   The  stations were picked for their
     proximity to commercial fisheries.

>PARAMETER LIST:

     The following parameters are measured at the Station in one
     meter increments unless otherwise specified:

     Temperature
     Conduct iv it y
     Dissolved Oxygen
     Secchi Depth         ** only reported on Surface  record

#STATION TABLE!
*
USER
^STATION
*
^
*


NAME


1
4
CBP
STATION
NAME


XX9.9
ZZ8 . 8



LATITUDE
DD


36
36
MM


59
59
SS


48
36



LONGITUDE
DD


76
76
MM


18
00
SS


20
30


CORRECTED
( Y, N


Y
Y
)




fSTATION TABLE1 -  END

^STATION TABLE2
*
*  CBP.
*STATIO»   GENERAL DESCRIPTION
*	______  _	_ — __—_	
*
  XX9.9     Mouth of the Sample River

  ZZ8.8     Sample River, off of Sample Point

fSTATION TABLE2 -  END
iSTATION
*  GENERAL DESCRIPTION OF SAMPLING DESIGN AND RATIONALE:
                               C-5

-------
*  (Include, types of samples, replication)
*  GBP
*STATION
*  NAME
*_	_	
  XX9.9

  ZZ8.8
            DEPTH
           (METERS)
             20. 0

             20.0
FREQUENCY OF
  SAMPLING

 once/month

 once/month
JUSTIFICATION OF THE
STATION FOR SAMPLING

Proximity to commercial
fisheries
Proximity to commercial
fisheries
fSTATION TABLES -  END

XANNUAL SAMPLING SCHEDULE  (DATES-MMDDYY):

     010190
     020190
     030190
     040190
     050190
     060190
     070190
     080190
     090190
     100190
     110190,
     120190

>HAS A MAP DEPICTING THE LOCATION OF  STATIONS  BEEN SUBMITTED
 (YES, NO).-:
 (If yes, indicate date, to whom, or  in  what document)

     Not requested, but available.

>HAS THE LABORATORY CHAIN.  OF  CUSTODY  BEEN  SUBMITTED (YES,NO):
 (If yes, indicate date, to whom, or  in  what document)

     Not requested, but approved by EPA  QA/QC  officer during site
     visit.

>HAVE FIELD AND- LABORATORY DATA SHEET EXAMPLES BEEN SUBMITTED
 (YES,NO) :
 (If yes, indicate date, to whom, or  in  what document)

     Not requested, but approved by EPA  QA/QC  officer during site
     visit.
                                C-6

-------
>HAVE- MONITORING SAMPLING DESIGN, COLLECTION AND ANALYTICAL
 METHODS,  AND QA/QC PLAN BEEN SUBMITTED  (YES, NO) :
 (If yes,  indicate date, to whom, or in what document)

     Not requested, but approved by EPA QA/QC officer during  site
     visit .

#DATA ENTRY AND VERIFICATION PROCEDURES

>ANTICIPATED METHOD OF DATA KEYPUNCHING:

     Contract with Sample Keypunchers Inc.

>METHOD OF VERIFICATION OF THE DATA {e.g.,  double entry,  visual or
 software verification) :

     Double entry  keypunching.   Program that  checks for  invalid
     characters in character fields and performs range checks and
     statistical analyses on numeric fields.

>NAME OF THIS FILE:

     CThe CBPCC will complete this section.)

>CBPCC DIRECTORY ADDRESS AND NAMING CONVENTION  OF ASSOCIATED  DATA
     (The CBPCC will complete this section.)

#END OF PROJECT INFORMATION FILE
                               C-7

-------
        APPENDIX D:




DATA SET DOCUMENTATION FORM

-------
            APPENDIX D:   DATA SET DOCUMENTATION FORM
*                                                                *
*                  DATA SET DOCUMENTATION FORM                  *
*                                                                *
*                           June  1989                            *
*                                                                *
NOTE;:     THE FORMATS  SUPPLIED BELOW CAN BE USED  TO PROVIDE THE
          DATA SET INFORMATION TO THE CBPCC AS A DATA FILE, EITHER
          ON TAPE OR AS A FILE ON THE VAX 8650 COMPUTER.

          To obtain a computer copy, enter the following: CHESSEE,
          MANAGEMENT, FORMS, DATASET, PRINT or COPY.

                     DATA SET INFORMATION

ŁCHANGES MADE SINCE LAST SUBMISSION

fGENERALt INFORMATION

>PROJECT TITLE:

>DATA MANAGER OR CONTACT PERSON FOR THIS DATA SET:

>NAME' OF THIS DATA SET DOCUMENTATION FILE:

>NAME OF THE ASSOCIATED DATA FILE(S) :

>DATA SET FORMAT  (RAW, SAS , ETC.) :

>NAME OF THE DATA SET CHECKLIST FILE (S) :
 (The, CBPCC will complete this section)

>NAME OF THE PROJECT DOCUMENTATION  FILE:
 (The CBPCC will complete this section)

>CATEGORY CODE;:
 (The CBPCC will complete this section)

>DATA FILE SUMMARY:

>CRUISE f (if applicable):

>SAMPLING; DATES:


                               D-l

-------
>NUMBER OF OBSERVATIONS BY PARAMETER, STATION, AND  CRUISE
 (if applicable):

>NOTES FROM CRUISE AND LABORATORY LOGS  (important deviations from
 sampling or analytical protocols, observations  of  natural
 phenomena, etc.):

^METHODOLOGY (for each new or parameter, method, or detection
*limit not previously documented):
*
*•
* LAB ANALYSIS/FIELD METHOD:
*            EFFECTIVE DATE:
*            METHOD SUMMARY:
*       METHOD MODIFICATION:
*                 REFERENCE:
*            REPORTED UNITS:
*          DETECTION LIMITS:
*                    SOURCE:
*
* TEMPORARY OR PERMANENT NAME CODE IN THE METHODS TABLE BELOW:

f PARAMETER METHODS TABLE:
^"
*  USER        CBP     ANALYT  FIELD     DESCRIPTION OF
^PARAMETER  PARAMETER  METHOD  METHOD  METHODS,  UNITS,  AND
*  NAME;       NAME      CODE    CODE    DETECTION LIMITS
*__	___  _	_—  	  	   	
*
fPARAMETER METHODS TABLE:  - END

fSAS PROGRAM TO CHANGE USER DATA TO CBP FORMAT:
#SAS' PROGRAM - END
fOUTPUT FROM CBPCC VERIFICATION PROGRAMS
*,
*
#ENI> DATA SET INFORMATION
                               D-2

-------
*                                                                *
*               SAMPLE DATA SET DOCUMENTATION FORM               *
*                                                                *
*                           June 1989                            *
*                                                                *
                      DATA SET INFORMATION

fCHANGES MADE SINCE LAST SUBMISSION:

     WTEMP UPPER QUALITY CONTROL  LIMIT CHANGED FROM 29.0  TO 30.0
     DEC C.

#GENERAL INFORMATION

>PROJECT TITLE:  Sample Environmental  Sampling Project

>DATA MANAGER OR CONTACT PERSON FOR THIS DATA SET:  Mr. D.  Manager

>NAME OF THIS DATA SET DOCUMENTATION FILE:   Sample91.DOC

>NAME; OF THE: ASSOCIATED DATA FILE(S) :   sampie9i.ssD

>DATA\. SET FORMAT (RAW, SAS, ETC . ) :  SAS

>NAME; OF THE, DATA SETS CHECKLIST FILE(S) :
 (The CBPCC will complete this  section)

     SYS$MONITOR:[Sample.CHECK]Sample91.CHK

>NAME OF THE PROJECT DOCUMENTATION FILE:
 (The CBPCC will complete this  section)

     SYS$MONITOR:[Sample.PROJDOC]Sample91.DOC

^CATEGORY CODE:
 (The CBPCC will complete this  section)

>DATA FILE SUMMARY:

X3RUISE f  (if applicable):

>SAMPLING DATES  (MMDDYY):
                               D-3

-------
     01019O
     020190
     030190
     040190
     050190
     060190
     070190
     080190
     090190
     100190
     110190-
     120190

>NUMBER OF OBSERVATIONS BY PARAMETER,  STATION,  AND CRUISE (if
 applicable):
 (note 480 = 12 months *  20 samples per station * 2 stations)

     BY PARAMETER
          DISSOLVED OXYGEN     480
          SALINITY             480
          SECCHI               24
          TEMPERATURE          480

     BY STATION
          XX9i.9                240
          ZZ8.8                240

     BY CRUISE-
          BAY110               40
          BAY! 11               40
          BAY!12               40
          BAY113               40
          BAY114               0
          BAY115               40
          BAY!16               0
          BAY11.7               40
          BAYlia               0
          BAY!19               40
          BAY120               0
          BAY121               40
          BAY122               0
          BAY123               40
          BAY.124               0
          BAY! 2 5               40
          BAY126 -              40
          BAY127               40
                                D-4

-------
>NOTES FROM CRUISE AND' LABORATORY LOGS  (important deviations from
 sampling or analytical protocols, observations of  natural pheno-
 mena, etc.):

     010190    SECCHI MISSING DUE TO ROUGH SEAS
     020190    DISSOLVED 02 METER REQUIRED NEW MEMBRANE AFTER 6.0
               M SAMPLE
     030190    TEMPERATURE AT 4.0 M IS  SUSPECT BUT  PRESENT IN THE
               DATA SET
     040190;'    R.V. BACKUP WAS USED  (R.V. CONCHITA  IN DRY DOCK)
     OS0190    STATIONS LOCATED VISUALLY  (LORAN MALFUNCTION)
     060190    SAMPLED ONE DAY AFTER LARGE STORM EVENT
fMETHODOLOGY (for each new or parameter,
 limit not previously documented):

     LAB ANALYSIS/FIELD METHOD:
                EFFECTIVE DATE:
                METHOD SUMMARY:
           METHOD MODIFICATION:
                     REFERENCE:
                REPORTED UNITS:
              DETECTION LIMITS:
                        SOURCE:
                           method, or  detection
* TEMPORARY OR PERMANENT NAME CODE  IN  THE  METHODS TABLE BELOW:
>METHODOLOGY DETECTION LIMITS:
* CBP
* PARAMETER
* NAME

  DISOXY
  SALIN
  SECCHI
  WTEMP
LOWER   UPPER   UNITS
  0.0
  0.0
  0.0
 -30.0
 17.0
 36.0
 25.0
100.0
mg/1
ppt
meters
deg C
>METHODOLOGY QUALITY CONTROL LIMITS:
* CBP
* PARAMETER
* NAME
*
DISOXY
SALIN
SECCHI
WTEMP
*:

LOWER


1.0
1.0
0.0
-1.0

UPPER


17.0
36.0
5.0
30.0

UNITS


mg/1
ppt
meters
deg C

STATION


ALL
ALL
ALL
ALL
                                                  MONTH
                                                   ALL
                                                   ALL
                                                   ALL
                                                   ALL
fPARAMETER METHODS TABLE:
                                D-5

-------
*
* USER
* PARAMETER
* NAME



CBP
PARAMETER
NAME



ANALYT
METHOD
CODE



FIELD
METHOD
CODE




DESCRIPTION OF
METHODS, UNITS


  DISOXY
  SALIN
  SECCHI
DISOXY
SALIN
SECCHI
F01G
F01C
  WTEMP      WTEMP      104

fPARAMETER METHODS TABLE  :  - END
 Dissolved Oxygen,  mg/1
 Salinity,  ppt
 Secchi,  meters
 30-cm disk with black and
white quadrants is lowered
 into the water and the
 depth at which the quad-
 rants can no longer be
 distinguished is averaged
 with the depth at which
 the quadrants again can
 be distinguished.
 Water temperature, deg C
#SAS PROGRAM TO CHANGE USER DATA TO CBP FORMAT:

fSAS PROGRAM - END
^OUTPUT FROM CBPCC VERIFICATION PROGRAMS
*
*
fEND DATA SET INFORMATION
                               D-6

-------
      APPENDIX E:




DATA DOCUMENTATION FORM

-------
              APPENDIX B:  DATA DOCUMENTATION FORM
*                                                                *
*                    Data Documentation Form                     *
*                                                                *
DS*| DATA SET NAME
   I
   I

TI*|  PROJECT TITLE

   \
   I
   I

PI*|  PRINCIPAL INVESTIGATOR(S)

   I
   li
   I

PO*|;  COLLECTING OR PROCESSING ORGANIZATION  (address,  telephone
   |  number,  and contact, if different from principal investigator)

   I
   I
   I
   I

PR* |  PROGRAM SPONSOR, CONTRACT, PROJECT,  OR EXPERIMENT NAME
   I;  (include project  officer,  address, and telephone number,  if
   I  applicable)

   I
   I
   I
   \
   I
* These Items must be filled in.

                               E-l

-------
PC I  PROJECT COST AND DATES WHEN STUDY WAS CONDUCTED


     Cost:                  Study Dates:
AB*
ABSTRACT  (Description of project, including purpose,
objectives, hypotheses, results, and conclusions)
DC
DATA COLLECTION DESCRIPTION  (see Data Submissions
Guidelines)
     Observing station or vessel name:

     Data collection type:

     Number of stations  or. sites:

     Number of observations:
PE*
PERIOD OF RECORD
                        YEAR      MONTH       DAY        HOUR

     Earliest Date:            I           I           |

     Latest Date:              I           II
                               E-2

-------
LR* I  LENGTH OF RECORD (Include information about gaps  in  the
   |  record)

   I
   I
   I
   I
   I
   I

GE*|  GEOGRAPHIC PLACE NAMES (See Data Submissions Guidelines)

   I
   |  North Atlantic  Ocean,  Coast,  Mid-Atlantic Bight,  Chesapeake
   |  Bay, USA.
   I
   I
   I
   I
   I
   I
   I
   I
   I

GC I' GEOGRAPHIC CODES (Assigned by CBPCC)

   I
   I
   I
   I
   I
GL*| GRIEX LOCATORS

    |   OFFER LEFT COORDINATES     |   LOWER RIGHT COORDINATES
    |  LATITUDE       LONGITUDE    |  LATITUDE         LONGITUDE
    HN)DegMinSec     (W)DegMinSec  |(N)DegMinSec      (W)DegMinSec
    ,	.	
    I                              I
    i                              i
                               E-3

-------
SS I  SAMPLING SCHEDULE
   |  SAMPLED      TIMES PER            AT           STATIONS
   I          ----           ----------     --------
   |  FOR THE PERIOD FROM                 TO
   I                       ---------------
   I  (Add more specific details below, if  necessary.)
   I
ST*| STATION ID, DESCRIPTION, AND GRID  LOCATORS

    | STATION    LATITUDE      LONGITUDE    RIVER    LOCATION
    |   ID      DEG MIN SEC   DEG MIN  SEC     KM.     DESCRIPTION

    I

    I
    I

    I
    I

    I
    f
    l>
    f
    *
    l>
    I
    I

    I
    I

PA*| PARAMETER NAMES  and  METHOD CODES (see ME field below)
^ «• ••, ^-IM •» •• ^.«B •• «• •• ^ ^ •! ^ ^.^ ^ ^ •• ^ —•• ^ ^v^ «.^ «• ^ *B «• «• ^ ^ ^ •* • ^ ^ ^ ^ ^ ^ ^^^^^^•K^^^W_V^_>^^^^_*B
    |,                                                 COLLECTION
    I PARAMETER                          UNIT OF     OR ANALYTICAL
    |   NAME     LABEL                MEASUREMENT  METHOD CODES

    I
    J>

                               E-4

-------
ME
    >•

    >
METHOD CODE DESCRIPTIONS  (associated with codes in
parameter table; see Data Submissions Guidelines to
complete properly)
     PARAMETER NAME:                 METHOD CODE:

     METHOD NAME:

     METHOD SUMMARY (include sample preservation and storage,
     equipment, calibration procedures, filter pore size,
     reageists, equations, method reference, etc.):
     UNITS OF                        DETECTION
     MEASUREMENT:                    LIMIT:
     QUALITY ASSURANCE  (include precision, accuracy, replicate
     sampling, and any other QA/QC accounting information):
ME
METHOD CODE DESCRIPTIONS  (associated with codes  in
parameter table; see Data Submissions Guidelines to
complete properly)
     PARAMETER NAME:                 METHOD CODE:

     METHOD NAME:


                               E-5

-------
     METHOD SUMMARY  (include sample preservation and storage,
     equipment, calibration procedures, filter pore size,
     reagents, equations, method reference, etc.):
     UNITS OF                        DETECTION
     MEASUREMENT:                    LIMIT:

     QUALITY ASSURANCE  (include precision, accuracy, replicate
     sampling, and any other QA/QC accounting information):
ME   METHOD CODE DESCRIPTIONS  (associated with codes in
     parameter table; see Data Submissions Guidelines to
     complete properly.)

     PARAMETER NAME:                 METHOD CODE:

     METHOD NAME:

     METHOD SUMMARY  (include sample preservation and storage,
     equipment, calibration procedures, filter pore size,
     reagents, equations, method reference, etc.):
     UNITS OF                        DETECTION
     MEASUREMENT:                    LIMIT:

     QUALITY ASSURANCE  (include precision, accuracy, replicate
     sampling, and any  other QA/QC accounting information):
                               E-6

-------
MB
 METHOD CODE DESCRIPTIONS  (associated with  codes  in
 parameter table; see Data Submissions Guidelines to
 complete properly.)
     PARAMETER NAME:                 METHOD CODE:

     METHOD NAME:

     METHOD SUMMARY (include sample preservation and storage,
     equipment, calibration, procedures, filter pore size,
     reagents, equations, method reference, etc.):
     UNITS OF                        DETECTION
     MEASUREMENT:                     LIMIT:
                                             V

     QUALITY ASSURANCE (include precision, accuracy, replicate
     sampling, and any other QA/QC accounting information):
DE
 DESCRIPTORS* (Biological taxonomic  names  and codes,  chemical
 compounds1 and' CAS  codes,  general keywords not used
 elsewhere)
DD*
  QUALITY ASSURANCE/QUALITY  CONTROL PROCEDURES USED BY
  COLLECTING ORGANIZATION AND  CBP-COMPUTER CENTER

  Collecting Organization:

  CBP-Computer  Center:
    Data in this data set have been subjected to reasonable
  quality assurance  checks.  The CBP-CC reminds the data user
t  that use  of and conclusions  from the data are ultimately the
I  user's responsibility.

                            E-7

-------
CO
AVAILABILITY ADDRESS   (Assigned by CBP-CC)
     CBP Computer Center
     EPA Chesapeake Bay Program
     410 Severn Avenue, Suite 112
     Annapolis, Maryland 21403
     (301) 267-0061   (FTS) 691-6873
AV
AVAILABILITY CONDITIONS   (Assigned by CBP-CC)
     Copies of summary information are available on request.
     Data can be requested from the CBP Computer Center by
     letter or telephone.  Requests which require more than two
     hours of staff  time to  complete  must be approved by the EPA
     Chesapeake Bay Program Director.   Requests requiring less
     than two hours are  completed typically in 6-8 weeks;
     requests requiring  more staff time may take 2-6 months,
     depending upon the  nature of the request.

     User accounts may be set up for those needing access to the
     CBP-CC data base if the proposed work is included in the
     CBP Restoration and Protection Plan.  Accounts must be
     approved by the CBP Data Management Subcommittee, which
     meets monthly.
PU
SOURCE PUBLICATIONS AND RELATED DOCUMENTATION
KR  | RELATED CBP-CC DATA SETS  (Assigned by CBP-CC)
                               E-8

-------
DT
ACCESSION DATE AND DATES OF DATA SET UPDATES
(Assigned by CBP-CC)

                     Year    Month     Day

Accession Date:

Data Set Updates:
CC
CATEGORY CODES, RECORD TYPES, CORPORATE CODES
(Assigned by CBP-CC)

Category Codes:

Record Type:

Corporate Codes:
                               E-9

-------
A.   GLOSSARY OF DATA DOCUMENTATION FIELDS

1.   Data Set Name  (DS)

Enter the  commonly-used data set  name  or other terms  that best
describe the collection of data.  Keep it brief.

2.   Project Title  

Include the name  of the project or study  through  which the data
were collected.

3.   Principal Investigator  (PI)

The name(s) of the individual(s) responsible for the data collec-
tion  and/or project  should  be  entered.   Do  NOT add  the Pi's
affiliation or address.   (See next field.)

4.   Collecting or Processing Organization (PO)

Enter the name, address, and telephone number of the organization
responsible for data collection and analysis.  You may include more
than one organization if several were  responsible.  Please explain
their specific duties  in  the project  in the Abstract (AB)  field.
Include the name of a contact in the organization if the principal
investigator is not the primary contact.

5.   Program Sponsor, Contract, Project Name  (PR)

Enter, the  name,  address,  and telephone  number of  the sponsoring
organization and  the project officer or chief  contact.    Please
include the grant, contract,  or cooperative  agreement  name and
number if different from the project title given in the Title  (TI)
field above.

&.   Project Cost and Duration  (PC)

Enter the total cost of the project and the study's duration.

7.   Abstract  (AB>

This field should include typical abstract information such  as the
purpose of  the data collection,  and the hypotheses,  results, and
conclusions, if available.  The field also is designed to capture
all. other documentation that cannot be placed in other fields.  For
example:
                               E-10

-------
     a.   Key equations used to generate reported values;

     b.   Assumptions used in the computations;

     c.   Assumptions that data base users must make when working
          with the data; and

     d.   Notes on the  data  set that do not belong in any other
          field.

8.   Data Collection Description (DC)

Include the type of observing station (buoy, pier, land, boat, or
ship}.    If boat or  ship,  include the  vessel  name.   Choose the
medium  from  which  data  were  collected,  i.e.,  water  column,
sediment, benthos, etc.  Include the number of stations or sites
in the data set and the number of observations.

9.   Period of Record (PE)

Place the  date  (year/month/day)  and hour  (if  applicable)  of the
first and last observation.

10.  Length of Record (LR)

This field should; be  used  to  describe  gaps  in  the data.   If
significant,  please  specify when   measurements   were  added or
dropped5.

11.  Geographic Place Names  (GE)

This field should ALWAYS  contain at  least the  following place
names:  North Atlantic, Coast, Mid-Atlantic Bight,  Chesapeake  Bay,
USA.  Add specific tributary names if the mainstem Chesapeake was
not the only part of the study.   Also,  add the state (s) in which
data were collected.

12.  Geographic Codes (GC)

These will  be assigned by the  CBP  Computer Center staff.    They
include  the Eco-Region  codes,  United  States  Geographic Survey
(USGS).   codes,  Hydro logic  unit  codes,  and state  and county  FIPS
codes.

13.  Grid Locators (GL)

This; field should contain the latitude/longitude coordinates of the


                              E-ll

-------
study area:.  Two  sets  of coordinates  (one  line on the form)  must
be provided,  indicating the lower right and  upper left-hand corners
of a  rectangle if drawn around the  study area.   For  data  sets
containing bay-wide  stations,  the  following coordinates  can  be
used: N364500 W753000 / N394500 W773000.

14.  Sampling Schedule (SS)

This  field  applies  primarily  to  data collected with  regular
frequency.   It will not  be  applicable to all projects.   Please
enter the number of times  samples were collected and the collecting
frequency. Fill in the total number of stations.  Indicate whether
some stations were sampled more frequently than others and if so,
why.  Also,  enter when  sampling frequencies  changed during the
course of the  project and the revised sampling  schedules during
each period.

15.  Station ID> Description, and Grid Locators (ST)

This field is  one of the most important in  the  data description
file.  Include the station names, latitude/ longitude coordinates,
river kilometers  (measured from  the mouth),  if applicable, and a
brief description of the  station location.

If. there are* more  than 17 stations,  additional  copies  of this page
should be made and completed.

16.  Parameter Names and  Method Codes  (PA)

Every parameter, stored in the CBP SAS data set must be referenced
in  this  field,   including  the  date,  station ID,   and  station
latitude/longitude.    These  parameters   are  included  in  each
observation of a SAS data set,  since there are no header records.

In addition to the parameter name, include a brief label and unit
of measurement where  applicable.   Since there are sometimes many
ways  of  collecting  and  analyzing a  particular  parameter,  the
documentation,  form  contains  a Method  (ME)  field  for  method
descriptions.  The parameter table  in this  field contains a column
into  which  a  code may  be  inserted  to cross-reference  methods
described in the ME field's entries.  Alphabetic or numeric codes
beginning with A or  1 should be  entered  for each  method used.
Repeat parameter  descriptions when  more than one  method was used
so that users  can choose to  separate or combine data for related
methods.

17.  Method Code Descriptions (ME)


                              E-12

-------
As indicated in the PA field above,  the methods used to collect and
analyze samples for  individual  parameters are described in this
field.  In some cases,  information on methods is not available or
is very limited.   The purpose of this  field is to document as much
as is available on methods.

Enter the parameter name and method code,  as  shown in the PA field,
followed  by  the  common description  of the  method.    The method
summary  can  be as  long  or  as  short as  necessary to  document
handling of samples,  lab procedures, calculations, and a reference
for a published account of the method used.   Make sure to include
units  of  measurement and detection   limits.   If information on
precision  accuracy,  replicate  sampling,  a  split  sampling,  and
analysis  between  two  labs  is  available,   please  include  this
information.

18.  Descriptions  (DE)

This  field is designed  for  all terms,  species names,  chemical
names, codes,  and key  words  that are not used  elsewhere in this
document.  The NODC  taxonomic code should be used  for biological
data and the CAS codes (modified by NOAA)  for chemical data.  You
can call the CBP Computer Center if you need assistance in adding
codes.

19.  Quality Assurance/Quality Control (DD)

Any special quality  assurance and  quality control  (QA/QC) proce-
dures used during data collection,  analysis, and/or key-punching
should be placed in this field.

20.  Availability Address (CO)

This  field will always contain the CBP Computer Center address.
Other  contacts should  be in the PI,  PO,  or PR fields discussed
above.  The CBPCC will complete this  field.

21.  Availability Conditions (AV)

The CBP Computer Center staff will fill  out this field for every
documentation file.   Generally, availability of data depends  on the
request and the nature of the data.   These  conditions may change
periodically to reflect CBP Computer  Center policy.

2,2.  Source Publications and Related  Documentation (PU)
                               E-13

-------
If a final repprt is written on the study for which the data were
collected, it must be entered into  this field as a full literature
citation.  Any other publications that are related to the study or
to similar research efforts and which would be useful to users of
the data set also should be included in this field.

