Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA4307000
PWS Name	WALPOLE WATER DEPT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	24070
County Served	Norfolk

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	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	113	Known	01-NOV-2025	30-NOV-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	112	Known	01-NOV-2025	30-NOV-2025	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	71	Returned to Compliance	01-OCT-2013	31-OCT-2013	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	98	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	93	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	99	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	87	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	91	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	88	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	92	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	96	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	95	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	90	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	97	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	89	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	70	Returned to Compliance	01-FEB-2009	28-FEB-2009	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	00V0001	Returned to Compliance	01-SEP-2000	30-SEP-2000	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	99V0002	Returned to Compliance	01-JUL-1998	-	No
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	99V0001	Returned to Compliance	24-JUN-1998	-	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	98V0030	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	98V0011	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	98V0012	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	98V0032	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	98V0036	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	98V0037	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	98V0038	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	98V0039	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	98V0041	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	98V0042	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	98V0043	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	98V0044	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	98V0045	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	98V0046	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	98V0047	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	98V0049	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	98V0051	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	98V0052	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	98V0053	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	98V0054	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	98V0057	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	98V0001	Known	01-JAN-1998	31-MAR-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0002	Known	01-JUN-1997	30-JUN-1997	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Known	01-OCT-1996	31-OCT-1996	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
35	113	SFL	State Administrative/Compliance Order without penalty issued	30-DEC-2025	State	FTM THM/HAA IN NOV 2025 4 LOCATIONS
35	112	SFL	State Administrative/Compliance Order without penalty issued	30-DEC-2025	State	FTM THM/HAA IN NOV 2025 4 LOCATIONS
31	93	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	92	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	91	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	90	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	89	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	88	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	87	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	99	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	96	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	95	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	98	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
31	97	SOX	State Compliance achieved	15-APR-2015	State	EPA RTC
29	71	SOX	State Compliance achieved	28-FEB-2014	State	TCR: MONMCL OCT 2013
27	70	SOX	State Compliance achieved	09-JUN-2009	State	-
13	00V0001	SOX	State Compliance achieved	03-NOV-2000	State	-
12	99V0001	SOX	State Compliance achieved	22-DEC-1999	State	-
12	99V0002	SOX	State Compliance achieved	22-DEC-1999	State	-
