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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA1059000
PWS Name	CHESTER WATER DEPT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	750
County Served	Hampden

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.

Violations

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
TT	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	87	Known	01-JUL-2024	31-JUL-2024	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	83	Returned to Compliance	10-OCT-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	82	Open	01-JUN-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	40	Known	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	39	Known	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	38	Known	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	37	Known	01-JUL-2019	30-SEP-2019	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	44	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	50	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	49	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	57	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	56	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	54	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	61	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	65	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	66	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	67	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	62	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	70	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	72	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	63	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	71	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	64	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	69	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	46	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	45	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	36	Known	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	59	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	43	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	47	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	53	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	60	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	68	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	55	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	48	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	58	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	51	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	52	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	73	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35	Known	01-APR-2019	30-JUN-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	42	Returned to Compliance	01-APR-2019	30-JUN-2019	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	34	Known	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	33	Known	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	32	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	88	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	41	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	31	Known	01-APR-2018	30-JUN-2018	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	29	Returned to Compliance	01-JUL-2017	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	28	Known	01-DEC-2014	31-DEC-2014	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	27	Returned to Compliance	01-JUN-2012	-	No

1 - 50 of 142

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
79	87	SFL	State Administrative/Compliance Order without penalty issued	24-JUL-2024	State	UAO-WE-24-00016898 JULY 2024 CHLORINE RESIDUALS BELOW 0.2 MG/L FOR MORE THAN FOUR HOURS
75	83	SFL	State Administrative/Compliance Order without penalty issued	15-NOV-2023	State	NONCSA-WE-23-00015070 FTS 2023 LCR SAMPLES WITHIN TIMEFRAME FTS 2023 LCR 90TH PERCENTILE CONCENTRATIONS WITHIN TIMEFRAME FTS 2023 LCR CONSUMER NOTIFICATION
75	82	SFL	State Administrative/Compliance Order without penalty issued	15-NOV-2023	State	NONCSA-WE-23-00015070 FTS 2023 LCR SAMPLES WITHIN TIMEFRAME FTS 2023 LCR 90TH PERCENTILE CONCENTRATIONS WITHIN TIMEFRAME FTS 2023 LCR CONSUMER NOTIFICATION
71	42	SOX	State Compliance achieved	10-SEP-2020	State	EPA RTC FOR NONCSA-WE-18-00005567 Q2 AND Q3 2019 MRDBPR VIOLATIONS ONLY COMPLIANCE PROPOSAL CSA FORM AND PN OUTSTANDING
71	43	SOX	State Compliance achieved	10-SEP-2020	State	EPA RTC FOR NONCSA-WE-18-00005567 Q2 AND Q3 2019 MRDBPR VIOLATIONS ONLY COMPLIANCE PROPOSAL CSA FORM AND PN OUTSTANDING
80	88	SOX	State Compliance achieved	09-MAR-2020	State	EPA RTC FOR NONCSA-WE-18-00005564 & -00005567
80	41	SOX	State Compliance achieved	09-MAR-2020	State	EPA RTC FOR NONCSA-WE-18-00005564 & -00005567
80	32	SOX	State Compliance achieved	09-MAR-2020	State	EPA RTC FOR NONCSA-WE-18-00005564 & -00005567
73	48	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	73	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	72	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	71	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	70	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	69	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	68	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	67	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	66	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	65	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	64	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	63	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	62	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	61	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	60	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	59	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	58	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	57	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	56	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	55	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	54	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	53	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	44	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	45	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	46	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	47	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	49	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	50	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	51	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
73	52	SOX	State Compliance achieved	28-FEB-2020	State	EPA RTC FOR NONCSA-WE-20-00008906 EXTENDED MONITORING OUTSTANDING
68	38	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	39	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	35	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	40	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	33	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	37	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	34	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
68	36	SFL	State Administrative/Compliance Order without penalty issued	03-MAY-2019	State	NONCSA-WE-19-00006424 Q4 2018 AND Q1 2019 THM MCL VIOLATIONS 3D AND 4TH CONSECUTIVE QUARTERS
64	29	SOX	State Compliance achieved	24-AUG-2017	State	RTC FOR CCR NONSUBMITTAL
60	27	SOX	State Compliance achieved	04-MAR-2015	State	EPA RTC
59	28	SFL	State Administrative/Compliance Order without penalty issued	13-FEB-2015	State	FTS REQUIRED SWTR INFO WITHIN TIMEFRAME FTS DECEMBER 2014 CHEMICAL ADDITION REPORT
61	23	SOX	State Compliance achieved	31-DEC-2012	State	EPA RTC

1 - 50 of 141

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
AUSTIN BROOK RESERVOIR (01S)	1	Yes	Intake	Surface water	Permanent	Active
HORN POND RESERVOIR (02S)	2	Yes	Intake	Surface water	Permanent	Active
AUSTIN BROOK WTP	3	No	Treatment Plant	-	-	Active

1 - 3 of 3

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
AUSTIN BROOK WTP	3	Filtration, Slow Sand	Particulate removal
AUSTIN BROOK WTP	3	pH Adjustment	Corrosion control
AUSTIN BROOK WTP	3	Hypochlorination, Pre	Disinfection
AUSTIN BROOK WTP	3	Activated Carbon, Granular	Organics removal

1 - 4 of 4

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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