U.S. flag

An official website of the United States government

Contact Us

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Related Topics: EPA Home » Your Drinking Water » SDWIS Federal Reporting Services » Report Options » SDWIS PWS Search

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMA2115001
PWS NameWEST GROTON WATER SUPPLY DISTRICT
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served1853
County ServedMiddlesex

Note

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.

PWS Violation

Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)5Returned to Compliance01-NOV-201230-NOV-2012Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)4Returned to Compliance01-OCT-201231-OCT-2012Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)3Returned to Compliance01-JUN-201230-JUN-2012Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)2Returned to Compliance01-SEP-201130-SEP-2011Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1Returned to Compliance01-NOV-201030-NOV-2010Yes
MRMonitoring, RegularVolatile Organic ChemicalsCHLOROBENZENE97V0051Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsTetrachloroethylene97V0049Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,1,2-Trichloroethane97V0047Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsBenzene97V0052Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsToluene97V0053Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsEthylbenzene97V0054Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsStyrene97V0057Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,2,4-Trichlorobenzene97V0011Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsTrichloroethylene97V0046Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,2-Dichloropropane97V0045Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsCarbon tetrachloride97V0044Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,1,1-Trichloroethane97V0043Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,2-Dichloroethane97V0042Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicalstrans-1,2-Dichloroethylene97V0041Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicals1,1-Dichloroethylene97V0039Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsVinyl chloride97V0038Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicalsp-Dichlorobenzene97V0037Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicalso-Dichlorobenzene97V0036Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsDICHLOROMETHANE97V0032Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic ChemicalsXylenes, Total97V0030Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularVolatile Organic Chemicalscis-1,2-Dichloroethylene97V0012Returned to Compliance01-JUL-199630-SEP-1996No
MRMonitoring, RegularNitrate RuleNitrate97V0001Known01-APR-199630-JUN-1996No
  • 1 - 27 of 27

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
195SOXState Compliance achieved08-JAN-2013StateTCR MONTHLY MAX. (MCL) FOR OCTOBER & NOVEMBER 2012
194SOXState Compliance achieved08-JAN-2013StateTCR MONTHLY MAX. (MCL) FOR OCTOBER & NOVEMBER 2012
173SOXState Compliance achieved19-JUL-2012StateTCR MONTHLY MAX. (MCL) FOR JUNE 2012
152SOXState Compliance achieved27-OCT-2011StateTCR MONTHLY MAX. MCL FOR SEPTEMBER 2011
131SOXState Compliance achieved04-FEB-2011StateTCR MONTHLY MAX. (MCL) FOR NOVEMBER 2010
497V0038SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0039SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0041SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0042SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0043SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0044SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0045SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0046SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0047SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0049SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0051SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0052SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0053SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0054SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0057SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0037SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0036SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0032SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0030SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0012SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
497V0011SOXState Compliance achieved08-SEP-1997StateNITRATE Q2 96; VOC Q3 96
397V0001SFLState Administrative/Compliance Order without penalty issued31-MAR-1997StateNITRATES Q2 96; VOC Q3 96
  • 1 - 27 of 27

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
TUBULAR WELL FIELD (47 X 2.5")1YesWell Ground waterEmergencyInactive
TOWN FOREST GP WELL5YesWell Ground waterPermanentActive
TOWNSEND RD WELLFIELD (4 GP WELLS)10YesWell Ground waterPermanentActive
TOWN FOREST GP WELL PUMP6NoPump Facility - - Active
ACADEMY HILL BOOSTER PUMP STATION9NoPump Facility - - Active
TUBULAR WELL FIELD (47 X 2.5") PUMP2NoPump Facility - - Inactive
KEMP STREET .211 MG STANDPIPE3NoStorage - - Active
TOWNSEND ROAD STORAGE TANK8NoStorage - - Active
TOWNSEND RD WTP11NoTreatment Plant - - Active
TOWN FOREST WTP7NoTreatment Plant - - Active
TUBULAR WELLFIELD TREATMENT PLANT4NoTreatment Plant - - Inactive
  • 1 - 11 of 11

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TOWNSEND RD WTP11Inhibitor, HexametaphosphateCorrosion control
TOWNSEND RD WTP11Hypochlorination, PostDisinfection
TOWNSEND RD WTP11pH AdjustmentCorrosion control
TUBULAR WELLFIELD TREATMENT PLANT4Inhibitor, HexametaphosphateCorrosion control
TOWN FOREST WTP7Inhibitor, HexametaphosphateCorrosion control
TOWN FOREST WTP7pH AdjustmentCorrosion control
TOWN FOREST WTP7Hypochlorination, PreDisinfection
  • 1 - 7 of 7
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.