BACTERIAL WATER QUALITY STANDARDS
FOR RECREATIONAL WATERS
(FRESHWATER AND MARINE WATERS)
STATUS REPORT
June 2003
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BACTERIAL WATER QUALITY STANDARDS
FOR RECREATIONAL WATERS
(FRESHWATER AND MARINE WATERS)
STATUS REPORT
June 2003
U.S. Environmental Protection Agency
Office of Water (4305T)
1200 Pennsylvania Avenue, NW
Washington, DC 20460
EPA-823-R-03-008
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Contents
Introduction 1
Water Quality Standards Background 3
EPA Criteria for Bathing
Freshwater 4
Marine Water 4
Acknowledgments 5
Bacterial Water Quality Standards - Summary Information
Summary of Bacterial Water Quality Standards for States, Tribes, and Territories (By EPA Region) .... 6
Narrative Summary 9
Detailed Overview
Region 1 10
Connecticut 10
Maine 10
Massachusetts 10
New Hampshire 11
Rhode Island 11
Vermont 11
Region 2 12
New Jersey 12
New York 12
Puerto Rico 13
Virgin Islands 13
Region 3 14
Delaware 14
District of Columbia 14
Maryland 14
Pennsylvania 14
Virginia , 14
West Virginia 14
Region 4 15
Alabama 15
Florida 15
Georgia 15
Kentucky 15
Mississippi 15
North Carolina 15
South Carolina 16
Tennessee 16
Miccosukee Tribe of Indians of Florida 16
Seminole Tribe of Florida 16
Region 5 16
Illinois 16
Indiana 16
Michigan 16
Minnesota 17
Ohio 17
Wisconsin 17
Fond du Lac Band of the Chippewa Tribe 17
Sokaogon Chippewa Community of the Mole Lake Band of Chippewa Indians 17
ii
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Region 6 18
Arkansas 18
Louisiana 18
New Mexico 18
Oklahoma 18
Texas 18
Pueblo of Acoma 19
Pueblo of Isleta 19
Pueblo of Nambe 19
Pueblo of Picuris 19
Pueblo of Pojoaque 19
Pueblo of Sandia 19
Pueblo of San Juan 19
Pueblo of Santa Clara 20
Pueblo of Tesuque 20
Region 7 20
Iowa 20
Kansas 20
Missouri 20
Nebraska 20
Region 8 21
Utah 21
Wyoming 21
Colorado 21
Montana 21
North Dakota 22
South Dakota 22
Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation 22
Confederated Salish and Kootenai Tribes of the Flathead Reservation 22
Region 9 23
Arizona 23
California 23
Hawaii 24
Nevada 25
American Samoa 25
Common wealth of the Northern Mariana Islands 25
Guam 26
Hoopa Valley Tribe 26
White Mountain Apache Tribe 26
Region 10 26
Alaska 26
Idaho 26
Oregon 27
Washington 27
Confederated Tribes of the Chehalis Reservation 27
Confederated Tribes of the Colville Reservation 28
Confederated Tribes of the Warm Springs Reservation 28
Confederated Tribes of the Umatilla Reservation 28
Puyallup Tribe of the Puyallup Reservation 28
Spokane Tribe 28
ill
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Introduction
In 1997, the U.S. Environmental Protection Agency established the Beaches Environmental
Assessment, and Coastal and Health (BEACH) Program. The goal of the BEACH program is to
reduce risks to human health caused by exposure to pathogens in recreational waters. Surveys
and ongoing scientific studies continue to document the presence of, or the potential for, disease-
carrying bacteria, viruses, and other pathogens present in local beach water, primarily from
sewage and stormwater runoff. Humans can be exposed to pathogens in recreational waters
through ingestion, inhalation, and body contact.
The BEACH Program focuses on the following five areas to improve public health and
environmental protection programs for beach goers, and to provide the public with information
about the quality of their beach water:
Strengthening beach standards and testing
Providing faster laboratory test methods
Predicting pollution
Investing in health and methods research
Informing the public
The Beaches Environmental Assessment and Coastal Health (BEACH) Act of 2000 authorized
EPA to award grants for development and implementation of programs to notify the public of the
potential exposure to disease-causing microorganisms in coastal recreation waters. Program
development and implementation grants to eligible States, Territories, Tribes, and local
governments support microbiological testing and monitoring of coastal recreation waters,
including the Great Lakes, that are adjacent to beaches or similar points of access used by the
public. The BEACH Act also amended Section 303 of the Clean Water Act to require by April
10,2004 that coastal and Great Lakes states adopt EPA's published indicators for pathogens
with criteria as protective as those published by EPA, in their water quality standards.
EPA is working with states and tribes to assist them in adopting water quality criteria for EPA's
published pathogen indicators, E. coli and/or enterococcus bacteria, in their water quality
standards. The Agency is also working with states, tribes, and local governments to strengthen
local beach health monitoring efforts and procedures to achieve these standards. EPA assistance
includes awarding grants for beach monitoring and public notification as well as providing
technical assistance and training.
This document, Bacterial Water Quality Standards for Recreational Waters (Freshwater and
Marine Waters) - Status Report provides a brief overview of the bacterial water quality standards
that have been adopted by states for their marine and fresh recreational waters in the United
States. This report is based on consultations with EPA water quality standards coordinators.
The report is accurate as of September 2002; however, there may be revisions to standards that
are not reflected in this report. EPA will update the report periodically to reflect new
information. The information in the report is presented in summary format for both
states/territories and tribes. The summary is organized first by EPA region, and then by state,
territory, and tribe within each region.
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For the precise regulatory language applicable to a particular state, the reader should consult the
water quality standards of the state. Copies of state water quality standards may be obtained
from the state's water quality management agency or its equivalent (EPA houses a repository of
state, tribal, and territorial water quality standards on its website at
http://www.epa.gov/waterscience/standards/wqslibrary/). Readers should also note that
standards in this report may not be the only guidelines or standards in effect for recreational
waters in a particular location. It is not uncommon for local health agencies to develop and
adopt site-specific guidelines as part of their public health codes. One should consult the
appropriate local health agency to obtain detailed information.
EPA's BEACH Program is improving public access to information about the quality of the water
at their beaches and health risks associated with swimming in those waters. More information
about water quality at our nation's beaches, local protection programs, and other beach-related
programs is available on EPA's "Beach Watch" internet website at
http://www.epa.gov/waterscience/beaches/.
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Water Quality Standards Background
In response to widespread public concern about the condition of our nation's waters, the United
States Congress enacted landmark legislation in 1972. This statute, the Federal Water Pollution
Control Act Amendments of 1972 (referred to as the Clean Water Act of 1972, or CWA),
expanded and built upon existing laws designed to control and prevent water pollution.
Successive amendments to the 1972 CWA (the Clean Water Act of 1977 and the Water Quality
Act of 1987) have continued to strengthen the law to better protect our nation's waters.
Water quality standards are the cornerstone of a state's water quality management program.
States, territories, and Indian tribes set water quality standards for waters within their
jurisdictions. Water quality standards define a use for a waterbody and describe the specific
water quality criteria to achieve that use. The water quality standards also contain
antidegradation policies to protect existing water quality. These are the goals by which success
is ultimately gauged for a given waterbody or watershed.
The water quality standards program is administered by the U.S. Environmental Protection
Agency (EPA). Congress has mandated that EPA is responsible for providing water quality
criteria recommendations; approving state-adopted standards for waters of the United States;
evaluating adherence to the standards; and overseeing enforcement of standards compliance.
Guidance for the development of standards by individual states, tribes, and territories is
contained in the EPA documents Water Quality Standards Handbook, Second Edition (1983)
and Ambient Water Quality Criteria for Bacteria (1986).
Fecal bacteria have been used as an indicator of the possible presence of pathogens in surface
waters and the risk of disease, based on epidemiological evidence of gastrointestinal disorders
from ingestion of contaminated surface water or raw shellfish. Contact with contaminated water
can lead to ear or skin infections, and inhalation of contaminated water can cause respiratory
diseases. The pathogens responsible for these diseases can be bacteria, viruses, protozoans,
fungi, or parasites that live in the gastrointestinal tract and are shed in the feces of warm-blooded
animals.
However, because of the difficulties in analyzing for and detecting the many possible pathogens
or parasites, concentrations of fecal bacteria, including fecal conforms, enterococci, and
Escherichia coli, are used as the primary indicators of fecal contamination. The latter two
indicators are considered to have a higher degree of association with outbreaks of certain
diseases than fecal coliforms and were recommended as the basis for bacterial water quality
standards in the 1986 Ambient Water Quality Criteria for Bacteria document (both for fresh
waters, enterococci for marine waters). The standards are defined as a concentration of the
indicator above which the health risk from waterborne disease is unacceptably high.
Prior to the 1986 revision to the National criterion, there were recommendations in the report of
the National Technical Advisory Committee to the Secretary of the Interior, Water Quality
Criteria (1967) and by EPA in Quality Criteria for Water (1976). Both of these documents were
based on fecal coliforms and recommended that maximum densities not exceed geometric means
of 200 organisms per 100 ml in recreational waters.
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The 1986 criteria statement for bacteriological criteria follows:
EPA Criteria for Bathing (Full Body Contact)
Recreational Waters
Freshwater
Based on a statistically sufficient number of samples (generally not less than 5 samples equally
spaced over a 30-day period), the geometric mean of the indicated bacterial densities should not exceed
one or the other of the following:'
£ co/i 126 per 100 ml; or
Enterococci 33 per 100 ml.
No sample should exceed a one sided confidence limit (C.L.) calculated using the following as guidance:
Designated bathing beach 75% C.L.
Moderate use for bathing 82% C.L.
Light use for bathing 90% C.L.
Infrequent use for bathing 95% C.L.
based on a site-specific log standard deviation, or if site data are insufficient to establish a log standard
deviation, then using 0.4 as the log standard deviation for both indicators.
Marine Water
Based on a statistically sufficient number of samples (generally not less than 5 samples equally spaced
over a 30-day period), the geometric mean of the enterococci densities should not exceed 35 per 100 ml.
No sample should exceed a one sided confidence limit using the following as guidance:
Designated bathing beach 75% C.L.
Moderate use for bathing 82% C.L.
Light use for bathing 90% C.L.
Infrequent use for bathing 95% C.L.
based on a site-specific log standard deviation, or if site data are insufficient to establish a log standard
deviation, then using 0.7 as the log standard deviation.
'Only one indicator should be used. The regulatory agency should select the appropriate
indicator for its conditions.
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Acknowledgments
This report is an update of the 1997 Bacterial Water Quality Standards Report and was compiled by
Susan Emerson in the Office of Science and Technology. To ensure the completeness and accuracy of
this overview, the following EPA Regional Water Quality Standards Coordinators were consulted:
Region 1: Matt Liebman, Office of Ecosystem Protection
Boston, MA
Region 2: Wayne Jackson, Division of Environmental Planning and Protection
New York, NY
Region 3: Cheryl Atkinson, Water Protection Division
Philadelphia, PA
Region 4: Fritz Wagener, Water Management Division
Atlanta, GA
Region 5: Holly Wirick, Water Division
Chicago, IL
Region 6: Russell Nelson, Water Quality Protection Division
Dallas, TX
Region 7: Larry Shepard, Water, Wetlands and Pesticides Division
Kansas City, KS
Region 8: Dave Moon, Office of Ecosystem Protection and Remediation
Denver, CO
Region 9: Phil Woods, Water Division
San Francisco, CA
Region 10: Marcia Lagerloef, Office of Water
Seattle, WA
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Bacterial Water Quality Standards - Summary Information
Summary of Bacterial Water Quality Standards for States, Tribes, and Territories (By EPA Region)
State /Tribe /Territory
Fres
Region 1
Criteria"
hwater Marine Water
Connecticut ' EN/FC/TC EN
Maine EC
Massachusetts FC
New Hampshire EC
EN
FC
EN
Rhode Island FC/TC FC/TC
Vermont EC
Region 3
Delaware EN
District of Columbia FC
EN
*
Maryland EC/EN/FC EN/FC
Pennsylvania FC
Virginia EC/FC EN/FC
West Virginia FC
State / Tribe /Territory
Region 2
New Jersey
New York
Puerto Rico
Virgin Islands
Region 4
Alabama
Florida
Georgia
Kentucky
Mississippi
North Carolina
South Carolina
Tennessee
Miccosukee Tribe of Indians of Florida
Seminole Tribe of Florida
Criteria"
Freshwater [Marine Water
EN/FC
FC/TC
FC/TC
FC
FC
FC
FC
FC
FC
FC
EC/FC
FC/TC
FC
EN/FC
FC/TC
EN/FC/TC
FC
FC
FC
FC
*
FC
FC
FC
1 FC = fecal coliforms; TC = total coliforms; EN = enterococci; EC = Escherichia coli.
2 Many jurisdictions use both the 1986 indicator criteria and fecal coliforms; some continue to use total coliforms. Even if a state has the authority to use the 1986 indicators, it may
use another indicator at its discretion
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Summary of Bacterial Water Quality Standards for States, Tribes, and Territories (By EPA Region)
State / Tribe / Territory Criteria1-1
Freshwater | Marine Water
Region 5
Illinois FC *
Indiana EC
Michigan EC/FC
Minnesota FC
Ohio EC/FC
Wisconsin FC
Fond du Lac Band of the Chippewa Tribe EC
Sokaogon Chippewa Community of the Mole Lake EC/EN
Band of Chippewa Indians
State / Tribe / Territory Criteria1'1
Freshwater Marine Water
Region 6
Arkansas FC
Louisiana FC FC
New Mexico FC *
Oklahoma EC/EN/FC
Texas EC/EN/FC EN/FC
Pueblo of Acoma EC/EN/FC
Pueblo of Isleta EC/FC
Pueblo of Nambe FC
Pueblo of Picuris EC/FC
Pueblo of Pojoaque EC/FC
Pueblo of Sandia FC
Pueblo of San Juan EC/FC
Pueblo of Santa Clara FC
Pueblo of Tesuque FC
FC = fecal coliforms; TC = total coliforms; EN = enterococci; EC = Escherichia colt.
2 Many jurisdictions use both the 1986 indicator criteria and fecal colifbrms; some continue to use total coliforms. Even if a state has the authority to use the 1986 indicators, it may
use another indicator at its discretion.
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Summary of Bacterial Water Quality Standards for States, Tribes, and Territories (By EPA Region)
State /Tribe /Territory
Fres
Region 7
Iowa FC
Kansas FC
Missouri FC
Nebraska FC
Criteria"
iwater Marine Water
Region 9
Arizona EC
California3 EC/EN/FC/TC EN/FC/TC
Hawaii FC
EN
Nevada EC/FC
American Samoa FC
EN
Commonwealth of the Northern Mariana Islands EC/EN/FC FC/EN
Guam EC/EN EN
White Mountain Apache Tribe of the Fort Apache EC/FC
Reservation
Hoopa Valley Tribe EC/EN
State / Tribe /Territory
Criteria"
Freshwater Marine Water
Region 8
Colorado EC/FC
Montana FC
North Dakota FC
South Dakota FC
Utah FC/TC
Wyoming FC
Assiniboine and S ioux Tribes of the Fort Peck Res. EC/FC
Confederated Salish & Kootenai Tribes of the FC/TC
Flathead Reservation
Region 10
Alaska FC FC
Idaho EC
Oregon EC FC
Washington FC FC
Confederated Tribes of the Chehalis Reservation FC FC
Confederated Tribes of the Colville Reservation EN
Confederated Tribes of the Umatilla Reservation EC
Confederated Tribes of the Warm Springs Reservation EC
Puyallup Tribe of the Puyallup Reservation FC FC
Spokane Tribe EC
1 FC = fecal coliforms; TC = total coliforms; EN = enterococci; EC = Escherichia coli.
1 Many jurisdictions use both the 1986 indicator criteria and fecal coliforms; some continue to use total coliforms.
3 California has 9 Regional Boards; some use the 1986 indicator criteria, whereas some use fecal eoliform and total coliform entirely or for other purposes.
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Narrative Summary
Eighteen states, twelve tribes, and two territories have adopted an E. coli standard for freshwaters:
States: Tribes: Territories:
Arizona Assiniboine and Sioux Tribes Commonwealth of the
California ' of the Fort Peck Reservation Northern Mariana Islands
Colorado Confederated Tribes of the Guam
Idaho Umatilla Reservation
Illinois Confederated Tribes of the
Indiana Warm Springs Reservation
Maine Fond du Lac Band of the
Maryland Chippewa Tribe
Michigan Hoopa Valley Tribe
Nevada Pueblo of Acoma
New Hampshire Pueblo of Isleta
Ohio Pueblo of Picuris
Oklahoma Pueblo of Pojoaque
Oregon Pueblo of San Juan
Tennessee Spokane Tribe
Texas White Mountain Apache Tribe
Vermont of the Fort Apache
Virginia Reservation
Six states, three tribes, and two territories use enterococci as a standard for freshwaters:
States: Tribes: Territories:
California Confederated Tribes of the Commonwealth of the
Connecticut Colville Reservation Northern Mariana Islands
Delaware Hoopa Valley Tribe Guam
Maryland Pueblo of Acoma
New Jersey
Oklahoma
Nine states and four territories use enterococci as a standard for marine waters:
States: Territories:
California American Samoa
Connecticut Commonwealth of the Northern Mariana
Delaware Islands
Hawaii Guam
Maine Puerto Rico
Maryland
New Hampshire
New Jersey
Texas
Virginia
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Bacterial Water Quality Standards - Detailed Overview
Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater
Primary Secondary
Marine
Primary Secondary
Region 1 Connecticut Class AA 100TC
....»......»««.,,,,....<,<,<,<,.,.,...4 4--**«»»*»»»y ............ P,....... ............IF* *,.-......».....
No single sample to exceed 500 TC. Class AA waters are
not meant for contact recreation.
Class A/SA 3 3 EN 100I9 33 ?N
No single sample may exceed 61 EN. TC value is monthly
moving average. No more than 10% of TC samples may
exceed 500.
Class B/SB 33 EN 200.F.C. 33EN
No single sample may exceed 61 EN. No more than 10% of
FC single samples may exceed 400.
Comments: EC criteria do not apply to all primary contact recreation waters, only
established bathing waters.
Maine Class AA & A/SA (see note) (see note)
Note: Bacteria content may be as naturally occurs.
Class B/SB 64 EC 8 EN
For season May 15-September 30. No Class B sample may
exceed 427 EC. No Class SB sample may exceed 54 EN.
Class C/SC 142 EC HEN
For season May 15-September 30. No Class C sample may
exceed 949 EC. No Class SC sample may exceed 94 EN.
Massachusetts Class A/SA 20 FC 200 FC
Primary freshwater value based on arithmetic mean. No more
than 10% of FC samples may exceed 100 for freshwater and
400 for marine waters, respectively. Marine value may be
applied seasonally.
Class B/SB 200 FC 200 FC
No more than 10% of FC samples may exceed 400. Marine
value may be applied seasonally.
