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WATER QUALITY STANDARDS CRITERIA DIGEST
 A COMPILATION OF FEDERAL/STATE CRITERIA ON
            -BACTERIA-
i,«
                i
   ENVIRONMENTAL PROTECTION  AGENCY
            WASHINGTON, D.C.

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                                INraBDUCTION


     This digest was compiled in order 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 bacteria
criteria for interstate waters.  The water quality standards program is directed
by the Environmental Protection Agency, an independent regulatory agency which
has responsibility for approving State-adopted standards for interstate waters,
evaluating adherence to the standards, and overseeing enforcement of standards
compliance.

     Standards, the first nationwide strategy for water quality management,
contain four major elements:  the use (recreation, drinking water, fish and
wildlife propagation, industrial, or agricultural) to be made of the interstate
water; criteria to protect those uses; implementation plans (for needed in-
dustrial-municipal waste treatment improvements, among others) and enforcement
plans; and an antidegradation statement to protect existing high quality waters.

     Minimum water quality criteria, or numerical specifications of physical,
chemical, temperature, and biological levels, are stated in the National Technical
Advisory Committee report to the Secretary of the Interior, Water Quality Criteria,
dated April 1, 1968, and published by the Government Printing Office, Washington,
B.C.  Unavailability of the NTAC report before June 30, 1967--the date set by the
Water Quality Act of 1965 for formal adoption of State standards--resulted in
significant variations between the state-adopted and the NTAC minimum criteria.
Some standards were adopted and approved before the NTAC report became available.
Also, the Water Quality Criteria report is subj ect to updating in light of new
scientific and technical information.

     Although some bacteria, the pathogens,-are injurious to human life and
welfare, the majority, the saprophytes, when naturally occurring are beneficial.
Certainly, as the foundation of the food chain, bacteria are essential to life.
Bacteria act as anti-pollutant agents, and the dissolution of organic matter is
the prime role of bacteria in stream self-purification.  Because of this function,
certain types of bacteria are the workhorse of biological sewage treatment plants.

     Bacteria are grouped into aerobic and anaerobic classes.  Aerobic bacteria
thrive in the presence of 02 (free oxygen); anaerobic bacteria thrive in the
absence of free oxygen.  Pollution can cause a superabundance of the saprophyte
population.  Nutrients such as organic matter (sewage, improperly stabilized wood
pulp) and ofcher oxygen-demanding wastes, toxic or other chemical^ and phosphorus,
among other pollutants, can promote nuisance growths and undesirable conditions
for aquatic life and recreational and aesthetic water uses.  They can consume
the free oxygen and create favorable conditions for the growth of anaerobic bacteria.
Anaerobic bacteria are a major factor in lake "deaths."

     Fecal coliform bacteria are used as an indicator of the possible presence
of pathogens in water.  The Water Quality Criteria report gives permissible eoliform
levels of 10,000/100 ml.(milliliters) and fecal eoliform levels of 2,000/100 ml.
Desirable criteria levels are given as 100/100 ml. for eoliform groups and 20/100 ml.
for fecal eoliform groups.  It states that these "microbiological limits are monthly
arithmetic averages based upon an adequate number of samples.  Total eoliform limit
may be relaxed if fecal eoliform concentration does not exceed the specified limit."

     Since water quality standards experience revisions and upgrading from time
to time, following procedures set forth in the Federal Water Pollution Control
Act, individual entries in this digest may be superseded.  As these revisions are
accomplished, this digest will be updated and reissued.  Because this publication
is not intended for use other than as a general information resource, for the
latest information, and for special purposes and applications, refer to the existing
approved water quality standards which can be obtained from the State water pollution
control agencies or EPA Washington, B.C. or regional offices.

     Individual State-adopted criteria fibllow.

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                         KEY

PWS                                 Public Water Supply
F§WL                                Fish § Wildlife
Rec.                                Recreation
Agric.                              Agricultural
Ind.                                Industrial
MF                                  Millipore Filter
MPN                                 Most Probable Number
NOTE: Numerical references are stated in terms of mg/1  (Milligrams per Liter)

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                                 BACTERIA
National Technical Advisory  Committee Recommendations:
PWS
2000/100 ml fecal coliforms
10,000/100 total coli^orrs
20/100 fecal colifotrs n._, rahl.
ioo/100total col if OTTOS Desirabi<
Rec.          Primary: log mean 200/100; not more than 10? of samples to
              exceed 400/100.
              Secondary: log mean 1,000/100: not more than 10% of samples to
              exceed 2,000/100
Shellfish     Median 70/100 total, not more than 10% of samples to exceed
              230/100  (5-tube decimal dilution test) or 330/100  (3-tube
              decimal dilution test) in areas most probably exposed to
              fecal contamination during most unfavorable hydrographic and
              pollution conditions.  (National Shellfish Sanitation Program Manual
              of Operation Standards.)
                              *    *    *

Alabama       (EPA Proposal of water quality standards.)

              PWS:  NTAC levels.

              Primary contact recreation:  100/100 geometric mean fecal coliforms in
              coastal waters.  200/100 fecal'coliforms in fresh water. Where the
              geometric mean exceeds these levels, bacterial quality is acceptable
              only if a 'second detailed sanitary survey and evaluation discloses no
              significant public health rish".

              F gWL- Geometric mean fecal coliforms 100/100; BO sample to exceed

              Shellfish:   National Shellfish Sanitation Program Manual of
              Operations limits incorporated by reference.

