Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0950650
PWS Name	WILLIAMSFIELD
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	575
County Served	Knox

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7137113	Known	01-JAN-2025	31-DEC-2025	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7137112	Returned to Compliance	17-OCT-2024	-	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7137106	Returned to Compliance	11-FEB-2006	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7137006	Returned to Compliance	11-FEB-2006	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7136704	Returned to Compliance	01-JUL-2004	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7136805	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4425899	Known	01-JAN-1999	31-JAN-1999	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4300099	Known	01-DEC-1998	31-DEC-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4299899	Known	01-DEC-1998	31-DEC-1998	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4299999	Known	01-NOV-1998	30-NOV-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4299799	Known	01-NOV-1998	30-NOV-1998	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3973898	Returned to Compliance	01-OCT-1997	31-DEC-1997	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1577892	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1577792	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1577692	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1577592	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1577492	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1577392	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1577292	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1577192	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1577092	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1576992	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1576892	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1576792	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1576692	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1576592	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1576492	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1576392	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2119492	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	254085	Returned to Compliance	01-JUL-1985	30-JUN-1988	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	253982	Known	01-JUL-1982	30-JUN-1985	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7136580	Known	30-JUN-1977	29-JUN-1981	No

1 - 32 of 32

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
7871911	7137113	SIE	State Public Notification requested	14-OCT-2025	State	-
7871912	7137112	SOX	State Compliance achieved	21-AUG-2025	State	-
7871906	7137006	SFK	State Bilateral Compliance Agreement signed	26-JUL-2006	State	VN # W-2006-00165 dated 5/15/06
7871906	7137106	SFK	State Bilateral Compliance Agreement signed	26-JUL-2006	State	VN # W-2006-00165 dated 5/15/06
7871806	7136805	SIF	State Public Notification received	11-JUL-2006	State	-
7870805	7136704	SOX	State Compliance achieved	21-OCT-2004	State	-
7870399	4425899	SIE	State Public Notification requested	15-MAR-1999	State	-
7870199	4299899	SIE	State Public Notification requested	15-FEB-1999	State	-
7870199	4300099	SIE	State Public Notification requested	15-FEB-1999	State	-
7869999	4299799	SIE	State Public Notification requested	15-JAN-1999	State	-
7869999	4299999	SIE	State Public Notification requested	15-JAN-1999	State	-
7142998	3973898	SIF	State Public Notification received	03-MAR-1998	State	-
1930293	1576392	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	2119492	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576492	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576592	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576692	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576792	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576892	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1576992	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577092	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577192	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577292	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577392	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577492	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577592	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577692	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577792	SOX	State Compliance achieved	06-MAY-1993	State	-
1930293	1577892	SOX	State Compliance achieved	06-MAY-1993	State	-
1005485	254085	SOX	State Compliance achieved	14-NOV-1985	State	-
382	253982	SIF	State Public Notification received	30-SEP-1982	State	-

1 - 31 of 31

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2 (55013)	22214	Yes	Well	Ground water	Permanent	Active
WELL 3 (55014)	22215	Yes	Well	Ground water	Permanent	Active
WILLIAMSFIELD	24115	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46610	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46611	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27774	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30196	No	Sampling Station	-	-	Active
ELEV1 - 0.1 MG ELEVATED STORAGE	11343	No	Storage	-	-	Active
GRD1 - 8K GAL GROUND STORAGE	12252	No	Storage	-	-	Active
TP 01-RO PLANT	15967	No	Treatment Plant	-	-	Active

1 - 10 of 10

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-RO PLANT	15967	Aeration, Slat Tray	Taste / odor control
TP 01-RO PLANT	15967	Reverse Osmosis	Inorganics removal
TP 01-RO PLANT	15967	Fluoridation	Other
TP 01-RO PLANT	15967	Hypochlorination, Post	Disinfection
TP 01-RO PLANT	15967	Innovative	Other
TP 01-RO PLANT	15967	pH Adjustment, Pre	Inorganics removal
TP 01-RO PLANT	15967	pH Adjustment, Post	Corrosion control

1 - 7 of 7

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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