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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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	40	Returned to Compliance	01-JAN-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	41	Returned to Compliance	01-OCT-2024	-	No
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	39	Returned to Compliance	01-JUN-2022	30-JUN-2022	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	37	Returned to Compliance	01-JAN-2022	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	38	Returned to Compliance	01-OCT-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	36	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	28	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	34	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	33	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	27	Returned to Compliance	01-OCT-2018	-	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	26	Returned to Compliance	01-JAN-2018	31-MAR-2018	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	25	Returned to Compliance	01-JAN-2018	31-MAR-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	31	Returned to Compliance	01-JAN-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	32	Returned to Compliance	01-JAN-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	29	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	23	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	30	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	22	Returned to Compliance	01-OCT-2015	31-DEC-2015	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	19	Returned to Compliance	01-OCT-2011	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	16	Returned to Compliance	01-JUL-2011	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	18	Returned to Compliance	01-SEP-2010	30-SEP-2010	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	17	Returned to Compliance	01-JUL-2008	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	13	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	15	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	14	Returned to Compliance	23-JAN-2006	31-MAR-2006	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	11	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	6	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	10	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	1	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	3	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	9	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	8	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	7	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	99V0008	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	99V0009	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	99V0001	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	99V0002	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	99V0004	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	99V0005	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	99V0006	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	99V0003	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	5	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	99V0007	Known	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	4	Returned to Compliance	10-JAN-1996	09-JAN-1999	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	12	Returned to Compliance	01-JAN-1996	31-DEC-1998	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	9710001	Returned to Compliance	01-JAN-1996	17-SEP-1997	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
65	40	SOX	State Compliance achieved	28-FEB-2025	State	LSCN - Certification form for RT 2024 signed by Everett Kennedy III on 2/28/2025 (rec'd 2/28/2025); notice mailed per certification form; copy of 1 notice attached; Chesapeake Environmental Lab (#181) reporting date for RT 2024 = 10/09/2024-10/24/2024.
66	41	SOX	State Compliance achieved	04-NOV-2024	State	LATE REPORT - RT 2024 Pb/Cu report rec'd 11/04/2024.
61	39	SIE	State Public Notification requested	20-APR-2023	State	-
58	37	SOX	State Compliance achieved	28-JAN-2022	State	LATE LSCN - LSCN for RT 2021 Pb/Cu report rec'd 1/28/22.
56	38	SOX	State Compliance achieved	10-DEC-2021	State	LATE REPORT - RT 2021 Pb/Cu report rec'd 12/10/21.
52	34	SOX	State Compliance achieved	10-AUG-2021	State	RTC upon receipt of sample taken on 8/10/2021
52	33	SOX	State Compliance achieved	10-AUG-2021	State	RTC upon receipt of sample taken on 8/10/2021
52	35	SOX	State Compliance achieved	10-AUG-2021	State	RTC upon receipt of sample taken on 8/10/2021
52	36	SOX	State Compliance achieved	10-AUG-2021	State	RTC upon receipt of sample taken on 8/10/2021
48	28	SIF	State Public Notification received	17-MAR-2021	State	-
49	32	SOX	State Compliance achieved	11-FEB-2019	State	RTC effective samples taken 2/11/2019.
49	31	SOX	State Compliance achieved	11-FEB-2019	State	RTC effective samples taken 2/11/2019.
49	29	SOX	State Compliance achieved	11-FEB-2019	State	RTC effective samples taken 2/11/2019.
49	30	SOX	State Compliance achieved	11-FEB-2019	State	RTC effective samples taken 2/11/2019.
37	27	SOX	State Compliance achieved	26-NOV-2018	State	LATE REPORT - RT 2018 Pb/Cu report rec'd 11/26/18.
34	26	SOX	State Compliance achieved	03-JUL-2018	State	Received 1st qtr 2018 As report for TP 04 on 7/3/18.
33	25	SOX	State Compliance achieved	03-JUL-2018	State	Received 1st qtr 2018 As report for TP 03 on 7/3/18.
35	23	SIF	State Public Notification received	26-JUN-2018	State	-
29	22	SIE	State Public Notification requested	17-MAY-2016	State	NOV letter sent via USPS certified.
27	19	SOX	State Compliance achieved	15-FEB-2012	State	ENFORCEMENTID :1254532;
26	16	SOX	State Compliance achieved	12-JUL-2011	State	ENFORCEMENTID :1153240;
25	18	SOX	State Compliance achieved	10-OCT-2010	State	ENFORCEMENTID :1150259;
24	17	SOX	State Compliance achieved	19-MAR-2009	State	ENFORCEMENTID :0843893; CCR CERTIFICATION RECEIVED
18	14	SOX	State Compliance achieved	01-APR-2008	State	ENFORCEMENTID :0840321; X-SECOND PLANT IN OPERATION
17	13	SOX	State Compliance achieved	01-APR-2008	State	ENFORCEMENTID :0840321; X-SECOND PLANT IN OPERATION
19	15	SOX	State Compliance achieved	01-APR-2008	State	ENFORCEMENTID :0840321; X-SECOND PLANT IN OPERATION
3	8	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	7	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	5	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	4	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	3	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	2	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
15	1	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	9	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	10	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
16	12	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
3	6	SOX	State Compliance achieved	16-FEB-1999	State	ENFORCEMENTID :9916044;
14	11	SOX	State Compliance achieved	12-FEB-1999	State	ENFORCEMENTID :9915426;
9710002	9710001	SOX	State Compliance achieved	17-SEP-1997	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
CENTREVILLE WELL 5 QA941390	1654	Yes	Well	Ground water	Permanent	Active
CENTREVILLE WELL 4 QA670030	1653	Yes	Well	Ground water	Permanent	Inactive
CENTREVILLE WELL 3 QA044935	1652	Yes	Well	Ground water	Permanent	Inactive
OLD BLDG 1 QA033814	1651	Yes	Well	Ground water	Permanent	Inactive
(NORTHBROOK) WELL 6 QA943510	1655	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	8804	No	Distribution System/Zone	-	-	Active
STORAGE TANK	19093	No	Storage	-	-	Active
WTP 3 WELL 5	26259	No	Treatment Plant	-	-	Active
NORTHBROOK WTP	26260	No	Treatment Plant	-	-	Active
WTP 1-OLD BLDG WELL 1 & WELL 3	26257	No	Treatment Plant	-	-	Inactive
WTP 2 WELL 4	26258	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
WTP 2 WELL 4	26258	Gaseous Chlorination, Pre	Disinfection
WTP 2 WELL 4	26258	Inhibitor, Orthophosphate	Corrosion control
WTP 2 WELL 4	26258	Sequestration	Corrosion control
WTP 3 WELL 5	26259	Hypochlorination, Pre	Disinfection
WTP 3 WELL 5	26259	Coagulation	Iron removal
WTP 3 WELL 5	26259	Filtration, Greensand	Iron removal
WTP 3 WELL 5	26259	Filtration, Greensand	Inorganics removal
WTP 3 WELL 5	26259	Filtration, Greensand	Other
NORTHBROOK WTP	26260	Hypochlorination, Pre	Disinfection
NORTHBROOK WTP	26260	Coagulation	Iron removal
NORTHBROOK WTP	26260	Filtration, Greensand	Iron removal
NORTHBROOK WTP	26260	Filtration, Greensand	Inorganics removal
NORTHBROOK WTP	26260	Filtration, Greensand	Other

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