23.  Related CBP Data Sets (RR)

The CBP Computer Center staff will complete this field.

24.  Accession Date and Date of Data Set Updates (DT)

The CBP Computer Center staff will complete this field.

25.  Category Codes,. Record Types,  Corporate Codes  (CC)

The CBP Computer Center staff will complete this field.
                               E-14

-------
*                Example Data Documentation Form                 *
*             (James River Nutrient Flux Dome  Study)             *
DS*| DATA SET NAME

    I
    | DOMESUM.SSD
    I'

TI*| PROJECT TITLE

    I
    | JAMES RIVER NUTRIENT FLUX DOME STUDY
    I

PI*| PRINCIPAL INVESTIGATOR(S)

    I
    | DR. CARL CERCO
    I

PO*l COLLECTING; OR PROCESSING ORGANIZATION  (address,  telephone
    \ number, and contact, if different  from principal
    f investigator)

    I
    | VIRGINIA INSTITUTE OF MARINE SCIENCES
    | GLOUCESTER POINT, VIRGINIA 23062
    | (804) 642-7000
    I
    f KEVIN CURLING, FRANKLIN HALL  (DATA PROCESSING SPECIALIST)
    I

PR* | PROGRAM SPONSOR, CONTRACT, PROJECT, OR EXPERIMENT NAME
    I* (include project  officer,  address, and telephone number, if
    I applicable)

    | RICHMOND REGIONAL PLANNING DISTRICT COMMISSION
    | 2201 WEST BROAD STREET
    | RICHMOND, VIRGINIA 23200
    | ATTN: DONNA WATERMAN  (804) 358-3684

* These items- must be filled in.


                               E-15

-------
PC (  PROJECT COST AND DATES WHEN STUDY WAS CONDUCTED
w^w_wv_K_MMw»_w___ ••«•«•»*«**«*__««_«•••»«___ — _—•• — — _— _W_«B«VW«»__VM.M_,

   f  Cost:              Study Dates:  AUGUST 1983 - OCTOBER 1984
KB*
ABSTRACT  (Description of project, including purpose,
objectives, hypotheses, results, and conclusions)
     Fluxes between the sediments and overlying water of
     ammonium, nitrate, total phosphorus, ortho-phosphorus, and
     dissolved oxygen have been measured in the tidal James and
     Appomattox Rivers, VA.  A total of 68 nutrient flux
     measures and 18 control measures were collected in the
     summer months, 1983 and 1984.

     Ammonium is predominantly released from the sediments at a
     mean rate of 9.82 mg/sq.m./hr.  Nitrate is predominantly
     taken up by the sediments at a mean rate of 1.53 mg/s.q.m.
     /hr.  Total phosphorus is taken up by the sediments at a
     mean rate of 1.67 mg/sq.m./hr.  Ortho-phosphorus may be
     taken up or released.  Mean flux is an uptake of 0.75
     mg/sq.m./hr.  Dissolved oxygen  is  taken up at a mean rate
     of 44 mg/sq.m./hr.

     NOTE:  NEGATIVE FLUXES INDICATE SEDIMENT UPTAKE
            TOTAL FLUX IS COMBINED SEDIMENT FLUX AND WATER
              COLUMN TRANSFORMATION
    \        NET FLUX IS SEDIMENT FLUX AFTER CORRECTION FOR WATER
    |          COLUMN TRANSFORMATION

DC  f DATA COLLECTION DESCRIPTION  (see Data Submissions
    | Guidelines)

    | Observing station or vessel name:
    | Data collection type:
    J Number of stations or sites:  23 stations
    | Number of observations:  86 measurements

PE*t PERIOD OF RECORD
^ ^ ^ ^ mm BM •» wt.^ ^ ^ ^ ^ ^ ^ •• •• BM-^ «• ^ ^ •— ^ ^ ™ ^ ^ •• •• IM ^ ^ ^ ^ ^ ••^^^^••<_^^^ ^ ^^aiv^^^^^^w^^^^^^fl
                      YEAR       MONTH       DAY        HOUR

     Earliest Date:   1983    |   08      |   16      |

     Latest Date:     1984    I   10      I   11      I
                               E-16

-------
LR* |  LENGTH OF. RECORD (Include information about gaps in the
   |  record)

   |, AUGUST 1983 - OCTOBER 1983
   |  JULY   1984 - OCTOBER 1984
   I
   |  (LATE SUMMER ONLY)

GE*|  GEOGRAPHIC PLACE NAMES (See Data Submissions Guidelines)

   |  North Atlantic, Coast, Mid-Atlantic Bight, Chesapeake  Bay,
   |  James River, Chickahominy River, Appomattox River, Virginia,
   |  USA.
   I

GC |  GEOGRAPHIC CODES (Assigned by CBPCC)

   |   US51.  WR02.  ERO030, ER2320.
   I

GL*(  GRID LOCATORS

   |   LATITUDE       LONGITUDE     |  LATITUDE        LONGITUDE
   |   (North)         (West)       |   (North)          (West)
   |  Deg Min Sec    Deg Min Sec    | Deg Min Sec    Deg  Min  Sec
   r;	_	
   I                                I
   |;   N3-64500        W0761500     I   N372500        W0773000
   fc                               I

SS I  SAMPLING SCHEDULE


     SAMPLED      TIMES PER            AT          STATIONS

     FOR THE PERIOD FROM                 TO

     (Add more specific details below, if necessary.)

     Each measure lasted seven hours.
     1-2 measures per day; and 1-13 measures per station.
     Nutrient fluxes measured only  at Stations 3-4, 6-7,  10-14, 19,
       20, 21, and 2IB.
                               E-17

-------
ST*| STATION ID, DESCRIPTION,  AND GRID LOCATORS
I STATION LATITUDE
| ID DEG MIN SEC

1
l> 3
1
|> 4
i
I > 5
1
l> 6
I
\> 7
1
|> 8
1
r> 9
1
|>10
1
I>1I
F
|>12
1
r>i3i
i
t>14
1
I^IS
i;
r>ie
i
|>17
I
|;>18
1
|->I9J
[
1!
|>20
1
I
1
1



JAMES RIVER
37

37

37

37

37

37

37

37

37

37

37

37

37

37

37

37

37

30

29

27

26

26

24

24

22

21

19

19

19

22

19

17

14

12

00

00

30

30

30

00

30

30

30

00

30

00

00

30

30

30

00

LONGITUDE RIVER LOCATION
DEG MIN SEC KM. DESCRIPTION





SAMPLE STATIONS
77

77

77

77

77

77

77

77

77

77

77

77

77

77

77

77

76

25

25

25

26

24

23

22

18

15

17

15

14

09

05

59

55

42

30

30

30

00

00

00

00

30

30

00

00

00

00

30

30

00

00

APPOMATTOX RIVER SAMPLE
37




18




30




77




22




00




177

172

168

166

165

160

157

140

126

125

121

120

110

108

90

84

69

STATIONS
11.8




RICHMOND 1-95 CROSSING

BUOY 168, BELOW GOODE
CK
BUOY 166, BEL.QW
DEEPWATER TERMINAL
BUOY 165, AT FALLING
CK
BUOY 163, BELOW
FALLING CK
BUOY 157, BELOW
KINGSLAND CK
BUOY 155, BELOW
PROCTOR'S CK
BUOY 137, AT CURLES
NECK
BUOY 120, CONFLUENCE
WITH APPOMATTOX RIVER
CITY POINT

BUOY 107, BELOW
HOPEWELL STP
JORDAN POINT

BUOY 91, NEAR HERRING
CK
WINDMILL POINT

BUOY 74, NEAR BRANDON
POINT
CLAREMONT

SWANN'S PT, BELOW
CHICKAHOMINY RIVER

N. CHANNEL, AT END OF
CONDUIT ROAD



                               E-18

-------
|>2I 37
1
1
| >21B5 37
I
|>22 37
1
| >23 37
1
15 15 77 22 20


15 15 77 22 30

15 45 77 24 00

15 45 77 25 00

| CHICKAHOMINY RIVER SAMPLE
| >25 37
1
PA*| PARAMETER
1
| PARAMETER
| NAME
	
1
| >STATION
\
|>LOCATION
f
|>RTVKM
i
1
I^LATJDEG1
I
1
f>LAT HIM
1
|>LAT SEC
1
|>LNG DEG
1
|>LNG MIN
1
|>LNG SEC
1
|>YEAR
1
|>MONTH
t
f>DAY
t
|>DATE
f
1
20 30 76 53 00

15.5 N. CHANNEL, AT
CONVEYOR CROSSING &
BELOW STP
15.5 S. CHANNEL, AT
CONVEYOR CROSSING
17.5 N. CHANNEL, ABOVE STP

19.7 ABOVE ROUTE 301 BRIDGE

STATIONS
13.4 SHIPYARD LANDING

NAMES and METHOD CODES (see ME field below)


LABEL

SAMPLING STATION ID

COLLECTION
UNIT OF OR ANALYTICAL
MEASUREMENT METHOD CODES

CODE N/A

DESCRIPTION OF STATION N/A N/A

RIVER KILOMETER
LATITUDE (DEGREES)
LATITUDE (MINUTES)

LATITUDE (SECONDS)

LONGITUDE (DEGREES)

LONGITUDE (MINUTES)

LONGITUDE^ (SECONDS)

YEAR

MONTH

DAY

SAS DATE



KM N/A
DEGREES N/A
MINUTES N/A

SECONDS N/A

DEGREES N/A

MINUTES N/A

SECONDS N/A

N/A N/A

N/A N/A

N/A N/A

N/A N/A


E-19

-------
|>DEPTH
















HE



>S_DEPTH
>WTEMP
>NH4
>NO23
>PO4
>TP
>DISOXY
>NH4FLUXT
>NO23FLXT
>PO4FLUXT
>TPFLUXT
>DOEEDXT
>NS4FLUXN
>NO23FLXN
>EO4FLUXN
>TPFLUXN
,
>DOFLUXN
TOTAL WATER DEPTH
SAMPLING DEPTH
(TOP OF DOME)
WATER TEMPERATURE
AMMONIA
NTTRITE+NITRATE
ORTHOPHOSPHATE
TOTAL PHOSPHORUS
DISSOLVED OXYGEN
TOTAL NH4 FLUX RATE
TOTAL NO23 FLUX RATE
TOTAL PO4 FLUX RATE
TOTAL TP FLUX RATE
TOTAL DO FLUX RATE
NET NH4 FLUX RATE
NET NO23 FLUX RATE
NET P04 FLUX RATE
NET TP FLUX RATE
NET DO FLUX RATE
M
M
DEG. C
MG/L
MG/L
MG/L
MG/L
MG/L
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
MG/SQ.M/HR
METHOD CODE DESCRIPTIONS (associated with codes
parameter table; see Data Submissions Guidelines
complete properly.)
PARAMETER
NAME : WTEMP
METHOD NAME: YSI MODEL 5379 DO
METHOD CODE:
AND TEMPERATURE
N/A
N/A
101A
102A
103A
104A
105A
10 6A
200
200
200
200
200
200
200
200
200
200
in
to
101A
PROBE
METHOD SUMMARY:
E-20

-------
     UNITS; OF                        DETECTION
     MEASUREMENT:  DEGREES C         LIMIT:
     QUALITY ASSURANCE:
ME   METHOD CODE DESCRIPTIONS (associated with codes in
     parameter table; see Data Submissions Guidelines to
     complete properly.)

     PARAMETER NAME:   NH4            METHOD CODE:   102A

     METHOD NAME:  AUTOMATED-PHENATE DISSOLVED AMMONIA METHOD

     METHOD SUMMARY:
     Alkaline phenol and hypochlorite react with ammonia to form
     idophenol blue  which is intensified with sodium  nitro-     |
prusside and measured colorimetrically.

     US EPA.  1979.  Methods for chemical analysis of water and
     wastes, Method 350.1.
     Standard methods for the Examination  of Water and Wastewater,
     14th Edition, p. 616, Method 604.  (1975).

     UNITS OF                        DETECTION
     MEASUREMENT:  MG/L              LIMIT:

     QUALITY ASSURANCE:

     Precision:  standard deviation in the range of 0.01-0.4 MG N/L
                 is  (+ or -) 0.02 MG/L.
     Accuracy:   recovery of 0.2 MG N/L is 106%.
DE  : DESCRIPTORS (Biological taxonomic names and codes, chemical
     compounds' and CAS codes, general keywords not used
     elsewhere)
     Sediments, nutrients, sediment flux, sediment oxygen
     demand, estuarine, tidal, benthos, geochemistry.
DD*  QUALITY ASSURANCE/QUALITY CONTROL PROCEDURES USED BY
     COLLECTING ORGANIZATION AND CBP COMPUTER CENTER
                               E-21

-------
     COIiLECTING ORGANIZATION:

     All nutrient and oxygen analyses were run according to
     Standard Methods for the Examination of Water and Waste-
     water.  Sample storage and preservation according to
     'Required Containers, preservation techniques and holding
     times' Final Draft Amendment to  40  CFR Part  136.   US EPA.
     Region 3.  1981.

     CBP COMPUTER CENTER:

     Verification by principal investigator.
     AVAILABILITY ADDRESS   (Assigned by CBPCC)
     CBE Computer Center
     EPA Chesapeake Bay Program
     410 Severn Avenue, Suite 112
     Annapolis, Maryland 21403
     (301) 267-0061   (FTS) 691-6873
AV I AVAILABILITY CONDITIONS   (Assigned by CBPCC)
     Copies of summary information are available on request.
     Data can be requested from the CBP computer center by
     letter or telephone.  Requests which require more than two
     hours of staff time to complete must be approved by the EPA
     Chesapeake Bay Program Director.  Requests requiring less
     than two hours are completed typically in 6-8 weeks;
     requests requiring more staff time may take 2-6 months,
     depending upon the nature of the request.

     User accounts may be set up for those needing access to the
     CBPCC data base if the proposed work is included in the CBP
     Restoration and Protection Plan.  Accounts must be approved
     by the CBP Data Management Subcommittee, which meets
     monthly.
PU
SOURCE PUBLICATIONS AND RELATED DOCUMENTATION
      Cerco, Carl F.  March 1985.  Sediment-water column
      exchanges of nutrients and oxygen in the tidal James and


                               E-22

-------
   I   Appomattox Rivers.   Virginia Institute of Marine
   \:  Science,  School of Marine Science, College of William
   |   and Mary, Gloucester Point, Virginia.
RR |  RELATED CBPCC DATA SETS  (Assigned by CBPCC)

   I
   I  None
   I

DT |  ACCESSION DATE AND DATES OF DATA SET UPDATES
   I  (Assigned by CBPCC)

   f                       Year    Month    Day
   I                     	
   t  Accession Date:     1985     DEC      24
   I
   I  Data Set Updates:
   I
CC I  CATEGORY CODES, RECORD TYPES, CORPORATE CODES
   I  (Assigned by CBPCC)

   |  Category Codes:  CC-22.  CC-34.  CC-63.
   I
   I  Record Type:     RT-1. RT-3.
   r
   I  Corporate Codes: US-VIRGIINSTIMARINSCIEN.
   I
                               E-23

-------
  APPENDIX F:




DATA DICTIONARY

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY



TITLE:             MEAN LOW WATER, METERS  ABOVE


PARAMETER HAKE:    ABOVBMLW

DESCRIPTION:
KEYFIELD:          N

DATATYPE:          NUMERIC

UNITS:             METERS'

CATEGORIES:        LR

KBZATBD
PARAMETERS:

RANGE:



                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY



TITLE:             Acres  Applied
PARAMETER MAKE:    ACRBAPEL

DESCRIPTION:       The number of acre* to which the pesticide was
                   applied'.
KEYFTELD:          It

DATATYPE::          RDM 4

UNITS:             acres

CATEGORIES:        TOX

RELATED
RANGE:

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   SAMPLE ACTIVITY
PARAMETER NAME:    ACTTV_MXi

DESCRIPTION:       C14  activity in •ample
KKiiPIKT.n:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RAWS:
N

NUMERIC

uCi/ral

Ir
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    SILVER, TOTAL
PARAMETER NAME:     AG

DESCRIPTION:
KEYFIZLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC:

UG/G

LR, TOXIC, SED

AG_D


Minimum -
                                   0.0
                                   1.0

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   AIR BLADDER
PARAMETER HAME:    AIRBLD_B

DESCRIPTION:       Presence or absence  of an air bladder.
KEYFIELD:.

DATATYPE1:

OMITS:


CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR
                   0 - absence
                   1 - presence
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION;:
ALKALINITY, TOTAL as CaCOS
ALK
KEYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
RANGE:
N
NUMERIC
MG/L
WQ.BZST
ALK_M
Minimum -
Maximum —





0.0
300.0

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   AROMATIC RETENTION INDEX
                   ARI
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   N

                   NUMERIC

                   N/A

                   TOXIC, BIST, WO
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    ARSENIC
                    ARSENIC
KBYFXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   N

                   NUMERIC

                   MICROGRAMS/LITER

                   TOX,HIST

                   AS_A, AS_C, AS_D, AS_M, AS_N; AS_O , AS_P , AS_S, AS_SK
                                  -0.5
                                   3.3
                    Maximum •

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE I


PARAMETER HAKE:

DESCRIPTION:
AIR TEMPERATURE


ATEMP

Dry or Wet Bulb  -  see ATEMP_M
KBYPIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

DEGREES CELCIUS

WQ,HIST

ATEMP M
                   Minimum -
                   Maximum; ••
                0.3
               40:. 6
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE;:


PARAMETER NAME:

DESCRIPTION:
Author(a)  -  Line 1


AUTHOR1

The author(s)  of the reference document.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR  75, mixed' c»»e



TOX

AUTHORS

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY



TITLE:             Authors (s)  - Id.no 2


PARAMETER HAMS:    AOTHOR2

DESCRIETZON:       Continuation line for authors.
KEYFIELD:          N

DATATYPE:          CHAR 75, mixed case

UNITS:

CATEGORIES:        TOX

RELATED            A0THOR1
PARAMETERS:

RANGE:



                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY



TITLE:,             BASIN NAME
PARAMETER RAKE:    BASIN

DESCRIPTION:       The' name of the major river basin in which the
                   observation is located.   The CBP-CC staff can
                   assign this value using GIS when LATDD/LONGDD are
                   provided.
KETFIELD:          N

DATATYPE:          CHARACTER,  LENGTH 15

UNITS:             N/A

CATEGORIES:        WQ,HIST,TOXIC,LR

RELATED.
PARAMETERS:

RANGE:             'CHESAPEAKE_BAY '
                   'EASTERN SHORE  '
                   ' ELIZABETH      '
                   'JAMES          '
                   'PATUXENT       '
                   'POTOMAC        '
                   'RAPPARANNOCK   '
                   ' SUSQUEHANNA    '
                   'WEST_CHESAFEAKE'
                   'YORK           '

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
 TITLE:
                    Bay Species Flag
PARAMETER HAKE:

DESCRIPTION:
BAYSPBC

Flag indicating if the  species  is found in the
Chesapeake Bay.
KEYFIBXiDt

.DATATYPE:

UNITS:

CATEGORIES:


RELATED
PARAMETERS:

RANGE:
N

CHAR 1




TOX
                    T » yes
                    M - no
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
 TITHE:.
                    FT7E DAY BIOLOGICAL OXYGEN  DEMAND
 PARAMETER NAME:    BOD

 DESCRIPTION:
 KE If FIELD:


 DATATYPE::

 UNITS:

 CATEGORIES:

 RELATED,
 PARAMETERS:

 RANGE:
B

NUMERIC

HS/L

WQ,HXST

BOD_D,BOD_M



Miniinoxn «
                0.0
              652.0

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY



TITLE:             BOTTOM SEDIMENT CHARACTERIZATION,  PRIMARY


PARAMETER HAME:    BOTTYPB1

DESCRIPTION:
KBYFTELD:          N

DATATYPE:          CHARACTER,  LENGTH 2

OBITS:             N/A

CATEGORIES:        LR

RELATED            BOTTYPE2
PARAMETERS:

RANGE:              'CL'  - clay
                    'GR'  — gravel
                    'MD'  - mud
                    'RK'  - rocks
                    '8V  - sand
                    'SB'  - shell
                    'SL'  - silt
                    'RB'  - rubble
                    'tjH?  - unknown



                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY



TITLE:              BOTTOM SEDIMENT CHARACTERIZATION, SECONDARY


PARAMETER NAME:     BOTTYPE2

DESCRIPTION:
KEYFIELD:           H

DATATYPE:           CHARACTER, LENGTH 2

UNITS:              N/A

CATEGORIES:         LR

RELATED            BOTTYPE1
PARAMETERS:

RANGE:              'CL' - clay
                    'GR' — gravel
                    'MD' - nrad
                    'RK' - rocks
                    'SN' - sand:
                    'SH' - shell
                    'SL' - silt
                    'RB.' - rubble
                    'ON'' — unknown

-------
TITLE:
RANGE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   BOTTOM CONDUCTIVITY
PARAMETER HAKE:    B_COND

DESCRIPTION:
KBYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
UMHOS
LR
B_COND_M
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   BOTTOM DISSOLVED- OXYGEN
B DO
KBYFXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L



B DO M

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
BOTTOM pB
B PB
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Standard Units

LR

B PH M
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    BOTTOM. SALINITY
 : SAL
KEYFIELD:

DATATYPE:

BHZTS:

CATEGORIES:

RELATED
PARAMETERS;

RANGE:
N

NUMERIC

Parts  Per Thousand- (FPT)

LR

B  SAL M

-------
TITLE:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:,
                     CHESAPEAKE BAY: PROGRAM DATA DICTIONARY
                   BOTTOM TEMPERATURE
PARAMETER NAME:    B_TEMP

DESCRIPTION:
N

HOMERIC

D«gr««s olcius

LR

B TEMP M
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION-.
                   CARBONATE  CONTENT
CARBONAT
DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   N

                   NUMERIC
LR.

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Peccant Dry Weight, Carbon Content
CARBON_P

The percentage of  carbon  In the  sample,  dry
weight.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

BELATED
PARAMETERS:

RANGE:
N

HUM 4

decimal percent

TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CARBON CONTENT (CHN ANALYZER)
PARAMETER NAME:

DESCRIPTION:
                    CARE CHN
KEYFIELD:

DATATYPE:

UNITS!

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC
LR
CARB ION, GARB WET

-------
TITLE:
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
                   CARBON CONTENT (IGNITION)
PARAMETER NAME:    CARB_IGN

DESCRIPTION:
KETPIEIiD:

DATATYPE:

UHXTS:

CATEGORIES:

RELATED
PARAMETERS:

RAHCE:
N

NOMERIC

%

LR

CARS CHN, CARB WET
                      CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE;


PARAMETER' NAME:

DESCRIPTION:
CARBON CONTENT  (WET OXIDATION)
CARB WET
KETFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC
LR
CARB IGN, CARB CHN

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Chemical Abstract  Service  (CAS) Number  - VALUE
PARAMETER BAKE:

DESCRIPTION:
KEYFIELB:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CASVAFK

The CAB comber as identified in the Merck Index or
U.S. EPA documents pertaining to toxic substances
and pesticides. CBP-CC staff may assign a dummy
CAS number, with the prefix "CAS", when a real one
is not available.  VALUE Table foreign key.
CHAR 9, Right, justified/leading zero's



TOX

CAS_PK


Current values available by request from CBP-CC.
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Chemical: Abstract Service (CAS)  Number - CHEMICAL
PARAMETER NAME:

DESCRIPTION:
KBYFIELD:

DATATYPE:

UHITS-t

CATEGORIES:

RELATED
PARAMETERS:

RAHGE:
CAS_PK

The CAS number, as  identified in the Merck  Index or
U.S.. EPA documents pertaining to toxic  substances
and- pesticides. CBP-CC staff may assign a  dummy
CAS number, with the prefix "CAS", when a  real  one
ia not available.  CHEMICAL Table primary  key.
CHAR 9, Right  justified/leading zero's



TOX:

CASVAFK
Current'values  available by  request  from CBP-CC.
See Table 2  for examples.

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIOHARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
                   CADMIUM
                   CD
KEYFXBLD:

DATATYPE:

UHITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   H,

                   HOMERIC

                   WS/L

                   TOXIC,HIST

                   CD_A, CD_C,CD_D, CD_M, CD_N, CD_O, CD_P, CD_S, CD_SK
                   Minimum —     -0.01
                   Maximum -   3200.00
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
PARAMETER HAKE:

DESCRIPTION:
                    CORE DEPTH


                    CDEPTH

                    Total depth of sediment core sample
KEYFIELD:

DATATYPE:

UNITS.:

CATEGORIES:

RELATEDr
PARAMETERS;
                    N

                    NUMERIC

                    CM

                    SEDIMENT,  TOXIC

                    CS DEPTH (core slice depth)

-------
                      CHESAPEAKE BAY PROGRAM. DATA DICTIONARY
TITLE:
                    BOMBER IH SAMPLE, NORMALIZED
PARAMETER HAKE:

DBSCRIPTTOH:
CHT_LM2

Normalized count per cquare meter of
given length.
KBYFTELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
R

NUMERIC

N/A

LR

CNT,CNT_DE,CNT FE, CNT_IM, CNT L,CNT_TOT,CNT_VOL
CUT AL,CNT MA,CNT  PROF,CNT SP, CNT SUB
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLBt
                    NUMBER IN SAMPLE, MALES
PARAMETER HAKE:

DESCRIPTION:
                    CUT MA
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

N/A,

LR

CNT, CNTJDE, CNT_FE,.CNT_IM, CNT L, CNT_TOT, CNT_VOL
CNT_LM2 , CNT_AL, CNT_PROF, CNT_s"p , CNT_SUB

-------
                              CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN  SAMPLE,  PROFILE
PARAMETER HAMB:

DESCRIPTION:
                   CNT PROP
DATATYPB:

ONIIS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

S/A

LR

CNT,CNT DE,CKT_FE,CNT IM,CNT_L,CNT TOT,CNT_VOL
CNT_LM27CNT_MA, CNT_AL7cNT_SP , CNT_SUB
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN SAMPLE,, SPECIES
PARAMETER NAME:

DESCRIPTION:
CNT_SP

Nunfoer of different ipecies in sampl*.
KEYFIELD:

DATATYPE:

UNITS':

CATEGORIES:

SSLATBD
5EHAMETERS:

RANGE:
HOMERIC

K/A

LR

CNT, CNT._DE, CNT_FE, CNT IM, CNT_L, CNT_TOT, CNT_VOL
CNT LM2,CNT  MA, CNT PROF,CNT AL, CNT SUB

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NUMBER IN SAMPLE, SUB SAMPLE
PARAMETER NAME:

DESCRIPTION:
                    CNT SOB
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

HOMERIC

N/A

LR

CNT,CNT_DE,CNT_FE,CNT IM, CNT_L,CNT_TOT,CNT VOL
CNT LM2,CNT MA,CNT PROF,CNT SP,CNT AL     ~
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NUMBER IN SAMPLE,  TOTAL
PARAMETER NAME:

DESCRIPTION:
                    CNT TOT
KEYFIELD:

DATATYPE:

OHITS:

CATEGORIES:

RELATED
PARAMETERS-:

RANGE:
N

NUMERIC

N/A

LR

CNT,CNT_pB,CNT_FE/CNT IM, CNT L, CNT_AL, CNT_VOL
CHT_LM2 , CNT_MA, CNT_PROF , CNT_SP, CNT_SUB

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE1:
                   SPECIES VOLUME
PARAMETER NAME:

DESCRIPTION:
CNT_VOL

Volume of a particular  >p*ciaa (asp.
jellyfish, Ctcnophore)
KBYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
N/A
LR
CNT, CNT
CNT LM2"
RANGE:
                   CNT, CNT_DE, CNT_FE, CNT_IM, CNT_L, CNT_TOT, CNT_AL
                   CNT_LM2 , CNT_MA, CNT_PROF, CNT_SP , CNT_SUB
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   CHEMICAL OXYGEN DEMAND
PARAMETER NAME:

DESCRIPTION:
                   COD
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

COD D,COD M

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   COLLECTION  TYPE
PARAMETER HAKE:

DESCRIPTION:
COLTYPB

Composite sample or discrete measurement.
Sample collection method code
KEYFZELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHARACTER, LENGTH 1

N/A

wo
                   'C' -  composite
                   'D' -  discrete
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   Species Common Name
PARAMETER NAME:

DESCRIPTION:
COMMON

The CBP-CC common name  of  the  species.
KEYFIELD:

DATATYPE:

ONUS:

CATBGOKEBS:

RELATED
PARAMETERS:

RANGE:
CHAR 40, UPPERCASE
TOX
                   Current value* available by request from CBP-CC.

