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FY 1983 STATUS REPORT
The Notional Public Water System Program
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Prepared by
The Office of Drinking Water
U.S.Envinonmental Protection Agency
April 1984
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FEDFRAL REGULATORY REQUIREMENT
A TOTAL OF 57 STATES OR TERRITORIES ARE ACCOUNTABLE UNITS UNDER
THE FEDERAL DRINKING WATER PROGRAM:
0 52 STATES HAVE PRIMARY ENFORCEMENT RESPONSIBILITY (PRIMACY)
0 5 PROGRAMS ARE BEING ADMINISTEREP BY EPA REGIONAL OFFICES
(REGIONAL PRIMACY).
MCL'S
MAXIMUM CONTAMINANT LEVELS (MCL's) FOR MICROBIOLOGICAL CONTAMINANTS,,
TURBIDITY, AND CHEMICAL CONTAMINANTS INCLUDE OVER TWENTY SPECIFIC
CHEMICAL, RADIOLOGICAL ELEMENTS OR ORGANISMS WHICH ARE UNDESIRABLE
IN DRINKING WATER.
M/R
IN ORDER TO ENSURE THAT DRINKING WATER IS SAFE, THERE IS REQUIRED
MONITORING AND REPORTING (M/R) FOR EACH OF THESE MCL's AT A SPECI-
FIED FREQUENCY ACCORDING TO THE CHARACTERISTICS OF THE PUBLIC WATER
SYSTEM (PWS).
FRDS
ON AN ANNUAL BASIS, THE STATES AND EPA REGIONAL OFFICES ARE
REQUIRED TO FORWARD TO FPA's OFFICE OF DRINKING WATER STATUS
REPORTS WHICH INDICATE HOW SUCCESSFULLY REGULATORY REQUIREMENTS
WERE MET- THESE DATA ARE STORED IN THE FEDERAL REPORTING DATA
SYSTEM.
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PUBLIC WATER SUPPLY IN U.S.
THERE ARE APPROXIMATELY 216,800 WATER SYSTEMS UNDER FEDERAL
JURISDICTION-
0 OF THESE., 277- (58,700) SERVE PRIMARILY RESIDENTIAL
SERVICE AREAS (COMMUNITY WATER SYSTEMS) AND 737 SERVE
PRIMARILY TRANSIENTS (NoN-COMMUNITY WATER SYSTEMS).
0 OF THE COMMUNITY PUBLIC WATER SYSTEMS,
- SURFACE WATER IS THE PRIMARY SOURCE OF 18.8* OF
THE SYSTEMS, AND SERVES 65.67 OF THE POPULATION;
- GROUND WATER SERVES 81.27, OF THE SYSTEMS AND
3*M7 OF THE POPULATION.
0 OF THE NON-COMMUNITY SYSTEMS 967 ARE SERVED BY GROUND-
WATER SOURCES.
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Public Water Supply in Nation
FY1983
Total
216,800
Community
58.700(27.1%)
Non-community
158.100(72.9%)
PWS
surface water
11,000(18.8%)
ground water
47,700(81.2%)
surface water
6.300(4%)
ground water
151800(96%)
population served
surface water (65.6%)
ground water (344%)
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SYSTEM Sf/F CATFGORIFS
SIZF
VFRY SMAI.I
SMA1.I.
MFJHUM
LARGF
VFRY LARGF
POPULATION SFRVFn
25 - 500
501 - 3,300
3,301 ~ 10,000
10,001 - 100,000
GREATER THAN 100,000
NOTE: FOR PURPOSES OF THIS ANALYSIS, THE SYSTEMS ARE DIVIDED INTO FIVE
SIZE CATEGORIES. THE BREAK AT 3,300 IS BASED ON THE REQUIREMENT FOR
MICROBIOLOGICAL MONITORING " SYSTEMS SAMPLE MONTHLY AND DETERMINE
COMPLIANCE QUARTERLY, BASED ON THREE MONTHS OF SAMPLING (STATES MAY
REQUIRE BOTH MONTHLY MONITORING AND COMPLIANCE DETERMINATION).
