&EPA
             United States
             Environmental Protection
             Agency
             Office of Water
             Regulations and Standards
             Washington, DC 20460
September 1980
            Water
Nitrogen-Ammonia/
Nitrate/Nitrite

Water Quality Standards
Criteria Summaries
A Compilation
of State/Federal Criteria

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   NITROGEN - AMMONIA/NITRATE/NITRITE
         Water Quality Standards
           Criteria Summaries
 A Compilation of State/Federal Criteria
             September 1980
  U. S. Environmental Protection Agency
Office of Water Regulations and Standards
        Washington, D. C.  20460

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               NATIONAL SUMMARY




                       OF




        STATE WATER QUALITY STANDARDS








           NITRATES/NITRITES/AMMONIA








                 SEPTEMBER, 1980











                 PREPARED FOR




UNITED STATES ENVIRONMENTAL PROTECTION AGENCY




        CRITERIA AND STANDARDS DIVISION




                401 M STREET, S. W.




             WASHINGTON, D.  C. 20460
                  PREPARED BY



       NALESNIK ASSOCIATES INCORPORATED



            505 ELEVENTH STREET, S. E.



             WASHINGTON, D. C. 20003
                                Contract Number   68-01-6058



                                Project Number    WA-80-A055

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INTRODUCTION
This digest is compiled to provide general information to the public as well as to
Federal, State,  and  local  officials.   It  contains  excerpts from the individual
Federal-State water  quality standards establishing pollutant specific  criteria for
interstate surface waters.  The water quality  standards program is implemented by
the  U.  S. Environmental Protection Agency where responsibility for providing
water quality recommendations, approving State-adopted standards for interstate
waters, evaluating adherence to the  standards, and  overseeing enforcement of
standards compliance, has been mandated by Congress.

Standards, a nationwide strategy for surface water quality management, contain
three  major elements:  the  use  (recreation, drinking  water, fish  and  wildlife
propagation,  industrial, or agricultural) to be  made of the navigable water; criteria
to protect these uses; and  an antidegradation statement to protect existing high
quality waters, from degradation by the addition of pollutants.

Water  quality  criteria  (numerical  or  narrative  specifications)  for  physical,
chemical, temperature, and biological constituents are stated in the July 1976 U. S.
Environmental Protection Agency publication Quality Criteria for  Water (QCW),
available  from the Government Printing Office, Washington, D. C.  The 1976 QCW,
commonly referred to as the  "Red  Book,"  is the  most  current compilation of
scientific information used by the  Agency as a basis  for  assessing water quality.
This publication is subject to periodic updating and  revisions  in light of  new
scientific and technical information.

Criteria for  ammonia, nitrate or nitrite nitrogen in State  water quality standards
are the subject of this digest. Ammonia in most waters is a biological degradation
product of nitrogenous organic  matter.   When  dissolved  in water, ammonia  will
react with the  water to  form ammonium ions.   Ammonium can  also be released
from proteinaceous organic matter  and urea,  or synthesized from nitrogen fixation.
Nitrate is formed from the  complete oxidation of ammonium  by certain  micro
organisms in which nitrite is an intermediate product.  In well oxygenated waters
nitrite  is readily oxidized to  nitrate. The rationale for  establishing water quality
criteria for these three common molecular forms of nitrogen are:

      (1)   ammonia  toxicity to aquatic life is well documented  and its
           toxicity is directly dependent on the pH of the water in which it is
           dissolved;

      (2)   growing plants assimilate nitrate  and ammonium  ions into plant
           proteins; and

      (3)   both  nitrate and nitrite nitrogen  are  toxic to  aquatic life  where
           specific concentrations of either are reached in a waterbody.

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To prevent the nuisance and toxic effects of any of the nitrogen forms, the
1976 Quality Criteria for Water recommends the following criteria:

       0.02 mg/1 (as un-ionized ammonia) for freshwater aquatic life.

