Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA2174000
PWS Name	MAYNARD DPW, WATER DIVISION
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	10401
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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	72	Returned to Compliance	29-SEP-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	68	Returned to Compliance	30-DEC-2017	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	67	Returned to Compliance	01-OCT-2017	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	63	Returned to Compliance	01-APR-2017	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	62	Returned to Compliance	29-SEP-2016	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	61	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	60	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	59	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	58	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	57	Returned to Compliance	01-JUL-2015	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	55	Returned to Compliance	30-DEC-2014	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	14	Returned to Compliance	01-JUL-2007	-	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	2	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	10	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	4	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	9	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	7	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	12	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	11	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	3	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	1	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	13	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	5	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	00V0001	Known	01-OCT-1999	31-OCT-1999	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	98V0144	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	98V0109	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	98V0110	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	98V0158	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	98V0157	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	98V0159	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	98V0143	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	98V0142	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	98V0141	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	98V0140	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	98V0146	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	98V0136	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	98V0134	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	98V0133	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	98V0132	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	98V0131	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	98V0130	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	98V0129	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	98V0127	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	98V0126	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	98V0125	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	98V0124	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	98V0123	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	98V0122	Returned to Compliance	01-APR-1998	30-JUN-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	98V0121	Returned to Compliance	01-APR-1998	30-JUN-1998	No

1 - 50 of 187

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
69	72	SOX	State Compliance achieved	01-AUG-2025	State	LCR CN DELIVERED LATE FOR JAN-JUN 2024 PERIOD
60	67	SOX	State Compliance achieved	09-OCT-2018	State	M&R LCR 30 TAPS Q3 2017
59	68	SOX	State Compliance achieved	13-JUL-2018	State	LCR CN DELIVERED LATE FOR JUN-SEP 2017 PERIOD
61	62	SOX	State Compliance achieved	10-JUL-2017	State	LCR CN JAN-JUN 2016 MP & JUL-DEC 2016
61	63	SOX	State Compliance achieved	10-JUL-2017	State	LCR CN JAN-JUN 2016 MP & JUL-DEC 2016
53	61	SOX	State Compliance achieved	06-FEB-2017	State	TTHM MCL VIOLATIONS Q4-2015 Q1-2016, Q2-2016, Q3-2016
53	59	SOX	State Compliance achieved	06-FEB-2017	State	TTHM MCL VIOLATIONS Q4-2015 Q1-2016, Q2-2016, Q3-2016
53	58	SOX	State Compliance achieved	06-FEB-2017	State	TTHM MCL VIOLATIONS Q4-2015 Q1-2016, Q2-2016, Q3-2016
53	60	SOX	State Compliance achieved	06-FEB-2017	State	TTHM MCL VIOLATIONS Q4-2015 Q1-2016, Q2-2016, Q3-2016
56	57	SOX	State Compliance achieved	20-DEC-2015	State	LCR M&R Q3 2015
47	55	SOX	State Compliance achieved	30-MAR-2015	State	OEL REPORT NOT SUBMITTED Q3 2014 HAA5 DBP2
41	14	SOX	State Compliance achieved	16-DEC-2009	State	LCR Q2 2007, MPA Q2 2007
43	1	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	2	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	3	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	4	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	5	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	6	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	7	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	9	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	10	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	11	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	12	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
43	13	SOX	State Compliance achieved	30-JUN-2008	State	MPA RW-03G 4-5/07, LCR 60 TAPS 1-6/07, IOC MULT2 Q1 07
40	98V0141	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0142	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0143	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0144	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0146	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0157	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0158	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0159	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0160	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0140	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0136	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0134	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0133	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0132	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0131	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0130	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0129	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0127	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0126	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0125	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0124	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0123	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0122	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0121	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0120	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998
40	98V0119	SOX	State Compliance achieved	09-NOV-2005	State	LCR JAN-JUN98 & SOC Q2 1998