Alaska  CLASS A   (PWS without treatment): Monthly average less than 50/100
              total coliform.

              B   (PWS with treatment): Monthly average less than 2000/100 total
              coliform; not more than 20% of samples should exceed this number.

              C  (Primary contact rec.): Monthly average less than 1000/100 total
              coliform,  \vith 20% of samples not to exceed this number. No sample
              shall exceed 2,400/100.

              D  (F a WL) - Same as "C."

              E (Shellfish)- National Shellfish Sanitation Program Manual of
              Operations limits incorporated by reference.

              F  (Agricultural)  - Average less than 1,000/100 with 20% of
              samples not to exceed 2,400/100.

              G  (Industrial) -  Limits for "C" should be met when worker contact
              is required.

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Arizona
            CLASS
              A (Domestic f, Industrial):  All waters except primary contact
              recreation, geometric mean 1000/100 fecal coliforms, nor more than 10%
              of samples exceed 2,000/100.

              B (Primary contact recreation):  Geometric mean 200/100 fecal coliforms,
              nor more than 10% of samples exceed 400/100.
              C (F f, WL):
                                as A-B.
Arkansas      Primary contact recreation: Monthly arithmetic average of 1000/100
              total coliform; nor exceed this number in more than 20% of samples
              per month; nor exceed 2,400/100 any day except during storm water
              run-off, provided that no fecal contamination is known to be
              present.

              Other waters: Monthly average 5,000/100 total coliforms , not  exceed  this
              number in more than 20% of samples per month; nor exceed 20,000/100
              in more than 5% .

California    Criteria are assigned by specific region.  The criteria below
              are representative.

              Shellfish: National Shellfish Sanitation Program Manual of
              Operations limits.

              Primary contact recreation:  Average 1000/100 total coliform;
              not more than 20% of samples exceed this number; no sample over
              10,000/100.  Other regions employ. 200/100 fecal coliforms criteria.

              Fish handling: E. coliform organisms less than 700/100; not
              more than 5% exceed 700/100. Various regions specify no change
              over background levels or none due to human wastes.
             Class
Colorado      A  (PWS) :  Log mean 1000/100 fecal coliforms, nor exceed 2000/100 in more
              than 101 of samples during month.

              B.I. (Cold water fishery):  Same as A,

              B.2. (Warm water fishery):  Same as A.

              B.3. (Body contact sports):  Monthly average 1000/100 total
              coliform;  nor exceed this in more than 20% of samples, nor
              exceed 2,400/100 in any sample. Also, 100/100 fecal coliforms and
              20/100 fecal streptococcus (both as average of 5 samples within
              month) .

             Class
Connecticut   A  (PWS) :  Median 100/100 total coliform nor more than 500/100
              in more than 10% of samples.

              B (Bathing):  Median 1000/100 total coliforms, nor exceed  2,400/100  in
              more than  20% of samples.

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Connecticut
Delaware
District of
 Columbia
Florida
Guam
CLASS

  C    (F 5  WL,  secondary contact recreation):   30 day average
  5,000/100  total coliform,nor exceed this in more than 201
  of samples.

  D   (Navigation,  Industrial):   None in concentrations that would
  impair assigned  usages.

  Criteria  are  assigned by river basin.   The criteria listed  below
  are representative.

  Body contact  recreation:  Monthly arithmetic average 1000/100
  total coliform during the recreation season; nor exceed this
  number in more than 20% of  samples per month;  nor exceed 2,400/100 on
  any day.

  F  § WL:   Monthly arithmetic average not exceed 2,400/100 total
  coliforms.

  Shellfish: Median coliform 70/100; not more than 10% of samples
  oridinarily exceed 230/100  (S-tube) or 330/100 (5-tube)  in  areas
  most probably exposed to fecal contamination during most unfavorable
  hydrographic  and pollution  conditions.

  Criteria  are  assigned to specific waters.   Potomac River, Md.
  to Key Bridge--Primary contact recreation as a future anticipated
  use (1975):   Fecal coliform not to exceed 240/100 in 90% of
  samples.   Potomac River,  Key Bridge to D.C.-Prince George's County
  Line--Secondary  contact recreation: Fecal colifomEnot to exceed
  a  geometric mean of 1,000/100 nor equal or exceed 2,000/100 in
  more than 10% of samples.   Rock Creek (wading in upper reaches):
  Fecal coliform not to exceed 200/100;  not applicable during or
  immediately following rainfall.

  (P1YS):  Monthly average 1,000/100 fecal coliforms; nor exceed this number
  in more than  20% of the samples per month; nor exceed 2,400/100
  on any day.

  (Shellfish):  Median coliform not exceed 70/100, not more than
  101 of samples exceed 230/100 in areas most probably exposed to
  fecal contamination during  most unfavorable hydrographic and pollution
  conditions.

  (Body contact recreation):   Monthly average 1000/100 total  coliform;
  nor exceed this  number in more than 20% of samples; nor exceed
  2,400/100 ml  on  any day.

  PWS:   No  discharges.   To extent discharges are occurring, fecal
  coliforms not exceed arithmetic mean 20/100 ml.

  Recreation:   Fecal  coliform not exceed arithmetic mean 200/100,
  nor exceed 400/100 in more  than 10% of samples.

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             CLASS

Georgia       (1) (PWS)

                  (a)  (Requiring disinfection only): Mean 50/100  fecal  coliforms;
                      not exceed 200/100 in more than 51 of samples during
                      90 days.

