vxEPA
             United States
             Environmental Protection
             Agency
             Office of Water
             Regulations and Standards
             Washington, DC 20460
EPA 440/5-88-041
September 1988
State Water Quality
Standards Summary:
District of  Columbia

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                            DISCLAIMER

      TT c  Publication was prepared by  Battelle under contract  to
      u.&. Environmental Protection Agency (Contract  68-03-3534)
    ?£?ar2 information sources were used  to compile data presented
    this document.  Each State was given  an opportunity to  review
 and Provide comments on a draft of this  information document.  ?n
 no  event  shall either the United States or   Battelle  have  any
 ^!P°?^bl11^ °r liabilitv for ^y use,  misuse,  or reliance upon
 the  information  contained herein, nor  does   either  warrant  or
 otherwise represent in any way the accuracy,  adequacy   efficacv
 or applicability of the contents hereof.         S^y,  etiicacy,

      The  reader should consult the water quality standards of  a
 particular State for exact regulatory  language applicable to that
 state.    Copies of State water quality standards  may be  obtained
 from   the  State's  Water  Pollution  Control Agency   or   its
 equivalent.                                            *   •     its

      Additional information may also be  obtained  from the:

                         Standards Branch
             Criteria and Standards Division (WH-585)
             Office of Water Regulations  and Standards
               U.S.  Environmental Protection Agency
                      Washington,  D.C.   20460
                           202-475-7315
     This document may be obtained only from the National Technical
Information Service (NTIS) at the following address:

                National Technical Information Service
                       5285 Front Royal Road
                    Springfield, Virginia 22161
                         703-487-4650       •   .

     The NTIS order number is:  PB89-141733	•

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                                         DISTRICT  OF  COLUMBIA
    Responsible  Agency:
     Department of Consumer and Regulatory Affairs
     Envoronmentil Control Division
     Hater Hygiene Branch
     5010 Overlook Avenue, S.H.
     Washington           20032
     202-767-7370
  Standards   Available
   Hr. Jaies Collier,  Chief
   Hater  Hygiene Branch
   Jept.  of Consumer and Regulatory Affairs
   5010 Overlook Avenue, S.N.
   Washington           20032
   202-767-7370  Fee:          Hailing List:
                                        From;
                                                          State  Contact:
                                                           «r. Jaies     Collier
                                                           Chief
                                                           Hater Hygiene Branch
                                                           Jept.  of Consumer and Regulatory Affairs
                                                           5010  Overlook Avenue, S.H.
                                                           Hashington           20032       202-767-7370
                                                           State   Contacts
                                             no
                                             r                           ad a t i on
   quality  achievable above the standards  y  es  n    „   '   anJ- f '? "^  °r rest°red to the "ighest
   discharges of witmtir, treated  or otherSe are Lhib f H    9'f f*1™ Se9i8nt'   Ne" "oint sour«
   date  of  designation.  Increases  in l^™^^?." ******* 5e"ents after the effective
   prohibit* in antidegradation  segments.  Non-point sou  essflr.L    J'"^9 P°int  50Ur" dischar9es ar*
   shall be controlled in conjunction «ith  Sectio   200 3  D  t  ! p f    ,' dlSChar9BS a"d  C0ibined  se«er "verfloNs
   management practices and regulatory progra.1 ^   Const^ L L  1  T    ' l^ ^^  "P^^tation of best
   aUon in  the  waters of a designated segmen   hic        ^to n n^S"   ?? """^ brid9es  and  bank
   buij to  insure that there are not long  term ad erse «    ua    IfT J    I" C°nSidered °n a  «"
   bnifio.1 uses of the segment.  Short term «1eT ua                     "" iiPiir'ent °f  the
13
                    punts
                                                                      *« *
                                                                                   or
iS
 fl.  Settle to form objectionable deposits-
 0.  Float as debris, scum,  oil or other matter to form  nuisances-
  .   roduce objectionable odor, color,  taste or turSi!        '
                     t0 "  ^        PhySi°109iCal
           ,                                                        -Ponses in humans,  plants or
 -   Produce undesirable aquatic life  or result in  the dominance  of nuisance species.

                                                                        «7, -ay lo, flo- ,ich has a
                                            DC-l

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                                       DISTRICT  OF  COLUMBIA
present nearby aquatic conunity or present or future water uses.  The  following factors shall be used  in
establishing lixing zones:
(a)  Permissible size of the zone shall be dependent on an acceptable atount of iipact and the size of  the
receiving water body;
(b)  Mixing zones shall be free froi discharged substances that will settle to for§ objectionable deposits;
float to fon unsightly lasses; or produce objectionable color, odor, or turbidity;
(c)  fiixing zones shall protect aquatic life in shallow areas which serve as nursery areas;
(d)  A lixing zone, or two (2) or lore iixing zones, shall not font a barrier  to ligratory aquatic life;
(e)  As a guideline, the quality for life within a tixing zone shall be such that the acute toxicity for biota
significant to the area's aquatic life coiiunity is not exceeded;
(f)  The positioning of lixing zones shall be done in a §anner that provides  the greatest protection to
aquatic life and for the various uses  of the water; and,
(g)  Hithin the estuary, the iaxiaal dimension of the iixing area shall not exceed ten percent (10Z) of  the
numerical value of the crass-sectional area of the waterway and shall not  occupy tore than one third (1/3)  of
the width of the waterway.
                                               DC-2

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                                        DISTRICT  OF  COLUMBIA



Classifications:

 Class A                       Waters 5ha11 be protected for pritary contact recreation.