-------
                              CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   CONCENTRATION
FATOMETER RAKE:    CONG

DESCRIPTION:
0ATATYPE:

UNITS:

CiTSBORIBSt

RELATED
PARAMETERS:

RANGE:
N

HOMERIC

H/A

BED

CONC_D, CONC_M, CONC_N, CONC_S
                   Minimum -
                   Maximum »
                0.0
              960.0
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   CONDUCTIVITY,  SPECIFIC
FARAKSTER NAME:    COKD

DBBCRlPTIONc       The- specific conductivity of the water sample.
DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RAW3E:
N

NUMERIC

MICROMHOS/CM

WQ,HIST, TOXIC

     H
                    fElaimum -      0.0
                    Maximum -  94000.0

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CONVERSION FACTOR
PARAMETER NAME:

DESCRIPTION:
COHVFACT

Number uaed to convert a number  in  a
•arapl* to a normalized count.
KEYJFIBLD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
N/A
LR

RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CORE SAMPLE VOLUME
PARAMETER NAME:

DESCRIPTION:
                    CORE VOL
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

ML

SED

-------
                     CHESAPEAKE. BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
County Name


COUNTYNM

The name of the County or Incorporated City.
KEYFIELD:

DATATYPE t

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 17, UPPERCASE
TOX
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   CHROMIUM, TOTAL
PARAMETER HAMS:    CR

DESCRIPTION
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H

NUMERIC

UG/L

WQ, HIST, TOXIC, SED, LR

CR_A, CR_C, CR_D,,CR_M, CR_N, CR_O
CR_P, CR_S, CR_SK
                                  —0'. 5
                   Maximum -  17000'. 0

-------
                     CHESAPEAKE  BAT PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
Crop Name
CROPNAME

Identifies the crop to which the pesticide was
applied.
KEYFIELD:

DATATYPE:

OMITS;::

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 20




TOX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   CRUISE  IDENTIFIER
PARAMETER SAME:

DESCRIPTION
CRUISE

Cruise identification  is usefule  for grouping  data
collected- over  a  range of  sampling  dates, but
which are. coaidered data for a  specific  sampling
period.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

ALPHANUMERIC, LENGTH 6  ???

N/A.

WQ.





SEE TABLE 5

-------
                     CHESAPEAKE1 BAT PROGRAM DATA DICTIONARY
TZZIB:
                   DEPTH OF CORE  SLICE
PARAMETER NAME:

DESCRIPTION:
CS_DEPTH

Depth in cor* from which lampl* was
takan for analysis.
KEYFIELD:

DATATYPE:

ONIT3:

CATEGORIES:

RELATED
PARAMETERS;:

RKR6B:
Y

NUMERIC

CM

SEDIMENT,TOXIC

CDBPTH
                   Minimum »
                   Maximum m
                0.0
             1389.8
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLB1:
                   COPPER,  TOTAL
PARAMETER NAME:    CU

DESCRIPTION*
KEYFIELDt

DATATYPE:

OBITS:

CATEGORIES:,

RELATED
PARAMETERS:

RAHOE:
N

NUMERIC

OG/L

WQ, HISr, TOXIC, SED, LR

CO_A, CO_C, CU_D , CU_M, CU_N, CU_O, CU_P,
CU_S, CO_SK

Minimum -     -0.5
Maximum -  37.790.0

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   CUMULATIVE PERCENT BT HEIGHT
PARAMETER NAME:    CUMPHIxx

DESCRIPTION:       From -2.00 phi to  14.0 phi.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC
                   XX - 2 through  14
                   Minimum -  0
                   Maximum -  100
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE':
                   Clean Hater Act,  Section  304L Flag
PARAMETER NAME:

DESCRIPTION:
CHA304L

Flag indicating if the discharge facility has been
listed by the state under the requirements of
section 304L of the Clean Water Act.
KBYFIEXiD:

DATATYPE;.

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 1




TOX
                   Y - yes
                   N - no

-------
TITLE:
XEYFIELD:.

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   CARBON PRODUCTION PER DAY
PARAMETER NAHB:    C_PRO_D

DESCRIPTION:
N

NUMERIC

mgc per liter per day

LR

C PRO B
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TXTLE:


PARAMETER NAME:

DESCRIPTION:
                   CARBON PRODUCTION PER HOUR
C PRO H
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

mgC per liter per  hour

LR

C PRO' D

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   CHBSSEE Dataset Name
PARAMETER SAME:

DESCRIPTION
DATASET

The CHESSES name given to the original dataset.
This can be used to retrieve summary documentation
from the CHESSEE system.
KEYFTELD:

DATATYPE:

UHlTSs

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H

CHAR 8




TOX
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   DATE OF  SAMPLE  COLLECTION
PARAMETER HAKE :

DESCRIPTXOS:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED'
PARAMETERS:

RANGE:
DATE

SAS date-  In SAS reckoning, the numeric value
in DATE': corresponds to the number of days, plus
or minus, from January 1, 1960.
The date on which the ambient sample was taken or
the release/loading/application took place.
HOMERIC, SAS DATE FORMAT

M/A

WQ^BXST,BED,LR, TOXIC
                   Some Chesapeake Bay Program period-of-record
                   data sets'begin in.. 1900.   The Monitoring
                   Program is recent and ongoing.

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
                   DENSITY PER 100 LITERS
PARAMETER NAME:    DEN_1001

DESCRIPTION:       Number per 100 liters.
KEYFXBLD:

DATATYPE;

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

DEN BM3,DEN L,DEN ML,DEN M2,DEN  M3
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
DENSITY PER HUNDRED CUBIC  METERS


DEN_HM3

Number per hundred cubic meters.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED:
PARAMETERS:

RANGE:
HOMERIC

N/A

LR

DEN 1001,DEN L,DBN ML,DEN M2,DEN M3

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
DENSITY PER LITER


DEN_L

Number per liter.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

DEN_HM3 , DEN_10 01., DEN_ML, DEN_M2, DEN_M3
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    DENSITY* PER SQUARE METER
PARAMETER NAME:     DEN_M2

DESCRIPTION:        Number per square meter.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

DEN_HM3 , DEN_L , DENJML, DEN_1001, DEN_M3

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
PARAMETER HAME:

DESCRIPTION:
DENSITY. PER CUBIC METER


DEN_M3

Number per cubic meter.
KEYFIBLD:

DATATYPE:

UNITS:;

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

DEN_HM3,DEN_L,DEN_ML,DEN_M2,DEN_1001
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER BAKE:

DESCRIPTION:
DENSITY PER MILLILITER


DEN_ML

Number: per milliliter.
KEYFXBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

N/A

LR:

DEW_HM3 , DBN_L, DEN_1001, DEN_M2 , DENJM3

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE-.
                   DETECTOR CODE
PARAMETER BAKE:

DESCRIPTION:
DETECTOR

Detector used for gamma analysis.
KEYFIBLD:

DATATYPE:

OBITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

S/A

SED
                    '!'  - G«(Li)  detector (15% efficiency)
                    '2'  - Ge(Li)  detector (13% efficiency)
                    '3'  - Ge(Li)  detector (16% efficiency)
                    '4'  - Intrinsic detector (25% efficiency)
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   DETECTION LEVEL
PARAMETER NAME:

DESCRIPTION:
                   DETECT L
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:             Detection.Limit
PARAMETER NAME:    DETLIM

DESCRIPTION:       The concentration level considered to be  the limit
                   of detection for this sample, possibly  clarified
                   by the values in DET_TYPE, INSTRMT,  and METHOD.
KETF3ELD:          N

DATATYPE:          NTJM 4

UNITS:             See M_UNITS

CATEGORIES:        TOX

RELATED
PARAMETERS:
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:             Detection Limit Type
PARAMETER NAME:    DETJTYPE

DESCRIPTION:       Code which identifies which  form of detection
                   limit calculation was used while performing the
                   analysis for this sample.
KEYFIELD:          H

DATATYPE:          CHAR 1

UNITSv

CATEGORIES:        TOX

RELATED
PARAMETERS:

RANGE:             I — Instrument  Detection Limit (IDL)
                   M -- Method Detection Limit (MDL)
                   S. -  Sample Quantitation Limit (SQL)
                   O -  Limit  of Quantitation (LOQ)
                   U •  Undocumented Detection Limit (DDL)

-------
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    NITROGEN, DISSOLVED INORGANIC
PARAMETER NAME:     DIM

DESCRIPTION:
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ

DIN_A, DIN_D, DIN_M, DIN_N, DIN_O, DIN_P, DIN_S
                    Minimum, -
                    Maximum -
                0..3
                4.6
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    PHOSPHORUS, DISSOLVED INORGANIC
PARAMETER NAME:     DIP

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

BELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ

DIP_A, DIP_D, DIP_M, DIP_N, DIP_O, DIP_P, DIP_S


Minimum -   0.0
Maximum -  141.0

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLBi
                   DISTANCE OFF  SHORE
PARAMETER KBMB:

DESCRIPTION:
                   DISOFFS
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   N

                   HOMERIC

                   METERS

                   LR
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   DISSOLVED OXYGEN,  TOTAL
                   DISOXY
KEYFIELD:

DATATYPE:

OBITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   N

                   NUMERIC

                   KG/L

                   WQ, HIST

                   DISOXY M
                                   0.0
                                  27.8

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TXTLK:
Discharge Type
PARAMETER HAKE:

DESCRIPTION:
DIST7PE

Coda which identifies  the  discharge facility type.
KEYFIELD:

DATATYPE:

DHITS:

CATEGORIES:


RELATED
PARAMETERS!

RANGE:
N

CHAR 3




TOX
                    IND - industrial
                    MUN - municipal
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CARBON,  DISSOLVED ORGANIC  (FILTERED)
PARAMETER HAKE:

DESCRIPTIOH:
                    DOC
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
HOMERIC

KG/L

WQ,HIST

DOC_», DOC_C, DOC_D, DOC_M, DOC_N, DOC_O,
DOC_P , DOG_S , DOC_SK
Minimum- ••
Maximum v
 0.0
24.7

-------
                     CHESAPEAKE BAY: PROGRAM DATA DICTIONARY
TITLE:
                   DOCUMENT IDENTIFICATION NUMBER
PARAMETER SAME:    DOC_ID

aSSCRIFTICH:
KEYFIELD:
DATATYPE:
OHIT8:
CATEGORIES':
RELATED
PARAMETERS:
R
NUMERIC
H/K


RANGE:
                   Arbitrary,  ••quential  numbers.
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE r


PARAMETER NAME:

DESCRIPTION:
DISSOLVED OXYGEN, DARK.
DODEL_DK

Final dissolved oxygen minus initial
dissolved oxygen-  (dark)
KEXFIELDt

DATATYPE:
CATEGORIES:

RELATED
PARAMETERS:

RANGE:
B

NUMERIC

MG/L

LR

DODEL LT,DO DK, DO  LI

-------
                      CHESAPEAKE SAT PROGRAM DATA DICTIONARY
TITLE:
                    DISSOLVED OXYGEN, LIGHT
PARAMETER HAKE:

DESCRIPTION:
DODEL_LT

Final dissolved oxygen minus initial
dissolved oxygen (light)
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N


NUMERIC


MG/L


LR

DODEL DK,DO DK,DO LI
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NITROGEN,. DISSOLVED ORGANIC  (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    DON
KEYFIELD:

DATATYPE:

TOUTS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

MG/L

WQ, HIST.

DON_A, DON_C, DON_D, DON_M, DON_N, DON_O,
DON F,DON S,DON 8K
                    Minimum -
                    Maximum -
                0.0
                3.3

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   PHOSPHORUS,  DISSOLVED ORGANIC  (FILTERED)
PARAMETER NAME:    OOP

DESCRIPTION:
KEYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
R
NUMERIC
MO/L
WQ,BIST
DOP A,D(
DOP P,D<
RANGE:
                   DOP A, DOP  C,DOP D,DOP M, DOP N,DOP  O,
                   Minlinuin •
                   Maximum »
               0.0
               3.3
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:,


PARAMETER NAME:

DESCRIPTION:
DISSOLVED OXYGEN, DARK BOTTLE
DO DK
KEYFIELD:


DATATYPE:

UNITS:

CATEGORIES:


RELATED
PARAMETERS:

RANCH:
NUMERIC

MG/L.

LR

DODEL_DK, DODEL_LT, DO_LI

-------
TITLE:
                     CHESAPEAKE, BAY PROGRAM DATA DICTIONARY
DISSOLVED OXYGEN, GROSS PRODUCTIVITY
PARAMETER HAKE:    DO_GROPR

DESCRH-TTOH:
KEYPXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
HOMERIC

mgC per liter per* hour

LR

DO NETPR
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    DISSOLVED OXYGEN, LIGHT BOTTLE
PARAMETER NAME:    DO_LI

DESCRIPTION:
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

LR

DODEL_DK, DODEL_LT, DO_DK

-------
TITLE:
                     CHESAPEAKE BAT. PROGRAM DATA DICTIONARY
                   DISSOLVED OXYGEN,  NET PRODUCTIVITY
PARAMETER NAME:    DO_NETPR

DESCRIPTION:
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

mgC par liter per hour

LR

DO GROPR
TITLE:.
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    OXYGEN PRODUCTION CHANGE - DAY
PARAMETER NAME:     DO_PRO_D

DESCRIPTION:        Oxygen; production- rate of change per  day.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE,:
NUMERIC

N/A

LR

DO_JPRO_H, DO_RES_D, DO_RES_H

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER KAME:

DESCRIPTION:
OXYGEN PRODUCTION CHANGE  - HOUR


DO_PRO_H

Oxygen production rate of change p«r hour.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A-

LR

DO PRO D,DO RES D,DO RES H
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLB:


PARAMETER NAME:

DESCRIPTION:
OXYGEN RESPIRATION  CHANGE  -  DAY


DO_RES_D

Oxygen respiration  rate  of change per day.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED.
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

DO PRO H, DO PRO  D,DO RES  H

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
OXYQBN RESPIRATION CHANCE - HOUR


DO_RES_H

Oxygen respiration rate of change  per  hour.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
HOMERIC

N/A

LR'

DO PRO H, DO RES D,DO FRO D
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   DILUTION. VOLUME
PARAMETER MAMB:    DVOL_L

DESCRIPTION
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

LITERS

LR

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TETLB:
                   EETKUJHAI. CODE
PARAMETER NAME:

DESCRIPTION:
EPXFAUNA

Classification of organisms «a associated with the
•urfac«  («pifauna!)  or benthic  (infaunal)  for use
in species diversity calculations.
(ODO Benthic Ecology Laboratory  system)
KEYFIELD:
DATATYPE:
OBITS.1:
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
N/A
LR

RANOT:
                    0  - not epifaunal
                    1  - often epifaunal
                    2  - epifaunal
                      CHESAPEAKE BAY. PROGRAM DATA DICTIONARY
TITXE:
                    Eastern Shore Basin
PARAMETER BAKE:

DESCRIPTION:
ESBORB

The percent of. the county in the Eastern Shore
Basin.
KEYFIELD:

DATATYPE:

UNITS:

CATEC3ORIES:

RELATED
PARAMETERS:

RANGE:
N

HUM 4

decimal percent

TOX

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   EUPHOTIC DEPTH
PARAMETER SAME:

DESCRIPTION:
EUDEPTH

Depth of 1% light transmission.
KEYFIEXiD:


DATATYPE:


TOITSi-

CATBQORIES:


RELATED
PARAMETERS:


RAXQB:
N

NUMERIC


METERS

LR
                      CHESAPEAKE: BAY PROGRAM DATA DICTIONARY
TITLE:
                    CHLOROPHYLL EXTRACT VOLUME
PARAMETER NAME:

DESCRIPTION:
EXVOL ML

Volunw. off sample used in chlorophyll
analysis.
KBYFXEIiD:


DATATYPE:


UNITS:


CATEGORIES:


RENTED
PAFHJBTBRS-J

RANGE:
N


NUMERIC


ML

WQ,HZST,LR

-------
                     CHESAPEAKE BAT PROGRAM  DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Facility Hum


FACNAKB

The nan* of the discharge facility.
KEYFXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

BARGE:
N

CHAR 40



TOX
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE!


PARAMETER NAME:

DESCRIPTION:
CBP Facility Kay - FACILITY Table
FAC_PX

Th« primary key to the FACILITY Table.  This
number la the TRI ID  for facilities listed in the
TRI, others are assigned by CBP-CC.
KBYFISLO:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
T

CHAR 15




TOX

FACPSFK

-------
                     CHESAPEAKE;BAY PROGRAM DATA DICTIONARY
TITLE:
Above/Below Fall Line Indicator
PARAMETER NAME:

DESCRIPTION:
PALLINE

The relation of the observation's location  to  the
fall line.  The CBP-CC staff can assign  this value
using 8IS when LATDD/LONGDD are provided.
KBYFTELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERSt
CHAR 3, UPPERCASE
TOX
                   APL - above the fall line
                   BFL - Below the fall line
                     CHESAPEAKE BAT PROGRAM DATA  DICTIONARY
TITLE:
                   -OtIFORM, FECAL
PARAMETER- NAME:

DESCRIPTION:
                   FCOLI
KETFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RBLATEDV
PARAMETERS:

RANQE:
N

NUMERIC

Moat Probable Number

WQ

FCOLI: B, FCOLI. M

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
IRON, TOTAL
FE
EBYFXBLD>:

DATATYPE:

OMITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H-

NUMERIC

DG/L

WQ,HIST,SED

FE_A, FE_C, FE_D, FE_M, FE_H, FE_O, FE_P,
FE_S,FE_SK

Minimum -      0.0
Maximum - 69, 000..0
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    FIELD SAMPLING METHOD CODE
PARAMETER RAMS:

DESCRIPTION:
                    FIELD
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:.
ALPHANOMBRIC,  LENGTH 4

N/A

WQ

-------
                     CHESAPEAKE B&ET PROGRAM DATA DICTIONARY
TITLE:
State/County PIPS Code - FIPSNAME Table
PARAMETER NAME:

DESCRIPTION:
FIPS_PK

The combined atate and county FIPS Code.   This is
the FIPSNAMB Table primary key.
KBYRTEItB:
DATATYPE:
tJHITS:
CATEGORIES:
REIATED
PARAMETERS:
Y
CHAR 5

TOX
FIP-SLOFK
RftBOB:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   PLOW
PARAMETER NAME:    FLOW*

DESCRIPTION:
XEYFIELD:

DATATYPE:
CATEGORIES:

RELATED
PARAMETERS:

HANOI:
H

NUMERIC
Miinlroum -     13.29
Maximum - 447999.94

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TTTLB:


PARAMETER HAKE:

DESCRIPTION:
                    INCLUSIVE GRAPHIC STANDARD DEVIATION  (FOLK METHOD)
FOLKISTD
KEYFIBLD:

DATATYPE:

UHITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

FOLKKURT, FOLKMEAN
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTIONr
KURTOSIS  (POLK METHOD)
FOLKKURT
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

FOLKISTD,FOLKMEAN

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
MEAN DIAMETER  (FOLK METHOD)
PARAMETER NAME:

DESCRIPTION:
                   FOLKMBAN
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H

NUMERIC

N/A

SED

FOLKKURT,FOLKISTD
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE."
                   SOLIDS, FIXED SUSPENDED
PARAMETER HAME:

DESCRIPTION:
                   FSS
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELAXED'
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ

FSS_AvESS_C, FSS_D,ESS M,FSS_N,FSS_O,
FSS_F,FSS_S,FSS_SK   ~

Minimum  -     20 ..0
Maximum  -  12920.0

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER BAKE:

DESCRIPTION:
                   FILTERED  VOLUME,  LITERS
F7OL L
KEYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
H
NUMERIC
LITERS
LR
FVOL_M3
RANGE:
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
FILTERED VOLUME,  CUBIC METERS
FVOL M3
KEYFIELD:

DATATYPE:

QUITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

LITERS

LR

FVOL L

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
KETFIELD:

DATATYPE:

OBITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                   CHEMICAL NAME
CHEMNAME

8th or 9th Collective Index Name  (depending
on reference source).  Many of the  chemical names
were obtained from the Toxic Substances  Control
Act (TSCA) list.
CHARACTER, LENGTH 30

N/A

TOXIC,HIST





Current value* available on request  from the CBP-CC.
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE."


PARAMETER NAME:

DESCRIPTION:
KETFIELD:

DATATYPE':

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
Chemical•Species Type/Physical  Fraction
CHEMSPEC

The form of the chemical undergoing analysis,
either on the basis of  chemical  species or on the
basis of physical fraction,  or both.   A CBP-CC
assigned code.
N

CHAR 8




TOX

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   MONOCHROMATIC ACTIVE CHLOROPHYLL A
PARAMETER BAME:

DESCRIPTION:
CHLA

Corrected for pheophytin  and turbidity.
KEYFIBLD:

DATATYPE:'

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

OG/L

WQ

CHLA_A, CHLA_C, CHLA_D, CHLA_M, CHLA_N
CHLA 0,CHLA P,CRLA S,CHLA  SK
                   Minimum -
                   Maximum -
                0.0
              866.1
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CHLOROPHYLL. A FLUX
PARAMETER' NAME:

DESCRIPTION:
CHLAFLUX

Calculated  flux of chlorophyll A to the
sediment  surface.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER DAY

SED

PHOSFLUX,POCFLUX,PONFLUX, SESFLUX, SPECFLUX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   MONOCHROMATIC TOTAL CHLOROPHYLL A
PARAMETER NAME:

DESCRIPTION:
CHLAH

Uncorr«ct«d for pheophytin.
KETFIBLD:

DATATYPE:

OHIT8:

CATEQQRIBS:

RELATED.
PARAMETERS:

RANGE:
NUMERIC

OG/L

WQ

CHLAM A,CHLAM_C,CHLAM_D,CHLAM_M,CHLAM_N
CHLAM~0,CHLAM P,CHLAM  S,CHLAM SK
                   Minimum -
                   Maximum »
               0.0
            7540.0
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   TRICHROMATIC CHLOROPHYLL A
PARAMETER! NAME:

DESCRIPTION:
CHL_A.