     Concentrations of total ammonia (NH, + NH^ )  which contain an un-
     ionized ammonia concentration of 0.020 mg/1 wH(mg/l)
Temper-                           pH Value
 ature
  (C)        6.0    6.5   7.0    7.5    8.0   8.5      9.0     9.5     10.0
  0*
 10...
 15...
 20...

 3o!"        25.      7.9   2.5    0.81   0.27  0.099    0.045   0.028   0.022

          10 mg/1 nitrate nitrogen (N) for domestic water supply (health).


Since water quality standards experience revisions  and upgrading from time to
time, following procedures set forth in the Clean Water  Act, individual entries in
this digest may be superseded.  As these revisions are accomplished and allowing
for the States to  revise their standards accordingly, this digest will be updated and
reissued.  Because this publication is not intended for use other than as a general
information resource, to obtain the latest information and for special purposes and
applications, the reader needs to refer to  the  current approved water  quality
standards. These can be obtained from the State  water pollution control agencies
or the EPA or Regional Offices.

Individual State-adopted criteria follow:
160.
110.
73.
50.
35.
51.
34.
23.
16.
11.
16.
11.
7.3
5.1
3.5
5.1
3.4
2.3
1.6
1.1
1.6
1.1
0.75
0.52
0.37
0.53
0.36
0.25
0.18
0.13
0.18
0.13
0.093
0.070
0.055
0.071
0.054
0.043
0.036
0.031
0.036
0.031
0.027
0.025
0.024
                                      11

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                         REFERENCES
     California Water Quality Standards by River Basins, c.a. 1975

     For more detailed  information on selected basins, sub-basins
     and stretches of streams and coastal areas refer to California
     State Water Quality Standards.

B    Delaware Water Quality Standards, March 25, 1979

C    Idaho Water Quality Standards, c.a. September, 1979

     Missouri Water  Quality Standards, c.a. February, 1978
p
     American Samoa Water Quality Standards,
     Revised July, 1973

F    Territory of Guam Water Quality Standards, Sept. 1975

G    Trust Territory of the Pacific Islands  Water Quality
     Standards, October  21, 1973

H    Virgin Islands Water Quality Standards,  Aug. 1973
ENVIRONMENT REPORTER, The Bureau of National Affairs, Inc.
Washington, D. C. 20037

1     Pages 701:0501-0509, February 16, 1979

2     Pages 706:1004-1008, July 20,  1979

3     Pages 711:0542-0544, August 5, 1977

4     Pages 716:0603, March 26, 1976

5     Pages 726:1005, 1011-1013, March 7,  1980

      Basic Water Quality Standards adopted May 22, 1979,
      have not yet been submitted to EPA for formal approval.

6     Pages 731:1002-1009, September 8, 1978

7     Pages 746:1008-1014, October  19, 1979

8     Pages 751:0504-0505, January  25, 1980

9     Pages 765:0512-0515, January  30, 1976

10    Page 761:0503-0504, 1973
                                    iii

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11   Page 766:0504-0509, October 5, 1979


12   Pages 771:0502-0504, September 29, 1978


13   Pages 776:0504-0506, April 10, 1979


14   Pages 781:0501-0502, May 18, 1979


15   Pages 786:0501-0502, August 29, 1975


16   Page 791:0583, May 26, 1978


17   Pages 796:0103-0108, February 16, 1979


18   Pages 801:1001-1002, Sept. 29, 1978


19   Page 806:1003, March 30, 1979


20   Page 811:1043, 1974


21   Pages 816:0602-0607, 0642-0648, 1974

99
     Pages 821:0502-0505, June 30, 1978


23   Pages 831:0501-0510, February 21, 1975

f)A
Z4   Page 836:0502, June 30, 1978


25   Pages 841:0507-0537, December 7, 1979


26   Pages 846:0501-0508, November 17, 1978


27   Pages 851:1001-1023, December 15, 1978


28   Pages 856:1001-1002, July 18, 1978


29   Pages 861:1002-1007, August 11, 1979


30   Pages 866:1004-1009, December 28, 1979


31   Pages 871:0501-0506, November 25, 1977


32   Pages 876:1001-1043, May 26, 1978

09
     Pages 881:1001-1007, September 21, 1979


34   Pages 886:0513-0524, August 29, 1975

oe
     Pages 891:1001-1129, November 16, 1979
                                        IV

