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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)	7052644	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7052643	Known	01-JAN-2025	31-DEC-2025	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7052635	Returned to Compliance	01-AUG-2012	31-AUG-2012	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7052634	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7052607	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7052106	Returned to Compliance	10-SEP-2005	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7051905	Returned to Compliance	01-JUN-2005	30-JUN-2005	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Barium	4439999	Returned to Compliance	01-JAN-1999	31-MAR-1999	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	4440099	Returned to Compliance	01-JAN-1999	31-MAR-1999	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3904697	Known	01-JUL-1997	31-JUL-1997	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3904797	Known	01-JUL-1997	31-JUL-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2911695	Known	01-JAN-1995	31-JAN-1995	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	263584	Returned to Compliance	14-SEP-1984	13-SEP-1988	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7050780	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
8159029	7052644	SIF	State Public Notification received	01-DEC-2025	State	-
8159029	7052643	SIF	State Public Notification received	01-DEC-2025	State	-
8159023	7052634	SOX	State Compliance achieved	08-JUL-2013	State	-
8159021	7052635	SIF	State Public Notification received	09-OCT-2012	State	-
8159008	7052607	SOX	State Compliance achieved	31-JAN-2007	State	Sample collected
8158306	7051905	SOX	State Compliance achieved	10-JAN-2006	State	-
8158206	7052106	SIA	State Violation/Reminder Notice	13-OCT-2005	State	-
8157399	4440099	SOX	State Compliance achieved	20-AUG-1999	State	-
8157299	4439999	SOX	State Compliance achieved	16-AUG-1999	State	-
6820198	3904797	SIE	State Public Notification requested	05-OCT-1997	State	-
6820198	3904697	SIE	State Public Notification requested	05-OCT-1997	State	-
4516195	2911695	SIF	State Public Notification received	17-MAY-1995	State	-
1007984	263584	SOX	State Compliance achieved	01-JUL-1986	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 12-EMERGENCY CONNECTION	34143	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL 17 (01870)	39752	Yes	Well	Ground water	Permanent	Active
WELL 16 (01596)	33953	Yes	Well	Ground water	Permanent	Active
WELL 15 (01450)	32880	Yes	Well	Ground water	Permanent	Active
WELL 6 (20198)	19913	Yes	Well	Ground water	Permanent	Active
WELL 12 (01203)	18997	Yes	Well	Ground water	Permanent	Active
WELL 14 (01190)	18984	Yes	Well	Ground water	Permanent	Active
WELL 11 (01046)	18842	Yes	Well	Ground water	Permanent	Active
WELL 10 (01045)	18841	Yes	Well	Ground water	Permanent	Active
WELL 9 (00707)	18513	Yes	Well	Ground water	Permanent	Active
WELL 5 (20197) ABANDONED	19912	Yes	Well	Ground water	Other	Inactive
WELL 4 (20196) ABANDONED	19911	Yes	Well	Ground water	Other	Inactive
WELL 2 (20195) ABANDONED	19910	Yes	Well	Ground water	Other	Inactive
WELL 1 (20194) ABANDONED	19909	Yes	Well	Ground water	Other	Inactive
LAKE IN THE HILLS	24406	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46432	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46433	No	Distribution System/Zone	-	-	Active
PF 13 - INTERZONE PUMP STATION	39527	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	28065	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30487	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47119	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47120	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47121	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47122	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47123	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47124	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47125	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47126	No	Sampling Station	-	-	Active
ELEV01-400,000-GALLON EST	44687	No	Storage	-	-	Active
ELEV02-750,000-GALLON EST	44688	No	Storage	-	-	Active
ELEV03-1.0 MG EST	44689	No	Storage	-	-	Active
ELEV04-750,000-GALLON EST	44690	No	Storage	-	-	Active
GR08-100K GALLON GROUND TANK AT TP01	44693	No	Storage	-	-	Active