Corrected for  Turbidity
XEYFXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

OQ/L

BIST

CHL_A_A, CHL_A_C, CHL_A_D, CHL_A_M, CHL_A_N, CHL_A_O,
CHL_A_P,CHL~A_S,CHL_A~SK     ~     ~
                   Minimum -
                   Mvcimum ••
                0.0
              741.0

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                    TRICHROMATIC CHLOROPHYLL B
PARAMETER HAME:

DESCRIPTION
CHL_B

Corrected  for turbidity.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELAXED
PARAMETERS:

RANGE:
NUMERIC

00/L

WO

CHL_B_A,CHL_B_C,CHL_B_D,CHL_B_M,CHL B_N
CHL B O,CHL B  P,CHL B S,CHL B SK   ~
                    Minimum -
                    M&xintuzn ••
                0.0
               26.7
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    TRICHROMATIC CHLOROPHYLL C
PARAMETER- HAME:

DESCRIPTION:
                    Corrected for turbidity.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

UG/L

WQ

CHL_C_A, CHL_C_C,CHL_C_D, CHL_C_M, CHL_C_N
CHL C O, CHL C  P,CHL. C S,CHL~C SK   ~
Minimum- -
Maximum -
 0.0
29.8

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   FLUOROMETRIC CHLOROPHYLL A
PARAMETER KAHB:    CHL_F

DESCRIPTION:
KEYFXELD:

DATATYPE:

tJHITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
HOMERIC

OS/I.-

WQ

CHl_F_A, CHL_F_C, CHL_FJD, CHL_F_M, CHL_F_K
CHL_F_O,CHL_F_P,CHL F S,CHL_F_SK
                                   0.0
                                 210.0
                   Maximum -
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   City Harae
PARAMETER. NAME:

DESCRIPTION:
CITYNH

The city in which the  discharge facility is
located.
KEYFIBLD:

DATATYPE:

OMITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 25



TOX

-------
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   COCKTAIL VOLUME
PARAMETER NAME:     CKTL_VOL

DESCRIPTION:        C14  Production.
KKVV IHT.n-
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
H
NUMERIC
ML
LR

RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE*


PARAMETER HAKE:

DESCRIPTION:
CLAY


CLAY_MG

Clay dry weight
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SAMPLE

SED

CLAY P

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN SAMPLE
PARAMETER NAME:

DESCRIPTION:
                   CUT
KBYFIEIiD:,

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

H/A

tR, TOXIC

CNT_AL,CNT DE,CHT FE,CNT IM,CHT L, CNT TOT,CNT_VOL
CHT_LM2 , CNT_MA, CNT_PROF, CNT_SP, CNT_SUB
                   Minimum -
                   Maximum -
               1.0
               8.0
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   SPECIES,  CUMULATIVE NUMBER
PARAMETER NAME:

DESCRIPTION:
CNTCMSPx

Cumulative. numb«r  of species through
division X.
KSTPTELD:

DATATYPE:

QHITS:

CATEGORIES:

RELATED:
PARAMETERS:

RANGE:
H

NUMERIC

H/A

LR

CNTCUM X

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:             CLAY PERCENT


PARAMETER NAME:    CLAY_P

DESCRIPTION!:       Percent dry weight clay.
KEYFIELD:          N

DATATYPE:          NUMERIC

UNITS:             %

CATEGORIES:        SEDIMENT,  TOXIC

RELATED            CLAY_MG
PARAMETERS:

RANGE:             Minimum -       0.0
                   Maximum -      98. 8
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:              CLOUD COVER
PARAMETER BAKE;.     CLOUD

DESCRIPTION:        Describes the amount of cloud cover at
                    a particular sampling site.
KEYFIELD:           N

DATATYPE:           CHARACTER,  LENGTH 1

TOITS:              N/A

CATEGORIES:         WQ

RELATED             N/A
PARAMETERS:

RANGE:              '  '  - not recorded
                    '0'  - clear                      ( 0 to 10%)
                    '!'  - scattered to partly cloudy (10 to 50%)
                    '2'  - partly to broken           (50 to 90%)
                    '3'  - overcast                   (   GT 90%)
                    '4'  - foggy
                    '5'  - hazy
                    ' 6'  - clouds                     (no % given)

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   INDIVIDUALS, CUMULATIVE  NUMBER
PARAMETER NAME:

DESCRIPTION:
CNTCUMJC

Cumulative number of individuals
through division X.
KEYFTBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H

NUMERIC

H/A

LR

CNTCMSPx
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN SAMPLE ALIVE
PARAMETER NAME :

DESCRIPTION:
                   CNT: AL
KEYFTBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGB:
N

NUMERIC

*/A

LR
CNT, CNT DE,,CNT FE, CNT IM, CNT L,CNT_TOT, CNT_VOL
CNT_LM27CNT_MA7CNT_PROF, CNTJsP, CNT_SUB

-------
                      CHESAPEAKE BAT  PROGRAM DATA DICTIONARY
TITLE:
                    BOMBER IK SAMPLE  DEAD
PARAMETER NAME:

DESCRIPTION:
                    CNT BE
Win FIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

N/A

LR

CNT, CNT._AL, CNTJFE, CNT IM, CNT_L, CNT_TOT, CNT_VOL
CUT LM2,CNT  MA, CNT PROF, CNT SP,CNT SUB
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NUMBER IN SAMPLE FEMALES
PARAMETER NAME:

DESCRIPTION:
                    CNT FE
KEYFXELD:
DATATYPE:
ONITS:
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
N/A
LR
CNT, CNT
CNT LM2'
                    CNT, CNTJJE, CNT_AL, CNT IM, CNT_L, CNT_TOT, CNT_VOL
                    CNT_LM2 , CNT_MA, CNT_PROF, CNT_SP, CNT_SUB
RANGE:

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN SAMPLE  IMMATURE
PARAMETER HAKE:

DESCRISTIOBs
                   CRT IM
KEYFIELD:

DATATYPE:

UNITS;:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

B/A

LR

CNT,CNT DE,CNT FB,CNT AL,CNT_L, CNT_TOT,CNT_VOL
CNT LM27CNT MATcNT PROF,CNT SP,CNT SOB
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER IN SAMPLE,  RAW COUNT
PARAMETER MAME:

DBSCRIPTIOm:
CNT_L

Raw count per  aanple of a given length.
KBYFTBLDt

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

H/A

LR

CNT,CNT DE,CNT_FE,CNT_IM,CNT AL,CNT TOT,CNT_VOL
CNT LM27CNT  MA, CNT PROF,CNT ?P,CNT SUB

-------
                     CHESAPEAKE  BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAMB:

DESCRIPTION:
                   SAMPLING  GEAR CODE
GEAR

Code describing the gear used to collect
the •ample.
KBYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

HOMERIC

H/A

LR, TOXIC, HIST





SEE TABLE 8
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
GONAD WEIGHT


GONAD_G

Genad weight of individual.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
H

NUMERIC

GRAMS

LR

GONAD I

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:-             GONADAL, TODEX
PARAMETER HAKE:    GONAD_I

DESCRIPTION:       Mean population gonadal index for bivalves.  Used
                   to ensure non-spawning bivalves are collected for
                   lipophilic organic contaminant analysis.  (Batelle)
                   Index - (f organisms in each stage times numerical
                   rank of each stage) divided by total * in  sample.

KEYFIELD:          N

DATATYPE:          NUMERIC

TOUTS t             N/A

CATEGORIES:        LR

RELATED            GONADJS
PARAMETERS:

RANGE:             Stage 0 - Resting/spent/inactive/neuter/virgin
                   Stage 1 - Developing-no ripe gametes observed  (or)
                   Spawning-residual gametes/some cytolysis
                   Stage 2 - Developing-ripe garoetes-1/3 final size
                   Spawning-reduction with follicles
                   Stage 3 - Developing-equal halves ripe/developing
                   Spawning-half empty
                   Stage 4 - Developing-follicles mainly ripe gametes
                   Spawning-active emission has begun
                   Stage 5 - Ripe gonad-distended follicles


                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:             Median Grain Size


PARAMETER NAME:    GRAIN_MD

DESCRIPTION:       The median grain size of the sample.
HEYBTELD:          N

DATATYPE:          MUM' 4

UNITS:             millimeters

CATEGORIES:        TOX

RELATED            GRAIN_MN
PARAMETERS:

RAHGE:

-------
                      CHESAPEAKE- BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
                    GRAIN SIZE,  MEDIAN
GRAIN MD
KBYFXELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
RANGE:
N
NUMERIC
H/A
SED
GRAIN_MN
Minimum -
Maximum -





1.7
290.0
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
GRAIN. SIZE, MEAN



GRAIN_MK

Th« mean grain, size of the sample
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES;:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SEDIMENT, TOXIC


GRAIN MD
Minimum. -
Maximum -
                                   0.2
                                 205.0

-------
                     CHESAPEAKE BAT: PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
GRAVEL


GRAV_MG

Gravel dry weight.
KEYPTELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SAMPLE

SED

SRAV P
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   GRAVEL PERCENT
PARAMETER BUS:

DESCRIPTION:
GRAV_P

Gravel percent  dry weight.
mxy i KT
-------
TTTIiZ:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   NUMBER OF CLADOCBRANS
PARAMETER HAKE:    GUT_CLAD

DBSCRIPTIOB:       Hunter of cladocerana found in gut.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

GOT COPE, GUT MISC
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   NUMBER OP COPEPODS
PARAMETER NAME':     GUT_COPE

DESCRIPTION:        Numb«r of copepods found in gut.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

  T^_CLRD, GUT_MISC

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:-


PARAMETER NAME:

DESCRIPTION:
NUMBER OF MISCELLANEOUS  ITEMS


GUT_MISC

Number of miscellaneous  items found in gut.
KEYFTF.T.P:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC

N/A

LR

OUT COPE, GUT CLAD
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
MOISTURE


H2O_MG

Moisture weight.
XBYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SAMPLE

BED

H20 P

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
MOISTURE: PERCENT

H2O_P

P«rc«nt raoiatura.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

%

SEDIMENT, TOXIC

B2O MS
                   Minimum -
                   Maximum «
                0..0
               83.6
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    HARDNESS,  AS CaCO3
EARAKETER NAME:

DESCRIPTION:
                    RftRD
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST


11.0

Minimum  -     20.0
Maximum- - 5200.0

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   MERCURY, TOTAL
PARAMETER BUS:    BO

DBSCRXPTXOH:
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES.':

RELATED
PARAMETERS:

RANGE:
NUMERIC

UQ/L.

WQ, HIST, TOXIC, EED,LR

HQ_A, HG_C,HQ_D, HG_M, HG_N, HG_O, HG_P ,
HG_S,HG_SK

Minimum-     -0.001
Maxinmm -   1050.000
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Uses Hydrologic Unit Coda
BARAMETBR SAKE:

DBSCRIPTIOH:
HUC

The U.S. Geological  Survey's  Hydrologic Unit Code
(HUC) in which the observation is located.  The
CBP-CC staff can  assign  this  value using GIS when
LATDD/LONGDD are  provided.
XEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:.
N

CHAR 8

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Instrument used for measuring M_VALUE
PARAMETER NAME:

DESCRIPTION:
INSTRMT

Provides the data user with a general idea of the
type of chemical analysis performed for this
•ample.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 7




TOX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLES
                   ISOTOPE CODE
PARAMETER NAME:    ISOTP_CD

DESCRIPTION:       Isotope  cod* for C14 production.
KEYFIEU):

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

-------
                     CHESAPEAKE EAT PROGRAM DATA DICTIONARY
TITLE*
                   Jamea River Basin
PARAMETER BAKE:

DESCRIPTION:
JAMES

The parcant of the county In the
Basin.
KEYFIELD:

DATATYPE:

UNITS:.

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NOM 4

decimal percent

TOX.
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   LATITUDE
PARAMETER BOMB:

DESCRIPTION:
                   LAT
KEYFIELD:

DATATYPE:

ONITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
NUMERIC 6.4

Decimal Degrees

ALL

LONGITUDE
                   Minimum -
                   Maximum -
              36.0
              43.0

-------
TITLE:
                     CHESAPEAKE: BAT PROGRAM DATA DICTIONARY
Species Latin Mama
PARAMETER NAME:    LATIN

DESCRIPTION:       The CBP-CC latin name of the speciee
KBTFXBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 40, UPPERCASE
TOX
                   Current values available by request from CBP-CC.
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   SAMPLE LAYER
PARAMETER HAKE:

DESCRIPTION:
LATER

Code describing the water stratum being sampled.
KETFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHARACTER, LENGTH  2

H/A

WO
'S ' — surface-
'M ' - middle
'B ' - bottom
'SB' - sediment
'SW' - Bed/water
'AP'  • above pycnocline
'BP'  - below pycnocline
'AT'  - above thermocline
'BT'  " below thermocline
'AE'  - above euphotic zone
                   interface     'BE'  - below euphotic  zone
                   'MI' - microlayer

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
Length of Individual


LENGTH

The length of the individual for this sample
KBYPTBLDt

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERSt

RANGE:
Hi

HUM 4

centimeters

TOX,
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   LENGTH OF INDIVIDUAL - CM
PARAMETER NAME:    LEN_CM

DESCRIPTION:
KEYFIELD:

DATATYPE:

CHITS:

CATEGORIES':'

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

CM

LR

LEN_MM,LEN MAX,LEN_MEN,
LBN MENO/LEN MENM, LEN' MIN

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAME:

DESCRIPTION:
                    LENGTH OF INDIVIDUAL - MAXIMUM
LBNMAX
        length  of  individual  per sample.
KBYFIELD:
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
N

HOMERIC
MM
LR
LEN CM
LEN MB:


t. •
w
RANGE:
                    LEN_MBNO, LBN_MENM, LENJON
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE'S--


PARAMETER NAME:

DESCRIPTION:
LENGTH OF  INDIVIDUAL - MEAN


LEN_MEH

Mean length of individual per sample.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MM

LR
LEN_CM, LEN,_MAX, LEN_MM,
LEN_MENO> LEN_MENM, LENJKIN

-------
                     CHBSS2BRXE' BAY PROGRAM DATA DICTIONARY
TITUS:
                   LENGTH OF INDIVIDUAL  - METALS
PARAMETER NAME:

DESCRIPTION:
1BN_MENM

Mean length of individual used in
Bwtala analyaia.
KEYFIELD:
DATATYPE:
OMITS:,
CATEGORIES:
RELATED
PARAMETERS:
N
NUMERIC
MM
LR
LBNjCM,:
LEN MENI
RANGE:
                   LBNjCM, LEN_MAX, LBN_MBN, LEN_MM,
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   LENGTH OF INDIVIDUAL - ORGANIC
PARAMETER NAME:

DESCRIPTION:
LEN_MENO

Mean length of. individual used in
organic analysis.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NDMERIC

MM

LR

LBH!_CM,IiBN MAX,LEM_MBN,LEN_MM,
LEH; MENMVLEN MIN

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                    LENGTH OF INDIVIDUAL - MINIMUM
PARAMETER NAME:

DESCRIPTION:
LEN_MIN

Minimum length of individual per sample
KEYFIELD:
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N

NUMERIC
MM
LR
LBN CM
LBN ME!


, 3
HI
RANGE:
                    LBN CM,LEN MAX, LBN MEN,LEN MM,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    LENGTH OE INDIVIDUAL  - MM
PARAMETER NAME:

DESCRIPTION:
                    LEN MM
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MM

LR

LEN_CM,,LEN MAX,LEN MEN,
LEN MENO, LEN MBNM,LBN MTN

-------
                     CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:
                   LIFE STAGE
PARAMETER HAMB:

DESCRIPTION:
LIFE_STG

Life stage of individual.
Code for biological monitoring of fish
and zooplankton.
KBYFXBLD:

DATATYPE:

UNITS:.

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHARACTER, LENGTH 2

H/A

LR





SEE TABLE 9
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE!
                   LIGHT - 1ANGLBYS
PARAMETER MAKE:

DESCRIPTION:
                   LIGHT L
DATATYPE:.

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RAHSE:
N

NUMERIC

g/cl/em2

LR

LIGHT E,LIGHT_P,LIGHT_P,LIGHT Q,
LI6HT~T                       ~

-------
                      CHESAPEAKE. BAY PROGRAM DATA DICTIONARY
TITLE:
                    LIGHT - PHOTONS
PARAMETER B&HE:

DESCRIPTION:
                    LIGHT P
KEYFIBLDr
DATATYPE:
UNITS:
CATEGORIES:
RELATED
PARAMETERS:
R
HOMERIC
H/A
LR
LIGHT L-,
.LIGHT T
RANGE:
                    LIGHT L,LIGHT B,LIGHT P,LIGHT Q,
                      CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:
                    LIGHT - QUANTA
PARAMETER KAHE:

DESCRIPTION:
                    LIGHT Q
KEYFIELD:

DATATYPE:

CHITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC
LR

LISHT1_L,LIGHT_P,LIGHT P, LIGHT
LIGHT T               ~

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   LIGHT - TRANSMISSION
PARAMETER NAME:    LIGHTJT

DESCRIPTION:
KEYFIELD:

DATATYPE:

OMITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC



LR

LIGHT L,LIGHT_P,LIGHT_P,LIGHT_Q,
LIGHT~E
Minimum -
Maximum -
                                   0.1
                                  99. 9
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   CHLOROPHYLL LIGHT PATH
PARAMETER NAME:

DESCRIPTION :
LIPAT_CM

Length of chlorophyll  light path.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Centimeters

WQ

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    LIPID CONTENT
PARAMETER HAKE:

DESCRIPTION:
                    LIPID G
KBYFTELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS LIPID PER GRAM

LR
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Percent Wet Weight,  Lipid
PARAMETER NAME:

DESCRIPTION:
LIPID_P

The percentage of lipids in the sample, wet
weight.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUM 4

decimal percent

TOX
                    Minimum —   0 %
                    Maximum - 100 %

-------
                     CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE:
                   Date, Data Base Entry
PARAMETER NAME:

DESCRIPTION:
LOADDATE

The date that the data was  first  installed in the
CBP Data Base.  Will be assigned  by  the  CBP-CC
staff.
KEYFIELD :
DATATYPE :
ONUS:
CATEGORIES :
RELATED
PARAMETERS :
N
HUM
SAS
TOX


8
Date


RANGE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   LONGITUDE
PARAMETER NAME:

DESCRIPTION:
                   LONG
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC 6.4

Decimal Degrees

ALL

LATITUDE
                   Minimum =
                   Maximum -
               74.7
               80.4

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    MAXIMUM SAMPLE DEPTH
MAXDEPTH
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS

LR

SDEPTH, TDEPTH,MINDEPTH
                      CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE:
                    MINIMUM DETECTABLE CONCENTRATION
PARAMETER  NAME:

DESCRIPTION:
MDC

2 Sigma counting uncertainty associated
with a reported nuclide concentration.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

MDC D,NUCLD  CD

-------
TITLE:
RANGE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   MEDIAN DIAMETER
PARAMETER NAME:    MEDDIAM

DESCRIPTION:
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
PHI
LR, SED

                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   Medium from which M VALUE is taken
MEDIUM

Indicates the sampling or loading medium from
which the value reported in M_VALUE  is  taken.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 8



TOX




See Table 13

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
Analytical Method Reference
METHOD

Identifies the type of sample preparation, type of
analysis conducted and class of compound or
element searched for in the sample.
KBYFTBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 20



TOX




See Table 4
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   MINIMUM SAMPLE DEPTH
MINDEPTH
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS

LR

MAXDEPTH,SDEFTH,TDEPTH

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
MANGANESE, TOTAL
MN
KBYFIELD:
DATATYPE :
TOITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
UO/L
ALL
MN A,MN
MN S,MN~
RANGE:
                   MN_A, MN_C, MN_D, MN_M, MN_N, MN_O, MN_P
                   Minimum -       0.0
                   Maximum -    6900.0
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CBP Model Segment
MODELSEG

The identifier  for the  CBP  Model  segment in which
the observation is located.   The  CBP-CC staff can
assign this value using GIS when  LATDD/LONGDD are
provided.
N

CHAR 15



TOX




See Table  14  and 15

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    KURTOSIS (MOM)
PARAMETER HAMS:

DESCRIPTION:
MOMCKURT

Method of Moments
ref. McBride  in  Carver,71
KBYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N

NUMERIC
N/A
SED
MOMCSI
MOSTD


CE1
2
RANGE:
                    MOMCSKEW, MOMEAN 1, MOMTKURT, MOMTSKEW,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SKEWNESS (MOM)
PARAMETER NAME:

DESCRIPTION:
MOMCSKEW

Method of Moments
ref. McBride  in  Carver,71
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

MOMCKURT, MOMEANJL, MOMTKURT, MOMTSKEW,
MOSTD 2

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   MEAN  DIAMETER (MOM)
PARAMETER NAME:

DESCRIPTION:
MOMEAN_1

Method of Moments
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N

NUMERIC
N/A
SED
MOMCS1
MOSTD


CE1
2
RANGE:
                   MOMCSKEW, MOMCKURT , MOMTKURT, MOMTSKEW,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    KURTOSIS (MOM TABLES)
PARAMETER NAME:

DESCRIPTION:
MOMTKURT

Method of Moments
ref. Math Tables Handbook
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

MOMCSKEW, MOMEAN_1, MOMCKURT, MOMTSKEW,
MOSTD  2

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    KURTOSIS (MOM TABLES)
PARAMETER NAME:

DESCRIPTIOK:
MOMTKURT

Method of Moments
ref. Math Tables Handbook
KEYFIELD :
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N

NUMERIC
N/A
SED
MOMCS1
MOSTD


SE\
2
RANGE:
                    MOMCSKEW,MOMEAN 1, MOMTKURT, MOMCKURT,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    STANDARD DEVIATION (MOM)
PARAMETER NAME:

DESCRIPTION:
MOSTD_2

Method of Moments
ref. McBride  in Carver,71
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

MOMCSKEW, MOMEAN_1, MOMTKURT, MOMTSKEW,
MOMCKURT

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Units of Measurement
PARAMETER NAME:

DESCRIPTION:
M_UNITS

The units of measurement associated with  the
values in M VALUE and DETLIM.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 8



TOX
                     CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                   Measured Value
PARAMETER NAME:

DESCRIPTION:
M_VALUE

The ambient concentration measured or the reported
release/loading/application  data.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUM 4

See M_UNITS

TOX

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    SCREEN MESH WIDTH
NETMBSH
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MM

LR
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
NITROGEN, AMMONIA (FILTERED)
NH4
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
RANGE:
N
NUMERIC
MG/L
WQ,HIST
NH4 A,NH4 C,NH4 D.KH4 M,NH4 N,NH4 O,
NH4~P , NH4_S , NH4_SK
Minimum - 0.0
Maximum = 0.6

-------
                     CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                   NITROGEN, AMMONIA  (WHOLE WATER)
PARAMETER NAME:

DESCRIPTION:
                   NH4W
KBYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

NH4W A,NH4W_C,NH4W_D,NH4W_M,NH4W_N,
NH4W~O, NH4W_P , NH4W_S, NH4M_SK

Minimum -0.0
Maximum - 6.7
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   Species  -  National  Marine Fisheries Service Code
PARAMETER NAME:

DESCRIPTION:
NMFSCODE

The code used by the National  Marine Fisheries
Service to identify the  species.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 4



TOX

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NITROGEN, NITRITE  (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    NO2
KBYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
MG/L
WQ,HIST
NO2 A,N<
NO2 P,N<
RANGE:
                    NO2 A,NO2 C,NO2  D,NO2  M,NO2 N,NO2 0,
                    Minimum •*
                    Maximum —
                0.002
                0.265
                      CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                    NITROGEN, NITRITE +  NITRATE (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    N023
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

MG/L

WQ,HIST

NO23_A,NO23_C,NO23_D,N023_M,N023_N,N023_0,
NO23 P,NO23  S,NO23 SK
Minimum -
Maximum -
0.0006
2.4200

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   NITROGEN, NITRITE  + NITRATE (WHOLE WATER)
PARAMETER NAME:

DESCRIPTION:
                   NO23W
KEYFIELD :
DATATYPE :
ONUS:
CATEGORIES :
RELATED
PARAMETERS :
N
HOMERIC
MG/L
WQ,RIST
NO23W A,
NO23W P,
RANGE:
                   NO23W A,N023W C,NO23W D,NO23W M,NO23W N,NO23W O,
                   Minimum -0.0
                   Maximum - 9.18
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NITROGEN,  NITRATE (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                   N03
KEYFIELD:

DATATYPE:

ONITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

HOMERIC

MG/L

WQ,RIST

NO3_A,NO3 C,NO3_D,NO3_M,NO3_N,NO3_O,
N03 P,NO3~S,NO3 SK
                    Minimum -
                    Maximum -
              -0.09
               2.41

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
Species - National Oceanographic Data Center Code
PARAMETER NAME:

DESCRIPTION:
NODCCODE

The code used by the National Oceanographic Data
Center to identify the species.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

CHAR 12
TOX
                   See  Table  10
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NPDES  Permit  Number
PARAMETER NAME:

DESCRIPTION:
NPDES

The National- Pollutant Discharge Elimination
System Permit Number for this discharge.
KEYFIELD:

DATATYPE:

ONITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

CHAR 9



TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUMBER OF SAMPLES
PARAMETER NAME:

DESCRIPTION:
NSAMP

Number of samples taken.
KEYFIELD:

DATATYPE:

DNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR,WQ

NUMSUB
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NUCLIDE IDENTIFICATION CODE
PARAMETER NAME:

DESCRIPTION:
                   NUCLD CD
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

ALPHANUMERIC

N/A

SED

MDC,MDC D
Codes currently in
Ra-226 Pb-212
Bi-212
Mn-54
Zn-65
Ru-103
1-131
1-133
La-140
Ac-228
Co-57
Nb-95
Ru-106
1-132
Cs-134
Ce-141
use are:
Pb-214
K-40
Co-58
Zr-95
Ag-llOM
Te-132
Cs-136
Ce-143
                                                   Ti-208
                                                   Be-7
                                                   Fe-59
                                                   Mo-99
                                                   Sn-113
                                                   Xe-133
                                                   Cs-137
                                                   Ce-144
                                          Bi-214
                                          Cr-51
                                          Co-60
                                          TC-99M
                                          Sb-125
                                          Xe-133M
                                          Ba-140
                                          Nd-147
                   Np-239

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NUMBER OF SUBSAMPLES
PARAMETER NAME:

DESCRIPTION:
                    HUMS OB
KBYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

NSAMP
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 480
PARAMETER NAME:

DESCRIPTION:
OD480B

Optical density of sample  at  480 nanometers,
before acid.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD510B,'
OD665A,i
                    OD510B,OD630B,OD645B,OD647B,OD663B,OD664B,
RANGE:

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   OPTICAL  DENSITY  -  510
PARAMETER NAME:

DESCRIPTION:
OD510B

Optical density of sample  at  510  nanometers,
before acid.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD480B,'
OD665A,'
RANGE:
                    OD480B,OD630B,OD645B,OD647B,OD663B,OD664B,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 630
PARAMETER NAME:

DESCRIPTION:
OD630B

Optical density of  sample at 630 nanometers,
before acid.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

N/A

WQ

OD510B,OD480B,OD645B,OD647B,OD663B,OD664B,
OD665A,OD750A,OD750B

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 645
PARAMETER NAME:

DESCRIPTION:
OD645B

Optical density  of sample  at  645  nanometers,
before acid.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD510B,<
OD665A,<
RANGE:
                    OD510B,OD630B,OD480B,OD647B,OD663B,OD664B,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 647
PARAMETER NAME:

DESCRIPTION:
OD647B

Optical density  of  sample  at  647  nanometers,
before acid.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

WQ

OD510B,OD630B,OD645B,OD480B,OD663B,OD664B,
OD665A,OD750A,OD750B

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   OPTICAL DENSITY  -  663
PARAMETER NAME:

DESCRIPTION:
OD663B

Optical density of sample at  663 nanometers,
before acid.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD510B,<
OD665A,(
RANGE:
                   OD510B,OD630B,OD645B,OD647B,OD480B,OD664B,
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   OPTICAL  DENSITY - 664
PARAMETER NAME:

DESCRIPTION:
OD664B

Optical density of  sample  at  €64 nanometers,
before acid.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

WQ

OD510B,OD630B,OD645B,OD647B,OD663B,OD480B,
OD665A,OD750A,OD750B

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 665
PARAMETER NAME:

DESCRIPTION:
OD665B

Optical density of sample at 665 nanometers,
after acid.
KBYFIBLD :
DATATYPE :
DNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD510B,'
OD480B,'
RANGE:
                    OD510B,OD630B,OD645B,OD647B,OD663B, OD664B,
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    OPTICAL DENSITY - 750A
PARAMETER NAME:

