Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA4050000
PWS Name	CANTON WATER DEPT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	Yes
Population Served	22453
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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	10	Open	01-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9	Returned to Compliance	01-AUG-2013	31-AUG-2013	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8	Returned to Compliance	01-NOV-2012	30-NOV-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7	Returned to Compliance	01-SEP-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6	Returned to Compliance	01-AUG-2012	31-AUG-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	5	Returned to Compliance	01-JUL-2012	31-JUL-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4	Returned to Compliance	01-JUN-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2	Known	01-SEP-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	3	Known	01-SEP-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Volatile Organic Chemicals	DICHLOROMETHANE	1	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
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)	93V0002	Known	01-APR-1993	30-APR-1993	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	9230003	Known	01-JUN-1992	30-JUN-1992	No
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9799999	Known	01-JAN-1992	05-MAY-2000	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	91V0001	Known	01-JAN-1989	01-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	91V0006	Known	01-JAN-1989	01-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	91V0005	Known	01-JAN-1989	01-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	91V0004	Known	01-JAN-1989	01-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	91V0003	Known	01-JAN-1989	01-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	91V0002	Known	01-JAN-1989	01-DEC-1989	No

1 - 20 of 20

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
21	10	SFL	State Administrative/Compliance Order without penalty issued	09-JAN-2025	State	48 OF 60 LCR SAMPLES COLLECTED
18	9	SOX	State Compliance achieved	29-NOV-2013	State	TCR: MONMCL AUG 2013
16	7	SOX	State Compliance achieved	28-JAN-2013	State	TCR: MONMCL JUL/AUG/SEP/NOVE 2012
16	5	SOX	State Compliance achieved	28-JAN-2013	State	TCR: MONMCL JUL/AUG/SEP/NOVE 2012
16	6	SOX	State Compliance achieved	28-JAN-2013	State	TCR: MONMCL JUL/AUG/SEP/NOVE 2012
16	8	SOX	State Compliance achieved	28-JAN-2013	State	TCR: MONMCL JUL/AUG/SEP/NOVE 2012
13	4	SOX	State Compliance achieved	31-AUG-2012	State	TCR: MONMCL JUN 2012
11	2	SFL	State Administrative/Compliance Order without penalty issued	27-SEP-2011	State	BOIL ORDER
11	3	SFL	State Administrative/Compliance Order without penalty issued	27-SEP-2011	State	BOIL ORDER
20	1	SOX	State Compliance achieved	21-JUN-2011	State	EPA RTC
5	98V0001	SFL	State Administrative/Compliance Order without penalty issued	18-MAY-1998	State	-
9799999	9799999	SFL	State Administrative/Compliance Order without penalty issued	29-JUN-1993	ODSWeb	-
3	93V0002	SIE	State Public Notification requested	20-MAY-1993	State	PUBLIC NOTICE ISSUED 5/29/93, COMPLIANCE ACHIEVED