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36   Pages 901:0501-0505, November 3, 1978
07
     Pages 906:0501-0506, October 13, 1978
OQ
     Pages 911:0501-0507, June 22, 1979
39   Pages 916:0541-0544, April 14, 1978
4(1
     Pages 921:1001-1003, August 13,  1976
41   Pages 926:0541-0563, January 26, 1979
49
     Pages 931:0501-0508, May 26, 1978
43   Pages 936:1001-1003, June 27, 1975
44
     Pages 941:1001-1005, May 26, 1978
45   Pages 946:0501-0520, July 14, 1978
46
     Pages 951:1002-1003, April 28, 1978
47   Pages 956:1001-1007, January 11, 1980
48   Page 741:1002, November 23, 1979
4Q
     Pages 896:0301-0310, March  31, 1978

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                            NITRATES/NITRITES/AMMONIA
State

Alabama


Alaska


Arizona**
Criteria Values in mg/1

Not specified


Not specified
A. The mean annual total nitrate concen-
trations of the following waters shall not
exceed the  values  given below nor  shall
the total  nitrate concentrations of  more
than  10  percent of the samples  in any
year exceed the 90  percent values given
below.  Unless otherwise specified,  indi-
cated values also  apply  to tributaries to
the named waters.

Total nitrates as NO3 mg/1

4 Mean annual
7 90 pet-value
                   5 Mean annual
                   5 Mean annual
                   7 90 pet-value
                   5 Mean annual
                   7 90 pet-value


                   B.  The  above standards  are  intended to
                   protect the beneficial uses of the named
                   waters.   Because regulation  of nitrates
                   and phosphates alone may  not be adequate
                   to protect waters from eutrophication, no
                   substance shall be added  to  any surface
                   water  which produces aquatic growth to
                   the extent that  such growths  create  a
                   public nuisance or interference with bene-
                   ficial uses of the  water defined and desig-
                   nated in  Reg. 6-2-6.5.
Designated Stream Use

All


All
Colorado  River  from Utah
border  to  Willow  Beach
(main stem)

Colorado    River    from
Willow  Beach  to   Parker
Dam (main stem)

Colorado    River    from
Parker  Dam  to  Imperial
Dam (main stem)

Colorado    River    from
Imperial  Dam to  Morelos
Dam (main stem)
                                     -1-

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State
Arkansas
Criteria Values in mg/1

Not specified

Nutrients - The naturally occurring nitro-
gen/phosphorus ratio shall not be signifi-
cantly altered due  to municipal,  indus-
trial, agricultural  or  other  waste  dis-
charges,  nor shall total phosphorus exceed
100 ugA in streams or 50 ug/1 in lakes and
reservoirs due to any such discharges.
Designated Stream Use

All
Calif orniaA
Colorado'
Nitrates + total nitrites
10

100
Ammonia - not specified

Un-ionized ammonia - some basins

Note:      See   California  State   Water
Standards  for specific rivers, basins and
coastal waters.

Ammonia (as N)
0.02 (un-ionized)
0.06 (un-ionized)
0.5

Nitrate (as N)
1001
10

Nitrite (as N)
0.05
0.5
10l
1.0

  In order to provide  a reasonable margin
of safety  to  allow for unusual situations
such as extremely high water ingestion or
nitrite formation in  slurries, the NO,-N
plus NO2~N content in drinking waters Tor
livestock and poultry should be limited to
100  ppm  or  less, and the NO^-N content
alone be limited to 10 ppm or less.
                                                                 All

                                                                 Livestock watering
                                                                 (Basin 3)