DESCRIPTION:
OD750A

Optical density of sample at 750 nanometers,
after acid.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

WQ

OD510B,OD630B,OD645B,OD647B,OD663B, OD664B,
OD665A,OD480B,OD750B

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   OPTICAL DENSITY - 750B
PARAMETER NAME:

DESCRIPTION:
OD750B

Optical density of sample at 750 nanometers,
before acid.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ
OD510B,i
OD665A,'
RANGE:
                   OD510B,OD630B,OD645B,OD647B,OD663B,OD664B,
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Species - Old Dominion  University Code
PARAMETER NAME:

DESCRIPTION:
ODUCODE

The code used by Old Dominion  University to
identify the species.
DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

CHAR 10




TOX

-------
                      CHESAPEAKE BUY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER MAKE:

DESCRIPTION:
                    OIL AND GREASE
OIIX3R MG
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SAMPLE

SED

OILGR P
                      CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    OIL AND GREASE PERCENT
OILGR P
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

%

SED

OILGR_MG


0 to 100  %

-------
                     CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                   OXIDATION REDUCTION POTENTIAL
PARAMETER NAME:

DESCRIPTION:
                   ORP
KEYFIBLD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
tnV per cm

ORP_M
RANGE:
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   PARTICLE CLASSIFICATION
PARAMETER NAME:

DESCRIPTION:
PART_CLS

Classification used for particle  size
distribution, Shepard's, or phi class.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

ALPHANUMERIC, LENGTH  4

N/A

SED

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Patuxent River Baain
PARAMETER NAME:

DESCRIPTION:
PATUXENT

The percent of the county in the Patuxent River
Basin.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

HUM 4

decimal percent

TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    LEAD,  TOTAL
PARAMETER NAME:

DESCRIPTION:
                    FB
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

UG/L

WQ,HIST,TOXIC,SED,LR

PB_A, PB_C, PB_D, PB_M, PB_N, PB_O, PB_P,
PB_S,PB_SK

Minimum  -     0.0
Maximum  - 13890.0

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
PYCNOCLINE, LOWER DEPTH



PDBPTHL

Lower extent of pycnocline, if extant.
KEYFIELD :
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
RANGE:
N
NUMERIC
METERS
WQ
PDEPTHU
Minimum «
Maximum »





0.0
30.5
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
PYCNOCLINE,  UPPER DEPTH



PDEPTHU

Upper extent of  pycnocline,  if extant.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS

WQ

PDEPTHL
                    Minimum
                    Maximum
                0.0
               21.5

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
pH
PARAMETER NAME:

DESCRIPTION:
                    PH
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Standard Units

WQ,HIST,TOXIC

PH M
                    Minimum -
                    Maximum —
                1.73
               11.25
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    PHEOPHYTIN A, MONOCHROMATIC
PARAMETER NAME:

DESCRIPTION:
                    PHEA
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

UG/L

WQ

PHEA_A, PHEA_C, PHEA_D, PHEA_M, PHEA_N,'
PHEA_O, PHEA_P , PHEA_S, PHEA_SK
Minimum -
Maximum -
 0.0
48.0

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   PHOSPHORUS  SEDIMENT FLUX
PARAMETER NAME:

DESCRIPTION:
PHOSFLUX

Daily calculated flux of particulate
organic phosphorus to the  sediment surface.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER  DAY

BED

CHLAFLUX,POCFLUX,PONFLUX, SESFLUX, SPECFLUX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   PHOSPHORUS,  PARTICULATE
PARAMETER NAME:

DESCRIPTION:
                   PHOSP
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

PHOSP_A,PHOSP_C,PHOSP_D,PHOSP M,PHOSP_N,
PHOSP O,PHOSP P,PHOSP  S,PHOSP~SK
                    Minimum -
                    Maximum -
               -0.2
                0.4

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    CARBON, PARTICULATB ORGANIC
POC
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
MG/L
WQ, HIST
POC A, P'
POC P.PI
RANGE:
                    POC_A, POC_C, POC_D, POC_M, POC_N, POC_O,
                    Minimum «•
                    Maximum -
               -7.6
               27.7
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CARBON SEDIMENT FLUX
PARAMETER NAME:

DESCRIPTION:
POCFLUX

Daily calculated flux of particulate
organic  carbon to the sediment surface.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER DAY

SED

CHLAFLUX, FHOSFLUX, PONFLUX, SESFLUX, SPECFLUX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
NITROGEN, PARTICULATE ORGANIC
PON
KEYFIELD :
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
MG/L
WQ,HIST
PON A, P<
PON P,PI
RANGE:
                   PON A,PON C,PON D,PON M,PON N,PON 0,
                   Minimum —
                   Maximum -
               -0.5
                6.7
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   NITROGEN SEDIMENT FLUX
PONFLUX

Daily calculated  flux of partlculate
organic nitrogen  to  the sediment surface.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER DAY

SED

CHLAFLUX, POCFLUX,PHOSFLUX, SESFLUX, SPECFLUX

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Potomac Rivar Basin
PARAMETER NAME:

DESCRIPTION:
POTOMAC

The percent of the county in the Potomac River
Baain.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

HUM 4

decimal percent

TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    POTW City
PARAMETER NAME:

DESCRIPTION:
POTWCITY

The city in which the Publicly Owned Treatment
Works is located.
KEYFIELD:

DATATYPE:

DNITSt

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 25



TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   POTW County
PARAMETER NAME:

DESCRIPTION:
POTWCNTY

The county in which the Publicly Owned Treatment
Works ia located.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 25



TOX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   POTW Name
PARAMETER NAME:    POTWNM

DESCRIPTION:       The name  of the  Publicly Owned Treatment Works.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

CHAR 40



TOX

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    PHOSPHORUS, DISSOLVED  ORTHOPHOSPHATE (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    PO4F
KEYFIELD:
DATATYPE:
OMITS:
CATEGORIES :
RELATED
PARAMETERS :
RANGE:
N
NUMERIC
MG/L
KQ,HIST
PO4F A,PO4F C,
PO4F_O,PO4F_P,
Minimum •
Maximum -




PO4F D,PO4F M,PO4F N,
PO4F_S,PO4F_SK
0.001
0.131
                      CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                    PHOSPHORUS, TOTAL ORTHOPHOSPHATE (WHOLE WATER)
PARAMETER  NAME:

DESCRIPTION:
                    P04W
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

PO4W_A,P04W_C,P04W_D,PO4W_M,P04W_N,
PO4W_O, PO4W_P, PO4W_S,PO4W_SK

Minimum -0.0
Maximum -  3.035

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   POTW State Abbreviation
PARAMETER NAME:

DESCRIPTION:
POTWST

The state in which the Publicly Owned Treatment
Works is located.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 2



TOX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   POTW Zip Code
PARAMETER NAME:

DESCRIPTION:
POTWZIP

The zip code  in which the Publicly Owned Treatment
Works  le  located.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 9



TOX

-------
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:
CBP POTW Key - POTW Table
PARAMETER NAME:

DESCRIPTION:
POTW_PK

The primary key that uniquely identifies the
Publicly Owned Treatment Works in the POTW Table.
This number is the POTW-TRI ID as listed in the
TRI.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
Y
CHAR 15

TOX
POTWPSFK
RANGE:
                     CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                   Species  -  Maryland Power Plant  Siting Program Code
PARAMETER NAME:

DESCRIPTION:
PPSPCODE

The code used by the Maryland Power Plant Siting
Program to identify the species.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 4
TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   KIND OF PRECIPITATION
PARAMETER NAME:

DESCRIPTION:
PRECIP_K

Describes weather conditions encountered
when sample was taken.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 2

N/A

WQ
                   '  ' - not recorded
                   '10' - none
                   '11' - drizzle
                   '12' - rain
                   '13' ~ rain, heavy
                   '14' - squall
                   '15' - frozen precipitation
                   '16' - rain or snow
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Priority Discharger Flag
PARAMETER NAME:

DESCRIPTION:
PRIDISCH

Flag indicating if the discharge  facility has been
listed as a known releaser  of Priority Pollutants.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 1
TOX
                   Y  - yes
                   N  - no

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Priority Pollutant Flag
PARAMETER NAME:

DESCRIPTION:
PRIPOLL

A flag indicating if the chemical is on the U.S.
EPA'a Priority Pollutant List.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 1



TOX
                   Y - yes
                   N - no
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Analysis Problem Code
PARAMETER NAME:

DESCRIPTION:
PROBLEM

This code describes the problem associated with a
questionable entry in M_VALUE.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

CHAR 3



TOX




See Table  3

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Processing Organization
PARAMETER NAME:

DESCRIPTION:
PROCJ3RG

A code indicating the name of the proceasing
organization responsible for the original dataset.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 8



TOX
                   EPA      -U.S. EPA
                   MDDEPTAG - Maryland Department of Agriculture
                   MDE      • Maryland Department of the Environment
                   ODU      — Old Dominion University
                   USCG     -U.S. Coast Guard
                   VADEPTAG — Virginia Department of Agriculture
                   VIMS     - Virginia Institute of Marine  Science
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   PRODUCTION EFFICIENCY
PARAMETER NAME:

DESCRIPTION:
PROEFF

Fixation rate.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

C/chl

LR

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
Publishing Information - Line 1
PARAMETER NAME:    PUBLISHl

DESCRIPTION:       Publishing information  for the reference document.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed case



TOX

PUBLISH2, FOBLISH3
TITLE:
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
                   Publishing Information  -  Line  2
PARAMETER NAME:    PUBLISH2

DESCRIPTION:       Continuation line for  publishing  information.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS :

RANGE:
CHAR 75, mixed case



TOX

PUBLISH1, PUBLISH3

-------
TITLE:
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
Publishing Information - Line  3
PARAMETER NAME:    PUBLISH3

DESCRIPTION:       Continuation  line for publishing information.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed case



TOX

PUBLISH1, PUBLISH2
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   QUARTILE  DEVIATION
PARAMETER NAME:    QUARTDEV

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Rappahannock River Basin
PARAMETER NAME:

DESCRIPTION:
RAPP

The percent of the county in the Rappahannock
River Basin.
KEYFIELD:

DATATYPE:

ONUS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
HUM 4

decimal percent

TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   National Wildlife Refuge  Name
PARAMETER NAME:

DESCRIPTION:
REFUGE

The name of the National Wildlife Refuge in which
the pesticide was used.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

CHAR 20
TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   REPLICATE NUMBER
PARAMETER NAME:

DESCRIPTION:
                   REP NUM
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
WQ

RANGE:
                   Minimum -
                   Maximum -
               1.0
               3.0
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   REPLICATE  TYPE
PARAMETER NAME:

DESCRIPTION:
REPJTYPE

Identifies sample types, and kinds  and levels of
sample replication.  Usually used in
conjunction with REP_NUM  (replicate number).
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 4

N/A

WQ
                    'CTRL
                    'FLD
                    'LAB
                    'PL
                    'METH
                    'SPK
                    'SPLT
       - control sample
       - field replicate
       - laboratory replicate
       • field and lab reps, in data set
       - method comparison
       - spike sample
       - field split sample

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    RIVER CODE
PARAMETER NAME:

DESCRIPTION:
RIVER

River, creek,  or  other water body code
that identifies where the  •ample was  collected.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 16

N/A

WQ, TOXIC




SEE TABLE  6
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SALINITY
PARAMETER NAME:

DESCRIPTION:
                    SALIN
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

PARTS PER THOUSAND

WQ,HIST,TOXIC

SALIN M
                    Minimum -
                    Maximum -
                0.0
               35.1

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   SALINITY ZONE
PARAMETER NAME:

DESCRIPTION:
                   SALZONE
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

WQ
                    'F' —  freshwater
                    'O' -  oligohaline
                    'M' -  mesohaline
                    'P' -  polyhaline
                      ( 0.5  -   5.0  ppt)
                      ( 5.0  -  18.0  ppt)
                      (18.0  -  32.0  ppt)
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   SAMPLE  IDENTIFICATION NUMBER
PARAMETER NAME:

DESCRIPTION:
SAMPLEID

A number used to differentiate between multiple
observations with the  same  DATE  and TIME.   May be
assigned by the CBF-CC staff.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

WQ,TOXIC





Arbitrary Number

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:              SAMPLE VOLUME


PARAMETER NAME:     SAMVOL_L

DESCRIPTION:
KEYFIELD:           N

DATATYPE:           NUMERIC

UNITS:              LITERS

CATEGORIES:         WQ

RELATED
PARAMETERS:

RANGE:



                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY



TITLE:              SAMPLE GEOMETRY


PARAMETER NAME:     SAM_GEO

DESCRIPTION:        Sample geometry when oriented on detector cap.
KEYFIELD:           N

DATATYPE:           ALPHANUMERIC,  LENGTH 8

UNITS:              N/A

CATEGORIES:         SED

RELATED
PARAMETERS:

RANGE:              'BLANK   '  - no geometry recorded
                    '0.5LMAR '  - 0.5 liter Marinelli
                    '1LMAR   '  - 1 liter Marinelli
                    '2LMAR   '  - 2 liter Marinelli
                    'PETRI   '  - Petri diah
                    'SOURCE  '  - calibrated source
                    '.075LCOR'  - aediment core

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   SAMPLE MEDIA DESCRIPTION
SAM_MED

Used for •pacific sample identification  in
gamma analysis.
KEYFIELD:
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
SED

RANGE:
                   SEE TABLE  11
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Percent Dry Weight, Sand


SAND_P

The percentage of  sand in the  sample,  dry weight.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUM 4

decimal percent

TOXIC,SEDIMENT





0 to 100  %

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SUBMERGED AQUATIC VEGETATION - NATURAL
PARAMETER NAME:

DESCRIPTION:
SAVPRES

Code that identifies whether SAV bed  ia  natural
or.transplanted.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 7

N/A

LR

SAV_B, SAV_P



'NATURAL' - natural
'TRANSPL' - transplanted
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SUBMERGED AQUATIC VEGETATION - PRESENCE
PARAMETER NAME:

DESCRIPTION:
SAV_B

Code that identifies presence or absence
of SAV at a site.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

LR

SAVPRES, SAV P
                    '0'  - absence
                    '1'  - presence

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   SUBMERGED AQUATIC VEGETATION - PERCENT
PARAMETER NAME:    SAVJP

DESCRIPTION:       Maximum percent  of area covered by SAV.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

%

LR

SAV_B,SAV_PRES


1 - 100 %
TITLE:
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
                   SIZE CLASS  -  200 UM
PARAMETER NAME:     SC200

DESCRIPTION:        Number  in sample in size class 200 urn.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

SC300,SC600,SC850,SC2000

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAMS:

DESCRIPTION:
SIZE CLASS - 2000 UM


8C2000

Nuntb«r in sample in size  class  2000 um.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

SC300,SC600,SC850,SC200
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
SIZE CLASS - 300 UM


SC300

Number in sample in size class  300 um.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

N/A

SED

SC200,SC600,SC850,SC2000

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   SIZE CLASS -  600 UM
PARAMETER NAME:    SC600

DESCRIPTION:       Number in »ample  in  size class  600 urn.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

8C300,SC200,SC850,SC2000
TITLE:
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
                   SIZE CLASS  -  850  UM
PARAMETER NAME:    SC850

DESCRIPTION:       Number in  sample  in  size class 850 urn.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

SED

SC300,SC600,SC200,SC2000

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SAMPLE DEPTH
PARAMETER NAME:

DESCRIPTION:
SDEPTH

D*pth from surface at which sample was taken.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
Y

NUMERIC

METERS

WQ,HIST,TOXIC

TDEFTH
                    Minimum -
                    Maximum —
                0.0
               37.0
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
SELENIUM, TOTAL
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

UG/L

WQ,HIST,TOXIC,SED,LR

SE_A, SE_C, SE  D, SE_M, SE_N, SE_N, SE_O,
SE_P,SE_S,SE~SK

Minimum -  0.0
Maximum -1.2

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   SBCCBI DEPTH
PARAMETER NAME:

DESCRIPTION:
                   SECCHI
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
RANGE:
N
NUMERIC
METERS
KQ,HIST
SECCHI_M
Minimum -
Maximum ~





0.1
11.0
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   CHESAPEAKE BAY PROGRAM SEGMENT DESIGNATION
PARAMETER NAME:

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
SEGMENT

The coda for the CBP segment in which  the
observation is located.  The CBP-CC  staff  can
assign this value using CIS when LATDD/LONGDD are
provided.
N

CHARACTER, LENGTH 5

N/A

WQ,HIST,LR,TOXIC,SED





SEE TABLE 7

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SESTON SEDIMENT FLUX
PARAMETER NAME:

DESCRIPTION:
SESFLUX

Daily calculated  flux of  seston  (total
particulatea) to  the sediment  surface.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER DAY

SED

CHLAFLUX, POCFLUX, PONFLUX, PHOSFLUX, SPECFLUX,
SES MG
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SESTON WEIGHT
PARAMETER NAME:

DESCRIPTION:
SES_MG

Dry weight of  total particulates (seston)
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

SED

SESFLUX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   SETTLED VOLUME  -  NORMALIZED
SEVL ML3
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

ML PER CUBIC METER

LR

SEVL MLS,SEVZ ML3,SEVZ MLS
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    SETTLED VOLUME - SAMPLE
SEVL MLS
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

ML PER SAMPLE

LR

SEVL ML3,SEVZ ML3,SEVZ MLS

-------
                      CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAKE:

DESCRIPTION:
                    SETTLED VOLUME  -  NORMALIZED ZOO.
SBVZ MLS
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

ML PER CUBIC  METER

LR

SEVL MLS,SEVL ML3,SEVZ MLS
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER  NAME:

DESCRIPTION:
                    SETTLED VOLUME  -  ZOO.  SAMPLE
SEVZ MLS
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

ML PER CUBIC  METER

LR

SEVL MLS, SEVZ ML3,SEVL ML3

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   SEX  OF  INDIVIDUAL
PARAMETER NAME:

DESCRIPTION:
                   SEX
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

LR,TOXIC
                    'M'  - male
                    'F'  - female
                    'U'  - unknown
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SILICA,  TOTAL
PARAMETER NAME:

DESCRIPTION:
                    SI
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,RIST

SI_A, SI_C, SI_D, SI_M, SI_N, SI_O,
SI_P,SI_S,SI_SK
Minimum -
Maximum -
                                   0.01
                                   3.80

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Standard Industrial Classification Code, Primary
PARAMETER NAME:

DESCRIPTION:
SIC

The SIC code that identifies the primary type
industrial activity for the discharge facility.
XEYFIELD:
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
CHAR

TOX
SIC2

4



RANGE:
                   Refer to SIC Handbook.
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Standard Industrial Classification Code,  Secondary
PARAMETER NAME:

DESCRIPTION:
SIC2

The SIC code that identifies the secondary type
industrial activity for the discharge facility.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 4




TOX

SIC



Refer to SIC Handbook.

-------
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   SPECIFIC GRAVITY
PARAMETER NAME:

DESCRIPTION:
SIG_T

Specific gravity of water in a  sample,
calculated from other parameters  ($$$$$$$$$$)
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
M

NUMERIC

N/A

WQ
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SILT
PARAMETER NAME:

DESCRIPTION:
SILT_MG

Dry weight silt.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SAMPLE

SED

SILT P

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SILT PERCENT
PARAMETER NAME:

DESCRIPTION:
SILT_P

Percent dry weight  silt.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

%

SEDIMENT, TOXIC

SILT


0 to 100 %
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SILICIOUS ACID
PARAMETER NAME:

DESCRIPTION:
                    SIOH4
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

SED

SIOH4_A, SIOH4_D, SIOH4_M, SIOH4_N, SIOH4_O,
SIOH4_P,SIOH4_S

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   SITE CODE
PARAMETER NAME:    SITE

DESCRIPTION:       Collecting agency site code.
KEYFTBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 8

N/A

LR

SITBNO
TITLE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                    SITE NUMBER
PARAMETER NAME:     SITENO

DESCRIPTION:        Collecting agency site nuniber.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

SITE


Arbitrary Number

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:              SKEWNESS  (FBI QUARTILE)


PARAMETER NAME:     SKEW

DESCRIPTION:
KEYFIELD:           N

DATATYPE:           NUMERIC

UNITS:              N/A

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:              SULFITE


PARAMETER NAME:     SO3

DESCRIPTION:
KEYFIELD:           N

DATATYPE:           NUMERIC

UNITS:              UG/G

CATEGORIES:         SED

RELATED             SO3_A, SO3_D, SO3_M, S03_N, SO3_O,
PARAMETERS :         SO3_P , SO3_S

RANGE:

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   SULFATE
SO4
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
UG/G
SED
SO4 A, Si
S04_P,SI
RANGE:
                   SO4 A,S04 D,S04 M,SO4 N,SO4 O,
                   Minimum «     0.0
                   Maximum -  7570.0
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   SEDIMENT OXYGEN DEMAND
SOD
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG PER SQUARE METER PER DAY

SED

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SOURCE AGENCY
PARAMETER NAME:

DESCRIPTION:
SOURCE

Source data collection agency.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 8

N/A

WQ,HIST,TOXIC
                    'MD/MDE'  - MD. DEPT. OF THE ENVIRONMENT
                    'MD/DNR'  - MD. DEPT. OF NATURAL  RESOURCES
                    'VA/WCB'  - VA. STATE WATER CONTROL BOARD
                    'VA/ODU'  - OLD DOMINION UNIVERSITY
                    'VA/VIMS' - VA. INSTITUTE OF MARINE SCIENCES
                    'DC/DCRA' - D.C.DEPT. CONSUMER AND REG.  AFFAIRS
                    'PA/SRBC' - SUSQUEHANNA RIVER  BASIN COMMISSION
                    'PA/DER'  - PA. DEPT. OF ENVIRONMENTAL RESOURCES
                    'UM/CBL'  - CHESAPEAKE BIOLOGICAL LABORATORY
                    'UM/HPEL' - HORN POINT ENVIRONMENTAL LABORATORY
                      CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                    SPECIES SEDIMENT FLUX
PARAMETER NAME:

DESCRIPTION:
SPECFLUX

Daily calculated flux used to characterize
a particular species.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:
N

NUMERIC

MG PER SQUARE METER PER DAY

BED

CHLAFLUX, POCFLUX, PONFLUX, PHOSFLUX, PHOSFLUX
RANGE:

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
SPECIFIC ACTIVITY


SPEC_ACT

Specific activity of label  (DPM)
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

uci per ml

LR
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
SPECIES CODE


SPEC_COD

NOAA/NODC species code.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR




SEE TABLE 10

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAMS:

DESCRIPTION:
                    SPIKE TIME
SPIKETIM
KEYFIELD :
DATATYPE :
OMITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
HBMM


RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    SUBSAMPLE VOLUME
SSVOL ML
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

ML

WQ

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   State Abbreviation
PARAMETER NAME:

DESCRIPTION:
                   STATE
KBYFTBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 2, UPPERCASE
TOX
                   DE - Delaware
                   MD — Maryland
                   NY - New York
                   PA - Pennsylvania
                   VA - Virginia
                   WV - West Virginia
                              CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                    SAMPLING STATION IDENTIFIER
PARAMETER NAME:

DESCRIPTION:
STATION

Name of the location where the  sample  was taken.
Thia field must be supported by documentation
that includes latitude and longitude.
KEYFIELD:

DATATYPE:

ONITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHARACTER, LENGTH  8

N/A

WQ,BIST,TOXIC,SED

LATITUDE, LONGITUDE, BASIN, SEGMENT
                    Refer to the latest edition of the "Chesapeake
                    Bay Monitoring Program Atlas" for descriptions
                    of stations and monitoring programs.

