United State*
Environmental Protection
Agency
Office ol Water
(4203)
EPA 833-&.93-002
April 1W4 (Rev.)
GUIDANCE FOR THE PREPARATION OF
DISCHARGE MONITORING REPORTS:

FACILITIES REQUIRED TO REPORT
SEMI-ANNUAL MONITORING RESULTS
UNDER NPDES STORM WATER
GENERAL PERMITS
                              Printed on Recycled Paper

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                        TABLE OF CONTENTS


1.  INTRODUCTION	 2

2.  GENERAL INFORMATION  	 2

   2.1 MONITORING REQUIREMENTS  	 2
   2.2 REPORTING REQUIREMENTS	 3

3.  STEP-BY-STEP INSTRUCTIONS FOR RECORDING MONITORING RESULTS  	 7

   3.1 PREPARING A DMR 	 7

4.  STATE-SPECIFIC REQUIREMENTS	  11

   4.1 EPA REGION I	  11
     4.1.1 MAINE	  11

   4.2 EPA REGION II	  11
     4.2.1 PUERTO RICO 	  11

   4.3 EPA REGION III	  12
     4.3.1 DISTRICT OF COLUMBIA	  12

   4.4 EPA REGION VI 	  12
     4.4.1 LOUISIANA  	  12
     4.4.2 NEW MEXICO 	  12
     4.4.3 OKLAHOMA	  12
     4.4.4 TEXAS 	  13

   4.5 EPA REGION VIII	  16

5.  REGIONAL MAILING ADDRESSES AND PHONE NUMBERS 	  17


                               EXHIBITS

EXHIBIT 1-1: LOCATIONS IN WHICH THE GENERAL PERMITS ARE APPLICABLE	  1

EXHIBIT 2-1: MONITORING PERIODS AND REPORTING DEADLINES 	  4

EXHIBIT 2-2: GENERAL PERMIT PARAMETER REQUIREMENTS	  5

EXHIBIT 2-3: ALTERNATIVE TO WET TEST PARAMETERS	  6

EXHIBIT 3-1: SAMPLE DMR  	  9

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EXHIBIT 1-1:  LOCATIONS IN WHICH THE GENERAL PERMITS ARE APPLICABLE
                     The conditions outlined in this guidance document are
                     applicable only to facilities covered by EPA-issued pennits. If
                     you are located in a NPDES-authorized State, you must consult
                     vour State-specific storm water general permU or your State
                     permitting authority for specific oennit conditions. The EPA-
                     issued general pennits are available to industrial dischargers in
                     the following States and Territories:

                     •    All lands (including Indian and Federal) in:
                            Alaska
                            American Samoa
                            Arizona
                            District of Columbia
                            Florida
                            Guam
                            Idaho
                            Johnston Atoll
                            Louisiana
                            Maine
                            Massachusetts
                            Midway and Wake Islands
                            New Hampshire
                            New Mexico
                            Oklahoma
                            Puerto Rico
                            Texas
                     •    Indian lands in:
                            California
                            Colorado
                            Mississippi
                            Montana
                            Nevada
                            New York
                            North Carolina
                            North Dakota
                            Utah
                            Washington
                            Wyoming
                      •    Federal Facilities in:
                            Colorado
                            Delaware
                            Washington
     NPDES Storm Water General Permit DMR Guidance
Page 1

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L   INTRODUCTION

Under the National Pollutant Discharge Elimination
System  (NPDES),  the  Environmental  Protection
Agency (EPA) has issued general pennits for storm
water discharges associated with industrial activity in
States and territories mat have not been delegated
NPDES permitting authority. See Exhibit 1-1 on the
opposite page for a list of these locations.   The
pennits  were  published  on  September 9  and
September 25, 1992, in the Federal Register (57 FR
41297 and 57 FR 44438).

The permits  require certain categories of facilities to
report semi-annual monitoring results for storm water
discharges.  This booklet:

•    clarifies which industrial activities are required
     to report their storm water discharge monitoring
     results  (Section 2.1);

•    identifies the parameters to  be monitored, and
     when and where to report (Sections 2.1, 2.2);

•    provides   instructions  on  how  to  record
     monitoring results  on  a Discharge Monitoring
     Report (DMR) (Section 3); and

•    lists additional State-specific requirements that
     facilities, depending on where they are located.
     must meet in addition to the EPA requirements
      in preceding sections (Section 4).

If you have  any questions regarding the storm water
program,  please  call   your permitting  authority.
Permitting authority addresses and phone numbers are
listed in Part 5 of this guidance. If you would like to
obtain guidance on procedural methods for conducting
storm water sampling,  the  guidance  manual  titled
NPDES Storm Water Sampling Guidance Document
(EPA #833-8-92-001, July,  1992) can be obtained by
contacting the EPA Office of Water Resources Center
at (202)260-7786.

This  booklet will be  revised  and  expanded as
necessary  to  reflect   changes  in  the  reporting
requirements  in  storm  water  general permits.
Comments from users are welcome.  Send comments
to: U.S. EPA, Office of Wastewater Enforcement and
Compliance, Mail Code  4203, 401 M Street, S W
Washington, D.C. 20460.                    '  "

2.   GENERAL INFORMATION

This section reviews the requirements for reporting
semi-annual monitoring results in EPA's storm water
general pennits. The numbers in brackets below refer
to the section of the general pennits in which the
requirement can  be found.   In addition  to the
requirements  listed  in this section,  facilities  must
comply with specific State and Regional requirements,
which can be found in Section 4 of these  instructions.
For more details, please refer to the State and Region
specific  requirements in  the permit under which the
facility is covered (Section XI in 57 FR 41297 and 57
FR 44438).

2.1  MONITORING REQUIREMENTS

Faculties   That  Must   Report   Semi-Annual
Monitoring Results
Certain  storm water discharges  from the industrial
activities listed below must be monitored twice per
year, with the results reported annually (see Exhibit 2-
1 for monitoring periods and reporting  dates).  If a
facility  has storm water discharges associated with
industrial   activity  from   multiple   and  separate
activities,   only   those   discharges   where   the
requirements apply must be monitored.

