Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NH2401020
PWS Name	N WALPOLE VILLAGE DISTRICT/LOW
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	625
County Served	Cheshire

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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2500345	Returned to Compliance	01-APR-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2400344	Open	28-NOV-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2400343	Open	28-NOV-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2400342	Returned to Compliance	01-JUL-2024	01-OCT-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2400341	Returned to Compliance	01-JUL-2024	01-OCT-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2300340	Open	30-NOV-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2300338	Returned to Compliance	30-NOV-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2300339	Open	30-NOV-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2300334	Returned to Compliance	01-JUL-2023	01-OCT-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2300335	Returned to Compliance	01-JUL-2023	01-OCT-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2300336	Returned to Compliance	01-JUL-2023	01-OCT-2023	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2200329	Returned to Compliance	01-JUL-2022	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2100324	Returned to Compliance	01-JUL-2021	01-OCT-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2100323	Returned to Compliance	01-JUL-2021	01-OCT-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2100325	Returned to Compliance	01-JUL-2021	01-OCT-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1700036	Returned to Compliance	01-APR-2017	01-JUL-2017	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1100035	Returned to Compliance	01-DEC-2011	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1100034	Returned to Compliance	01-DEC-2011	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1100033	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1100032	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0900031	Returned to Compliance	01-JUL-2009	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0700030	Returned to Compliance	01-JUL-2007	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	0613026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0610026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0609026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0608026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0607026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0606026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0605026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0604026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0603026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0602026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0601026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0600026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0614026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0615026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0616026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0617026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0618026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0619026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0620026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	0600027	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0612026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0611026	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	0408028	Returned to Compliance	01-JAN-2004	31-DEC-2006	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	0403028	Returned to Compliance	01-JAN-2004	31-DEC-2006	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	0407028	Returned to Compliance	01-JAN-2004	31-DEC-2006	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	0400029	Returned to Compliance	01-JAN-2004	31-DEC-2006	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	0406028	Returned to Compliance	01-JAN-2004	31-DEC-2006	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	0405028	Returned to Compliance	01-JAN-2004	31-DEC-2006	No

1 - 50 of 81

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2500180	2500345	SOX	State Compliance achieved	22-APR-2025	State	-
2500176	2400341	SIF	State Public Notification received	16-DEC-2024	State	-
2500174	2400342	SIF	State Public Notification received	16-DEC-2024	State	-
2400143	2300334	SIF	State Public Notification received	19-DEC-2023	State	-
2400145	2300335	SIF	State Public Notification received	19-DEC-2023	State	-
2400147	2300336	SIF	State Public Notification received	19-DEC-2023	State	-
2400148	2300338	SOX	State Compliance achieved	19-DEC-2023	State	-
2300125	2200329	SOX	State Compliance achieved	01-JUL-2023	State	-
2200102	2100324	SOX	State Compliance achieved	25-OCT-2021	State	-
2200103	2100323	SOX	State Compliance achieved	25-OCT-2021	State	-
2200101	2100325	SOX	State Compliance achieved	25-OCT-2021	State	-
1800067	1700036	SOX	State Compliance achieved	10-OCT-2017	State	-
1200063	1100035	SOX	State Compliance achieved	13-DEC-2011	State	-
1200061	1100034	SOX	State Compliance achieved	13-DEC-2011	State	-
1200060	1100032	SIF	State Public Notification received	13-DEC-2011	State	-
1200062	1100033	SIF	State Public Notification received	13-DEC-2011	State	-
900051	0900031	SOX	State Compliance achieved	22-JUL-2009	State	-
800049	0700030	SOX	State Compliance achieved	03-MAR-2008	State	-
700047	0600026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0600027	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0601026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0602026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0603026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0604026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0605026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0606026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0607026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0608026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0609026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0610026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0611026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0612026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0613026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0614026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0615026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0616026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0617026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0618026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0619026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0620026	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0410028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0409028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0408028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0407028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0406028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0405028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0404028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0403028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0402028	SIF	State Public Notification received	13-MAR-2007	State	-
700047	0401028	SIF	State Public Notification received	13-MAR-2007	State	-

1 - 50 of 77

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BRW 1 /BACKUP SOURCE	2	Yes	Well	Ground water	Emergency	Inactive
GPW 2 /100' N OF GPW 1	8	Yes	Well	Ground water	Permanent	Active
GPW 1 /50' E OF RIVER	7	Yes	Well	Ground water	Permanent	Active
BRW 2 /IN PH /BACKUP SOURCE	3	Yes	Well	Ground water	Emergency	Inactive
TREATMENT SOURCE 007	509	No	Treatment Plant	-	-	Active
TREATMENT SOURCE 008	510	No	Treatment Plant	-	-	Active
TREATMENT BLDG /SOURCE 007	507	No	Treatment Plant	-	-	Inactive
TREATMENT BLDG /SOURCE 008	508	No	Treatment Plant	-	-	Inactive

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT BLDG /SOURCE 007	507	Filtration, Greensand	Iron removal
TREATMENT BLDG /SOURCE 007	507	Permanganate	Iron removal
TREATMENT BLDG /SOURCE 007	507	Hypochlorination, Post	Disinfection
TREATMENT BLDG /SOURCE 008	508	Filtration, Greensand	Iron removal
TREATMENT BLDG /SOURCE 008	508	Permanganate	Iron removal
TREATMENT BLDG /SOURCE 008	508	Hypochlorination, Post	Disinfection
TREATMENT SOURCE 007	509	Permanganate	Iron removal
TREATMENT SOURCE 007	509	Filtration, Greensand	Iron removal
TREATMENT SOURCE 007	509	Peroxide	Organics removal
TREATMENT SOURCE 007	509	Hypochlorination, Post	Disinfection
TREATMENT SOURCE 008	510	Permanganate	Iron removal
TREATMENT SOURCE 008	510	Filtration, Greensand	Iron removal
TREATMENT SOURCE 008	510	Peroxide	Organics removal
TREATMENT SOURCE 008	510	Ultraviolet Radiation	Organics removal
TREATMENT SOURCE 008	510	Hypochlorination, Post	Disinfection

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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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