                  (b)  (Requiring treatment): Mean 5000/100 fecal  coliforms; not  exceed
                      20,000/100 in more than 5% of samples during 90 days.

              (2) (Recreation): Mean 1,000/100 fecal coliforms; not exceed 4,000/100 in
                   more than 5% of samples during 90 days.

              (3) (F § WL): Same as (1) (b).

                  Shellfish: Median total coliform 70/100 not more than 10%
                  exceed 230/100 (5-tube) or 330/100 (3-tube); not in areas
                  most probably exposed to fecal contamination during most
                  unfavorable hydrographic and pollution conditions.

              (4) (Agriculture): Mean 10,000/100 fecal coliforms; not exceed  40,000/LOO
                  in 5% of samples during 90 days.

              (5) (Ind.): No coliform criteria.

              (6) (Nav.): Same as (4).
             Class
Hawaii        AA (.nearly pristine): Median 70/100 total coliforms; nor  exceed  230/100
              at any time.

              A, 1 and 2 (all recreation; aesthetics): Total coliform median
              1000/100, nor more than 101 of samples exceed 2,400/100. Fecal Coliforms:
              Arithmetic average 200/100 during 30 days, nor more than 10%
              exceed 400/100.  Drinking and food processing following simple
              chlorination, fecal coliform arithmetic mean 200/100.

              B  (small boat harbors-commerical, bait fishing): Fecal coliform
              arithmetic average 400/100; nor more than 10% exceed 1000/100.

Idaho         Bacteria criteria are adopted for individual waters.
              Most rivers:  Average 1000/100 fecal coliform; 20%  of samples
              not to exceed 2,400/100.
              Lower Snake,Palouse, Spokane and Moyie Rivers:  Average 240/100
              fecal coliforms;Pend Oreille River, Pend Oreille Lake, Priest Lake
              and Coeur  D'Alene Lake: Average 240/100 along shore line of lakes,
              50/100 in main body of lake or stream.

Illinois      General Standards  (g)  Based on a minimum ot b samples taken over no1 mor
              more than a 30 day period, fecal coliforms shall not exceed a geometric
              mean of 200 per 100 ml,  not shall more than 10% of the samples during
              any 30 day period exceed 400 per 100 ml.

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Illinois      geometric mccui of 1000 per 100 nil. nor shall more than lOi of the
              samples during any 30 day period exceed 2000 per 100 ml.

              Lake Michigan (d) Bases on minimum of 5 samples taken over not more than
              a 30 day period, fecal coliforms shall not exceed a geometric mean of
              20 per 100 ml.
Indiana       PWS:   Monthly average total coliform 5,000/100; nor more than
              20% of samples exceed this; nor exceed 20,000/100 in more than
              51 of samples.

              Recreation:

                  Whole body contact:  Monthly geometric mean fecal coliforms not exceed
                  200/100, nor exceed  400/100 in more than 10% of samples.

                  Partial  body contact: Monthly geometric mean not exceed
                  1000/100, nor exceed 2000/100 in more than 101 of samples.

Iowa   CLASS  a- (PWS): Unsatisfactory when (1) sanitary survey indicates
                 probable  presence of objectionable bacteria-bearing wastes,
                 or (2) 2000/100 fecal coliform limits exceeded during low
                 flow when such bacteria are from pollution by sewage.

               c. (recreation--whole body contact): Unsatisfactor)' when a
                 sanitary survey indicates the probably presence of objectionable
                 bacteria-bearing wastes, or 200/100 fecal coliform limits are
                 exceeded  during low flow \vhen such bacteria are from pollution
                 from sewage.

Kansas        PWS:  2,000/100 fecal coliform per sample.

              Recreation including fishing:  200/100 fecal coliform per sample.

              Body contact recreation: Monthly log mean fecal coliforms200/100;no more
              than 10% of samples per month exceed 400/100 fecal coliforms.

Kentucky      PWS:  Monthly arithmetical average 5,000/100 total coliforms;not exceed
              this number in more than 201 of the samples: nor exceed in^nn/inn in
              more than 51 of the samples.

              Recreation including body contact: Average 1,000/100 total coliforms;
              not exceed this number in 201 of the samples; nor exceed 2400/100
              on any day.   If the level of total is exceeded, then fecal coliforms
              standard to  be used:  During May-Oct, 200/100 fecal rnlifnrm monthly
              geometric mean, nor exceed 400/100 in mnrp than 10% of the samples,
              and during Nov-Apr, 1,000/100 fecal coliforms monthly geometric
              nor exceed 2,000/100 in  more than 10% of rhp

Louisiana     Criteria are assigned by river basin.
              are representative.
                                                     The  criteria  listed below

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              Most fresh water areas, aquatic life and recreation:  Monthly
              median of total coliforms not exceed 1,600/100 ml, nor exceed
              5,420/100 ml in more than 10% of the samples.

              Coastal waters:  Monthly median of total coliforms not exceed
              70/100 ml, nor exceed 230/100 in more than 101 of the samples.

              Mississippi River, Zone 2:  Monthly median of total coliforms
              not exceed 230/100, nor exceed 790/100 in more than 10% of the
              samples.

              Sabine River, Zone 2:  Monthly median of total coliforms not
              exceed 542/100, nor exceed 1750/100 in more than 10% of the
              samples.

