Safe Drinking Water Information System (SDWIS) Federal Reporting Services

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PWS ID	NH2521010
PWS Name	WILTON WATER WORKS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1790
County Served	Hillsborough

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	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	9500011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	9501011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9500010	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	9520011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	9519011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	9518011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	9517011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	9516011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	9515011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	9514011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9513011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	9512011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	9511011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	9510011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9509011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9508011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	9507011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	9506011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	9505011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	9504011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9503011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	9502011	Returned to Compliance	01-JAN-1995	31-DEC-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9400007	Known	01-SEP-1994	30-SEP-1994	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	9400008	Returned to Compliance	01-JAN-1994	03-JUL-1995	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9400006	Known	01-JAN-1994	31-JAN-1994	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9200003	Known	01-APR-1992	30-APR-1992	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	9200004	Known	01-MAR-1992	31-MAR-1992	No

1 - 27 of 27

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9700022	9507011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9519011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9518011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9517011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9516011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9500010	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9500011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9501011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9502011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9503011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9504011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9505011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9506011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9520011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9508011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9509011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9510011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9511011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9512011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9513011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9514011	SOX	State Compliance achieved	17-OCT-1996	State	-
9700022	9515011	SOX	State Compliance achieved	17-OCT-1996	State	-
9500023	9400008	SOX	State Compliance achieved	03-JUL-1995	State	-
9400015	9400007	SIF	State Public Notification received	25-SEP-1994	State	-
9400011	9400006	SIF	State Public Notification received	09-MAR-1994	State	-
9200007	9200004	SIF	State Public Notification received	13-JUL-1992	State	-
9200004	9200003	SIE	State Public Notification requested	19-MAY-1992	State	-

1 - 27 of 27

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MILL BR. (GAERWIN) SURF	1	Yes	Intake	Surface water	Permanent	Inactive
ABBOTT GPW /400' N OF PH 400' E OF RTE 31	6	Yes	Well	Ground water	Permanent	Active
EVERETT GPW /IN PH	5	Yes	Well	Ground water	Permanent	Active
STOCKWELL BROOK	2	Yes	Intake	Surface water	Permanent	Inactive
PUMPHOUSE /EVERETT /GPW 005	505	No	Treatment Plant	-	-	Active
PUMPHOUSE /EVERETT /GPW 006	506	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PUMPHOUSE /EVERETT /GPW 005	505	Hypochlorination, Post	Disinfection
PUMPHOUSE /EVERETT /GPW 005	505	Inhibitor, Polyphosphate	Corrosion control
PUMPHOUSE /EVERETT /GPW 005	505	pH Adjustment, Post	Corrosion control
PUMPHOUSE /EVERETT /GPW 006	506	Hypochlorination, Post	Disinfection
PUMPHOUSE /EVERETT /GPW 006	506	Inhibitor, Polyphosphate	Corrosion control
PUMPHOUSE /EVERETT /GPW 006	506	pH Adjustment, Post	Corrosion control

1 - 6 of 6

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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