•    Section   313  of   Emergency  Planning  and
                 Right to Know  Act  (EPCRA
     facilities:
     Storm water that is discharged from the facility
     that  comes into contact with any  equipment,
     tank, container or other vessel or area used for
     storage of a Section 313 water priority chemical,
     or located  at "a truck  or  rail car  loading  or
     unloading area  where a  Section  313  water
     priority chemical is handled. [Pan VI.B.2.a]
Wood
                    facilities:
     Storm water discharges from areas mat are used
     for wood treatment, wood surface application or
     storage of treated or surface-protected wood at
     any wood preserving or wood surface facilities.
     [Part VLB2.d]
     NPDES Storm Water General Permit DMR Guidance
                                      Page 2

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Discharges Under More Than One Category
Facilities with discharges  that fall under more than
one reporting category, where the discharges are co-
mingled, must monitor and  report by  the earliest
applicable date and  then annually by that date.  If
discharges  under different categories  are  not co-
mingled, then monitoring  and  repotting  can be
performed either together, according to the earliest
date,  or separately  according to the  dates for the
applicable categories.  (Coal  pile runoff may not be
commingled prior to sampling because of the effluent
limitations contained in the permits - see Section 3.1
of these instructions.) [Pans VI.B.2.a-f, VI.D.l.a-d]

How  to Report
A separate DMR form is required for each  storm
event and for each outfall sampled. DMRs must be
signed and mailed to  the appropriate EPA Region,
and must be postmarked by the date specified in
Exhibit 2-1. The permittee should retain a copy. See
Section S for a list of Regional mailing addresses and
phone numbers. [Pan VI.D.l]
Substantially Identical Discharges
If there is reason to believe that the discharges fror
two or more outfalls are substantially identical, one c
the outfalls may be monitored and that data submitted
for an substantially identical outfalls.  A description
of the location of the outfalls, an explanation of why
the outfalls have substantially identical discharges,
and  the  size of  the  drainage  area and runoff
coefficient must be submitted as an attachment to the
DMR. [Part VLB.6]
 EXHIBIT 2-1:  MONITORING PERIODS AND REPORTING DEADLINES
Monitoring and Reporting
Dates
Monitoring Periods
DMR postmark deadlines
Section 313
ofEPCRA
Jan-June
July-Dec
January 28
Wood
Treatment
Jan-June
July-Dec
January 28
Primary
Mttal
Mar-Aug
Sept-Feb
April 28
Coal Ml*
Runoff
Mar-Aug
Sept-Feb
April 28
Battery
Reclaimers
Mar-Aug
Sept-Feb
April 28
Land
Disposal
Oct-Mar
Apr-Sept
Oct. 28
      NPDES Storm Water General Permit DMR Guidance
                                      Page 4

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Primary
                  industries:
     Stonn water discharges from industrial activities
     classified as Standard  Industrial Classification
     (SIC) 33. [Part VI.B.2.b]

•    Coal piles:
     Coal pile runoff. [Pan  VLB.2.e]

•    Battery reclaimers:
     Storm water discharges from areas used  for
     storage  of lead acid batteries,  reclamation
     products, or waste products, and areas used for
     lead acid battery reclamation. [Pan VI.B.2.f]

•    Land  disposal  units/Indnerators/Boilers  and
     Industrial Furnaces  (BEFs):
     Storm  water discharges  from any  active or
     inactive landfill, land application sites, or open
     dumps without a stabilized final cover that has
     received any industrial wastes (other than wastes
     from a  construction  site) and incinerators,
     including BIFs that bum  hazardous waste and
     operate under interim status or a permit under
     Subtitle C of RCRA. [Part VI.B.2.C]

Parameters to Monitor
Exhibit 2-2 lists the specific parameters (pollutants)
that must be monitored for  each industrial category.
If more  than one of  these categories applies  to  a
particular discharge, the discharge must be monitored
for all parameters  listed in each  category. [Parts
VI.B.2.a-f]

WET Test Alternative
Facilities that must monitor for whole effluent toxicity
(WET),  instead may  monitor for  those  pollutants
identified in Tables II and in of Appendix D of 40
CFR 122 (see Exhibit 2-3) that are known or believed
to be  present at the  facility.   Facilities  should
determine which of these pollutants may be present in
or absent from the discharge  through a  reasonable
 best  effort   to  identify significant  quantities  of
 materials or chemicals present at the facility.  [Pan
 VI.B.8]

 Storm Event Characteristics
 The following information  must be provided on the
 DMR for the storm event that produced the discharge:
•    the date and duration of the storm,
•    the duration between the storm sampled and the
     end of the previous measurable storm of greater
     than 0.1 inch,
•    a measurement or estimate of the amount of
     rainfall Qn inches), and
•    an estimate of the total volume of the discharge
     sampled (in gallons). [Pan VLB .2]

Adverse  Weather Waiver
If samples cannot be collected due to adverse weather
conditions, a description of why samples could not be
collected must be submitted in  lieu of a DMR.  A
waiver  because of adverse  weather cannot  be
submitted more  than once in any two-year period.
[Pan VI.B.5]

Exemption to Monitoring Requirements
As an alternative to monitoring an outfall, an annual
certification may be  made that material  handling
equipment  or activities; raw  or waste  materials;
intermediate,  final,   or   by-products;   industrial
machinery  or operations;  and significant  materials
from past activity are not presently exposed to storm
water and win not  be exposed for one year.  The
certification should be made at the start of each one-
year reporting period  and kept with the  facility's
storm  water  pollution  prevention   plan.    This
certification is then  submitted in lieu of the DMR at
the appropriate time (see Exhibit 2-1).  [Pan VI.B.7]

2.2  REPORTING REQUIREMENTS

When to Monitor and Report
Samples must be collected and analyzed at least once
during each six-month monitoring period. Monitoring
results must be submitted annually.  See Exhibit 2-1
for monitoring periods and reporting dates. Results
do not have to be submitted until the facility has been
covered by the permit for a full 6-month monitoring
 period. [Parts VI.B^.a-f, VI.D.l.a-c]

 More Frequent Monitoring
 If sampling is conducted more frequently than semi-
 annually, ajl sampling results must be submitted.  A
 separate DMR  is  required for each storm  event
 sampled. [Part VI.D.l.a-c]
     NPDES Storm Water General Permit DMR Guidance
                                                                                        Page 3

