Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA2019000
PWS Name	AYER DPW WATER DIVISION
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	8479
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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	22	Returned to Compliance	01-JUL-2023	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	15	Returned to Compliance	01-JUL-2021	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	14	Returned to Compliance	01-JAN-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12	Returned to Compliance	01-JUL-2019	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	11	Returned to Compliance	30-DEC-2017	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	10	Returned to Compliance	01-APR-2013	-	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	9	Returned to Compliance	01-JAN-2010	31-MAR-2010	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6	Returned to Compliance	01-APR-2009	30-JUN-2009	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	5	Returned to Compliance	01-OCT-2007	31-DEC-2007	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3	Returned to Compliance	01-JUL-2006	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	00V0002	Returned to Compliance	01-SEP-2000	30-SEP-2000	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	00V0001	Returned to Compliance	01-MAR-2000	31-MAR-2000	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	99V0009	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	99V0004	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	99V0007	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	99V0006	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	99V0005	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	99V0003	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	99V0002	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	99V0001	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	99V0014	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	99V0013	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	99V0008	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	99V0012	Known	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	97V0001	Returned to Compliance	01-JUL-1996	30-SEP-1996	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	96V0001	Returned to Compliance	01-JUL-1995	30-SEP-1995	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	92V0001	Known	01-JUL-1992	08-JAN-1993	No

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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
49	22	SOX	State Compliance achieved	29-FEB-2024	State	Q2 2023 LCR 40 TAPS (39 ACCEPTED)
43	14	SOX	State Compliance achieved	28-NOV-2022	State	LCR-M/R WQP; Q2-2021 @3DS TAPS; Q4-2021 @EP BIWEEKLY ALK
43	15	SOX	State Compliance achieved	28-NOV-2022	State	LCR-M/R WQP; Q2-2021 @3DS TAPS; Q4-2021 @EP BIWEEKLY ALK
39	12	SOX	State Compliance achieved	16-SEP-2019	State	RTC FOR LATE CCR
37	11	SOX	State Compliance achieved	13-JUL-2018	State	LCR CN DELIVERED LATE FOR JUN-SEP 2017; CN & CERT RECVD 11/11/2017
35	10	SOX	State Compliance achieved	29-OCT-2013	State	M&R LCR 40 TAPS + 4 SCHOOL TAPS Q2 13
32	9	SOX	State Compliance achieved	18-MAY-2011	State	ARSENIC Q1 10 MULT, MULT 2
30	6	SOX	State Compliance achieved	11-SEP-2009	State	ARSENIC, IRON, MANGANESE MULT, MULT2 Q1 09
26	5	SOX	State Compliance achieved	09-JUN-2008	State	ARSENIC MULT1, MULT2 Q3 07
22	3	SOX	State Compliance achieved	13-JUL-2006	State	FAILURE TO SUBMIT 2005 CCR & CERT. FORM
20	1	SFJ	State Formal Notice of Violation issued	17-FEB-2006	State	M&R THM & HAA5 - AUG 2005. STATUTE OF LIMITATIONS CLOSED DATE.
20	2	SFJ	State Formal Notice of Violation issued	17-FEB-2006	State	M&R THM & HAA5 - AUG 2005. STATUTE OF LIMITATIONS CLOSED DATE.
