Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	ME0091550
PWS Name	VINALHAVEN WATER DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	1053
County Served	Knox

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 of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	103239	Known	01-SEP-2025	30-SEP-2025	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103238	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103237	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103236	Known	01-OCT-2024	31-DEC-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103235	Known	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103233	Known	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103234	Known	01-JAN-2024	31-MAR-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103232	Known	01-OCT-2023	31-DEC-2023	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	103230	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	103231	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103225	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103224	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103221	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103220	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103218	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103219	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103216	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	103217	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	103215	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103214	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	103213	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103212	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103211	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103210	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103209	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	103208	Returned to Compliance	01-SEP-2007	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	102808	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	102708	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	102608	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	102507	Returned to Compliance	01-JAN-2007	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103108	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	103008	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	102407	Returned to Compliance	01-JUL-2006	31-DEC-2006	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	102908	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	102106	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	102206	Returned to Compliance	01-JAN-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	102006	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	101906	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	101805	Returned to Compliance	01-AUG-2005	31-AUG-2005	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	101705	Returned to Compliance	01-OCT-2004	31-OCT-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	101505	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	101304	Open	11-OCT-2003	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	101103	Returned to Compliance	01-SEP-2003	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	100802	Returned to Compliance	01-AUG-2002	31-AUG-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	100799	Returned to Compliance	01-JUL-1999	31-JUL-1999	Yes

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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
851669	103239	SIE	State Public Notification requested	27-OCT-2025	State	-
851667	103238	SIF	State Public Notification received	09-JUN-2025	State	-
851664	103234	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851664	103235	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851664	103233	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851664	103232	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851664	103236	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851664	103237	SFL	State Administrative/Compliance Order without penalty issued	28-MAY-2025	State	-
851640	103231	SFJ	State Formal Notice of Violation issued	09-MAY-2022	State	-
851639	103230	SFJ	State Formal Notice of Violation issued	09-MAY-2022	State	-
851630	100799	SO6	State Intentional no-action	03-AUG-2017	State	This violation should have had the PN requirement resolved (SO6'd) per the EPA Memorandum (Feb 2011) due to the statute of limitations, but was missed during that cleanup process; the violation has been given a SO6 for the PN requirement;
851632	103224	SIF	State Public Notification received	01-AUG-2012	State	-
851632	103225	SIF	State Public Notification received	01-AUG-2012	State	-
851625	103220	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103221	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103219	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103218	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103216	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103214	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103212	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103211	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103210	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103209	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103108	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	103008	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	102908	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	102808	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	102106	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	102608	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851625	102708	SOX	State Compliance achieved	30-MAY-2012	State	4 quarters of RAA below MCL.
851620	103213	SOX	State Compliance achieved	02-SEP-2011	State	-
851620	103208	SOX	State Compliance achieved	02-SEP-2011	State	-
851620	103215	SOX	State Compliance achieved	02-SEP-2011	State	-
851620	103217	SOX	State Compliance achieved	02-SEP-2011	State	-
851619	101505	SO6	State Intentional no-action	29-AUG-2011	State	-
851619	101705	SO6	State Intentional no-action	29-AUG-2011	State	-
851619	101103	SO6	State Intentional no-action	29-AUG-2011	State	-
851613	102407	SO6	State Intentional no-action	01-MAY-2009	State	-
851613	102507	SO6	State Intentional no-action	01-MAY-2009	State	-
851613	102206	SO6	State Intentional no-action	01-MAY-2009	State	-
850407	102006	SIF	State Public Notification received	22-FEB-2007	State	-
850407	101906	SIF	State Public Notification received	22-FEB-2007	State	-
849806	101805	SOX	State Compliance achieved	22-MAR-2006	State	sampled since violations, some PNs done
848402	100802	SOX	State Compliance achieved	16-SEP-2002	State	-

1 - 44 of 44

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
FOLLY POND, EMERGENCY BACKUP	4821	Yes	Intake	Surface water	Emergency	Inactive
NEW DRILLED WELL	4522	Yes	Well	Ground water	Emergency	Inactive
ROUND POND	4820	Yes	Intake	Surface water	Permanent	Active
STAGE 2 IDSE	14179	No	Distribution System/Zone	-	-	Active
DISTRIBUTION SYSTEM	8561	No	Distribution System/Zone	-	-	Active
HISTORICAL DATA	6225	No	Sampling Station	-	-	Active
GLASS LINED STAND PIPE - 2001	1121	No	Storage	-	-	Active
TREATMENT PLANT 1	1821	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT 1	1821	Hypochlorination, Post	Disinfection
TREATMENT PLANT 1	1821	Filtration, Cartridge	Particulate removal
TREATMENT PLANT 1	1821	Ultraviolet Radiation	Disinfection by-products control
TREATMENT PLANT 1	1821	Chlorination (FRDS-1.5)	Disinfection
TREATMENT PLANT 1	1821	pH Adjustment	Corrosion control
TREATMENT PLANT 1	1821	Inhibitor, Orthophosphate	Corrosion control

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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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