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EXHIBIT 2-2:  GENERAL PERMIT PARAMETER REQUIREMENTS
Facility Type -»
Parameter to be Monitored (units) 1
oil ft grease (mg/I)
5 day bio. oxygen dem. (BODS) (mg/I)
chemical oxygen demand (COD) (mg/1)
total suspended solids (TSS) (mg/I)
total kjeldahl nitrogen (TKN) (mg/I)
total phosphorus (mg/1)
pH (SAL)
acute whole effl. tox. (WET)
Section 313 water priority chemicals *
pentachlorophenol (mg/I)
total recoverable arsenic (mg/1)
total recoverable chromium (mg/1)
totahrecoverable copper (mg/1)
total recoverable lead (mg/1)
total recoverable cadmium (mg/I)
effluent guideline pollutants *
total recoverable nickel (mg/1)
total recoverable zinc (mg/1)
total recoverable magnesium (mg/1)
dissolved magnesium (mg/I)
total dissolved solids (TDS) (mg/1)
total organic carbon (TOQ (mg/I)
total recoverable barium (mg/I).
total cyanide (mg/1)
total mercury (mg/1)
total recoverable seknhon (mg/1)
total recoverable silver (mg/I)
Section 313
ofEPCRA
X
X
X
X
X
X
X
X
X


















Wood
Treatment
X

X
X


X
x1-4

XJ
X*
X*
X1














Primary
Metal
X

X
X


X
X«


X«
X«
X«
X
X'
X











Coal Pile
Runoff
X


X


X





X



X
X









. Battery
Reclaimers
X

X
X


X





X
X













Land
Disposal
X

X

X

X
X


X
X

X
X



X
X
X
X
X
X
X
X
X
 3
 4
 5
 t
PeiiniOBBS are required to monitor for any Section 313 water priority chemical for wttch the facility is subject to reporting requirement! under
lection 313 of the Emergency Planaiag and Community Right to Know Act of 1986. (See the general permit. Addendum B, for a list of
Section 313 Water Priority Chemicals.)
PemitHees are required to monitor for any pollutant United in an effluent guideline » which the faculty'* proceu wanewtter is inbject (See
40 CFR Subchapcer N).
Required for wood treatment facilities that use cUorophenoiic formulations.
Required for wood treatment facilities that use creosote formulations.
Required for wood treatment facilities that use chromium-anenic formulations.
Facilities that are clasrifted as SIC 33 only became they manufacture pure alicon and/or tesicoadoctor grade silicon are not required
to monitor for  WET, u. arsenic, tr. chromium, ur. copper, or tr. cadmium, but most moniior far other panmeters listed.
      NPDES Storm Water General Permit DMR Guidance
                                                                                                       PageS

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EXHIBIT 2-3:  ALTERNATIVE TO WET TEST PARAMETERS

 See WET Test Alternative in Section 22)
                         Federal Register / VoL 57, No. 175 / Wednesday. September 0, UB2 / Notice*
                                                                      41331
        Table H—Organic  Toxk Pollutants la
          Each -of Four Fraction! la Analysis by
          CM Chromatography/MaM Spectroe-
          copy (GS/MS)

                       Volatiltt
        •ereliin
        Mrytonitrile
        bemane
        bromoform
        carbon tetnchlortde
        chlorobenzene
        chlorodibromomethane
        chloroe thane
        2-chloraethylvinyl ether
        chloroform
        dichlorobromomethane
        1,1-dichloroethane
        1,2-dichloroethane
        U-dichloroethylene
        1.2-dichloropropane
        14-dkhloropropylene
        ethylbenzenc
        methyl bromide
        methyl chloride
        methylene chloride
        1.1,2.2-tetrachloroethane
        tetr* chloroe thylene
        toluene
        1,2-trani-di chloroe thylene
        Ll.Mrichloro* thane
        1.1.2-trichloroe thane
        thchloroethylene
        vinyl chloride
                    Acid Compound*
        2-chlorophenol
        2.4-dichloropbeool
         2.4-dimethylphenol
         4.»Klinilro-o-cr«iol
         2.4-dinitrophenol
         2-nitrophenol
         4-oltrophenol
         p-chloro-m-cretol
         pentachloraphenol
         phenol
Table  B—Organic Toxk  PoDulanto la
  Bach of Four Fractkxu la Aaaljrato by
  Gas Chnoatography/MaM  Speoteba.
  oopy (OS/MS)—Continued

2.44-trichlorophanol
             Bat»/N»utral
acanaphthana
aeaaaphthyia&e
asthraoaaa
                                                                                    Table  fl  Onank  Toxk Pollutant*  in
                                                                                      Each of Few Frectioaa In Analysis by
                                                                                      Gas CbromatOfraphy/MaM Spectroa-
                                                                                      copy (OS/MS)—Continued
                                                                                                   fmtieititt
akUn
alpha-BHC
beU-BHC
baa»(a)aBthncene
chlordaM
U'-OIT
baasotaU)parjrltae
baganOOflvoraathene
bU(>-OBiofO«tnoxy)methane
bto(>-diloro«thyi)ether
oMKhlotoUopropyDether
bto(»-ethyln«xy1)pnthelete
44mmopbenyl phenyl ether
butjrlbaacyl phthalate
Khlorooaphthalene
4-efalerophaayl phenyl ether
c&ryiaiie
dlbanzo(aji)aathracene
l^diealorobmxene
V4-dichioroben»n«
t^-dlcalorobennne
dleldrin
aadoaalba aalfata
eixbte aldabyda
htptaobkr
hepUc&lor epoxlde
PCB-U4*
PCB-US4
PC8-1Z&
PC8-Utt
PCft-1148
pc»-ueo
PCs-ma
 dtaOqd phthaltte
 dimathyi phthalate
 dl-o-Wtjri phthalete
 M^taitrololurae
 te-diai«rotoluen«
 dt*-octyl phthalate
 l^dlphaajrihydraxine (ee tiobenxene)
 Oaroraathane
 flurana
 bexaehloro benzene
 haxaoUorobvUdieae
 kaxaoUorocyelopentadiene
 bexaoUoroethuie
  Uophorone
  nitnbenune
  N-aJtn>eodimethyl«mlne
  Mniltraaodi-o-propylamine
  N-oltroeodlph«ny)tmine
  phananthrene
  pyraaa
  12.4-triealorobeozcne
    Table ID— Other Toxk Pollutants
 (Matalf and Cyanide) and Total Phenols

 Antimony. Total
 Arsaaie. Total
 BerrDhmi. Total
 Cadmtass. Total
 Qiromtaak Total
 Coppar. Total
 Uad, Total
 Uaroary. Total
 MekaL Total
 Sflw. Total
 ThaBtak. Total
 Zinc. Total
 Cyaalda. Total
 Phanola. Total
           NPDES Storm Water General Permit DMR Guidance
                                                                     Page 6

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3.   STEP-BY-STEP
     INSTRUCTIONS FOR
     RECORDING MONITORING
     RESULTS

Please read Sections  2 and  3, and refer to the
additional State-specific requirements in Section 4,
prior to recording monitoring results on a DMR.