                                                                 All
                                                                 Cold water biota
                                                                 Warm water biota
                                                                 Domestic water supply
                                                                 Agriculture
                                                                 Domestic water supply
                                                                 Cold water biota
                                                                 Warm water  biota
                                                                 Agriculture
                                                                 Domestic water supply
                                       -2-

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State

Connecticut


         D
Delaware
Criteria Values in mg/1

Not specified


Ammonia - N   0.4

Total nitrogen  3.0
Designated Stream Use

All


Public water supply

Public water supply
Florida7
Nitrate -  10.0 as N or that concentration
determined in Nutrients below

Nitrite - Not specified

Ammonia  (un-ionized) 0.02
                   Nutrients - In no case shall nutrient con-
                   centrations of a body of water be altered
                   so  as  to cause an  imbalance in natural
                   populations of aquatic flora and fauna.
Public water supply
All

Public water supply,  shell-
fish, recreation

Public water supply,  shell-
fish, recreation
       Q
Georgia
Not specified
      Q
Hawaii
Idaho10
Total nitrogen, not greater than
0.10 mg/1

Total nitrogen, not greater than
0.15 mg/1

Total nitrogen, not greater than
0.20 mg/1
Not specified
Class AA


Class A


Class B



All
Illinois11
Ammonia (as N) 1.5 mg/
                    Ammonia  Nitrogen  as  N.  (Storet  No.
                    00610).  No  effluent  from  any  source
                    which discharges to the Illinois River, The
                    DesPlaines River  downstream of its con-
                    fluence  with the  Chicago  River System,
                    or the Calumet River System, and whose
                    untreated  waste  load  is 50,000 or  more
                    population equivalents shall contain more
                    than 2.5 mg/1 of ammonia nitrogen as N -
All     waters      except
secondary   contact   and
indigenous aquatic  life and
Lake Michigan

Secondary  contact   and
indigenous   aquatic   life
waters
                                      -3-

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State
Criteria Values in mg/1
Designated Stream Use
Illinois
  (con't)
Indiana ^
during  the  months   of   April  through
October, or 4 mg/1 at other times,  after
December  31, 1977.  Sources discharging
to any  of  the above  waters and  whose
untreated waste load cannot be computed
on a population  equivalent basis compar-
able to  that  used for municipal  waste
treatment plants and whose ammonia nit-
rogen discharge exceeds  100 pounds per
day shall not discharge an  efffluent of
more  than  3.0 mg/1 of ammonia nitrogen
after December  31, 1974.

0.02 mg/1

10.0 mg/1 Nitrate-Nitrogen


1.0 mg/1 Nitrite-Nitrogen
                   The  bioassay  criterion  for  toxic sub-
                   stances of 1/10 x 96 hr  TLM  applies to
                   ammonia in all waters except those listed
                   in the specific standards as follows:

                   Unionized Ammonia
                   0.03 mg/1 - Monthly Ave.
                   0.1  mg/1 - Daily Max.

                   0.02 mg/1 Monthly Ave.
                   0.05 mg/1 - Daily  Max.

                   1.5  mg/1 total Ammonia Nitrogen
                   0.02 mg/1 Unionized Ammonia
                                                                All Lake Michigan Waters

                                                                Public and Food Processing
                                                                water supply

                                                                Public and Food Processing
                                                                water supply
                                            Inner Harbor, Gary Harbor,
                                            Burns Harbor

                                            Lake Michigan
                                            Grand Calumet River  and
                                            Indiana Harbor Ship Canal

                                            Wolf  Lake and Wolf Lake
                                            Harbor
                   Ammonia
                   Toxic Substances:  The concentration of
                   toxic  substances shall not exceed those
                   values listed in the United States Environ-
                   mental Protection Agency Administrator's
                   Quality  Criteria  for Water 1976 for the
                   protection of sensitive aquatic life.
                   (For  Ammonia  this  value is 0.02  mg/1
                   NH3)

                   Toxic Substances:   Not to exceed  one-
                   tenth  of the  96-hour median tolerance
                   limit  of salmonid fishes  or  the natural
                                            Natural    Spawning    and
                                            Rearing    or   Imprinting
                                            Areas for Salmonid Fishes
                                            Migration    Routes
                                            Salmonid Fishes
                      for
                                     -4-

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State
Criteria Values in mg/1
Designated Stream Use
Indiana
  (con't)
 Iowa
     13
biota obtained from continuous flow bio-
assays where the dilution water and toxi-
cant  are  continuously  renewed,  except
that other lower application factors may
be used in specific cases when justified on
the basis of available evidence.

