Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA3288000
PWS Name	SUDBURY WATER DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	18416
County Served	Middlesex

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, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	38	Open	01-AUG-2025	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	36	Open	01-JUN-2022	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	ENTEROCOCCI	34	Open	01-JUN-2019	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	35	Open	01-JUN-2018	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	33	Known	01-OCT-2014	31-OCT-2014	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	31	Returned to Compliance	01-MAR-2014	31-MAR-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	20	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	26	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	10	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	13	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	6	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	21	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	18	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	19	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	28	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	17	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	16	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	23	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	24	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	14	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	7	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	11	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	15	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	8	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	12	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	22	Returned to Compliance	01-JUN-2010	30-SEP-2010	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	29	Returned to Compliance	01-JAN-2010	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5	Returned to Compliance	01-SEP-2009	30-SEP-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4	Returned to Compliance	01-MAR-2009	31-MAR-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3	Known	01-JUL-2008	31-JUL-2008	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1	Returned to Compliance	01-JAN-2006	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	02V0032	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	02V0038	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	02V0028	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	02V0026	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	02V0025	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	02V0024	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	02V0023	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	02V0022	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	02V0021	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	02V0019	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	02V0018	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	02V0017	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	02V0016	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	02V0015	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	02V0014	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	02V0013	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	02V0012	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	02V0011	Returned to Compliance	01-JUL-2001	30-SEP-2001	No

1 - 50 of 196

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
54	38	SFL	State Administrative/Compliance Order without penalty issued	22-JAN-2026	State	NON FOR MISSED ASSESSMENT DEADLINE
52	36	SFL	State Administrative/Compliance Order without penalty issued	07-FEB-2023	State	FAILURE TO COLLECT 2 SCHOOL LCR SAMPLES
50	35	SFL	State Administrative/Compliance Order without penalty issued	25-FEB-2019	State	FAILURE TO PROVIDE CONSUMER NOTICE TO CUSTOMERS WITHIN 30 DAYS
45	33	SFL	State Administrative/Compliance Order without penalty issued	25-NOV-2014	State	TCR MINOR ROUTINE MONITORING VIOLATION FOR OCT. 2014
47	31	SOX	State Compliance achieved	17-MAY-2014	State	EPA RTC
43	29	SOX	State Compliance achieved	24-JUN-2011	State	-
46	24	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	28	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	22	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	21	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	20	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	19	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	18	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	17	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	16	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	15	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	14	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	13	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	12	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	11	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	10	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	9	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	8	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	7	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	6	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	23	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
46	26	SOX	State Compliance achieved	22-DEC-2010	State	EPA RTC
48	5	SOX	State Compliance achieved	31-OCT-2009	State	EPA RTC
49	4	SOX	State Compliance achieved	30-APR-2009	State	EPA RTC
36	3	SFL	State Administrative/Compliance Order without penalty issued	15-SEP-2008	State	MISSING BACT REPORT FOR JULY 2008
32	1	SOX	State Compliance achieved	10-JUL-2006	State	-
28	02V0033	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0034	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0036	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0038	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0049	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0050	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0051	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0032	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0028	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0026	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0025	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0024	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0023	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0022	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0021	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0019	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0018	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0017	SOX	State Compliance achieved	28-JUN-2002	State	-
28	02V0016	SOX	State Compliance achieved	28-JUN-2002	State	-