Maine   CLASS A (highest classification, including PWS after disinfection):
              100/100 total coliform bacteria.

              B-l (body contact recreation, PWS after treatment):  300/100 total
              coliforms 60/100 total coliform bacteria.

              B-2 (body contact recreation):  1,000/100 total coliforms, 200/100
              fecal coliforms.
              C (recreational boating, F § WL): 5,000/100 total coliforms, 1,000/100
              fecal coliforms.

              D (power, nav., ind.): Coliform limits only in those amounts which
              Commission determines will not indicate a condition harmful
              to public health or impair assigned usages.

              SA (all clean usages):  Median total coliforms not exceed 70/100,
              nor more than 10% of the samples exceed 230/100.  Median fecal coliforms
              not exceed 15/100, nor more than 10% of samples exceed 50/100.

              SB-1 (all clean uses, including shellfishing):  Shellfish areas
              same as SA; non-shellfish areas median coliform 240/100, nor
              more than 10% of samples exceed 500/100, and fecal not exceed
              50/100 nor more than 10% exceed 150/100.

              SB-2 (water contact recreation, shellfishing, etc.): Shellfish
              areas same as SA; non-shellfish areas median coliform 500/100
              nor more than 10% of the samples exceed 1,000/100, and fecal coliforms
              not exceed 100/100 nor more than 10% exceed 200/100.

              SC (recreational boating, etc.;  shellfish to be harvested for
              depuration purposes):  Shellfish areas, median total coliforms not exceed
              700/100 nor exceed 2,300/100  in more than 10% of the samples,
              and not exceed  150/100 fecal coliforms nor more than 101 exceed 500/100,
              non-shellfish  areas, median total coliforms not exceed 1.500/100 nor
              exceed 5,000/100 in more than 10% of the samples, and not exceed
              300/100 fecal coliforms nor more than 10% exceed 1,000/100.

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              CLASS

              SD  (power, nav.,  ind.): Coliform  limit  only in those amounts  which
              Commission determines will not  indicate a condition  harmful
              to public health  or-impair assigned uses.

Maryland      A (shellfish): MPN total coliforms less than  70/100; must
              comply with sanitary and bacteriological standards of Manual
              of Recommended Practices for Sanitary Control  of Shellfish
              Industry.

              B (PWS and water  contact recreation): Monthly  average not
              exceed 5,000/100, nor exceed this in more than 201 of samples,
              nor exceed 20,000/100 in more than 5%.  Recreation--Acceptable
              when sanitary survey reveals no source of dangerous  pollution
              and fecal coliforms not exceed  24U/100.  iVhen fecal  coliforms exceeds
              that limit, water acceptable only if second detailed sanitary survey
              discloses ho  significant public health  risk.

              C (F § WL): Same  as B (water contact recreation).
              Class
Massachusetts A (PWS): Not exceed 50/100 total  coliform.

              B (Water contact; PWS with treatment): Not  exceed 1,000/100 total
              cbliforms monthly average,  nor exceed 2400/100 in more than 20?  of
              samples.
              C (recreational boating, F § WL): None in concentrations that
              would impair any usages specifically assigned  to this class.

              D (aesthetics, power, nav., ind.): Same as  C,

              SA  (body contact  sports, shellfish): Median total coliforms 70/100,
              not exceed  230/100  in more than 10% of  samples during month.

              SB  (bathing, F § WL, restricted shellfish): Median total  coliforms
              700/100, not eKceed 2300/100 in more than 10%  of samples during month.

              SC  (recreational boating, F f, WL): None in  concentrations that
              would impair any usages specifically assigned  to this class.
             Class
Michigan      A(l) (PWS):  Great Lakes and connecting waters, monthly average
              not exceed 2000/100 total coliform  nor 20% of samples exceed
              that number.  Other waters, monthly average not exceed 5,000/100 nor
              20% of samples exceed that number, nor 5% of samples exceed
              20,000/100.

              A(2) (Ind.):  Average not exceed  5,000 total coliforms nor 20% of
              samples exceed 10,000/loo. Average fecal coliforms not exceed IOCC/100.

              B(l) (body contact recreation):  Average not exceed 1,000/100
              total coliforms,"nor 20% of samples exceed  5,000/100. Average fecal
              coliforms not exceed 100/100.

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              CLASS
Michigan      B(2) (partial body contact recreation): Average not exceed
              5,000/100 total coliforms nor 20% of samples exceed 10..000/100.
              Average fecal coliforms not exceed 1,000/100.
              C (F § WL): Average not exceed 5,000/100 total coliforms nor 201 of
              samples exceed 10,000/100. Average fecal coliforms not exceed  1000/100.
              D (Agricultural):  Same as C.
              E (Commerical):  Same as C, plus average fecal limit of
              1,000/100.
Minnesota     (1)  Domestic Consumption:
                   A  (without treatment): Total coliformsMPN 1/100.
                   B  (with simple chlorination): Total colifornBMPN 50/100.
                   C  (with treatment): Total coliformsMPN 4,000/100.
                   D  (with additional treatment): Total coliformsMPN 4,000/100.
              (2)  Fisheries and Recreation:
                   A  (body contact recreation): Total coliformsMPN 1,000/100.
                   B  (body contact recreation: Total coliformsMPN 1,000/100.
                   C  (boating): Total coliformsMPN 5,000/100.
              (3)  Industrial Consumption:
                   A  (most industrial purposes without treatment): Total coliforms
                   MPN 5,000/100.
                   B  (general industrial purposes, with moderate treatment):
                     Total coliforms MPN 5,000/100.
                   C  (limited industrial purposes without high degree of
                      treatment): Total coliforms MPN 5,000/100.
              (4)  Agriculture and Wildlife:
                   A  (irrigation): Total coliforms MPN 5,000/100.
                   B  (livestock § wildlife): Total coliforms MPN 5,000/100.
              (5)  Navigation and Waste Disposal: Total coliforms MPN 5,000/100.