Nitrates and Nitrites:
Plant  Nutrients:  Free  from  substances
attributable to municipal, industrial, agri-
cultural  or other  sources  in  concen-
trations or combinations which  will cause
or  contribute  to  the growth  of aquatic
plants or algae in such degree as to create
a nuisance, be unsightly or  deleterious, or
be  harmful to salmonid   fishes   or  the
natural biota.  (Stream  Pollution Control
Board of the State of Indiana;  SPC  12R,
Sec.B;  filed May  26, 1978, 3:30 PM 1 IR
100)

Plant  Nutrients:   Free from  substances
attributable to municipal, industrial, agri-
cultural  or  other sources  in  concen-
trations or combinations which will cause
or  contribute  to  the growth of  aquatic
plants or algae in such degree as to create
a nuisance, be unsightly or deleterious, or
be   harmful to  salmonid  fishes  or   the
natural biota.

Ammonia (N)
5 (Nov 1 - March 31)
2 (April 1  - Oct. 31)
                    2.5 (Nov.l - March 31)
                    1.0 (April 1 - Oct. 31)
                    Nitrate (NO^) 45

                    Nitrite - Not specified
                                                                 Natural   Spawning   and
                                                                 Rearing   or    Imprinting
                                                                 Areas for Salmonid Fishes
                                                                 Migration    Routes
                                                                 Salmonid Fishes
                        for
 Warm water fish and aqua-
 tic  life, secondary recrea-
 tion

 Cold water  fish and aqua-
 tic  life, secondary recrea-
 tion.

 Public water supply

 All
 Kansas
        14
 Ammonia:  Man-made sources  shall  not
 cause the undissociated ammonium hydro-
 xide concentration of waters of the state
 to exceed 0.15 mg/1 as N.
                                                                  All
                                       -5-

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State

Kansas
  (con't)

Kentucky
15
Louisiana
         16
      17
Maine1
Maryland
         18
Massachusetts
              19
Criteria Values in mg/1

Nitrites - Not specified


Ammonia 0.05


Not specified

Nutrients - the naturally occurring nitro-
gen phosphorous ratio shall be maintained.


Not specified


Not specified

The  state recognizes that certain waters
of  the  State   are   eutrophic  or  are
approaching eutrophic conditions. All dis-
charges to waters which are eutrophic  or
potentially eutrophic, when so identified
by the State, shall be treated as necessary
to reduce  eutrophic  effects.   The State
shall require that wastewaters, containing
nutrients which cause or may cause eutro-
phication be given advanced waste  treat-
ment prior to discharge, or be disposed  of
by spray  irrigation on land,  or by other
practicable procedures  which  will avoid
direct discharge to surface waters.


Nitrate: 10

The   discharge   of  nutrients, primarily
phosphorus or nitrogen,  to  waters of the
Commonwealth  will be  limited or prohi-
bited  by the  Division  as necessary  to
prevent excessive eutrophication of such
waters.    There  shall  be  no  new   or
increased  discharges  of  nutrients   into
lakes and  ponds, or  tributaries  thereto.
Existing discharges containing  nutrients
which encourage eutrophication or growth
of weeds or algae shall be treated.  Acti-
vities which  may result in  non-point  dis-
charges of nutrients shall be conducted  in
Designated Stream Use

All


All


All
                                                        All


                                                        All
                                                        Public water supply
                                      -6-

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State
Criteria Values in mg/1
Designated Stream Use
Massachusetts
  (con't)
accordance  with  the best  management
practices  reasonably determined by  the
Division  to  be necessary  to  preclude or
minimize such discharges of nutrients.
Michigan
        20
Not specified

Nutrients  originating   from   domestic,
industrial,  municipal or domestic  animal
sources  shall  be  limited  to the  extent
necessary  to   prevent  stimulation   of
growths  of aquatic  rooted,  attached  and
floating  plants, fungi  or bacteria  which
are or may become injurious to  the desig-
nated uses  of the waters of the state.

