&EPA
United States
Environmental Protection
Agency
Office of Research and
Development
Washington, DC 20460
EPA/60-0/3-91/028
November 1990
National Surface Water
Survey
Eastern Lake Survey
Phase II
Northeastern Lakes,
Database Dictionary
LAKE
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EPA/600/3-91/028
November 1990
NATIONAL SURFACE WATER SURVEY:
EASTERN LAKE SURVEY - PHASE II NORTHEASTERN LAKES,
DATABASE DICTIONARY
Septembers, 1991
Prepared by
Michele M. Jimenez
Robert G. Johnson
Thomas C. Myers
Bonnie D. Miller
Mischell M. Lang
Alison K Pollack
Steven D. Reynolds
Systems Applications, Inc.
101 Lucas Valley Road
San Rafael, CA 94903
(415)472-4011
Thomas R. Whittier
Mantech Environmental Technologies, Inc.
Alan T. Herlihy
Utah State University
c/o U.S. EPA Environmental Research Laboratory
200 SW 35th St.
Corvallis, OR 97333
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ACKNOWLEDGMENTS
The research described in this database dictionary has been funded by the U.S. Environmental
Protection Agency. This document has been prepared at the EPA Environmental Research
Laboratory in Corvallis, Oregon, through contract no. 68-03-3439 with Systems Applications, Inc.
(Kilkelly Environmental Associates), contract no. 68-C8-0006 with ManTech Environmental
Technologies, Inc., and cooperative agreement no. CR815168 with Utah State University. The
document has been subjected to the Agency's peer and administrative review and approved for
publication. Mention of trade names or commercial products does not constitute endorsement or
recommendation for use.
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TABLE OF CONTENTS
Section Page
IMPORTANT NOTICE TO DATABASE USERS v
1. INTRODUCTION 1
Overview of the ELS-II Study 1
National Lake Survey - Phase I 1
Eastern Lake Survey - Phase II 2
Components of ELS-II Chemistry Surveys 4
Related ELS-II Activities 5
Purpose and Structure of This Report 5
2. DEVELOPMENT OF THE ELS-II DATABASE 7
Database Design 7
Creation of the Raw Data Sets 9
Creation of the verified Data Sets 10
Creation of the Validated Data Sets 10
Creation of the Enhanced (Final) Data Sets 11
Database Quality Control 11
3. DATA QUALITY ASSESSMENT 13
4. LIST OF VARIABLES 15
5. DEFINITIONS OF VARIABLES 31
6. DATA TAGS AND FLAGS 53
7. REFERENCES 59
APPENDIX A - Ancillary ELS-II Data Sets 61
APPENDIX B - ASCII Versions of ELS-II Data Sets 69
in
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LIST OF FIGURES
Figure Page
1-1 ELS-II study lakes 3
2-1 Flow diagram of the creation of the ELS-II databases 8
LIST OF TABLES
Table Page
2-1 ELS-II Major Variables 12
4-1 Variables in the Reduced Validated Spring Seasonal (SPSVBM01) Data Set 16
4-2 Variables in the Reduced Validated Summer Seasonal (SUSVBM01) Data Set .... 20
4-3 Variables in the Reduced Validated Fall Seasonal (FASVBM01) Data Set 26
5-1 Definition of Variables, U.S. EPA Eastern Lake Survey - Phase II 33
6-1 Tag Code Definitions, U.S. EPA Eastern Lake Survey- Phase II 54
6-2 Flag Code Definitions, U.S. EPA Eastern Lake Survey- Phase II 55
IV
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IMPORTANT NOTICE TO DATABASE USERS
The Eastern Lake Survey - Phase II (ELS-II) seasonal chemistry data sets available for public
distribution are DS3B, the reduced version of the validated database, and DS4A, the enhanced
(final) database. The enhanced database is the easiest to use for general analysis. It contains one
data line for each lakewater sample (replicates have been averaged) and the database has been
readied to make population estimates as described in Section 2. The validated database contains all the
unreplaced, unaveraged data, including some of the lakewater QA data. Database file names are:
Number of Variables
188
148
257
194
SEASON
Spring 1986
Summer 1986
Fall 1986
FILE NAME
SPSVBM01
SPSFIM01
SUSVBM01
SUSFIM01
FASVBM01
FASFIM01
DATA TYPE
Validated
Enhanced
Validated
Enhanced
Validated
Enhanced
n
234
146
301
270
265
239
199
156
Ancillary data sets from other ELS-II activities are discussed in Appendix A.
Due to problems discovered during the verification and validation of the Phase II data, the data verification
phase was repeated for selected analytes measured at both contract laboratories. The reevaluation resulted in a
new "modified verified" database. Based on our analyses, we make the following recommendations for data use:
1. Chloride (variable name= CL98/CL11) values measured at one of the analytical laboratories
should not be used. The suspect chloride values are present in the validated data set and the
associated chloride flag variable (CL1 IF) has a Ul code. In the enhanced data set (DS4A), these
suspect chloride values have been set to "missing" values. Population estimates for chloride
should not be made for the summer and spring (all fall values were measured at the other
analytical laboratory and are not considered suspect).
2. Field conductivity (variables - CxxxxlD and CON601D) measurements appear to be unreliable
and should be interpreted with caution. These measurements were not validated. There were no
problems detected with the laboratory conductivity (CONDI 1) values.
3. Total aluminum (ALTL11) data showed very poor agreement between laboratories and precision
was highly variable. Discretion is advised in interpreting the total aluminum data. Note, these
problems do not relate to total monomeric aluminum (ALD02), organic monomeric aluminum
(ALO_02), or inorganic monomeric aluminum (ALDI98).
4. Air-equilibrated dissolved inorganic carbon (DICE11) and air-equilibrated pH (PHEQ11) showed
some laboratory bias and poor precision at higher pH. It is strongly recommended that data users
use the closed-system dissolved inorganic carbon (DIC02) and pH (PH02) measurements for data
analysis.
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The ELS-II was designed to estimate characteristics of an explicitly defined target population of lakes in
the northeastern United States, not just the sampled lakes. To make inferences about the ELS-II population, it is
necessary to weight each sample by the ELS-II weighting factor (variable WT2T99; see Section 5). The ELS-II
sample weighting factor Indicates how many lakes in the ELS-II target population are represented by each
sample. Details on making ELS-II population estimates are given in the ELS-II final report (Herlihy et al., 1991).
VI
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SECTION 1
INTRODUCTION
Database management support for the U.S. Environmental Protection Agency's (EPA) Eastern Lake Survey - Phase
II (ELS-II) was provided by Systems Applications, Inc (SAI). The major functions of the database management program
were to create, update, distribute, and safeguard the various databases containing the information collected in the three
seasonal chemistry surveys (spring, summer, and fall) of lakes in the northeastern United States.
OVERVIEW OF THE ELS-II STUDY
In cooperation with the National Acid Precipitation Assessment Program (NAPAP), the EPA conducted the National
Surface Water Survey (NSWS), the purpose of which was to (1) document the chemical and biological status of lakes and
streams in regions of the United States potentially sensitive to acidic deposition, and (2) select regionally representative
surface waters so that changes in aquatic resources could be quantified through a long-term monitoring program. The
NSWS consisted of two phases:
• Phase I - a synoptic survey of lake and stream chemistry.
• Phase II - an evaluation of the chemical variability and biological status of a subset of lakes sampled in
Phase I.
The NSWS, conducted between 1984 and 1986, consisted of two major components: the National Lake Survey,
including the Eastern Lake Survey (Linthurst et al., 1986) and the Western Lake Survey (Landers et al., 1987), and the
National Stream Survey (Kaufmann et al., 1988). The primary emphasis of the NSWS was to develop a regional and
national perspective on the current status of surface water chemistry through the conduct of appropriate surveys rather than
a process-oriented, cause-and-effect research program.
National Lake Survey - Phase I
The objectives of Phase I of the National Lake Survey were:
To determine the percentage (by number and area) and location of lakes that are acidic in potentially
susceptible regions of the United States.
To assess the percentage (by number and area) and location of lakes that have low acid neutralizing
capacity (ANC) in potentially susceptible regions of the United States.
To select regionally characteristic lakes for further study in Phase II and for possible future long-term
monitoring.
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Phase I was specifically designed to provide the above information within definable confidence limits. Thus, a
particular strength of Phase I of the lake survey was the quantitative assessment of the chemical characteristics of lakes
within a probability sampling frame that allowed regional estimates to be made. An important limitation on these objectives
was that issues concerning temporal variability and biological resources could not be addressed. These issues are of
particular concern in Phase II of the lake survey.
Eastern Lake Survey - Phase II
The focus of ELS-II was on the northeastern United States (ELS Region 1). ELS-II involved the resampling of a
subset of lakes in the northeastern United States sampled in ELS-I to determine chemical variability and biological status
(Figure 1-1). Particular attention was given to lakes considered most susceptible to acidification. Chemical variability
among lakes was examined by sampling the lakes during the spring, summer, and fall of 1986. Furthermore, within-index
period variability was examined in the fall of 1986 to provide insight concerning the ability to detect chemical changes over
time, and the precision of the estimates of the number of acidic lakes from Phase I.
The primary objectives of ELS-II were to:
• Assess the sampling error associated with the ELSII fall index sample.
• Estimate the number of lakes with low acid neutralizing capacity (ANC) (i.e, potentially susceptible) that
are not acidic in the fall but that are acidic in other seasons.
• Establish seasonal water chemistry characteristics among lakes.
The ELS-II sample lakes were selected from those ELS-I lakes with ANC < 400 ^eq/L, depth
> 1.5 m, and low nitrogen or phosphorous concentrations, using a systematic random sample (see Herlihy et al., 1991). A
total of 147 statistically selected lakes were targeted for field visitation during ELS-II in the spring, summer, and fall of
1986. In addition to these seasonal surveys, a variability study was conducted during the fall seasonal survey. The Fall
Variability Study was designed to sample a subset of 50 of the ELS-II lakes at three different times at independently
selected locations believed to be the deepest point in a lake during the fall index period.
In situ measurements of pH, conductivity, temperature, and dissolved oxygen were made at 1.5 m below the surface
and 1.5 m above the bottom in all lakes. If the lake was stratified (temperature difference > 4°C), depth profiles of the in
situ measurements were made. Water samples for laboratory analyses were collected from the epilimnion at 1.5 m below the
surface in lakes more than 3 m deep. In lakes less than 3 m deep, epilimnetic samples were collected at 0.5 m below the
surface. ELS-II field operations are discussed in detail by Merritt and Sheppe (1988).
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---- Notiono! Luke Survey Boyndory
• Pliose II Survey Site
Figure 1-1. ELS-II study lakes.
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Components of ELS-II Chemistry Surveys
Spring Survey: Northeastern lakes in ELS-II were sampled once in the spring of 1986 in the epilimnion at the same
location on the lake as the fall index sample in ELSI. Lakes were sampled as soon after ice-out as practical. Water samples
were collected from 146 lakes between March 25 and May 3,1986.
Summer Survey: ELS-II lakes were sampled once in the epilimnion in the summer of 1986 at the same location on
the lake as the fall index sample in ELS-I. Water samples were collected from 147 lakes. In addition to the epilimnetic
sample, a hypolimnetic sample was collected in 123 of these lakes. Hypolimnetic samples were drawn from the middle of
the hypolimnion in stratified lakes, and at 1.5 m from the bottom in nonstratified lakes or lakes < 5 m deep. Hypolimnetic
samples were not collected from lakes < 3 m deep. Summer seasonal survey samples were collected between July 23 and
August 11, 1986.
Fall Survey and Variability Study: A variability study was conducted in the fall of 1986 along with the regular
seasonal survey to assess the within-season and within-lake spatial variability in lake chemistry. In addition to the fall
seasonal survey of ELS-I sample locations, a subset of 50 ELS-II lakes, in 2 groups of 25, were selected for sampling at 2
additional times during the fall index period at 2 independently selected locations on the lake. Independent field crews
selected the Fall Variability Study sampling locations at the time of the sample visits by locating a spot that appeared to be
the deepest part of the lake, according to lake shape, surrounding topography, and depth measurements, in the same way the
original ELS-I sites were chosen.
A set of 25 fall variability lakes was randomly selected from all ELS-II lakes in each of two geographic regions of the
northeastern United States: the Adirondacks and central and southeastern New England (Connecticut, Rhode Island,
Massachusetts, and southern New Hampshire). Due to inclement weather and logistic constraints, only 41 of the 50 selected
lakes (17 in the Adirondacks and 24 in central and southeastern New England) were sampled 3 times in the fall.
ELS-II lakes not included in the Fall Variability Study were sampled only once in the fall, at the same location as the
ELS-I sample. In total, water samples were collected from 152 lakes, 7 of which were special interest sites (lakes that were
not part of the statistical sample but are of interest in comparing ELS-II results with those of other researchers). Only
epilimnetic water samples were collected. All fall seasonal and variability study samples were collected between October 8
and November 14, 1986.
Water samples were transported from the sample site in coolers containing frozen chemical refrigerant packs that
maintained a temperature of approximately 4°C until they arrived at the central processing laboratory. Samples were
shipped by overnight courier to ensure their arrival at the processing laboratory in Las Vegas, Nevada, on the morning after
collection.
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In almost all cases, processing laboratory analyses were completed and samples were preserved and split into aliquots
within 36 hours after sampling. The samples were then shipped by overnight courier to a contracted analytical laboratory
for chemical analysis. Two analytical laboratories analyzed samples during ELS-II. One laboratory performed all the spring
analyses and the other performed all the fall analyses. Both laboratories analyzed summer samples.
RELATED ELS-II ACTIVITIES
The original plan for ELS-II called for fish studies in all the lakes for which chemical samples were to be collected.
However, as a result of funding limitations, it was decided to restrict the fish studies to a subset of lakes located in the
Upper Midwest (see Cusimano et al.,1990). The databases described in this dictionary contain only the lake chemistry data
for the northeast lakes. In addition to the data included in the seasonal ELS-II databases, other parameters were measured in
ELS-II lakes. In the summer, zooplankton data were collected in all the ELS-II lakes (described in Tessier and Horwitz,
1988, 1990). Also, summer trace metal and chlorophyll data were collected from ELS-II lakes. It was found, however, that
the measured trace metal concentrations in most lakes were below the system detection limit calculated from field blanks,
thus the data yielded little information. In addition, detailed bathymetric data were collected from 123 ELS-II lakes. Details
and file names of these ancillary ELS-II data sets are discussed in Appendix A. Note that the trace metal data were not
released due to the high detection limits.
PURPOSE AND STRUCTURE OF THIS REPORT
The purpose of this data dictionary is to provide information pertaining to the contents and structure of the ELS-II
chemistry database. The data dictionary does not describe the design, protocols, or findings of the study, which are
described in Herlihy et al. (1991). Section 2 describes the overall design and development of the ELS-II database. Section 3
is a summary of data quality. Section 4 identifies all variables in the database, and Section 5 provides detailed definitions of
the variables. Section 6 describes 'tags" and "flags," which are two types of data qualifiers.
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SECTION 2
DEVELOPMENT OF THE ELS-II DATABASE
Representatives from the Systems Applications, Inc. (SAI), data management staff, the U.S. EPA Environmental
Monitoring Systems Laboratory at Las Vegas (EMSL-Las Vegas), and the U.S. EPA Environmental Research Laboratory
in Corvallis (ERL-Corvallis) met to define the responsibilities of each organization in developing the ELS-II databases. A
data management plan for the ELS-II was developed from the meeting. The key steps in this activity are shown in Figure
2-1.
Conceptually, ELS-II data management was similar to that of Phase I of the Eastern and Western Lake Surveys
(Kanciruk et al., 1986,1987). The ELS-II database was developed using SAS software. Originally, all data files in the
ELS-II database were processed into SAS relational (tabular) data files and were uploaded to a Prime 750 minicomputer at
the Systems Applications offices. Data files were output to magnetic tape and transferred to the EPA's IBM mainframe
computer at the EPA's National Computer Center, Research Triangle Park, North Carolina. The quality assurance staff at
EMSL-Las Vegas and the project staff at ERL-Corvallis accessed the data sets at the National Computer Center.
Problems found during verification and validation necessitated a reverification of the ELS-II chemistry data sets.
EMSL-Las Vegas completed their reverification of the merged data sets by directly making changes to copies of the verified
data sets to create the modified verified database. Staff at ERL-Corvallis transferred copies of the modified verified data to
their VAX 8600 minicomputer for re-validation. After re-validation of the data, ERL-Corvallis staff downloaded the files to
IBM compatible microcomputer diskettes for transfer to SAI. SAI and ERL-Corvallis staff then created the validated and
final (enhanced) data sets on IBM compatible microcomputers using PC-SAS.
DATABASE DESIGN
The ELS-II database consists of information collected in three seasonal chemistry surveys (spring, summer, and fall
of 1986). Four levels or versions of data sets were developed for each seasonal study. These versions were operationally
defined as the raw, verified, validated, and enhanced (final) databases (Figure 2-1).
Each raw data set (designated as DS1) contains the original data as reported on the field forms and by the analytical
laboratories. The raw data sets were reviewed by the quality assurance (QA) staff at EMSL-Las Vegas to verify the
reported results. A verified data set (version DS2) was developed from each raw data set. The raw and verified data sets for
each seasonal survey were reviewed by staff at ERL-Corvallis to determine the quality of the data with respect to its
intended use, resulting in the development of validated data sets. Two versions of each validated data set were created: a
complete version
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Assembly of Field/Lab
Data Forms
(EMSL-Las Vegas)
Data Entry
(Systems Applications, Inc.)
Creation of Raw Data Bases
(Systems Applications, Inc.)
Data Verification
(EMSL-Las Vegas)
Creation of Verified Data Bases
(Systems Applications, Inc.)
Preliminary Data Validation
(ERL-Corvallis)
Data Validation
(ERL-Corvaliis)
Creation of Validated Data Bases
(Systems Applications, Inc.)
Instructions for Creation of
Final Data Bases
(ERL-Corvallis)
Creation of Final Data Bases
(Systems Applications, Inc.)
Figure 2-1. Flow diagram of the creation of the ELS-II databases.
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(DS3A) and a reduced version (DS3B) that contained fewer variables. The enhanced data set, used for calculating
population estimates and data interpretation, was developed from the DS3B version. Only the reduced validated (DS3B)
and the enhanced (DS4A) data sets are being distributed.
This data dictionary documents the reduced validated and enhanced (final) data sets, DS3B and DS4A. Data set
DS3B (validated) should be used by investigators who require unaveraged, unreplaced data. Verification and validation
suspect values are present in data set DS3B and may be removed by the user if desired (validation outliers have a U code in
the variable flag field). DS3B also contains some of the QA data. Data set DS4A (enhanced) is easier to use for general
analysis (there is only one data line per lakewater sample) and is the data set used for making population estimates in the
ELS-II data report.
CREATION OF THE RAW DATA SETS
Development of the raw data set involved checking the data forms from the field and analytical laboratories and
entering the data from these forms. EMSL-Las Vegas provided copies of the field data forms for each seasonal chemistry
survey, along with hard copies of summaries of the results of laboratory analyses for the spring seasonal chemistry survey.
The data management staff developed data entry screens for the field data forms using the dBase III Plus software package
implemented on IBM compatible microcomputers. The entry screens for the laboratory data were developed by modifying
the data entry software package that EMSL-Las Vegas had developed for the ELS-II. EMSL-Las Vegas then provided the
analytical laboratory data for the summer and fall seasonal chemistry surveys on diskettes as dBase compatible files.
To insure accurate transcription of data from the field and laboratory forms, data were initially entered independently
by two operators. After entry, each file was sorted and converted to an ASCII-format file. The two files were compared
using a program written in the "C" programming language. The output was a listing of the data records and variables for
which discrepancies were found. In addition, data records that occurred in one file but not the other were also identified.
Entry errors, duplicate records, and missing records were subsequently corrected. The comparison procedure was repeated,
and another list of discrepancies was output. At this point a member of the data management team reviewed any remaining
discrepancies, and questions were referred to the QA staff at EMSL-Las Vegas. One of the data files was corrected and
used in the creation of the raw data set.
The dBase files containing analytical laboratory data were also converted to ASCII format, with each record written
as a single line. A program was developed to break the lines into lengths compatible with the personal computer version of
SAS. In a few cases, the dBase file was entered directly into a SAS data file using the PROC DBF procedure.
For both field data and analytical data files, a SAS program was written to define the data file structure (variable
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names, types, field widths, and labels) and read the ASCII file when necessary. The result of this operation was the creation
of a raw data set in SAS. Copies of each raw data set were transferred to the National Computer Center, where they could
be accessed from EMSL-Las Vegas and ERL-Corvallis.
CREATION OF THE VERIFIED DATA SETS
The QA staff at EMSL-Las Vegas subjected the raw data sets to a set of quality control (QC) checks and identified
various modifications to the raw data (Mitchell-Hall et al, 1989). "Transaction files" were generated in SAS containing the
changes that were to be made to the raw data sets. A preliminary version of each verified data set was generated by
applying the transaction files to the raw data sets. The transaction files were transferred to the data management staff, who
applied them to the official raw data sets. Each resulting verified data set was compared to its preliminary version. If the
two data sets were identical, then the resultant updated data set was considered to be the verified data set for a seasonal
chemistry survey. If the comparison failed, then the discrepancies were resolved by comparing the updated data set to the
original data forms (Mitchell-Hall et al., 1989).
Following verification, a reverification was performed because of suspected data quality problems, primarily with
spring anion data. As a result of this special data assessment (described in detail in Mitchell-Hall et al., 1989), a new
modified verified database was created that was then used in validation and in the creation of the validated and enhanced
data sets. Copies of the modified verified data sets were transferred to the National Computer Center where they could be
accessed from EMSL-Las Vegas and ERL-Corvallis.
CREATION OF THE VALIDATED DATA SETS
The validated data set for each seasonal survey was created by changing the verified set according to specific
instructions from the project staff at ERL-Corvallis. The changes were implemented as individual transactions, that is, each
transaction was made by running a SAS program on the appropriate verified data set to identify the data records of interest
and to create a transaction file. Then the transaction file was applied to the verified data set to create the validated data set
for each seasonal survey.
In situations where one transaction was dependent on another, a temporary data set was created by applying the first
transaction to the verified data set and then the second transaction to the temporary data set. Each resulting data set was
checked against the verified data set and the instructions from ERL-Corvallis. Any discrepancies were resolved, and the
result was considered the complete validated data set (version DS3A). The reduced validated data set (version DS3B) was
created by eliminating some of the internal QA variables and empty flag fields from DS3A.
The creation of the seasonal validated data sets involved (1) changing units from mg/L to ^eq/L where appropriate,
10
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(2) creating two new variables, mean Secchi depth (SECME98), and labile (inorganic) monomeric aluminum (ALDI98),
calculated as the difference between total monomeric aluminum (ALD02) and organic monomeric aluminum (ALO_02), (3)
adding physical data from detailed bathymetry derived by the Adirondack Lake Survey Corporation, (4) adding cluster and
phase II weights, (5) rounding, (6) fixing miscellaneous errors, and (7) concatenating the validation flags to the verification
flags.
During validation, missing values and values with known errors based on relationships with other variables were
identified and assigned validation flags (UO or Ul; see Section 4). Values with either a UO or Ul validation flag were deleted
in the creation of the enhanced data set. Only the 24 major variables listed In Table 2-1 were validated in ELS-II.
Population estimates cannot be made if there are missing values, thus missing values and validation outliers were replaced
in the enhanced (but NOT in the validated) data set if they were required to make population estimates (epilimnion samples
from target lakes).
CREATION OF THE ENHANCED (FINAL) DATA SETS
Several sets of instructions for the creation of the final data sets were provided by the project staff at ERL-Corvallis.
The first set of instructions was applied to the validated data sets, and temporary data set were created. The next set of
instructions was applied to the temporary final data sets, and new temporary data sets were created. This process continued
until the data management staff had implemented all instructions. At this point, the final data sets were checked against the
validated data sets and all the instructions from ERL-Corvallis. These final data sets were designated as the complete
versions DS4A.
The enhanced (final) data set (version DS4A) for each seasonal chemistry survey was constructed from DS3B by (1)
deleting all trailer duplicates (SAMCD02= TD'), laboratory QA splits (SAMCD02='S'), and all values with a UO or Ul
validation flag, (2) averaging all replicate values (from field duplicate samples), (3) changing negative values (except for
ANC and BNC) to zero, and (4) replacing all missing values for the 24 major variables in Table 2-1 with values calculated
from regression models, so that population estimates could be made. In addition, a drop code variable (DRPCDE) was
added to the enhanced data set to distinguish the ELS-II target lake samples from nontarget samples. Only 30 values were
replaced during the creation of the enhanced ELS-II data sets: 12 in the spring, 14 in the summer, and 4 in the fall.