GR11-100K GALLON GROUND TANK AT TP11	44694	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11459	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12313	No	Storage	-	-	Inactive
TAP 01 PRESSURE STORAGE	14184	No	Storage	-	-	Inactive
TP 04-WELL 6 PRESSURE IRON FILTER	16489	No	Treatment Plant	-	-	Active
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	No	Treatment Plant	-	-	Active
TP 06-WELL 10 PRESSURE IRON FILTER	16491	No	Treatment Plant	-	-	Active
TP 07-WELL 11 ION-EXCHANGE SOFTENING	16492	No	Treatment Plant	-	-	Active
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	No	Treatment Plant	-	-	Active
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	No	Treatment Plant	-	-	Active
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	No	Treatment Plant	-	-	Active
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	No	Treatment Plant	-	-	Active
TP 01-WELL 1 (INACTIVE)	16486	No	Treatment Plant	-	-	Inactive
TP 02-WELLS 2 AND 5 (INACTIVE)	16487	No	Treatment Plant	-	-	Inactive
TP 03-WELL 5 (INACTIVE)	16488	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 04-WELL 6 PRESSURE IRON FILTER	16489	Fluoridation	Other
TP 04-WELL 6 PRESSURE IRON FILTER	16489	Filtration, Pressure Sand	Iron removal
TP 04-WELL 6 PRESSURE IRON FILTER	16489	Gaseous Chlorination, Post	Disinfection
TP 04-WELL 6 PRESSURE IRON FILTER	16489	Gaseous Chlorination, Pre	Iron removal
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	Fluoridation	Other
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	Filtration, Pressure Sand	Iron removal
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	Gaseous Chlorination, Post	Disinfection
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	Aeration, Packed Tower	Iron removal
TP 05-WELLS 9 & 17 TREATED W/ FE FILTERS	16490	Gaseous Chlorination, Pre	Iron removal
TP 06-WELL 10 PRESSURE IRON FILTER	16491	Fluoridation	Other
TP 06-WELL 10 PRESSURE IRON FILTER	16491	Filtration, Pressure Sand	Iron removal
TP 06-WELL 10 PRESSURE IRON FILTER	16491	Gaseous Chlorination, Post	Disinfection
TP 06-WELL 10 PRESSURE IRON FILTER	16491	Gaseous Chlorination, Pre	Iron removal
TP 07-WELL 11 ION-EXCHANGE SOFTENING	16492	Fluoridation	Other
TP 07-WELL 11 ION-EXCHANGE SOFTENING	16492	Ion Exchange	Radionuclides removal
TP 07-WELL 11 ION-EXCHANGE SOFTENING	16492	Gaseous Chlorination, Post	Disinfection
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Aeration, Slat Tray	Iron removal
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Fluoridation	Other
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Permanganate	Iron removal
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Filtration, Rapid Sand	Inorganics removal
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Gaseous Chlorination, Pre	Iron removal
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Gaseous Chlorination, Post	Disinfection
TP 08-WELL 12 GRAVITY FILTER FOR IRON	33093	Innovative	Inorganics removal
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	Inhibitor, Polyphosphate	Corrosion control
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	Fluoridation	Other
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	Ion Exchange	Radionuclides removal
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	Gaseous Chlorination, Pre	Taste / odor control
TP 09-WELL 14 ION-EXCHANGE SOFTENING	33094	Gaseous Chlorination, Post	Disinfection
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	Gaseous Chlorination, Post	Disinfection
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	Fluoridation	Other
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	Inhibitor, Orthophosphate	Corrosion control
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	Ion Exchange	Radionuclides removal
TP 10-WELL 15 ION-EXCHANGE SOFTENING	33839	Gaseous Chlorination, Pre	Taste / odor control
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Aeration, Slat Tray	Iron removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Gaseous Chlorination, Pre	Iron removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Permanganate	Iron removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Innovative	Inorganics removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Filtration, Rapid Sand	Iron removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Rapid Mix	Inorganics removal
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Gaseous Chlorination, Post	Disinfection
TP 11-WELL 16 GRAVITY FILTER FOR IRON	33959	Fluoridation	Other

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