(1) Toxicity of undefined toxic substances
not  specifically  included in  subrules  (2)
 i'id  (3) shall  be determined by develop-
ment of 96-hour  TLM's or  other  appro-
priate  effect  and   points  obtained  by
continuous flow or in situ bioassays using
suitable  test  organisms.   Concentrations
of  undefined  toxic substances  in  the
waters of  the State  shall not exceed safe
concentrations as determined by applying
an application factor, based  on  knowledge
of the  behavior of  the toxic substances
and  the  organisms to be protected in the
environment,  to the  TLM or other appro-
priate effect end point.

(2) For all waters of the State, unless on
the  basis  of recent  information, a more
restrictive  limitation   is   required  to
protect  a  designated use, concentrations
of  defined  toxic substances,  including
heavy  metals,   shall   be   limited   by
application  of  the   toxic  substances,
recommendations    contained   in   the
chapter    on    Freshwater    Organisms,
"Report    of   the   National   Technical
Advisory Committee to the Secretary of
the   Interior,   Water  Quality  Criteria,
1968,"  or  by  application  of  any toxic
effluent standard,  limitation  or   prohi-
bition promulgated  by  the  Administrator
of   the   United  States  Environmental
Protection Agency   pursuant  to section
307(a) of  the  United  States Public Law
92-500, whichever is  more restrictive.
All

All
                                      -7-

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State
Criteria Values in mg/1
Designated Stream Use
Michigan
  (con't)
(3) In addition to the standards prescribed
in subrules (1) and (2), waters of the State
used for public  water supply shall, at the
point of  water  intake,  not  exceed  the
permissible   inorganic   and    organic
chemicals  criteria for raw  public  water
supply   in   "Report  of  the   National
Technical  Advisory  Committee  to  the
Secretary  of the Interior, Water Quality
Criteria,   1968,"  except  that   chlorides
shall be limited to  the  same  extent as
prescribed by rule 1051(2).
Minnesota
          21
Nitrates (NOj) 45.0
                    0.2 Ammonia (N)
                    1.0
                    1.5
                    Unspecified toxic substances  - none  at
                    levels hamful either directly or indirectly.
Domestic water supply
Classes A, B, and C

Fisheries and recreation
(Class A)

Fisheries and recreation
(Class B)

Fisheries and recreation
(Class C)

Agriculture and wildlife
(Class B)
           22
 Mississippi
 Not specified
 All
Missouri
 0.1 Ammonia nitrogen
 0.02

 10.0 Nitrate nitrogen
 Aquatic life
 Coldwater fishery

 Drinking water supply
 Montana
         23
 Not specified
 All
 Nebraska
         24
 Ammonia  as N- Seasonal limits  assigned
 to  each designated stream segment with
 limits ranging from 1 to 6 mg/L.
 All
 Nevada25
 Nitrates (NOJ
 0.8 - 7.66 Single Value

 .07-5.0 Annual average
                                                                  Variable

                                                                  Variable
                                       -8-

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State
Criteria Values in mg/1
Designated Stream Use
Nevada
  (con't)
Nitrates (NOJ
1.0 - 5.0 Single  Value

.09 - 1.5 Annual Average

Single value and annual average varies for
each basin.  See  Water Pollution Rules,
Table 1 thru 55 for specific rivers, lakes,
and streams.
               26
New Hampshire     Not specified
New Jersey
           27
Ammonia   or   ammonium   compounds:
None, either alone or in combination with
other substances,  in such concentrations
as to affect humans or be detrimental to
the   natural  aquatic   biota,  produce
undesirable  aquatic  life,  or  which  would
render the waters unsuitable for the desi-
gnated  uses.   Where sources  of   public
water supply is potential use, none  which
would cause standards for drinking  water
to   be   exceeded    after   appropriate
treatment.

