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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
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3516	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3515	Returned to Compliance	01-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3510	Returned to Compliance	01-SEP-2011	30-SEP-2011	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Barium	3309	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	3509	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	2907	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	3107	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	3207	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	2807	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	3007	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	902	Returned to Compliance	01-JAN-2002	31-MAR-2002	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	802	Returned to Compliance	01-JAN-2002	31-MAR-2002	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	502	Returned to Compliance	01-OCT-2001	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	301	Returned to Compliance	01-OCT-2000	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	200	Returned to Compliance	19-JAN-2000	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	381	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	881	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	981	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	481	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	681	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	181	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	781	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	281	Known	01-OCT-1980	30-SEP-1981	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	6023880	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	6023980	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	6023480	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6023180	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	6023780	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	6023580	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6023380	Known	01-OCT-1979	31-OCT-1979	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	6023280	Known	01-OCT-1979	31-OCT-1979	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
592529	3516	SOX	State Compliance achieved	21-OCT-2025	State	-
592524	3515	SOX	State Compliance achieved	11-OCT-2024	State	submitted late
592515	3510	SOX	State Compliance achieved	28-FEB-2012	State	MCL CLEARED
592509	3309	SOX	State Compliance achieved	13-FEB-2009	State	-
592509	3509	SOX	State Compliance achieved	13-FEB-2009	State	-
592107	2807	SOX	State Compliance achieved	04-DEC-2006	State	12/4/06 Al and Pat okayed them collecting them late for both 0603 and 0604. DF
592107	2907	SOX	State Compliance achieved	04-DEC-2006	State	12/4/06 Al and Pat okayed them collecting them late for both 0603 and 0604. DF
592107	3007	SOX	State Compliance achieved	04-DEC-2006	State	12/4/06 Al and Pat okayed them collecting them late for both 0603 and 0604. DF
592107	3107	SOX	State Compliance achieved	04-DEC-2006	State	12/4/06 Al and Pat okayed them collecting them late for both 0603 and 0604. DF
592107	3207	SOX	State Compliance achieved	04-DEC-2006	State	12/4/06 Al and Pat okayed them collecting them late for both 0603 and 0604. DF
591604	200	SOX	State Compliance achieved	01-APR-2004	State	-
591604	301	SOX	State Compliance achieved	01-APR-2004	State	-
591604	502	SOX	State Compliance achieved	01-APR-2004	State	-
591002	902	SOX	State Compliance achieved	01-APR-2002	State	Received TOC and chlorine results
591002	802	SOX	State Compliance achieved	01-APR-2002	State	Received TOC and chlorine results
181	781	SIF	State Public Notification received	30-SEP-1981	State	-
181	481	SIF	State Public Notification received	30-SEP-1981	State	-
181	381	SIF	State Public Notification received	30-SEP-1981	State	-
181	281	SIF	State Public Notification received	30-SEP-1981	State	-
181	181	SIF	State Public Notification received	30-SEP-1981	State	-
181	881	SIF	State Public Notification received	30-SEP-1981	State	-
181	981	SIF	State Public Notification received	30-SEP-1981	State	-
181	681	SIF	State Public Notification received	30-SEP-1981	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
LAKE MICHIGAN SURFACE INTAKE	6306	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	14025	No	Distribution System/Zone	-	-	Active
PUMPING FACILITY - RAW WATER #1	28466	No	Pump Facility	-	-	Active
PUMPING FACILITY - FINISHED WATER #1	28467	No	Pump Facility	-	-	Active
BOOSTER PUMPING FACILITY #1A	34226	No	Pump Facility	-	-	Active
BOOSTER PUMPING FACILITY #1B	34227	No	Pump Facility	-	-	Active
BOOSTER PUMPING FACILITY #2A	34228	No	Pump Facility	-	-	Active
BOOSTER PUMPING FACILITY #2B	34229	No	Pump Facility	-	-	Active
STORAGE TANK #1 - WEST	28303	No	Storage	-	-	Active
STORAGE TANK #2 - EAST	28904	No	Storage	-	-	Active
STORAGE TANK #3 - SOUTH	29588	No	Storage	-	-	Active
CLEAR WELL #1 - EAST	29589	No	Storage	-	-	Active
CLEAR WELL #2 - WEST	34225	No	Storage	-	-	Active
STORAGE TANK #4	34230	No	Storage	-	-	Active
TREATMENT PLANT	7408	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT	7408	Sedimentation	Particulate removal
TREATMENT PLANT	7408	Gaseous Chlorination, Pre	Disinfection
TREATMENT PLANT	7408	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT	7408	Coagulation	Disinfection by-products control
TREATMENT PLANT	7408	Flocculation	Disinfection by-products control
TREATMENT PLANT	7408	Rapid Mix	Particulate removal
TREATMENT PLANT	7408	Flocculation	Particulate removal
TREATMENT PLANT	7408	Flocculation	Disinfection by-products control
TREATMENT PLANT	7408	Chloramines	Disinfection
TREATMENT PLANT	7408	Hypochlorination, Post	Disinfection

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