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             CLASS

Mississippi   1. PWS:  Monthly average fecal coliforms not exceed 5000/100, nor
              exceed this in more than 201 of samples, nor exceed 20,000/100
              in more than 5% of samples.

              2. Shellfish:  Meet requirements of National Shellfish Sanitation
              Program Manual of Operations.

              3. Recreation (include body contact):  Monthly average fecal eoliforms
              not exceed 1,000/100, nor exceed this in more than 20% of the
              samples, nor exceed 2,400/100 at any time.

Missouri      Criteria are assigned by river basin.  The criteria listed below
              are representative.

              Mississippi River, waters designated for whole body contact:
              Fecal eoliforms not exceed geometric mean of 200/100 ml, nor more than
              101 of samples exceed 400/100 (not applicable when stream
              affected by storm water runoff).

              Mississippi River, waters for PWS, boating, fishing: Fecal eoliforms
              not exceed 2,000/100 (not applicable when stream affected by
              storm runoff).

              Missouri River: Same as Mississippi River PWS, etc.

              Taneycomo:  Same as Mississippi River body contact recreation.
              CLASS
Montana       A (PWS after disinfection):  Average total coliform less than
              50/100.

              A (PWS after disinfection § removal of natural impurities):
              Average total coliform less than 50/100 as result of domestic
              sewage.

              B (PWS after treatment): Average total eoliforms less than 1000/100 vhere
              demonstrated to be result of domestic sewage; not more than 20%
              of samples to exceed this value.

              All other classifications:  Same as B.
              CLASS
Nebraska      A (PWS): Not exceed geometric mean 10,000/100 total colifomB
              or 2,000/100 fecal eoliforms; 20% of samples not exceed 20,000/100
              total 6r 4,000/100 fecal eoliforms.

              B (full body contact sports): Not exceed geometric mean 200/100
              fecal eoliforms and not exceed 400/100 in more than 101 of semples.

              C (agricultural, partial body contact, F § WL): Same as A.

              Intermittent:  Not exceed geometric mean of 20,000/100 total colifcrms
              or 4,000/100 fecal eoliforms.

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                                  10
Nevada        No criteria.
            Class
New           A (highest quality; PWS after disinfection): 50/100 total ccliforms.
 Hampshire
              B (bathing): 240/100 total coliforms.

              C (recreational boating): No criteria.
            Class
New Jersey    FW-1 (natural): No man-made wastewater discharges.

              FW-2 (PWS after treatment, primary contact recreation): Fecal coliforms
              geometric mean 200/100.

              FW-3 (primary contact recreation): Same as FW-2.

              TW-1 (tidal--PWS, shellfhshing):  Shellfish, requirements of
              National Shellfish Sanitation Program Manual of Operations;
              Others, fecal coliforms geometric mean 200/100.

              TW-2 (secondary contact recreation): Fecal coliforms geometric mean
              770/100.      7
              TW-3 (navigation, fish survival): Fecal coliforms geometric mean,
              1,500/100.
              CW-1 (ocean within 1,500 feet from shore: primary contact recrea-
              tion):  Fecal coliforms geometric mean 50/100.

              CW-2 (ocean beyond 1,500 feet: secondary contact recreation):
              Fecal coliforms geometric mean 200/100.
New Mexico
New York

North
 Carolina
 Criteria are assigned by river basin.  The criteria listed
 below are representative.

 Pecos River (irrig., recreation, F § WL):  Geometric average
 fecal coliform 200/100.

 Canadian River (PWS, fishery): Arithmetic average fecal coliforms
 2,000/100;  where body contact recreation, same as Pecos River.

 Bacteria criteria established by state public health agency.
Class
 A-l (PWS):  Monthly average total coliforms 50/100.

 A-11 (PWS after treatment): Monthly average total coliforms 5000/100
 nor exceed this in more than 20% of the samples,  nor exceed 20,000/100
 in more than 51 of the samples.  Fecal coliforms  not exceed monthly log
 mean  of 1,000/100, nor exceed 2,000/100 in more  than 201 of
 samples (not applicable during or immediately following rainfall).

 B (bathing): Monthly log mean fecal coliforms not exceed 200/100 nor
 exceed 400/100 in more than 201 of samples (not applicable during or
 immediately following rainfall).

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                                 11

             CLASS
North         C (F § WL): Monthly log mean fecal coliforms not exceed 1000/100, nor
 Carolina     exceed 2,000/100 in more than 201 of samples (not applicable
              during or immediately following rainfall).

              D (agricultural, industrial): Monthly log mean fecal coliforms not
              exceed 1,000/100, nor exceed 2,000/100 in more than 201 of samples
              (not applicable during or immediately following rainfall).

              SA (shell): Median total coliforms not exceed 70/100, not more than 101
              of samples exceed 230/100 (S-tuhe)or 330/100 (3-tuhe) in areas most
              probably exposed to fecal contamination during most unfavorable
              hydrographic and pollution conditions.