When following these step-by-step instructions, refer
to the sample DMR for guidance (Exhibit 3-1).  The
words and phrases in italics in the following step-by-
step instructions refer to specific locations or headings
on the DMR. The steps are identified on the sample
by the step number enclosed in a circle.

3.1  PREPARING A DMR

(If more than one page is needed to record monitoring
results, enter the information for Steps I, 2, 3, 4, 5,
and 13 on every page.  Remember that a separate
DMR is required for each storm event  and each
outfall sampled.)

1)   Name/Address
Enter  the  Permittee  Name/Mailing  Address  and
Facility Name/Location, if different.

2)   Permit Number
Enter the Permit Number for your facility.   The
permit  number  is  the  unique  number  assigned
specifically to  your  facility for coverage under  a
storm water general permit  Your facility's permit
number  can be found in the letter you received
confirming that your facility is covered by the permit

3)  Discharge Number
If you are submitting monitoring results for more than
one outfall, you must record die outfall's Discharge
Number. You must assign a unique discharge number
(e.g.. 001,002, etc.) to each outfalL It is appropriate
to assign each outfall the same number it is assigned
in your facility's storm water pollution prevention
plan.  If the facility has existing NPDES permits for
other  outfalls, do not duplicate  outfall  numbers.
Rather, begin with the number following the last one
 assigned in your existing permit  If you believe that
 the discharges  from  your facility's outfalls are
substantially  identical,  please see  Substantially
Identical Outfalls in Section 2.2.

4)   Monitoring Period
Under  Monitoring Period,  enter  dates  for  the
beginning and end of the six-month period covered by
the DMR (see Exhibit 2-1).

5)   Discharge Category
In the  top right comer of the form, indicate  the
category  or categories  for the discharge that was
sampled (i.e., Section 313 EPCRA, primary metal,
etc.).

6)   Storm Event Characteristics
Use  the  first  line to  record the  required storm
information.  Under Parameter, enter the date and
duration of the storm, and the time elapsed since the
last measurable storm greater than 0.1 inch.

Under  Quantity or Loading, enter in the Maximum
column die rainfall measurement or estimate for the
storm that generated the discharge.

Under  Quality  or Concentration,  enter   in  the
Maximum column an estimate of the total volume o
the flow through the outfall.

The rainfall estimate should be in inches  and the
volume estimate should be in gallons.   Record the
units that were used in the Units columns.

7)   Sample Type
For  discharges  from  holding  ponds  or  other
impoundments with a retention period greater than 24
hours,  a minimum of one grab sample may be taken
for all  parameters.

For all other discharges, both a grab sample and a
composite sample must be collected and analyzed for
all parameters except the following five (for which
only a grab sample is required):
     pH,
     cyanide,
     whole effluent toxicity,
     fecal coliform. and
     oil and grease.
     NPDES Storm Water General Permit DMR Guidance
                                     Page?

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Please note that you only have to monitor for those
parameters listed in your permit (see Exhibit 2-2 and
Section 4).

All samples must be collected  from a discharge
resulting from a storm of greater than 0.1 inch in
rainfall and  that occurs  at least 72 hours after the
previous storm of 0.1  inch or more.  Grab samples
must  be  taken  during the first 30 minutes of the
discharge, unless impracticable, in which case a grab
sample may be taken  during ale first hour.  If the
grab sample is not taken during the first 30 minutes,
an explanation of why this was not possible must be
submitted with the DMR.

8)   Parameters - Sampled Pollutants
Enter each parameter as specified in the monitoring
requirements of your  permit (see Exhibit  2-2  and
Section 4).  One line is needed for each sample type.
Therefore,  to   report  results  for  both  grab  and
composite samples of the same parameter, use two
lines.

9)   Recording of Sample Results
Enter the  monitoring  results  for each parameter
according to the following format  Under Quality or
Concentration,  record  grab  sample  results in the
Maximum  column  and record composite  sample
results in the Average column. Remember to use one
line for each sample type.

Under the Sample Type column, record the type of
sample used for the analysis. Record "O" for a grab
sample,  and "C"  for a composite  sample.   For
composite samples, indicate if the results are from a
flow-weighted (F) or  time-weighted (T) composite.
Also, record the units  used in the Units column.

10)  Effluent Limitations
The only non-State specific effluent limitations listed
in  EPA's general permits are for coal pile runoff.
The effluent limitations for coal pile runoff are: a
maximum concentration at any time of 50 mg/l total
suspended solids (TSS) and a pH within the range of
6.0 - 9.0  standard units.  Compliance with these
effluent limitations must be achieved no later man
October 1, 1995.
To  report monitoring  results for parameters  where
effluent limitations apply, enter the limitation as the
Permit Requirement under Quality or Concentration.
Under the No. Ex column, enter a  "r* if the sample
measurement during the monitoring period exceeded
the  effluent limitation for that parameter. Otherwise,
leave the space blank.

11)  State-Specific Effluent Limitations
State-specific effluent  limitations also may apply to
your  discharges  (see  Section 4).   If your permit
contains State-specific effluent limitations that apply
to  the discharge,  enter  the limitations using the
instructions hi the second  paragraph of step 10. (No
State-specific effluent  limitations are shown on the
sample DMR.)

12)  Biomonitoring  Results
If a whole, effluent toxicity (WET) test is conducted,
all  of the test organisms, procedures,  and quality
assurance criteria that are used must be in accordance
with the following EPA guidance  manual: Methods
for Measuring the Acute Toxicitv of Effluents and
Receiving  Waters to   Freshwater  and  Marine
Organisms (EPA/600/4-90-027, revised September,
1991).

For WET results, if there is no  statistical  difference
between  the  control mortality and  the effluent
mortality (no dilution), report a "0" in the Maximum
column under Quality  or Concentration,  If there is a
statistical difference between the control mortality and
the effluent mortality, report a "1" in the  Maximum
column under Quality or Concentration.  (No WET
test results are shown  on  the sample DMR.)