-------
                              CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE:
                   SEDIMENT TEMPERATURE
PARAMETER NAME:

DESCRIPTION:
                   STEMP
KEYFIBLD:

DATATYPE:

ONUS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Degrees Celcius

SED,LR

WTBMP,ATEMP
                   Minimum -  4.5
                   Maximum —32.5
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Susquehanna River Basin
SOSQ

The percent of the county in the Susquehanna River
Basin.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUM 4

decimal percent

TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   COLIFORM,  TOTAL
PARAMETER NAME:

DESCRIPTION:
                   TCOLI
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MPN/100

WQ

TCOLI D,TCOLI M
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    TOTAL NUMBER PER LITER
PARAMETER NAME:

DESCRIPTION:
                    TDEN L
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

LR

TDEN M3

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER HAME:

DESCRIPTION:
TOTAL DENSITY


TDEN_M3

Total density par cubic meter.
KBYFIELD :
DATATYPE :
ONITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
N/A
LR
TDEN_L
RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
DEPTH, TOTAL


TDEPTH

Total depth, in meters,  at  the  sampling site.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS

WQ,HIST,SED,TOXIC
                    Minimum —  2.6
                    Maximum -41.8

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   NITROGEN,  DISSOLVED (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    TON
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
MG/L
WQ,RIST
TON A,T:
TDN_P,T1
RANGE:
                    TDN_A, TDN_C, TDN_D, TDN_M, TDN_N, TDN_O,
                    Minimum -
                    Maximum —
               0.05
               8.47
                      CHESAPEAKE BAY PROGRAM DATA  DICTIONARY
TITLE:
                    PHOSPHORUS, DISSOLVED  (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                    TDP
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

TDP_A, TDP_C, TDP_D, TDP_M, TDP_N, TDP_O,
TDP P,TDP S,TDP  SK
                    Minimum -
                    Maximum »
                0.001
                0.811

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CARBON,  TOTAL INORGANIC DRY
PARAMETER NAME:

DESCRIPTION:
TICD

Total inorganic carbon, dry weight.
KBYFIBLD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
ug/g
WQ,SED
TICD_D
RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Tidal Stage
PARAMETER NAME:

DESCRIPTION:
TIDAL

Code that describes the tidal stage during the
sampling period.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 1




TOX
                    E - ebb tide
                    F - flood tide
                    L - low slack
                    H - high alack
                    "- unspecified

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   TIDAL STAGE
PARAMETER HAMS:

DESCRIPTION:
TIDE

Stage of tide when this sample was taken.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

WQ

TDEPTH  (may vary at a specific  station)
                    '  ' - NOT  RECORDED OR NOT APPLICABLE
                    'E' - EBB  TIDE
                    'F' - FLOOD  TIDE
                    'L' - LOW  SLACK TIDE
                    'H' - HIGH SLACK TIDE
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    INCUBATION PERIOD
PARAMETER NAME:

DESCRIPTION:
TIMDUR_H

Duration of incubation period.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

HHMM

LR

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SAMPLING TIME
PARAMETER NAME:

DESCRIPTION:
TIME

Time aan$>ling was begun,  Eastern standard Time
using 2400 clock.
KEYFTELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
Y

NUMERIC

HHMM

WQ,HIST,TOXIC

DATE


0001  (12:01 A.M.)  to  2400 (Midnight)
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    BEGINNING TIME
PARAMETER NAME:

DESCRIPTION:
                    TIME BEG
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

HHMM

LR

TIME END

-------
TITLE:
RANGE:
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
                   ENDING  TIME
PARAMETER NAME:    TIME_END

DESCRIPTION:
KEYFIBXiD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
HHMM
LR
TIME_BEG
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    TIME,  TOTAL ELAPSED
TIME SUM
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

HRMMSS

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   TIME  COUNTED
PARAMETER NAME:

DESCRIPTION:
TIMJTNT

Time counted - C14 Production
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Decimal minutes

LR
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Tissue Code
PARAMETER NAME:

DESCRIPTION:
TISSUE

Code that identifies the specific portion of the
individual used  for this sample.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 2
TOX
                    59 - whole organism
                    86 - fillet
                    87 - edible portion

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   Document Title  - Line  1
PARAMETER HAME:    TITLE1

DESCRIPTION:       The title of the  reference document.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed caae



TOX

TITLE2, TITLES, TITLE4
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   Document  Title -  Line 2
TITLES

Continuation line  for  the  title of the reference
document.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed case



TOX

TITLE1, TITLES,  TITLE4

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Document Title - Line 3
PARAMETER NAME:

DESCRIPTION:
TITLES

Continuation line for the title of the reference
document.
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed case



TOX

TITLE1, TITLE2, TITLE4
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    Document Title - Line 4
PARAMETER NAME:

DESCRIPTION:
TITLE4

Continuation line for the title of the reference
document.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHAR 75, mixed case



TOX

TITLE1, TITLE2, TITLES

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
NITROGEN, TOTAL DISSOLVED KJEHDAHL (FILTERED)
PARAMETER NAME:

DESCRIPTION:
                   TKNF
KEYFIBLD:
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS:
N
NUMERIC
MG/L ^-^.
WQ,HIST
TKNF A,1
TKNFJV
RANGE:
                    TKNF A, TKNF C,TKNF D, TKNF M,TKNF N,
                    Minimum -
                    Maximum -
               -0.21
                8.46
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NITROGEN,  TOTAL KJEHDAHL  (WHOLE WATER)
PARAMETER NAME:

DESCRIPTION:
                    TKNW
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

TKHW_A, TKNW_C, TKNW_D, TKNW_M, TKNW_N,
TKNW O,TKNW P,TKNW S,TKNW SK
                    Minimum —
                    Maximum -
                0.01
                8.52

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
NITROGEN, TOTAL (WHOLE WATER)
PARAMETER NAME:

DESCRIPTION:
                    TN
KEYFIBLD :
DATATYPE :
ONITS:
CATEGORIES :
RELATED
PARAMETERS :
RANGE:
N
NUMERIC
MG/L
WQ,HIST
TN A, TN C,TN D,TN_M,TN N, TN O,
TN P,TN S,TN_SK
Minimum - 0.11
Maximum «• 8.52
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    CARBON, TOTAL ORGANIC
PARAMETER NAME:

DESCRIPTION:
                    TOG
KEYFIBLD:

DATATYPE:

ONITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

TOC_A, TOC_C, TOC_D, TOC_M, TOC_N, TOC_O,
TOC P,TOC S,TOC  SK
                    Minimum -
                    Maximum -
                1.0
               33.7

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   CARBON,  TOTAL ORGANIC,  DRY
PARAMETER NAME:

DESCRIPTION:
                    TOCD
                    Total  organic carbon - dry weight.
KBYFIBLD :
DATATYPE:
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
UG/G
LR,WQ
TOCD D
RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NITROGEN,  TOTAL ORGANIC
PARAMETER NAME:

DESCRIPTION:
                    TON
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

TON_A, TON_C, TON_D, TON_M, TON_N, TON_O,
TON P,TON S,TON SK
                    Minimum »
                    Maximum •*
              -0.2
               8.4

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    TOWING DURATION
TOW DUR
KEYFIBLD:

DATATYPE:

ONITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

HHMMSS

LR

TOW LEW, TOW SPD
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    TOWING LENGTH
TOW LBN
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS

LR

TOW DUR, TOW  SPD

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    TOWING SPEED
PARAMETER NAME:

DESCRIPTION:
                    TOW SPD
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

METERS PER SECOND

LR

TOW_DUR,TOW_LEN
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    PHOSPHORUS, TOTAL  (WHOLE WATER)
PARAMETER NAME:

DESCRIPTION:
                    TP
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L

WQ,HIST

TP_A,TP_C,TPJD,TP M, TP_N,TP_O,
TP P,TP S,TP  SK  ~
                    Minimum •»
                    Maximum -
                0.01
                0.84

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   Trad* Name  of Pesticide
PARAMETER NAME:

DESCRIPTION:
TRADENM

The trade name of the pesticide.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 15



TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    TREATMENT CODE - PHYTOPLANKTON PRODUCTIVITY
PARAMETER NAME:

DESCRIPTION:
TREATMT

C14 or oxygen treatment for
phytoplankton productivity.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

WQ
                    'C'  - C14 production
                    'O'  - Oxygen production

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
TRI Zip Code
PARAMETER NAME:

DESCRIPTION:
TRIZIP

The zip code in which the TRI discharge facility
i» located.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 9



TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SOLIDS,  TOTAL SUSPENDED
PARAMETER NAME:

DESCRIPTION:
                    TSS
KEYPIBLD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
MG/L
WQ,HIST
TSS A,T,
TSS_O, T!
RANGE:
TSS_A,TSS_C,TSS_D,TSS_M,TSS_N,
TSS_O, TSSJP, TSS_S, TSS_SK

Minimum -      0.2
Maximum •   1166.6

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    TURBIDITY JTO
TORE JTO
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Jackaon Turbidity Units  (JTU)

WQ,HIST

TURB NTU
                   Minimum -   1.0
                   Maximum » 150.0
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                    TURBIDITY NTU
TURB NTU
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

Nephelometric  Turbidity Units (NTU)

WQ,HIST

TURB JTU
                    Minimum -   1.3
                    Maximum - 130.0

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   SOLIDS,  TOTAL VOLATILE
PARAMETER NAME:    TVS

DESCRIPTION:
KBYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

MG/L



TVS D,TVS M
                   Minimum —   30.0
                   Maximum - 8000.0
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
TOTAL VOLATILE SOLIDS, PERCENT
TVS P
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

%

WQ




0 to 100 %

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
TAXONOMIC CODE


TXCODE

Collecting agency taxonomlc code.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
alphnumeric
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Species - VERSAR  Code


VERSCODE

The code used VERSAR to  identify the  species.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 4
TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
Species - VA Institute of Marine Sciences Code
PARAMETER NAME:

DESCRIPTION:
VIMSCODE

The code used by the Virginia Institute of Marine
Sciences to identify the species.
KEYFIBLD:

DATATYPE:

UNITS!

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHAR 10



TOX
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   WAVE HEIGHT
PARAMETER NAME:

DESCRIPTION:
                   WAVHGT
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER LENGTH  1

N/A

WQ,HIST

WINDSPD,WINDIR


'  '  - not recorded
'0'  - 0   to 0.1  meters - calm
'!'  - 0.1 to 0.3  meters
'2'  - 0.3 to 0.6  meters
'3'  - 0.6 to 1.0  meters
'4'  - 1.0 to 1.3  meters
'5'  -    GT 1.3  meters

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
Wast Chesapeake Basin
WCHBSAP

The percent of the county in the West Chesapeake
Basin.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUM 4

decimal percent

TOX
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
Wet Weight of Individual


WEIGHT

The wet weight of the individual for this sample.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUM 4

grams

TOX

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   WIND DIRECTION
PARAMETER NAME:

DESCRIPTION:
WINDIR

Describes the predominant direction of the wind
during the sampling event.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
CHARACTER, LENGTH 3
N/A
WQ
WINDSPD,WAVHGT
'N '
'NNE'
'NE '
'ENE'
'E '
'ESE'
'SB '
'SSE'
— from 0 degrees
• from 22 degrees
- from 45 degrees
- from 67 degrees
- from 90 degrees
- from 112 degrees
• from 135 degrees
- from 157 degrees
'S '
'SSW
'SW '
'WSW
'W '
'WNW'
'NW '
'NNW'
— from 180 degrees
** from 202 degrees
- from 225 degrees
- from 247 degrees
- from 270 degrees
•= from 292 degrees
- from 315 degrees
= from 337 degrees
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   WIND  SPEED
PARAMETER NAME:

DESCRIPTION:
WINDSPD

Describes the predominant wind  speed
during a sampling event.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH 1

N/A

*Q,HIST

WAVHGT,W1NDIR
                      '  - not recorded
                     0'  •• 0 knots to 1 knot - calm
                     1'  - greater than 1  knots to 10 knots
                     2'  - greater than 10 knots to 20 knots
                     3'  " greater than 20 knots to 30 knots
                     4'  - greater than 30 knota to 40 knots
                    '5'  - greater than 40 knots

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, NON-BIVALVE


WTAFN_G

Ash-free dry weight  of  non-bivalve species.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTAF G,WT G,WTAFPROF,WTAFT G,WTAS G
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PROFILE


WTAFPROF

Ash free dry weight of profile sample
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

GRAMS

LR

WTAF_G, WTAFN_G , WT_Q, WT AF T_G, WTAS_G

-------
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
HEIGHT, TOTAL


WTAFTJ3

Total aah free dry weight.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTAF_G, WTAFN_G, WTAFPROF, WT_G , WTAS_G
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, ASH FREE  DRY
WTAF G
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WT G,WTAFN G,WTAFPROF,WTAFT G,WTAS G

-------
                      CHESAPEAKE BAT PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
                   HEIGHT,  ASH
WTAS G
RBYFXELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

GRAMS

LR

WTAF G,WTAFN G,WTAFPROF,WTAFT G,WT G
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PAH  DRY


WTDYPAHG

Dry weight of sample  used in PAH analysis.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTWTPAHG

-------
TITLE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                   TEMPERATURE, WATER
PARAMETER NAME:    WTBMP

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

 RANGE:
N

NUMERIC

Degrees Celsius

WQ,HIST,TOXIC

WTEMP M
 Minimum -
 Maximum -
-2.0
32.2
  TITLE:
                       CHESAPEAKE BAY PROGRAM DATA DICTIONARY
                     WEIGHT,  SEDIMENT
  PARAMETER NAME:     WTSED_G

  DESCRIPTION:        Weight of sediment per  sample.
KEYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
GRAMS
SED

   RANGE:

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PCB DRY


WTDYPCBG

Dry weight of sample used  In  PCB  analysis.
KEYPIELD:
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
NUMERIC
GRAMS
LR
WTWTPCBG
RANGE:
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PEST  DRY


WTDYPESG

Dry weight  of sample  used in pesticide analysis.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTWTPESG

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PAH WET


WTWTPAHG

Net weight of sample used in PAH  analysis.
KBYFIELD :
DATATYPE :
UNITS:
CATEGORIES :
RELATED
PARAMETERS :
N
HOMERIC
GRAMS
LR
WTDYPAHG
RANGE:
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PCB WET


WTWTPCBG

Wet weight of sample used in PCB analysis.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTDYPCBG

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
WEIGHT, PEST NET


WTWTPESG

Wet weight of  sample used in pesticide analysis.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS :

RANGE:
N

NUMERIC

GRAMS

LR

WTDYPESG
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:              WEIGHT


PARAMETER NAME:     WT_G

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

GRAMS

LR

WTAF_G, WTAFNJ3, WTAFPROF, WTAFTJ3, WTAS_G

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   York River Basin
PARAMETER NAME:

DESCRIPTION:
YORK

The percent of the county in the York River Basin.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NDM 4

decimal percent

TOX
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:


PARAMETER NAME:

DESCRIPTION:
ZINC, TOTAL
ZN
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

UG/L

WQ,HIST,TOXIC,SED,LR

ZN_A,ZN  C,ZN  D,ZN_M,ZN_N,ZN O,
ZN_P, , ZN_S , ZN_SK           ~

Minimum  -     0.0
Maximum  - 19900.0

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   ANALYSIS PROBLEM CODE
PARAMETER NAME:

DESCRIPTION:
parametername_A

Code for data submitters to report anomalies
encountered collecting or processing a sample.
Out of range values may be acceptable depending
on sampling or analysis conditions reported here.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

CHARACTER, LENGTH  2

N/A

WQ,LR,TOXIC

N/A


SEE TABLE 3
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    SPIKE CONCENTRATION
PARAMETER NAME:

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS:
parantetername_C

Concentration of  the spike added to the background
sample.  If a correction for dilution is needed,  i
should be made before reporting the data. Spike
concentration should be 0.5 to 2.0 times the  sampl
background concent rat ion.

N

NUMERIC

UG/L

WQ

parametername_SK, REP_TYPE = 'SPK'
RANGE:

-------
                     CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                   METHOD DETECTION LIMIT  (MDL)
PARAMETER NAME:

DESCRIPTION:
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
parametername_D

Values reported as below the detection limit  in
the 'Monitoring Program data are stored as the
detection limit.  If MDL was used to calculate
a parameter, the calculated parameter XX_M  field
(Method Code) begins with a 'C'.

N

CHARACTER, LENGTH 1

N/A

WQ,HIST

parametername_M
                    '<' - leas than detection  limit  of  the  method
                    '  ' - parameter value acceptable for  method
                    '#' - trace
                    'J' - estimated value
                    'N' - not detected
                    'C' - calculated using another parameter at MDL
                    'I' - instrument detection limit (IDL)
                    'M' - method  detection limit  (MDL)
                    'S' - sample  quantification limit (SQL)
                    'Q' - limit of quantification (LOQ)
                     CHESAPEAKE BAY  PROGRAM DATA DICTIONARY
TITLE:
                   METHOD  CODE
PARAMETER NAME:

DESCRIPTION:
parametername_M

Code  for method  of  collection  or  analysis.
Methods are  described in detail in CHESSEE.
May refer to field  or laboratory  methods.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:
ALPHANUMERIC,  LENGTH 4

N/A

WQ,LR,TOXIC,HIST

parametemame_D
RANGE:
                    SEE TABLE 4

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    NUMBER OF VALUES FOR STANDARD DEVIATION
PARAMETER NAME:

DESCRIPTION:
paramet«mame_N

Number of replicates used to calculate the
standard deviation.
KEYFZELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

N/A

WQ.
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:
                    LABORATORY ANALYSIS SIGN-OFF
PARAMETER NAME:

DESCRIPTION:
parantetername_p

Initials of  laboratory person who  reviewed
and signed-off on  the parameter.
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES :

RELATED
PARAMETERS :

RANGE:
N

CHARACTER, LENGTH  2

N/A

WQ

-------
                     CHESAPEAKE BAY PROGRAM  DATA DICTIONARY
TITLE:
                   PERCENT RECOVERY
PARAMETER NAME:

DESCRIPTION:
parantetername_P

Percent recovery should be  calculated using the
formula in EPA  (1984):
XX_P -  ((XX_SK  - XX)  / XX_C)  *  100
where XX - parameternaine.
KEYFZBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
N

NUMERIC

%

WQ

parantetemame SK,parameternaine_C,
REP_TYPE - 'SPK'

0 TO 100 %
                     CHESAPEAKE  BAY PROGRAM DATA DICTIONARY
TITLE:
                   STANDARD  DEVIATION OF LABORATORY REPLICATES
PARAMETER NAME:

DESCRIPTION:
KEYFIELD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:

RANGE:
parameternaine_S

If used, the concentration of (parameternaine) must
be the MEAN of the  lab  replicates used to
calculate the standard  deviation.  MEAN is
important, since precision may vary with
concentration.  parametemame_N is required, also.

N

NUMERIC

N/A

WQ

parametername_N

-------
                      CHESAPEAKE BAY PROGRAM DATA DICTIONARY
TITLE:



PARAMETER NAME:

DESCRIPTION:
                    SPIKE CONCENTRATION AND MEASURED BACKGROUND
parameternaine_SK

Measured value of the mixture of the
•pike with the background sample.
KEYFIBLD:

DATATYPE:

UNITS:

CATEGORIES:

RELATED
PARAMETERS:
N

NUMERIC

UG/L

WQ

parametername_C, parametername_P
RANGE:

-------
     APPENDIX 6:




DATA DICTIONARY TABLES

-------
                             TABLE 1:

                 FLUX/SEDIMENTATION  CALCULATIONS
CHLA_FXD = CHLA * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

PHOS_FXD = PHOS * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

POC_FXD  = POC * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

PON_FXD  = PON * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

SES_FXD  = SES_MG * SAMVOL_L  *  (219.3  (cm**2/m**2)) / TIME_SUM *
           TDEPTH / SDEPTH

SPEC_FXD = CNT *  (DVOL_ML / EXVOL_ML)  /  TIME_SUM * 219.3 *
           (TDEPTH / SDEPTH)
                                G-l

-------
                             TABLE 2
            CAS NUMBERING CODE AND CAS LABEL  (CAS PK)
For the user's convenience, a representative sample  of CAS numbers
is included here.
               007429905
               000056553
               007440439
               007440508
               007439896
               000206440
               007439976
               000005889
               000091203
               007439921
               000085018
               000129000
               007440315
               007440566
ALUMINUM
BENZ[A]ANTHRACENE
CADMIUM
COPPER
IRON
FLUORANTHENE
MERCURY
LINDANE
NAPTHALENE
LEAD
PHENANTHRENE
PYRENE
TIN
ZINC

-------
                             TABLE 3

                     ANALYSIS PROBLEM CODES
The following letter codes describe the problem associated with a
questionable parameter value.  The valid entries for this field are
as follows:

      'A'   = Laboratory accident
      'B'   = Interference
      'C'   = Mechanical/materials failure
      'D'   = Insufficient sample
      'E'   = Sample received too late
      'F'   = Sample too old when received
      'H'   = Analysis run by another lab
      r'J'   = Wrong type sample (e.g., filtered sample requesting
             TSS)
      'K'   = Sample frozen when received (results questionable)
      'M'   = Sample received warm
      'N'   = Sample lost
      'P'   = Lost results
      'R'   = Sample contaminated
      'S'   = Sample container broken during analysis
      'T'   = No phaeophytin in sample
      'U'   = Matrix problem resulting from the interrelationship
             between variables such as pH and ammonia
      'V   = Sample results rejected due to QA/QC criteria
      'W   = Duplicate results for all parameters
      'X.'   = Sample not preserved properly
      'Y'   = Analyzed in duplicate, results below detection limit
      'Z'   = Analyzed by method of standard additions
      'AA' = Sample thawed when received
      'BB' = Torn filter pad
      'CC' = Pad unfolded in foil pouch
      'DD' = Assumed sample size (sample size not reported)
           = Foil pouch very wet when received from field,
             therefore poor replication between pads, mean reported
           = Poor replication between pads, mean reported
      'GG' = Sample received after  holding time, therefore results
             are questionable
      'HH' = Sample not taken
      'JJ' = Amount filtered not recorded  (therefore calculation
             could not be done)
      'KK' = Parameter test not required for study
      'LL' = Mislabeled
      'MM' = Over 20%  of sample adh^re'-i +-- pouch and outside of pad

-------
     = Data for this variable are considered non-
       interpretable
'NN'  = Particulates found in filtered sample
'PP'  = Assumed sample volume (pouch volume differed from data
       sheet volume pouch volume used)
'QQ'  = Although value exceeds a theoretically equivalent or
       greater value (e.g., P04F>TDP),  the excess is within
       precision of analytical techniques and therefore not
       statistically significant
'RR'  = No sample received
' SS'  = Sample rejected due to unusually high suspended
       sediment concentration
'TT'  = Instrument failure on board research vessel
'UU'  = Analysis discontinued
'W  = Station was not sampled due to bad weather conditions,
       research vessel mechanical failure,  or failure of
       state highway bridges to open or close
'WW'  = High turbidity/high optical density (GT .1)  at 750
       nanometers; actual value recorded;  may be acceptable
       if high CHLA
'XX'  = Sampling for this variable not included in the
       monitoring program at this time or was not monitored
       during a specific cruise
                         G-4

-------
  TABLE 4:
METHOD CODES
Descriptions  of each  method may
Methods in CHESSEE.

     ALK101    ALK102    ALKF01

     BOD5F01   CHLA101   CHAL102

     CHLAF03   CHLAF04   CHLAF05

     CHLAF08   CONDF01   DIN101

     DISOXYF01 DISOXYF02 DOC101

     DOCF02    DOCF03    DOCF04

     DOP101    FCOLI101  FCOLI102

     FSS101    FSSF01    NH4101

     NH4104    NH4F01    NH4F02

     NH4F05    NH4F06    NH4F07

     NO2103    N02F01    N02F02

     NO2F05    N03101    NO3102

     NO3105    N03F01    NO3F02

     NO3F05    NO3F06    PHEA101

     PHEAF02   PHEAF03   PHEAF04

     PHEAF07   PHEAF08   PHF01

     PO4F101   P04F102   PO4F103

     PO4FF02   P04FF03   PO4FF04

     P04FF07   POC101    POC102

     PON102    PONF01    SALINFCH
        be  found under  Documentation;
         ALKF02

         CHLAF01

         CHLAF06

         DIN102

         DOC102

         DON101

         FCOLIF01

         NH4102

         NH4F03

         N02101

         N02F03

         N03103

         N03F03
BOD5101

CHLAF02

CHLAF07

DISOXY101

DOCF01

DON102

FCOLIF02

NH4103

NH4F04

N02102

NO2F04

NO3104

N03F04
         PHEA102   PHEAF01

         PHEAF 0 5   PHEAF 0 6

         PHF02     PHOSP101

         PO4F104   PO4FF01

         PO4FF05   PO4FF06

         POCF01    PON101

         ~E(7r~HTFO 1  SI 101
     G-5

-------
SI102
SIF02
TCOLI101
TDN102
TDP103
TDPF04
TKNF102
TKNFF03
TKNW102
TKNWF03
TNI 03
TOCF03
TP103
TPF02
TPF07
TSSF04
SI103
SIF03
TCOLIF01
TDN103
TDP104
TDPF05
TKNF103
TKNFF04
TKNW103
TKNWF04
TOC101
TOCF04
TP104
TPF03
TSS101
TSSF05
SI104
SIF04
TCOLIF02
TDNF01
TDPF01
TDPF06
TKNF104
TKNFF05
TKNW104
TKNWF05
TOC102
TOCF05
TP105
TPF04
TSSF01
TSSF06
SI105
SIF05
TCOLIF03
TDP101
TDPF02
TDPF07
TKNFF01
TKNFF06
TKNWF01
TNI 01
TOCF01
TP101
TP106
TPF05
TSSF02
TVS101
SIF01
SOE101
TDN101
TDP102
TDPF03
TKNF101
TKNFF02
TKNW101
TKNWF02
TN102
TOCF02
TP102
TPF01
TPF06
TSSF03
WTEMPF01
G-6

-------
                            TABLE 5:

                     CRUISE NUMBER AND DATES
This alpha-numeric code  identifies  the cruise to  which the data
observation belongs.   Cruise identification is useful for grouping
data that are collected over a range of sample dates, but which are
considered data for a specific sampling period.  The current values
for this field are as follows:
               CRUISE
BEGINNING ENDING
  DATE     DATE
BAY001
BAY002
BAY092
BAY093
BAY094
BAY095
BAY096
BAY097
BAY098
BAY099
BAY100
BAY101
BAY102
BAY103
BAY104
BAY105
BAY106
BAY107
BAY108
BAY109
BAY110
BAY111
BAY112
BAY113
BAY114
BAY115
BAY116
BAY117
BAY118
BAY119
BAY120
_
=
_
=
=
=
=
=
=
=
ss
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
==
=
=
15JUN84
01JUL84
•
01JAN89
01FEB89
01MAR89
16MAR89
01APR89
16APR89
01MAY89
15MAY89
01JUN89
16JUN89
01JUL89
16JUL89
01AUG89
17AUG89
01SEP89
16SEP89
01OCT89
16OCT89
01NOV89
01DEC89
01JAN90
01FEB90
01MAR90
16MAR90
01APR90
16APR90
01MAY90
16MAY90.
01JUN90
- 30JUN84
- 15JUL84
- 31JAN89
- 28FEB89
- 15MAR89
- 31MAR89
- 15APR89
- 30APR89
- 14MAY89
- 31MAY89
- 15JUN89
- 30JUN89
- 15JUL89
- 31JUL89
- 16AUG89
- 31AUG89
- 15SEP89
- 30SEP89
- 15OCT89
- 31OCT89
- 30NOV89
- 31DEC89
- 31JAN90
- 28FEB90
- 15MAR90
- 31MAR90
- 15APR90
- 30APR90
- 15MAY90
- 31MAY90
1 ^.TITTI'Mt
                               G-7

-------
BAY121 =  16JUN90 - 30JUN90
BAY122 =  01JUL90 - 15JUL90
BAY123 =  16JUL90 - 31JUL90
BAY124 =  01AUG90 - 16AUG90
BAY125 =  17AUG90 - 31AUG90
BAY126 =  01SEP90 - 15SEP90
BAY127 =  16SEP90 - 30SEP90
BAY128 =  010CT90 - 150CT90
BAY129 =  160CT90 - 310CT90
BAY130 =  01NOV90 - 30NOV90
BAY131 =  01DEC90 - 31DEC90
                x-i	 i

-------
                             TABLE 6:

                    CHESAPEAKE BAY RIVER CODES
The following is a list of values for river codes in the Chesapeake
Bay.

