Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MA4018000
PWS Name	TOWN OF AVON
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	4777
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
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	32	Returned to Compliance	01-JUN-2016	30-JUN-2016	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	30	Returned to Compliance	01-JUL-2015	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	28	Returned to Compliance	01-NOV-2010	30-NOV-2010	Yes
TT	Treatment Technique (SWTR and GWR)	Ground Water Rule	Groundwater Rule	29	Known	01-MAY-2010	31-MAY-2010	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	6	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	15	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	22	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	27	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	18	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	17	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	20	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	5	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	12	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	19	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	25	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	16	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	10	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	8	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	14	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	7	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	11	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	21	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	13	Known	01-OCT-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	23	Known	01-OCT-2008	31-DEC-2008	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	2	Returned to Compliance	01-OCT-2007	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3	Returned to Compliance	01-AUG-2007	31-AUG-2007	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	04V0001	Known	01-NOV-2003	30-NOV-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	04V0052	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	04V0053	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	04V0054	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	04V0055	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	04V0056	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	04V0057	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	04V0058	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	04V0059	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	04V0060	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	04V0061	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	04V0062	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	04V0040	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	04V0041	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	04V0002	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	04V0003	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	04V0004	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	04V0005	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	04V0006	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	04V0007	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	04V0008	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	04V0009	Known	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	04V0010	Known	01-OCT-2003	31-DEC-2003	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
28	32	SFL	State Administrative/Compliance Order without penalty issued	26-OCT-2020	State	GWR - FAILURE TO COLLECT TRIGGERED RAW SAMPLES
22	30	SFJ	State Formal Notice of Violation issued	04-AUG-2015	State	CCR CERT 7/10/2015
19	29	SFO	State Administrative/Compliance Order with penalty issued	17-JAN-2014	State	$46,800 OF PENALTY SUSPENDED PENDING EMS PLAN IN 12 MOS
18	28	SOX	State Compliance achieved	18-FEB-2011	State	TCR: MONMCL NOVEMBER 2010
16	5	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	27	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	7	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	8	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	9	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	10	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	11	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	12	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	13	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	14	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	15	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	16	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	17	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	18	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	19	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	20	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	21	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	22	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	23	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	25	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
16	6	SFL	State Administrative/Compliance Order without penalty issued	01-APR-2009	State	NOTICE AND SAMPLE
15	2	SOX	State Compliance achieved	21-NOV-2008	State	-
13	3	SOX	State Compliance achieved	06-DEC-2007	State	TCR: MONMCL AUG'07
9	04V0002	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0062	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0003	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0004	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0005	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0006	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0007	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0008	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0009	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0010	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0011	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0012	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0013	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0014	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0015	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0016	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0017	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0018	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0019	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0020	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0021	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0022	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE
9	04V0023	SFL	State Administrative/Compliance Order without penalty issued	30-APR-2004	State	SAMPLE & NOTICE

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MEMORIAL GP WELL #2	2	Yes	Well	Ground water	Emergency	Active
TROUT BROOK WELLFIELD	6	Yes	Well	Ground water	Permanent	Active
CONNOLLY RD. GP WELL #4	5	Yes	Well	Ground water	Permanent	Active
THEATER GP WELL #3	4	Yes	Well	Ground water	Permanent	Active
PORTER WELL	3	Yes	Well	Ground water	Permanent	Active
SATELLITE WELLFIELD 3A, 3B, AND 3C	19	Yes	Well	Ground water	Permanent	Active
MEMORIAL GP WELL #1	1	Yes	Well	Ground water	Permanent	Active
PORTER WELL PUMP STATION	10	No	Pump Facility	-	-	Active
THEATER GP WELL #3 PUMP STATION	11	No	Pump Facility	-	-	Active
CONNOLLY RD.GP WELL #4 PUMP STATION	12	No	Pump Facility	-	-	Active
TROUT BROOK WELLFIELD PUMP STATION	17	No	Pump Facility	-	-	Active
SATELLITE WELLFIELD #3 PUMP STATION	20	No	Pump Facility	-	-	Active
MEMORIAL GP WELL #1 PUMP STATION	8	No	Pump Facility	-	-	Active
GP WELL # 2 PUMP	9	No	Pump Facility	-	-	Inactive
PAGE STREET STANDPIPE	13	No	Storage	-	-	Active
CENTRAL STREET STANDPIPE	7	No	Storage	-	-	Active
MEMORIAL CORROSION CONTROL FACILITY	14	No	Treatment Plant	-	-	Active
PORTER CORROSION CONTROL FACILITY	15	No	Treatment Plant	-	-	Active
TROUT BROOK CORROSION CONTROL FACILITY	16	No	Treatment Plant	-	-	Active
GUILBAULT MEMORIAL FILTRATION PLANT	18	No	Treatment Plant	-	-	Active

1 - 20 of 20

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
MEMORIAL CORROSION CONTROL FACILITY	14	pH Adjustment	Corrosion control
PORTER CORROSION CONTROL FACILITY	15	Hypochlorination, Pre	Disinfection
PORTER CORROSION CONTROL FACILITY	15	pH Adjustment	Corrosion control
PORTER CORROSION CONTROL FACILITY	15	4-Log Treatment of Viruses	Disinfection
TROUT BROOK CORROSION CONTROL FACILITY	16	pH Adjustment	Corrosion control
GUILBAULT MEMORIAL FILTRATION PLANT	18	Activated Carbon, Granular	Organics removal
GUILBAULT MEMORIAL FILTRATION PLANT	18	Filtration, Greensand	Iron removal
GUILBAULT MEMORIAL FILTRATION PLANT	18	Hypochlorination, Post	Disinfection
GUILBAULT MEMORIAL FILTRATION PLANT	18	Hypochlorination, Pre	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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