DATABASE QUALITY CONTROL
All phases of the data management program included various quality control checks to minimize errors. Computer
programs were checked by a person that was not involved in writing the code.
Table 2-1. Major Variables Validated in ELS-II
11
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ACCO11
ALEX11
CL98
D1C02
FTL98
MN11
N0398
PTL11
ALD02
ALKA11
COLOR02
DOC 11
K98
NA98
PHEQ11
SO498
ALO_02
CA98
COND11
FEU
MG98
NH498
PH02
SIO211
Comments, program logic, and test cases were examined. All data entry screens were examined to insure
consistency of appearance with the field or laboratory forms and to insure that the data were stored in the correct
fields.
For each raw data set, a listing of variable names, data types, field widths, formats, and SAS labels
(generated from the SAS CONTENTS procedure) was reviewed for errors. A listing of all values in each data set
was generated and compared to either the original field data forms or listings of data on the original diskettes to
verify that all data fields were present and in the correct format. In addition, individual data values were selected
at random and compared with those on the original data forms or diskettes.
For each verified data set, any discrepancies between the verified data sets developed at SA1 and at
EMSL-Las Vegas were identified using the SAS COMPARE procedure. Listings from the SAS CONTENTS
and PRINT procedures were reviewed in the same manner as were the raw data sets. In addition, the SAS log
files were examined to insure that the appropriate processing steps had been completed.
For the validated data sets, each transaction was checked individually. The SAS programs were checked
for logic and internal documentation (i.e., comments). SAS log files were checked for errors and problems. SAS
list files containing the actual data changes were examined to be certain that all validation changes requested by
ERL-Corvallis were implemented. Listings generated by the SAS CONTENTS and PRINT procedures were
reviewed in the same manner as were the raw and verified data sets.
For the final data sets, all SAS programs were checked for logic and comments. SAS log and list files were
examined for any errors or deviations from the ERL-Corvallis instructions. Listings from SAS CONTENTS and
PRINT procedures were reviewed as described for the other data sets.
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SECTION 3
DATA QUALITY SUMMARY
A detailed discussion of the ELS-II QA data is given in the ELS-II QA report (Mitchell-Hall et al., 1989) and
summarized in the ELS-II data report (Herlihy et al., 1991). Two analytical laboratories and a central processing laboratory
analyzed samples in the ELS-II. The central processing laboratory in Las Vegas analyzed PH02, D1C02, COLOR02,
TURO2, ALD02, and ALO_02 (see Section 5 for variable definitions) in all seasons. One analytical laboratory analyzed all
the other chemical data for the spring; the other analytical laboratory analyzed all the fall data. Summer samples were
analyzed by both analytical laboratories.
For most of the major analytes described in Table 2-1, data quality (precision and accuracy) in ELS-II was
comparable to that achieved in the other components of the National Surface Water Survey. Chloride measurements made
by one laboratory, however, are suspect (based on both the QA data and charge balance/calculated conductivity checks) and
we recommend against their use in data interpretation. This would eliminate chloride data from the entire spring database
and from about half the summer database. In addition, three other analytes appear to produce inconsistent QA results: air-
equilibrated dissolved inorganic carbon (DICE11), air-equilibrated pH (PHEQ11), and total aluminum (ALTL11). The
closed-system pH and dissolved inorganic carbon analyses (PH02 and DIC02), however, achieved acceptable precision. For
all analytes, especially aluminum variables, nitrate, ammonia, and total phosphorous, care should be taken in interpreting
values around and below the system detection limit (SDL). The SDL represents the concentration that was significantly
greater (95% confidence) than field blank (deionized water) concentrations. SDLs for each variable are summarized in
Mitchell-Hall etal. (1989).
In summary, as listed in the notice to data users, we make the following recommendations for data use:
1. Chloride (CL98/CL11) values measured at one of the analytical laboratories should not be used. The
suspect chloride values are present in the validated data set (DS3B) and the chloride flag (CL1 IF) has a Ul
code. In the enhanced data set (DS4A), these suspect chloride values have been set to "missing" values.
Population estimates for chloride should not be made for the summer and spring (all fall values were
measured at the other analytical laboratory).
2. All field (in situ) conductivity (variables - Cxxxxl D and CON601D) measurements appear to be
unreliable and should be interpreted with caution. These measurements were not validated. No problems
were identified with laboratory conductivity (CONDI 1) values.
3. Total aluminum (ALTL11) data showed very poor agreement between laboratories and precision was
highly variable. This problem is evident in all NSWS surveys. In addition, a number of total aluminum
values were less than the total monomeric aluminum values. Discretion is advised in interpreting total
aluminum data. These problems do not relate to total monomeric aluminum (ALD02), organic monomeric
aluminum (ALO_02), or inorganic monomeric aluminum (ALDI98).
4. Air-equilibrated dissolved inorganic carbon (DICE11) and air-equilibrated pH (PHEQ11)
showed some laboratory bias and poor precision at higher pH. Users are strongly advised
to use the closed-system dissolved inorganic carbon (DIC02) and pH (PH)2) measurements
for data analysis.
13
-------
SECTION 4
LIST OF VARIABLES
The variables in the three seasonal reduced validated (DS3B) SAS data sets are listed in the following three
tables produced using the SAS procedure CONTENTS.
Table 4-1. Spring Seasonal Data Set
Table 4-2. Summer Seasonal Data Set
0 Table 4-3. Fall Seasonal Data Set
Variables are listed alphabetically, and each table provides the variable name, type (numeric or character), length
(in bytes, as structured in SAS), format, and SAS label.
Variable labels are printed as they appear in the SAS data sets. The use of all capital letters and "UEQ/L"
and US/CM" for Veq/L' and VS/cm" are examples of constraints imposed by limitations of the computer
character set. Units of measure are defined in Section 5.
In addition to the variables listed in these tables, a drop code variable (DRPCDE) has been added to each
enhanced (final) seasonal data set. DRPCDE is a numeric variable of length 8, format F8., which is used to
distinguish target from nontarget lakewater samples.
14
-------
Table 4-1. Variables in the Reduced Validated Spring Seasonal (SPSVBM01) Data Set
Variable
ACCO11
ACCO11F
ALD02
ALD02F
ALDI98
ALEX 11
ALEX 1 IF
ALKA11
ALKA11
ALO 02
ALO 02F
ALTLT11
ALTL11F
ANCAT98
ANDEF98
ANSUM98
BAT ID
BNSTR99
C0151D
C0151DF
C04051D
C06101D
C08151D
C10201D
C12251D
C14301D
C16351D
C18401D
C20451D
CA11
CA98
CA11F
CATSU98
CL1
CL98
CL11F
CLSTR99
CNTY99
CO398
COLOR02
COLOR02F
CON601D
CONCA98
COND11
CONDI IF
CON BID
CXX501D
Type
Num
Char
Num
Char
Num
Num
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Char
Num
Char
Num
Num
Char
Num
Num
Num
Char
Num
Num
Length
8
12
8
12
8
8
12
8
12
8
12
8
12
8
8
8
8
8
8
12
8
8
8
8
8
8
8
8
8
8
8
12
8
8
a
12
8
5
8
8
12
8
8
8
12
8
8
Format
F8.1
F8.4
F8.4
F8.4
F8.1
F8.4
F8.4
F8.4
F8.4
F8.4
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.3
F8.4
F8.4
F8.3
F8.4
8.
F8.4
F8.
F8.
F8.4
F8.1
F8.
F8.
SAS Label
CO2-AC1DITY (UEQ/L) FORM 1 1
FLAG FOR ACCO1 1
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
FLAG FOR ALD02
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACTRACTABLE (UG/L) FORM 1 1
FLAG FOR ALEX 11
ALKALINITY (UEQ/L) FORM 1 1
FLAG FOR ALKA11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
FLAG FOR ALO 02
TOTAL ALUMINUM (UG/L) FORM 1 1
FLAGFORALTL11
CATIONS/ANIONS RATIO
CATSUM-ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
BATCH IDENTIFICATION NUMBER
POPULATION SIZE BY STRATA
CONDUCTIVITY (US/CM) AT 1.5 M FORM 1ID
FLAG FOR CO 15 ID
CONDUCTIVITY AT 4 OR 5 M (US/CM) FORM ID
CONDUCTIVITY AT 6 OR 10 M (US/CM) FORM ID
CONDUCTIVITY AT 8 OR 15 M (US/CM) FORM ID
CONDUCTIVITY AT 10 OR 20 M (US/CM) FORM ID
CONDUCTIVITY AT 12 OR 25 M (US/CM) FORM ID
CONDUCTIVITY AT 14 OR 30 M (US/CM) FORM ID
CONDUCTIVITY AT 16 OR 35 M (US/CM) FORM ID
CONDUCTIVITY AT 18 OR 40 M (US/CM) FORM ID
CONDUCTIVITY AT 20 OR 45 M (US/CM) FORM ID
CALCIUM (MG/L) FORM 1 1
CALCIUM (UEQ/L)
FLAG FOR CA 11
SUM OF CATIONS (UEQ/L)
CHLORIDE ION (MG/L) FORM 1 1
CHLORIDE (UEQ/L)
FLAG FOR CL 11
PHASEII CLUSTER (1, 2 or 3)
FIPS CODE (ST, COUNTY)
CARBONATE ALKALINITY (UEQ/L)
COLOR (PCU) FORM 2
FLAG FOR COLOR 02
CONDUCTIVITY AT 0.6 * DEPTH (US/CM) FORM ID
CALCULATED CONDUCTIVITY (US/CM)
CONDUCTIVITY (US/CM) FORM 1 1
FLAGFORCOND11
CONDUCT AT BOTTOM- 1.5 M (US/CM) FORM ID
CONDUCTIVITY AT 50 M (US/CM) FORM ID
(Continued)
15
-------
Table 4-1. (Continued)
Variable
DATSH02
DATSH1D
DATSMP
DIC02
DIC02F
DICE 11
DICE 1 IF
DICI11
DICI11F
DISM99
DOC 11
DOC11F
DO 151D
DO 601D
DO BID
DPCA1D
DPSIT1D
DPSITX1D
DP 601D
DP BID
ELEV99
ELEVX99
FEU
FE11F
FTL11
FTL98
FTL11F
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
K11F
LABNA02
LAKE ID
LAKNA1D
LAT99
LATDD99
LKID99
LKNAM99
LKSIZ99
LKSIZX99
LKVOL99
LKVOLX99
Type
Num
Num
Num
Num
Char
Num
Char
Num
Char
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Char
Char
Num
Char
Char
Num
Num
Num
Num
Length
8
8
8
8
12
8
12
8
12
8
8
12
8
8
8
8
8
8
8
8
8
8
8
12
8
8
12
8
8
8
4
9
6
8
8
12
30
7
30
10
8
7
30
8
8
8
8
Format
DATE7.
DATE7.
DATE7.
F8.3
F8.3
F8.
F8.2
F8.2
F8.2
F8.2
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.3
F8.4
F8.4
F8.4
F8.4
F8.3
F8.3
F8.4
F8.4
F8.2
F8.2
F8.3
F8.3
SAS Label
DATE SHIPPED FORM 2
DATE SHIPPED FORM ID
DATE SAMPLED
DIG (MG/L) FORM 2
FLAG FOR DIC02
DIC-EQUIL (MG/L) FORM 1 1
FLAG FOR DICE 11
DIC-INIT (MG/L) FORM 1 1
FLAGFORDICI11
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 1 1
FLAG FOR DOC 11
DISSOLVED OXYGEN (MG/L) 1.5 M FORM ID
DISSOLVED OXYGEN AT 0.6 * DEPTH FORM ID
DISOXYGEN (MG/L) BOTTOM-1.5 M FORM ID
DEPTH CATEGORY 4 = <20 M 5 = >20 M FORM ID
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M)-ALSC
DEPTH 0.6 * BOTTOM (M) FORM ID
DEPTH AT BOTTOM-1.5 M (M) FORM ID
LAKE ELEVATION (M)
LAKE ELEVATION (M)-ALSC
IRON (UG/L) FORM 1 1
FLAG FOR FE 11
FLUORIDE (MG/L) FORM 1 1
FLUORIDE (UEQ/L)
FLAG FOR FTL 11
HYDROGEN FROM PHAC1 1 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M ** 2/YR)
HYDROLAB METER IDENTIFIER CODE FORM ID
HYDROLOGIC TYPE
PRESENCE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 1 1
POTASSIUM (UEQ/L)
FLAG FOR Kll
LABORATORY FOR ANALYSIS FORM 2
LAKE IDENTIFICATION NUMBER
LAKE NAME FORM ID
LATITUDE
LATITUDE (DECIMAL DEGREES)
ERLD-UMD ID/ALSC WSHED-POND ID
LAKE NAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA) - ALSC
CALC LAKE VOL (10 ** 6 CUM)
DIG. LAKE VOL (10 ** 6 CUM) - ALSC
(Continued)
16
-------
Table 4-1. (Continued)
Variable
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
MG98
MG11F
MN11
MN11F
NA11
NA98
NA11F
NH411
NH498
NH411F
NO311
NO398
NO311F
NO3DP99
ORGIO98
PH02
PH0151D
PH0151DF
PH02F
PHAC11
PHAC11F
PHAL11
PHAL11F
PHEQ11
PHEQ11F
PH 60 ID
PH BID
PRCIP99
PREC1D
PTL11
PTL11F
RGSPC99
RPREC1D
RT99
RTX99
RUNIN99
RUNOF99
RUNOFX99
SAM CD02
SAM ID
S AMID 1 IF
SBRGN99
Type
Num
Char
Char
Char
Num
Num
Char
Num
Char
Num
Num
Char
Num
Num
Char
Num
Num
Char
Num
Num
Num
Num
Char
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Char
Num
Char
Char
Char
Num
Num
Num
Num
Num
Char
Num
Char
Char
Length
8
11
25
40
8
8
12
8
12
8
8
12
8
8
12
8
8
12
8
8
8
8
12
12
8
12
8
12
8
12
8
8
8
5
8
12
16
8
8
8
8
8
8
10
8
12
1
Format
F8.4
F8.3
F8.4
F8.3
F8.3
F8.4
F8.3
F8.4
F8.4
F8.4
F8.2
F8.4
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.3
F8.4
F8.3
8.3
F8.
F8.3
8.3
F8.
SAS Label
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 1 1
MAGNESIUM (UEQ/L)
FLAG FOR MG 11
MANGANESE (UG/L) FORM 1 1
FLAG FOR MN 11
SODIUM (MG/L) FORM 1 1
SODIUM (UEQ/L)
FLAG FOR NA 11
AMMONIUM ION (MG/L) FORM 1 1
AMMONIUM (UEQ/L)
FLAG FOR NH4 11
NITRATE ION (MG/L) FORM 1 1
NITRATE (UEQ/L)
FLAG FOR NO31 1
NITRATE DEPOSITION (G/M ** 2/YR)
ORGANIC ANION (UEQ/L)
STATION PH FORM 2
PHAT1.5MFORM ID
FLAG FOR PH015ID
FLAG FOR PH02
ACIDITY INITIAL PH FORM 1 1
FLAGFORPHAC11
ALKALINITY INITIAL PH FORM 1 1
FLAGFORPHAL11
AIR-EQUILIBRATED PH FORM 1 1
FLAGFORPHEQ11
PH AT 0.6 * DEPTH FORM ID
PHATBOTTOM-1.5 M FORM ID
PRECIPITATION (M/YR)
PRECIPITATION FORM ID
TOTAL PHOSPHORUS (UG/L) FORM 1 1
FLAG FOR PTL 11
REG SPEC LTM NRC DEW DER SAMPLE CLASS
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR)-ALSC
ANNUAL RUNOFF INCHES FROM DIGIT MAP
SURFACE WATER RUNOFF (M/YR)
SURFACE WATER RUNOFF (M/YR)-ALSC
SAMPLE CODE FORM 2
SAMPLE IDENTIFICATION NUMBER
FLAG FOR SAM ID FORM 1 1
NSWS SUBREGION
(Continued)
17
-------
Table 4-1. (Continued)
Variable
SECDI1D
SECME98
SECRE1D
SIO211
SIO211F
SITETYP
SO411
SO498
SO411F
SO4DP99
SOBC98
SPLCD02
ST99
STRAT99
T04051D
T06101D
T08151D
T10201D
T12251D
T14301D
T16351D
T18401D
T20451D
TIMRE1D
TIMSM1D
TM0151D
TMP6O1D
TMPA1D
TMPD11D
TMPD21D
TMP BID
TUR02
TUR02F
TXX501D
VISIT ID
WALA99
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT10 99
WT2C99
WT2T99
Type
Num
Num
Num
Num
Char
Char
Num
Num
Char
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Char
Num
Num
Char
Char
Num
Num
Char
Char
Num
Num
Num
Num
Length
8
8
8
8
12
9
8
8
12
8
8
1
2
3
8
8
8
8
8
8
8
8
8
8
3
8
8
8
8
8
8
8
12
8
12
8
8
3
8
8
8
25
8
8
8
8
8
Format
F8.1
8.1
F8.1
F8.3
F8.3
F8.4
F8.2
F8.4
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
TIME5.
TIME5.
F8.
F8.
F8
F8.
F8.
F8.
F8.2
F8.1
F8.2
8.2
F8.3
8.3
8.3
8.3
8.4
8.3
SAS Label
SECCHI DEPTH:DISAPPEAR (M) FORM ID
MEAN: SECCHI DISK DISAPPEAR, REAPPEAR (M)
SECCHI DEPTH: REAPPEAR (M) FORM ID
SILICA (MG /L) FORM 1 1
FLAGFORSIO211
SAMPLING SITE OR TYPE CODE
SULFATE ION (MG/L) FORM 1 1
SULFATE (UEQ/L)
FLAG FOR SO4 11
SULFATE DEPOSITION (G/M ** 2/YR)
SUM OF BASE CATIONS (UEQ/L)
SPLIT/SAMPLE CODE TO LAS VEGAS FORM 2
STATE (TWO-LETTER ABBREV)
NSWS STRATA
TEMPERATURE AT 4 OR 5 M (DEGC) FORM ID
TEMPERATURE AT 6 OR 10 M (DEGC) FORM ID
TEMPERATURE AT 8 OR 15 M (DEGC) FORM ID
TEMPERATURE AT 10 OR 20 M (DEGC) FORM ID
TEMPERATURE AT 12 OR 25 M (DEGC) FORM ID
TEMPERATURE AT 14 OR 30 M (DEGC) FORM ID
TEMPERATURE AT 16 OR 35 M (DEGC) FORM ID
TEMPERATURE AT 18 OR 40 M (DEGC) FORM ID
TEMPERATURE AT 20 OR 45 M (DEGC) FORM ID
TIME RECEIVED (24H) HH:MM FORM ID
TIME SAMPLED (24H) HH:MM FORM ID
TEMPERATURE (DEGC) AT 1.5 M FORM ID
TEMPERATURE AT 0.6 * DEPTH (DEGC) FORM ID
AIR TEMPERATURE (DECG) FORM ID
TEMP DIP 1.5 M-BOTTOM (DEGC) FORM ID
TEMP DIP 1.5 M-0.6 * DEPTH (DEGC) FORM ID
TEMP AT BOTTOM-i .5 M (DEGC) FORM ID
TURBIDITY (MTU) FORM2
FLAG FOR TUR02
TEMPERATURE AT 50 M (DEGC) FORM ID
VISIT FORM ID
WATERSHED AREA/LAKE AREA
WATERSHED AREA/LAKE AREA-ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA)-ALSC
DISTURB W/I 100 M-OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
TOTAL PHASE II WEIGHT
18
-------
Table 4-2. Variables in the Reduced Validated Summer Seasonal (SUSVBM01) Data Set
Variable
ACCES1D
ACCO11
ACCO11F
ALD02
ALD02F
ALDI98
ALEX 11
ALEX 1 IF
ALKA11
ALKA11F
ALO 02
ALO 02F
ALTLT11
ALTL11F
ANCAT98
ANDEF98
ANSUM98
BAT ID
BNSTR99
C0051D
C0051DT
C051D
C0151DF
C0251D
C0251DT
C0351D
C0451D
C0551D
C0651D
C0751D
C0851D
C0951D
C1051D
C1251D
C1451D
C1651D
C1851D
C2051D
C2251D
C2451D
C2651D
C2851D
C3051D
C3251D
C3451D
Type
Char
Num
Char
Num
Char
Num
Num
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Num
Num
Num
Char
Num
Char
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Length
3
8
12
8
12
8
8
12
8
12
8
12
8
12
8
8
8
8
8
8
6
8
12
8
6
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
Format
F8.1
F8.4
F8.4
F8.4
F8.1
F8.4
F8.4
F8.4
F8.4
F8.4
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
SAS Label
ACCESS FORM ID
CO2-ACIDITY (UEQ/L) FORM 1 1
FLAG FOR ACCO1 1
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
FLAG FOR ALD02
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACTABLE (UG/L) FORM 1 1
FLAG FOR ALEX 11
ALKALINITY (UEQ/L) FORM 1 1
FLAGFORALKA11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
FLAG FOR ALO 02
TOTAL ALUMINUM (UG/L) FORM 1 1
FLAGFORALTL11
CATIONS/ANIONS RATIO
CATSUM-ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
BATCH IDENTIFICATION NUMBER
POPULATION SIZE BY STRATA
CONDUCTIVITY AT 0.5 M (US/CM) FORM ID
TAGFORC0051D
CONDUCTIVITY AT 1.5 M (US/CM) FORM ID
FLAG FOR CO 15 ID
CONDUCTIVITY AT 2.5 M (US/CM) FORM ID
TAGFORC0251D
CONDUCTIVITY AT 3.5 M (US/CM) FORM ID
CONDUCTIVITY AT 4.5 M (US/CM) FORM ID
CONDUCTIVITY AT 5.5 M (US/CM) FORM ID
CONDUCTIVITY AT 6.5 M (US/CM) FORM ID
CONDUCTIVITY AT 7.5 M (US/CM) FORM ID
CONDUCTIVITY AT 8.5 M (US/CM) FORM ID
CONDUCTIVITY AT 9.5 M (US/CM) FORM ID
CONDUCTIVITY AT 10.5 M (US/CM) FORM ID
CONDUCTIVITY AT 12.5 M (US/CM) FORM ID
CONDUCTIVITY AT 14.5 M (US/CM) FORM ID
CONDUCTIVITY AT 16.5 M (US/CM) FORM ID
CONDUCTIVITY AT 18.5 M (US/CM) FORM ID
CONDUCTIVITY AT 20.5 M (US/CM) FORM ID
CONDUCTIVITY AT 22.5 M (US/CM) FORM ID
CONDUCTIVITY AT 24.5 M (US/CM) FORM ID
CONDUCTIVITY AT 26.5 M (US/CM) FORM ID
CONDUCTIVITY AT 28.5 M (US/CM) FORM ID
CONDUCTIVITY AT 30.5 M (US/CM) FORM ID
CONDUCTIVITY AT 32.5 M (US/CM) FORM ID
CONDUCTIVITY AT 34.5 M (US/CM) FORM ID
19
-------
C3651D Num
C3851D Num
Table 4-2. (Continued)
Variable
CA11
CA98
CA11F
CATSU98
CHLOD D
CHLOR1D
CL11
CL98
CL11F
CLSTR99
CNTY99
CO398
COLOR02
COLOR02F
COMNT1DA
COMNT1DB
CONCA98
COND11
CONDI IF
CONMH1D
CONMH1DF
CONMM1D
CONMM1DT
CONTH1D
CON BID
CRWID1 D
DATSH02
DATSMP
DIC02
DIC02F
DICE 11
DICE 1 IF
DICI11
DICI11F
DISM99
DOC 11
DOC11F
DOFIA1D
DOFIT1D
DOINT1D
DOMH1D
DOMM1D
DOTH ID
DOTH1DT
Type
Num
Num
Char
Num
Num
Num
Num
Num
Char
Num
Char
Num
Num
Char
Char
Char
Num
Num
Char
Num
Char
Num
Char
Num
Num
Char
Num
Num
Num
Char
Num
Char
Num
Char
Num
Num
Char
Num
Num
Num
Num
Num
Num
Char
8
8
Length
8
8
12
8
8
8
8
8
12
8
5
8
8
12
200
200
8
8
12
8
12
8
6
8
8
20
8
8
8
12
8
12
8
12
8
8
12
8
8
8
8
8
8
6
F8.
F8.
Format
F8.3
F8.4
F8.4
F8.1
F8.1
F8.3
F8.4
F8.
F8.4
F8.
F8.4
F8.1
F8.
F8.
F8.
F8.
DATE7.
DATE7.
F8.3
F8.3
F8.3
F8.