Nitrate Nitrogen 2.0
                    3.0
Variable

Variable
All


All
All uses in FW-central Pine
Barrens

All   uses   in   FW-lower
Mullica and  Wading Rivers
Central Pine Barrens.
New Mexico
            28
Not specified

Surface  waters shall be free of nitrogen
and other dissolved gasses at levels above
110% saturation when supersaturation  is
attributable  to  municipal,  industrial or
other discharges.
 All
 New York
          29
 Nitrates: Not specified

 Nitrites: Not specified

 Ammonia or ammonium compounds:  2.0
 as NH3 at pH of 8.0 or above
 All

 All

 Water  supply  source  for
 drinking,  culinary  or food
 processing; fish life
                                      -9-

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State
North Carolina
              30
Criteria Values in mg/1

10.0 Nitrate nitrogen
Designated Stream Use

Drinking   water    supply
(treatment   plus   disin-
fection)
North Dakota
             31
Ohio32
Nitrates: 1.0 - 1.5 (depending upon type of
drinking water treatment process utilized)

NO3 as N: 0.375 (goal)


Ammonia: 0.1 - 13.0 depending upon tem-
perature and pH

The  concentration of un-ionized ammonia
(NH3)  shall  not  exceed  0.05  mgA,  un-
ionized ammonia shall be determined  for
values for total ammonia  N,  pH and tem-
perature and the following equation:
Un-ionized ammonia = l.^itotal ammo-
nia-N)/ 1 + 10  tp a  "  pti; where pk =
0.0902 + 2730/273.2 +  T)  and T =  Tempe-
rature in degrees C

Nitrate-N plus Nitrite-N: 10.0

Nitrite-N: 1.0

Nitrate-N: 10.0

Nitrates plus nitrites: 100.0

Ammonia as Nitrogen
0.2 - 13.0 mg/1 depending on temperature
and pH

0.1 - 6.5 mg/1 depending on temperature
and pH
                    1.5 - 12.8 mg/1 depending on temperature
                    and pH

                    0.2 - 13.0 mg/1 depending on temperature
                    and pH  except as indicated for specific
                    streams

                    Nitrate - N; 10.0 mg/1
                    Nitrates plus nitrites: 100.0 mg/1
                                                                All
                                                                All lake uses
All except Ohio River uses
                                                                All Ohio River uses
                                                                All Ohio River uses

                                                                All Ohio River uses

                                                                Public water supply

                                                                Agricultural water supply

                                                                Warm water habitat
                                                                Lake   Erie,   exceptional
                                                                warm water and cold water
                                                                habitat
                                             Seasonal
                                             habitat

                                             limited
                                             habitat
            warm    water
           warm
water
                                             Lake Erie and public water
                                             supply

                                             Lake Erie and agricultural
                                             water supply
                                      -10-

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State

Ohio
  (con't)
Criteria Values in mg/1

Ammonia not greater than 12.0 mg/1 from
12/1/74 to 6/30/76;  nor greater  than 8.0
mg/1 from 7/1/76 to  1/1/79

Toxic substances less than 1/10 x 96  hr
TLM
(Applies to Ammonia)
Designated Stream Use

Lower Cuyahoga River



Mahoning River
Oklahoma
         33
Nitrates as N: 10.0
Drinking water supply
Oregon
       34
Not specified
All
            35
Pennsylvania
Nitrite plus Nitrate:
10.0 (as nitrogen)

Ammonia nitrogen:
0.5 - 1.5

Note:  See  Drainage  lists A through E of
Pennsylvania Water Quality Standards for
applicable uses and streams
All
Rhode Island
            36
              0<7
South Carolina
Not specified

Chemical  constituents  narrative:   bio-
assays shall be performed as required-

Chemical  constituents  narrative:   the
limit  prescribed  by the USEPA  will be
used where not superseded by more strin-
gent state requirements.

