Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA2002000
PWS Name	ACTON WATER SUPPLY DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Groundwater under influence of surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	21285
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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	108	Returned to Compliance	01-MAR-2024	31-MAR-2024	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	76	Returned to Compliance	01-DEC-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	75	Returned to Compliance	01-OCT-2014	31-OCT-2014	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	74	Returned to Compliance	01-AUG-2014	31-AUG-2014	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	73	Returned to Compliance	01-JUL-2014	31-JUL-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	72	Returned to Compliance	01-NOV-2013	30-NOV-2013	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	71	Returned to Compliance	01-SEP-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	70	Returned to Compliance	01-AUG-2011	31-AUG-2011	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	69	Returned to Compliance	01-JUN-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	68	Returned to Compliance	01-OCT-2010	31-OCT-2010	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	67	Returned to Compliance	01-APR-2010	30-APR-2010	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	65	Returned to Compliance	01-SEP-2009	30-SEP-2009	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	66	Returned to Compliance	01-SEP-2009	30-SEP-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	64	Returned to Compliance	01-MAR-2009	31-MAR-2009	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	61	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	52	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	51	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	54	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	39	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	46	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	53	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	59	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	43	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	50	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	40	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	44	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	42	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	48	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	41	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	45	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	55	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	47	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	57	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	56	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	49	Returned to Compliance	01-APR-2007	30-JUN-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	38	Known	01-JUL-2006	30-SEP-2006	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	05V0004	Returned to Compliance	01-JUL-2005	31-JUL-2005	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	05V0003	Returned to Compliance	01-JUN-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	05V0002	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	05V0001	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	04V0001	Returned to Compliance	01-JAN-2004	31-JAN-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	99V0001	Known	01-AUG-1999	31-AUG-1999	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	98V0001	Returned to Compliance	01-JUN-1998	30-JUN-1998	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	97V0064	Returned to Compliance	01-SEP-1997	30-SEP-1997	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0063	Returned to Compliance	01-SEP-1997	30-SEP-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Returned to Compliance	01-NOV-1996	30-NOV-1996	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	97V0054	Known	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	97V0055	Known	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	97V0056	Known	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	97V0057	Known	01-JUL-1996	30-SEP-1996	No

