Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NH0801010
PWS Name	EXETER WATER DEPT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	12236
County Served	Rockingham

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2600057	Known	01-OCT-2025	31-DEC-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1900056	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1900055	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1900054	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1900053	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1800052	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1800050	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1800051	Returned to Compliance	01-APR-2018	01-JUL-2018	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1800049	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1800048	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1700047	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1700046	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1700045	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1700044	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600043	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600042	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600041	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600040	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1500039	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1500038	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1400035	Open	04-JAN-2015	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1500037	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1500036	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1400034	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1200033	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1100032	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1100031	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1000030	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	0700029	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	0700028	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0700026	Returned to Compliance	01-DEC-2006	01-JAN-2007	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0700025	Returned to Compliance	01-NOV-2006	01-DEC-2006	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0700024	Returned to Compliance	01-NOV-2006	01-DEC-2006	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0600022	Returned to Compliance	01-JUL-2006	01-AUG-2006	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0600021	Returned to Compliance	01-JUL-2006	01-AUG-2006	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0600020	Returned to Compliance	01-JUN-2006	01-JUL-2006	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0600017	Returned to Compliance	01-MAY-2006	01-JUN-2006	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	0500016	Returned to Compliance	01-MAY-2006	01-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0400015	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0300014	Returned to Compliance	01-JAN-2003	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	9700012	Returned to Compliance	01-AUG-1997	31-AUG-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9700011	Returned to Compliance	01-JUL-1997	31-JUL-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9500003	Known	01-AUG-1995	31-AUG-1995	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	9523010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	9522010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	9500010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	9501010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	9502010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	9503010	Known	01-JAN-1995	31-DEC-1995	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	9504010	Known	01-JAN-1995	31-DEC-1995	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
2600189	2600057	SIF	State Public Notification received	05-DEC-2025	State	-
2000179	1600041	SOX	State Compliance achieved	06-NOV-2019	State	-
2000166	1900055	SOX	State Compliance achieved	06-NOV-2019	State	-
2000167	1900054	SOX	State Compliance achieved	06-NOV-2019	State	-
2000168	1900053	SOX	State Compliance achieved	06-NOV-2019	State	-
2000169	1800052	SOX	State Compliance achieved	06-NOV-2019	State	-
2000170	1800050	SOX	State Compliance achieved	06-NOV-2019	State	-
2000171	1800049	SOX	State Compliance achieved	06-NOV-2019	State	-
2000185	1400034	SOX	State Compliance achieved	06-NOV-2019	State	-
2000184	1500036	SOX	State Compliance achieved	06-NOV-2019	State	-
2000183	1500037	SOX	State Compliance achieved	06-NOV-2019	State	-
2000182	1500038	SOX	State Compliance achieved	06-NOV-2019	State	-
2000181	1500039	SOX	State Compliance achieved	06-NOV-2019	State	-
2000180	1600040	SOX	State Compliance achieved	06-NOV-2019	State	-
2000165	1900056	SOX	State Compliance achieved	06-NOV-2019	State	-
2000178	1600042	SOX	State Compliance achieved	06-NOV-2019	State	-
2000177	1600043	SOX	State Compliance achieved	06-NOV-2019	State	-
2000176	1700044	SOX	State Compliance achieved	06-NOV-2019	State	-
2000175	1700045	SOX	State Compliance achieved	06-NOV-2019	State	-
2000174	1700046	SOX	State Compliance achieved	06-NOV-2019	State	-
2000173	1700047	SOX	State Compliance achieved	06-NOV-2019	State	-
2000172	1800048	SOX	State Compliance achieved	06-NOV-2019	State	-
1800145	1800051	SOX	State Compliance achieved	06-AUG-2018	State	-
1200082	1200033	SOX	State Compliance achieved	11-SEP-2012	State	-
1200078	1100032	SOX	State Compliance achieved	09-FEB-2012	State	-
1200078	1100031	SOX	State Compliance achieved	09-FEB-2012	State	-
1200078	1000030	SOX	State Compliance achieved	09-FEB-2012	State	-
900069	0700029	SOX	State Compliance achieved	18-AUG-2009	State	-
900069	0700028	SOX	State Compliance achieved	18-AUG-2009	State	-
700062	0500016	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0600017	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0600020	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0600021	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0600022	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0700024	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0700025	SOX	State Compliance achieved	07-JUN-2007	State	-
700062	0700026	SOX	State Compliance achieved	07-JUN-2007	State	-
500032	0400015	SOX	State Compliance achieved	12-JAN-2005	State	-
300028	0300014	SOX	State Compliance achieved	15-JUL-2003	State	-
9800021	9700011	SOX	State Compliance achieved	19-FEB-1998	State	-
9800021	9700012	SOX	State Compliance achieved	19-FEB-1998	State	-
9600013	9504010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9505010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9506010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9507010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9508010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9509010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9510010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9511010	SIF	State Public Notification received	30-MAY-1996	State	-
9600013	9512010	SIF	State Public Notification received	30-MAY-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DEARBORN BROOK AND RESERVOIR /RAW	2	Yes	Intake	Surface water	Permanent	Active
GILMAN PARK WELL/APPROX 150' E BELL AVE	7	Yes	Well	Ground water	Permanent	Active
STADIUM WELL/APPROX 100' W OF GILMAN LN	6	Yes	Well	Ground water	Permanent	Active
GPW LARY LN	5	Yes	Well	Ground water	Permanent	Active
EXETER RIVER /RAW	3	Yes	Intake	Surface water	Permanent	Active
SKINNER SPRINGS	4	Yes	Spring	Ground water	Permanent	Active
TREATMENT PLANT /FINISHED	1	No	Treatment Plant	-	-	Active
LARY LANE WATER TREATMENT PLANT	507	No	Treatment Plant	-	-	Active
TREATMENT PLANT /LARY LN	505	No	Treatment Plant	-	-	Inactive

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT /FINISHED	1	Filtration, Rapid Sand	Organics removal
TREATMENT PLANT /FINISHED	1	Inhibitor, Orthophosphate	Corrosion control
TREATMENT PLANT /FINISHED	1	Chloramines	Disinfection
TREATMENT PLANT /FINISHED	1	4-Log Treatment of Viruses	Disinfection
TREATMENT PLANT /FINISHED	1	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT /FINISHED	1	pH Adjustment, Post	Corrosion control
TREATMENT PLANT /FINISHED	1	Hypochlorination, Post	Disinfection
TREATMENT PLANT /FINISHED	1	Permanganate	Iron removal
TREATMENT PLANT /FINISHED	1	Activated Carbon, Powdered	Taste / odor control
TREATMENT PLANT /FINISHED	1	Filtered	Particulate removal
TREATMENT PLANT /LARY LN	505	Hypochlorination, Post	Disinfection
TREATMENT PLANT /LARY LN	505	Sequestration	Manganese removal
LARY LANE WATER TREATMENT PLANT	507	Filtration, Greensand	Inorganics removal
LARY LANE WATER TREATMENT PLANT	507	Filtration, Greensand	Iron removal
LARY LANE WATER TREATMENT PLANT	507	Filtration, Greensand	Manganese removal
LARY LANE WATER TREATMENT PLANT	507	Hypochlorination, Post	Disinfection
LARY LANE WATER TREATMENT PLANT	507	Inhibitor, Polyphosphate	Corrosion control
LARY LANE WATER TREATMENT PLANT	507	Chloramines	Disinfection

1 - 18 of 18

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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