                    'CHESAPEAKE BAY  '
                    •' MOB JACK_BAY     '
                    'BIG_ANNEMESSEX  '
                    'BOHEMIA         '
                    'CHESTER         '
                    'CHOPTANK        '
                    'EAST_BAY        '
                    ' ELK             '
                    'MANOKIN         '
                    'NANTICOKE       '
                    'NORTHEAST       '
                    'POCOMOKE        '
                    'SASSAFRAS       '
                    'TANGIER         '
                    'TANGIER_S       '
                    'WICOMICO        '
                    'JAMES           '
                    'PATUXENT        '
                    'ANACOSTIA       '
                    'ANTIETAM_CR     '
                    'CATOCTIN_CR     '
                    'MONOCACY        '
                    'POTOMAC         '
                    'ROCK_CREEK      '
                    'YOUGHIOGHENY    '
                    'CORROTOMAN      '
                    'RAPPAHANNOCK    '
                    'CHICKIES_CR     '
                    'CODORUS         '
                    'CONESTOGA       '
                    'CONEWAGO        '
                    'CONOCOCHEAGUE  '
                    'CONODOGUINET    '
                    ' JUNIATA         '
                    'MAHANOY         '
                    'MAHANTANG       '
                    'MILL            '
                    'NORTH_BRANCH    '
                    ' PAXTON

-------
'PENNS          '
'PEQUEA         '
'SHAMOKIN       '
'SHERMANS       '
'STONY          '
'SUSQUEHANNA
' SWATARA        '
'WEST_BRANCH    '
'YELLOW_BREECHES'
'YOUNG_WOMANS   '
'BACK           '
'BUSH           '
' GUNPOWDER      '
' MAGOTHY        '
'MIDDLE         '
'PATAPSCO    -   '
'RHODE          '
'SEVERN         '
'SOUTH          '
'MATTAPONI      '
'PAMUNKEY       '
'YORK           '
           G-1U

-------
                            TABLE  7:

           CHESAPEAKE BAY PROGRAM  SEGMENT DESIGNATION
The following codes identify the  Chesapeake Bay segment from which
the sample was taken.  The acceptable codes are:
      'CB1'
      'CB2'
      'CB3'

      'CB4'
      'CB5'

      'CB6'
      'CB7'
      'CB8'
      'ET1'
      'ET2'
      'ET3'
      'ET4'
      'ET5'
      'ET6'
      'ET7'
      'ET8'
      'ET9'
      'ET10'
      'EE1'
      'EE2'
      'EE3f
      'LEI'
      'LE2'
      'LE3'
      'LE4'
      'LE5'
      'RET1'

      'RET2'

      'RET3'

      'RET4'

      'RET5'
= Susquehanna Flats
= Upper portion of the Chesapeake Bay mainstem
= Upper-most estuarine zone  in mainstem  of  the
  Chesapeake Bay
= Upper portion of the central Chesapeake Bay mainstem
= Central portion of the mainstem of the Chesapeake
  Bay
= Lower west-central mainstem of the Chesapeake  Bay
= Lower east-central mainstem of the Chesapeake  Bay
= Southern-most segment of the Chesapeake Bay
= Northeast River
= Elk  River and Bohemia River
= Sassafras River
— Chester River
= Choptank River
= Nanticoke River
= Wicomico River
= Manokin River
= Big  Annemessex River
= Pocomoke River
= Eastern Bay, Miles River,  and Wye River
= Choptank River, west of Castle Haven,  including Tred
  Avon River, Broad Creek, Harris Creek,  and the
  Little Choptank
= Tangier and Pocomoke Sounds
                     - Lower estuarine  segment
                     - Lower estuarine  segment
  Patuxent River
  Potomac River
= Rappahannock River  -  Lower estuarine segment
= York River          -  Lower estuarine segment
= James River         -  Lower estuarine segment
= Patuxent River      -  Riverine-estuarine transition
                        zone
= Potomac River       -  Riverine-estuarine transition
                        zone
= Rappahannock River  -  Riverine-estuarine transition
                        zone
                      -  Riverine-estuarine transition
                        zone
                        Ri-°v i.ne-estuarine transition
= York River
= James River
                               G-ll

-------
'TF1'
'TF2'
'TF3'
'TF5'
'WT1'
'WT2'
'WT3'
'WT4'
'WT5'
'WT6'
'WT7'
'WT8'
'WE4'
zone
Tidal
Tidal
Patuxent River
Potomac River
Rappahannock River
York River
James River
Bush River
Gunpowder River
Middle River and Seneca Creek
Back River
Patapsco River
Magothy River
Severn River
South, Rhode, and West Rivers
Mobjack Bay
      freshwater segment
      freshwater segment
Tidal freshwater segment
Tidal freshwater segment
Tidal freshwater segment
                         G-12

-------
                             TABLE 8:

                          SAMPLING GEAR
Sampling gear collection code.

      1 = Hand Collection
      2 = Dredge
      3 = Artificial Substrate (Unspecified)
      4 = Diatometer Slides
      5 = Clarke -Bumpus Sampler
      6 = Plankton Trap (Unspecified)
      7 = Plankton Pump (Unspecified)
      8 = Plankton Net (Unspecified)
      9 = Plankton Net (500 micron mesh)
     10 = Plankton Net (No. 20 size-80 micron mesh)
     11 — Plankton Net (10 micron mesh)
     12 = Beam plankton line
     13 = Anchor Dredge
     14 = Hydraulic Grab  (1200 square centimeters)
     15 — Hand Core (45 square centimeters)
     16 = Post-Hole Digger  (200 square centimeters)
     17 = Ponar Grab  (200 square centimeters)
     18 = Ponar Grab  (1000 square centimeters)
     19 = Ponar Grab  (50 square centimeters,  .005  **2)
     20 = Box Corer Grab  (.018 m**2)
     21 = Van Veen Grab (.07 m**2)
     22 = Shipek Grab  (.04 m**2)
     23 = Seine Haul  (unspecified)
     24 = Smith-Macintire Grab (1000 square centimeters)
     25 = Seine Net (15 ft, 1/8 inch stretch mesh)
     26 = Seine Net (50 ft, 1/2 inch stretch mesh)
     27 = Seine Net (50 ft, 1/4 inch stretch mesh)
     28 = Seine Net (200  ft,  1/2  inch stretch mesh - net 200 x 20)
     29 = Seine Net (10 ft, 1/4 inch stretch mesh  -  net 10  x 4)
     30 = Trawl (unspecified)
     31 = Trawl (6 ft otter trawl, 1 inch  stretch  mesh  with 1/2
          inch cod end inner liner)
     32 = Trawl (25 ft otter trawl, 1 1/4  inch  stretch  mesh with
          1/2 inch cod end inner liner)
     33 = Trawl (15 ft semi -balloon)
     34 = Tucker Trawl (2 mm mesh 1 square meter)
     36 = Otter Trawl  (16 ft, 1/2 inch mesh,  semi-balloon)
     37 = Trawl (10 ft otter trawl, 1/4 inch  -  6.4 mm - mesh with
          500 um cod end liner)
     38 = Trawl (5 ft  midwater tra'-'i  1/
-------
     500 urn cod end liner)
39 = Reserved for Trawl Sample
40 = Trap Net (3 ft x 6 ft, 1/2 inch mesh, 50 ft lead)
42 = Eckman Dredge
43 = Cage
44 = Catfish Trap
45 = Crayfish Trap
46 = Crab Trap
47 = Animal Trap
48 = Hook and Line Fishing
49 = Dip Net
50 = Diver
54 = Pound Net
55 = Epifauna Panels
56-59 = Reserved
60 — Endico Current Meter
61 = Braincon Current Meter
62 = Sediment Trap Array (6 3"  x 30" cups, W.R. Boynton, CBL)
63 = Seine Net (50ft, 1/4 inch mesh - net 100 x 4ft)
64 = Bongo Net (unspecified)
65 = Purse Seine
66 = Fyke and Hoop Nets
67 = Pots
68 = Box Trap
69 = Push Net
70 = Great Lakes Shoal 1-2 inch
71 = Great Lakes Shoal 2-4 inch
72 = Great Lakes Shoal 4-7 inch
73 = Great Lakes Shoal 7-14 inch
74 = Beam Trawl
75-77 = Reserved
78 = Slat Traps
79 = Reserved
80 = Gill Nets
81-84 = Reserved
85 = Mid-Water Trawl (unspecified)
86 = Drift Gill Net Brails
87 = Drift Gill Net Flop
88 = Drift Gill Net Jugs
89 = Electrofishing
90 = Shore
91 = Pick
92 = Drift Gill Net  (unspecfied)
93 = Set Gill Net
94 = Bottom Trawl  (unspecifed)
95 = Fish House
96 = Van Veen Grab (0.1 sguar~ met<


                          G-14

-------
                            TABLE  9:

                           LIFE STAGE


Life stage codes for biological monitoring of fish and zooplankton.

     00 Egg (viable;  for non-viable eggs use '90')
     01 Yolk Sac
     02 Fin Fold
     03 Post Fin Fold (full development of second dorsal fin)
     04 Young of the Year -- year class 0
     05 Specimens in Year Class 1 or Older
     06 Juveniles and Adults
     07 Larvae, Juveniles, and Adults
     08 Larvae and Juveniles
     09 Reserved for Future Use
     10 Nauplii or Copepodites
     11 Nauplii
     12 Copepodite
     13 Orthonauplii Stage 1-3
     14 Metanauplii Stage 4-6
     15 Copepodite Stage 1-3
     16 Copepodite Stage 4-6
     17 Cypris Larvae
     18 Reserved for Future Use
     19 Copepod Eggs
     20 Nymph
     21 Pupae
     22 Pharate
     23 Instar
     24 Naiad
     25-29 Reserved for Future Use
     30 Prezoea
     31 Zoea
     32 Metazoea
     33 Megalops
     34-39 Reserved for Future Use
     40 Nauplii Stage 1
                               G-15

-------
                            TABLE 10:
                        MOAA SPECIES CODE
Reference the NOAA-NODC taxonomic  code  document #15 published in
August 1984.  For the user's convenience,  a subset of that code is
provided here.
LATIN NAME

Vallisneria americana
Potamogeton pectinatus
Potamogeton perfoliatus
Ruppia maritima
Zostera marina
Stylochus ellipticus
Micrura leidyi
Malacobdella grossa
Nereis succinea
Polydora ligni
Scolecolepides viridis
Heteromastus filiformis
Hydroides dianthus
Crassostrea virginica
Mercenaria mercenaria
Mya arenaria
Balanus improvisus
Neomysis americana
Cyathura polita
Lironeca ovalis
COMMON NAME

Wildcelery
Sago pondweed
Redhead grass
Widgeongrass
Eelgrass
Oyster flatworm
Red ribbon worm
Leech ribbon worm
Common clamworm
Whip mud worm
Red-gilled mud worm
Capitellid thread worm
Limy tube worm
American oyster
Hard shell clam
Soft shell clam
Bay barnacle
Bay opossum shrimp
Slender isopod
Fish-gill isopod
     NODC
TAXONOMIC CODE

  3305010301
  3306050105
  3306050106
  3306060101
  3306080201
  3906030101
  4303020505
  4308010101
  5001240410
  5001430411
  5001430602
  5001600201
  5001730901
  5510020102
  5515471201
  5517010201
  6134020114
  6153011508
  6160010201
  6161060301
                               G-16

-------
                            TABLE 11:

                   COMPREHENSIVE  SAMPLE MEDIA
This table  is used for  specific sample identification in gamma
analysis.
             Water                                            000
               Fresh (less than 1 ppt.)                        001
               Salt (greater than 1 ppt.)                      002
               Radwaste                                       003
               EPA mixed gamma crosscheck                     004
               EPA mixed gamma and beta crosscheck            005
               EPA iodine - 131 crosscheck                    006
               Rainwater                                      007
               Point Source/Effluent                          008

             Sediment                                         100
               Predominately clay  (particle size
                 greater than 600)                            101
               Predominately sand  (particle size
                 less than 500)                               102
               Clayey sand  (particle size between
                 500 and 550)                                 103
               Sandy clay  (particle size between
                 550 and 600)                                 104
               Particulates                                   105
                               G-17

-------
                            TABLE 12:

                   PARTICLE SIZE CLASSIFICATION
Particle size classification can be designated for both Shepard's
class and PHI class using the following codes.
'SO '
'SI '
'S2 '
'S3 '
'S4 '
'S5 '
'S6 '
'S7 '
'S8 '
'S9 '
'P-2 '
'P-l '
'PO '
'PI. 5'
'P2 '
'P2.5'
'P3 '
'P3.5'
'P4 '
'P4.5'
'P5 '
'P6 '
'P7 '
'P8 '
'P9 '
'P10 '
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
Shepards class
PHI class -2
PHI class -1
PHI class 0
PHI class 1.5
PHI class 2
PHI class 2.5
PHI class 3
PHI class 3.5
PHI class 4
PHI class 4.5
PHI class 5
PHI class 6
PHI class 7
PHI class 8
PHI class 9
PHI class 10
0
1
2
3
4
5
6
7
8
9
















                               G-ll

-------
                            TABLE 13:
                          MEDIUM CODES
ATMOSDEP = atmospheric deposition
GRNDH2O  = groundwater
LANDAPPL = pesticide land application
MICROL   = microlayer
RUNOFF   = urban runoff
SEDCOR   = sediment, core sample
SEDSAM   = sediment, bottom surface
SEDTRP   = sediment trap
SPECIES  = a living resource sample; refer to SPECVAFK
SPILL    = shipping spills
STINDEFF = State surface water effluent
STMUNEFF = State municipal surface water effluent
TRIFUG   = Toxic Release Inventory  (TRI) fugitive air
TRINDEFF = TRI surface water effluent
TRIOFFOT = TRI off-site to other entity
TRIOFFPW = TRI off-site to publicly owned treatment works  (POTW)
TRIONSTE = TRI on-site land
TRISTACK = TRI stack air
TRIUIC   = TRI underground injection
WATCOL   = water column

-------
Description


Appomattox

James

Patuxent

Potomac

Rappahannock

Susquehanna


York
                            TABLE 14:

                     MODELSEG  TABLE  (part of)
                   Above Fall  Line WSM  Segments
Segment Number


300  310

265  270  280  290

330  340

160  170  175  180  190  200  210   220
230

 10   20   30   40   50
 90  100  110  120  140

235  249  250  260
60
70
80
                               G-20

-------
                            TABLE 15:

                    MODELSEG TABLE  (part: of)
                  Below Fall Line WSM Segments
Description
Segment Name
            Segment Number
Eastern Shore MD+PA Coastal_l
                    Bohemia
                    Choptank
                    Nanticoke
                    Pocomoke
Eastern Shore VA

James



Patuxent

Potomac


Rappahannock


Western Shore MD



York
Coastal 4
Coastal_ll  360  450
Chester     370  380
Wye         400  390
Wicomico    410  420
            430

            440
Chickahominy James       610  600
Nansemond    Elizabeth   620  630
Coastal 9                640
Patuxent                 500

Low_Potomac  Anacostia   530
Occoquan                 550
                 540
Rappahannock Gt_Wicomico 560  580
Coastal 8                570
Coastal_5
Gunpowder
Patapsco

York
Coastal_6   520  460
Balt_Harbor 470  480
Severn      490  510

            590
                               G-21

-------
        APPENDIX H:




DATA PROCESSING REQUEST FORM

-------
                                                REQUEST NO
                         FY92  CSC DATA REQUEST FORM
                                 (VERSION 7)
                       PART 1 (Completed by Requestor or CSC  staff)
REQUEST DATE:

REQUESTOR:
                      DATE  REQUIRED:
        ORGANIZATION:
                                     ADDRESS:
TELEPHONE #:
REQUEST TYPE  (ASSIGNED BY ED STIGALL OR SUBCOMMITTEE COORDINATOR)

I.    INTERNAL SUPPORT                           IV.   MONITORING SUBC. SUPPORT
II.
COMPUTER OPERATIONS
SYSTEM MANAGEMENT
USER SUPPORT
DATA REQUEST
EPA STATISTICAL WORK
EPA GIS SUPPORT
EPA TECHNICAL WRITING

MODELING SUBCOMMITTEE  SUPPORT

WATERSHED MODEL SUPPORT
3-D MODEL SUPPORT
MODEL POINT SOURCE SUPPORT
GENERAL POINT SOURCE SUPPORT
MODELING GIS SUPPORT
MODELING TECHNICAL WRITING
V.
III.  TOXICS SUBCOMMITTEE  SUPPORT
      TOXICS DATA ACQUISITION
      TOXICS PROGRAM SUPPORT
      TOXICS DATA ANALYSIS
      TOXICS GIS SUPPORT
      TOXICS TECHNICAL WRITING
                                                 VI.
VII.  CSTC SUPPORT
      BAY BAROMETER
      OTHER CSTC SUPPORT
MONITORING DATA  PROCESSING
MONITORING PROG.  SUPPORT
MONITORING DATA  ANALYSIS
CITIZEN MONITORING
HISTORICAL DATA  ACQUISITION
MONITORING GIS SUPPORT
MONITORING TECHNICAL WRITING

LIVING RESOURCE  SUBC.  SUPPORT

LR 91 REEVALUATION  WORKGROUP
LR MONITORING WORKGROUP
SAV WORKGROUP
WATERFOWL MANAGEMENT WORKGROUP
ECOLOGICAL VALUABLE SPEC W/G
FISH PASSAGE WORKGROUP
LR TECHNICAL WRITING

NFS SUBCOMMITTEE SUPPORT

NPS MODELING SUPPORT
COEEP MAINTENANCE
NPS GIS SUPPORT
NPS TECHNICAL WRITING
                                                 DATA BASE DEVELOPMENT
DESCRIPTION OF KORK TO  BE  PERFORMED
                                            H-l

-------
                             PART 2  (COMPLETED BY CSC STATE")
DATE RECEIVED:
                                     REFERRED TO:
ESTIMATED RESOURCES/MATERIALS:

	 Hours of Technical Work

   •    Hours of Operations Work

j	 Hours of Data Entry

	 Pages of Printouts:
DATA LOCATION:
STRATEGY/ACTION:
       No of Transparencies

       Plotter Pens/ Ink etc

       Number of Plots

       Other
                                PART 3  (COMPLETED BY EPA)
EPA APPROVAL:
EPA APPROVAL FOR DATA RELEASE:
ACTUAL RESOURCES/MATERIALS:
              DATE:

              DATE:
                                PART 4  (COMPLETED BY CSC)
       Hours of Technical Work
       Hours of Operations Work
       Hours of Data Entry
       Other

       TOTAL
DATE COMPLETED:
Number of Tapes/Diskettes: 	
Source of Tapes/Diskettes: CBP
                           Others
Pages of Printouts: 	
Number of Plots:
REVIEWED BY:
                                            H-2

-------
        OPERATIONS REQUEST FORM
             FEBRUARY 1991
              (VERSION 8)
                                         FOR CSC ACCOUNTING ONLY:
                              Agency Code:
                              Total Hours:
                              Completed By:
                              Date Completed:
PART I:  MANDATORY INFORMATION
A.  DATE REQUESTED:

C.  REQUESTED BY: _

E.  TELEPHONE #:
                             B.  DATE NEEDED:

                             D.  ORGANIZATION:

                             F.  ADDRESS:
PART II:  SELECT ONE OF THE FOLLOWING TYPES OF REQUESTS AND  COMPLETE THE
          INFORMATION IN THE SPECIFIED SECTIONS
A.

B.

C.

D.
PART III:
A.
B.
C.
D.
E.
    CREATE A TAPE (COMPLETE PARTS III AND IV)

    ADD TO EXISTING TMS TAPE  (COMPLETE PARTS III AND  IV)

    READ IN A TAPE (COMPLETE PARTS III AND IV)

    RESTORE LOST FILES  (COMPLETE PART V)
FORMAT INFORMATION - SELECT ONE OF THE FOLLOWING AND  COMPLETE
REQUESTED INFORMATION
    VAX BACKUP
Save Set Name**:
Density:
                                       1600 BPI
                   TMS Tape f(if existing tape):

    SAS TRANSPORT  Density:  	 1600 BPI
                   TMS Tape 9 (if existing tape) :
                                                                       6250 BPI
                                         6250  BPI
    FOREIGN TAPE
Record Length:
Format:  	
Density:
 Block Size:
                                                   EBCDIC
                                                   1600  BPI
                                                            ASCII
                                                            6250 BPI
                              TMS Tape  #  (if existing  tape):
    VAX COPY TAPE  Tape Label:
                   Density: 	
                                                   1600  BPI
    PC DISKETTE
Disk Density:
360K
6250 BPI

  1.2 MB
                              Software  used  to write/read disk:
                                                             Version f:
**A SAVE SET NAME is required to identify  a  group  of  files written to tape.
  The extension must be  .BCK with a  length,  excluding the extension,  of no
  more than 13 characters.
                                      H-3

-------
PART  IV:   INFORMATION  REQUIRED FOR READING AND WRITING TAPES
A.  DIRECTORY DATA IS  TO COPIED TO OR FROM:
B.  FILE NAMES TO BE COPIED TO OR FROM DIRECTORY SPECIFIED ABOVE:
C.  DOCUMENTATION TO DESCRIBE DATA WRITTEN TO TAPE:
D.  TAPE WILL/SHOULD  BE:
    PICKED UP:   	  BY:
    MAILED BACK:          TO:
    ARCHIVED:    	  CATEGORY: 	 DATA (T)  	 DATA REQUEST  (R)
                                     	 SYSTEM (System Software)  (S)
                                     	 USER (U)  	 OTHER
PART V:   INFORMATION  REQUIRED FOR RESTORING  LOST FILES FROM SYSTEM BACKUPS
A.  FILE NAME TO BE RESTORED:
B.  DIRECTORY NAME WHERE FILE WAS LOCATED:
C.  APPROXIMATE DATE  FILE WAS CREATED OR LAST MODIFIED:
D.  DIRECTORY NAME WHERE FILE IS TO BE PLACED:
PART VI:   PLEASE LIST  ANY ADDITIONAL INFORMATION THAT WOULD HELP  TO PERFORM
           YOUR REQUEST
PART  VII:   OPERATOR NOTES (TO BE COMPLETED  BY CBP OPERATOR)
                                        H-4

-------
     APPENDIX 6:




DATA DICTIONARY TABLES

-------
                             TABLE 1:

                 FLUX/SEDIMENTATION CALCULATIONS
CHLA_FXD = CHLA * SAMVOL_L *  (219.3  (cm**2/m**2) )  / TIME_SUM *
           TDEPTH / SDEPTH

PHOS_FXD = PROS * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

POC_FXD  = POC * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

PON_FXD  = PON * SAMVOL_L *  (219.3  (cm**2/m**2))  / TIME_SUM *
           TDEPTH / SDEPTH

SESJFXD  = SES_MG * SAMVOL_L  *  (219.3  (cm**2/m**2) ) / TIME_SUM *
           TDEPTH / SDEPTH

SPEC_FXD = CNT * (DVOLJML / EXVOL_ML)  /  TIME_SUM * 219.3 *
           (TDEPTH / SDEPTH)
                                G-l

-------
                             TABLE 2
            CAS NUMBERING CODE AND CAS LABEL  (CAS PK)
For the user's convenience,  a representative sample  of CAS numbers
is included here.
               007429905
               000056553
               007440439
               007440508
               007439896
               000206440
               007439976
               000005889
               000091203
               007439921
               000085018
               000129000
               007440315
               007440566
ALUMINUM
BENZ [A] ANTHRACENE
CADMIUM
COPPER
IRON
FLUORANTHENE
MERCURY
LINDANE
NAPTHALENE
LEAD
PHENANTHRENE
PYRENE
TIN
ZINC
                               G-2

-------
                             TABLE 3

                     ANALYSIS PROBLEM CODES
The following letter codes describe the problem associated with a
questionable parameter value.  The valid entries for this field are
as follows:

      'A'  • Laboratory accident
      'B'  = Interference
      'C'  - Mechanical/materials failure
      'D'  = Insufficient sample
      'E'  = Sample received too late
      'F'  = Sample too old when received
      'H'  « Analysis run by another lab
      'J'  = Wrong type sample (e.g., filtered sample requesting
             TSS)
      'K'  = Sample frozen when received (results questionable)
      'M'  = Sample received warm
      'N'  = Sample lost
      'P'  = Lost results
      'R'  = Sample contaminated
      'S'  — Sample container broken during analysis
      "Tr  = No phaeophytin in sample
      'U'  = Matrix problem resulting from the interrelationship
             between variables such as pH and ammonia
      'V  = Sample results rejected due to QA/QC criteria
      'W  = Duplicate results for all parameters
      'X'  = Sample not preserved properly
      'Y'  = Analyzed in duplicate, results below detection limit
      'Z'  = Analyzed by method of standard additions
      'AA' = Sample thawed when received
      'BB' - Torn filter pad
      'CC' = Pad unfolded in foil pouch
      'DD' = Assumed sample size (sample size not reported)
           = Foil pouch very wet when received from field,
             therefore poor replication between pads, mean reported
           ™ Poor replication between pads, mean reported
      'GG' = Sample received after  holding time, therefore results
             are questionable
      'HH' = Sample not taken
      'JJ' - Amount filtered not recorded (therefore calculation
             could not be done)
      'KK' «= Parameter test not required for study
      'LL' B Mislabeled
      'MM' = Over 20%  of sample adhered to pouch and outside of pad


                               G-3

-------
     = Data for this variable are considered non-
       interpretable
'NN'  = Particulates found in filtered sample
'PP'  = Assvimed sample volume (pouch volume differed from data
       sheet volume pouch volume used)
'QQ'  — Although value exceeds a theoretically equivalent or
       greater value (e.g., PO4F>TDP),  the excess is within
       precision of analytical techniques and therefore not
       statistically significant
'KR'  = No sample received
' SS'  — Sample rejected due to unusually high suspended
       sediment concentration
'TT'  = Instrument failure on board research vessel
'UU'  = Analysis discontinued
'W  = Station was not sampled due to bad weather conditions,
       research vessel mechanical failure,  or failure of
       state highway bridges to open or close
'WW'  = High turbidity/high optical density (GT .1)  at 750
       nanometers;  actual value recorded; may be acceptable
       if high CHLA
'XX'  = Sampling for this variable not included in the
       monitoring program at this time or was not monitored
       during a specific cruise
                         G-4

-------
                             TABLE 4:
                           METHOD CODES
Descriptions  of each  method may
Methods in CHESSEE.
be  found under  Documentation;
ALK101
BOD5F01
CHLAF03
CHLAF08
DISOXYF01
DOCF02
DOP101
FSS101
NH4104
NH4F05
NO2103
N02F05
N03105
N03F05
ALK102
CHLA101
CHLAF04
CONDF01
DISOXYF02
DOCF03
FCOLI101
FSSF01
NH4F01
NH4F06
NO2F01
NO3101
NO3F01
NO3F06
ALKF01
CHAL102
CHLAF05
DIN101
DOC101
DOCF04
FCOLI102
NH4101
NH4F02
NH4F07
NO2F02
NO3102
NO3F02
PHEA101
ALKF02
CHLAF01
CHLAF06
DIN102
DOC102
DON101
FCOLIF01
NH4102
NH4F03
N02101
N02F03
NO3103
N03F03
PHEA102
BOD5101
CHLAF02
CHLAF07
DISOXY101
DOCF01
DON102
FCOLIF02
NH4103
NH4F04
NO2102
NO2F04
NO3104
NO3F04
PHEAF01
     PHEAF02   PHEAF03   PHEAF04   PHEAF05   PHEAF06