 Class B                       Haters sha11 be Protected for secondary contact recreation  and  aesthetic
                               enjoyient.
 Class C
 Class  D
Haters sahll be protected for aquatic life, waterfowl, shore birds and water
oriented wildlife.


Haters shall be protected for use as a raw water source for public water supply.
 Class  E                        "aters  sha11  be  Protected  for use as a  raw water source for industrial water
                               supply.


 CIass  F                        liters  shall  be  protected  for navigational use.


 class  6                        Sroundwaters  are protected for tultiple uses.
                                               DC-3

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DISTRICT  OF  COLUMBIA


Physical
PH
Upper Value
Lexer Value
Dissolved Oxygen
Lexer Value
Temperature
Upper Value
Temperature Change
Upper Value
Nutrients
Toxic Metals
Arsenic
Upper Value
Cadiiui
Upper Value
Chnmiui - Hexavalent
Upper Value
Cyanide
Upper Value
Iron
Upper Value
Lead
Upper Value
Mercury
Upper Value
Zinc
Upper Value
Beryl liui
Upper Value
Nickel
Upper Value
Seleniui
Upper Value
Silver
Upper Value
Pesticides
flldrin
Upper Value
Dieldrin
Upper Value
Chlardane
Upper Value
DOT 4 Metabolites
Upper Value
Endosulfan
Upper Value
flll Class A Class B Class C
Classes


8.5 8.5 8.5
6.0 6.0 6.0

4.0 ig/L
32.2 C 32.2 C
2.8 C 2.8 C



0.09 ig/L
funct. ug/L
0.01 ig/L
0.003 ig/L
• 1.0 ig/L
funct. ug/L
Narr.

0.05 ng/L
150 ug/L
100 ug/L
0.04 ig/L
1.0 ug/L


0.4 ug/L
0.0019 ug/L
* 0.0043 ug/L
0.001 ug/L
0.01 ug/L
    DC-4

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                                                 DISTRICT  OF  COLUMBIA
     Endrin
          Upper Value
     Neptachlor
          Upper Value
     Toxaphene
          Upper Value

 Qrganics
     Phenol
          Upper Value
     Phenols - Total  Chlorinated!
          Upper Value
     2,4-Dichlorophenol
          Upper Value
     Pentachlorophenol
          Upper Value
     Nitrophenols
          Upper Value
     2-Chlorophenol
          Upper Value
     2,4-Diwthylphenol
          Upper Value
     Phthalate Esters
          Upper Value
    PCBs
         Upper Value

Bacteria
    Fecal Colifort
         Upper Value
                                          All
                                          Classes
Class A
Class B
                                      Class  C


                                      0.0023 ug/L

                                      0.0038 ug/L

                                      0.01   ug/L



                                     0.1    ig/L

                                     3.0    ug/L

                                     200.0  ug/L

                                     7.0    ug/L

                                     20.0   ug/L

                                     100    ug/L

                                     200.0  ug/L

                                     100.0  ug/L

                                     0.01    ug/L
                                                            Narr.
                 Narr.
                                                          DC-5

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Physical
pH
Upper Value
Lexer Value
Kutrients
Toxic Metals
Arsenic
Upper Value
Cadiiui
Upper Value
Chroiiui - Total
Upper Value
Copper
Upper Value
Cyanide
Upper Value
Mercury
Upper Value
Zinc
Upper Value
Bariui
Upper Value
Beryl liui
Upper Value
Nickel
Upper Value
Seleniui
Upper Value
Silver
Upper Value
Pesticides
Aldrin
Upper Value
Dieldrin
Upper Value
Chlordane
Upper Value
DDT t Metabolites
Upper Value
Endosulfan
Upper Value
Endrin
Upper Value
Heptachlor
Upper Value
Toxaphene
Upper Value
t
DISTRICT OF COLUMBIA



8.5 8.5
6.0 6.0



Narr.

0.01 tg/L '

0.05 ig/L

1.0 ig/L

0.2 ig/L

0.0001 ig/L

5.0 ig/L
^^
1.0 ig/L AB
^m
0.0004 ug/L

13.0 ug/L

0,01 tg/L

50.0 ug/L


• .00007 ug/L

.00007 ug/L

* 0.0005 ug/L

0.00 ug/L

75.0 ug/L

1.0 ug/L

0.0003 ug/L
^j^
0.0007 ug/L .*•
Drganics




                                                  DC-6

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                                                 DISTRICT   OF  COLUMBIA
     Phenol
          Upper Value
     Chlorinated Phenols!
          Upper Value
     2,4-Dichlorophenol
          Upper Value
     Pentachlorophenol
          Upper Value
     Nitrophenols
          Upper Value
     2-Chlorophenol
          Upper  Value
     2,4-Diiethyl Phenol
          Upper  Value
     PCBs
         Upper Value

Bacteria
    Fecal Colifori
         Upper Value
 Class D


 0.3    ag/L

 0.04   ug/L

 0.3    ug/L

 30.0   ug/L

 13.0   ug/L

 0.1    ug/L

 400.0   ug/L

 .00008 ug/L



Narr.
                                                             Class E
                                                                               Class F
Class 6
                                                            Narr.
                                                         DC-7

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