13)  Identification/Certification
Enter Name/Title of Principal Executive  Officer,
Signature of Principal Executive Officer or Authorized
Agent, Telephone Number, and Date at the bottom of
each page of the DMR after reading the Certification
Statement.

14)  Mailing the DMR
Send the completed DMRs to the appropriate EPA
Regional mailing address (see Section 5).  Please
make sure to provide  adequate postage.
     NPDES Storm Water General Permit DMR Guidance
                                      Page 8

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ADDRESS
  J.  Doe  Company


 523/CsoiniwEere_S_t.

'. Anjrwhere^. JQL_X5QQ9_
ilCZZ©
                                                             DISCHARGE MONI 1

                                                                (2-16)
                                                                           uNQ REPORT IDMKl
                                                         xXROOM999
                                                             PERMIT NUMBER
001
                                                                                 DISCHARGE NUMBER
FACILITY,


LOCATION
      C AUP        	
   ' ^^^V^^WW^O^  —   ^»™» «i- 	   • ~~~~ -^^^
                                                                   MONITORING PERIOD
                                                      FROM)
                                                           YEAR
                                                            93
                                                                 MO
                                                                      DAY
                                                        TO
                                                                               YEAR
                                                           (20-21)  (2223) (24-2S)
                                                                                     MO
                                                                                     12
                                                                                          DAY
                                                                       31
                                                                               (16-27) (lt-29) (10-3lf
            EXHIBIT 3-1: SAMPLE DMR FORM




                    Coal Pile  Runoff



             NOTE: Read Instructions before compiling Into form.
PAHAMETEM
November 10, 1993
TN 2 hours
•^ previous-1 month
®oil and
grease
® TSS
TSS
s
W^U
pn

total
recoverable
copper
total
recoverable
copper
X
SAMPLE
HIS
MJMT
SAMPLE
MEASUREMENT
I HRMTT
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
'PERMIT
REQUIREMENT
SAMPLE
MEASURFMFNT


^2S8SSwP
;. I^^C1™
SAMPLE
MEASUREMENT
REQUIREMENT
SAMPLE
MEASUREMENT
PERMIT
RCOUMEMtNT
NAME/TITLE PRINCIPAL EXECUTIVE OFFICER
©Jane Doe,
President
TYPED OR PRINTED
OCmnlOnlyl QUANTITY OR LOADING
(46-U) IS4-6I)
AVERAGE

«**»•••







*•*/*'• '""
..




1 CERTIFY UNDER PENALTY O
AND AM FAMILIAR WITH THE It
ON MY INQUIRY OF THOSE IN
OBTAINING THE INFORMATKM
IS TRUE. ACCURATE AND CO*
HIFICANT PENALTIES FOR SU
THE POSSIBILITY OF FINE ANI
S3 U.S.C. 1 1318. (ftmtHIa «•

MAXIMUM
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f LAW THAT 1 HAVE PERSONALLY f.
•FORMATION SUBMITTEO>IEREIN, A*
DIVIDUALS IMMEDIATELY RESPONS
* 1 BELIEVE THE SUBMITTED INFO
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OMITTING FALSE INFORMATION, IN
> IMPRISONMENT SEE IB US C 1
tf tttai amlultt MV indudt /Inn up
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DATE
94 1 10
YEAR MO DAY
COMMENT AND EXPLANATION OF ANY VIOLATIONS (Rtftmtct *U uiochmtms Htrt)
EPA Form 3320-
                   Pnvlout tdlttona may t>0 used.
                                                      (REPLACES EPA FORM I
                                                     IH MAY NOT BE USED.)
                                                                                                                                   OF

-------
PERMITTEE NAME/AC'  '*Sf/«M>
fKilUfNmmf/Ltnllo    'V>»    .  _     /-,

NAME	    I    Jj._®°& jCOJOEfOy	

ADDRESS	/^M I234_Somewhere_JJt_.	

	ZTClAnxwherfi t_XX_75Q09_'
FACILITY               ttjkWUT	
	•	SArtfc
LOCATION
NATIONAL K'LI.UI AN» "^CHARGE ELIMINATION SYSTEM(NPDESt
      DISCHAR    ^NITORINQ REPORT (DMK)

                      s
                                        EXHIBIT 3-1: SAMPLE DMR FORM



                                                      Pile  Runoff


                                          NOTE: Rod Instruction* twfora computing this lotm.
PARAMETER
(12-W
total recoverable
nickel
total recoverable
nickel
total recoverable
zinc
total recoverable
zinc




X
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
PERMIT
REQUIREMENT
SAMPLE
MEASUREMENT
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SAMPLE
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^•'•"•'tffttt'.^
' REQUIREMENT
NAMEftlTLE PRINCIPAL EXECUTIVE OFFICER
©Jane Doe,
President
TYPED OR PRINTED
(3 Card Only! QUANTITY OR LOADING
(46 ii) (14-6I>
AVERAGE














MAXIMUM














UNITS











(«jrdOnly> QUALITY OR CONCENTRATION
131-41) I4t-Ut tU-«l>
MINIMUM
'












'ff'.J-'-'
1 CERTIFY UNDER PENALTY OF LAW THAT 1 HAVE PERSONALLY EXAMINED
AND AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN. AND BASED
ON MY INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR
OBTAINING THE INFORMATION 1 BELIEVE THE SUBMITTED INFORMATION
IS TRUE. ACCURATE AND COMPLETE. 1 AM AWARE THAT THERE ARE SIG-
NIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION. INCLUDING
THE POSSIBILITY OF FINE AND IMPRISONMENT SEE i» U S C | 1001 AND
33 USC I I31» (Pnfltln man ikat tM/oni m,r mlujt fum up ,a |/fc«'v:.Vl "1


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SIGNATURE OF PRINCIPAL EXECUTIVE
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COMMENT AND EXPLANATION OF ANY VIOLATIONS (Rt/trtittt* H allot timtnts Itrre}
NO
EX
(62-6)













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DATE
94 1 10
YEAR MO 0*1

 r PA fnrm ii7n.i (R«v Q-Am Previous editions may b» used
                                                       (REPLACES EPA FORM T 40 WHICH MAY NOT BE USED)
                                                                                                                            PAGE
                                                                                                                                    Of

-------
4.   STATE-SPECIFIC
     REQUIREMENTS

In addition to following the instructions discussed in
Sections 2 and 3, dischargers in the States below must
comply with die following special monitoring and
reporting requirements. (Please see Part XI of your
permit for more specific details.) Please note that the
conditions outlined  in this guidance document  are
applicable only to facilities covered by EPA-issued
permits (see Exhibit 1-1).- If you  are located in a
NPDES-authorized  State,  you must  consult vour
State-specific storm  water general permit or vour
State  permitting   authority  for  specific   permit
conditions.