              SB (bathing): Same as B.

              SC (F f, WL, boating): Same as C.

North         Criteria are assigned by river basin.  The criteria listed below
 Dakota       are representative.

              Red River of the North: Monthly arithmetic average total coliform
              5,000/100, nor exceed this in more than 20% of samples, nor exceed
              10,000/100 in more than 5% of samples. Average arithmetic monthly total
              c&liformsnot exceed 1,000/100 in Lake Ashtabula and Homme Dam
              Reservoirs.

              James River  (PWS, ind.,rec., F f, WL): Average arithmetic monthly
              not exceed 1,000/100 total coliforms in the Jamestown Reservoir.Av.erage
              arithmetic monthly not exceed 3,000/100 in the river nor exceed
              this number in more than 201 of samples, nor exceed 7,500/100 in more
              than 5% of samples.

              Footnote 1, all areas:  In general, waters with coliform count of
              1,000/100 or less are considered relatively safe for swimming.
              Natural physical characteristics of the river banks and bed and
              natural water turbidities in the area must also be considered.

Ohio          PWS: Monthly average total coliform 5,000/100, nor exceed this
              in more than 20% of samples, nor exceed 20,000/100 in more than
              5% of samples.

              Recreation,including water contact: Monthly average 1,000/100 total
              coliforms, nor exceed this in more than 20% of samples, nor exceed
              2,400/100 on any day.

Oklahoma      Criteria are assigned by river basin.  The criteria listed below
              are representative.

              Salt Fork of Arkansas above Great Salt Plains (F f, WL, recreation,
              PWS):  Sanitary survey required for bathing f, PWS waters.  PWS:
              monthly average total coliform not exceed 5,000/100, nor exceed
              this in more than 201 of samples, nor exceed 20,000/100 in more than

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                                 12

Oklahoma      20% of samples, nor exceed 20,000/100 in more than 51 of
  (Cont'd)     samples.  Body contact sports: Monthly average total coliforms
              not exceed 1,000/100 during the recreational season, nor exceed
              this in more than 20% of samples, nor exceed 2,400/100 on any
              day except during periods of storm water runoff; provided, fecal
              coliforms not exceed geometric mean 200/100, nor more than 10ft of
              exceed 400/100.  Bacteria] concentrations of other than natural
              origin will be maintained below levels detrimental to beneficial
              uses.

Oregon        General Water Quality Standards: No discharge which will cause
              in any waters: .  . .     Bacterial pollution .  . . deleterious
              to waters used for domestic purposes, livestock watering, irrigation,
              bathing, or shellfish propagation, or be otherwise injurious to
              public health.  Special standards for Goose Lake, Klamath River,
              Multnomah Channel, Willamette River, Grande Ronde River, Walla
              Walla River and Snake River:  Coliforms where associated with fecal
              sources, average not to exceed 1,000/100, with 201 of samples
              not to exceed 2,400/100.

              Special standards for Columbia River:  From eastern Oregon-Washington
              boundary to Hwy.  5 bridge between Vancouver and Portland: Average
              not to exceed 240/100 fecal coliform nor exceed this in more than
              20% of samples.  From bridge to mouth, same as special standard
              for Goose Lake, etc.

              Special standards for marine and estuarine water: For shellfish,
              median not exceed 70/100.  For others, same as upper Columbia.
              Class
Pennsylvania  fi (includes areas of primary contact recreation): From 5/15 to
              9/15, total coliforms not to exceed 1,000/100 ml monthly arithmetic
              average, nor exceed this number in more than 2 consecutive samples,
              nor exceed 2,400/100 in more than one sample.

              For the period 9/16-5/14, total coliform not to exceed 5,000/100
              average, nor exceed this in more than 20% of samples, nor 4xceed
              20,000/100 in more than 51 of samples.

              f2   (includes areas of PWS and  secondary contact recreation): Same
              as winter period of fj.

              £3 (includes areas of secondary contact recreation): Total coliforms
              not to exceed 5,000/100 ml monthly geometric mean.
              Class
Puerto Rico   SA (existing phenomena): No alterations.

              SB (shellfish): Median value  total coliform 70/100 ml.

              SC (bathing): Total coliformsnot exceed 1,000/100 monthly median,
              nor exceed this in more than  20% of samples, nor exceed 2,400/100 on
              any day.

              SD (marine life): Total coliformsnot exceed 5,000/100 monthly average.

              SE (industrial);  None.

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                                   13
              Class
Rhode Island  A (uniformly excellect; all uses): Total coliforms not to exceed
              median 100/100, nor more than 101 of samples exceed 500/100.

              B (primary contact recreation):  Total coliforms not exceed median
              of 1,000/100 nor more than  2,400/100  in more than  2m of  samples.

              C (secondary contact recreation): None in concentrations that would
              impair assigned uses.

              D (navigation, etc.): Same as C.

              SA (shell.): Total coliforms not to exceed median MPN of 70/100,
              nor more than 10% of samples exceed 230/100  (5-tube) or  330/100  (3-tube),

              SB (primary contact recreation;  restricted shell, area): Total
              coliforms not to exceed median 700/100, not more than 2,300 in
              more than 10% of the samples.

              SC (secondary contact recreation; fish and shellfish habitat):  Same
              as C.

              SD (navigation, industry, etc.)' Same as C.

              NOTE: Bacteria surveys of sea waters should include sampling
              during periods of most unfavorable hydrographic and pollution
              conditions.
             Class
South         AA (PWS with only disinfection and pH adjustment): Fecal coliforms
 Carolina     not exceed 20/100 monthly arithmetic average.

              A (swimming): Fecal coliformsnot exceed geometric mean 200/100, nor
              more than 10% of samples during 30 days exceed 400/100.

              B (PWS, secondary contact recreation): Fecal coliforms not exceed
              log mean 1,000/100 ml nor exceed 2,000/100 in more than 201 of
              samples (not applicable during or following rainfall).

              C (fish survival, industry, agriculture): Same as B.

              SA (shellfish): Meet U.S. PHS standards (1965 revision).

              SB (bathing): Same as A.

              SC (all uses except shellfish  mkt. and bathing): Same as B.
             Class
South         1. (PWS):  Total coliformsnot exceed MPN or MF (Millipore Falter)  of
 Dakota       5,000/100  monthly average, nor exceed this in more than  201 of samples,
              nor exceed 20,000/100 in more than 5S of samples.

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South
 Dakota
Tennessee
Texas
                    14

CLASS
 2.(fish life propagation):  No criteria.

 3(a)   (immersion sports):  Fecal coliform not exceed 200/100 monthly
 average,. nor exceed this  in more than 201 of samples,  nor
 exceed 500/100 on any day during the recreation season.

 3(b)  (limited contact recreation):  Fecal coliforms1,000/100 monthly
 average, nor exceed this  in more than 201 of samples,  nor exceed
 2,000/100 on any day during the recreation season.

 4.(wildlife):   No criteria.

 5. (irrigation—applicable during the irrigation season only,
 and only to waters used to irrigate root crops  and recreation
 areas):  Fecal coliformsnot exceed 1,000/100 monthly average,
 nor exceed 2,000/100 in any sample.

 6.(commerce f, ind.):  No criteria.

 7.(intermittent stream):  Total coliform not exceed 20,000/100
 monthly average, nor exceed in more than 20% of samples  in month;
 nor exceed 50,000/100 in  any sample.
 CLASS
 1.  (PWS):  Total coliform  not exceed 10,000/100  monthly average
 (MPN  or MF) nor exceed this in more than 20% of samples  in month,
 nor exceed 20,000/100 in  more than 51 of samples.   Values may be
 exceeded provided organisms are known to be nonfecal.  No disease
 producing bacteria or other objectionable organisms shall be added
 to  surface waters which will result in their contamination to such
 extent as to render water unsuitable for PWS after conventional treat-
 ment.
 2.  (Ind.:  No critera.

 3.  (F § WL): No criteria.

 4.  (Rec.):  Fecal coliform not exceed 5,000/100  monthly average,
 nor exceed in more than 201 of samples during month, nor exceed
 20,000/100 in more than 5%  of samples.  For water  contact rec.,
 fecal  coliform not exceed 1,000/100 in 2 consecutive samples
 May-Sept.   Water areas near outfalls of domestic sewage  treat-
 ment  plants are not considered suitable for water  contact recreation.

 Criteria are assigned by  river basin.  The criteria listed below
 are representative.   In addition,  the following "General Statement"
 applies:

 Water oriented recreation,  including water contact sports,
 is  a  desirable use of the waters of the state everywhere.   Water
 contact activities in natural waters are not opposed by  the state
 health agency where routine sanitary surveys support such activities,
 and where, in addition, as a flexible guide-line to be used in the
 light of conditions disclosed by the sanitary survey,  the geometric
 means of the number of fecal coliform bacteria  is  less than 200/100

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                                 15


              ml and not more than 101 of the samples during any 30 day
              period exceed 400/100.   The policy is advisory only and in no
              way limits the responsibilities and authorities of local health
              agencies.

                  It is  highly desirable for waters comprising the raw water
              supply to  a public surface water treating plant that the total
              coliform bacteria should not exceed 100/100 and the fecal coliform
              bacteria should not exceed 20/100.  Nevertheless, raw water
              supplies to surface water treating plants shall not be deemed
              unsatisfactory where the total coliform organisms do not exceed
              20,000/100 and the fecal coliform organisms do not exceed 2,000/100.
              The evaluation of raw water supplies cannot be reduced to the
              simple counting of bacteria of any kind and the foregoing must be
              used with judgment and discretion and this paragraph is not in-
              tended to limit the responsibilities and authorities of res-
              ponsible local governments or local health agencies.

              Galveston Bay (includes swimming and fishing): MPN log. ave. not
              more than 70/100 ml.

              Guadalupe River Tidal (includes swimming and fishing): MPN log.
              ave. not more than 1,000/100.

              Colorado River (including swimming and fishing): See "General
              Statement."

              Rio Grande River (including swimming and fishing): See "General
              Statement."
             Class
Utah          A (PWS without treatment; recreation): Bacterial standards as
              prescribed for drinking water by ''PHS Drinking Water Standards, 1962."

              B (PWS after disinfection; recreation): Monthly arithmetic mean
              colifornsnot exceed 50/100 ml; 201 of samples may exceed this if
              no more than 51 exceed 100/100.

              C (PWS after treatment; recreation, excepting swimming unless
              natural purification action results in quality consistent with class
              "CR" standard and swimming is specifically approved by state
              board of health): Monthly arithmetic mean total coliforms  not to
              exceed 5,000/100, except 20% of samples may exceed this if no more
              than 5% exceed 20,000/100, and monthly arithmetic mean coliforms shall
              not exceed 2,000/100.

              CR  (swimming): Monthly arithmetic mean colifomSnot exceed 1,000/100;
              no more than 20? exceed this and no more than 51 exceed 4,000/100;
              and monthly arithmetic mean fecal coliforms exceed 200/100,  provided
              no more than 10% exceed 400/100.

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 Utah
 Vermont
                     16

CLASS
  D (limited irrigation,  not including lawns,  rec.  areas,
  dairy pastures,  root crops or low growing crops for human
  consumption):  Monthly arithmetic mean coliformsnot exceed
  5,000/100, except 20% of samples may exceed  this if no more
  than 5% exceed 20,000/100.

  A (PWS with disinfection): Total coliformsnot exceed 100/100.
  Fecal coliform:none attributable to discharge of domestic or
  or industrial  iirastes.

  B (PWS with treatment ;bathing) :  Total coliforrrunot exceed
  500/100.  Fecal coliform not exceed 200/100.

  C (secondary contact recreation): Fecal coliformsnot to exceed
  1,000/100.

  D (supporting  aerobic aquatic life, nav., ind., mixing zones):
  Fecal coliform not to exceed 2,000/100.
Virginia
 Virgin
  Islands
  Subclass A (PWS,  secondary contact recreation):  Fecal coliforms
  not exceed log mean 1,000/100 ml.   Not equal or exceed 2,000/100
  in more than 10%  of samples.   Monthly average total coliformsnot
  exceed 5,000/100;  not more than this in more than 20% of samples;
  not more than 20,000/100 in more than 5% of samples.*

  Subclass B (PWS,  primary contact recreation): Fecal coliform
  not exceed log mean 200/100 ml.  Not more than 101 of samples
  exceed 400/100.  Monthly average total coliformsnot exceed 2,400/100.
  Not exceed this number in more than 201 of samples.  Not applicable
  during or immediately after rainfall.*

  *  With exception of coliform standard for shellfish, the enforceable
  standards will be those pertaining to fecal coliform organisms.
  The MPN concentrations are retained as administrative guides for
  use by water treatment plant  operators.

        (open ocean or estuaries where shellfish beds present):
  Not more than 70/100 coliforms.Not more than 101 of samples
  greater than 230/100 (5-tube) or 330/100 (3-tube). . .
 Class
  A (natural phenomena): No change.

  B (marine life):  No criteria.

  C (recreation): Fecal coliform not greater than 70/100 monthly
  average.

  D (harbors and docking): Fecal colifornsnot greater than 1,000/100
  monthly average.

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                                 17


Washington    Statewide use classification system plus specific criteria for
              specific areas.
              Class
              AA Extraordinary (all uses): Total coliforms not exceed median
              of 50/100 (fresh water) or  70/100  (marine) with less than 101 of
              samples exceed 230/100 when associated with any fecal source.

              A Excellent  (PWS, swimming, shellfish  reprod., rearing §
              harvest):  Total coliformgnot exceed median values of 240/100
              (fresh water) with less than 20% of samples exceeding 1,000/100
              when associated with any fecal source or same as AA (marine).

              B Good  (swimming, shellfish reproduction and rearing, and
              Crustacea (crabs, shrimp, etc.) harvest): Total coliforms not
              exceed median values of 1,000/100, with less than 201 of samples
              exceeding 2,400/100 when associated with any fecal source.

              C Fair  (comm., nav., boating): Total coliforms not exceed median
              values of 1,000/100 when associated with any fecal source.

West Virginia Criteria are assigned by river basin.
              Majority of  river basins: Total coliformsnot to exceed  1,000/100
              monthly average, nor exceed this in 20% of  samples, nor exceed
              2,400/100 on any day.

              Kanawha River, Zone 2*, certain Bluestone River tributaries*,
              and Youghiogheny River.*§**  Tbtal coliforms not to exceed 5,000/100
              monthly average nor exceed  this in more than 20% of samples nor
              exceed 20,000/100 in omre than 5% of samples.


              *Present uses and criteria  to exist for a maximum of 5 years.
            ** Kiture uses  and criteria will exist after suitable abatement  is
              effected.

              Class
Wisconsin     (2) (PWS): Total colifornsnot to exceed 5,000/100 monthly
              arithmetic average nor exceed this in more  than 20% of  samples,
              nor exceed 20,000/100 in more than 5% of samples.

              (4) (Recreation): Sanitary  survey and/or evaluation to  assure
              protection from fecal contamination is the  chief criterion.
              Additional "Guidelines" as  follows:

              (a) Whole body contact:  Arithmetic average total coliforms 1,000/100
              or less and  maximum not exceeding  2,500/100 during the  recreation
              season.

              (b) Partial  body contact: Arithmetic average total coliforms
              5,000/100 or less and  no more  than 1  of last 5 samples exceeding
              20,000/100 during  the  recreation season.

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                                 18


Wyoming       State established "Basic Water Quality Standards" plus standards
              for individual rivers.

              Basic Standard:  During recreation season (May 1-Sept 30), limited
              body contact use: Fecal coliforra, no samples shall exceed the
              95% confidence limit of the historical average,in no case may
              geometric mean of last 5 samples exceed 2,000/100, whichever is
              the least.

              Criteria assigned to specific areas: Fecal coliform not to exceed
              240/100 as geometric mean of least 5 samples, nor exceed 250/100
              in any one sample.

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