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
CONDUCTIVITY AT 36.5 M (US/CM) FORM ID
CONDUCTIVITY AT 38.5 M (US/CM) FORM ID
(Continued)
SAS Label
CALCIUM (MG/L) FORM 1 1
CALCIUM (UEQ/L)
FLAG FOR CA1 1
SUM OF CATIONS (UEQ/L)
CHLOROPHYLL VOLUME H2O D (ML) FORM ID
CHLOROPHYLL VOLUME H2O R (ML) FORM ID
CHLORIDE ION (MG/L) FORM 1 1
CHLORIDE (UEQ/L)
FLAG FOR CL 11
PHASE II CLUSTER (1, 2 or 3)
FIPS CODE (ST, COUNTY)
CARBONATE ALKALINITY (UEQ/L)
COLOR (PCU) FORM 2
FLAG FOR COLOR02
FIRST PART COMMENTS FORM ID
SECOND PART COMMENTS FORM ID
CALCULATED CONDUCTIVITY (US/CM)
CONDUCTIVITY (US/CM) FORM 1 1
FLAGFORCOND11
CONDUCTIVITY AT MID-HYP (US/CM) FORM ID
FLAG FOR CONMH1D
CONDUCTIVITY AT MID-MET (US/CM) FORM ID
TAG FOR CONMM1D
CONDUCTIVITY AT TOP-HYP (US/CM) FORM ID
CONDUCTIVITY AT BTM-1 .5 M (US/CM) FORM ID
FIELD CREW ID FORM ID
DATE SHIPPED FORM 2
DATE SAMPLED
DIG (MG/L) FORM 2
FLAG FOR DIC02
DIC-EQUIL (MG/L) FORM 1 1
FLAG FOR DICE 11
DIC-INIT (MG/L) FORM 1 1
FLAGFORDICI11
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 1 1
FLAG FOR DOC 11
D.O. FINAL ACTUAL CALIB VALUE FORM ID
D.O. FINAL THEOR CALIB VALUE FORM ID
D.O. INITIAL THEOR CALIB VALUE FORM ID
DISSOLVED OXYGEN AT MID-HYP FORM ID
DISSOLVED OXYGEN AT MID-MET FORM ID
DISSOLVED OXYGEN AT TOP-HYP FORM ID
TAG FOR DOTH ID
20
-------
DO 05 ID
DO 05 IDT
DO 151D
Num
Char
Num
8
6
8
F8.2
F8.2
DISSOLVED OXYGEN AT 0.5 M FORM ID
TAG FORD 015D
DISSOLVED OXYGEN (MG/L) 1.5 M FORM ID
(Continued)
Table ~2. (Continued)
Variable
DO BID
DPMH1D
DPMM1D
DPMM1DT
DPSCB1D
DPSCM1D
DPSIT1D
DPSITX1D
DPTH1D
DP BID
ELEV99
ELEVX99
FEU
FE11F
FTL11
FTL98
FTL11F
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
K11F
LABNA02
LAKE ID
LAKNA1D
LAT99
LATDD99
LKID99
LKNAM99
LKSIZ99
LKSIZX99
LKVOL99
LKVOLX99
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
VMG98
Type
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Char
Char
Num
Char
Char
Num
Num
Num
Num
Num
Char
Char
Char
Num
Num
Length
8
8
8
6
8
8
8
8
8
8
8
8
8
12
8
8
12
8
8
8
4
9
6
8
8
12
30
7
30
10
8
7
30
8
8
8
8
8
11
25
40
8
8
Format
F8.2
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.3
F8.4
F8.4
F8.4
F8.4
F8.3
F8.3
F8.4
F8.4
F8.2
F8.2
F8.3
F8.3
F8.4
F8.3
F8.4
SAS Label
DISOXYGEN (MG/L) BOTTOM-1..5 M FORM ID
DEPTH AT MID-HYP (M) FORM ID
DEPTH AT MID-MET (M) FORM ID
TAGFORDPMM1D
DEPTH SAMPLE COLL BTM-1.5M (M) FORM ID
DEPTH SAMPLE COLL MID-HYP (M) FORM ID
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M)-ALSC
DEPTH AT TOP-HYP (M) FORM ID
DEPTH AT BTM-1.5 M (M) FORM ID
LAKE ELEVATION (M)
LAKE ELEVATION (M)-ALSC
IRON (UG/L) FORM 1 1
FLAG FOR FE 11
FLUORIDE (MG/L) FORM 1 1
FLUORIDE (UEQ/L)
FLAG FOR FTL 11
HYDROGEN FROM PHAC1 1 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M ** 2/YR)
HYDROLAB METER IDENTIFIER CODE FORM
HYDROLOGIC TYPE
PRESENCE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 1 1
POTASSIUM (UEQ/L)
FLAG FOR Kll
LABORATORY FOR ANALYSIS FORM 2
LAKE IDENTIFICATION NUMBER
LAKE NAME FORM ID
LATITUDE
LATITUDE (DECIMAL DEGREES)
ERLD-UMD ID/ALSC WSHED-POND ID
LAKE NAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA)-ALSC
CALC LAKE VOL (10 ** 6 CUM)
DIG. LAKE VOL (10 ** 6 CUM)-ALSC
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 1 1
MAGNESIUM (UEQ/L)
ID
21
-------
MG11F
MN11
MN11F
NA11
Char
Num
Char
Num
12
8
12
8
F8.3
F8.3
FLAG FOR MG 11
MANGANESE (UG/L) FORM 1 1
FLAG FOR MN 11
SODIUM (MG/L) FORM 1 1
(Continued)
Table 4-2. (Continued)
Variable
NA98
NA11F
NH411
NH498
NH411F
NO311
NO398
NO311F
NO3DP99
ORGIO98
PH02
PH0051D
PH0151D
PH02F
PHAC11
PHAC11F
PHAL11
PHAL11F
PHEQ11
PHEQ11F
PHMH1D
PHMM1D
PHTH1D
PH BID
PRCIP99
PREC1D
PRECO1D
PTL11
PTL11F
RGSPC99
RPREC1D
RT99
RTX99
RUNIN99
RUNOF99
RUNOFX99
SAMBL1D
SAMBT1D
SAMCD02
SAMD11D
SAMD21D
S AMID 1 IF
Type
Num
Char
Num
Num
Char
Num
Num
Char
Num
Num
Num
Num
Num
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Num
Num
Char
Char
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Length
8
12
8
8
12
8
8
12
8
8
8
8
8
12
8
12
8
12
8
12
8
8
8
8
8
5
7
8
12
16
8
8
8
8
8
8
8
8
10
8
8
12
Format
F8.4
F8.3
F8.4
F8.4
F8.4
F8.2
F8.4
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
FB.3
F8.4
F8.3
F8.3
F8.
F8.3
F8.3
F8.
F8.
F8.
F8.
SAS Label
SODIUM (UEQ/L)
FLAG FOR NA 11
AMMONIUM ION (MG/L) FORM 1 1
AMMONIUM (UEQ/L)
FLAG FOR NH4 11
NITRATE ION (MG/L) FORM 1 1
NITRATE (UEQ/L)
FLAG FOR NO3 11
NITRATE DEPOSITION (G/M ** 2/YR)
ORGANIC ANION (UEQ/L)
STATION PH FORM 2
PH AT 0.5 M FORM ID
PHAT1.5MFORM ID
FLAG FOR PH02
ACIDITY INITIAL PH FORM 1 1
FLAGFORPHAC11
ALKALINITY INITIAL PH FORM 1 1
FLAGFORPHAL11
AIR-EQUILIBRATED PH FORM 1 1
FLAGFORPHEQ11
PH AT MID-HYP FORM ID
PH AT MID-MET FORM ID
PH AT TOP-HYP FORM ID
PHATBTM-1.5MFORM ID
PRECIPITATION (M/YR)
PRECIPITATION FORM ID
PRECIPITATION OBS (PR EV/CURRENT) FORM ID
TOTAL PHOSPHORUS (UG/L) FORM 1 1
FLAG FOR PTL 11
REG SPEC LTM NRC DEW DER SAMPLE CLASS
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR)-ALSC
ANNUAL RUNOFF INCHES FROM DIGIT MAP
SURFACE WATER RUNOFF (M/YR)
SURFACE WATER RUNOFF (M/YR)-ALSC
SAMPLE ID FOR BLANK FORM ID
SAMPLE ID BTM-1.5 M (6H21) FORM ID
SAMPLE CODE FORM 2
SAMPLE ID DUPLICATE 1 FORM ID
SAMPLE ID DUPLICATE 2 FORM ID
FLAG FOR SAM ID FORM 1 1
22
-------
SAMMH1D
SAMSF1D
SAM ID
SBRGN99
SCBLK1D
Num
Num
Num
Char
Char
8 F8.
8 F8.
8 F8.
1
1
SAMPLE ID MID-HYP (6H1 1) FORM ID
SAMPLE ID SFC-1.5 M (6E11) FORM ID
SAMPLE IDENTIFICATION NUMBER
NSWS SUBREGION
BLANK SAMPLE COLLECTED (Y ORN) FORM ID
(Continued)
Table 4-2. (Continued)
Variable
SCD151D
SCDBT1D
SCDMH1D
SCR151D
SCRBT1D
SCRMH1D
SECDI1D
SECDV1D
SECME98
SECRE1D
SIO211
SIO211F
SITETYP
SMSTR1D
SMTR1D
SO411
SO498
SO411F
SO4DP99
SOBC98
SPLCD02
ST99
STRAT99
SUBID1D
T0051D
T0151D
T0251D
T0351D
T0451D
T0551D
T0651D
T0751D
T0851D
T0951D
T1051D
T1251D
T1451D
T1651D
T1851D
T2051D
T2251D
T2451D
Type
Char
Char
Char
Char
Char
Char
Num
Char
Num
Num
Num
Char
Char
Num
Num
Num
Num
Char
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Length Format SAS Label
1
1
1
1
1
1
8 F8.
1
8 F8.
8 F8.
DUPLICATE SAMP COLL AT 1.5 M FORM ID
DUPLICATE SAMP COLL AT BTM-1.5 M FORM ID
DUPLICATE SAMP COLL AT MID-HYP FORM ID
ROUTINE SAMP COLL AT 1.5 M FORM ID
ROUTINE SAMP COLL AT BTM-1.5 M FORM ID
ROUTINE SAMP COLL AT MID-HYP FORM ID
[ SECCHI DEPTH:DISAPPEAR (M) FORM ID
SECCHI DEPTH Y= VISIBLE TO BOTTOM FORM ID
[ MEAN: SECCHI DISK DISAPPEAR, REAPPEAR (M)
[ SECCHI DEPTH: REAPPEAR (M) FORM ID
8 F8.3 SILICA (MG/L) FORM 1 1
12
9
8 F8.
8 F8.
8 F8.:
FLAGFORSIO211
SAMPLING SITE OR TYPE CODE
SAMPLE ID IN SUBSET TRIPLICATE FORM ID
SAMPLE ID TRIPLICATE FORM ID
5 SULFATE ION (MG/L) FORM 1 1
8 F8.4 SULFATE (UEQ/L)
12
FLAG FOR SO4 11
8 F8.2 SULFATE DEPOSITION (G/M ** 2/YR)
8 F8.4 SUM OF BASE CATIONS (UEQ/L)
12
2
3
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
SPLIT/SAMPLE CODE TO LAS VEGAS FORM 2
STATE (TWO-LETTER ABBREV)
NSWS STRATA
BATCH ID FOR SUBSET BATCH FORM ID
TEMPERATURE AT 0.5 M (DEGC) FORM ID
TEMPERATURE AT 1.5 M (DEGC) FORM ID
TEMPERATURE AT 2.5 M (DEGC) FORM ID
TEMPERATURE AT 3.5 M (DEGC) FORM ID
TEMPERATURE AT 4.5 M (DEGC) FORM ID
TEMPERATURE AT 5.5 M (DEGC) FORM ID
TEMPERATURE AT 6.5 M (DEGC) FORM ID
TEMPERATURE AT 7.5 M (DEGC) FORM ID
TEMPERATURE AT 8.5 M (DEGC) FORM ID
TEMPERATURE AT 9.5 M (DEGC) FORM ID
TEMPERATURE AT 10.5 M (DEGC) FORM ID
TEMPERATURE AT 12.5 M (DEGC) FORM ID
TEMPERATURE AT 14.5 M (DEGC) FORM ID
TEMPERATURE AT 16.5 M (DEGC) FORM ID
TEMPERATURE AT 18.5 M (DEGC) FORM ID
TEMPERATURE AT 20.5 M (DEGC) FORM ID
TEMPERATURE AT 22.5 M (DEGC) FORM ID
TEMPERATURE AT 24.5 M (DEGC) FORM ID
23
-------
T2651D
T2851D
T3051D
T3251D
T3451D
Num
Num
Num
Num
Num
8
8
8
8
8
F8.
F8.
F8.
F8.
F8.
TEMPERATURE AT 26.5 M (DEGC) FORM ID
TEMPERATURE AT 28.5 M (DEGC) FORM ID
TEMPERATURE AT 30.5 M (DEGC) FORM ID
TEMPERATURE AT 32.5 M (DEGC)FORM ID
TEMPERATURE AT 34.5 M (DEGC)FORM ID
(Continued)
Table 4-2. (Continued)
Variable
T3651D
T3851D
TIMSM1D
TMPA1D
TMPMH1D
TMPMM1D
TMPTH1D
TM BID
TUR02
TUR02F
WALA99
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT1O 99
WT2C99
WT2T99
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Char
Num
Num
Char
Char
Num
Num
Num
Num
Length
8
8
8
8
8
8
8
8
8
12
8
8
3
8
8
8
25
8
8
8
8
8
Format
F8.1
F8.1
TIMES.
F8.
F8.1
F8.1
F8.1
F8.1
F8.2
F8.2
F8.2
F8.3
F8.3
F8.3
F8.3
F8.4
F8.3
SAS Label
TEMPERATURE AT 36.5 M (DEGC) FORM ID
TEMPERATURE AT 38.5 M (DEGC) FORM ID
TIME SAMPLED (24H) HH:MM FORM ID
AIR TEMPERATURE (DEGC) FORM ID
TEMPERATURE AT MID-HYP (DEGC) FORM ID
TEMPERATURE AT MID-MET (DEGC) FORM ID
TEMPERATURE AT TOP-HYP (DEGC) FORM ID
TEMPERATURE AT BTM-1.5 M (DEGC) FORM ID
TURBIDITY (NTU) FORM 2
FLAG FOR TUR02
WATERSHED AREA/LAKE AREA
WATERSHED AREA/LAKE AREA-ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA)-ALSC
DISTURB W/I 100 M-OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
TOTAL PHASE II WEIGHT
24
-------
Table 4-3. Variables in the Reduced Validated Fall Seasonal (FASVBM01) Data Set
Variable
ACCES1D
ACCO11
ACCO11F
ALD02
ALD02F
ALDI98
ALEX 11
ALEX 1 IF
ALKA11
ALKA11F
ALO 02
ALO 02F
ALTLT11
ALTL11F
ANCAT98
ANDEF98
ANSUM98
BAT ID
BNSTR99
C0151D
C0151DF
C04051D
C06101D
C08151D
C10201D
C12251D
C14301D
C16351D
C18401D
C20451D
CA11
CA98
CA11F
CATSU98
CL11
CL98
CL11F
CLSTR99
CNTY99
CO398
COLOR02
COLOR02F
COMNTA1D
COMNTB1D
CON601D
CONCA98
COND11
Type
Char
Num
Char
Num
Char
Num
Num
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Char
Num
Char
Num
Num
Char
Char
Char
Num
Num
Num
Length
3
8
12
8
12
8
8
12
8
12
8
12
8
12
8
8
8
8
8
8
12
8
8
8
8
8
8
8
8
8
8
8
12
8
8
8
12
8
5
8
8
12
150
150
8
8
8
Format
F8.1
F8.4
F8.4
F8.4
F8.1
F8.4
F8.4
F8.4
F8.4
F8.4
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.
F8.3
F8.4
F8.4
F8.3
F8.4
F8.
F8.4
F8.
F8.
F8.4
F8.1
SAS Label
ACCESS FORM ID
CO2-ACIDITY (UEQ/L) FORM 1 1
FLAG FOR ACCO1 1
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
FLAGFQRALD02
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACTABLE (UG/L) FORM 1 1
FLAG FOR ALEX 11
ALKALINITY (UEQ/L) FORM 1 1
FLAGFORALKA11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
FLAG FOR ALO 02
TOTAL ALUMINUM (UG/L) FORM 1 1
FLAG FORALTL11
CATIONS/ANIONS RATIO
CATSUM-ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
BATCH IDENTIFICATION NUMBER
POPULATION SIZE BY STRATA
CONDUCTIVITY (US/CM) AT 1.5 M FORM ID
FLAG FOR CO 15 ID
CONDUCTIVITY AT 4 OR 5 M (US/CM) FORM ID
CONDUCTIVITY AT 6 OR 10 M (US/CM) FORM ID
CONDUCTIVITY AT 8 OR 15 M (US/CM) FORM ID
CONDUCTIVITY AT 10 OR 20 M (US/CM) FORM ID
CONDUCTIVITY AT 12 OR 25 M (US/CM) FORM ID
CONDUCTIVITY AT 14 OR 30 M (US/CM) FORM ID
CONDUCTIVITY AT 16 OR 35 M (US/CM) FORM ID
CONDUCTIVITY AT 18 OR 40 M (US/CM) FORM ID
CONDUCTIVITY AT 20 OR 45 M (US/CM) FORM ID
CALCIUM (MG/L) FORM 1 1
CALCIUM (UEQ/L)
FLAG FOR CA 11
SUM OF CATIONS (UEQ/L)
CHLORIDE ION (MG/L) FORM 1 1
CHLORIDE (UEQ/L)
FLAG FOR CL 11
PHASE II CLUSTER (1, 2 or 3)
FIPS CODE (ST, COUNTY)
CARBONATE ALKALINITY (UEQ/L)
COLOR (PCU) FORM 2
FLAG FOR COLOR02
FIRST PART OF COMMENTS FORM ID
SECOND PART OF COMMENTS FORM ID
CONDUCTIVITY AT 0.6 * DEPTH (US/CM) FORM ID
CALCULATED CONDUCTIVITY (US/CM)
CONDUCTIVITY (US/CM) FORM 1 1
25
-------
Table 4-3. (Continued)
Variable
CONDI IF
CON BID
CXX501D
DATSH02
DATSMP
DIC02
DIC02F
DICE 11
DICE 1 IF
DICI11
DICI11F
DISM99
DOC 11
DOC11F
DO 151D
DO 601D
DO BID
DPCAT1D
DPSIT1D
DPSITX1D
DP 601D
DP BID
ELEV99
ELEVX99
FEU
FE11F
FTL11
FTL98
FTL11F
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
K11F
LABNA02
LAKE ID
LAKNA1D
LAT99
LATDD99
LKID99
LKNAM99
LKSIZ99
LKSIZX99
Type
Char
Num
Num
Num
Num
Num
Char
Num
Char
Num
Char
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Char
Char
Num
Char
Char
Num
Num
Length
12
8
8
8
8
8
12
8
12
8
12
8
8
12
8
8
8
8
8
8
8
8
8
8
8
12
8
8
12
8
8
8
4
9
6
8
8
12
30
7
30
10
8
7
30
8
8
Format
F8.
F8.
DATE7.
DATE7.
F8.3
F8.3
F8.3
F8.
F8.2
F8.2
F8.2
F8.2
F8.
F8.1
F8.1
F8.1
F8.1
F8.1
F8. 1
F8.3
F8.4
F8.4
F8.4
F8.4
F8.3
F8.3
F8.4
F8.4
F8.2
F8.2
(Continued)
SAS Label
FLAGFQRCOND11
CONDUCT AT BOTTOM- 1.5 M (US/CM) FORM ID
CONDUCTIVITY AT 50 M (US/CM) FORM ID
DATE SHIPPED FORM 2
DATE SAMPLED
DIG (MG/L) FORM 2
FLAG FOR DIC02
DIC-EQUIL (MG/L) FORM 1 1
FLAG FOR DICE 11
DID-INIT (MG/L) FORM 1 1
FLAGFORDICI11
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 1 1
FLAG FOR DOC 11
DISSOLVED OXYGEN (MG/L) 1.5 M FORM ID
DISSOLVED OXYGEN AT 0.6 * DEPTH FORM ID
DIS OXYGEN (MG/L) BOTTOM-1.5 M FORM ID
DEPTH CATEGORY 4 = <20 M 5 = >20 M FORM
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M)-ALSC
DEPTH 0.6 * BOTTOM (M) FORM ID
DEPTH AT BOTTOM-1.5 M (M) FORM ID
LAKE ELEVATION (M)
LAKE ELEVATION (M)-ALSC
IRON (UG/L) FORM 1 1
FLAG FOR FE 11
FLUORIDE (MG/L) FORM 1 1
FLUORIDE (UEQ/L)
FLAG FOR FTL 11
HYDROGEN FROM PHAC1 1 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M ** 2/YR)
HYDROLAB METER IDENTIFIER CODE FORM
HYDROLOGIC TYPE
PRESENCE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 1 1
POTASSIUM (UEQ/L)
FLAG FOR Kll
LABORATORY FOR ANALYSIS FORM 2
LAKE IDENTIFICATION NUMBER
LAKE NAME FORM ID
LATITUDE
LATITUDE (DECIMAL DEGREES)
ERLD-UMD ID/ALSC WSHED-POND ID
LAKE NAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA)-ALSC
ID
ID
26
-------
Table 4-3. (Continued)
Variable
LKVOL99
LKVOLX99
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
MG98
MG11F
MN11
MN11F
NA11
NA98
NA11F
NH411
NH498
NH411F
NO311
NO398
NO311F
NO3DP99
NVLAK1D
OB SID ID
ORGIO98
PH0151D
PH0151DF
PH02
PH02F
PHAC11
PHAC11F
PHAL11
PHAL11F
PHEQ11
PHEQ11F
PH 60 ID
PH BID
PRCIP99
PREC1D
PRECO1D
PTL11
PTL11F
RGSPC99
RPREC1D
RT99
RTX99
Type
Num
Num
Num
Char
Char
Char
Num
Num
Char
Num
Char
Num
Num
Char
Num
Num
Char
Num
Num
Char
Num
Char
Char
Num
Num
Char
Num
Char
Num
Char
Num
Char
Num
Char
Num
Num
Num
Char
Char
Num
Char
Char
Char
Num
Num
Length
8
8
8
11
25
40
8
8
12
8
12
8
8
12
8
8
12
8
8
12
8
1
6
8
8
12
8
12
8
12
8
12
8
1
8
8
8
5
7
8
12
16
8
8
8
Format
F8.3
F8.3
F8.4
F8.3
F8.4
F8.3
F8.3
F8.4
F8.3
F8.4
F8.4
F8.4
F8.2
SAS Label
CALC LAKE VOL (10 ** 6 CUM)
DIG. LAKE VOL (10 ** 6 CUM)-ALSC
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 1 1
MAGNESIUM (UEQ/L)
FLAG FOR MG 11
MANGANESE (UG/L) FORM 1 1
FLAG FOR MN 11
SODIUM (MG/L) FORM 1 1
SODIUM (UEQ/L)
FLAG FOR NA 11
AMMONIUM ION (MG/L) FORM 1 1
AMMONIUM (UEQ/L)
FLAG FOR NH4 11
NITRATE ION (MG/L) FORM 1 1
NITRATE (UEQ/L)
FLAG FOR NO3 11
NITRATE DEPOSITION (G/M ** 2/YR)
(Continued)
NON-VARIABILITY LAKE (Y ORN) FORM ID
F8.4
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.2
F8.3
F8.4
OBSERVER ID NUMBER FORM ID
ORGANIC ANION (UEQ/L)
PHAT1.5MFORM ID
FLAG FOR PHO 15 ID
STATION PH FORM 2
FLAG FOR PH02
ACIDITY INITIAL PH FORM 1 1
FLAGFORPHAC11
ALKALINITY INITIAL PH FORM 1 1
FLAG FOR PHAL1 1
AIR-EQUILIBRATED PH FORM 1 1
FLAGFORPHEQ11
PH AT 0.6 * DEPTH FORM ID
PHATBOTTOM-1.5 M FORM ID
PRECIPITATION (M/YR)
PRECIPITATION FORM ID
PRECIPITATION OBS (PRE/CURRENT)