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SIZE DISTRIBUTION OF CWS'S
OF THE 58,700 COMMUNITY SYSTFHS,
0 64. 4T OF THE SYSTEMS SERVE LESS THAN 2*67 OF THE
POPULATION;
0 ABOUT 0.5% OF THE SYSTEMS SERVE MORE THAN
THE POPULATION.
OF
AS WE HAVE REALIZED FROM THE BEGINNING, THERE ARE SIGNIFICANT
NUMBERS OF SMALL AND VERY SMALL SYSTEMS, AND THE PROBLEMS
EXPERIENCED BY THESE PLACE A REAL DEMAND ON THE RESOURCES
OF THE PRIMACY AGENTS.
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Size Distribution of CWS's
FY 1983
Percent Distribution
Sizt Category
Numbtrof
CO Numb«r *f CWS'»
37,813 13,915 3,943 ^770 277 5a,718CTo*a|)
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TYPF OF Vim ATIONS
PERSISTENT :
IHTFRMITTFNT :
L* OR MORE MONTHS IN VIOLATION OR MORE THAN
1 QUARTER IN VIOLATION:
3 OR FEWER MONTHS IN VIOLATION OR
1 QUARTER IN VIOLATION.
NOTE: THIS ANALYSIS PRESENTS VIOLATIONS IN TERMS OF DURATION-
WE ARE MORE CONCERNED WITH PERSISTENT VIOLATORS — 4 OR
MORE MONTHS, OR MORE THAN 1 QUARTER, AND WE ARE DIFFER-
ENTIATING BETWEEN SYSTEMS WITH RECURRING OR CHRONIC VIOLATIONS
AND SYSTEMS WITH INTERMITTENT OR SHORT-TERM VIOLATIONS-
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NATIONAL MICROBIOLOGICAL COMPLIANCE
VERIFICATION OF THE REPORTS SUBMITTED BY THE STATES HAS BEEN OCCURRING
FOR THE LAST TWO YEARS. THE VERIFICATION EFFORT HAS HELPED THE STATES TO
IMPROVE THEIR DATA MANAGEMENT SYSTEMS AND TO IMPROVE THE QUALITY OF THE
REPORTS. THE IMPROVED REPORTING HAS RESULTED IK AN APPARENT INCREASE IN
VIOLATION RATES; THIS MAY NOT HAVE BEEN AN INCREASE IN ACTUAL VIOLATIONS BUT
ONLY AN INCREASE IN REPORTED VIOLATIONS-
IN FY 1981, 70.2% OF THE SYSTEMS WERE REPORTED IN COMPLIANCE; 19.8% WERE
INTERMITTENT VIOLATORS AND 10-0% WERE PERSISTENT VIOLATORS-
IN FY 1982, 69-9% OF THE SYSTEMS WERE REPORTED IN COMPLIANCE; 20-3% WERE
INTERMITTENT VIOLATORS AND 9-8% WERE PERSISTENT VIOLATORS-
IN FY. 1983, 70.7% OF THE SYSTEMS WERE REPORTED IN COMPLIANCE; 20.5% WERE
INTERMITTENT VIOLATORS AND 8-8% WERE PERSISTENT VIOLATORS.
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Notional Microbiological Compliance
MCL&M/fc
FY1981-FY1983
KZl Intermittent
Full Compflanof
FY19B1
FY1982
FY1983
9.8%
8.8%
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NATIONAL MICROBIOLOGICAL MCL COMPLIANCF
IN FY 1981, 91.57 OF THE SYSTEMS REPORTEDLY MET THE MCL REQUIREMENTS;
7»6 Z WERE INTERMITTENT VIOLATORS OF THE MCL AND 0-9 % WERE PERSISTENT
VIOLATORS OF THE MCL-
IN FY 1982, 90.1? OF THE SYSTEMS MET THE MCL REQUIREMENTS; 8.6* WERE
INTERMITTENT VIOLATORS OF THE MCL AND 1•3% WERE PERSISTENT VIOLATORS OF THE
MCL.
IN FY 1983, 901 OF THE SYSTEMS MET THE MCL REQUIREMENTS; 8.6? WERE
INTERMITTENT VIOLATORS OF THE MCL AND 1-4% WERE PERSISTENT VIOLATORS OF THE
MCL.
