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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.

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Violations

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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)	7173823	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7173822	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7173820	Returned to Compliance	01-MAR-2021	31-MAR-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7173821	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7173809	Returned to Compliance	01-JUL-2018	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7173808	Returned to Compliance	01-JUL-2012	31-JUL-2012	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	3570096	Known	01-JUN-1996	30-JUN-1996	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3569996	Known	01-JUN-1996	30-JUN-1996	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3414896	Known	01-MAR-1996	31-MAR-1996	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2368393	Returned to Compliance	01-APR-1993	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1704693	Known	01-NOV-1992	30-NOV-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7173180	Known	30-JUN-1977	29-JUN-1981	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6283824	7173823	SIF	State Public Notification received	02-JUL-2025	State	-
6283824	7173822	SIF	State Public Notification received	02-JUL-2025	State	-
6283820	7173820	SIF	State Public Notification received	16-NOV-2021	State	-
6283819	7173821	SIF	State Public Notification received	16-NOV-2021	State	-
6283813	7173809	SOX	State Compliance achieved	30-JUL-2018	State	-
6283810	7173808	SIF	State Public Notification received	12-SEP-2012	State	-
5874696	3569996	SIE	State Public Notification requested	07-SEP-1996	State	-
5874696	3570096	SIE	State Public Notification requested	07-SEP-1996	State	-
2923694	2368393	SOX	State Compliance achieved	26-JAN-1994	State	-
1843093	1704693	SIE	State Public Notification requested	16-JAN-1993	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 06-ENTRY POINT FROM TINLEY PARK	33418	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL 2 (20388) ABANDONED	20100	Yes	Well	Ground water	Other	Inactive
WELL 1A (20387) ABANDONED	20099	Yes	Well	Ground water	Other	Inactive
WELL 3 (20389) EMERGENCY	20101	Yes	Well	Ground water	Emergency	Active
WELL 5 (01080) EMERGENCY	18876	Yes	Well	Ground water	Emergency	Active
WELL 4 (00152) EMERGENCY	17991	Yes	Well	Ground water	Emergency	Active
MOKENA	25281	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45930	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45932	No	Distribution System/Zone	-	-	Active
PF07 FRANCIS ROAD PUMP STATION	34705	No	Pump Facility	-	-	Active
PF08 187TH STREET PUMP STATION	39686	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	28940	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31362	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11881	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	34702	No	Storage	-	-	Active
DISTRIBUTION STANDPIPE STORAGE	34703	No	Storage	-	-	Inactive
TP 05-DISCH TO DIST FROM WELL 5	17576	No	Treatment Plant	-	-	Active
TP 03-WELL 4 (EMERGENCY)	17579	No	Treatment Plant	-	-	Active
TP 04-WELL 3 (EMERGENCY)	17580	No	Treatment Plant	-	-	Active
TP06-MAIN PUMP STATION	34704	No	Treatment Plant	-	-	Active
TP 01-WELL 1A (ABANDONED)	17577	No	Treatment Plant	-	-	Inactive
TP 02-WELL 2 (WELL #2 SEALED)	17578	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 05-DISCH TO DIST FROM WELL 5	17576	Gaseous Chlorination, Pre	Disinfection
TP 05-DISCH TO DIST FROM WELL 5	17576	Gaseous Chlorination, Pre	Iron removal
TP 05-DISCH TO DIST FROM WELL 5	17576	Fluoridation	Other
TP 05-DISCH TO DIST FROM WELL 5	17576	Inhibitor, Polyphosphate	Corrosion control
TP 02-WELL 2 (WELL #2 SEALED)	17578	Fluoridation	Other
TP 02-WELL 2 (WELL #2 SEALED)	17578	Gaseous Chlorination, Pre	Disinfection
TP 02-WELL 2 (WELL #2 SEALED)	17578	Fluoridation	Disinfection
TP 02-WELL 2 (WELL #2 SEALED)	17578	Gaseous Chlorination, Pre	Iron removal
TP 02-WELL 2 (WELL #2 SEALED)	17578	Sequestration	Iron removal
TP 03-WELL 4 (EMERGENCY)	17579	Fluoridation	Other
TP 03-WELL 4 (EMERGENCY)	17579	Gaseous Chlorination, Pre	Disinfection
TP 03-WELL 4 (EMERGENCY)	17579	Fluoridation	Disinfection
TP 03-WELL 4 (EMERGENCY)	17579	Gaseous Chlorination, Pre	Iron removal
TP 03-WELL 4 (EMERGENCY)	17579	Sequestration	Iron removal
TP 04-WELL 3 (EMERGENCY)	17580	Fluoridation	Other
TP 04-WELL 3 (EMERGENCY)	17580	Gaseous Chlorination, Pre	Disinfection
TP 04-WELL 3 (EMERGENCY)	17580	Fluoridation	Disinfection
TP 04-WELL 3 (EMERGENCY)	17580	Gaseous Chlorination, Pre	Iron removal
TP 04-WELL 3 (EMERGENCY)	17580	Sequestration	Iron removal
TP06-MAIN PUMP STATION	34704	Gaseous Chlorination, Pre	Disinfection

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