1 - 50 of 71

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
79	108	SOX	State Compliance achieved	28-AUG-2024	State	M&R RTCR MULT 12, RW-M12(MAR 2024)
67	76	SOX	State Compliance achieved	03-MAR-2015	State	TCR MONTHLY MAX. (MCL) FOR DECEMBER 2014
65	75	SOX	State Compliance achieved	31-DEC-2014	State	TCR MONTHLY MAX. (MCL) FOR OCTOBER 2014
63	74	SOX	State Compliance achieved	08-DEC-2014	State	SWTR M&R AUG 2014 - RTC
61	73	SOX	State Compliance achieved	05-SEP-2014	State	TCR MONTHLY MAX. (MCL) FOR JULY 2014
59	72	SOX	State Compliance achieved	13-DEC-2013	State	TCR MONTHLY MAX. (MCL) FOR NOVEMBER 2013
57	71	SOX	State Compliance achieved	16-OCT-2012	State	TCR MONTHLY MAX. (MCL) FOR SEPTEMBER 2012
52	70	SOX	State Compliance achieved	27-OCT-2011	State	TCR MONTHLY (MAX.) MCL FOR AUGUST 2011
49	69	SOX	State Compliance achieved	14-SEP-2011	State	TCR MONTHLY MAX. (MCL) FOR JUNE 2011
45	68	SOX	State Compliance achieved	16-NOV-2010	State	TCR MONTHLY MAX. (MCL) FOR OCT. 2010
42	67	SOX	State Compliance achieved	14-JUL-2010	State	TCR MONTHLY MAX. MCL FOR APRIL 2010
46	50	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	51	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	52	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	54	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	55	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	56	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	57	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	59	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	61	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	49	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	48	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	47	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	46	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	45	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	44	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	43	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	42	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	41	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	40	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	39	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
46	53	SOX	State Compliance achieved	08-FEB-2010	State	Q207-VOC RW-03G, RW-04G, MULT7, RW-M7S (1,4-DIOX); 4/07 PERCHL 02G, 09G, MULT5, MULT7, MULT8, MULT9
40	65	SOX	State Compliance achieved	04-NOV-2009	State	TCR MONTHLY MCL & MINOR REPEAT FOR SEPT. 2009
40	66	SOX	State Compliance achieved	04-NOV-2009	State	TCR MONTHLY MCL & MINOR REPEAT FOR SEPT. 2009
37	64	SOX	State Compliance achieved	30-APR-2009	State	TCR MONTHLY MAX. (MCL) FOR MARCH 2009
33	38	SFL	State Administrative/Compliance Order without penalty issued	12-DEC-2006	State	M&R MULT4 - FLUORIDE-Q3-2006
27	05V0004	SOX	State Compliance achieved	09-AUG-2005	State	TCR MONTHLY VIOLATION FOR JULY
25	05V0003	SOX	State Compliance achieved	25-JUL-2005	State	TCR MONTHLY VIOLLATION FOR JUNE, 2005
23	05V0001	SOX	State Compliance achieved	14-OCT-2004	State	TCR ACUTE & MONTHLY VIOLATIONS FOR SEPTEMBER, 2004
23	05V0002	SOX	State Compliance achieved	14-OCT-2004	State	TCR ACUTE & MONTHLY VIOLATIONS FOR SEPTEMBER, 2004
21	04V0001	SOX	State Compliance achieved	10-MAR-2004	State	TCR - JAN 2004 MONTHLY MCL VIOLATION
10	99V0001	SFL	State Administrative/Compliance Order without penalty issued	10-NOV-1999	State	AUG'99 MONTHLY MCL VIOLATION/ RTC.
9	98V0001	SOX	State Compliance achieved	13-JUL-1998	State	MONTHLY MCL VIOLATION 6/98
7	97V0064	SOX	State Compliance achieved	11-DEC-1997	State	BACTERIA SEPT 97 MCL VIOLATION/ MINOR REPEAT VIOLATION
7	97V0063	SOX	State Compliance achieved	11-DEC-1997	State	BACTERIA SEPT 97 MCL VIOLATION/ MINOR REPEAT VIOLATION
6	97V0046	SFL	State Administrative/Compliance Order without penalty issued	31-MAR-1997	State	VOC Q3/96: MULT1;MULT2;MULT3 & RAW 03G/04G/05G/06G/08G)
6	97V0047	SFL	State Administrative/Compliance Order without penalty issued	31-MAR-1997	State	VOC Q3/96: MULT1;MULT2;MULT3 & RAW 03G/04G/05G/06G/08G)
6	97V0048	SFL	State Administrative/Compliance Order without penalty issued	31-MAR-1997	State	VOC Q3/96: MULT1;MULT2;MULT3 & RAW 03G/04G/05G/06G/08G)
6	97V0049	SFL	State Administrative/Compliance Order without penalty issued	31-MAR-1997	State	VOC Q3/96: MULT1;MULT2;MULT3 & RAW 03G/04G/05G/06G/08G)
6	97V0050	SFL	State Administrative/Compliance Order without penalty issued	31-MAR-1997	State	VOC Q3/96: MULT1;MULT2;MULT3 & RAW 03G/04G/05G/06G/08G)

