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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	100069417	Open	29-SEP-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	100069418	Open	01-JUL-2025	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	100069423	Known	01-JUL-2025	31-DEC-2025	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	100069440	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	100069439	Known	01-JUL-2025	30-SEP-2025	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	100069411	Open	01-MAY-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	100069410	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	100069432	Known	01-JAN-2025	31-MAR-2025	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	100069412	Known	01-JAN-2025	30-JUN-2025	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	100069431	Known	01-JAN-2025	31-MAR-2025	Yes
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	100069405	Returned to Compliance	17-OCT-2024	-	Yes
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	100069406	Returned to Compliance	17-OCT-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	100069399	Returned to Compliance	30-JAN-2022	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	100069396	Returned to Compliance	01-OCT-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	100069394	Returned to Compliance	01-JUL-2020	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	100069393	Returned to Compliance	30-DEC-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	100069392	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	100069388	Returned to Compliance	01-OCT-2014	31-DEC-2014	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	100069387	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	100069385	Returned to Compliance	01-JUL-2010	30-SEP-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060420	Returned to Compliance	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	104	Returned to Compliance	01-NOV-2003	30-NOV-2003	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2004997	Known	01-JAN-1997	31-MAR-1997	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1076594	Known	01-OCT-1993	31-OCT-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	1076694	Known	01-OCT-1993	31-OCT-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	1077693	Known	01-OCT-1992	31-OCT-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1077593	Known	01-OCT-1992	31-OCT-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4127592	Known	01-AUG-1992	31-AUG-1992	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	4127692	Known	01-AUG-1992	31-AUG-1992	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
990042131	100069418	SIA	State Violation/Reminder Notice	31-DEC-2025	State	-
990042130	100069405	SOX	State Compliance achieved	05-DEC-2025	State	LSLI COMPLETED - AW 12/5/2025
990042130	100069406	SOX	State Compliance achieved	05-DEC-2025	State	LSLI COMPLETED - AW 12/5/2025
990042128	100069417	SIA	State Violation/Reminder Notice	03-NOV-2025	State	-
990042119	100069412	SIE	State Public Notification requested	03-SEP-2025	State	-
990042117	100069411	SIA	State Violation/Reminder Notice	28-MAY-2025	State	-
990042116	100069410	SOX	State Compliance achieved	08-MAY-2025	State	SOX’D MARCH 2025 VIOLATION BECAUSE THE PWS FULFILLED APRIL 2025 COLIFORM SAMPLE REQUIREMENTS.
990042101	100069396	SIF	State Public Notification received	11-OCT-2022	State	-
990042100	100069399	SOX	State Compliance achieved	11-OCT-2022	State	ADEQUATE PN RECEIVED 10/11/2022 - LAC
990042092	100069394	SOX	State Compliance achieved	12-NOV-2020	State	-
990042090	100069393	SOX	State Compliance achieved	06-MAR-2018	State	-
990042088	100069392	SOX	State Compliance achieved	25-JUL-2017	State	07/25/2017; TMOORE; SYSTEM SUBMITTED ADEQUATE 2016 CCR
990042085	100069387	SOX	State Compliance achieved	26-JUN-2015	State	20150626; KMURPHY; Submitted 1Q 2015 on time
990042085	100069388	SOX	State Compliance achieved	26-JUN-2015	State	20150626; KMURPHY; Submitted 1Q 2015 on time
990042078	100069385	SOX	State Compliance achieved	17-JUL-2014	State	Submitted first quarter of 2014 DLQOR
90098308	90060420	SOX	State Compliance achieved	04-AUG-2009	State	SUBMITTED DLQOR AND PUBLIC NOTICE
404	104	SIF	State Public Notification received	01-MAR-2004	State	PUBLIC NOTICE IS CONFIRMED TO HAVE OCCURED WITHIN REQUIRED PERIOD. STATUS DATE IS DEFAULTED, BUT PAPER CERTIFICATION RECORD IS ON FILE WITH TCEQ.

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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
3 - DEER COUNTRY / HWY 287	25910	Yes	Well	Ground water	Permanent	Active
1 - CHESTER	25924	Yes	Well	Ground water	Permanent	Active
2 - CHESTER	25912	Yes	Well	Ground water	Permanent	Active
4 - BARNUM LOOP	25911	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	45893	No	Distribution System/Zone	-	-	Active
BARNUM LOOP - 250 GPM - SP	79368	No	Pump Facility	-	-	Active
BARNUM LOOP - 250 GPM - SP	79369	No	Pump Facility	-	-	Active
DEER COUNTRY - 600 GPM - SP	79370	No	Pump Facility	-	-	Active
DEER COUNTRY - 350 GPM - SP	79371	No	Pump Facility	-	-	Active
CHESTER - 500 GPM - SP	79372	No	Pump Facility	-	-	Active
CHESTER - 500 GPM - SP	79373	No	Pump Facility	-	-	Active
141 CADE ST; CHESTER	140432	No	Sampling Station	-	-	Active
3145 BARNUM LOOP; CORRIGAN	140433	No	Sampling Station	-	-	Active
249 DEER COUNTRY RD; CORRIGAN	140434	No	Sampling Station	-	-	Active
3145 BARNUM LOOP, CORRIGAN	58965	No	Sampling Station	-	-	Active
141 CADE ST, CHESTER	58966	No	Sampling Station	-	-	Active
249 DEER COUNTRY RD, CORRIGAN	61171	No	Sampling Station	-	-	Active
BARNUM LOOP - 0.0015 MG - HD	97457	No	Storage	-	-	Active
BARNUM LOOP - 0.015 MG - GR	97458	No	Storage	-	-	Active
DEER COUNTRY - 0.005 MG - HD	97459	No	Storage	-	-	Active
DEER COUNTRY - 0.066 MG - GR	97460	No	Storage	-	-	Active
CHESTER - 0.004 MG - HD	97461	No	Storage	-	-	Active
CHESTER - 0.004 MG - HD	97462	No	Storage	-	-	Active
CHESTER - 0.04 MG - GR	97463	No	Storage	-	-	Active
CHESTER - 0.05 MG - GR	97464	No	Storage	-	-	Active
PLANT - CHESTER PP 1 241 CX	2890	No	Treatment Plant	-	-	Active
PLANT - BARNUM LP TO BARNUM	2891	No	Treatment Plant	-	-	Active
PLANT - DEER COUNTRY TO BARNUM PP 231 CX	3186	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT - CHESTER PP 1 241 CX	2890	Sequestration	Iron removal
PLANT - CHESTER PP 1 241 CX	2890	Sequestration	Manganese removal
PLANT - CHESTER PP 1 241 CX	2890	Gaseous Chlorination, Pre	Disinfection
PLANT - BARNUM LP TO BARNUM	2891	Gaseous Chlorination, Pre	Disinfection
PLANT - BARNUM LP TO BARNUM	2891	Aeration, Diffused	Iron removal
PLANT - BARNUM LP TO BARNUM	2891	Filtration, Rapid Sand	Iron removal
PLANT - BARNUM LP TO BARNUM	2891	Filtered	Particulate removal
PLANT - DEER COUNTRY TO BARNUM PP 231 CX	3186	Sequestration	Iron removal
PLANT - DEER COUNTRY TO BARNUM PP 231 CX	3186	Sequestration	Manganese removal
PLANT - DEER COUNTRY TO BARNUM PP 231 CX	3186	Gaseous Chlorination, Pre	Disinfection

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