Tapcensus

Water quality for ZIP code 03242

ZIP 03242 covers Henniker in Merrimack County, New Hampshire, one of 28 ZIP codes in the county. 246 active public water systems serve the county; 80 had an EPA violation in the past three years.

Most likely your provider

Cogswell Springs Water Works NH1121010 · Community water system · Ground water · Henniker
Serves 3,000 people Rules violated, past 3 years 0 Last sanitary survey Sep 5, 2024 Distance 0.8 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Merrimack County

62 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Liberty Ridge MHP
Henniker
91 0 2.4 mi
Elm Brook Village
Hopkinton
90 0 5.6 mi
Contoocook Village Pct
Hopkinton
1,600 3 6.3 mi
Pleasant Pond Coop and Cmpgrnd
Warner
218 0 6.5 mi
The Meadows
Hopkinton
200 0 7.4 mi
Warner Village Water Dist
Warner
660 0 7.8 mi
Hopkinton Village Pct
Hopkinton
215 1 8.1 mi
Fisherfield Townhouses
Bradford
40 0 9.6 mi
Deer Meadows
Hopkinton
150 2 10.2 mi
Evergreen Drive Water
Bow
80 0 10.8 mi
Pillsbury Lake/franklin Pierce
Webster
75 2 10.9 mi
Pillsbury Lake/peninsula
Webster
90 0 11.1 mi
Bella Brook Water
Bow
50 0 11.4 mi
Abenaki Water/white Rock Water
Bow
238 0 13.9 mi
Penacook Boscawen Water Pct
Boscawen
3,800 0 14.4 mi
Newbury Elderly Housing
Newbury
51 2 14.6 mi
Cottages at Windchimes
Bow
75 0 14.7 mi
White Rock Senior Living
Bow
120 0 14.7 mi
Concord Water Dept
Concord
44,215 0 15.1 mi
Chalk Pond Water
Newbury
208 0 15.4 mi
Stone Sled Farm
Bow
113 0 15.4 mi
Seasons at Lake Sunapee
New London
153 0 17.0 mi
Meeting House Water
Pembroke
35 1 17.5 mi
Bow Municipal Water System
Bow
150 0 17.5 mi
Canterbury Spruces Housing
Canterbury
25 0 17.9 mi
All 63 community water systems in Merrimack County
Non-community systems in Merrimack County (183: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Dunkin Donuts
Henniker
250 0 0
Dollar General Store 17389
Henniker
100 0 0
Henniker Motel
Henniker
25 0 0
Pats Peak Ski Area
Henniker
47 0 0
Rock N Birch Camping Area
Henniker
125 2 0
Hhp
Henniker
70 0 0
Spacious Skies French Pond
Henniker
400 1 0
Keyser Pond Campground
Henniker
300 2 1
ST Methodios Faith/hrtge Ctr
Hopkinton
300 2 0
Sandy Beach RV Resort I
Hopkinton
463 0 0
Duston Country Club
Hopkinton
40 2 0
Massasecum Casino and Park
Bradford
55 0 0
Elm Brook Park
Hopkinton
500 0 0
Storm Fitness
Hopkinton
32 0 0
Yankee Book Peddler
Hopkinton
240 0 0
American Legion Post 81
Hopkinton
199 0 0
McLane Northeast
Hopkinton
300 1 0
Kearsarge Reg Elem Sch/bradfrd
Bradford
231 0 0
MT Kearsarge Indian Museum
Warner
75 1 0
Bradford Market
Bradford
50 3 0
Pizza Chef
Bradford
74 1 1
Childrens Ctr for Creatve Lrng
Bradford
40 2 0
Sweet Beet Mkt/village Cafe
Bradford
75 0 0
Appleseed Restaurant
Bradford
75 0 0
Cozy Pond Camping Resort/west
Webster
375 1 0
Cozy Pond Camping Resort/east
Webster
90 1 0
Pages Country Store and Deli
Dunbarton
25 0 0
ST Mary Magdalen Center
Warner
30 0 0
Dunbarton Family Dental Care
Dunbarton
25 0 0
Beech Hill School
Hopkinton
44 0 0
Rosewood Country Inn
Bradford
33 0 0
Webster Elementary Sch
Webster
100 0 0
School Street Cafe
Dunbarton
30 0 0
Dunbarton Elementary Sch
Dunbarton
289 0 0
Riverhill Market
Concord
25 0 0
Follansbee Inn
Sutton
35 0 0
Sutton Rest Area
Sutton
999 0 0
Kearsarge Regional High Sch
Sutton
650 0 0
Sutton Central Sch
Sutton
118 0 0
Avaloch Farm Music Institute
Boscawen
48 1 0
New Hampshire Audubon
Concord
50 0 0
Kearsarge Regional Middle Sch
Sutton
550 1 0
Family Tree Healthcare
Hopkinton
45 0 0
Country Club of New Hampshire
Sutton
120 0 0
MT Sunapee Ski Area/main Lodge
Newbury
950 0 0
Salt Hill Pub
Newbury
200 0 0
Fells Mainhouse
Newbury
50 1 0
Davis Cabins on Lake Sunapee
Newbury
35 1 0
Baker Hill Golf Club
Newbury
25 0 0
Bow High School
Bow
645 0 0
All non-community systems
About this data

Water systems are matched to Merrimack County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Hampshire records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.