Class C/SC 1000 FC 1000 FC
No more than 10% of FC samples may exceed 2000.
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Bacterial Water Quality Standards by EPA Region
Freshwater Marine
Region State Class Primary Secondary Primary Secondary
Region 1 New Hampshire Class A 47 EC 3 5 EN
No single sample may exceed 153 EC or 104 EN. For
"beach," no single sample may exceed 88 EC. Based on
minimum of 3 samples taken in a 60-day period.
Class B 126 EC 35 EN
No single sample may exceed 406 EC or 104 EN.
Based on minimum of 3 samples taken in a 60-day period.
Class B (beaches) 47 EC
No single sample may exceed 88 EC Based on minimum of 3
samples taken in a 60-day period.
Temporary Partial (none) (none) (none) (none)
Use
Rhode Island Class A/SA 100TC 70 TC
20 FC 15 FC
Primary values based on median. No more than 10% of TC
samples may exceed 500 and 3 30, respectively, No more than
10% of FC samples may exceed 200 and 50, respectively.
Class B/SB 1000TC 700 TC
Values based on median. No more than 20% and 10% of TC
samples may exceed 2400 and 2300, respectively.
200 FC 50 FC
Values based on median. No more than 20% and 10% of FC
samples may exceed 500 and 500, respectively.
Class C/SC (see note) (see note)
Note: None in concentrations that would impair any uses
assigned to this class.
Comments: Marine FC criteria are guides pending further research.
Vermont Class A 18 EC
Class B 77 EC
Secretary may waive October 31-April 1.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 2 New Jersey
Freshwater 1
(FW1)
(see note) (see note)
shall be maintained as to quality in the natural state.
Pinelands Waters (see note) (see note)
Freshwater 2
(FW2)
Saline Estuary 1
(SE1)
Saline Estuary 2
(SE2)
shall be maintained as to quality in the natural state or the
quality necessary to protect the designated use, whichever is
more stringent
33 EN
200 FC
No more than 10% of FC samples may exceed 400.
No single EN sample may exceed 61,
35 EN
200 FC
No more than 10% of FC samples may exceed 400.
No single EN sample may exceed 104.
770 FC
Saline Estuary 3
(SE3)
1500FC
Saline Coastal 35 EN
(SC) Waters 50 FC (within 1500 ft of
coastline)
200 FC (1500 ft-3 mi)
No more than 10% of FC samples may exceed 400.
No single EN sample may exceed 104.
Mainstem Delaware River and Delaware Bay:
Zones 1C.1D.1E.6 200 FC
Zone 2 200 FC 770 FC
Primary RM 133.4-117.81; secondary RM 133.4- 108.4
Zones 3.4 770 FC
Zone 5 200 FC 770 FC
Primary RM 59.5^8.2; secondary RM 78.8-59.5
New York Class AA 50 TC
Value based on median. No more than 20% of TC samples
may exceed 240. Standards apply during periods of
disinfection.
Class A 2400 TC
200 FC
TC value based on median. No more than 20% of TC samples
may exceed 20,000.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater
Primary Secondary
Marine
Primary Secondary
Region 2
(cont'd.)
New York
(continued)
Puerto Rico
Virgin Islands
Class B/SB
Class C/SC
Class D/SD
2400 TC
200 FC
2400 TC
200 FC
TC values based on median. No more than 20% of TC
samples may exceed 5000.
2400 TC
200 FC
2400 TC
200 FC
Class I
Class A-Special
(A-S)
TC values based on median. No more than 20% of TC
samples may exceed 5000.
2400 TC
200 FC
TC values based on median. No more than 20% of TC
samples may exceed 5000. Criteria apply only to Class D
waters. There are no bacterial criteria for Class SD waters.
Class SD waters are not meant for recreational purposes.
10000TC
2000 FC
1000 TC
Fresh Surface
Water
200 FC
Class SA
Class SB
Class SC
Class SD
Class SE
Class A
Class B
(see note)
Note: May not be altered except by natural causes.
35 EN
200 FC
35 EN for "intensely used waters"; otherwise, 200 FC. No
more than 20% of FC samples may exceed 400.
10,000 TC
2000 FC
No more than 20% of FC samples may exceed 4000.
10,000 TC
2000 FC
No more than 20% of FC samples may exceed 4000.
(see note)
Note: None of the parameters may be altered, except by
natural causes.
(see note)
Note: Existing natural conditions are not to be changed.
70 FC
Class C
200 FC
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Bacterial Water Quality Standards by EPA Region
Freshwater
Marine
Region State
Class
Primary
Secondary Primary
Secondary
Region 3 Delaware
100 EN
Bathing beaches 1 93 EN
10 EN
35 EN
Comments:
No single freshwater sample may exceed 360 EN. No single
marine sample may exceed 2,212 EN, or 460 EN within one-
half mile of Indian River Inlet
All samples with an excess of 104 EN are re-sampled, with advisories being
based on consecutive samples in excess of the 104 EN criteria. Bathing beaches
criteria are not part of the Delaware water quality standards regulations.
District of
Columbia
Maryland
Public bathing
beach
Other than public bathing beach
200 FC 1000 FC
Does not apply for 24 hr following high
Maximum 30 day geometric for 5 samples.
126 EC 35 EN
33 EN
200 FC 200 FC 200 FC
flow conditions.
200 FC
Pennsylvania
Comments:
Virginia
Comments:
West Virginia
Comments:
No more than 10% of FC samples may exceed 400. Based
on no less than 5 samples taken over a 30-day period.
Bacl
Bac2
200 FC
Swimming season (May 1-September 30). 2000 FC applies
during the rest of the year.
5000 FC
No more than 20% of samples may exceed 5000 FC. No more
than 5% of samples may exceed 20,000 FC. For public water
supplies.
Criteria adopted by the Delaware River Basin Commission (200 FC for the
Delaware River from the Burlington Bristol Bridge to the Pennsylvania /
Delaware line, 770 FC for the Delaware River from the head of tide to the
Burlington Bristol Bridge) apply when they are more stringent than
Pennsylvania's criteria.
126 EC
200 FC
200 FC
35 EN
200 FC
200 FC
Based on two or more samples over a calendar month. No more than 10% of
FC samples taken over a calendar month may exceed 400 FC. No sample may
exceed 1000 FC. FC criteria do not apply after a sampling station has 12 or
more data points for EC or EN, or after June, 2008, whichever comes first.