6	98V0054	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0057	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0053	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0052	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0051	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0049	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0047	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0046	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0045	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0044	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0043	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0042	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0041	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0039	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0038	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0037	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0036	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0032	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0030	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0012	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0001	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
6	98V0011	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
5	97V0002	SIF	State Public Notification received	30-JUN-1997	State	-
4	97V0001	SIF	State Public Notification received	07-NOV-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WASHINGTON #4 GP WELL	10	Yes	Well	Ground water	Emergency	Inactive
WASHINGTON 6 GP WELL	9	Yes	Well	Ground water	Permanent	Active
WASHINGTON 5 GP WELL	8	Yes	Well	Ground water	Permanent	Active
WASHINGTON ST WELL #3B	57	Yes	Well	Ground water	Permanent	Active
WASHINGTON ST WELL #3A	56	Yes	Well	Ground water	Permanent	Active
WASHINGTON ST WELL #2B	55	Yes	Well	Ground water	Permanent	Active
WASHINGTON ST WELL #2A	54	Yes	Well	Ground water	Permanent	Active
MINE BROOK 5A GP WELL	51	Yes	Well	Ground water	Permanent	Active
MINE BROOK 3A GP WELL	49	Yes	Well	Ground water	Permanent	Active
MINE BROOK 2A GP WELL	47	Yes	Well	Ground water	Permanent	Active
MINE BROOK 1A GP WELL	45	Yes	Well	Ground water	Permanent	Active
WASHINGTON 4B GP WELL	43	Yes	Well	Ground water	Permanent	Active
WASHINGTON 4A GP WELL	40	Yes	Well	Ground water	Permanent	Active
MINE BROOK 3 GP WELL	3	Yes	Well	Ground water	Permanent	Active
MINE BROOK 2 GD WELL	2	Yes	Well	Ground water	Permanent	Active
NEPONSET WELL 2 (P.S. 1)	13	Yes	Well	Ground water	Permanent	Active
NEPONSET WELL 1 (P.S. 1)	12	Yes	Well	Ground water	Permanent	Active
MINE BROOK 5 GP WELL	11	Yes	Well	Ground water	Permanent	Active
MINE BROOK 1 GP WELL	1	Yes	Well	Ground water	Permanent	Active
SOUTH ST. GP WELL	7	Yes	Well	Ground water	Emergency	Inactive
WASHINGTON 2 GP WELL	6	Yes	Well	Ground water	Emergency	Inactive
WASHINGTON 3 GP WELL	5	Yes	Well	Ground water	Emergency	Inactive
WASHINGTON ST. #1 TUB WF	4	Yes	Well	Ground water	Emergency	Inactive
MINE BROOK #3 GP WELL PUMP	16	No	Pump Facility	-	-	Active
WASHINGTON GP WELL # 2A / #2B	17	No	Pump Facility	-	-	Active
WASHINGTON GP WELL # 6 PUMP	19	No	Pump Facility	-	-	Active
MINE BROOK #1 GP WELL PUMP	21	No	Pump Facility	-	-	Active
MINE BROOK #5 GP WELL PUMP	23	No	Pump Facility	-	-	Active
WASHINGTON ST. BOOSTER PUMP STATION	24	No	Pump Facility	-	-	Active
OLD POST RD. BOOSTER STATION	25	No	Pump Facility	-	-	Active
HIGH STREET PUMP STATION	26	No	Pump Facility	-	-	Active
NORTH ST. BOOSTER PUMP STATION	27	No	Pump Facility	-	-	Active
WASHINGTON GP # 3A / 3B	36	No	Pump Facility	-	-	Active
WASHINGTON GP # 5	37	No	Pump Facility	-	-	Active
NEPONSET WELL # 1	38	No	Pump Facility	-	-	Active
WASHINGTON 4A GP WELL PUMP	41	No	Pump Facility	-	-	Active
WASHINGTON 4B GP WELL PUMP	44	No	Pump Facility	-	-	Active
MINE BROOK 1A GP WELL PUMP	46	No	Pump Facility	-	-	Active
MINE BROOK 2A GP WELL PUMP	48	No	Pump Facility	-	-	Active
MINE BROOK 3A GP WELL PUMP	50	No	Pump Facility	-	-	Active
MINE BROOK 5A GP WELL PUMP	52	No	Pump Facility	-	-	Active
MINE BROOK #2 GD WELL PUMP	15	No	Pump Facility	-	-	Inactive
SOUTH ST. GP WELL PUMP	18	No	Pump Facility	-	-	Inactive
WASHINGTON GP WELL # 4 PUMP	20	No	Pump Facility	-	-	Inactive
MINE BROOK GP WELL # 4 PUMP	22	No	Pump Facility	-	-	Inactive
NORTH WALPOLE TANK	28	No	Storage	-	-	Active
OLD POST RD. TANK	32	No	Storage	-	-	Active
SOUTH WALPOLE TANK	33	No	Storage	-	-	Active
DUFFY RESERVOIR	35	No	Storage	-	-	Active
SOUTH WALPOLE TANK #2	53	No	Storage	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
HE WILLIS WATER TREATMENT PLANT	14	pH Adjustment	Corrosion control
HE WILLIS WATER TREATMENT PLANT	14	Hypochlorination, Pre	Disinfection
HE WILLIS WATER TREATMENT PLANT	14	Fluoridation	Other
HE WILLIS WATER TREATMENT PLANT	14	Filtration, Ultrafiltration	Iron removal
HE WILLIS WATER TREATMENT PLANT	14	Aeration, Diffused	Iron removal
HE WILLIS WATER TREATMENT PLANT	14	Hypochlorination, Post	Disinfection
HE WILLIS WATER TREATMENT PLANT	14	Filtration, Ultrafiltration	Manganese removal
HE WILLIS WATER TREATMENT PLANT	14	pH Adjustment, Post	Corrosion control
HE WILLIS WATER TREATMENT PLANT	14	Chloramines	Disinfection
HE WILLIS WATER TREATMENT PLANT	14	4-Log Treatment of Viruses	Disinfection
EDWARD J DELANEY WTP	58	Filtration, Greensand	Manganese removal
EDWARD J DELANEY WTP	58	Hypochlorination, Pre	Disinfection
EDWARD J DELANEY WTP	58	pH Adjustment	Corrosion control
EDWARD J DELANEY WTP	58	Fluoridation	Other
EDWARD J DELANEY WTP	58	Aeration, Packed Tower	Organics removal
EDWARD J DELANEY WTP	58	Chloramines	Disinfection
EDWARD J DELANEY WTP	58	4-Log Treatment of Viruses	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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