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WHITE POND	2	Yes	Intake	Surface water	Emergency	Inactive
GP WELL 4	4	Yes	Well	Ground water	Permanent	Active
WELLFIELD 4A (4 GP WELLS)	28	Yes	Well	Ground water	Permanent	Active
ROCK WELL 5	19	Yes	Well	Ground water	Permanent	Active
ROCK WELL 3	18	Yes	Well	Ground water	Permanent	Active
ROCK WELL 2	17	Yes	Well	Ground water	Permanent	Active
OLD MARLBORO RD GP WELLS 1 AND 1A	1	Yes	Well	Ground water	Permanent	Active
GP WELL 3 OLD MARLBORO ROAD	3	Yes	Well	Ground water	Emergency	Inactive
GP WELL 1A SATELLITE OLD MARLBORO RD	15	Yes	Well	Ground water	Emergency	Inactive
ROCK WELL #2 WELL (05G)	22	No	Pump Facility	-	-	Active
ROCK WELL #5 (WELL 07G)	24	No	Pump Facility	-	-	Active
GP WELL #1A 02G	26	No	Pump Facility	-	-	Active
ROCK WELL #3 (06G)	27	No	Pump Facility	-	-	Active
WELLFIELD 4A (4 GP WELLS) PUMP	29	No	Pump Facility	-	-	Active
WELLFIELD 4A (4 GP WELLS) PUMP	31	No	Pump Facility	-	-	Active
WELLFIELD 4A (4 GP WELLS) PUMP	32	No	Pump Facility	-	-	Active
WELLFIELD 4A (4 GP WELLS) PUMP	33	No	Pump Facility	-	-	Active
GP WELL # 1 OLD MARLBORO ROAD 01G	5	No	Pump Facility	-	-	Active
GP WELL # 3 PUMP OLD MARLBORO RD 03G	6	No	Pump Facility	-	-	Active
GP WELL # 4 PUMP GREAT ROAD 04G	7	No	Pump Facility	-	-	Active
WINTER STREET PUMP STATION	8	No	Pump Facility	-	-	Active
GP WELL #2 (1A) OLD MARLBORO RD PUMP 02G	16	No	Pump Facility	-	-	Inactive
ROCK WELL #3 WELL (06G)	23	No	Pump Facility	-	-	Inactive
3MG TOWER ROAD STORAGE TANK	10	No	Storage	-	-	Active
ROCKLAND AVE WTP CLEARWELL	30	No	Storage	-	-	Active
1.5 MG TOWER ROAD STORAGE TANK	9	No	Storage	-	-	Active
OLD MARLBORO RD WATER TREATMENT PLANT	13	No	Treatment Plant	-	-	Active
ROCKLAND AVE TREATMENT PLANT	20	No	Treatment Plant	-	-	Active
GREEN MEADOW TREATMENT PLANT	21	No	Treatment Plant	-	-	Active
WELLS 1 AND 1A PRE FILITRATION FACILITY	25	No	Treatment Plant	-	-	Active
WHITE POND TREATMENT PLANT	12	No	Treatment Plant	-	-	Inactive

1 - 31 of 31

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
OLD MARLBORO RD WATER TREATMENT PLANT	13	pH Adjustment	Corrosion control
OLD MARLBORO RD WATER TREATMENT PLANT	13	pH Adjustment, Post	Corrosion control
OLD MARLBORO RD WATER TREATMENT PLANT	13	Hypochlorination, Post	Disinfection
OLD MARLBORO RD WATER TREATMENT PLANT	13	Filtration, Greensand	Inorganics removal
OLD MARLBORO RD WATER TREATMENT PLANT	13	Permanganate	Disinfection by-products control
OLD MARLBORO RD WATER TREATMENT PLANT	13	Inhibitor, Orthophosphate	Corrosion control
ROCKLAND AVE TREATMENT PLANT	20	Aeration, Packed Tower	Radionuclides removal
ROCKLAND AVE TREATMENT PLANT	20	Filtration, Greensand	Inorganics removal
ROCKLAND AVE TREATMENT PLANT	20	Hypochlorination, Pre	Disinfection
ROCKLAND AVE TREATMENT PLANT	20	Inhibitor, Orthophosphate	Corrosion control
GREEN MEADOW TREATMENT PLANT	21	Filtration, Greensand	Inorganics removal
GREEN MEADOW TREATMENT PLANT	21	pH Adjustment	Corrosion control
GREEN MEADOW TREATMENT PLANT	21	pH Adjustment, Post	Corrosion control
GREEN MEADOW TREATMENT PLANT	21	Hypochlorination, Pre	Disinfection
GREEN MEADOW TREATMENT PLANT	21	Hypochlorination, Post	Disinfection
GREEN MEADOW TREATMENT PLANT	21	4-Log Treatment of Viruses	Disinfection
GREEN MEADOW TREATMENT PLANT	21	Inhibitor, Orthophosphate	Corrosion control
WELLS 1 AND 1A PRE FILITRATION FACILITY	25	Permanganate	Disinfection by-products control

1 - 18 of 18

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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