Single sample maximum based on 75% upper confidence limit and site-specific
log standard deviation. Until sufficient data are acquired 0.4 will be used for
fresh waters, and 0.7 will be used for marine waters (235 EC and 104 EN)
Categories A&C 200 FC
No more than 10% of FC samples may exceed 400.
Ohio River
(Category C)
20J30FC
For nonrecreation season November-April only.
Based on minimum of 5 samples per month
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 4 Alabama
Florida
Georgia
Kentucky
Mississippi
North Carolina
Swimming
200 FC
200 FC
100FC
100 FC
Primary applies year-round. Secondary applies for out of
season (October-May). Out of season mean 2000 FC; 4000
FC sample maximum for freshwater and marine waters.
Fish and Wildlife 200 FC
1000 FC
100 FC
1000 FC
200 FC
200 FC
No more than 10% FC samples may exceed 400; 800 FC on
any one day. 1000 TC maximum for monthly average. No
more than 20% of TC single samples may exceed 1000. 2400
TC maximum on any one day. Based on minimum of 10
samples.
Recreation
Fishing
200 FC
200 FC
100 FC
200 FC
For May through October, primary recreation criteria apply.
All other months, secondary recreation criteria apply with a
4000 FC maximum of any sample.
200 FC
1000FC
200 FC
1000 FC
200 FC
1000FC
For May-October; no more than 20% of FC samples may
exceed 400 and 2000, respectively. Out of season, secondary
contact criteria used for primary waters.
Recreation
200 FC
200 FC
No more than 10% of FC samples may exceed 400.
Fish & Wildlife 200 FC
2000 FC
200 FC
2000 FC
No more than 10% of FC samples may exceed 400. From
November to April, secondary applies and no more than 10%
of FC samples may exceed 4000. ^^
Class SA
(shellfishing)
Class B/SB
(Primary
Recreation,
FreshYTidal Salt)
HFC
Based on median value. No more than 10% of FC samples
may exceed 43 in those areas most probably exposed to fecal
contamination during the most unfavorable hydrographic and
pollution conditions.
200 FC
200 FC
No more than 20% of FC samples may exceed 400.
Class C/SC
(Secondary
Recreation,
FreshYTidal Salt)
200 FC
200 FC
No more than 20% of FC samples may exceed 400.
Violations are expected immediately following periods of
rainfall in segments where uncontrollable nonpoint source
pollution prevents attainment.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 4 South Carolina Class FW/SA 200 FC 200 FC
* '^ No more than 10% of FC samples may exceed 400.
Class SB 200 FC 1000FC
No more than 20% of FC samples may exceed 2000.
Tennessee Recreation 200 FC
126 EC
Based on minimum of 10 samples. No single FC sample may
exceed 1000.
Domestic Water 1000 FC 1000 FC
Supply
Based on a minimum of 10 samples. No single FC sample
may exceed 5000.
Fish & Wildlife 1000 FC 1000 FC
Based on a minimum of 10 samples. No single FC sample
may exceed 5000.
Miccosukee Tribe 1000 TC
of Indians of 200 FC
Florlda No more than 20% of samples may exceed 1000 FC.
No more than 10% of samples may exceed 400 FC.
No sample may exceed 2,400 EC.
Seminole Tribe of 200 FC
No more than 10% of samples may exceed 400 FC.
No sample may exceed 800 FC.
Region 5 Illinois 200 FC
No more than 10% of FC samples may exceed 400.
Lake Michigan 20 FC
Comments: Illinois monitors 99% of its recreational waters using EC.
Indiana 125 EC
For season April through October. No single sample may
exceed 235 EC.
Michigan 130 EC
200 FC
No single sample may exceed 300 EC. May be exceeded if
due to uncontrollable nonpoint sources. Primary standard can
be temporarily suspended due to flood, accident, or
emergencies that affect a sewer or wastewater treatment
system. Can be suspended November 1 -April 30. The criteria
apply, at minimum, May 1 -October 31.
Comments: The EC value is used for ambient monitoring; the FC value is used for assessing
effluent discharges.
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Bacterial Water Quality Standards by EPA Region
Region State
Region 5 Minnesota
(cont'd)
Class
Class A
Class B
Freshwater Marine
Primary Secondary Primary Secondary
200 FC
No more than 10% of FC samples may exceed 400. Criterion
applies only during the March 1 -October 31 season.
200 FC
Ohio
No more than 10% of FC samples may exceed 2000.
Criterion applies only during the March 1-October 31 season.
Lake Erie &
Ohio River Uses
Rest of state
200 FC
126 EC
No more than 10% of FC samples may exceed 400. No
more than 10% of EC samples may exceed 235. Based on
not less than 5 samples taken during any 30-day period.
1000 FC
126 EC
5000 FC
576 EC
Comments;
Wisconsin
Fond du Lac Band
of the Chippewa
Tribe
No more than 10% of FC samples may exceed 2000 and 5000,
respectively. No more lhan 10% of EC samples may exceed
298 [primary] and 576 [secondary].
Both Lake Erie and the Ohio River are designated as bathing waters. For each
designation, at least one of the two bacterial standards (FC or EC) must be met.
These criteria apply outside the mixing zone.
200 FC
No more than 10% of FC samples may exceed 400. Specific
water segments have variances which allow 1 OOP FC.
126 EC
126 EC
When fewer than five samples are collected in a thirty day
period, no sample may exceed 235 EC.
Sokaogon
Chippewa
Community of the
Mole Lake Band of
Chippewa Indians
(See note) (See note)
Criteria are based on either EPA criteria guidance or
ambient concentrations, whichever is more stringent.
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Bacterial Water Quality Standards by EPA Region
Freshwater
Marine
Region State
Class
Primary
Secondary Primary
Secondary
Region 6 Arkansas
200 FC
1000FC
No more than 10% of FC sample may exceed 400 and 2000,
respectively. For extraordinary resource waters, primary
standard always applies; for other waters, primary standard in
effect April 1-September 30. Rest of year, secondary applies.
Louisiana
200 FC
1000 FC
200 FC
1000FC
No more than 10% of FC samples in a 30 day period, or 25%
annually, may exceed 400 for primary contact and 2000 for
secondary contact Primary criteria apply May 1 - October 31.
The rest of the year, secondary criteria apply.
New Mexico
200 FC
1000FC
Comments:
Oklahoma
Comments:
Comments:
No single sample may exceed 400 FC or 2000 FC,
respectively.