1 - 50 of 70

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
ASSABET 1 WELL LOW LIFT STATION	5	Yes	Well	Ground water	Emergency	Inactive
CONANT BEDROCK WELL E	78	Yes	Well	Ground water	Permanent	Active
CONANT BEDROCK WELL D	76	Yes	Well	Ground water	Permanent	Active
ASSABET WELL 3	73	Yes	Well	Ground water	Permanent	Active
ASSABET WELL 1A REPLACEMENT WELL	60	Yes	Well	Ground water	Permanent	Active
ASSABET WELL 2 LOW LIFT STATION	6	Yes	Well	Ground water	Permanent	Active
CLAPP GP WELL 302	57	Yes	Well	Ground water	Permanent	Active
CLAPP GP WELL 102	56	Yes	Well	Ground water	Permanent	Active
SCRIBNER GP WELL #4	55	Yes	Well	Ground water	Permanent	Active
SCRIBNER GP WELL #3	54	Yes	Well	Ground water	Permanent	Active
SCRIBNER GP WELL #2	53	Yes	Well	Ground water	Permanent	Active
SCRIBNER GP WELL #1	51	Yes	Well	Ground water	Permanent	Active
ASSABET WELL 2A REPLACEMENT WELL	48	Yes	Well	Ground water	Permanent	Active
CONANT II GP WELL 5	44	Yes	Well	Ground water	Permanent	Active
CONANT II GP WELL 4	42	Yes	Well	Ground water	Permanent	Active
CONANT II GP WELL 3	40	Yes	Well	Ground water	Permanent	Active
CONANT II GP WELL 2	38	Yes	Well	Ground water	Permanent	Active
CONANT II GP WELL 1	36	Yes	Well	Ground water	Permanent	Active
LAWSBROOK LOW LIFT WELL	3	Yes	Well	Ground water	Permanent	Active
CONANT WELL #1	2	Yes	Well	Ground water	Permanent	Active
WHITCOMB WELL	1	Yes	Well	Ground water	Permanent	Active
MARSHALL TWF	9	Yes	Well	Ground water under the influence of surface water	Permanent	Active
CHRISTOFFERSON WELL LOW LIFT STATION	4	Yes	Well	Ground water under the influence of surface water	Permanent	Active
KENNEDY GP WELL #4	29	Yes	Well	Ground water under the influence of surface water	Permanent	Active
KENNEDY GP WELL #3	28	Yes	Well	Ground water under the influence of surface water	Permanent	Active
KENNEDY GP WELL #2	27	Yes	Well	Ground water under the influence of surface water	Permanent	Active
KENNEDY GP WELL #1	10	Yes	Well	Ground water under the influence of surface water	Permanent	Active
SCRIBNER WELL LOW LIFT STATION	8	Yes	Well	Ground water	Emergency	Inactive
CLAPP WELL	7	Yes	Well	Ground water	Emergency	Inactive
CLAPP/WHITCOMB WELL PUMP	11	No	Pump Facility	-	-	Active
WHITCOMB WELL PUMP	12	No	Pump Facility	-	-	Active
CONANT WELL PUMP	13	No	Pump Facility	-	-	Active
LAWSBROOK LOW LIFT WELL PUMP	14	No	Pump Facility	-	-	Active
SCRIBNER WELL LOW LIFT STATION PUMP	15	No	Pump Facility	-	-	Active
CHRISTOFFERSON WELL LOW LIFT STATION	16	No	Pump Facility	-	-	Active
ASSABET 2 WELL LOW LIFT STATION PUMP	18	No	Pump Facility	-	-	Active
ASSABET # 1 WELL LOW LIFT STATION PUMP	26	No	Pump Facility	-	-	Active
CONANT II GPW 1 PUMP STATION	37	No	Pump Facility	-	-	Active
CONANT II GPW 2 PUMP STATION	39	No	Pump Facility	-	-	Active
CONANT II GPW 4 PUMP STATION	41	No	Pump Facility	-	-	Active
CONANT II GPW 3 PUMP STATION	43	No	Pump Facility	-	-	Active
CONANT II GPW 5 PUMP STATION	45	No	Pump Facility	-	-	Active
ASSABET WELL 2A REPLACEMENT WELL PUMP	49	No	Pump Facility	-	-	Active
CONANT II COMBINED PUMP STATION	50	No	Pump Facility	-	-	Active
CLAPP WELL 3 PUMP	58	No	Pump Facility	-	-	Active
CLAPP WELL1 PUMP	59	No	Pump Facility	-	-	Active
ASSABET WELL 1A REPLACEMENT PUMP	61	No	Pump Facility	-	-	Active
ASSABET HIGH HEAD PUMPING STATION	64	No	Pump Facility	-	-	Active
KENNEDY GP WELL 1 PUMP	65	No	Pump Facility	-	-	Active
KENNEDY GP WELL 2 PUMP	66	No	Pump Facility	-	-	Active