4.1  EPA REGION I

4.1.1 MAINE

Whole Effluent Toxicitv  (WED Test Procedures:
The  discharge  will  not lower the quality  of  the
receiving waters below the  minimum requirements of
their classification and will  satisfy  the appropriate
requirements of Maine law provided that  the  test
organisms include  ceriodaphnia and brook trout,
salvelinus fontinalis, to meet the  WET requirements
for storm water discharges associated with industrial
activity.

4.2  EPA REGION U

42.1 PUERTO RICO

Additional Parameters:  Permittees must install a rain
gauge  and  keep  daily  records  of the  amount of
rainfall.  A copy of these records must be submitted
on the 28th days of January, April, July, and October,
and  shall be attached to the DMR where appropriate.

Storm Characteristic Data:

•    In addition to the required storm characteristic
     data, permittees must provide an estimate of the
     size of the drainage area On square feet); and an
     estimate of the runoff coefficient of the drainage
     area [e.g., low (under 40%), medium  (40% to
     65%), or high  (above 65%)]. (Facilities subject
     to Section 313 of EPCRA and land  disposal
     units/incinerators/BIFs are  not  subject to  tiu>
     requirement.)    This information should  b
     included in the attachment containing the  rain
     gauge report

•    Permittees  subject  to   annual  monitoring
     requirements are not required  to provide an
     estimate of the total volume (in gallons) of the
     discharge sampled.

Sample Type: For data reported in a grab sample and
a composite sample:

•   'For the  first half of the sampling period, all
     samples  shall be collected from a  discharge
     resulting from a storm event that occurs at least
     72 hours from the previously measurable storm
     event
•    In  the event  that the permittee  is unable to
     satisfy this condition during the  first half of the
     sampling period, beginning on the first day of
     the second half of the sampling period, the
     permittee shall collect samples from a storm
     event that occurs at  least  48 hours  from the
     previously measurable event
•    The  permittee must document  the conditioi
     under which  the storm  water samples  were
     taken, how many manual samples were taken for
     the composite sample, and the date of  sampling.
     This information should  be attached to the
     sampling results.
     If samples cannot be collected, a certification of
     why it was not possible  to meet the above
     protocol may be submitted in lieu of  a DMR.

NOTE:   Please be  advised that on  September 24,
 1993,  EPA  Region  U  issued  a   revised  §401
Certification   (Storm   Water  General  Permit
Certification for Storm Water Discharges Associated
with  Industrial Activity)  for  Puerto  Rico.   This
revision modified "Special Condition  Number  13,"
which addresses monitoring requirements, but did not
change any other conditions of the Certification. This
modification has been incorporated into the General
Permit  and is reflected  in the above  summary.
 However, please be advised that permittees that were
covered under roe storm water general permit prior to
 this date  were  required  to comply with the permit
     NPDES Storm Water General Permit DMR Guidance
                                     Page 11

-------
conditions that were effective at that rime.
contact Region n for more information.
                                         Please
4J EPA REGION m

4.3.1  DISTRICT OF COLUMBIA

Additional Effluent Limitations: For coal pile runoff,
pH must be in the range of 6.0-8.5 standard units.

4.4 EPA REGION VI

4.4.1  LOUISIANA

Additional Parameters:
     Section 313 of EPCRA facilities: TOC
     Primary Metal facilities: TOC
     Land Disposal facilities: TKN
•    Wood Treatment facilities:  TOC
     Coal Pile Runoff: TOC
•    Battery Reclaimers: TOC

Additional Effluent Limitations:  For all discharges,
the daily maximums  are SO  mg/1 for TOC and 15
mg/1  for oil  and grease.   Permittees must be  in
compliance by October 1, 1995.

For oil and gas exploration and production facilities,
in  addition  to  the  limitations  above,  the  daily
maximums are  100  mg/1  for  COD.   Maximum
chloride concentrations must not exceed two times the
ambient concentration  of the receiving  water  in
brackish marsh areas, and must not exceed 500 mg/1
in freshwater or intermediate marsh areas and upland
areas.

Whole  Effluent  Toxicitv  (WEH Test Procedures:
Results must be summarized on Table VI-A  and
submitted to EPA with the DMR. (A copy of Table
VI-A is attached to these instructions.)

4.42 NEW  MEXICO

 Sample Type: All grab and composite samples must
 be collected from a discharge resulting from a storm
 that  is  greater than 0.1 inches in  magnitude and
 occurs  at least  150 hours from  the  previously
 measured storm.  There must be a minimum of 60
days between sampled storms for facilities required to
monitor semi-annually.

Wftpfe qftlSftUt TqricitV  fWED Teyt Pm^i^e-
Results must be summarized on Table VI-A and
submitted to EPA with the DMR. (A copy of Table
VI-A is attached to these instructions.)
                                                     Discharges  to  Domestic  Water
                                           All
                                                     discharges into a designated domestic water supply
                                                     must be monitored annuallyjor the parameters listed
                                                     below Cm addition to other monitoring requirements).

                                                     If the  concentration  of any sample exceeds the
                                                     Reportable Quantity Action Level listed below (all
                                                     units are mg/L except for the radium limit, which is
                                                     pCi/l),  the permittee must submit the results of the
                                                     sample analysis  to  the  State  within  24 hours.
                                                     Discharges occurring on Indian Nations must submit
                                                     the report to Region 6 at the address specified in the
                                                     list attached  to  these  instructions,  with a  copy
                                                     provided to the Governing Body of the Indian Nation.
                                                          dissolved arsenic:        0.05
                                                          dissolved barium:        1.0
                                                          dissolved cadmium:      0.010
                                                          dissolved chromium:     0.05
                                                          dissolved lead:          0.05
                                                          total mercury:           0.002
                                                          dissolved nitrate:        10.0
                                                          dissolved selenium:      0.05
                                                          dissolved silver.         0.05
                                                          dissolved cyanide:       0.2
                                                          dissolved uranium:       5.0
                                                          radium-226+radium-228: 30.0
                                                     The New Mexico river segments designated for use as
                                                     a domestic water supply can be found in the permit
                                                     and the latest design of Water Quality Standards for
                                                     Interstate and Intrastate Streams in New Mexico.