15	00V0002	SOX	State Compliance achieved	13-NOV-2000	State	TCR MONTHLY MCL VIOLATION-SEPTEMBER 2000
12	00V0001	SOX	State Compliance achieved	26-JUN-2000	State	BACTERIA; MONTHLY MCL VIOLATION; MARCH 2000
8	99V0012	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0013	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0014	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0001	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0009	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0008	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0007	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0006	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0005	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0004	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0003	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
8	99V0002	SFL	State Administrative/Compliance Order without penalty issued	22-MAR-1999	State	IOC Q4 98
6	97V0001	SOX	State Compliance achieved	08-SEP-1997	State	NITRATE Q3 96
4	96V0001	SOX	State Compliance achieved	15-JAN-1997	State	ASBESTOS Q3/1995

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DEVENS INTERCONNECTION	32	Yes	Consecutive Connection	Ground water	Permanent	Active
SPECTACLE POND WELL 1B	33	Yes	Well	Ground water	Permanent	Active
SPECTACLE POND WELL 1	3	Yes	Well	Ground water	Permanent	Active
SPECTACLE POND WELL 2A	29	Yes	Well	Ground water	Permanent	Active
GROVE POND WELL 8	27	Yes	Well	Ground water	Permanent	Active
GROVE POND WELL 7	25	Yes	Well	Ground water	Permanent	Active
GROVE POND WELL 6	23	Yes	Well	Ground water	Permanent	Active
SPECTACLE POND WELL 2	4	Yes	Well	Ground water	Emergency	Inactive
SPECTACLE POND WELL 1A	20	Yes	Well	Ground water	Emergency	Inactive
GROVE POND WELL 2	2	Yes	Well	Ground water	Emergency	Inactive
GROVE POND WELL 1	1	Yes	Well	Ground water	Emergency	Inactive
GROVE POND WELL 2 PUMP	14	No	Pump Facility	-	-	Active
GROVE POND WELL 1 PUMP	15	No	Pump Facility	-	-	Active
CRABTREE BOOSTER PUMP STATION	18	No	Pump Facility	-	-	Active
STRATTON HILL SUB. BOOSTER PUMP STATION	19	No	Pump Facility	-	-	Active
WELL 6 PUMP	24	No	Pump Facility	-	-	Active
WELL 7 PUMP	26	No	Pump Facility	-	-	Active
SPECTACLE POND WELL 2A PUMP	30	No	Pump Facility	-	-	Active
SPECTACLE POND WELL 1B PUMP	35	No	Pump Facility	-	-	Active
SPECTACLE POND 1 WELL PUMP	16	No	Pump Facility	-	-	Inactive
SPECTACLE POND 2 WELL PUMP	17	No	Pump Facility	-	-	Inactive
SPECTACLE POND WELL 1A PUMP	21	No	Pump Facility	-	-	Inactive
WELL 8 PUMP	28	No	Pump Facility	-	-	Inactive
WASHINGTON STREET STORAGE TANK	13	No	Storage	-	-	Active
PINGRY HILL WATER STORAGE TANK	22	No	Storage	-	-	Active
WASHINGTON STREET STORAGE TANK #2	10	No	Storage	-	-	Inactive
WASHINGTON STREET STORAGE TANK #1	9	No	Storage	-	-	Inactive
SPECTACLE POND WATER TREATMENT PLANT	11	No	Treatment Plant	-	-	Active
GROVE POND WATER TREATMENT PLANT	12	No	Treatment Plant	-	-	Active
WELL 8 TREATMENT	31	No	Treatment Plant	-	-	Active
WASHINGTON ST. TANK	34	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SPECTACLE POND WATER TREATMENT PLANT	11	Hypochlorination, Pre	Disinfection
SPECTACLE POND WATER TREATMENT PLANT	11	Filtration, Pressure Sand	Particulate removal
SPECTACLE POND WATER TREATMENT PLANT	11	Filtration, Greensand	Inorganics removal
SPECTACLE POND WATER TREATMENT PLANT	11	pH Adjustment, Post	Corrosion control
SPECTACLE POND WATER TREATMENT PLANT	11	Hypochlorination, Post	Disinfection
SPECTACLE POND WATER TREATMENT PLANT	11	Activated Carbon, Granular	Organics removal
SPECTACLE POND WATER TREATMENT PLANT	11	Inhibitor, Orthophosphate	Corrosion control
GROVE POND WATER TREATMENT PLANT	12	Filtration, Pressure Sand	Particulate removal
GROVE POND WATER TREATMENT PLANT	12	Hypochlorination, Pre	Disinfection
GROVE POND WATER TREATMENT PLANT	12	Filtration, Greensand	Inorganics removal
GROVE POND WATER TREATMENT PLANT	12	pH Adjustment	Corrosion control
GROVE POND WATER TREATMENT PLANT	12	Innovative	Organics removal
GROVE POND WATER TREATMENT PLANT	12	Filtration, Cartridge	Particulate removal
GROVE POND WATER TREATMENT PLANT	12	Inhibitor, Orthophosphate	Corrosion control
GROVE POND WATER TREATMENT PLANT	12	Innovative	De-chlorination
WELL 8 TREATMENT	31	Filtration, Cartridge	Particulate removal
WELL 8 TREATMENT	31	Activated Carbon, Granular	Organics removal
WASHINGTON ST. TANK	34	Hypochlorination, Post	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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