PENACOOK BOSCAWEN WATER PCT

New Hampshire — Community Water System — PWSID: NH0251010

System Information

PWSID	NH0251010
System Name	PENACOOK BOSCAWEN WATER PCT
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	01
Serves School	No
Wholesaler	No
First Reported	Mar 8, 1979
Last Reported	Dec 15, 2025

Location & Contact

State	New Hampshire
City	NASHUA
ZIP Code	03061
Address	PO BOX 428
Organization	PENNICHUCK WATER WORKS INC
Phone	—

Population & Service

Population Served	3,800
Service Connections	1,180

Drinking Water Violations (43)

This water system has 43 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Dec 5, 2017	—	Public Notice	Other	No	No	—	—	—	Resolved	Feb 2, 2018	Public Notice Rule and Revised PN Rule
Dec 5, 2017	—	Public Notice	Other	No	No	—	—	—	Resolved	Feb 2, 2018	Public Notice Rule and Revised PN Rule
Jul 1, 2017	Oct 1, 2017	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Oct 1, 2017	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017	Oct 1, 2017	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Oct 1, 2017	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017	Oct 1, 2017	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Oct 1, 2017	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017	Oct 1, 2017	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Oct 1, 2017	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2009	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 4, 2009	Consumer Confidence Rule
Oct 1, 2009	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 4, 2009	Consumer Confidence Rule
Jan 1, 2009	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 10, 2009	Lead and Copper Rule
Jan 1, 2009	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 10, 2009	Lead and Copper Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 1995	Oct 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1995	Total Coliform Rule
Oct 1, 1995	Oct 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1995	Total Coliform Rule
Oct 1, 1995	Oct 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1995	Total Coliform Rule
Oct 1, 1995	Oct 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1995	Total Coliform Rule
Jul 1, 1995	Jul 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1995	Total Coliform Rule
Jul 1, 1995	Jul 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1995	Total Coliform Rule
Jul 1, 1995	Jul 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1995	Total Coliform Rule
Jul 1, 1995	Jul 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1995	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jul 1, 1994	Jul 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Jun 1, 1994	Jun 30, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1994	Total Coliform Rule
Sep 1, 1993	Sep 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1993	Total Coliform Rule
Sep 1, 1993	Sep 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1993	Total Coliform Rule
Sep 1, 1993	Sep 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 1993	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Jan 1, 1992	Feb 22, 1996	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Feb 22, 1996	Surface Water Treatment Rule
Jun 1, 1991	Jun 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1991	Total Coliform Rule
Jun 1, 1991	Jun 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1991	Total Coliform Rule
Jun 1, 1991	Jun 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1991	Total Coliform Rule
May 1, 1991	May 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1991	Total Coliform Rule
May 1, 1991	May 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1991	Total Coliform Rule
May 1, 1991	May 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1991	Total Coliform Rule
May 1, 1991	May 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1991	Total Coliform Rule
May 1, 1991	May 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	May 31, 1991	Total Coliform Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in New Hampshire