TOTAL PHOSPHORUS (UG/L) FORM 1 1
FLAG FOR PTL 11
FORM ID
REG SPEC LTM NRC DEW DER SAMPLE CLASS
F8.3
F8.3
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR)-ALSC
27
-------
RUNIN99
RUNOF99
Num
Num
8 F8.
8 F8.:
ANNUAL RUNOFF INCHES FROM DIGIT MAP
5 SURFACE WATER RUNOFF (M/YR)
Table 4-3. (Continued)
Variable
RUNOFX99
SAMBL1D
SAMCD02
SAMDP1D
S AMID 1 IF
SAMRT1D
SAM ID
SBRGN99
SCBLK1D
SCD151D
SCR151D
SECDI1D
SECDV1D
SECME98
SECRE1D
SIO211
SIO211F
SITETYP
SO411
SO498
SO411F
SO4DP99
SOBC98
SPRID1D
ST99
STRAT99
T04051D
T06101D
T08151D
T10201 D
T12251D
T14301D
T16351D
T18401D
T20451D
TIMSM1D
TM0151D
TMP601D
TMPA1D
TMPD11D
TMPD21D
TMP BID
TUR02
Type
Num
Num
Char
Num
Char
Num
Num
Char
Char
Char
Char
Num
Char
Num
Num
Num
Char
Char
Num
Num
Char
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Length Format SAS Label
8 F8.3 SURFACE WATER RUNOFF (M/YR)-ALSC
8 F8.
10
8 F8.
12
8 F8.
8 F8.
1
1
1
1
8 F8.
1
8 F8.
8 F8.
8 F8.:
12
9
SAMPLE ID FOR BLANK FORM ID
SAMPLE CODE FORM 2
SAMPLE ID DUPLICATE FORM ID
FLAG FOR SAM ID FORM 1 1
SAMPLE ID ROUTINE FORM ID
SAMPLE IDENTIFICATION NUMBER
NSWS SUBREGION
BLANK SAMPLE COLLECTED AT 1.5 M FORM ID
DUPLICATE SAMPLE COLL AT 1.5 M FORM ID
ROUTINE SAMPLE COLL AT 1.5 M FORM ID
[ SECCHI DEPTH:DISAPPEAR (M) FORM ID
SECCHI DEPTH Y= VISIBLE TO BOTTOM FORM ID
[ MEAN: SECCHI DISK DISAPPEAR, REAPPEAR (M)
[ SECCHI DEPTH: REAPPEAR (M) FORM ID
5 SILICA (MG/L) FORM 1 1
FLAG FORSIO211
SAMPLING SITE OR TYPE CODE
8 F8.3 SULFATE ION (MG/L) FORM 1 1
8 F8.4 SULFATE (UEQ/L)
12
FLAG FOR SO4 11
8 F8.2 SULFATE DEPOSITION (G/M ** 2/YR)
8 F8.4 SUM OF BASE CATIONS (UEQ/L)
6
2
3
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 TI1V
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
8 F8.
SAMPLER ID NUMBER FORM ID
STATE (IWO-LETTER ABBREV)
NSWS STRATA
TEMPERATURE AT 4 OR 5 M (DEGC) FORM ID
TEMPERATURE AT 6 OR 10 M (DEGC) FORM ID
TEMPERATURE AT 8 OR 15 M (DEGC) FORM ID
TEMPERATURE AT 10 OR 20 M (DEGC) FORM ID
TEMPERATURE AT 12 OR 25 M (DEGC) FORM ID
TEMPERATURE AT 14 OR 30 M (DEGC) FORM ID
TEMPERATURE AT 16 OR 35 M (DEGC) FORM ID
TEMPERATURE AT 18 OR 40 M (DEGC) FORM ID
TEMPERATURE AT 20 OR 45 M (DEGC) FORM ID
IBS. TIME SAMPLED (24H) HH:MM FORM ID
TEMPERATURE (DEGC) AT 1.5 M FORM ID
TEMPERATURE AT 0.6 * DEPTH (DEGC) FORM ID
AIR TEMPERATURE (DEGC) FORM ID
TEMP DIP 1.5 M-BOTTOM (DEGC) FORM ID
TEMP DIP 1.5 M-0.6 * DEPTH (DEGC) FORM ID
TEMP AT BOTTOM-1.5 M (DEGC) FORM ID
8 F8.2 TURBIDITY (NTU) FORM 2
28
-------
TUR02F
TXX501D
VISIT ID
WALA99
Char
Num
Num
Num
12
F8.1
F8.
F8.2
FLAG FOR TUR02
TEMPERATURE AT 50 M (DEGC) FORM ID
VISIT FORM ID
WATERSHED AREA/LAKE AREA
Table 4-3. (Continued)
Variable
Type
Length
Format
SAS Label
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT1O_99
WT2C99
WT2T99
Num
Char
Char
Num
Num
Char
Char
Num
Num
Num
Num
25
F8~2
F8.3
F8.3
F8.3
F8.3
F8.4
F8.3
WATERSHED AREA/LAKE AREA-ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA)-ALSC
DISTURB W/l 100 M-OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
TOTAL PHASE II WEIGHT
29
-------
SECTION 5
DEFINITIONS OF VARIABLES
Table 5-1 provides units of measure and extended definitions for variables in the reduced validated (DS3B) and
final (DS4A) ELS-II data sets. The seasonal surveys in which each variable appears are indicated under the following
headings:
SPS Spring Seasonal Survey
SUS Summer Seasonal Survey
FAS Fall Seasonal Survey
Table 5-1 also provides the name of the corresponding variable in the ELS-I database, as documented in the ELS-I data
dictionary (Kanciruk et al, 1986). Tag and flag variables (coded as varT or varF) are not included in Table 5-1, as their
definitions would always be "tag (or flag) for variable X" (see Section 6). In situ measurements are described by Kerfoot
and Faber (1986) and Bonoff and Groeger (1986). EPA methods are from EPA (1983,1987). Processing laboratory
operations and methods are described in Arent et al. (1988).
DROP CODE VARIABLE
A drop code variable (DRPCDE) has been added to each enhanced seasonal data set to facilitate making population
estimates. Using this variable, it is possible to eliminate different subsets of lakes in the database that are not used in
making population estimates. The DRPCDE variable is numeric, with the following values:
0 = ELS-II target population sample
1 = Non-ELS-I index location (fall variability study)
2 = Hypolimnion or bottom water sample (summer data)
3 = Non-ELS-II target lake
This variable is useful because the ELS-II database contains data for lakes that are not among the 145 target ELS-II lakes
used to make estimates of the 3,993 lakes in the ELS-II target population. Nontarget lakes have been assigned a DRPCDE
value of 3. The summer data set contains hypolimnetic data for stratified lakes. In the ELS, index samples were defined as
epilimnetic samples, so hypolimnetic data were not used as index values. Some lakes in the fall data set were visited two
additional times, at independently selected points believed to be the deepest part of the lake, to examine within-season and
site selection variability. The lake visit marked with SITETYP = 'V2' or SITETYP = 'NV' (nonvariability lake) was made to
the site on the lake where the ELS-I sample was collected and is considered to be the "fall index sample" for seasonal
comparisons. Other fall visits were not used to make ELS-II seasonal population estimates and thus were assigned a
DRPCDE=1. In three lakes (1A1-008, 1A1-070, 1A3-046), a SITETYP = 'V2' sample was not collected, thus the visit with
SITETYP = 'Vi' was considered to be the fall index sample and has a DRPCDE=0. Thus, to get the 145 target ELS-II lake
index samples for each seasonal data set, it is necessary to exclude all observations with a DRPCDE > 0.
31
-------
Table 5-1. Definition of Variables, U.S. EPA Eastern Lake Survey - Phase II
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
ACCES1D
ACCO11 ACCO11
X
X X
X
X
ALD02
ALDI98
ALEX 11 ALEX 11
X X
X X
X X
X
X
X
ALKA11 ALKA1 1
X X
X
ALO 02
X X
X
ALTL11 ALTL11
X X
X
Mode by which lake was accessed:
H = helicopter, D = direct vehicle, W = wilderness.
IJ.QO/L Carbon dioxide acidity (or base neutralizing
capacity) is the measured acidity in a sample
due to dissolved CO2, hydronium, and other
acids. Measured in the analytical laboratory
using base titration and Gran analysis.
Mg/L Total monomeric aluminum as determined by
pyrocatechol violet (PCV) colorimetry in the processing
laboratory.
Mg/L Inorganic (labile) monomeric aluminum,
determined by difference: ALDI98 = ALD02 - ALO_02.
Mg/L Extractable aluminum (an estimate of monomeric
aluminum complexes) determined by
complexation with 8-hydroxyquinoline and extraction
with methyl-isobutyl ketone (MIBK) in the processing
laboratory. The extract was then analyzed in the
analytical laboratory using the method described by
Hillmanetal. (1986).
,ueq/L Acid neutralizing capacity is a measure of the amount of
acid necessary to neutralize the carbonate species,
hydroxide, and other bases in a sample. Determined in the
analytical laboratory in an unfiltered, unacidified aliquot,
using acidimetric titration and modified Gran analysis
(Hiliman etal, 1986; Kramer, 1984).
Mg/L Organic (nonexchangeable) monomericaluminum as
determined by pyrocatechol violet (PCV) colorimetry
and the use of a strong cation exchange column in the
processing laboratory.
Mg/L Total aluminum, measured in the analytical laboratory in
an unfiltered, acidified (HNO3) aliquot, using EPA
method 202.2 (AAS, atomic absorption spectroscopy,
graphite furnace).
ANCAT98 ANCAT
X X
X
Ratio of measured cations to measured anions:
ANCAT98 = CATSU98/ANSUM98
(Continued)
32
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
ANDEF98 ANDEF
ANSUM98 ANSUM
BAT ID
COOS ID
C0151D
C0251D
C0351D
C04051D
C0451D
C0551D
BAT ID
BNSTR99 BNSTAR
CON 1
XXX ^eq/L Anion deficit is the measured cations minus the measured
anions: ANDEF98 = CATSU98 - ANSUM98.
XXX ^eq/L Sum of major anion concentrations:
ANSUM98 CL98 + FTL98 + N0398 + HC0398
+ C0398 + S0498.
XXX Batch identification number; lakewater and QA samples
processed and analyzed together were given common
batch numbers. Numeric variable in ELS-II, character
variable in ELS-I.
XXX Number of lakes identified in the ELS-I stratum (see
STRAT99) from the USGS l:250,000-scale maps. Lakes
to be sampled were randomly selected to represent this
frame population.
Profile Measurements
Specific conductance profile measurements were taken
when TMPD21D > 4°C. Profile measurement depths
were determined by maximum lake depth measured
(DPSIT1D).
For the spring and fall surveys, if DPSIT1D < 20 m,
profile measurements were taken at 4 m, and at 2-m
increments to the bottom. If DPSIT1D > 20 m, the
profile was taken at 5 m, and at 5-m increments to the
bottom. For the summer survey, measurements were
taken at 0.5 m and at 1-m increments to 10.5 m, there
after at 2-m increments to 38.5 m.
X ^S/cm Conductivity at 0.5 m.
XXX ^S/cm Conductivity at 1.5 m.
X ^S/cm Conductivity at 2.5 m.
X ^S/cm Conductivity at 3.5 m.
X X MS/cm Conductivity at 4 m (DPSIT1D < 20) or 5 m
(DPSIT1D > 20).
X ^S/cm Conductivity at 4.5 m.
X ^S/cm Conductivity at 5.5 m.
(Continued)
33
-------
Table 5-1. (Continued)
Variable Phase I
Name Name
C06101D CON_2
C0651D
C0751D
C08151D CON_3
C0851D
C0951D
C 1020 ID CON_4
C1051D
C 1225 ID CON_5
C1251D
C 1430 ID CON_6
C1451D
C16351D CON_7
C1651D
C 1840 ID CON_8
C1851D
C20451D CON_9
C2051D
C2251D
C2451D
C2651D
SPS SUS FAS Units
X X MS/cm
X MS/cm
X juS/cm
X X /uS/cm
X /uS/cm
X juS/cm
X X MS/cm
X MS/cm
X X MS/cm
X MS/cm
X X MS/cm
X MS/cm
X X MS/cm
X MS/cm
X X MS/cm
X juS/cm
X X MS/cm
X /uS/cm
X juS/cm
X MS/cm
X MS/cm
Definition
Conductivity at 6 m (DPSIT1D <
(DPCSI1D>20).
Conductivity at 6.5 m.
Conductivity at 7.5 m.
Conductivity at 8 m (DPSIT1D <
(DPCSI1D>20).
Conductivity at 8.5 m.
Conductivity at 9.5 m.
Conductivity at 10 m (DPSIT1D<
(DPSIT1D > 20).
Conductivity at 10.5 m.
Conductivity at 12 m (DPSIT1D <
(DPSIT1D > 20).
Conductivity at 12.5 m.
20) or 10m
20) or 15 m
20) or 20 m
20) or 25 m
Conductivity at 14 m (DPSIT1D < 20) or 30 m
(DPSIT1D > 20).
Conductivity at 14.5 m.
Conductivity at 16 m (DPSIT1 D < 20) or 35 m
(DPSIT1D > 20).
Conductivity at 16.5 m.
Conductivity at 18 m (DPSIT1D<
(DPSIT1D > 20)
Conductivity at 18.5 m.
20) or 40 m
Conductivity at 20 m (DPSIT1D < 20) or 45 m
(DPSIT1D > 20).
Conductivity at 20.5 m.
Conductivity at 22.5 m.
Conductivity at 24.5 m.
Conductivity at 26.5 m.
(Continued)
34
-------
Table 5-1. (Continued)
Variable Phase I
Name Name
C2851D
C3051D
C3251D
C3451D
C3851D
C3851D
CXX501D CON_10
CA11 CA11
CA98 Cal6
CATSU98 CATSUM
CHLOD1D
CHLOR1D
CL11 CL11
CL98 CL16
CLSTR99
CNTY99 COUNTY
SPS SUS
X
X
X
X
X
X
X
X X
X X
X X
X
X
X X
X X
X X
X X
FAS Units Definition
^S/cm Conductivity at 28.5 m.
^S/cm Conductivity at 30.5 m.
^S/cm Conductivity at 32.5 m.
^S/cm Conductivity at 34.5 m.
^S/cm Conductivity at 36.5 m.
^S/cm Conductivity at 38.5 m.
X ^S/cm Conductivity at 50 m.
X mg/L Dissolved calcium, measured in the analytical laboratory
in
filtered, acidified (HNO3) aliquot (EPA method 215.1,
AAS, flame).
X Meq/L Dissolved calcium: CA98 = CA11 * 49.90 Meq/mg.
X IJ.QO/L Summation of major cation concentrations: CATSU98 =
CA98 + MG98 + NA98 + K98 + NH498 + H98.
mL Volume of duplicate sample for chlorophyll analysis.
mL Volume replicate sample for chlorophyll analysis.
X mg/L Chloride ion, measured in the analytical laboratory by ion
chromatography in a filtered, unacidified aliquot (ASTM,
1984;O'Delletal, 1984).
X Meq/L Chloride ion: CL98 = CL1 1 * 28.21 Meq/mg.
X Phase II cluster: 1, 2 or 3.
X Federal Information Processing Standard
(USDC, 1979) state and county code.
CO398 CO316 XXX Meq/L Carbonate, an estimate (Butler, 1982) of:
CO32- = 4.996 x [PIC mg/LI x KjK2
[H+]2
-------
Table 5-1. (Continued)
(Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
COLOR02 COLVAL
which is coded as: CO398 = 60009*
(DICI11/12011)*ALPHA2*33.33
Where: ALPHA2 = Kl* K2/((10**(-PHAC11))
**2 + (10**-PHAC11)*K1 + K1*K2); and Kl =
4.3 x 10-7, and K2 = 5.61 x 10'11.
XXX PCU True color measured in the processing laboratory by first
centrifuging the sample to remove particles, then using a
HACH Model CO-1 Comparator (EPA method 110.2,
modified).
X Comment from Form ID, first part.
X Comment from Form ID, second part.
X Comment from Form ID, first part.
X Comment from Form ID, second part.
X X ,uS/cm Conductivity at 0.6 * site depth (DPSIT1D).
XXX ^S/cm Calculated conductance, sum of the products of ion
concentration times equivalent conductance. Coded as:
CONCA98 = [(CA98*59.47) + (MG98*53.0)
+(K98*73.48) + (NA95*50.08) + (NH498*73.5) +
(H98*349.65) + (SO498*80.0) + (HCO398*44.5) +
(CL98*76.31) + (NO398*71 .42) + (FTL98*55.4) +
(CO398*69.3) + (OH*198)J/1000. This calculation
converts ^eq/L to f^S/cm.
XXX ^S/cm Specific conductance, measured in the analytical
laboratory using a conductivity cell (EPA method 120.1).
X ^S/cm Conductivity at the mid-hypolimnetic depth.
X ^S/cm Conductivity at the mid-metalimnetic depth.
X ^S/cm Conductivity at the top-hypolimnetic depth.
XXX ^S/cm Conductivity at bottom - 1.5 m.
COMNT1DA COMMNT
COMNT1DB COMMNT
COMNTA1D COMMNT
COMNTB1D COMMNT
CON601D CON 60
CONCA98 CONCAL
COND11
CONMH1D
CONMM1D
CONTH1D
CON BID
COND11
36
-------
CRWID1D CRW ID
X
Lake sampling crew identification number.
(Continued)
Table 5-1. (Continued)
Variable
Name
Phase I
Name SPS SUS FAS Units
Definition
DATSH02 DATSHP
DATSH1D DATSHP
DATSMP DATSMP
XXX Date samples were shipped from processing laboratories
to the analytical laboratories.
X Date samples were shipped from processing laboratory to
the analytical laboratories.
XXX Date lake was sampled.
DIC02 DICVAL XXX mg/L Dissolved inorganic carbon, measured in the processing
laboratory on a sample drawn directly into a syringe from
the Van Dorn water sampler, filtered, and analyzed
without
exposure to the atmosphere, using a DOHRMANN
DC-80 carbon
analyzer with infrared spectrophotometric detector
(EPA method 415.2, modified).
DICE 11 DICE 11 XXX mg/L Air-equilibrated dissolved inorganic carbon, measured in
the analytical laboratory in an unfiltered, unacidified
aliquot bubbled with 300 ppm CO2, drawn into a syringe,
filtered, and atmosphere analyzed without exposure to the
(EPA method 415.2 modified, infrared spectro-
photometric detector).
DICI11 DICI11 X XX mg/L Dissolved inorganic carbon, measured in the analytical
laboratory in an unfiltered, unacidified aliquot. The
sample
was drawn into a syringe, filtered, and analyzed without
exposure to the atmosphere (EPA method 415.2
modified, infrared spectrophotometric detector).
XXX miles Distance of the lake from the Atlantic Ocean. A
calculated variable for lakes within 125 miles from the
coastline (otherwise value is missing). Note that the units
are in miles. DISM units were incorrectly labeled as km
in ELS-I.
DOC 11 XXX mg/L Dissolved organic carbon, measured in the analytical
laboratory in a filtered, acidified (H2S04) aliquot (EPA
method 415.2, infrared spectrophotometric detector).
DISM99 DISM
DOC 11
37
-------
(Continued)
Table 5-1. (Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
DOFIA1D
DOFIT1D
DOINT1D
X
X
X
DOMH1D
DOMM1D
DOTH ID
DO_051D
DO 15 ID X
DO_601D X
DO BID X
DPCAT1D DP CAT X
DPMH1D
DPMM1D
DPSCB1D
DPSCM1D
DPSITID SITDPM X
DPSITX1D X
DPTH1D
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
m
m
m
m
m
m
Dissolved oxygen final actual calibration value
form ID.
Dissolved oxygen final theoretical calibration
value form ID.
Dissolved oxygen initial theoretical calibration
value form ID.
Dissolved oxygen at the mid-hypolimnetic depth.
Dissolved oxygen at the mid-metalimnetic depth.
Dissolved oxygen at the top-hypolimnetic depth.
Dissolved oxygen at 0.5 m.
Dissolved oxygen at 1.5 m.
Dissolved oxygen at 0.6* depth.
Dissolved oxygen at bottom - 1.5 m.
Lake depth category, 4 (if DPSITID < 20 m) or
5 (if DPSITID > 20m).
Mid-hypolimnetic depth.
Mid-metalimnetic depth.
Depth sample collected at bottom - 1.5 m.
Depth sample collected at mid-hypolimnetic
depth (m).
Sampling site depth, measured using a depth
sounder or weighted line. Not necessarily
maximum lake depth.
Maximum lake depth from ALSC bathymetry.
Top hypolimnetic depth.
38
-------
Table 5-1. (Continued)
(Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
DP 60ID DP 60
DP BID DP B
DRPCDE
ELEV99 ELEV
ELEVX99
FEU FEU
FTL11
FTL98
H98
FTL11
FTL16
H16
HCO398 HCO316
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
m Sixty percent of site depth: 0.6 * DPSIT1D.
m Depth at which bottom temperature/conductance was
measured: DP_B = DPSIT1D - 1.5 m.
Drop code variable used to exclude nontarget
observations. Coded as: 0=ELS-II target population
sample, 1 = non-ELS-I index location (Fall Variability
Study), 2=hypolimnion or bottom water sample (summer
data), 3=non- ELS-II target lake. Only present in the
enhanced (final) seasonal data sets.
m Lake elevation, taken from USGS topographic maps
(Subregion 1 D values revised from those in ELS-I).
m Lake elevation from ALSC data.
Mg/L Dissolved iron, measured in the analytical laboratory in a
filtered, acidified (HNO3) aliquot (EPA method 236.1,
AAS, flame).
mg/L Total dissolved fluoride, measured in the analytical
laboratory in a filtered, unacidified aliquot, analyzed
using
an ion-selective electrode (ISE, EPA method 340.2,
modified).
Total dissolved fluoride: FTL98 = FTL1 1*52.64
Hydrogen ion concentration: coded as H98 =
(10**(-PHAC1 1))* 1000000.
J.QO/L Bicarbonate, an estimate (Butler, 1982) of:
HCO3.= 5.080 x [DICmg/LI x [H+1K,
[H+]2 + [H+ ]Kj + KjK2
which is coded as: HCO398 = 61017 *
(DICI11/12011) * ALPHA1 * 16.39; where
ALPHA1 = ((10**(-PHAC11))*K1)/((10**
(-PHAC11))**2 + (10**-PHAC11)*K1+K1*
K2); and Kl = 4.3x 10'7' and K2 = 5.61 x
io-n.
39
-------
Table 5-1. (Continued)
(Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
HDEP99 HDEP
XXX g/m2
HYDID1D HYD ID X X X
HYTYP99 HYDROTYP XXX
INOUT99 IN OUT XXX
Kll
Kll
XXX mg/L
Average annual wet hydrogen ion deposition,
derived from 1980-1982 Acid Deposition
System data (Watson and Olsen, 1984). Depo-
sition values for lakes were assigned by
contouring both the hydrogen ion concentrations
measured in precipitation and the precipitation
volumes (see PRCIP99), interpolating values for
3.75 minute latitudel/longitude cells, and
multiplying these paired cell values.
Identification number for the HYDROLAB meter
used for field measurements
Hydrologic lake type, defined from geographic
data. Classes are: CLOSED, DRAINAGE,
RESERVOIR, and SEEPAGE
Presence and/or absence of inlets and outlets, as
determined from topographic maps: I/O = inlets
and outlets present; NI/O = no inlets, outlets
present; I/NO = inlets present, no outlets; NI/NO
no inlets or outlets; RES = reservoir.
Dissolved potassium, measured in the analytical
laboratory in a filtered, acidified (HNO3)
aliquot (EPA method 258.1,AAS, flame).
K98
K16
XXX
LABNA02 LABNAM XXX
LAKE ID LAKE ID X X X
Dissolved potassium: K98 = Ki 1*25.57
Name of the analytical laboratory that performed
the analytical analyses.
Seven-character unique identification code
assigned to each lake. The first character
represents the region (1, 2, or 3); the second
character, the subregion; the third character, the
alkalinity map class; a dash; and the last three
digits are the assigned lake number. The first
three characters also designate the stratum (see
STRAT99).
(Continued)
40
-------
Table 5-1. (Continued)
Variable Phase I
Name Name
SPS SUS FAS Units
Definition
LAKNA1D LAKENAME XXX
LAT99
LKNAM99
LAT
XXX
LATDD99 LAT DD X X X dee
LKID99 LAKEID1 XXX
XXX
LKSIZ99 LAKE_SIZ X X X ha
LKSIZX99 X X X ha
LKVOL99 LAKE VOL XXX 106m3
LKVOLX99
XXX 106m3
LNGDD99 LONG DD X X X deg
LONG99 LONG
XXX
MAPBG99 MAP BIG X X X
Lake name taken from USGS topographic maps.
When a number of small lakes were identified by
only one name on the map, another qualifier was
added to the name, such as "southern," to identify
the lake. Where no name was listed, "(NO
NAME)" was entered into the database as the
lake name.
Latitude taken from the USGS topographic maps
in DD-MM-SS (degrees-minutes-seconds)
format.