1 - 13 of 13

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MWRA SUPPLY (DEDHAM ST.)	20	Yes	Consecutive Connection	Surface water	Permanent	Active
GP WELL 7 (NEPONSET ST.)	9	Yes	Well	Ground water	Permanent	Active
GP WELL 9A	47	Yes	Well	Ground water	Permanent	Active
GP WELL #16 (FOREST AVE.)	41	Yes	Well	Ground water	Permanent	Active
GP WELL # 9	38	Yes	Well	Ground water	Permanent	Active
GP WELL #14 (PECUNIT)	36	Yes	Well	Ground water	Permanent	Active
GP WELL #13 (FOREST AVE)	33	Yes	Well	Ground water	Permanent	Active
GP WELL# 12 (PECUNIT)	31	Yes	Well	Ground water	Permanent	Active
GP WELL #11 (PECUNIT)	29	Yes	Well	Ground water	Permanent	Active
GP WELL # 6 (FOREST AVE.)	8	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 5 (FOREST AVE.)	7	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 4 (PECUNIT ST.)	6	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 3 (DEDHAM ST.)	5	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 2 (DEDHAM ST.)	4	Yes	Well	Ground water	Emergency	Inactive
SPRINGDALE DUG & TUB. WELLS	3	Yes	Well	Ground water	Emergency	Inactive
GD WELL #10 (FOREST AVE.)	23	Yes	Well	Ground water	Emergency	Inactive
HENRYS SPRING DUG WELL	2	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 1 (WASHINGTON ST.)	1	Yes	Well	Ground water	Emergency	Inactive
MILTON WATER DEPARTMENT (MWRA)	35	Yes	Consecutive Connection	Surface water	Permanent	Active
GP WELL 7 PUMP	15	No	Pump Facility	-	-	Active
GP WELL 11 (PECUNIT ST.) PUMP	30	No	Pump Facility	-	-	Active
GP WELL 12 (PECUNIT ST.) PUMP	32	No	Pump Facility	-	-	Active
WELL 13 PUMP	34	No	Pump Facility	-	-	Active
GP WELL 14 (PECUNIT) PUMP	37	No	Pump Facility	-	-	Active
WELL NO 9	40	No	Pump Facility	-	-	Active
WELL #16 PUMP	43	No	Pump Facility	-	-	Active
RANDOLPH ST BOOSTER	45	No	Pump Facility	-	-	Active
SPHEROID TANK	46	No	Pump Facility	-	-	Active
GP WELL 9A PUMP	48	No	Pump Facility	-	-	Active
GP WELL # 2 PUMP	10	No	Pump Facility	-	-	Inactive
GP WELL # 3 PUMP	11	No	Pump Facility	-	-	Inactive
GP WELL # 4 PUMP	12	No	Pump Facility	-	-	Inactive
GP WELL # 5 PUMP	13	No	Pump Facility	-	-	Inactive
GP WELL # 6 PUMP	14	No	Pump Facility	-	-	Inactive
GD WELL 10 (FOREST AVE.) PUMP	24	No	Pump Facility	-	-	Inactive
PONKAPOAG	16	No	Storage	-	-	Active
INDIAN LANE	17	No	Storage	-	-	Active
SPHERIOD	18	No	Storage	-	-	Active
RANDOLPH	21	No	Storage	-	-	Active
TOLMAN ST	42	No	Storage	-	-	Active
NEPONSET STREET WTF	44	No	Storage	-	-	Active
TOLMAN	19	No	Storage	-	-	Inactive
PECUNIT STREET TREATMENT PLANT	25	No	Treatment Plant	-	-	Active
NEPONSET STREET TREATMENT PLANT	39	No	Treatment Plant	-	-	Active
WELL # 5 TREATMENT PLANT	26	No	Treatment Plant	-	-	Inactive
WELL # 10 WATER TREATMENT PLANT	27	No	Treatment Plant	-	-	Inactive

1 - 46 of 46

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PECUNIT STREET TREATMENT PLANT	25	Fluoridation	Other
PECUNIT STREET TREATMENT PLANT	25	pH Adjustment	Corrosion control
PECUNIT STREET TREATMENT PLANT	25	Aeration, Packed Tower	Iron removal
PECUNIT STREET TREATMENT PLANT	25	Filtration, Greensand	Manganese removal
PECUNIT STREET TREATMENT PLANT	25	pH Adjustment, Post	Corrosion control
PECUNIT STREET TREATMENT PLANT	25	Chloramines	Disinfection by-products control
PECUNIT STREET TREATMENT PLANT	25	Fluoridation	Other
PECUNIT STREET TREATMENT PLANT	25	Hypochlorination, Post	Disinfection
PECUNIT STREET TREATMENT PLANT	25	Permanganate	Iron removal
PECUNIT STREET TREATMENT PLANT	25	Activated Carbon, Granular	Organics removal
WELL # 5 TREATMENT PLANT	26	Fluoridation	Other
WELL # 5 TREATMENT PLANT	26	pH Adjustment	Corrosion control
WELL # 10 WATER TREATMENT PLANT	27	Fluoridation	Other
WELL # 10 WATER TREATMENT PLANT	27	pH Adjustment	Corrosion control
NEPONSET STREET TREATMENT PLANT	39	pH Adjustment, Post	Corrosion control
NEPONSET STREET TREATMENT PLANT	39	Gaseous Chlorination, Post	Disinfection
NEPONSET STREET TREATMENT PLANT	39	Aeration, Cascade	Iron removal
NEPONSET STREET TREATMENT PLANT	39	Chloramines	Disinfection by-products control
NEPONSET STREET TREATMENT PLANT	39	Fluoridation	Other
NEPONSET STREET TREATMENT PLANT	39	Coagulation	Organics removal
NEPONSET STREET TREATMENT PLANT	39	Chlorine Dioxide	Other
NEPONSET STREET TREATMENT PLANT	39	Filtration, Ultrafiltration	Particulate removal
NEPONSET STREET TREATMENT PLANT	39	Activated Carbon, Granular	Other
NEPONSET STREET TREATMENT PLANT	39	4-Log Treatment of Viruses	Disinfection

1 - 24 of 24

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.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions