Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5362675
PWS Name	OAK PARK
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	695
County Served	Mason

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, Regular	Nitrate Rule	Nitrate	2583851	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2583789	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2288540	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2288539	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2282666	Returned to Compliance	01-JUN-2018	30-JUN-2018	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	13171392378	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	13171392984	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	13171402378	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	13171392996	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	13171402996	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	13171402992	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	13171392992	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	13171402991	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	13171392991	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	13171392990	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	13171402990	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	13171392989	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	13171402989	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	13171402987	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	13171392987	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	13171392985	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	13171402985	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	13171402380	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	13171402984	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	13171392983	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	13171402983	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	13171392982	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	13171402982	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	13171392981	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	13171402981	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	13171392980	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	13171402980	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	13171392979	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	13171402979	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	13171402977	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	13171392977	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	13171392976	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	13171402976	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	13171392969	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	13171402969	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	13171392968	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	13171402968	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	13171402964	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	13171392964	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	13171392380	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0099999	Returned to Compliance	19-OCT-1999	31-DEC-1999	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9601464	Known	01-OCT-1995	31-OCT-1995	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9593001	Returned to Compliance	01-JUL-1995	01-JAN-1999	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9350484	Known	01-MAY-1993	31-MAY-1993	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9302030	Known	01-OCT-1992	31-OCT-1992	No

1 - 50 of 60

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2788539ENF	2288539	SOX	State Compliance achieved	18-DEC-2023	State	-
2788540ENF	2288540	SOX	State Compliance achieved	18-DEC-2023	State	-
2282666ENF	2282666	SOX	State Compliance achieved	17-JUL-2018	State	-
1417139ENF	13171392992	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402996	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402992	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402991	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402990	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402989	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392378	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392380	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392964	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392968	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392969	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392976	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392977	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392979	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392980	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392981	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392982	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392983	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392984	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392985	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392987	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392989	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392990	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392991	SOX	State Compliance achieved	14-NOV-2016	State	-
1417139ENF	13171392996	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402378	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402380	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402964	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402968	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402969	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402976	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402977	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402979	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402980	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402981	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402982	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402983	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402984	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402985	SOX	State Compliance achieved	14-NOV-2016	State	-
1417140ENF	13171402987	SOX	State Compliance achieved	14-NOV-2016	State	-
0099999	0099999	EOX	Federal Compliance achieved	31-DEC-1999	ODSWeb	-
9993001	9593001	SOX	State Compliance achieved	01-JAN-1999	State	-
9600071	9601464	SIA	State Violation/Reminder Notice	31-OCT-1995	State	-
9301969	9350484	SIA	State Violation/Reminder Notice	31-MAY-1993	State	-
9326074	9302030	SIA	State Violation/Reminder Notice	31-OCT-1992	State	-
9241628	9201250	SIA	State Violation/Reminder Notice	29-FEB-1992	State	-

1 - 49 of 49

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL A ABS092	21576	Yes	Well	Ground water	Permanent	Active
WELL B ABS093	21577	Yes	Well	Ground water	Permanent	Active

1 - 2 of 2

Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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