     PHEAF07   PHEAF08   PHF01     PHF02     PHOSP101

     PO4F101   PO4F102   PO4F103

     PO4FF02   PO4FF03   PO4FF04

     PO4FF07   POC101    POC102    POCF01    PON101

     PON102    PONF01    SALINF01  SECCHIF01 SI101


                               G-5
 PO4F104    PO4FF01

 PO4FF05    PO4FF06

-------
SI102
SIF02
TCOLI101
TDN102
TDP103
TDPF04
TKNF102
TKNFF03
TKNW102
TKNWF03
TNI 03
TOCF03
TP103
TPF02
TPF07
TSSF04
. SI103
SIF03
TCOLIF01
TDN103
TDP104
TDPF05
TKNF103
TKNFF04
TKNW103
TKNWF04
TOC101
TOCF04
TP104
TPF03
TSS101
TSSF05
SI104
SIF04
TCOLIF02
TDNF01
TDPF01
TDPF06
TKNF104
TKNFF05
TKNW104
TKNWF05
TOC102
TOCF05
TP105
TPF04
TSSF01
TSSF06
SI105
SIF05
TCOLIF03
TDP101
TDPF02
TDPF07
TKNFF01
TKNFF06
TKNWF01
TNI 01
TOCF01
TP101
TP106
TPF05
TSSF02
TVS101
SIF01
SOE101
TDN101
TDP102
TDPF03
TKNF101
TKNFF02
TKNW101
TKNWF02
TNI 02
TOCF02
TP102
TPF01
TPF06
TSSF03
WTEMPF01
G-6

-------
                            TABLE 5:

                     CRUISE NUMBER AND DATES
This alpha-numeric code  identifies  the cruise to  which the data
observation belongs.   Cruise identification is useful for grouping
data that are collected over a range of sample dates, but which are
considered data for a specific sampling period.  The current values
for this field are as follows:
               CRUISE
BEGINNING ENDING
  DATE     DATE
BAY001 =
BAY002 =
•
BAY092 =
BAY093 =
BAY094 =
BAY095 =
BAY096 =
BAY097 =
BAY098 =
BAY099 =
BAY100 -
BAY101 =
BAY102 =
BAY103 =
BAY104 =
BAY105 =
BAY106 =
BAY107 =
BAY108 =
BAY109 -
BAY110 =
BAY111 »
BAY112 =
BAY113 =
BAY114 =
BAY115 =
BAY116 =
BAY117 =
BAY118 =
BAY119 =
BAY120 =
15JUN84 -
01JUL84 -
01JAN89 -
01FEB89 -
01MAR89 -
16MAR89 -
01 APRS 9 -
16APR89 -
01MAY89 -
15MAY89 -
01JUN89 -
16JUN89 -
01JUL89 -
16JUL89 -
01AUG89 -
17AUG89 -
01SEP89 -
16SEP89 -
01OCT89 -
160CT89 -
01NOV89 -
01DEC89 -
01JAN90 -
01FEB90 -
01MAR90 -
16MAR90 -
01APR90 -
16APR90 -
01MAY90 -
16MAY90 -
01JUN90 -
30JUN84
15JUL84
31JAN89
28FEB89
15MAR89
31MAR89
15APR89
30APR89
14MAY89
31MAY89
15JUN89
30JUN89
15JUL89
31JUL89
16AUG89
31AUG89
15SEP89
30SEP89
15OCT89
310CT89
30NOV89
31DEC89
31JAN90
28FEB90
15MAR90
31MAR90
15APR90
30APR90
15MAY90
31MAY90
15JUN90
                               G-7

-------
BAY121 =  16JUN90 - 30JUN90
BAY122 =  01JUL90 - 15JUL90
BAY123 =  16JUL90 - 31JUL90
BAY124 =  01AUG90 - 16AUG90
BAY125 =  17AUG90 - 31AUG90
BAY126 =  01SEP90 - 15SEP90
BAY127 =  16SEP90 - 30SEP90
BAY128 =  01OCT90 - 15OCT90
BAY129 =  16OCT90 - 31OCT90
BAY130 =  01NOV90 - 30NOV90
BAY131 =  01DEC90 - 31DEC90
                G-8

-------
                             TABLE 6:

                    CHESAPEAKE BAY RIVER CODES
The following is a list of values for river codes in the Chesapeake
Bay.

                    'CHESAPEAKE BAY  '
                    'MOBJACK_BAY     '
                    'BIG_ANNEMESSEX  '
                    'BOHEMIA         '
                    'CHESTER         '
                    'CHOPTANK        '
                    ' EAST_BAY        '
                    'ELK             '
                    'MANORIN         '
                    'NANTICOKE       '
                    'NORTHEAST       '
                    'POCOMOKE        '
                    'SASSAFRAS       '
                    'TANGIER         '
                    'TANGIER_S       '
                    'WICOMICO        '
                    'JAMES           '
                    'PATUXENT        '
                    'ANACOSTIA       '
                    'ANTIETAM_CR     '
                    'CATOCTIN_CR     '
                    'MONOCACY        '
                    'POTOMAC         '
                    'ROCK_CREEK      '
                    'YOUGHIOGHENY    '
                    'CORROTOMAN      '
                    'RAPPAHANNOCK    '
                    'CHICKIES_CR     '
                    'CODORUS         '
                    'CONESTOGA       '
                    'CONEWAGO        '
                    'CONOCOCHEAGUE  '
                    'CONODOGUINET    '
                    'JUNIATA         '
                    'MAHANOY         '
                    'MAHANTANG       '
                    'MILL            '
                    'NORTH_BRANCH    '
                    'PAXTON         '


                               G-9

-------
'PENNS           '
'PEQUEA          '
' SHAMOKIN        '
'SHERMANS        '
'STONY           '
'SUSQUEHANNA     '
' SWATARA         '
'WEST_BRANCH     '
'YELLOW_BREECHES'
'YOUNG_WOMANS    '
'BACK            '
'BUSH            '
' GUNPOWDER       '
' MAGOTHY         '
'MIDDLE          '
'PATAPSCO        '
'RHODE           '
'SEVERN          '
'SOUTH           '
'MATTAPONI       '
'PAMUNKEY        '
'YORK            '
           G-10

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                            TABLE 7
           CHESAPEAKE BAY PROGRAM  SEGMENT DESIGNATION
The following codes identify the Chesapeake Bay segment from which
the sample was taken.  The acceptable codes are:
      'CB1'
      'CB2'
      'CB3'

      'CB4'
      'CB5'

      'CB6'
      'CB7'
      'CB8'
      'ET1'
      'ET2'
      'ET3'
      'ET4'
      'ET5'
      'ET6'
      'ET7'
      'ET8'
      'ET9'
      'ET10'
      'EE1'
      'EE2'
      'EE3'
      'LEI'
      'LE2'
      'LE3'
      'LE4'
      'LE5'
      'RET1'

      'RET2'

      'RET3'
= Susquehanna Flats
= Upper portion of the Chesapeake  Bay mainstem
= Upper-most estuarine zone  in mainstem  of  the
  Chesapeake Bay
= Upper portion of the central Chesapeake Bay mainstem
= Central portion of the mainstem  of the Chesapeake
  Bay
= Lower west-central mainstem of the Chesapeake Bay
= Lower east-central mainstem of the Chesapeake Bay
= Southern-most segment of the Chesapeake Bay
= Northeast River
= Elk  River and Bohemia River
= Sassafras River
= Chester River
= Choptank River
= Nanticoke River
= Wicomico River
= Manokin River
= Big  Annemessex River
= Pocomoke River
= Eastern Bay, Miles River,  and Wye River
= Choptank River, west of Castle Haven,  including Tred
  Avon River, Broad Creek, Harris  Creek, and the
  Little Choptank
= Tangier and Pocomoke Sounds
                     - Lower estuarine
                     - Lower estuarine
= Patuxent River
= Potomac River
= Rappahannock River -
= York River
= James River
= Patuxent River

= Potomac River

= Rappahannock River -
       'RET4' = York River
       RET5'
   James  River
                segment
                segment
Lower estuarine segment
Lower estuarine segment
Lower estuarine segment
Riverine-estuarine transition
zone
Riverine-estuarine transition
zone
Riverine-estuarine transition
zone
Riverine-estuarine transition
zone
Riverine-estuarine transition
                               G-ll

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'TF1'
'TF2'
'TF3'
'TF4'
'TF5'
'WT1'
'WT2'
'WT3'
'WT4'
'WT5'
'WT6'
'WT7'
'WT8'
'WE4'
Patuxent River
Potomac River
Rappahannock River
York River
James River
Bush River
Gunpowder River
Middle River and Seneca Creek
Back River
Patapsco River
Magothy River
Severn River
South, Rhode, and West Rivers
Mobjack Bay
  zone
- Tidal freshwater segment
- Tidal freshwater segment
- Tidal freshwater segment
- Tidal freshwater segment
- Tidal freshwater segment
                         G-12

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                             TABLE  8:

                          SAMPLING GEAR
Sampling gear collection code.

      1 = Hand Collection
      2 = Dredge
      3 = Artificial Substrate  (Unspecified)
      4 = Diatometer Slides
      5 = Clarke-Bumpus Sampler
      6 = Plankton Trap (Unspecified)
      7 = Plankton Pump (Unspecified)
      8 = Plankton Net  (Unspecified)
      9 = Plankton Net  (500 micron mesh)
     10 = Plankton Net  (No. 20 size-80 micron mesh)
     11 = Plankton Net  (10 micron mesh)
     12 = Beam plankton line
     13 = Anchor Dredge
     14 = Hydraulic Grab  (1200 square centimeters)
     15 = Hand Core (45 square centimeters)
     16 = Post-Hole Digger  (200 square centimeters)
     17 = Ponar Grab  (200 square centimeters)
     18 = Ponar Grab  (1000 square centimeters)
     19 = Ponar Grab  (50 square centimeters,  .005  **2)
     20 = Box Corer Grab  (.018 m**2)
     21 = Van Veen Grab (.07 m**2)
     22 - Shipek Grab  (.04 m**2)
     23 = Seine Haul  (unspecified)
     24 = Smith-Macintire Grab  (1000 square  centimeters)
     25 = Seine Net (15 ft, 1/8 inch stretch mesh)
     26 = Seine Net (50 ft, 1/2 inch stretch mesh)
     27 = Seine Net (50 ft, 1/4 inch stretch mesh)
     28 = Seine Net (200 ft, 1/2 inch stretch mesh - net 200 x 20)
     29 = Seine Net (10 ft, 1/4 inch stretch mesh  - net 10  x 4)
     30 = Trawl  (unspecified)
     31 = Trawl  (6 ft  otter trawl,  1 inch  stretch  mesh with 1/2
          inch cod end inner  liner)
     32 = Trawl  (25 ft  otter trawl, 1 1/4  inch  stretch mesh with
          1/2 inch cod end  inner liner)
     33 = Trawl  (15 ft  semi-balloon)
     34 = Tucker Trawl  (2 mm mesh 1 square meter)
     36 = Otter Trawl  (16 ft, 1/2 inch mesh,  semi-balloon)
     37 = Trawl  (10 ft  otter trawl, 1/4  inch -  6.4 mm - mesh with
          500 urn cod end  liner)
     38 = Trawl (5 ft  midwater trawl, 1/4 inch - 6.4 mm - mesh with


                               G-13

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     500 ;um cod end liner)
39 = Reserved for Trawl Sample
40 = Trap Net (3 ft x 6 ft, 1/2 inch mesh,  50 ft lead)
42 = Eckman Dredge
43 = Cage
44 = Catfish Trap
45 = Crayfish Trap
46 = Crab Trap
47 = Animal Trap
48 = Hook and Line Fishing
49 = Dip Net
50 = Diver
54 = Pound Net
55 = Epifauna Panels
56-59 = Reserved
60 = Endico Current Meter
61 = Braincon Current Meter
62 = Sediment Trap Array (6 3"  x 30" cups, W.R. Boynton, CBL)
63 = Seine Net  (50ft, 1/4 inch mesh - net 100 x 4ft)
64 = Bongo Net  (unspecified)
65 = Purse Seine
66 = Fyke and Hoop Nets
67 = Pots
68 = Box Trap
69 = Push Net
70 = Great Lakes Shoal 1-2 inch
71 = Great Lakes Shoal 2-4 inch
72 = Great Lakes Shoal 4-7 inch
73 = Great Lakes Shoal 7-14 inch
74 = Beam Trawl
75-77 = Reserved
78 = Slat Traps
79 = Reserved
80 = Gill Nets
81-84 = Reserved
85 = Mid-Water Trawl (unspecified)
86 = Drift Gill Net Brails
87 = Drift Gill Net Flop
88 = Drift Gill Net Jugs
89 = Electrofishing
90 = Shore
91 = Pick
92 = Drift Gill Net  (unspecfied)
93 = Set Gill Net
94 = Bottom Trawl  (unspecifed)
95 = Fish House
96 = Van Veen Grab  (0.1 square meters)


                          G-14

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                            TABLE  9:

                           LIFE  STAGE


Life stage codes for biological monitoring of fish and zooplankton.

     00 Egg (viable;  for non-viable eggs use '90')
     01 Yolk Sac
     02 Fin Fold
     03 Post Fin Fold (full development of second dorsal fin)
     04 Young of the Year -- year class 0
     05 Specimens in Year Class 1 or Older
     06 Juveniles and Adults
     07 Larvae, Juveniles, and Adults
     08 Larvae and Juveniles
     09 Reserved for Future Use
     10 Nauplii or Copepodites
     11 Nauplii
     12 Copepodite
     13 Orthonauplii Stage 1-3
     14 Metanauplii Stage 4-6
     15 Copepodite Stage 1-3
     16 Copepodite Stage 4-6
     17 Cypris Larvae
     18 Reserved for Future Use
     19 Copepod Eggs
     20 Nymph
     21 Pupae
     22 Pharate
     23 Instar
     24 Naiad
     25-29 Reserved for Future Use
     30 Prezoea
     31 Zoea
     32 Metazoea
     33 Megalops
     34-39 Reserved for Future Use
     40 Nauplii Stage 1
                               G-15

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                            TABLE 10:
                        NOAA SPECIES CODE
Reference the NOAA-NODC taxonomic  code  document f!5 published in
August 1984.  For the user's convenience,  a subset of that code is
provided here.
LATIN NAME

Vallisneria americana
Potamogeton pectinatus
Potamogeton perfoliatus
Ruppia maritima
Zostera marina
Stylochus ellipticus
Micrura leidyi
Malacobdella grossa
Nereis succinea
Polydora ligni
Scolecolepides viridis
Heteromastus filiformis
Hydroides dianthus
Crassostrea virginica
Mercenaria mercenaria
Mya arenaria
Balanus improvisus
Neomysis americana
Cyathura polita
Lironeca ovalis
COMMON NAME

Wildcelery
Sago pondweed
Redhead grass
Widgeongrass
Eelgrass
Oyster flatworm
Red ribbon worm
Leech ribbon worm
Common clamworm
Whip mud worm
Red-gilled mud worm
Capitellid thread worm
Limy tube worm
American oyster
Hard shell clam
Soft shell clam
Bay barnacle
Bay opossum shrimp
Slender isopod
Fish-gill isopod
     NODC
TAXONOMIC CODE

  3305010301
  3306050105
  3306050106
  3306060101
  3306080201
  3906030101
  4303020505
  4308010101
  5001240410
  5001430411
  5001430602
  5001600201
  5001730901
  5510020102
  5515471201
  5517010201
  6134020114
  6153011508
  6160010201
  6161060301
                               G-16

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                            TABLE 11:

                   COMPREHENSIVE  SAMPLE MEDIA
This table  is  used for  specific  sample identification  in gamma
analysis.
             Water                                            000
               Fresh (less than 1 ppt.)                        001
               Salt (greater than 1 ppt.)                     002
               Radwaste                                       003
               EPA mixed gamma crosscheck                     004
               EPA mixed gamma and beta crosscheck            005
               EPA iodine - 131 crosscheck                    006
               Rainwater                                      007
               Point Source/Effluent                          008

             Sediment                                         100
               Predominately clay  (particle size
                 greater than 600)                            101
               Predominately sand  (particle size
                 less than 500)                               102
               Clayey sand (particle size between
                 500 and 550)                                 103
               Sandy clay  (particle size between
                 550 and 600)                                 104
               Particulates                                   105
                               G-17

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                            TABLE 12:
                   PARTICLE SIZE CLASSIFICATION
Particle size classification can be designated for both Shepard's
class and PHI class using the following codes.
               'SO
               'SI
               'S2
               'S3
               'S4
               '55
               'S6
               'S7
               'S8
               'S9
               'P-2
               'P-l
               'PO
               'PI.5'
               'P2   '
               'P2.5'
               'P3   '
               'P3.5'
               'P4   '
               'P4.5'
               'P5
               'P6
               'P7
               'P8
               'P9
               'P10
Shepards class 0
Shepards class 1
Shepards class 2
Shepards class 3
Shepards class 4
Shepards class 5
Shepards class 6
Shepards class 7
Shepards class 8
Shepards class 9
PHI class -2
PHI class -1
PHI class 0
PHI class 1.5
PHI class 2
PHI class 2.5
PHI class 3
PHI class 3.5
PHI class 4
PHI class 4.5
PHI class 5
PHI class 6
PHI class 7
PHI class 8
PHI class 9
PHI class 10
                               G-18

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                            TABLE 13:

                          MEDIUM CODES
ATMOSDEP = atmospheric deposition
GRNDH2O  = groundwater
LANDAPPL = pesticide land application
MICROL   = microlayer
RUNOFF   = urban runoff
SEDCOR   = sediment, core sample
SEDSAM   = sediment, bottom surface
SEDTRP   = sediment trap
SPECIES  = a living resource sample; refer to SPECVAFK
SPILL    = shipping spills
STINDEFF = State surface water effluent
STMUNEFF = State municipal surface water effluent
TRIFUG   = Toxic Release Inventory  (TRI) fugitive air
TRINDEFF = TRI surface water effluent
TRIOFFOT = TRI off-site to other entity
TRIOFFPW = TRI off-site to publicly owned treatment works  (POTW)
TRIONSTE = TRI on-site land
TRISTACK = TRI stack air
TRIUIC   = TRI underground injection
WATCOL   = water column
                               G-19

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                            TABLE 14:

                     MODELSEG TABLE  (part  of)
                   Above Fall Line WSM Segments
Description
Segment Number
Appomattox

James

Patuxent

Potomac

Rappahannock

Susquehanna


York
300  310

265  270  280  290

330  340

160  170  175  180  190  200  210  220
230

 10   20   30
 90  100  110
 40   50
120  140
60
70
80
235  249  250  260
                               G-20

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                            TABLE 15:

                    MODELSEG TABLE  (part of)
                  Below Fall Line WSM Segments
Description
Segment Name
            Segment Number
Eastern Shore MD+PA Coastal_l
                    Bohemia
                    Choptank
                    Nanticoke
                    Pocomoke
Eastern Shore VA

James



Patuxent

Potomac


Rappahannock


Western Shore MD



York
             Coastal_ll
             Chester
             Wye
             Wicomico
                 450
                 380
                 390
                 420
Coastal_4

Chickahominy
Nansemond
Coastal_9

Patuxent

Low_Potomac
Occoquan

Rappahannock
Coastal_8

Coastal_5
Gunpowder
Patapsco

York
James
Elizabeth
Anacostia
360
370
400
410
430

440
610  600
620  630
640

500

530  540
550
Gt_Wicomico 560  580
            570

Coastal_6   520  460
Balt_Harbor 470  480
Severn      490  510

            590
                               G-21

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        APPENDIX H:




DATA PROCESSING REQUEST FORM

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                                                REQUEST NO
                        FY92  CSC DATA REQUEST FORM
                                 (VERSION 7)
REQUEST DATE:

REQUESTOR:
                 PART 1 (Completed by Requestor  or CSC staff)

                	   DATE  REQUIRED:  	 ORGANIZATION:
                                     ADDRESS:
TELEPHONE #:
REQUEST TYPE  (ASSIGNED BY ED  STIGALL OR SUBCOMMITTEE COORDINATOR)

I.    INTERNAL SUPPORT                           IV.   MONITORING SUBC.  SUPPORT
II.
COMPUTER OPERATIONS
SYSTEM MANAGEMENT
USER SUPPORT
DATA REQUEST
EPA STATISTICAL WORK
EPA GIS SUPPORT
EPA TECHNICAL WRITING

MODELING SUBCOMMITTEE  SUPPORT

WATERSHED MODEL SUPPORT
3-D MODEL SUPPORT
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GENERAL POINT SOURCE SUPPORT
MODELING GIS SUPPORT
MODELING TECHNICAL WRITING
III.  TOXICS SUBCOMMITTEE  SUPPORT
      TOXICS DATA ACQUISITION
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V.
                                                 VI.
VII.  CSTC SUPPORT
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      OTHER CSTC  SUPPORT
MONITORING DATA  PROCESSING
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MONITORING DATA  ANALYSIS
CITIZEN MONITORING
HISTORICAL DATA  ACQUISITION
MONITORING GIS SUPPORT
MONITORING TECHNICAL WRITING

LIVING RESOURCE  SUBC.  SUPPORT

LR 91 REEVALUATION WORKGROUP
LR MONITORING WORKGROUP
SAV WORKGROUP
WATERFOWL MANAGEMENT' WORKGROUP
ECOLOGICAL VALUABLE SPEC W/G
FISH PASSAGE WORKGROUP
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NPS SUBCOMMITTEE SUPPORT

NPS MODELING SUPPORT
COEEP MAINTENANCE
NPS GIS SUPPORT
NPS TECHNICAL WRITING
                                                 DATA  BASE DEVELOPMENT
DESCRIPTION OF TfORK TO BE PERFORMED
                                            H-l

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                             PART 2  (COMPLETED BY CSC STAFF)
DATE RECEIVED:
                                     REFERRED TO:
ESTIMATED RESOURCES/MATERIALS:

	 Hours of Technical Work

	 Hours of Operations Work

	 Hours of Data Entry

	 Pages of Printouts:

DATA LOCATION:
STRATEGY/ACTION:
       No of Transparencies

       Plotter Pens/ Ink etc

       Number of Plots

       Other
                                PART 3  (COMPLETED BY EPA)
EPA APPROVAL:
EPA APPROVAL FOR DATA RELEASE:
ACTUAL RESOURCES/MATERIALS:
              DATE:

              DATE:
                                PART 4  (COMPLETED BY CSC)
       Hours of Technical Work
       Hours of Operations Work
       Hours of Data Entry
       Other

       TOTAL
DATE COMPLETED:
Number of Tapes/Diskettes: 	
Source of Tapes/Diskettes: CBP
                           Others
Pages of Printouts: 	
Number of Plots:
REVIEWED BY:
                                            H-2

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        OPERATIONS REQUEST FORM
             FEBRUARY 1991
              (VERSION 8)
                                         FOR CSC ACCOUNTING ONLY:
                                Agency Code:
                                Total Hours:
                                Completed By:
                                Date Completed:
PART I:  MANDATORY INFORMATION
A.  DATE REQUESTED:

C.  REQUESTED BY: _

E.  TELEPHONE #:
                               B.   DATE NEEDED:

                               D.   ORGANIZATION:

                               F.   ADDRESS:
PART II:
A.

B.

C.

D.
 SELECT  ONE OF THE FOLLOWING TYPES OF REQUESTS AND COMPLETE THE
 INFORMATION IN THE SPECIFIED SECTIONS

	 CREATE A TAPE (COMPLETE PARTS III AND IV)

	 ADD TO EXISTING TMS TAPE (COMPLETE PARTS III AND IV)

	 READ IN A TAPE (COMPLETE PARTS III AND IV)

	 RESTORE LOST FILES (COMPLETE PART V)
PART III:
A.
B.
C.
D.
E.
  FORMAT INFORMATION - SELECT ONE OF THE FOLLOWING AND COMPLETE
  REQUESTED INFORMATION
      VAX BACKUP
Save Set Name**:
Density:
                                                   1600  BPI
                                                             6250 BPI
                     TMS Tape #(if existing tape):

      SAS TRANSPORT  Density: 	 1600 BPI
                     TMS Tape I  (if existing tape) :
                                         6250  BPI
      FOREIGN TAPE
Record Length:
Format:   	
Density:
                          Block  Size:
                                                   EBCDIC
                                                   1600 BPI
                                                             ASCII
                                                             6250 BPI
                              TMS Tape #(if existing tape):
      VAX COPY TAPE  Tape Label:
                     Density:  	
                                                   1600  BPI
      PC DISKETTE
                          360K
Disk Density: 	        	
Software used to write/read disk:
	              	          Version  #:
6250 BPI

  1.2 MB
**A SAVE SET NAME is required to identify  a  group of files written to tape.
  The extension must be  .BCK with a  length,  excluding the extension,  of no
  more than 13 characters.
                                      H-3

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PART IV:   INFORMATION REQUIRED  FOR READING AND WRITING TAPES
A.  DIRECTORY DATA IS TO COPIED TO OR FROM:
B.  FILE NAMES TO BE COPIED  TO OR FROM DIRECTORY SPECIFIED ABOVE:
C.  DOCUMENTATION TO DESCRIBE  DATA WRITTEN TO TAPE:
D.  TAPE  WILL/SHOULD BE:
    PICKED UP:    	  BY:
    MAILED BACK:         TO:
    ARCHIVED:     	  CATEGORY:  	 DATA  (T) 	 DATA REQUEST  (R)
                                     	 SYSTEM  (System  Software)  (S)
                                     	 USER  (U) 	 OTHER

PART V:   INFORMATION REQUIRED FOR RESTORING LOST FILES FROM SYSTEM BACKUPS
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PART VI:   PLEASE LIST ANY ADDITIONAL INFORMATION THAT WOULD  HELP TO PERFORM
           YOUR REQUEST
PART VII:   OPERATOR NOTES  (TO BE COMPLETED BY CBP OPERATOR)
                                       H-4

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