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Notional Microbiological Compliance
Ma
FY1981-FY1983
Bi Pmtetont
E3 Full Compflanc*
FY19B1
FY19B2
FY1983
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NATIONAL MICROBIOLOGICAL MONITORING COMPLIANCE
IN FY 1981, 75-4% OF THE SYSTEMS REPORTEDLY MET ALL THE M/R REQUIREMENTS;
16.3% WERE INTERMITTENT VIOLATORS AND 8-3% WERE PERSISTENT VIOLATORS-
IN FY 1982, 75.6% OF THE SYSTEMS REPORTEDLY MET ALL THE M/R REQUIREMENTS;
16.8% WERE INTERMITTENT VIOLATORS AND 7-6% WERE PERSISTENT VIOLATORS-
IN FY 1983, 76.6% OF THE SYSTEMS REPORTEDLY MET ALL THE MONITORING
AND REPORTING REQUIREMENTS.
° 6.8% OF THE SYSTEMS WERE PERSISTENT VIOLATORS;
° 16.6% OF THE SYSTEMS WERE INTERMITTENT VIOLATORS.
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NoHonal Microbiological Compliance
Monitoring (M/ft)
FY1981-FY1983
E23 Intermittent
CS Pwslitent
KS Full Compliance
FY19B1
FY19B2
6.3%
FY1983
6.8%
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NATIONAL TURBIDITY COMPLIANCE
IN FY 1981, 86-1% OF THE SURFACE SYSTEMS REPORTEDLY MET THE REQUIREMENTS.
6.97 WERE INTERMITTENT VIOLATORS AND 7-0% WERE PERSISTENT VIOLATORS-
IN FY 1982, 83.7% OF THE SURFACE SYSTEMS MET THE REQUIREMENTS. 4.77 WERE
INTERMITTENT VIOLATORS AND ll.fi% WERE PERSISTENT VIOLATORS.
IN FY 1983, 89.5% OF THE SURFACE SYSTEMS MET THE REQUIREMENTS. 6-J% WERE
INTERMITTENT VIOLATORS AND 4-4% WERE PERSISTENT VIOLATORS-
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National Turbidity Compliance
FY1981-FY1983
In !• militant
^^M^I^4iM4bA
rvrwvrvfn
full Cempn«nc«
FY1981
FY1982
nrwas
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NATIONAL TURBIDITY MCL COMPLIANCE
IN FY 1981, 95.IT OF THE SYSTEMS REPORTEDLY MET THE MCL REQUIREMENTS;
3«1Z OF THE SYSTEMS WERE INTERMITTENT VIOLATORS AND 1«8/K WERE PERSISTENT VIOLATORS
IN FY 1982, 96.H* OF THE SYSTEMS REPORTEDLY MET THF MCL REQUIREMENT; 2-21 OF
THE SYSTEMS WERE INTERMITTENT VIOLATORS; AND L4* OF THE SYSTEMS WERE PERSISTENT
VIOLATORS.
IN FY 1983, 97X OF THE SYSTEMS REPORTFDLY MET THE MCL REQUIREMENTS.
0 LIT OF THE SYSTEMS WERE INTERMITTENT VIOLATORS;
0 L9Z OF THE SYSTEMS WERE PERSISTENT VIOLATORS-
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National Turbidity Compliance
MCL
FY1981-FY1983
full CompManec
1981
1982
1983
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NATIONAL TURBIDITY MONITORING COMPLIANCE
IN FY 1981, 89-85! OF THE SYSTEMS REPORTEDLY MET THE M/R REQUIREMENTS;
4.9% OF THE SYSTEMS WERE INTERMITTENT VIOLATORS AND 5•37 WERE PERSISTENT VIOLATORS
IN FY 1982, 8fi.3% OF THE SYSTEMS REPORTEDLY MET THE M/R REQUIREMENT; 3-52 OF
THE SYSTEMS WERE INTERMITTENT VIOLATORS; AND 10.2% OF THE SYSTEMS WERE PERSISTENT
VIOLATORS.
IN FY 1983, 91.9? OF THE SYSTEMS REPORTEDLY MET THE M/R REQUIREMENTS.
0 3«1% OF THE SYSTEMS WERE INTERMITTENT VIOLATORS;
° 5.0? OF THE SYSTEMS WERE PERSISTENT VIOLATORS.
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