Latitude expressed as degrees and decimal
degrees in DD.DDDD format.
ELS LAKE_ID cross reference with Adirondack
Lake Survey Corporation (ALSC) ponds
identification code (else missing).
Lake name taken from USGS topographic maps.
When a number of small lakes were identified by
only one name on the map, another qualifier was
added to the name, such as "southern," to identify
the lake. Where no name was listed, "(NO
NAME)" was entered into the database as the
lake name.
Lake surface area, measured using an electronic
planimeter on USGS topographic maps.
Lake surface area from ALSC bathymetry.
Estimated lake volume: LKVOLO9 =
((LKSIZ99*10**4)*DPSIT1D*0.464)/10**6.
Lake volume from ALSC bathymetry.
Longitude expressed as degrees and decimal
degrees in DDD.DDDD format.
Longitude as read from the USGS topographic
maps, in DDD-MM-SS format.
Name of the 1:250,000 USGS topographic map
on which the lake is located.
42
-------
Table 5-1. (Continued)
(Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
MAPSM99 MAP SML XXX
MG11
MG98
MN11
NA11
NA98
NH411
NH498
NO311
MG11
MG16
MN11
NA11
NA16
NH411
NH416
NO311
XXX mg/L
XXX
XXX
XXX mg/L
XXX
XXX mg/L
XXX
XXX mg/L
NO398 NO316 XXX Meq/L
NO3DP99 NO3DEP XXX g/m2
Name of the 15 minute or 7.5 minute USGS
topographic map on which the lake is located.
Dissolved magnesium, measured in the analytical
laboratory in a filtered, acidified (HNO3) aliquot
(EPA method 242.1, AAS, flame).
Dissolved magnesium: MG98 = MG1 1*82.26
Dissolved manganese, measured in the analytical
laboratory in a filtered, acidified (HNO3) aliquot
(EPA method 243.1, AAS, flame).
Dissolved sodium, measured in the analytical
laboratory in a filtered, acidified (HNO3) aliquot
(EPA method 273.1, AAS, flame).
Dissolved sodium: NA98 = NA1 1*43.50
Ammonium ion, measured in the analytical
laboratory in a sample from the filtered, acidified
(H2SO4) aliquot (EPA method 350.1,
colorimetric, automated).
Ammonium ion: NH498 = NH41 1*55.44
NVLAK1D
X
Nitrate ion, measured in the analytical laboratory
by ion chromatography in a filtered, unacidified
aliquot (ASTM, 1984; O'Dell et al., 1984).
Nitrate ion: N0398 =N0311*16.13 Meq/mg.
Average annual nitrate ion deposition, derived
from 1980-1982 Acid Deposition System data
(Watson and Olsen, 1984). Lake
deposition values were assigned by contouring
both the nitrate ion concentrations measured in
precipitation and the precipitation volumes (see
PRCIP99), interpolating values for 3.75 minute
latitude/longitude cells, and multiplying these
paired cell values.
Non-Fall Variability Study lake ORN).
43
-------
(Continued)
Table 5-1. (Continued)
Variable
Name
OB SID ID
ORG1O98
Phase I
Name
ORGION
SPS SUS FAS
X
XXX
Units Definition
Identification number of the observer.
Meq/L Estimate of the organic anion concentration: ORG1O98 =
PH0051D
PH0151D
PH02
PHAC11
PHAC11
PHAL11
PHAL11
PHEQ11 PHEQ11
PHMH1D
PHMM1D
PHTH1D
PH 60ID PH 60
K*CT/(K + (10**(-PHAC11))); where: K= 10**(-Pk);
CT = DOC11* 10; and PK = 0.96 + 0.9*PHAC11 -
0.039*PHAC11 **2.
X pH pH measurement at 0.5 m.
XXX pH pH measurement at 1.5 m.
XXX pH pH measured in the processing laboratory on a sample
drawn directly into a syringe from the Van Dorn water
sampler, analyzed without exposure to the atmosphere.
PH02 is the pH variable used to make ELS-II
population estimates.
XXX pH Initial pH from the acidity titration, measured in the
analytical laboratory. A sample from an unfiltered,
unacidified aliquot was placed into a CO2 free titration
vessel and stirred. The pH was measured with an
electrode (without exposure to the atmosphere) before
addition of base titrant.
XXX pH Initial pH from the alkalinity titration, measured in the
analytical laboratory. A sample from the unfiltered,
unacidified aliquot was placed into a titration vessel (not
CO2 free) and stirred. The pH was measured with an
electrode before the first addition of acid titrant.
X X X pH Air-equilibrated pH, measured in the analytical
laboratory in an unfiltered, unacidified aliquot bubbled
with 300 ppm CO2. (EPA method 150.1, electrode).
X pH pH at mid-hypolimnetic depth.
X pH pH at mid-metalimnetic depth.
X pH pH at top-hypolimnetic depth.
X X pH pH at 0.6 * DPSIT1D.
(Continued)
44
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name SPS SUS FAS Units
Definition
PH BID
PRCIP99
PH B
PRECIP
used
PREC1D
PRECO1D
PYL1 1
PTL11
RGSPC99 REG SPC
RPREC1D
X X X pH pHatDPSITID-1.5m.
XXX m/yr Annual precipitation. For ELS Region 1, derived from
30-year precipitation norm values (1951-1980) for 500
stations (National Climate Center, NOAA). Values were
assigned for each lake by contouring the precipitation
volume data and interpolating values for 3.75 minute
latitude/longitude cells. Precipitation cell values were
to weight the H+, SO42", and NO3 concentrations in
precipitation samples.
XXX Observed precipitation: none, rain, snow or sleet.
X X 'Previous' or 'current' observed precipitation (see
PREC1D).
XXX Mg/L Total phosphorous, measured in the analytical laboratory
in an unfiltered, acidified (H2SO4) aliquot, using either of
two automated, colormetric phosphomolybdate methods:
for normal phosphorus levels, using a 15-mm absorption
cell; for low levels, a preliminary method using 50-mm
absorption cell was employed (USGS method 1-4600-
78).
XXX Reason for lake being sampled: REGULAR = part of the
probability sample. REG/SPC/XXX = part of the
probability sample, but also identified as being of special
interest. SPC/XXX = of special interest only. The 'XXX'
gives the reason for the special interest:
XXX codes:
LTM = an EPA long-term monitoring lake
NRC = suggested by the National Research Council
DEW = suggested by the state of New Jersey
XXX Rate of observed precipitation: light, moderate, or heavy.
(Continued)
45
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
RT99
RT
X X X yr Estimated hydraulic residence time, defined as years
required to replace the volume of the lake. Calculated
only
or drainage lakes and reservoirs (see HYTYP99).
RT99 - LA x site depth
RTX99 X
RUNIN99 RUNIN X
RUNOF99 RUNOFF X
RUNOFX99 X
SAMBL1D
SAMBT1D
SAMCD02 SAMCOD X
SAMD11D
SAMD21D
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
runoff x (WSA - LA) + (precip x LA)
where: WSA = watershed area; LA = lake area.
Coded as: RT99 = ((LKSIZ99*10**4) *
(DPSIT1D*0.464))/(((RUNIN99*2.54* 10**-2) *
((WSHED99*10**4) - (LKSIZ99*10**4))) +
((LKSIZ99*! 0**4)*(PRCIP99))).
yr Residence time from ALSC bathymetry.
in/yr Surface water runoff interpolated from USGS map.
m/yr Surface water runoff interpolated from USGS map
(Busby, 1966). RUNOF99 = RUNIN99* 0.025 rn/in.
rn/yr Surface water runoff from ALSC data.
Identification number for blank sample.
Identification number for blank sample at bottom - 1.5 rn.
Sample code indicating the type of sample:
R = routine sample, D = duplicate sample, TD =
processing lab duplicate, B = deionized water blank,
S = lab split.
First duplicate sample identification number (see
SAMJD).
Second duplicate sample identification number (see
SAMJD).
(Continue)
46
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
SAMDP1D
SAMMH1D
SAMRT1D
SAMSF1D
SAM ID SAM ID
X
X
X
X
XXX
SBRGN99 SUB RON XXX
Duplicate sample identification number (see SAM_ID).
Sample ID mid-hypolimnetic depth (6H11)
Routine sample identification number (see SAM_ID).
Sample ID surface -1.5m (6E11)
Identifies individual samples within a batch (see
BATJD). In combination, BATJD and SAMJD are
the unique sample identifiers.
Subregions are areas within each region that are similar
in water quality, physiography, vegetation, climate, and
soil. The ELS-II used a letter A-E concatenated with the
region number (All data from ELS region 1) as the
subregion identifier. The 5 subregions in the ELS-II were:
1A: Adirondacks
IB: Poconos/Catskills
1C: Central New England
ID: Southern New England
IE: Maine
SCBLK1D
X
X
'Y' or TSf' indicating whether a blank sample was
collected.
SCD151D
SCDBT1D
SCDM1 D
SCR151D
SCRBT1D
SCRMH1D
X X
X
X
X X
X
X
Duplicate sample collected at 1.5 m form ID.
Duplicate sample collected at bottom - 1.5 m.
Duplicate sample collected at mid-hypolimnetic depth.
Routine sample collected at 1.5 m.
Routine sample collected at 1.5 m. Routine sample
collected at bottom - 1.5 m.
Routine sample collected at mid-hypolimnetic depth.
(Continued)
47
-------
Table 5-1. (Continued)
Variable
Name
SECDI1D
SECDV1D
SECME98
Phase I
Name
SECDIS
SECMEAN
SPS
X
X
X
SUS FAS
X X
X
X X
Units Definition
rn Secchi disk disappearance depth.
'Y' indicates Secchi disk was visible to lake bottom.
rn Mean of Secchi disk disappearance and reappearance
SECRE1D SECREA X
SIO211
SITETYP
SIO211
X
X
depths. SECME98 is the lake depth if the disk was visible
on the lake bottom.
X X rn Secchi disk reappearance depth.
X X rng/L Silica, measured in the analytical laboratory in an
unfiltered aliquot (USGS method 1-2700-78,
colorimetric, molybdate blue, automated method).
X X Sampling site or type code. In summer: E= epilimnion
(0.5 or 1.5 m depth), H=mid-hypolimnion, BTM=bottom
(1.5 m above lake bottom). In fall: Vi first visit Fall
Variability Study, V2 = second visit Fall Variability
Study (sample taken at ELS-1 location), V3=third visit
Fall Variability Study, NV = non-fall variability site
(only one fall visit). In spring: value is missing (all
samples from epilimnion).
SMSTR1D
SMTRD
SO411
SO498
SO411
SO416
X
X
SO4DP99 SO4DEP X
X Sample identification number for subset triplicate.
X Sample identification number for triplicate.
X X mg/L Sulfate ion, measured in the analytical laboratory by ion
chromatography in a filtered, unacidified aliquot (ASTM,
1984;O'Delletal, 1984).
X X Meq/L Sulfate ion: SO498 = SO411*20.82 Meq/mg.
X X g/m2 Average annual sulfate ion deposition, derived from
1980-1982 Acid Deposition System data (Watson and
Olsen, 1984). Lake deposition values were assigned by
contouring both the sulfate ion concentrations
(Continued)
48
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name
SPS SUS FAS Units
Definition
measured in precipitation and the precipitation volumes
(see PRCIP99), interpolating values for 3.75 minute
latitude/longitude cells, and multiplying these paired cell
values.
XXX Meq/L Sum of base cations: 50BC98 = NA98 + K98 + CA98 +
MG98.
X X Split code, indicates that duplicate sample aliquots were
sent to cooperating analytical laboratories.
X Identification number of the individual doing the
sampling.
XXX State: standard two-character U.S. Postal Service
abbreviation.
XXX ELS-I sampling strata ID code. ELS region, subregion,
and expected alkalinity map class were used as
stratification factors in ELS-I. Coded as a concatenation
of the ELS subregion (SBRGN99) and alkalinity map
class (1, 2, or 3).
SOBC98 SOBC
SPLCD02 SPLCOD
SPRID1D
ST99
ST
STRAT99 STRAT
SUBID1D
T0051D
T0151D
TM0151D
T0251D
T0351D
T04051D TMP_1
T0451D
T0551D
T06101D TMP_2
T0651D
X
X
X
X
X
X
X
X
X
X
X
°c
°c
X °C
°c
°c
X °C
°c
°c
X C
°c
Identification number for the subset batch.
Temperature at 0.5 m.
Temperature at 1.5 m.
Temperature at 1.5 m.
Temperature at 2.5 m.
Temperature at 3.5 m.
Temperature at 4 or 5
Temperature at 4.5 m.
Temperature at 5.5 m.
Temperature at 6 or 10
Temperature at 6.5 m.
49
-------
Table 5-1. (Continued)
Variable Phase I
Name Name
T0751D
T08151D TMP_3
T0851D
T0951D
T 1020 ID TMP_4
T1051D
T 1225 ID TMP_5
T1251D
T14301D TMP_6
T1451D
T16351D TMP_7
T1651D
T 1840 ID TMP_8
T1851D
T20451D TMP 9
T2051D
T2251D
T2451D
T2651D
T2851D
T3051D
T3251D
T3451D
T3651D
T3851D
SPS SUS FAS
X
X X
X
X
X X
X
X X
X
X X
X
X X
X
X X
X
X X
X
X
X
X
X
X
X
X
X
X
Units
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
°c
(Continued)
Definition
Temperature at 7.5 m.
Temperature at 8 or 15 rn.
Temperature at 8.5 m.
Temperature at 9.5 m.
Temperature at 10 or 20 m.
Temperature at 10.5 m.
Temperature at 12 or 25 m.
Temperature at 12.5 m.
Temperature at 14 or 30 m.
Temperature at 14.5 m.
Temperature at 16 or 35 m.
Temperature at 16.5 m.
Temperature at 18 or 40 m.
Temperature at 18.5 m.
Temperature at 20 or 45 m.
Temperature at 20.5 m.
Temperature at 22.5 m.
Temperature at 24.5 m.
Temperature at 26.5 m.
Temperature at 28.5 m.
Temperature at 30.5 m.
Temperature at 32.5 m.
Temperature at 34.5 m.
Temperature at 36.5 m.
Temperature at 38.5 m.
(Continued)
50
-------
Table 5-1. (Continued)
Variable Phase I
Name Name
TXX501D TMP 10
TIMRE1D
TIMSM1D
TMP601D TMP_60
TMPA1D AIRTMP
TMPD11D TMPDF
TMPD21D TMPDF2
TMPMH1D
TMPMM1D
TMPTH1D
TMP BID TMP B
TUR02 TURVAL
VISIT ID
WALA99 WALA
WALAX99
WDIR1D
SPS SUS FAS Units Definition
X X °C Temperature at 50 m.
X Time the processing laboratory received the sample in
HH:MM format (24 h), form ID.
XXX Time lake was sampled, in HH:MM format (24 h).
X X °C Temperature at 0.6 * DPSIT1D.
X X X °C Air temperature measured from the helicopter with a
thermometer.
X X °C Difference between top and bottom temperatures.
X X °C Difference between temperature at 0.6* DPSIT1D and
bottom, TMPD21D = TMP601D - TMP_B1D.
X °C Temperature at mid-hypolimnetic depth.
X °C Temperature at mid-metalimnetic depth.
X °C Temperature at top-hypolimnetic depth.
X X X °C Temperature at DPSIT1D - 1.5m.
XXX NTU Turbidity, measured in the processing laboratory using a
MONITEK model 2 Inephelometer, reported in
nephelometric turbidity units (EPA method 180.1).
X X Number of lake visit.
XXX Ratio of watershed area to lake area. Watershed area
includes lake area.
XXX Ratio of watershed area to lake area from ALSC
bathymetric data.
XXX Estimated wind direction; N, NE, SE, S, SW, W or NW.
(Continued)
51
-------
Table 5-1. (Continued)
Variable
Name
Phase I
Name SPS SUS FAS Units
Definition
WSDIS99 WS DIS
WSHED99 WSHED
WSHEDX99
WSOTH99 WS_OTH
WSPD1D
WT1M99
WT1O 99
WT2C99
WT2T99
XXX Disturbances of the natural environment in a watershed
within 100 m of the shore as noted by field crew, where:
D=dwellings, L=logging, R=roads, I = industry,
M=mining, S=livestock.
X X X ha Watershed area, the geographic area from which surface
water drains into a particular lake, as determined using
an electronic planimeter on USGS topographic maps.
Lake area was included in watershed area.
X X X ha Watershed area from ALSC data.
XXX Disturbances of the natural environment in a watershed
within 100 m of the shore, other than those described by
WSDIS99, noted by field crew.
XXX Estimated wind speed; no wind, light, moderate, or
strong.
XXX Modified (final) ELS-I sample weighting factor. Used to
make ELS-I population estimates and in ELS-II
population variance estimates.
XXX Original (at time of ELS-II site selection) ELS-I sample
weighting factor. Used in calculating the final ELS-II
sample weighting factor and in ELS-II population
variance estimates.
XXX Conditional ELS-II inclusion weighting factor. Used in
calculating the final ELS-II sample weighting factor and
in ELS-II population variance estimates.
XXX ELS-II sample weighting factor used in making
population estimates; calculated as WT2T99=
WT1O_99*WT2C99. The weighting factor indicates how
many lakes in the ELS-II target population are
represented by the sample lake.
52
-------
SECTION 6
DATA TAGS AND FLAGS
Some variables in the ELS-I1 databases are designated as "tags" or "flags," that is, they provide information that
qualifies individual values. Tags and flags are present only in the validated (DS3B) data set. Tags are one-letter codes that
qualify data as recorded on the field or laboratory data forms. Tag variable names have the same name as the variable they
qualify, but with the suffix T". For example, the variable MN11 has a tag variable designated MN1 IT. A list of the tag
codes and their definitions is given in Table 6-1. Flags are two-character codes that were entered during the data verification
and validation processes. Flag variable names have the same name as the variable qualified but with the suffix "F". For
example, MN11 has a flag variable designated MN11 F. A list of the flag codes and their definitions is given in Table 6-2.
Both tags and flags can contain multiple codes. If a variable has multiple codes, the codes are concatenated (no blank
spaces) in alphabetic order.
NOTE: With three exceptions, flags and tags in the ELS-II data sets apply only to values BEFORE
reverification and the special data assessment. Data values were changed in the reverification process and thus the
flags and tags may no longer apply to all of the values in the database. Only the UO and Ul flags (validation outliers),
and X flags are completely correct.
The old flags and tags have been kept in the database because they may be of some use in interpreting suspect data
points. All changes made in the database during the reverification process are documented in Appendix A of the ELS-II QA
report (Mitchell-Hall et al, 1989).
53
-------
Table 6-1. Tag Code Definitions, U.S. EPA Eastern Lake Survey - II
Code Definition
A Instrument unstable.
B Redone, first reading not acceptable.
C Instruments and sampling gear not vertical in water column.
D Slow stabilization.
E Sample destroyed during shipment.
F Results outside of quality assurance criteria, with consent of the quality assurance manager.
G Atypical result; already reanalyzed and confirmed by the laboratory manager.
H Holding time exceeded quality assurance criteria; form 19 only.
J Results not available; insufficient sample volume shipped to the analytical laboratory from the
field.
K Results not available; entire aliquot not shipped.
L Results not available due to interference.
M Results not available; sample lost or destroyed by analytical laboratory.
N Not required.
P Results outside of quality assurance criteria, but insufficient volume for reanalysis.
0 Results outside of quality assurance criteria.
R Results from reanalysis.
S Contamination suspected.
T Leaking container.
U Results not required by procedure; unnecessary.
V Anion-cation balance (% ion balance difference) outside criteria due to high DOC.
W Percent difference (%D) calculation (Form 14) outside criteria due to high DOC.
X Available for miscellaneous comments in the field only.
Y Available for miscellaneous comments in the field only.
Z Available for miscellaneous comments in the field only.
54
-------
Table 6-2. Flag Code Definitions, U.S. EPA Eastern Lake Survey Phase II
Code Definition
AO Anion/cation percent ion balance difference was outside of criteria due to unknown cause.
Al Anion/cation percent ion balance difference was outside of criteria due to other anion/cation not
considered in calculation.
A2 Anion/cation percent ion balance difference was outside of criteria due to anion contamination.
A3 Anion/cation percent ion balance difference was outside of criteria due to cation contamination.
A4 Anion/cation percent ion balance difference was outside of criteria due to unmeasured organic
protolytes (fits Oliver Model).
AS Anion/cation percent ion balance difference was outside of criteria due to possible analytical error;
anion concentration too high.
A6 Anion/cation percent ion balance difference was outside of criteria due to possible analytical error;
cation concentration too low.
A7 Anion/cation percent ion balance difference was outside of criteria due to possible analytical error;
anion concentration too low.
A8 Anion/cation percent ion balance difference was outside of criteria due to possible analytical error;
cation concentration too high.
A9 Anion/cation percent ion balance difference was outside of criteria due to possible analytical error;
alkalinity measurement.
BO External (field) blank was above expected criteria. (For pH, DIG, DOC, specific conductance,
ANC, and BNC determinations where the blank was above expected criteria).
Bl Internal (laboratory) blank was greater than the criteria for pH, DIG, DOC, and specific
conductance.
B2 External (field) blank was above expected criteria and contributed more than 20% to sample
concentrations. (Flag not used for pH, DIC, DOC, specific conductance, acidity, and alkalinity
determinations.)
B3 Internal (laboratory) blank was more than twice the required detection limit and contributed more
than 10% to the sample concentrations. (Flag not used for pH, DIC, DOC, specific conductance,
acidity or alkalinity determinations.)
Be Potential negative sample bias based on internal (laboratory) blank data.
(Continued)
55
-------
Table 6-2. (Continued)
Code Definition
B5 Potential negative sample bias based on external (field) blank data.
CO Percent conductance difference was outside of criteria due to an unknown cause.
C1 Percent conductance difference was outside of criteria due to possible analytical error; anion
concentration too high.
C2 Percent conductance difference was outside of criteria due to anion contamination.
C3 Percent conductance difference was outside of criteria due to cation contamination.
C4 Percent conductance difference was outside of criteria due to unmeasured organic anions (fits
Oliver Model).
C5 Percent conductance difference was outside of criteria due to possible analytical error in
conductivity measurement.
C6 Percent conductance difference was outside of criteria due to possible analytical error; anion
concentration too low.
C7 Percent conductance difference was outside of criteria due to unmeasured anions/cations;
anions/cations not considered in calculation (does not fit Oliver Model).
C8 Percent conductance difference was outside of criteria due to possible analytical error; cation
concentration too low.
C9 Percent conductance difference was outside of criteria due to possible analytical error; cation
concentration too high.
Dl External (field) duplicate precision exceeded the maximum expected percent relative standard
deviation but either the routine or the duplicate concentration was greater th ten times the required
detection limit.
D2 External (field) duplicate precision exceeded the system precision (the P95 of a standard normal
distribution based on known audit concentrations).
D3 Internal (laboratory) duplicate precision exceeded the maximum required percent relative standard
deviation, and both the routine and duplicate sample concentrations were greater than ten times the
required detection limit.
FO Percent conductance difference exceeded criteria when in-situ field conductivity value y
substituted.
Fl Hillman/Krammer protolyte analysis program indicated field pH problem when
streamside pH value was substituted.
56
-------
(Continued)
Table 6-2. (Continued)
Code Definition
F2 Hillman/Kramrner protolyte analysis program indicated unexplained field pH/DIC problem when
streamside pH value was substituted.
F3 Hillman/Krammer protolyte analysis program indicated field problem; mobile processing
laboratory pH.
F4 Hillman/Krammer protolyte analysis program indicated field problem; mobile processing
laboratory DIC.
F5 Hillman/Krammer protolyte analysis program indicated field problem; unexplained (pH/DIC).
F6 Percent conductance difference exceeded criteria when mobile processing laboratory conductivity
value was substituted.
HO The maximum holding time criteria were not met.
LI Instrumental detection limit exceeded required detection limit and form 11 sample concentrations
were less than ten times the instrumental detection limit.
NO Audit sample value exceeded upper control limit.
Nl Audit sample value below control limit.
N2 Audit sample exceeded control limits due to suspect audit sample preparation.
PO Laboratory problem; initial alkalinity pH.
P1 Laboratory problem; initial acidity pH.
P2 Laboratory problem; unexplained, initial alkalinity/acidity pH.
P3 Laboratory problem; initial DIC.
P4 Laboratory problem; air equilibrated pH/DIC.
P5 Laboratory problem; unexplained, initial pH/DIC.
P6 Laboratory problem; alkalinity determination.
P7 Laboratory problem; acidity determination.
Ql Quality control check sample was above contractual criteria.
Q2 Quality control check sample was below contractual criteria.
Q3 Insufficient number of quality control check samples were measured.