Select Segments: 100 FC
No single sample may exceed 200 FC
Surface waters of the state shall be virtually free of pathogens. In particular, surface
waters of the state used for irrigation of table crops such as lettuce shall be virtually
free of salmonella and shingella species.
126 EC
33 EN
200 FC
Narrative
Primary criteria apply May 1 - September 30; rest of year,
secondary criteria apply. No more than 10% of FC samples
may exceed 400. For lakes and high use waterbodies, no
single sample may exceed 235 EC and 61 EN. For all other
waters, no single sample may exceed 406 EC and 108 EN.
Adopted WQS to allow choice of FC. EC, EN.
Texas
126 EC
200 FC
605 EC
2000 FC
35 EN
200 FC
168 EN
2000 FC
No sample may exceed 394 EC for primary contact. No
samples may exceed 400 FC or 89 EN for primary contact and
4000 FC for secondary contact.
Houston Ship Channel 168 EN
No more than 10% of EN samples (if more than 10 samples)
or a single sample (if fewer than 10 samples) may exceed 500,
This criterion applies for two segments of the Houston Ship
Channel.
Texas Department of Health uses most probable number (MPN) methodology;
Texas Commission on Environmental Quality uses membrane filtration (MF)
methodology. FC bacteria can be used as an alternative instream indicator of
recreational suitability until sufficient data are available for EC or EN. For
segments designated as oyster waters, FC can continue to be used as an
indicator of recreational suitability because FC is used as the indicator for
suitability of oyster water use.
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Region
Region 6
(cont'd)
Bacterial Water Quality Standards by EPA Region
Freshwater Marine
State Class Primary Secondary Primary Secondary
Pueblo of Acorn a 1 26 EC
33 EN
200 FC
No sample may exceed 235 EC or 61 EN for Acomita Lake
and high use water bodies and 406 EC or 108 EN for all other
ceremonial and recreational use areas. No more than 10% of
the total samples in any 30-day period may exceed 400 FC.
The criteria for partial body contact is 10 times the criteria
specified for primary contact recreation.
Comments: Compliance for primary contact recreation based on meeting the criteria for one
of the indicators.
Pueblo of Isleta
Primary Contact
Ceremonial
47 EC
100FC
No sample may exceed 200 FC or 88 EC for primary
contact ceremonial and recreational uses.
Pueblo ofNambe
Comments:
200 FC
No sample may exceed 400 FC
No secondary contact recreation use.
Pueblo of Picuris
Comments:
126 EC
200 FC
No sample may exceed 400 FC or 235 EC.
No secondary contact recreation use.
Pueblo of Pojoaque
126 EC
200 FC
No sample may exceed 400 FC or 235 EC.
Comments:
No secondary contact recreation use.
Pueblo of Sandia Ceremonial
100 FC
Recreational
(April 1-
September 30)
(All other times)
100 FC
200 FC
Comments:
No sample may exceed 200 FC for primary contact recreation and primary
contact ceremonial uses, or 400 EC for secondary contact recreation.
Pueblo of San Juan Ceremonial
Recreational
(April 1 -
September 30)
100 FC
47 EC
47 EC
100 FC
200 FC
(All other times):
200 FC
Comments:
No sample may exceed 200 FC or 88 EC for primary contact recreation or
primary contact ceremonial uses, and 400 FC for secondary contact recreation.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 6 Pueblo of Santa 200 FC
(cont'd.) Clara '
Comments: No secondary contact recreation use.
Pueblo of Tesuque 200 FC
No sample may exceed 400 FC.
Comments: No secondary contact recreation use.
Region 7 Iowa 200 FC
Comments: For April 1-October 31 season. Excepted when waters are materially affected by
surface runoff, but FC levels downstream from discharge may not be >200 more
than the background level upstream.
Kansas 200 FC 2000 FC
No sample may exceed 900 FC. Primary contact use applies
April 1-October 31. Secondary criteria applies year-round.
Comments: Classified surface waters may be excluded from the application of the numeric
criteria for fecal coliform when stream flow exceeds 50% of the estimated 2-
year flood flow.
Missouri 200 FC
For periods when the stream or lake is not affected by storm
water runoff. Applies April 1-October 31.
Comments: State applies FC to designated losing streams also, but on a year- round basis.
Nebraska 200 FC
No more than 10% of samples may exceed 400 FC.
Applies May 1-September 30.
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Bacterial Water Quality Standards by EPA Region
Region State
Freshwater
Marine
Class
Primary
Secondary Primary
Secondary
Region 8 Utah
Comments:
Wyoming
Comments;
Montana
Comments:
Class 2A
1000 TC
200 FC
Class 2B
Failure of stream to meet WQS when flow is unusually high
is not a cause for action if discharger is meeting permit
requirements.
5000 TC
200 FC
Although the state has both primary and secondary contact recreation uses, the
same primary contact level of protection is applied to both. The state retained two
use classifications to address safety concerns in designating certain waters as
"swimmable."
200 FC
1000 FC
No more than 10% of FC samples may exceed 400 and 2000, respectively. For
recreational season May 1 -September 30. The geometric mean of 3 samples
collected within a 24 hour period may not exceed 400 FC. All waters of the state
are designated for primary contact. Standards apply throughout the year.
Colorado
Class 1A
Class IB
Class 2
200 FC
126 EC
325 FC
205 EC
2000 FC
630 EC
Comments: Colorado has two categories of primary contact recreation use in addition to
their secondary contact recreation use. The Recreation Class 1 a use is the
default use category. In these waters, primary contact recreation uses have been
documented or are presumed to be present. The Recreation Class Ib use is
intended to protect waters with the potential to support primary contact uses,
and may be assigned only if a reasonable level of inquiry has failed to identify
any existing primary contact recreation uses of the waterbody. The Rec Ib use
category is assigned geometric mean E. coli criteria based on an illness rate of
10 per 1000 swimmers (compared to 8 per 1000 for Class la). Finally, the
Recreation Class 2 use may be assigned only where a use attainability analysis
has demonstrated that there is no reasonable potential for primary contact
recreation uses to occur within the next 20-year period.
Class A
50 FC
Class Al
50 FC
Classes B1.B2,
B3,C1,C2,C3
200 FC
No more than 10% of samples may exceed 400 FC.
Classes A and Al are protected as primary drinking water sources. Criteria for
B and C classes only apply when the water is above 60 degrees F. All waters of
the state are given an A, B, or C classification.