Not specified
All

Fisheries (fresh water)
                                                                Public    drinking    water
                                                                supplies (fresh water)
All
South Dakota
            38
10.0 Nitrates
50.0

0.02 un-ionized Ammonia (as N)
                   0.04 un-ionized ammonia (as N)
                   0.05
Domestic water supply
Wildlife propagation

Domestic  water   supply,
cold water fish

Warm  water  fish (perma-
nent and semi-permanent)

Warm water fish (marginal)
                                     -11-

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State

South Dakota
  (con't)
Tennessee
         39
Criteria Values in mg/1

Nitrites: Not specified


Not specified
Designated Stream Use

All


All
Texas
     40
Not specified
                                                                All
Utah
     41
NH, as N  0.02 (un-ionized)

NO3 as N  0.02
Aquatic life

Aquatic   life,  recreation
and aesthetics
Vermont
        42
There  shall be no discharge of wastes to
Class  A  waters  that  do  not  meet  or
exceed the technical and other require-
ments for such  waters  nor  shall there be
any  discharge of wastes containing  any
form of nutrients which would encourage
eutrophication  or  growth  of  weeds  or
algae.

There  shall be  no new or  increased dis-
charge of  wastes after  May  27,  1971
containing any  form  of nutrients  which
would encourage eutrophication or growth
of weeds and algae in any lake, pond or
reservoir.     Any  discharge  of  wastes
existing prior to May 27, 1971  containing
soluble or  other nutrients  which  would
encourage  eutrophication  or  growth  of
weeds  and  algae in any  lake, pond,  or
reservoir  shall  receive   the  highest
practical degree of  treatment  currently
available to remove such nutrients.
                                                                 All
 Virginia
           44
 Washington
 West Virginia45
 Nitrates plus nitrites: 10.0 (as N)
 Not specified
 45.0  Nitrates
 Public water supply


 All


 All
 Wisconsin
          46
 NH, - N

 3.0 mg/1 during warm temperature
 6.0 mg/1 during cold temperatures
                                                                 Intermediate  aquatic  life
                                                                 waters
                                      -12-

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  State
          47
  Wyoming
  American Samoa
Criteria Values in mg/1

0.02 Ammonia as (N)


The  naturally  occurring  atomic ratio of
NO,-N to PO.-P in a body of water  will
be  maintained.  Similarly,  the ratio of
inorganic  phosphorus (orthophosphate) to
total phosphorus (the  sum  of inorganic
phosphorus, dissolved organic phosphorus,
and particulate (phosphorus)  will be main-
tained in  the ratio and amount  as  it
occurs in the receiving waters naturally.
Designated Stream Use

All cold water fisheries


All
  District of
    Columbia
Ammonia  -  0.02   mg/1  as  unionized
ammonia

Nitrates/Nitrites  -  10  mg/1  max.  as
nitrate (N)
All waters
                                                                   Domestic water supply
  Guam
  Puerto Rico
             49
Total nitrogen shall not exceed
0.40 mg/1

Total nitrogen shall not exceed
0.75 mg/1

Total nitrogen shall not exceed
1.5 mg/1
 10.0 N: rate plus Nitrite (as N)

 5.0 Nitrogen (NO2, NO3, NH3
                  G
  Trust Territories    0.01 Ammonia (N)
  Virgin Islands
               H
                      The  naturally  occurring  ratio  of  the
                      concentrations of  nitrogen to phosphorus
                      will be maintained in all waters.
 Not specified
AA


A, 2b-I, 2b-II, C


2a-I, 2a-II



All surface waters

All coastal waters


Drinking water supply

All
 All
                                        -13-
U.S. GOVERNMENT PRINTING OFFICE: 1980- 341-O82/107

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