1 - 50 of 78

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SCHOOL STREET AERATION PLANT	19	Hypochlorination, Pre	Disinfection
SCHOOL STREET AERATION PLANT	19	Fluoridation	Other
SCHOOL STREET AERATION PLANT	19	Aeration, Packed Tower	Organics removal
ASSABET TREATMENT PLANT	20	Hypochlorination, Post	Disinfection
ASSABET TREATMENT PLANT	20	Fluoridation	Other
ASSABET TREATMENT PLANT	20	Aeration, Packed Tower	Organics removal
KENNEDY AERATION TREATMENT FACILITY	30	Aeration, Packed Tower	Organics removal
KENNEDY AERATION TREATMENT FACILITY	30	Fluoridation	Other
KENNEDY AERATION TREATMENT FACILITY	30	Hypochlorination, Pre	Disinfection
MARSHALL WELLFIELD	33	Fluoridation	Other
CONANT WELL # 1 TREATMENT PLANT	35	Hypochlorination, Post	Disinfection
CONANT WELL # 1 TREATMENT PLANT	35	Fluoridation	Other
CONANT WELL # 1 TREATMENT PLANT	35	pH Adjustment	Corrosion control
CENTRAL ACTON WATER TREATMENT PLANT	46	pH Adjustment	Corrosion control
CENTRAL ACTON WATER TREATMENT PLANT	46	Filtration, Greensand	Inorganics removal
CENTRAL ACTON WATER TREATMENT PLANT	46	Hypochlorination, Post	Disinfection
CENTRAL ACTON WATER TREATMENT PLANT	46	4-Log Treatment of Viruses	Disinfection
CENTRAL ACTON WATER TREATMENT PLANT	46	Activated Carbon, Granular	Inorganics removal
CENTRAL ACTON WATER TREATMENT PLANT	46	Hypochlorination, Pre	Disinfection
CENTRAL ACTON WATER TREATMENT PLANT	46	Fluoridation	Other
CENTRAL ACTON WATER TREATMENT PLANT	46	Aeration, Packed Tower	Corrosion control
CLAPP/WHITCOMB TREATMENT PLANT	47	Activated Carbon, Granular	Inorganics removal
CLAPP/WHITCOMB TREATMENT PLANT	47	pH Adjustment, Post	Corrosion control
CLAPP/WHITCOMB TREATMENT PLANT	47	Aeration, Packed Tower	Organics removal
CLAPP/WHITCOMB TREATMENT PLANT	47	Activated Carbon, Granular	Organics removal
CLAPP/WHITCOMB TREATMENT PLANT	47	Hypochlorination, Post	Disinfection
CLAPP/WHITCOMB TREATMENT PLANT	47	Fluoridation	Other
NORTH ACTON WATER TREATMENT PLANT	63	Innovative	Inorganics removal
NORTH ACTON WATER TREATMENT PLANT	63	Innovative	Particulate removal
NORTH ACTON WATER TREATMENT PLANT	63	Aeration, Packed Tower	Organics removal
NORTH ACTON WATER TREATMENT PLANT	63	Fluoridation	Other
NORTH ACTON WATER TREATMENT PLANT	63	Permanganate	Manganese removal
NORTH ACTON WATER TREATMENT PLANT	63	Coagulation	Particulate removal
NORTH ACTON WATER TREATMENT PLANT	63	pH Adjustment, Post	Corrosion control
NORTH ACTON WATER TREATMENT PLANT	63	Hypochlorination, Post	Disinfection
NORTH ACTON WATER TREATMENT PLANT	63	Activated Carbon, Granular	Organics removal
SOUTH ACTON WATER TREATMENT PLANT	72	Aeration, Packed Tower	Organics removal
SOUTH ACTON WATER TREATMENT PLANT	72	pH Adjustment, Pre	Inorganics removal
SOUTH ACTON WATER TREATMENT PLANT	72	Innovative	Inorganics removal
SOUTH ACTON WATER TREATMENT PLANT	72	Rapid Mix	Particulate removal
SOUTH ACTON WATER TREATMENT PLANT	72	Flocculation	Particulate removal
SOUTH ACTON WATER TREATMENT PLANT	72	Filtered	Particulate removal
SOUTH ACTON WATER TREATMENT PLANT	72	Hypochlorination, Pre	Disinfection
SOUTH ACTON WATER TREATMENT PLANT	72	Fluoridation	Other
SOUTH ACTON WATER TREATMENT PLANT	72	Activated Carbon, Granular	Organics removal
NAGOG TANK (EMERGENCY CHLORINE)	75	Hypochlorination, Post	Disinfection

1 - 46 of 46

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