(Continued)
57
-------
Table 6-2. (Continued)
Code Definition
Q4 No quality control check sample was performed.
Q5 Detection limit quality control check sample was not two to three times the contract required
detection limit and the measured value was outside twenty percent of the theoretical
concentration.
UO Known error based on relationships with other variables and/or impossible values or value is
missing; substitution was made in Enhanced (Final) data sets.
Ul Known error based on relationships with other variables, impossible value, or value is missing;
data was deleted from the final data set and was not used in any of the calculations that created the
final data set. The data was NOT substituted in the final set because an alternate sample was
available (routine or duplicate) or the data was ..needed to make population estimates (summer
hypolimnion sample, alternate visit in ti Fall Variability Study, or nontarget lake).
VO Data value represents the average from the duplicate and routine measurement of the lake sample.
WO Data value has possible measurement error, based on relationships with other variables.
XO Invalid but confirmed databased on quality assurance review. These data should not I included in
any statistical review.
XI ALEX greater than ALTL where ALEX is greater than or equal to 0.015 mg/L and ALEX is
greater than ALTL by 0.010 mg/L.
X2 Invalid but confirmed data; potential aliquot switch.
X3 Invalid but confirmed data; potential gross aliquot or parameter contamination.
X4 Invalid but confirmed data; potential sample switch.
X8 Suspect or potential aliquot contamination.
ZO Original value was less than zero and has been replaced with zero.
58
-------
SECTION 7
REFERENCES
Arent, U., M.O. Morison, and C.S. Soong. 1988. Eastern Lake Survey-Phase II, National Stream Survey-Phase 4
Processing Laboratory Operations Report. EPA 600/4-88/025, U.S Environmental Protection Agency, Office of
Research and Development, Washington B.C.
ASTM. 1984. Annual Book Of ASTM Standards, Vol. 11.01, Standard Test Methods for Anions in Water by Ion
Chromatography. American Society for Testing and Materials, Philadelphia, Pennsylvania.
Bonoff, M.B., and A.W. Groeger. 1986. National Surface Water Survey, Western Lake Survey—Phase 4 Field Operations
Report [internal Report]. Environmental Monitoring Systems Laboratory, U.S. Environmental Protection Agency,
Las Vegas, Nevada.
Busby, M.W. 1966. "Annual Runoff in the Conterminous United States." In Hydrologic Investigations, Atlas HA-212.
Geological Survey, U.S. Department of the Interior, Reston, Virginia.
Butler, J.N. 1982. Carbon Dioxide Equilibria and their Applications. Addison-Wesley, Reading, Massachusetts.
Cusimano, R.F., J.P. Baker, W.J. Warren-Hicks, V.Lesser, W.W. Taylor, M.C. Fabrizio, D.B. Hayes, and B.P. Baldigo.
1990. Fish Communities in Lakes in Subregion 2B (Upper Peninsula of Michigan) in Relation to Lake Acidity.
EPA/600/3-89/021. U.S. Environmental Protection Agency, Washington, D.C.
EPA. 1983. Methods for Chemical Analysis of Water and Wastes. EPA/600/4-79/020. U.S. Environmental Protection
Agency, Washington, D.C.
EPA. 1987. Handbook of Methods for Acid Deposition Studies: Laboratory Analysis for Surface Water Chemistry.
EPA/600/4-7/026. U.S. Environmental Protection Agency, Washington, D.C.
Herlihy, A.T., D.H. Landers, R.F. Cusimano, W.S. Overton, P.J. Wigington, Jr., A.K. Pollack, and T.E.
Mitchell-Hall. 1991. Temporal Variability in Lakewater Chemistry in the Northeastern United
States: Results of Phase II of the Eastern Lake Survey. EPA/600/3-91 /012. U.S. Environmental
Protection Agency, Washington, D.C.
Hillman, D.C.J., J.F. Potter, and S.J. Simon. 1986. National Surface Water Survey, Eastern Lake Survey- Phase I,
Analytical Methods Manual. EPA/600/4-88/009. U.S. Environmental Protection Agency, Washington, D.C.
Kanciruk, P., M. Gentry., R. McCord, L Hook, J. Eilers, and M. Best. 1986. National Surface Water
Survey: Eastern Lake Survey - Phase 1, Database Dictionary. ORNL/TM-10153. Environmental Sciences
Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (Publication 2778).
Kanciruk, P., M. Gentry. R. McCord, L Hook, J. Eilers, and M. Best. 1987. National Surface Water Survey'.Western Lake
Survey - Phase I, Data Base Dictionary. ORNL/TM-10307. Environmental Sciences Division, Oak Ridge National
Laboratory, Oak Ridge, Tennessee (Publication 2838).
Kaufmann, P.R., A.T. Herlihy, J.W. Elwood, M.E. Mitch, W.S. Overton, M.J. Sale, J.J. Messer, K.A. Cougan, D.V. Peck,
K.H. Reckhow, A.J. Kinney, S.J. Christie, D.D. Bsroawn, C.A. Hagley, and H.I. Jager. 1988. Chemical
Characteristics of Streams in the Mid-Atlantic and Southeastern United States. Volume I: Population Descriptions
andPhysico-Chemical Relationships. EPA/600/3-88/021 a. U.S. Environmental Protection Agency, Washington,
D.C., 397pp.
59
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Landers, D.H., J.M. Eilers, D.F. Brakke, W.S. Overton, P.E. Kellar, M.E. Silverstein, R.D. Schnobrod, R.E. Crowe, R.A.
Linthurst, J.M. Omernik, S.A. Teague, and E.P. Meier. 1987. Characteristics of Lakes in the Western United
States. Volume I. Population Descriptions andPhysico-Chemical Relationships. EPA/600/3-86/054a. U.S.
Environmental Protection Agency, Washington, B.C., 176 pp.
Linthurst, R.A., D.H. Landers, J.M. Eilers, D.F. Brakke, W.S. Overton, E.P. Meier, and RE Crowe. 1986. Characteristics
of Lakes in the Eastern Unfted States. Volume L Population Descriptions and Physico-Chemical Relationships.
EPA/600/4-86/007a. U.S. Environmental Protection Agency, Washington, D.C., 136 pp.
Kerfoot, H.B., and M.L Faber. 1986. National Surface Water Survey, Western Lake Survey—Phase I, Analytical Methods
Manual. EPA/600/8-87/038. U.S. Environmental Protection Agency, Washington, D.C.
Kramer, J.R. 1984. Modified Gran Analysis for Acid and Base Tifrations. McMaster University, Hamilton, Ontario,
Canada (Environmental Geochemistry Report No. 1984-2).
Merritt, G.D., and V.A. Sheppe. 1988. Eastern Lake Survey - Phase II, Field Operations Report. EPA/600/4-88/024. U.S.
Environmental Protection Agency, Las Vegas, Nevada.
Mitchell-Hall, T.E., A.C. Neale, S.G. Paulsen, and J.E. Pollard. 1989. Eastern Lake Survey - Phase II: Quality Assurance
Report. EPA/600/4-89/029. U.S. Environmental Protection Agency, Las Vegas, Nevada.
O'Dell, J.W., J.D. Fluff, M.E. Gales, and G.D. McKee. 1984. Technical Additions to: Methods for Chemical Analysis of
Water and Wastes. Method 300.0. The Determination of Inorganic in Water by Jon Chromatography. EPA-600/4-
.8501 7. U.S. Environmental Protection Agency, Cincinnati, Ohio.
Tessier, A.J., and R.J. Horwitz. 1988. Analysis and Interpretation of Zoo plankton Samples Collected During Phase II of
the National Lakes Survey. The Academy of Natural Sciences of Philadelpl Report 88-18, Philadelphia, PA.
Tessier, A.J., and R.J. Horwitz. 1990. Influence of water chemistry on size structure of zooplankton assemblages. Can. J
Fish. Aquat Sci. 47:1937-1943.
US DC. 1979. Counties and County Equivalents of the States of the United States and the District of Columbia. FIPS
Pub 6-3. U.S. Department of Commerce, Bureau of Standards, Washington, D.C.
Watson, C.R., and A.R. Olsen. 1984. Acid Deposition System (ADS) for Statistical Analysis Report: System Design and
User Code Manual. EPA-600/8-84-023. U.S. Environmental Protection Agency, Research Triangle Park, North
Carolina.
60
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APPENDIX A
ANCILLARY ELS-II DATA SETS
Other information was collected as part of ELS-II activities in addition to the data in the three seasonal ELS-II data
sets described in the main body of this report. These data, found in the following data tiles, include zooplankton species
abundance, chlorophyll concentrations, and bathymetry.
File Name Contents n Number of Variables
BATHYM Bathymetric data 129 14
SUSZOOP Summer 1986 Zooplankton data 491 144
SUSCHLA Summer 1986 Chlorophyll data 221 26
These data sets are discussed in detail in the following subsections.
A.I BATHYMETRIC DATA
A detailed bathymetric survey was conducted on 126 of the 145 ELS-II target lakes and 3 special- interest lakes.
Transects were made across the lake and depths were recorded using a Lowrance X-15A depth chart recorder. Lake outlines
were scaled up from 7.5 minute USGS maps using a zoom transfer scope. From these depth tracings and map outlines, a
bathymetric map was constructed for each lake. These bathymetric maps were then used to quantify the variables in data set
BATHYM given in Table A-l. Field surveys were performed by the Adirondack Lake Survey Corporation (ALSC) and
SUNY Oswego. Data reduction was done by the ALSC. Note that some of these variables (surface area, watershed area,
residence time) are present in the seasonal chemistry data sets based on map measurement during ELS-1. The variables in
the BATHYM data set represent more detailed measurements made during the ELS-II bathymetric analyses.
A.2 SUMMER ZOOPLANKTON DATA
As part of the summer ELS-II data collection effort, zooplankton species abundance was analyzed at the index
location in the deepest part of the lake. Three zooplankton tows were collected from this location using an 80-^m mesh
Wisconsin bucket net, pulled vertically from 1 m above the lake bottom to the lake surface at a constant rate. These samples
were preserved in a jar with buffered, sugar formalin and analyzed at the Academy of Natural Sciences of Philadelphia.
Each jar was first examined for taxonomic composition to generate a comprehensive species list for each lake. Total
abundance was determined on the entire jar if overall densities were less than 300 individuals. Otherwise, the counts were
made from subsamples from the jar using a funnel splitter. In about 15% of the samples, replicate splits were counted.
61
-------
Details of the analyses and data interpretation can be found in Tessier and Horwitz (1988,1990).
The data file with these data (SUSZOOP) contains the following variables:
Variable Name Definition
LAKE_ID Lake identification code
JARID A two-digit code identifying the sample. The first digit (1, 2, or 3) identifies the
tow number. The second digit (0 or 1) indicates the sample replicate number (some
samples were counted twice).
Rdxxxx Abundance of species xxxx in number of individuals per meter of net tow. In cases where
the species was identified in the initial taxonomic examination but was not abundant
enough to be counted after subsampling, the abundance was arbitrarily set to 0.01
individuals/meter tow. The zooplankton species names associated with each four-digit code
number (xxxx) are given in Table A-2 and Appendix VI of Tessier and Horwitz (1988).
There are 142 species represented by RDxxxx variables in file SUSZOOP.
A.3 CHLOROPHYLL DATA
As part of the summer seasonal sampling, samples were collected for chlorophyll analysis. Water from the
epilimnion taken from the same Van Dorn sample as the ELS-II water chemistry sample was filtered through a 0.8-pm pore
size polycarbonate filter. The filter was placed in an opaque centrifuge tube and transported frozen to the analysis
laboratory. The filter was analyzed for chlorophyll-a, chlorophyll-b, and degradation products by spectrophotometry,
fluorometry, and HPLC. The analytical methodology is described in Section 12 of the EPA Acidic Deposition Analytical
Methods Manual (EPA, 1987). Variable listing and definitions for the SUSCHLA data set are given in Table A-3. Note that
this data has been verified but not validated or enhanced.
62
-------
Table A-l. Listing and Definition of Variables in ELS-II Data Set BATHYM
Variable Name
Definition
FRATE
LAKE ID
LAT DD
LITTAREA
LONG DD
MAXDPM
MEANDPM
RUNOFF
SAREA
SHORLN
SHRDEV
VOLDV
VOLUME
WAREA
Flushing rate in years, calculated as (watershed area*runoff)/lake volume.
ELS Lake identification code.
Latitude in decimal degrees.
Littoral zone area in hectares, defined as the area of the lake with water less than 10 feet
deep.
Longitude in decimal degrees.
Maximum lake depth in meters.
Mean lake depth in meters, calculated as lake volume/lake area.
Mean annual runoff in cm/yr.
Lake surface area in ha, measured by planimetry.
Shoreline length in kilometers, calculated by summing the distances between the x,y
coordinate pairs along the shoreline contour.
Index of shoreline development, calculated as,
shoreline length / (2(:n;*lake area)05).
This is Indicative of the deviation of the lake shoreline from a perfect circle
(SHRDEV- 1 for a perfect circle).
Lake volume development, calculated as 3*mean depth/max depth. This is
indicative of the deviation of the lake volume from an inverted cone (VOLDV= 1 for a
perfect inverted cone).
Lake volume in 106 cubic meters
Watershed Area in hectares, measured by planimetry.
63
-------
Table A-2. Species Code Numbers for Zooplankton Data in ELS-II Data Set SUSZOOP
Species Code Species Name
ROTIFERA
1000 Keratella earlinae
1001 K. chochlearis hispida
1002 Keratella crassa
1003 Keratella taurocephala
1004 K. cochlearis-cochlearis
1005 Keratella hieratis
1006 Keratella irregularis
1007 Keratella ticinersis
1008 Keratella c. robusta
1009 Keratella serrulata
1010 Kellicottia longispina
1011 Kellicottia bostoniensis
1030 Notholca labis
1031 Notholca squemula
1040 Brachionus urceolaris
1041 Brachionus quadridentatus
1050 Euchlanis dilatata
1051 Euchlanis petlucida
1060 Platyias petulus
1070 Mytilina spp.
1101 Lecane luna
1102 Lecane flexilis
1103 Lecane mira
1104 Lecane tudicola
1105 Lecane ungulata
1110 Monostyla lunaris
1400 Trichocerca multicrinis
1401 Trichocerca cylindrica
1402 Trichocerca pusillainis
1403 Trichocerca porcellus
1404 Trichocerca similis
1405 Trichocerca rousseleti
1406 Trichocerca lata
1407 Trichocerca elongata
1500 Gastropus hyptopus
1501 Gastropus sfylifer
1510 Ascomorpha ovalis
1511 Ascomorpha saltans
1512 Ascomorpha ecaudis
1800 Asplanchna priodonta
1809 Asptanchna sp.
1900 Polyarthra vulgaris
1901 Polyarthra euryptera
1902 Polyarthra remata
1903 Polyarthra major
1904 Polyarthra dolichoptera
(Continued)
Table A-2. (Continued)
Species Code Species Name
1910 Synchaeta pectinata
64
-------
1911 Synchaeta kitti
1912 Synchaeta oblonga
1921 Ploesoma truncatum
1922 Ploesoma lenticularie
1923 Ploesoma hudsoni
1924 Ploesoma triacanthum
2100 Filinasp.
2101 Filinia terminalis
2102 Filinia longiseta
2200 Hexarthra mira
2300 Conochilus unicornis
2301 Conochilus hippocrepis
2310 Conochiloides dossarius
2311 Conochiloides natans
3100 Colfotheca pelagica
3101 Collotheca mutabilis
3300 Unidentified rotifera
CLADOCORA
4100 Leptodora kindtii
5101 Diaphanosoma birgei
5102 Diaphanosoma brachyurum
5110 Sida crystallina
5201 Holopedium gibberum
5301 Bosmina longirostris
5310 Eubosmina hegmanni
5311 Eubosmina tubican
5312 Eubosmina longispina
5501 Chydorus brevalibris
5502 Chydorus sphaericus
5509 Chydorus sp.
5510 Alona setulosa
5511 Alona guttata
5512 Alona circumfimbrata
5513 Alona barbula
5519 Alona sp.
5520 Alonella acutirostris
5530 Kurzia laissium
5540 Acroperus harpae
5550 Eurycercus lamellatus
5560 Graptoleberis testudinaria
5600 Polyphemus pediculum
5701 Daphnia catawba
5702 Daphnia galeata mandotae
5703 Daphnia rosea
5704 Daphnia ambigua
(Continued)
65
-------
Table A-2. (Continued)
Species Code Species Name
5705 Daphniapulex
5706 Daphnia parvula
5707 Daphnia schodleri
5708 Daphnia retrocurva
5709 Daphnia longiremis
5710 Daphnia dubia
5801 Scapholeberis mucronata
5802 Ceriodaphnia reticulata
5803 Ceriodaphnia lacustris
804 C. aftinia dubia
5805 Ceriodaphnia quadrangula
5809 Ceriodaphnia sp.
COPEPODA
6300 Epischura lacustris
6301 Epischura nordenskioldi
6309 Epischura sp.
6401 Aglaodiaptomus Jeptopus
6402 A. spatulocrenatus
6411 Leptodiaptomus minutus
6412 Leptodiaptomus sicilis
6421 S. oregonensis
6422 Skistodiaptomus reighardi
6423 Skistodiaptomus pygmasus
6429 Skistodiaptomus sp.
6431 Onychodiaptomus birgei
6500 Unknown sp. calanoida
7100 Tropocyclops sp. 1
7101 Mesocyclops edax
7110 Tropocyclops sp. 2
7111 T. prasinus - mexicanus
7112 Tropocyclops prasinus
7121 Cyclops scutiger
7122 Cyclops sternus strenuus
7123 Cyclops vernalis
7124 C. bicuspidatus thomasi
7129 Cyclops sp.
7131 Orthocyclops modestus
7141 Eucyclops speratus
7142 Eucy clops agilus
7143 Eucy clops prionophonis
7144 Ectocyclops phaleratus
7160 Macrocyclops albidus
7200 Unknown sp. cyclopoida
7500 Ergasilus chautauquansis
8000 Nauplii
(Continued)
Table A-2. (Continued)
Species Code Species Name
66
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MISCELLANEOUS
9100 Chaoborus punctipennis
9101 Chaoborus americanus
9102 Chaoborus flavicans
9199 Chaoborus sp.
9200 Mites 1
9201 Mites 2
9300 Ostracoda
67
-------
Table A-3. Listing and Definition of Variables in ELS-II Data Set SUSCHLA
Variable Name
Definition
BATCH ID
CHLA AC
CHLA AR
CHLA HC
CHLA HT
CHLB AR
CHLB HT
DAT ANAL
DG AR
DG HT
FLU CHL
FLU OIL
FLU_SCL
FLU STD
FLU VAL
LAKE ID
SAM ID
SAM_TYPE
SAM VOL
SQL VOL
SPCCHLA
SPC_CHLB
SPECFILE
SPEC_650
SPEC_665
SPEC 700
Batch identification code.
Chlorophyll-a concentration based on HPLC peak area («g/L).
HPLC chlornphyll-a peak area.
Chlorophyll-a concentration based on HPLC peak height (wg/L).
HPLC chlorophyll-a peak height.
Chlorophyll-/? HPLC peak area.
Chlorophyll-/? HPLC peak height.
Date analyzed.
Degradation products peak area.
Degradation products peak height.
Chlorophyll-a concentration from fluorometry (wg/L).
Dilution factor for fluorometry measurement.
Fluorometer scale.
Fluorescence standard (measured).
Fluorescence value.
ELS-II Lake identification code.
Sample identification code.
Sample type (A = audit, R = routine lakewater sample, D = duplicate, T = triplicate) "L" code
indicates a laboratory duplicate or triplicate.
Sample volume (mL)
Solvent volume (mL).
Chlorophyll-a concentration from spectrophotometry (wg/L).
Chlorophyll-/? concentration from spectrophotometry (w/L).
Spectrophotometry file number.
Spectrophotometry absorbance at 650 nm.
Spectrophotometry absorbance at 665 nm.
Spectrophotometry absorbance at 700 nm.
68
-------
APPENDIX B
ASCII VERSIONS OF ELS-II DATA SETS
The enhanced versions of the three seasonal chemistry data sets (SPSFIM01, SUSFIM01, and FASFIMOI) and the
three auxiliary data sets (BATHYM, SUSZOOP, and SUSCHLA) are available as ASCII data sets. ASCII data are
provided as 80-column card-image files. Card image format definitions for these six ASCII data sets are given in Tables B-
1 through B6. For all data lines, columns 79-80 contain the card number. Variable widths were transferred to the card
image files using the formats in the SAS data sets. Dates are in DDMMMYY format and times are in HH:MM (24-hour
clock) for all ASCII data sets. Missing numeric variables are represented as -999. These values should be removed prior
to any data analysis. An example card image listing from Data File FASFIMOI .DAT is shown in Table B-7. All ASCII
data sets have the same name as the equivalent SAS data set, but with a .DAT extension.
69
-------
Table B-l. Card-Image Format Definition, ELS-II Data Set SPSFIM01
Card
#
2
2
2
2
2
2
2
2
3
o
J
o
J
3
o
J
3
3
o
J
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
Variable
Name
ACCO1 1
ALD02
ALDI98
ALEX11
ALKA11
ALO 02
ALTL11
ANCAT98
ANDEF98
ANSUM98
BNSTR99
C0151D
C04051D
C06101D
C08151D
C10201D
C12251D
C1430ID
C16351D
C18401D
C20451D
CA11
CA98
CAT8U98
CL11
CL98
CLSTR99
CNTY99
CO398
COLOR02
CON601D
COND11
CON BID
CXX501D
DATSMP
DIC02
DICE 11
DICI11
DISM99
DOC 11
DO 151D
DO 60 ID
DO BID
DPCAT1D
DPSIT1D
DPSITX1D
DP 601D
DP BID
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Format
8.1
8.4
8.4
8.4
8.1
8.4
8.4
6.4
8.4
8.4
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.3
8.4
8.4
8.3
8.4
8.0
5.0
8.4
8.0
8.0
8.1
8.0
8.0
7.0
8.3
8.3
8.3
8.0
8.2
8.2
8.2
8.2
8.1
8.0
8.1
8.1
8.1
Start
Col.
1
10
20
30
40
50
60
70
1
10
20
30
40
50
80
70
1
10
20
30
40
50
60
70
1
10
20
30
36
48
56
66
1
10
20
29
39
49
59
69
1
10
20
30
40
50
60
70
End
Col.
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
34
44
54
64
74
8
18
27
37
47
57
87
77
8
18
28
38
48
58
88
78
Label #
CO2-ACIDITY (UEQ/L) FORM 11
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACT ABLE (UG/L) FORM 11
ALKAUNITY (UEQ/L) FORM 11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
TOTAL ALUMINUM (UG/L) FQRM 11
CATIONS/ANIONS RATIO
CATSUM-ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
POPULATION SIZE BY STRATA
CONDUCTIVITY (US/CM) AT 1.5M FORM ID
CONDUCTIVITY AT 4 OR 5 M (US/CM) FORM ID
CONDUCTIVITY AT 6 OR 1OM (US/CM) FORM ID
CONDUCTIVITY AT 8 OR 1.5M (US/CM) FORM ID
CONDUCTIVITY AT 10 OR 20M (USICM) FORM ID
CONDUCTIVITY AT 12 OR 25M (US/CM) FORM ID
CONDUCTIVITY AT 14 OR 30M (US/CM) FORM ID
CONDUCTIVITY AT 16 OR 35M (US/CM) FORM ID
CONDUCTIVITY AT 18 OR 40M (US/CM) FORM ID
CONDUCTIVITY AT 20 OR 45M (US/CM) FORM ID
CALCIUM (MG/L) FORM 11
CALCIUM (UEQ/L)
SUM OF CATIONS (UEQ/L)
CHLORIDE ION (MG/L) FORM 11
CHLORIDE (UEQ/L)
PHASE II CLUSTER (1,2 or 3)
FIPS CODE(ST,COUNTY)
CARBONATE ALKAUNITY (UEQ/L)
COLOR (PCU) FORM 2
CONDUCTIVITY AT 0.6*DEPTH(US/CM) FORM ID
CONDUCTIVITY (US/CM) FORM 11
CONDUCT AT BOTTM-1.5M (US/CM) FORM ID
CONDUCTIVITY AT 50 M (US/CM) FORM ID
DATE SAMPLED
DIC (MG/L) FORM 2
DIC-EQUIL (MG/L) FORM 11
DIC-INIT (MG/L) FORM 11
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 11
DISSOLVED OXYGEN (MG/L) 1.5M FORM ID
DISSOLVED OXYGEN AT 0.6*DEPTH FORM ID
DIS OXYGEN (MG/L) BOTTOM-1.5M FORM ID
DEPTH CATEGORY 4= <20M 5=>20M FORM ID
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M) - ALSC
DEPTH 0.6*BOTTOM (M) FORM ID
DEPTH AT BOTTOM-1.5M (M) FORM ID
Card
1
2
2
2
2
2
2
2
2
3
o
J
o
J
3
o
J
3
3
o
J
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
70
-------
Table B-l. (Continued)
Card
#
7
7
7
7
7
7
7
7
8
8
8
8
8
8
9
9
9
9
9
10
10
10
10
10
11
11
11
12
12
12
12
13
13
13
13
13
13
13
13
14
14
14
14
14
14
14
14
Variable
Name
DRPCDE
ELEV99
ELEVX99
FEU
FTL11
FTL98
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
LABNA02
LAKE ID
LAT99"
LATDD99
LKID99
LKNAM99
LKSIZ99
LKSIZX99
LKVOL99
LKVOLX99
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
MG98
MN11
NA11
NA98
NH411
NH498
NO311
NO398
NO3DDP99
ORGIO98
PH0151D
PH02
PHAC11
PHAL11
PHEQ11
PH601D
PH BID
PRCI99
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Num
Char
Char
Num
Num
Num
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Format
8.0
8.1
8.1
8.3
8.4
8.4
8.4
8.4
8.3
4.0
9.0
8.0
8.3
8.4
30.0
7.0
10.0
8.4
7.0
30.0
8.2
8.2
8.3
8.3
8.4
11.0
25.0
40.0
8.3
8.4
8.3
8.3
8.4
8.3
8.4
8.4
8.4
8.2
8.4
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.3
Start
Col.
1
10
20
30
40
50
80
10
1
10
15
25
32
42
1
33
41
52
62
1
33
43
53
83
1
10
22
1
43
53
83
1
10
20
30
40
50
80
70
1
10
20
30
40
50
80
70
End
Col.
8
18
28
38
48
58
68
78
8
13
23
30
40
50
31
39
50
80
68
31
41
51
61
71
8
20
48
41
51
61
71
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
Label
Drop code for population estimates
LAKE ELEVATION (M)
LAKE ELEVATION (M) - ALSC
IRON (UGIL) FORM 1 1
FLUORIDE (MG/L) FORM 1 1
FLUORIDE (UEQ/L)
HYDROGEN FROM PHAC1 1 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M**2/YR)
HYDROLAB METER IDENTIFIER CODE FORM
HYDROLOGIC TYPE
PRESENSE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 1 1
POTASSIUM (UEQ/L)
LABORATORY FOR ANALYSIS FORM 2
LAKE IDENTIFICATION NUMBER
ATITUDE
LATITUDE (DECIMAL DEGREES)
ERLD-UMD ID/ALSC WSHED-POND ID
LAKE NAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA) - ALSC
CALC LAKE VOL (1 0**6 CU M)
DIG. LAKE VOL (10** 6 CU M) -ALSC
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 1 1
MAGNESIUM (UEQ/L)
MANGANESE (UG/L) FORM 1 1
SODIUM (MG/L) FORM 1 1
SODIUM (UEQ/L)
AMMONIUM ION (MG/L) FORM 1 1
AMMONIUM (UEQ/L)
NITRATE ION (MG/L) FORM 1 1
NITRATE (UEQ/L)
NITRATE DEPOSITION (G/M**2~R)
ORGANIC ANION (UEQ/L)
PHAT1.5MFORM ID
STATION PH FORM 2
ACIDITY IN-AL PH FORM 1 1
ALKAUNITY INITIAL PH FORM 1 1
AIR-EQUILIBRATED PH FORM 1 1
PH AT 0.6*DEPTH FORM ID
PH AT BOTTOM-1.5M FORM ID
PRECIPITATION (M/YR)
Card
#
7
7
7
7
7
7
7
7
8
ID 8
8
8
8
8
9
9
9
9
9
10
10
10
10
10
11
11
11
12
12
12
12
13
13
13
13
13
13
13
13
14
14
14
14
14
14
14
14
71
-------
Table B-l. (Continued)
Card
#
15
15
15
15
15
15
15
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
21
21
21
Variable
Name
PREC1D
PTL11
RGSPC99
RPREC1D
RT99
RTX99
RUNIN99
RUNOF99
RUNOFX99
SBRGN99
SECDI1D
SECME98
SECRE1D
SIO211
SITETYP
SO411
SO498
SO4DP99
SOBC98
SPLCD02
ST99
STRAT99
T04051D
T06101D
T08151D
T10201D
T12251D
T14301D
T16351D
T18401D
T20451D
TIMSM1D
TM0151D
TMP601D
TMPA1D
TMPD11D
TMPD21D
TMP BID
TUR02
TXX501D
VISIT1D
WALA99
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT1O 99
WT2C99
WT2T99
Var.
Type
Char
Num
Char
Char
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Char
Num
Num
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Char
Char
Num
Num
Char
Char
Num
Num
Num
Num
Format
5.0
8.4
16.0
8.0
8.3
8.3
8.0
8.3
8.3
1.0
8.1
8.1
8.1
8.3
9.0
8.3
8.4
8.2
8.4
1.0
2.0
3.0
8.1
8.1
8.1
8.1
8.1
8.1
8.1
8.1
8.1
5.0
8.1
8.1
8.0
8.1
8.1
8.1
8.2
8.1
12.0
8.2
8.2
3.0
8.0
8.3
8.3
25.0
8.0
8.3
8.3
8.4
8.3
Start
Col.
1
8
18
35
44
54
64
1
10
20
22
32
42
52
62
1
10
20
30
40
42
45
49
59
69
1
10
20
30
40
50
80
67
1
10
20
30
40
50
60
1
15
25
35
39
48
58
1
28
37
47
57
67
End
Col.
6
16
33
42
52
62
72
8
18
20
30
40
50
80
70
8
18
28
38
40
43
47
57
67
77
8
18
28
38
48
58
65
75
8
18
28
38
48
58
68
13
23
33
37
46
56
66
26
35
45
55
65
75
Label
PRECIPITATION FORM ID
TOTAL PHOSPHORUS (UG/L) FORM 11
REG SPEC LTM NRC DEW DER SAMPLE CLASS
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR) - ALSC
ANNUAL RUNOFF INCHES FROM DIGIT MAP
SURFACE WATER RUNOFF (M/YR)
SURFACE WATER RUNOFF (M/YR) - ALSC
NSWS SUBREGION
SECCHI DEPTH: DISAPPEAR (M) FORM ID
MEAN: SECCHI DISK DISAPPEAR, REAPPEAR (M)
SECCHI DEPTH: REAPPEAR (M) FORM ID
SILICA (MG/L) FORM 1 1
SAMPLING SITE OR TYPE CODE
SULFATE ION (MG/L) FORM 11
SULFATE (UEQ/L)
SULFATE DEPOSITION (G/M**2/YR)
SUM OF BASE CATIONS (UEQ/L)
SPLIT/SAMPLE CODE TO LAS VEGAS FORM 2
STATE (TWO-LETTER ABBREV)
NSWS STRATA
TEMPERATURE AT 4 OR 5 M (DEC C) FORM ID
TEMPERATURE AT 6 OR 10 M (DEC C) FORM ID
TEMPERATURE AT 8 OR 15 M (DEC C) FORM ID
TEMPERATURE AT 10 OR 20M (DEC C) FORM ID
TEMPERATURE AT 12 OR 25M (DEC C) FORM ID
TEMPERATURE AT 14 OR 30M (DEC C) FORM ID
TEMPERATURE AT 16 OR 35M (DEC C) FORM ID
TEMPERATURE AT 18 OR 40M (DEC C) FORM ID
TEMPERATURE AT 20 OR 45M (DEC C) FORM ID
TIME SAMPLED (24 H) HH:MM FORM ID
TEMPERATURE (DEC C) AT 1.5M FORM ID
TEMPERATURE AT 0.6*DEPTH (DEC C) FORM ID
AIR TEMPERATURE (DEC G) FORM ID
TEMP DIF 1.5M-BOTTOM (DEC C) FORM ID
TEMP DIF 1.5M-0.6*DEPTH (DEC C) FORM ID
TEMP AT BOTTOM- 1.5M (DEC C) FORM ID
TURBIDITY (MTU) FORM 2
TEMPERATURE AT 50 M (DEC C) FORM ID
VISIT FORM ID
WATERSHED AREA/LAKE AREA
WATERSHED AREA/LAKE AREA - ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA) - ALSC
DISTURB W/1 1OOM - OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
TOTAL PHASE II WEIGHT
Card
#
15
15
15
15
15
15
15
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
21
21
21
72
-------
Table B-2. Card-Image Format Definition, ELS-II Data Set SUSFIM01
Card
#
2
2
2
2
2
2
2
2
3
o
J
3
o
J
o
J
3
o
J
3
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
Variable
Name
ACCES1D
ACCO11
ALD02
ALDI98
ALEX11
ALKA11
ALO 02
ALTL11
ANCAT98
ANDEF98
ANSUM98
BNSTR99
COOS ID
C0151D
C0251D
C0351D
C0451D
C0551D
C0651D
C0751D
C0851D
C0951D
C1051D
C1251D
C1451D
C1651D
C1851D
C205ID
C2251D
C2451D
C2651D
C2851D
C3051D
C3251D
C3451D
C3651D
C3851D
CA11
CA98
CATSU98
CHLOD1D
CHLOR1D
CL11
CL98
CLSTR99
CNTY99
COS 98
COLOR02
COND11
CONMH1D
CONMM1D
CONTH1D
CON BID
CRWID1D
DATSMP
Var.
Type
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Char
Num
Formal
3.0
8.1
8.4
8.4
8.4
8.1
8.4
8.4
8.4
8.4
8.4
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.3
8.4
8.4
8.1
8.1
8.3
8.4
8.0
5.0
8.4
8.0
8.1
8.0
8.0
8.0
8.0
20.0
7.0
Start
Col.
1
6
16
26
36
46
56
66
1
10
20
30
40
50
80
70
1
10
20
30
40
50
60
70
1
10
20
30
40
50
80
70
1
10
20
30
40
50
80
70
1
10
20
30
40
50
58
66
1
10
20
30
40
50
71
End
Col.
4
14
24
34
44
54
64
74
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
38
48
54
64
74
8
18
28
38
48
69
78
Label
ACCESS FORM ID
CO2-ACIDITY (UEQ/L) FORM 11
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACT ABLE (UG/L) FORM 11
ALKAUNITY (UEQ/L) FORM 11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
TOTAL ALUMINUM (UG/L) FORM 11
CATIONS/ANIONS RATIO
CATSUM - ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
POPULATION SIZE BY STRATA
CONDUCTIVITY AT 0.5 M (US/CM) FORM ID
CONDUCTIVITY AT 1.5 M (US/CM) FORM ID
CONDUCTIVITY AT 2.5 M (US/CM) FORM ID
CONDUCTIVITY AT 3.5 M (US/CM) FORM ID
CONDUCTIVITY AT 4.5 M (US/CM) FORM ID
CONDUCTIVITY AT 5.5 M (US/CM) FORM ID
CONDUCTIVITY AT 6.5 M (US/CM) FORM ID
CONDUCTIVITY AT 7.5 M (US/CM) FORM ID
CONDUCTIVITY AT 8.5 M (US/CM) FORM ID
CONDUCTIVITY AT 9.5 M (US/CM) FORM ID
CONDUCTIVITY AT 10.5 M (US/CM) FORM ID
CONDUCTIVITY AT 12.5 M (US/CM) FORM ID
CONDUCTIVITY AT 14.5 M (US/CM) FORM ID
CONDUCTIVITY AT 16.5 M (US/CM) FORM ID
CONDUCTIVITY AT 18.5 M (US/CM) FORM ID
CONDUCTIVITY AT 20.5 M (US/CM) FORM ID
CONDUCTIVITY AT 22.5 M (US/CM) FORM ID
CONDUCTIVITY AT 24.5 M (US/CM) FORM ID
CONDUCTIVITY AT 26.5 M (US/CM) FORM ID
CONDUCTIVITY AT 28.5 M (US/CM) FORM ID
CONDUCTIVITY AT 30.5 M (US/CM) FORM ID
CONDUCTIVITY AT 32.5 M (US/CM) FORM ID
CONDUCTIVITY AT 34.5 M (US/CM) FORM ID
CONDUCTIVITY AT 38.5 M (US/CM) FORM ID
CONDUCTIVITY AT 38.5 M (US/CM) FORM ID
CALCIUM (MG/L) FORM 11
CALCIUM (UEQ/L)
SUM OF CATIONS (UEQ/L)
CHLOROPHYLL VOLUME H20 D (ML) FORM ID
CHLOROPHYLL VOLUME H20 R (ML) FORM ID
CHLORIDE ION (MG/L) FORM 11
CHLORIDE (UEQ/L)
PHASE II CLUSTER (1,2 or 3)
FIPS CODE(ST,COUNTY)
CARBONATE ALKAUNITY (UEQ/L)
COLOR (PCU) FORM 2
CONDUCTIVITY (US/CM) FORM 11
CONDUCTIVITY AT MID-HYP (US/CM) FORM ID
CONDUCTIVITY AT MID-MET (US/CM) FORM ID
CONDUCTIVITY AT TOP-HYP (US/CM) FORM ID
CONDUCTIVITY AT BTM-1 .5M (US/CM) FORM ID
FIELD CREW ID FORM ID
DATE SAMPLED
Card
#
2
2
2
2
2
2
2
2
3
o
J
3
o
J
o
J
3
o
J
3
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
73
-------
Table B-2. (Continued)
Card
#
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
12
12
12
12
12
13
13
13
13
13
14
14
14
14
14
15
15
15
15
Variable
Name
DIC02
DICE 11
DICI11
DISM99
DOC 11
DOMH1D
DOMMID
DOTH ID
DO 05 ID
DO 151D
DO~B1D
DPMH1D
DPMM1D
DPSCB1D
DPSCM1D
DPSIT1D
DPSITX1D
DPTH1D
DP BID
DRPCDE
ELEV99
ELEVX99
FEU
FTL11
FTL98
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
LABNA02
LAKE ID
LAT99"
LATDD99
LKID99
LKNAM99
LKSIZ99
LKS1ZX99
LKVOL99
LKVOLX99
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
MG98
MN11
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Num
Char
Char
Num
Num
Num
Nurn
Num
Char
Char
Char
Num
Num
Num
Format
8.3
8.3
8.3
8.0
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.
8.
8.
8.
8.
11 5
8.
8.
8.0
8.
6.
8.3
8.4
8.4
8.4
8.4
8.3
4.0
9.0
6.0
8.3
8.4
30.0
10.0
10.0
8.4
7.0
30.0
8.2
11.5
8.3
11.5
8.4
11.0
25.0
40.0
8.3
8.4
8.3
Start
Col.
1
10
20
30
40
50
80
70
1
10
20
30
40
50
80
70
1
14
24
34
44
54
64
1
10
20
30
40
50
55
65
1
10
20
51
62
1
10
18
49
59
1
10
22
32
44
1
43
53
63
End
Col.
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
12
22
32
42
52
62
72
8
18
28
38
48
53
63
70
8
18
49
60
71
8
16
47
57
69
8
20
30
42
68
41
51
61
71
Label
DIG (MG/L) FORM 2
DIC-EQUIL (MG/L) FORM 1 1
DIC-INIT (MG/L) FORM 1 1
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 1 1
DISSOLVED OXYGEN AT MID-HYP FORM ID
DISSOLVED OXYGEN AT MID-MET FORM ID
DISSOLVED OXYGEN AT TOP-HYP FORM ID
DISSOLVED OXYGEN AT 0.5 M FORM ID
DISSOLVED OXYGEN (MG/L) 1.5M FORM ID
DIS OXYGEN (MG/L) BOTTOM-1.5M FORM ID
DEPTH AT MID-HYP (M) FORM ID
DEPTH AT MID-MET (M) FORM ID
DEPTH SAMPLE COLL BTM-1.5M (M) FORM ID
DEPTH SAMPLE COLL MID-HYP (M) FORM ID
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M) - ALSC
DEPTH AT TOP-HYP (M) FORM ID
DEPTH AT BTM-1.5M (M) FORM ID
Drop code for population estimates
LAKE ELEVATION (M)
LAKE ELEVATION (M) - ALSC
IRON (UG/L) FORM 1 1
FLUORIDE (MG/L) FORM 1 1
FLUORIDE (UEQ/L)
HYDROGEN FROM PHAC1 1 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M**2/YR)
HYDROLAB METER IDENTIFIER CODE FORM ID
HYDROLOGIC TYPE
PRESENSE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 1 1
POTASSIUM (UEQ/L)
LABORATORY FOR ANALYSIS FORM 2
LAKE ID
LATITUDE
LATITUDE (DECIMAL DEGREES)
ERLO-UMD ID/ALSC WSHED-POND ID
LAKE NAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA) - ALSC
CALC LAKE VOL (10**6 CU M)
DIG. LAKE VOL (10** 6 CU M) -ALSC
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 1 1
MAGNESIUM (UEQ/L)
MANGANESE (UG/L) FORM 1 1
Card
#
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
12
12
12
12
12
13
13
13
13
13
14
14
14
14
14
15
15
15
15
74
-------
Table B-2. (Continued)
Card
#
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
21
21
21
21
21
22
22
22
22
22
22
22
22
Variable
Name
NA11
NA98
NH411
NH498
NO311
NO398
NO3DP99
ORGIO98
PH0051D
PH0151D
PH02
PHA11
PHAL11
PHEQ11
PHMH1D
PHMM1D
PHTH1D
PH BID
PRCIP99
PREC1D
PRECO1D
PTL11
RGSPC99
RPREC1D
RT99
RTX99
RUNIN99
RUNOF99
RUNOFX99
SBRGN99
SECDI1D
SECOV1D
SECME98
SECRE1D
SIO211
SITETYP
SO411
SO498
SO4DP99
SOBC98
SPLCD02
ST99
STRAT99
T0051D
T0151D
T0251D
T0351D
T0451D
T0551D
T0651D
T0751D
T0851D
T0951D
T1051D
T1251D
T1451D
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Num
Char
Char
Num
Num
Num
Num
Num
Char
Num
Char
Num
Num
Num
Char
Num
Num
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Format
8.3
8.4
8.3
8.4
8.4
8.4
8.2
8.4
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.3
5.0
7.0
8.4
16.0
8.0
8.3
8.3
8.0
8.3
8.3
1.0
8.1
1.0
8.1
8.1
8.3
9.0
8.3
8.4
8.2
8.4
12.0
2.0
3.0
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
Start
Col.
1
10
20
30
40
50
80
70
1
10
20
30
40
50
60
70
1
10
20
30
38
44
54
71
1
10
20
30
40
50
52
62
64
1
10
20
30
40
50
80
1
15
18
22
32
42
52
62
1
10
20
30
40
50
60
70
End
Col.
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
34
42
52
69
78
8
18
28
38
48
50
80
62
72
8
18
28
38
48
58
68
13
16
20
30
40
50
80
70
8
18
28
38
48
58
88
78
Label
SODIUM (MG/L) FORM 11
SODIUM (UEQ/L)
AMMONIUM ION (MG/L) FORM 11
AMMONIUM(UEQ/L)
NITRATE ION (MG/L) FORM 1 1
NITRATE (UEQ/L)
NITRATE DEPOSITION (G/M**2/YR)
ORGANIC ANION (UQ/L)
PHAT0.5MFORM1D
PHATI.5MFORM1D
STATION PH FORM 2
ACIDITY INITIAL PH FORM 1 1
ALKAUNTY INITIAL PH FORM 11
AIR-EQUILIBRATED PH FORM 11
PH AT MID-HYP FORM ID
PH AT MID-MET FORM ID
PH AT TOP-HYP FORM ID
PH AT BTM-1.5M FORM ID
PRECIPITATION (M/YR)
PRECIPITATION FORM ID
PRECIPITATION OBS (PREV/CURRENT) FORM ID
TOTAL PHOSPHORUS (UG/L) FORM 11
REG SPEC LTM NRC DEW DER SAMPLE CLASS
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR) - ALSC
ANNUAL RUNOFF INCHES FROM DIGIT MAP
SURFACE WATER RUNOFF (M/YR)
SURFACE WATER RUNOFF (M/YR) - ALSC
NSWS SUBREGION
SECCHI DEPTH: DISAPPEAR (M) FORM ID
SECCHI DEPTH Y= VISIBLE TO BOTTOM FORM ID
MEAN: SECHI DISK DISAPPEAR REAPPEAR (M)
SECCHI DEPTH: REAPPEAR (M) FORM ID
SILICA (MG/L) FORM 1 1
SAMPUNG SITE OR TYPE CODE
SULFATE ION (MG/L) FORM 11
SULFATE (UEQ/L)
SULFATE DEPOSITION (G/M**2/YR)
SUM OF BASE CATIONS (UEQ/L)
SPLIT/SAMPLE CODE TO LAS VEGAS FORM 2
STATE (TWO-LETTER ABBREV)
NSWS STRATA
TEMPERATURE AT 0.5 M (DEC C) FORM ID
TEMPERATURE AT 1.5 M (DEC C) FORM ID
TEMPERATURE AT 2.5 M (DEC C) FORM ID
TEMPERATURE AT 3.5 M (DEC C) FORM ID
TEMPERATURE AT 4.5 M (DEC C) FORM ID
TEMPERATURE AT 5.5 M (DEC C) FORM ID
TEMPERATURE AT 6.5 M (DEC C) FORM ID
TEMPERATURE AT 7.5 M (DEC C) FORM ID
TEMPERATURE AT 8.5 M (DEC C) FORM ID
TEMPERATURE AT 9.5 M (DEC C) FORM ID
TEMPERATURE AT 10.5 M (DEC C) FORM ID
TEMPERATURE AT 12.5 M (DEC C) FORM ID
TEMPERATURE AT 14.5 M (DEC C) FORM ID
Card
#
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
21
21
21
21
21
22
22
22
22
22
22
22
22
75
-------
Table B-2. (Continued)
Card
#
23
23
23
23
23
23
23
23
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
26
26
26
26
26
26
Variable
Name
T1651D
T1851D
T2051D
T2251D
T2451D
T2651D
T2851D
T3051D
T3251D
T3451D
T3651D
T3851D
TIMSM1D
TMPA1D
TMPMH1D
TMPMM1D
TMPTH1D
TMP BID
TUR02
WALA99
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT1O 99
WT2C9~9
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Num
Num
Char
Char
Num
Num
Num
Start
Format Col.
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
8.
5.(
8.(
8.
8.
8.
8.
1
10
20
30
40
50
80
70
1
10
20
30
) 40
) 47
57
67
1
10
8.2 20
8.2 30
11.5 40
3.0 52
8.0 58
8.3 65
11.5 1
25.0 14
8.0 40
8.3 49
8.3 59
8.4 69
End
Col.
8
18
28
38
48
58
68
78
8
18
28
38
45
55
65
75
8
18
28
38
50
54
63
73
12
38
47
57
67
77
Label
TEMPERATURE AT 16.5 M DEG C FORM ID
TEMPERATURE AT 18.5 M DEG C FORM ID
TEMPERATURE AT 20.5 M DEG C FORM ID
TEMPERATURE AT 22.5 M DEG C FORM ID
TEMPERATURE AT 24.5 M DEG C FORM ID
TEMPERATURE AT 26.5 M DEG C FORM ID
TEMPERATURE AT 28.5 M DEG C FORM ID
TEMPERATURE AT 30.5 M DEG C FORM ID
TEMPERATURE AT 32.5 M (DEG C) FORM ID
TEMPERATUREAT34.5 M (DEG C) FORM ID
TEMPERATURE AT 36.5 M (DEG C) FORM ID
TEMPERATURE AT 38.5 M (DEG C) FORM ID
TIME SAMPLED (24 H) HH:MM FORM ID
AIR TEMPERATURE (DEG C) FORM ID
TEMPERATURE AT MID-HYP (DEG C) FORM ID
TEMPERATURE AT MID-MET (DEG C) FORM ID
TEMPERATURE AT TOP-HYP (DEG C) FORM ID
TEMPERATURE AT BTM-1.5M (DEG C) FORM ID
TURBIDITY (MTU) FORM 2
WATERSHED AREA/LAKE AREA
WATERSHED AREA/LAKE AREA - ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA) - ALSC
DISTURBW/I 100M-OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
Card
#
23
23
23
23
23
23
23
23
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
26
26
26
26
26
26
27
WT2T99
Num 8.3
TOTAL PHASE II WEIGHT
27
76
-------
Table B-3. Card-Image Format Definition, ELS-II Data Set FASFIM01
Card
#
2
2
2
2
2
2
2
2
3
o
J
3
o
J
3
o
J
3
o
J
4
4
4
4
4
4
4
4
5
5
5
5
S
S
5
5
6
6
8
8
6
6
6
7
7
7
7
7
7
7
7
Variable
Name
ACCES1D
ACCO11
ALD02
ALDI98
ALEX11
ALKA11
ALO 02
ALTL11
ANCAT98
ANDEF98
ANSUM98
BNSTR99
C0151D
C04051D
C06101D
C08151D
C10201D
C12251D
C14301D
C16351D
C18401D
C20451D
CA11
CA98
CATSU98
CL11
CL98
CLSTR99
CNTY99
CO398
COLOR02
CON601D
COND11
CON BID
CXX501D
DATSMP
DIC02
DICE 11
DICI11
DISM99
DOC 11
DO 151D
DO 60 ID
DO BID
DPCAT1D
DPSIT1D
DPSITX1D
DP 60 ID
DP BID
DRPCDE
ELEV99
ELEVX99
FEU
FTL11
FTL98
Var.