                                                     4.4J OKLAHOMA

                                                     Whole  Effluent Toxicitv (WET> Test Procedures:
                                                     Results must be  summarized  on Table VI-A  and
                                                     submitted ID EPA with the DMR.  (A copy of Table
                                                     VI-A is attached to these instructions.)
     NPDES Storm Water General Permit DMR Guidance
                                                                                          Page 12

-------
4.4.4  TEXAS

Additional Parameters: For Wood Treatment facilities
that use chromium-arsenic formulations: acute WET.

Whole Effluent  Toxicitv (WED  Teat Procedures:
Results must be summarized  on  Table VI-A and
submitted to EPA with the DMR.  (A copy of Table
VI-A is attached to these instructions.)
Additional Effluent Limitations:  Below are special
effluent limitations for hazardous metals in discharges
to tidal waters and inland waters (all stated in mg/1).
Tidal waters are defined as those waters of the Gulf
of Mexico  within the jurisdiction of the State of
Texas, bays and estuaries thereto, and those portions
of the river systems which are subject to the ebb and
flow of the tides, and to the intrusion of marine
waters.   Inland waters  are  defined  as  all  surface
waters in the State other than "tidal waters" as defined
above.

TOTAL
METAL
Arsenic
Barium
Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Nickel
Selenium
Silver
Zinc
TIDAL WATERS
Monthly
Average
0.1
1.0
0.1
0.3
0.5
0.5
1.0
0.005
1.0
0.1
0.05
1.0
Daily
Composite
0.2
2.0
0.2
1.0
1.0
1.0
2.0
0.005
2.0
0.2
0.1
2.0
Single
Grab
03
4.0
03
5.0
2.0
13
3.0
0.01
3.0
03
02
6.0
INLAND WATERS
Monthly
Average
0.1
1.0
0.05
0.5
0.5
0.5
1.0
0.005
1.0
0.05
0.05
1.0
Daily
Composite
0.2
2.0
0.1
1.0
1.0
1.0
2.0
0.005
2.0
0.1
0.1
10
Single
Grab
03
4.0
02
5.0
2.0
1.5
3.0
0.01
3.0
0.2
0.2
6.0
              All measurements are in mg/l.
     NPDES Storm Water General Permit DMR Guidance
                                     Page 13

-------
Permittee:	
NPDES Permit:.
Dilation Water Used:
                                                  Daphnia puiex Suxvivii
                    . Receiving Stream
                    . Synthetic Water

Composite
Sample
CoUected
Test Initiated
Time


Date


Time
24-hour
Replicate
A
B
C
D
Mean
Percent
0%





100%





50*





Effluent (%)
25%





13*





6%





 1)
 2)
Is the mean survival at 24 noun >50% in the 100% dilution?     Yet	        No
if you report a NO, enter a "1" on the DMR form, Parameter No. TGE3D. Otherwise, enter a "0."
\s there a statistically significant difference in survival at the 100% dilution as compared to the control (0%)?
No	
If you report a YES, enter a "1" on the DMR Form, Parameter No, TEE3D. Otherwise, enter a "0"
Yes.
                                       Fathead Minnow (Pimephales promelas) Survival
 Permittee:	
 NPDES Permit:.
 Outfall(s):	
 Dilution Water Used:
                     , Receiving Stream
                     , Synthetic Water

Composite
Sample
CoUected
Test Initiated
Time


Date


Time
24-hour
Replicate
A
B
C
D
Mean
Percent Effluent (%)
0%





100%





50%





25%





13%





6%





 3)    Is the mean survival at 24 hours >50% in the 100% dilution?     Yes	         No
       If you report a NO, enter a "1" on the DMR form, Parameter No. TGE6C.  Otherwise, enter a "0."
 2)    Is there a statistically significant difference in survival at the 100% dilution as compared to the control (0%)?
       No	
       If you report a YES, enter a Ton the DMR Form, Parameter No. TEE6C.  Otherwise, enter a "0."
                                                                                                       Yes.
         NPDES Storm Water General Permit DMR Guidance
                                                                                                     Page  14

-------
                                TABLE VI-A: LOUISIANA, NEW MEXICO, OKLAHOMA

                                                  Daphnia pule* Survival
Permittee:	
NPDES Permit.
Outfall(s):	
DUution Water Used:
. Receiving Stream
. Synthetic Water

Composite
Sample
Collected
Test Initiated
Time


Date


Time
24-hour
Replicate
A
B
C
D
Mean
Percent Effluent (%)
0%





100%





 1)    Is the mean survival at 24 hours >50% in the 100% dilution?     Yet	        No
      If you report a NO, enter a Ton flu DMRform, Parameter No. TGE3D. Otherwise, enter a *0."
 2)    Is there a statistically significant difference in survival at the 100% dilution as compared to the control (0%)?
      No	
      If you report a YES, enter a T on the DMR Form, Parameter No. TEE3D.  Otherwise, enter a "Q."
                                                                                  Yes.
                                       Fathead Minnow (Pimephales promelas) Survival
 Permittee:	
 NPDES Permit:.
 Outfall(s):	
 Dilution Water Used:
 . Receiving Stream
 . Synthetic Water

Composite
Sample
Collected
Test Initiated
Time


Date


Time
24-hour
Replicate
A
B
C
D
Mean
Percent Effluent (%)
0%





100%*





 3)    Is the mean survival at 24 hours >50% in the 100% dilution?     Yea	        No
       // you report a NO. enter a "1" on the DMR form. Parameter No. TGE6C.  Otherwise, enter a "0."
 2)    Is there a statistically significant difference in arrival at the 100% dilution as compared to toe control (0%)?
       No	
       If you report a YES. enter a T on the DMR Form. Parameter No. TEE6C. Otherwise, enter a "0."
                                                                                  Yes.
         NPDES Storm Water General Permit DMR Guidance
                                                                                Page IS

-------
4J EPA REGION
Whole Effluent Toxidtv ("WE'D Teat Procedures:
Pennioees required to monitor for WET must
follow the Region Vm test procedures as follows:
The permittee must conduct an acute 48-hour static
replacement toxitity test using Ceriodaphnia dubia
and an acute 96-hour static replacement toxicity test
using Pimephales promelas (flathead minnow).  The
static replacement toxicity tests must be conducted
in general accordance with "Methods for Measuring
the Acute Toxicity of Effluents to Freshwater
Marine Organisms" EPA/6(Xy4-90-027 (Revised
September, 1991)  and me "Region VID EPA
NPDES Acute Test Conditions - Static Renewal
Whole Effluent Toxicity Test" Tests must be
conducted semiannually on a grab sample of the
discharge at 100% strength (no dilution).
After four sets of tests of two species, the permittee
may request mat subsequent testing be limited to
the more sensitive of the two species, based on
results of the previous tests. The permit issuing
authority may approve or deny the request based on
results or other information without an additional
public notice.