-------
Bacterial Water Quality Standards by EPA Region
Freshwater Marine
Region State Class Primary Secondary Primary Secondary
Region 8 North Dakota 200 FC
(cont'd.)
Only during recreation season May 1-September 30.
Comments: The primary contact standards apply to all waters. The standards note that Class
III waters have limited potential for immersion recreation because of ephemeral
and intermittent flows. Nevertheless, the standards'apply.
South Dakota 200 FC 1000 FC
No sample may exceed 400 FC for primary contact
recreation and 2000 FC for secondary contact recreation.
No more than 20% of samples may exceed 200 FC for
primary contact recreation and 1000 FC for secondary
contact recreation.
Comments: The primary and secondary contact standards apply May 1-September 30.
Assiniboine and 126 EC 126 EC
Sioux Tribes of the 200 FC 200 FC
Fort Peck Indian
. ~, j of the total samples during a 30-day period cannot
Reservation exceed 40Q pc NQ s&mplc may exceed 235 EC for primary
contact recreation and 406 EC for secondary contact
recreation.
Comments: The recreational standards apply when the water temperature exceeds 15.5
degrees C. The only difference in the level of protection between primary and
secondary is the single sample maximum for EC.
Confederated
Kootenai Tribes of Class A - closed
the Flathead basin
Reservation Class M
200 FC
50 TC
50 TC
200 FC
50 TC
50 TC
10% of the total samples during a 30-day period cannot
exceed 400 FC.
Comments: All waters of the Reservation are designated for primary contact recreation. One
element of the Class A use is primary contact recreation.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 9 Arizona
California
126 EC 1261 EC
Single sample maximum is 235 for full body contact and
576 for partial body contact.
North Coastal 50 FC 50 FC
No more than 10% of FC samples may exceed 400.
San Francisco 126ECf 2000 FC 35 EN 2000 FC
Bay 33EN| 200 FC
Regional Board 2 200 FC 240 TC
240 TC
Marine waters: No sample may exceed 104 - 500 EN based
on frequency of use. Fresh waters: No sample may exceed
61-151 EN or 235-576 EC based on frequency of use. No
sample may exceed 4000 FC for secondary contact. No
more than 10% of FC samples may exceed 400.
No sample to exceed 10,000 TC.
Central Coast 200 FC 2000 FC 200 FC 2000 FC
Regional Board 3 NQ mQre ^ }Q% Qf pc samples may exceed 40Q for
water contact recreation (REC-1) or 4000 for non-contact
water recreation (REC-2).
Los Angeles 126 EC 2000 FC 35 EN 2000 FC
Regional Board 4 200 FC 200 FC
1000TC
Marine: single sample maximum is 400 FC, 10,000 TC, and
104 EN.
Fresh: single sample maximum is 235 EC and 400 FC.
Central Valley 126 EC
Regional Board 5 """.""" j '.' '.""""'""'"
Single sample maximum is 235 EC.
FolsomLake 100FC
/In fantral ...................
^1H IsCIllTal ...-
Valley) No more ^^ 10% °f samples may exceed 200 FC.
Lahontan 20 FC
.»!> 11 l***+++**«*»********<*>ll***««*l»l»******>****«**<*44**»««ttlf »"«--"'««"»
* *** ***......*** I*..........*....*......,,.,....
No more than 10% of FC samples may exceed 40.
No more than 10% of FC samples may exceed 75 for the
Eagle Drainage Hydrologic Area. A log mean concentration
exceeding 20/100 mi for any 30-day period shall indicate
violation of this objective even if fewer than five samples
were collected.
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Bacterial Water Quality Standards by EPA Region
Freshwater
Marine
Region
Region 9
(cont'd)
State
California
(continued)
Class
Colorado River
Basin
Regional Board 7
Primary
126 EC
33 EN
200 FC
Secondary
630 EC
165 EN
Primary
Secondary
No sample may exceed 100 EN and 400 EC for primary
contact and 500 EN and 2000 EC for secondary contact.
For the Colorado River, no sample may exceed 61 EN and
23 5 EC for freshwater primary contact For secondary contact,
no sample may exceed 305 EN and 1175 EC.
No more than 10% of FC samples may exceed 400. Also
maximum limits for EN and EC vary by level of use.
Santa Ana
Regional Board 8
200 FC
2000 FC
200 FC
2000 FC
No more than 10% of FC samples may exceed 400 for
primary contact and 4000 for secondary contact; 100 TC
maximum in lakes and streams designated as domestic water
supply. The marine water criteria also apply to bays and
estuaries.
San Diego 126 EC
Regional Board 9 33 EN
200 FC
2000 FC 35 EN
200 FC
2000 FC
Comments:
Hawaii
Comments:
For fresh water, no more than 10% of samples may exceed
400 FC for primary contact and 4000 FC for secondary
contact. Single sample maximum ranges from 61 EN -151
EN and 235 EC - 576 EC for fresh waters and 104 EN - 500
EN for marine waters based on frequency of use.
Ocean Plan 24 EN for 30 day period
12 EN for 6 month period
200 FC
1000 TC
No more than 20% of TC samples may exceed 1000 in bays
and estuaries. No more than 10% of FC samples may
exceed 400.
Essentially all California waters are designated for primary contact recreation
with the exception of the Colorado River Basin Region.
200 FC
7 EN
Inland: based on minimum of 10 samples. No more than
10% of FC samples may exceed 400. Marine: based on
minimum of 5 samples.
Revisions pending for fresh waters and marine waters.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater
Primary Secondary
Marine
Primary Secondary
Region 9
(cont'd.)
Nevada
Comments:
American Samoa
Comments:
Class A and B 200 FC
No more than 10% of FC samples may exceed 400.
Class C (includes
noncontact
recreation)
FC may not exceed the more stringent of;
1) The FC concentration must not exceed 1000 nor may
more than 20% of total samples exceed 2400.
2) The FC concentration must not exceed that which is
characteristic of natural conditions by more than 200, nor
may the FC concentration in a single sample exceed that
which is characteristic of natural conditions by more than
400.
Waters not listed
below
200 FC
1000 FC
More stringent of the following:
For 1000 FC, no more than 20% of samples may exceed 2400
FC. Annual geometric mean FC concentration may not exceed
characteristics of natural conditions by more than 200 FC, nor
400 FC in a single sample. For primary, no more than 10% of
FC samples may exceed 400.
Lake Tahoe and 126 EC
Tributaries and
Humboldt River
Basin, Walker Lake Tahoe Basin also has FC limits between 5 and 32
River, and Walker (median) for offshore and undeveloped lake shore.