Type
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Format
3.0
8.1
8.4
8.4
8.4
8.1
8.4
8.4
8.4
8.4
8.4
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.3
8.4
8.4
8.3
8.4
8.0
5.0
8.4
8.0
8.0
8.1
8.0
8.0
7.0
8.3
8.3
8.3
8.0
8.2
8.2
8.2
8.2
8.0
8.1
11.5
8.1
8.1
8.0
8.1
8.1
8.3
8.4
8.4
Start
Col.
1
6
16
26
36
46
58
66
1
10
20
30
40
50
60
70
1
10
20
30
40
50
60
70
1
10
20
30
40
46
56
66
1
10
20
30
39
49
59
69
1
10
20
30
40
50
80
1
10
20
30
40
50
80
70
End
Col.
4
14
24
34
44
54
64
74
8
18
28
38
48
58
68
78
8
18
28
38
48
58
68
78
8
18
28
38
44
54
84
74
8
18
28
37
47
57
67
77
8
18
28
38
48
58
70
8
18
28
38
48
58
68
78
Label
ACCESS FORM ID
CO2-ACIDITY )UEQ/L) FORM 11
PCV ALUMINUM DISSOLVED (UG/L) FORM 2
LABILE MONOMERIC AL (UG/L)
ALUMINUM-EXTRACT ABLE (UG/L) FORM 11
ALKAUNITY (UEQ/L) FORM 11
PCV ALUMINUM ORGANIC (UG/L) FORM 2
TOTAL ALUMINUM (UG/L) FORM 11
CATIONSIANIONS RATIO
CATSUM - ANSUM (UEQ/L)
SUM OF ANIONS (UEQ/L)
POPULATION SIZE BY STRATA
CONDUCTIVITY (US/CM) AT 1.5M FORM ID
CONDUCTIVITY AT 4 OR 5 M (US/CM) FORM ID
CONDUCTIVITY AT 6 OR 1OM (US/CM) FORM ID
CONDUCTIVITY AT 8 OR 15 M (US/CM) FORM ID
CONDUCTIVITY AT 10 OR 20M(US/CM) FORM ID
CONDUCTIVITY AT 12 OR 25M(USICM) FORM ID
CONDUCTIVITY AT 14 OR 30M(US/CM) FORM ID
CONDUCTIVITY AT 16 OR 35M(USICM) FORM ID
CONDUCTIVITY AT 18 OR 40M(US/CM) FORM ID
CONDUCTIVITY AT 20 OR 45M(US/CM) FORM ID
CALCIUM (MG/L) FORM 11
CALCIUM (UEQ/L)
SUM OF CATIONS (UEQ/L)
CHLORIDE ION (MG/L FORM 11
CHLORIDE (UEQ/L)
PHASE II CLUSTER (1.2 or 3)
FIPS CODE(ST,COUNTY)
CARBONATE ALKAUNITY (UEQ/L)
COLOR (PCU) FORM 2
CONDUCTIVITY AT 0.6*DEPTH(US/CM) FORM ID
CONDUCTIVITY (US/CM) FORM 11
CONDUCT AT BOTTOM-1.5M (US/CM) FORM ID
CONDUCTIVITY AT 50 M (US/CM) FORM ID
DATE SAMPLED
DIC (MG/L) FORM 2
DIC-EQUIL (MG/L) FORM 11
DIC-INIT (MG/L) FORM 11
DISTANCE FROM COAST (MILES)
DOC (MG/L) FORM 11
DISSOLVED OXYGEN (MG/L) 1.5M FORM ID
DISSOLVED OXYGEN AT 0.6*DEPTH FORM ID
DIS OXYGEN (MG/L) BOTTOM-1.5M FORM ID
DEPTH CATEGORY 4= <20M 5=>20M FORM ID
SITE DEPTH (M) FORM ID
MAXIMUM LAKE DEPTH (M) - ALSC
DEPTH 0.6*BOTTOM (M) FORM ID
DEPTH AT BOTTOM-1.5M (M) FORM ID
Drop code for population estimates
LAKE ELEVATION (M)
LAKE ELEVATION (M) - ALSC
IRON (UG/L) FORM 11
FLUORIDE (MG/L) FORM 11
FLUORIDE (UEQ/L)
Card
#
2
2
2
2
2
2
2
2
3
o
J
3
o
J
3
o
J
3
o
J
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
7
7
7
7
7
7
7
7
77
-------
Table B-3. (Continued)
Card
#
8
8
8
8
8
8
8
8
9
9
9
9
9
10
10
10
10
10
11
11
11
12
12
12
12
13
13
13
13
13
13
13
13
13
14
14
14
14
14
14
14
14
15
15
15
15
15
15
15
15
Variable
Name
H98
HCO398
HDEP99
HYDID1D
HYTYP99
INOUT99
Kll
K98
LABNA02
LAKE ID
LAT99
LATDD99
LKID99
LKNAM99
LKSIZ99
LKSIZX99
LKVOL99
LKVOLX99
LNGDD99
LONG99
MAPBG99
MAPSM99
MG11
MG98
MN11
NA11
NA98
NH411
NH498
NO311
NO398
NO3DP99
NVLAK1D
OB SID ID
ORGIO98
PH0151D
PH02
PHAC11
PHAL11
PHEQ11
PH 60 ID
PH_B1D
PRCIP99
PREC1D
PRECO1D
PTL11
RGSPC99
RPREC1D
RT99
RTX99
Var.
Type
Num
Num
Num
Char
Char
Char
Num
Num
Char
Char
Char
Num
Char
Char
Num
Num
Num
Num
Num
Char
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Char
Char
Num
Char
Char
Num
Num
Format
8.4
8.4
8.3
4.0
9.0
6.0
8.3
8.4
30.0
10.0
10,0
8.4
7.0
30.0
8.2
11.5
8.3
11.5
8.4
11.0
25.0
40.0
8.3
8.4
8.3
8.3
8.4
8.3
8.4
8.4
8.4
8.2
1.0
6.0
8.4
8.2
8.2
8.2
8.2
8.2
8.2
8.2
8.3
5.0
7.0
8.4
16.0
8.0
8.3
8.3
Start
Col.
1
10
20
30
35
45
52
62
1
33
44
55
65
1
33
43
55
65
1
10
22
I
43
53
63
1
10
20
30
40
50
80
70
72
1
10
20
30
40
50
80
70
1
10
16
24
34
51
80
70
End
Col.
8
18
28
33
43
50
80
70
31
42
53
63
71
31
41
53
63
75
8
20
46
41
51
61
71
8
18
28
38
48
58
68
70
77
8
18
28
38
48
58
68
78
8
14
22
32
49
58
68
78
Label
HYDROGEN FROM PH AC 11 (UEQ/L)
HCO3 (UEQ/L)
HYDROGEN ION DEPOSITION (G/M**2/YR)
HYDROLAB METER IDENTIFIER CODE FORM ID
HYDROLOGIC TYPE
PRESENSE/ABSENCE OF INLETS/OUTLETS
POTASSIUM (MG/L) FORM 11
POTASSIUM (UEQ/L)
LABORATORY FOR ANALYSIS FORM 2
LAKE ID
LATITUDE
LATITUDE (DECIMAL DEGREES)
ERLD-UMD ID/ALSC WSHED-POND ID
LAKENAME
LAKE SURFACE AREA (HA)
LAKE SURFACE AREA (HA) - ALSC
CALC LAKE VOL (10**6 CU M)
DIG. LAKE VOL (10**6 CU M) -ALSC
LONGITUDE (DECIMAL DEGREES)
LONGITUDE
MAP SHEET NAME (1:250,000 SCALE)
MAP SHEET NAME, 15 OR 7.5 QUAD
MAGNESIUM (MG/L) FORM 11
MAGNESIUM (UEQ/L)
MANGANESE (UG/L) FORM 11
SODIUM (MG/L) FORM11
SODIUM (UEQ/L)
AMMONIUM ION (MG/L) FORM 11
AMMONIUM (Ueq/L)
NITRATE ION (MG/L) FORM1 1
NITRATE (UEQ/L)
NITRATE DEPOSITION (G/M**2/YR)
NON- VARIABILITY LAKE (Y OR N) FORM ID
OBSERVER ID NUMBER FORM ID
ORGANIC ANION (UEQ/L)
PHAT1.5MFORM1D
STATION PH FORM 2
ACIDITY INITIAL PH FORM 1 1
ALKAUNITY INITIAL PH FORM 11
AIR-EQUILIBRATED PH FORM 11
PH AT 0.6*DEPTH FORM ID
PH AT BOTTOM-1.5M FORM ID
PRECIPITATION (M/YR)
PRECIPITATION FORM ID
PRECIPITATION OBS (PREV/CURRENT) FORM ID
TOTAL PHOSPHORUS (UG/L) FORM 11
REG SPEC LTM NRC DEW DER SAMPLE CLASS
RATE OF PRECIPITATION FORM ID
RESIDENCE TIME (YR)
RESIDENCE TIME (YR) - ALSC
Card
#
8
8
8
8
8
8
8
8
9
9
9
9
9
10
10
10
10
10
11
11
11
12
12
12
12
13
13
13
13
13
13
13
13
13
14
14
14
14
14
14
14
14
15
15
15
15
15
15
15
15
78
-------
Table B-3. (Continued)
Card
#
16
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
19
20
20
20
20
20
20
20
20
21
21
21
21
21
21
Variable
Name
RUNIN99
RUNOF99
RUNOFX99
SAMRT1D
SBRGN99
SECDI1D
SECDV1D
8ECME98
SECRE1D
SIO211
SITETYP
SO411
SO498
SO4DP99
SOBC98
SPRID1D
ST99
STRAT99
T04051D
T06101D
T08151D
T10201D
T12251D
T14301D
T16351D
T18401D
T20451D
TIMSM1D
TM0151D
TMP601D
TMPA1D
TMPD11D
TMPD21D
TMP BID
TUR02
TXX501D
VISIT ID
WALA99
WALAX99
WDIR1D
WSDIS99
WSHED99
WSHEDX99
WSOTH99
WSPD1D
WT1M99
WT1O 99
WT2C9~9
Var. Start
Type Format Col.
Num 8.0 1
Num 8.3 10
Num 8.:
5 20
Num 8.0 30
Char 1.0 40
Num 8.
[ 42
Char 1.0 52
Num 8.
Num 8.
Num 8.:
[ 54
[ 64
] 1
Char 9.0 10
Num 8.:
I 20
Num 8.4 30
Num 8.2 40
Num 8.4 50
Char 6.0 80
Char 2.0 67
Char 3.0 70
Num 8.
Num 8.
Num 8.
Num 8.
Num 8.
Num 8.
Num 8.
Num 8.
Num 8.
Num 5.(
Num 8.
Num 8.
Num 8.(
Num 8.
Num 8.
Num 8.
1
10
20
30
40
50
80
70
1
) 10
17
27
) 37
47
57
67
Num 8.2 1
Num 8.
[ 10
Num 8.0 20
Num 8.2 30
Num 11
.5 40
Char 3.0 52
Char 8.0 56
Num 8.3 65
Num 11
Char 25
.5 1
.0 14
Char 8.0 40
Num 8.:
5 49
Num 8.3 59
Num 8.4 69
End
Col.
8
18
28
38
40
50
52
62
72
8
18
28
38
48
58
65
68
72
8
18
28
38
48
58
66
78
8
15
25
35
45
55
65
75
8
18
28
38
50
54
63
73
12
38
47
57
67
77
Label
ANNUAL RUNOFF INCHES FROM DIGIT MAP
SURFACE WATER RUNOFF (M/YR)
SURFACE WATER RUNOFF (M/YR) - ALSC
SAMPLE ID ROUTINE FORM ID
NSWS SUBREGION
SECCHI DEPTH: DISAPPEAR (M) FORM ID
SECCHI DEPTH Y= VISIBLE TO BOTTOM FORM ID
MEAN: SECHI DISK DISAPPEAR REAPPEAR (M)
SECCHI DEPTH: REAPPEAR (M) FORM ID
SILICA (MG/L) FORM 1 1
SAMPLING SITE OR TYPE CODE
SULFATE ION (MG/L) FORM 1 1
SULFATE (UEO/L)
SULFATE DEPOSITION (G/M**2/YR)
SUM OF BASE CATIONS (UEQ/L)
SAMPLER ID NUMBER FORM ID
STATE (TWO-LETTER ABBREV)
NSWS STRATA
TEMPERATURE AT 4 OR 5 M (DEG C) FORM ID
TEMPERATURE AT 6 OR 10 M (DEG C) FORM ID
TEMPERATURE AT 8 OR 15 M (DEG C) FORM ID
TEMPERATURE AT 10 OR 20M DEG C FORM ID
TEMPERATURE AT 12 OR 25M DEG C FORM ID
TEMPERATURE AT 14 OR 3 OM DEG C FORM ID
TEMPERATURE AT 16 OR 35M DEG C FORM ID
TEMPERATURE AT 18 OR 40M DEG C FORM ID
TEMPERATURE AT 20 OR 45M (DEG C) FORM ID
TIME SAMPLED (24 H) HH:MM FORM ID
TEMPERATURE (DEG C) AT 1.5M FORM ID
TEMPERATURE AT 0.6*DEPTH (DEG C) FORM ID
AIR TEMPERATURE (DEG C) FORM ID
TEMP DIP 1.5M-BOTTOM (DEG C) FORM ID
TEMP DIP 1.5M-0.6*DEPTH (DEG C) FORM ID
TEMP AT BOTTOM-105M (DEG C) FORM ID
TURBIDITY (NTU) FORM 2
TEMPERATURE AT 50 M (DEGC) FORM ID
VISIT FORM ID
WATERSHED AREA/LAKE AREA
WATERSHED AREA/LAKE AREA - ALSC
ESTIMATED WIND DIRECTION FORM ID
D)WELL I)ND L)OG M)INE R)OAD S)TOCK
WATERSHED AREA (HA)
WATERSHED AREA (HA)-ALSC
DISTURBW/I 100M-OTHER
ESTIMATED WIND SPEED FORM ID
MODIFIED PHASE I WEIGHT
ORIGINAL PHASE I WEIGHT
CONDITIONAL PHASE II WEIGHT
Card
#
16
16
16
16
16
16
16
16
16
17
17
17
17
17
17
17
17
17
18
18
18
18
18
18
18
18
19
19
19
19
19
19
19
19
20
20
20
20
20
20
20
20
21
21
21
21
21
21
22
WT2T99
Num 8.3
TOTAL PHASE II WEIGHT
22
79
-------
Table B-4. Card-Image Format Definition, ELS-II Data Set BATHYM
Card Variable Var.
# Name Type
Format
Start
Col.
End
Col.
Label
Card
#
1 FRATE Num 8.3 1 8 FLUSHING RATE (YRS) [WAREA* RUNOFF /VOL] 1
1 LAKE ID Char 7.0 10 16 LAKE ID 1
1 LAT DD Num 8.4 18 28 LATITUDE (DECIMAL DEGREES) 1
1 LITTAREA Num 8.2 28 38 LITTORAL ZONE (<= 10 FT DEPTH) AREA (HA) 1
1 LONG DD Num 8.4 38 46 LONGITUDE (DECIMAL DEGREES) 1
1 MAXDPM Nurn 8.1 48 56 Maximum Depth (m) 1
1 MEANDPM Nurn 8.1 58 66 MEAN DEPTH (M) [VOL/AREA] 1
1 RUNOFF Num 8.3 68 76 RUNOFF (CM/YR) 1
2 SAREA Num 8.2 1 8 Lake Surface Area (ha) 2
2 SHORLN Num 8.3 10 18 SHORELINE LENGTH (KM) 2
2 SHRDEV Num 8.4 20 28 SHORELINE DEVELOPMENT (L/2SQRT(PI*A)) 2
2 VOLDV Num 8.4 30 38 VOLUME DEVEL. (3*MEAN DEPTH/MAX DEPTH) 2
2 VOLUME Num 8.3 40 48 LAKE VOLUME (10**6 CUBIC METERS) 2
2 WAREA Num 8.2 50 58 Watershed Area (ha) 2
80
-------
Table B-5. Card-Image Format Definition, ELS-II Data Set SUSZOOP
Card
#
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
5
5
5
5
6
6
6
6
6
6
6
7
7
7
7
7
7
7
Variable
Name
JARID
LAKE ID
RD1000
RD1001
RD1002
RD1003
RD1004
RD1005
RD1008
RD1007
RD1008
RD1009
RD1010
RD1011
RD1030
RD1031
RD1040
RD1041
RD1050
RD1051
RD1060
RD1070
RD1101
RD1102
RD1103
RD1104
RD1105
RD1110
RD1400
RD1401
RD1402
RD1403
RD1404
RD1405
RD1406
R01407
RD1500
RD1501
RD1510
RD1511
RD1512
RD1800
RD1809
RD1900
RD1901
RD1902
RD1903
RD1904
RD1910
RD1911
Var.
Type
Num
Char
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Formal
2.0
7.0
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
Start
Col.
1
4
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
End
Col. Label
21
1 0 LAKE IDENTIFICATION NUMBER
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
Card
#
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
5
5
5
5
6
6
6
6
6
6
6
7
7
7
7
7
7
7
Table B-5. (Continued)
81
-------
Card
#
8
8
8
8
8
8
8
9
9
9
9
9
9
9
10
10
10
10
10
10
10
11
11
11
11
11
11
11
12
12
12
12
12
12
12
13
13
13
13
13
13
13
14
14
14
14
14
14
14
Variable
Name
RD1912
RD1921
RD1922
RD1923
RD1924
RD2100
RD2101
RD2102
RD2200
RD2300
RD230I
RD2310
RD2311
RD3100
RD3101
RD3300
RD4100
RD51O1
RD5102
RD5110
RD5201
RD5301
RD5310
RD5311
RD5312
RD5501
RD5502
RD5509
RD5510
RD5511
RD5512
RD5513
RD5519
RD5520
RD5530
RD5540
RD5550
RD5560
RD5600
RD5701
RD5702
RD5703
RD5704
RD5705
RD5706
RD5707
RD5708
RD5709
RD5710
Var.
Type
Num
Num
Num
Num
Nurn
Num
Nurn
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Nurn
Num
Num
Format
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
Start
Col..
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
End
Col.
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
Card
Label #
8
8
8
8
8
8
8
9
9
9
9
9
9
9
10
10
10
10
10
10
10
11
11
11
11
11
11
11
12
12
12
12
12
12
12
13
13
13
13
13
13
13
14
14
14
14
14
14
14
82
-------
Table B-5. (Continued)
Card
#
15
15
15
15
15
15
15
16
16
16
16
16
16
16
17
17
17
17
17
17
17
18
18
18
18
16
18
18
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
Variable
Name
RD5601
RD5602
RD5803
RD5804
RD5805
RD5809
RD6300
RD6301
RD6309
RD6401
RD6402
RD6411
RD6412
RD6421
RD6422
RD6423
RD6429
RD6431
RD6500
RD7100
RD7101
RD7110
RD7111
RD7112
RD7121
RD7122
RD7123
RD7124
RD7129
RD7131
RD7141
RD7142
RD7143
RD7144
RD7160
RD7200
RD7500
RD8000
RD9100
RD9101
RD9102
RD9199
RD9200
RD9201
RD9300
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Num
Formal
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
9.3
Start
Col.
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
32
42
52
62
1
12
22
End
Col.
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
10
20
30
Card
Label #
15
15
15
15
15
15
15
16
16
16
16
16
16
16
17
17
17
17
17
17
17
18
18
18
18
18
18
18
19
19
19
19
19
19
19
20
20
20
20
20
20
20
21
21
21
83
-------
Table B-6. Card-Image Format Definition, ELS-II Data Set SUSCHLA
Card
#
I
I
1
I
I
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4
4
4
Variable
Name
BATCH ID
CHLA AC
CHLA AR
CHLATTC
CHLATTT
CHLB~AR
CHLBTTT
DAT ANAL
DG AR
DG~HT
FLU CHL
FLUT)IL
FLITSCL
FLU STD
FLUIVAL
LAKE ID
SAM ID
SAM~TYPE
SA1VTVOL
SOLVOL
SPCCHLA
SPC CHLB
SPECFILE
SPEC 650
SPEC~665
SPEC 700
Var.
Type
Num
Num
Num
Num
Num
Num
Num
Char
Num
Num
Nurn
Nurn
Num
Char
Num
Char
Nurn
Char
Num
Num
Num
Num
Char
Num
Num
Num
Format
8.0
9.3
9.3
9.3
9.3
9.3
9.3
10.0
9.3
9.3
9.3
9.3
9.3
2.0
9.3
7.0
8.0
4.0
9.3
9.3
9.3
9.3
10.0
9.3
9.3
9.3
Start
Col.
1
10
20
30
40
50
60
1
13
23
33
43
53
63
66
1
10
20
25
35
45
55
65
1
12
22
End
Col..
8
18
28
38
48
58
68
11
21
31
41
51
61
64
74
8
18
23
33
43
53
63
74
10
20
30
Label
BATCH ID CODE
CHLa CONC. BASED ON PEAK AREA
CHLa PEAK AREA
CHLa CONC. BASED ON PEAK HIGHT
CHLa PEAK HEIGHT
CHLb PEAK AREA
CHLb PEAK HEIGHT
DATE ANALYZED
DEGREDATION PRODUCTS PEAK AREA
DEGREDATION PRODUCTS PEAK HEIGHT
CONC. OF CHLa MEASURED WITH FLUOROMETER
DILUTION FACTOR FOR FWOR. MEASUREMENT
FLUOROMETER SCALE
FLUORESCENCE STANDARD (MEASURED)
FLUORESCENCE VALUE
NSWS LAKE ID CODE
SAMPLE ID CODE
SAMPLE TYPE
SAMPLE VOLUME
SOLVENT VOLUME
CONC.OF CHLA AS MEASURED WITH SPEC
CONC. OF CHLb AS MEASURED WITH SPEC
SPECTROPHOTOMETRY FILE
SPECTROPHOTOMETRY @ 650 nm
SPECTROPHOTOMETRY @ 665 nm
SPECTROPHOTOMETRY ® 700 nm
Card
#
1
1
I
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
4
4
4
84
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Table B-7. Example Card-Image Listing for One Record In Data File FASFIM01.DAT
123 4567 8
12345678901234567890123456789012345678901234567890123456789012345678901234567890
H 28.6 63.6000 32.0000 31.7000 1.8 31.6000 140.2000 1
1.1965 22.8711 116.3700 711 3 -999 -999 -999 2
-999 -999 -999 -999 -999 -999 1.767 88.1730 3
139.2400 0.194 5.4730 1 36033 0.0000 25 -999 4
17.6 -999 -999 29OCT86 0.410 0.107 0.385 -999 5
3.60 10.80 -999.00 -999.00 -999 3.0 400000 6
-999.0 -999.0 1 497.1 497.0 23.000 0.0198 1.0420 7
1.8200 6.1270 0.042 BAB DRAINAGE I/O 0.302 7.7220 8
VERSAR 1A1-028 44-21' 10"N 44.3528 03-128 9
DRY CHANNEL POND 27.10 27.70000 0.302 0.72924 10
74.4375 74-26'15"W OGDENSBURG 11
7.5'X15' UPPER SARANAC LAKE 0.242 19.9070 11.000 12
0.497 21.6200 -0.000 -0.0000 0.0802 1.2940 1.19 N 90 13
31.9660 5.31 5.63 5.74 5.66 5.70 -999.00 -999.00 14
0.917 RAINPREV 4.8000 REG/ MODERATE 0.330 1.800 15
20 0.508 0.635 4 A -999.0 Y 3.0 -999.0 16
0.844 VI 4.920 102.4340 2.00 137.4219 84 NY 1A1 17
-999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 -999.0 18
-999.0 10:10 8.2 -999.0 15 -999.0 -999.0 -999.0 19
0.40 -999.0 1 7.64 7.62094 SW DR 207.000 20
211.10000 MODERATE 9.633 9.633 1.2754 21
12.285 22
85
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