Results of all toxicity tests must be reported in a
format consistent with the latest revision of "Region
Vin Guidance for Acute Whole  Effluent
Reporting," and Include all chemical and physical
data as specified

NOTE;  These WET test procedures specific to
Region Vm were left out of the general permit
language published in the 9/9/92 Federal Register
(57 FR 41236).  A correction to Region VIll's final
NPDES general permit for storm water discharges
associated with industrial activity will be published
in a future Federal Register.
     NPDES Storm Water General Permit DMR Guidance
                                     Page 16

-------
5.    REGIONAL MAILING  ADDRESSES  AND PHONE NUMBERS
  STATES/APPROPRIATE REGIONAL ADDRESS
                                                         STATES/APPROPRIATE REGIONAL ADDRESS
                         Maine, New Hampshire
                                                         Region II: Puerto Rico1. New Yoik Indian Lands
US.
                    Protection Agency, Region I
Envir
  JFK Federal Po« Office, Box 8127
  Bonn. MA  02114
  (617)365-3525
Protection Agency, Region II
                                                         Water Management Division (2WM-WPC)
                                                         Storm Water Staff
                                                         26 Federal Plaza
                                                         New York, NY  10278
                                                         (212)264-7674
             District of Colombia1, Delaware Federal Facilities
  U.S. Environmental Protection Agency.. Region ffl
  Water Management Division (3WM55)
  Storm Water Staff
  841 Chestnut Building
  Philadelphia, PA 19107
  (213)597-1651
                                                         Retion IV: Florida, Mississippi Indian lands, North Carolina Indian lands
                                                         U.S. Envir
Protection Agency, Region IV
                                                         Water Management Division (WPEB-7)
                                                         Water Permits and Enforcement Branch
                                                         Enforcement Section
                                                         345 Courtland Sireet, N.E.
                                                         Atlanta, OA 30365
                                                         (404)347-3012
  Region VI: Louisiana, New Mexico1 (see Region DC for
  Navajo lands, and Region Vffl for Ute Mm. Reservation
  lands), Oklahoma, Texas

  U.S. Environmental Protection Agency, Region VI
  Water Management Division (6W-EA)
  Storm Water Staff
  First Interstate Bank Tower at Fountain Place
  1445 Ross Avenue. 12th Floor. Suite  1200
  Dallas, TX 75202
  (214)655-7175
                                                          Resdon VHI:  Colorado Indian lands, Colorado Federal Facilities,
                                                          Montana Indian lands2, North Dakota Indian lands, Wyoming Indian
                                                          lands, Utah Indian lands (see Region DC for Goshute Reservation and
                                                          Navajo Reservation lands)

                                                          U.S. Environmental Protection Agency, Region VEQ
                                                          Water Management Division. NPDES Branch (8WM-Q
                                                          Storm Water Staff
                                                          999 18th Street
                                                          Denver, CO 80202-2466
                                                          (303)293-1630
   Region DC:  Arizona, California Indian lands, Nevada Indian
   lands, Guam1, American Samoa, Midway and Wake Islands,
   Johnston Atoll, the Goshute Reservation in UT and NV, the
   Navajo Reservation in UT and NM and AZ, the Duck Valley
   Reservation in NV and ID

   U.S. Environmental Protection Agency, Region DC
   Water Management Division (W-5-3)
   Storm Water Staff
   75 Hawthorne Street
   San Francisco, CA 94105
   (415)744-1906
                                                          Region X:  Alaska1, Idaho (see Region IX for Duck Valley Reservation
                                                          lands), Washington Indian lands, Washington Federal Facilities

                                                          U.S. Environmental Protection Agency, Region X
                                                          Water Management Division (WD-134)
                                                          Storm Water Staff
                                                          1200 Sixth Sireet
                                                          Seattle. WA 98101
                                                          (206)55.3-8399
 1  NOTE:  DMR materials mutt be sent to the Regional address, and a copy must be seat to the following corresponding State address:
       AK: Alaska Department of Environmental Conservation, Northern Regional Office, 1001 Noble SL, Suite 350, Fairbanks, AL 99701. or
           Alaska Department of Environmental Conservation, Southeastern Regional Office, 410 W. WUloughby. Suite 105. Juneau, AL 99801. or
           Alaska Department of Envnonmenul Conservation, Sowhc«ir^                                                    99503, or
           Alaska Department of Environmental Conservation. Pipeline Corridor Regional Office, 411 W. 44 AV&, Suite 2C, Anchorage, AL 99502
       DC: Government of District of Columbia, Dept of Consumer and Regulatory Affairs, Environmental Regulation Administration. 2100 Martin
           Luther King Jr. Ave, S.E. Washington. DC 20020
       GU: Guam Environmental Protection Agency, D-107 Harmon Plaza, 130 Rojas SL, Harmon, GU 95911
       NM: Program Manager, New Mexico Environment Department, Surface Water Qualify Bureau, Surface Water Section, 1190 St. Francis Drive,
           P.O. Box 26110, Santa Fe. NM 87502
       PR: Water Quality Area. Puerto Rico Environmental Quality Board. P.O. Box 11488, Santtrce, PR  00910
           EPA Caribbean Field Office, Office 2A. Podiatry Center Building. 1413 I^mandez Joncos Avenue, Samurce, PR 00907
 2  NOTE: For Montana Indian Lands, please use the following address: U.S. EPA, Region VHI. Montana Operations Office, Federal Office Bu.
           Drawer 10096. 301 South Park, Helena. MT 59620-0026
             NPDES Storm Water General Permit DMR Guidance
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