1 - 50 of 195

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
HOP BROOK TUBULAR WELLS	1	Yes	Well	Ground water	Emergency	Inactive
GP WELL 9	9	Yes	Well	Ground water	Permanent	Active
GP WELL 7	7	Yes	Well	Ground water	Permanent	Active
GP WELL 6	6	Yes	Well	Ground water	Permanent	Active
GP WELL 5	5	Yes	Well	Ground water	Permanent	Active
GP WELL 4	4	Yes	Well	Ground water	Permanent	Active
GP WELL 8A	37	Yes	Well	Ground water	Permanent	Active
GP WELL 3A	34	Yes	Well	Ground water	Permanent	Active
GP WELL 10	21	Yes	Well	Ground water	Permanent	Active
GP WELL 2A	2	Yes	Well	Ground water	Permanent	Active
GP WELL 8	8	Yes	Well	Ground water	Emergency	Inactive
GP WELL 3	3	Yes	Well	Ground water	Emergency	Inactive
GP WELL 2A PUMP	10	No	Pump Facility	-	-	Active
GP WELL 3A PUMP	11	No	Pump Facility	-	-	Active
GP WELL 4 PUMP	12	No	Pump Facility	-	-	Active
GP WELL # 5 PUMP	13	No	Pump Facility	-	-	Active
GP WELL 6 PUMP	14	No	Pump Facility	-	-	Active
GP WELL # 7 PUMP	15	No	Pump Facility	-	-	Active
GP WELL # 8 PUMP	16	No	Pump Facility	-	-	Active
GP WELL #10 PUMP	22	No	Pump Facility	-	-	Active
G.P. WELL #3A PUMP	35	No	Pump Facility	-	-	Active
WELL 8A PUMP	38	No	Pump Facility	-	-	Active
WELL 9	39	No	Pump Facility	-	-	Active
GOODMAN HILL STORAGE	17	No	Storage	-	-	Active
WILLIS HILL STORAGE	18	No	Storage	-	-	Active
BIGELOW HILL	19	No	Storage	-	-	Active
WILLIS HILL STORAGE	20	No	Storage	-	-	Active
EAST STREET WTP	23	No	Treatment Plant	-	-	Active
GP WELL NO 2A (INLINE)	24	No	Treatment Plant	-	-	Active
GP WELL NO 4 (INLINE)	26	No	Treatment Plant	-	-	Active
GP WELL NO 5 (INLINE)	27	No	Treatment Plant	-	-	Active
GP WELL NO 6 (INLINE)	28	No	Treatment Plant	-	-	Active
GP WELL NO 7 (INLINE)	29	No	Treatment Plant	-	-	Active
GP WELL NO 9(INLINE)	30	No	Treatment Plant	-	-	Active
GP WELL NO 10 (INLINE)	31	No	Treatment Plant	-	-	Active
RAYMOND ROAD WTP	32	No	Treatment Plant	-	-	Active
GP WELL #3A (INLINE)	36	No	Treatment Plant	-	-	Active
GP WELL # 3 (INLINE)	25	No	Treatment Plant	-	-	Inactive

1 - 38 of 38

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
EAST STREET WTP	23	Filtration, Greensand	Iron removal
EAST STREET WTP	23	Filtration, Greensand	Manganese removal
EAST STREET WTP	23	pH Adjustment, Pre	Iron removal
EAST STREET WTP	23	pH Adjustment	Iron removal
EAST STREET WTP	23	Fluoridation	Other
EAST STREET WTP	23	Gaseous Chlorination, Post	Disinfection
EAST STREET WTP	23	pH Adjustment	Corrosion control
EAST STREET WTP	23	pH Adjustment, Post	Corrosion control
GP WELL NO 2A (INLINE)	24	Aeration, Packed Tower	Organics removal
GP WELL # 3 (INLINE)	25	pH Adjustment	Corrosion control
GP WELL # 3 (INLINE)	25	Fluoridation	Other
GP WELL # 3 (INLINE)	25	Hypochlorination, Post	Disinfection
GP WELL NO 4 (INLINE)	26	Fluoridation	Other
GP WELL NO 4 (INLINE)	26	Hypochlorination, Post	Disinfection
GP WELL NO 4 (INLINE)	26	pH Adjustment	Corrosion control
GP WELL NO 6 (INLINE)	28	Fluoridation	Other
GP WELL NO 6 (INLINE)	28	Hypochlorination, Post	Disinfection
GP WELL NO 6 (INLINE)	28	pH Adjustment	Corrosion control
GP WELL NO 9(INLINE)	30	Aeration, Packed Tower	Organics removal
GP WELL NO 10 (INLINE)	31	Fluoridation	Other
GP WELL NO 10 (INLINE)	31	pH Adjustment	Corrosion control
RAYMOND ROAD WTP	32	Hypochlorination, Pre	Disinfection
RAYMOND ROAD WTP	32	Hypochlorination, Post	Disinfection
RAYMOND ROAD WTP	32	Fluoridation	Other
RAYMOND ROAD WTP	32	pH Adjustment	Corrosion control
RAYMOND ROAD WTP	32	Filtration, Greensand	Manganese removal
RAYMOND ROAD WTP	32	4-Log Treatment of Viruses	Disinfection

1 - 27 of 27

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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