Lake Humboldt River Basin has single value of 406 EC.
Nevada adopts water quality standards on a water body specific basis. The state
is in the process of replacing waters with FC criteria with EC criteria as
revisions are made basin-by-basin.
100FC
35 EN
No more than 10% of samples may exceed 200 FC. For
Open Ocean, no sample may exceed 276 EN. For Open
Coastal Waters and all Embayments except Pago Harbor,
Fagatele Bay, and Pala Lagoon, no sample may exceed 124
EN. For Pago Harbor, Fagatele Bay, and Pala Lagoon, no
sample may exceed 104 EN.
Revisions pending for fresh waters.
Common wealth of All waters
the Northern
Mariana Islands
200 FC 200 FC
No FC samples may exceed 400 at any time.
Class AA
35 EN
Class 1
125 EC
33 EN
Class A
125 EN
Class 2
300 EC
90 EN
Comments:
All Mariana Islands standards based on a minimum of 5 samples.
One element of the Class A use is limited body contact.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 9 Guam
(cont'd)
S1/S2 Fresh
Waters
126 EC
33 EN
No sample may exceed 235 EC or 61 EN. Values based on
arithmetic mean.
S3 Fresh Waters 126 EC
33 EN
M1/M2 Marine
Waters
M3 Marine
Waters
Values based on arithmetic mean. No sample may exceed 406
EC. No sample may exceed 108 EN.
35 EN
No sample may exceed 104 EN.
35 EN
No sample may exceed 276 EN.
Comments;
All waters are designated for contact recreation.
Hoopa Vallev
Tribe
White Mountain
Apache Tribe
126 EC
33 EN
47 EC
1000FC
2000 FC
with 10%
No sample may exceed 88 EC for primary contact and 4000
EC for secondary contact.
Comments; Primary contact recreation criteria apply May 1 - September 30, secondary contact
recreation criteria apply October 1 - April 30.
Region 10 Alaska
100FC
200 FC
100FC
200 FC
Comments;
No more than 1 sample, or 10% of the samples if there are
more than 10 samples, may exceed 200 FC and 400 FC for
both freshwater and marine, primary and secondary,
respectively.
Alaska designates all waters for all uses, and the most stringent criteria must be
used. Therefore, for freshwater, the drinking water use criterion of 20 FC usually
drives most NPDES permit actions, 303(d) listings, and TMDL development. For
marine waters, the most stringent bacterial criterion is for the seafood processing
use - 20 FC (no more than 10% of the samples may exceed 40 FC). Even though
Alaska has 100 FC/200 FC as its recreation criteria, more stringent criteria for other
use categories take precedence.
Idaho
126 EC
126 EC
Primary levels apply during season May 1-September 30 for
primary only; secondary applies all other times. No sample
may exceed 406 EC for primary contact recreation and 576
EC for secondary contact recreation.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 10 Oregon 126 EC 14FC
No freshwater single sample may exceed 406 EC. No more
than 10% of FC marine samples may exceed 43. For estuarine
waters other than shellfish growing, same criterion as
freshwater criterion. For estuarine waters with shellfish, same
criterion as marine.
Washington Class AA 50 FC HFC
t. "**}) ^Q more fl^ JQ% of FC samples may exceed 100 and 43,
respectively.
Class A 100 FC HFC
(excellent) NQ more ^^ 1Q% Qf pc samples ^ exceed 2QQ md ^
respectively.
Class B (good) 200 FC 100 FC
No more than 10% of FC samples may exceed 400 and 200,
respectively. Only designated for secondary contact.
Class C (fair) 200 FC
No more than 10% of FC samples may exceed 400. Only
designated for secondary contact.
Lake Class 50 FC
No more than 10% of samples may exceed 100 FC.
Confederated Class AA 50 FC 14FC
Tribes of the (extraordinary) "'" '"' V, "T JV j T-T
_. . ,. No more than 10% of FC samples may exceed 100 and 43,
Chehahs .. . v i
_ ,, respectively.
Reservation
Class A 100FC 14FC
(excellent) NQ more ^ } Q% Qf pc ^^^ ^y exceed 2QO and 43,
respectively.
Class B (good) 200 FC 100 FC
No more than 10% of FC samples may exceed 400 and 200,
respectively. Only designated for secondary contact.
Class C (fair) 200 FC
No more than 10% of FC samples may exceed 400. Only
designated for secondary contact.
Lake Class 50 FC
No more than 10% of samples may exceed 100 FC.
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Bacterial Water Quality Standards by EPA Region
Region State
Class
Freshwater Marine
Primary Secondary Primary Secondary
Region 10 Confederated Class I 8 EN
(cont'd) Tribes of the (extraordinary) "": ; "Ti'e'm.7
v ' J/ No sample may exceed 3 5 EN.
V»O|VIIIc ,^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^_^^_^^^_^^^^^^^^^^^^^^^^^^^_^_^^^^^^^^^-^^^^^^^^^^I^___^^^_
Reservation Class II 16 EN
No sample may exceed 75 EN.
Class III (good) 33 EN
No sample may exceed 150 EN.
Only designated for secondary contact
Lake Class 33 EN
No sample may exceed 150 EN.
Confederated 126 EC
Tribes of the
Warm Springs NO sample may exceed 406 EC.
Reservation
Comments.- Standards are for public and private domestic water supply, water contact
recreation, wildlife and hunting, fishing, and boating/recreation.
Confederated 126 EC
Tribes of the
Umatiila No sample may exceed 406 EC.
Reservation
Puyallup Tribe of Class AA 50 FC 14FC
thePuyallup (extraordinary) -
Reservation ^° more th811 10% OI" FC samples may exceed 100 and 43,
respectively.
Class A 100 FC 14 FC
^ ' ce e ' No more than 10% of FC samples may exceed 200 and 43,
respectively.
Class B (good) 200 FC 100 FC
No more than 10% of FC samples may exceed 400 and 200,
respectively. Only designated for secondary contact.
Class C (fair) 200 FC
No more than 10% of FC samples may exceed 400. Only
designated for secondary contact.
Lake Class 50 FC
No more than 10% of samples may exceed 100 FC.
Spokane Tribe of 126 EC
No more than 10% of samples may exceed 406 EC. This
applies to single samples if less than 10 samples are taken.
Sources: U.S. Environmental Protection Agency, Regional Offices and Office of Science and Technology, Standards
and Health Protection Division.
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