Tapcensus

Water quality in Hollis, New Hampshire

Hollis is in Hillsborough County. 280 active public water systems serve the county; 96 had an EPA violation in the past three years.

Most likely your provider

Pennichuck Water Works NH1621010 · Community water system · Surface water · Nashua
Serves 88,853 people Rules violated, past 3 years 0 Last sanitary survey Dec 10, 2025 Distance 4.4 mi

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

Other community water systems in Hillsborough County

73 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Hollis Village Marketplace
Hollis
36 3 0.8 mi
Runnells Landing
Hollis
74 0 2.4 mi
Hollis Pines Coop MHP West
Hollis
220 0 2.4 mi
Farley RD Estates
Nashua
85 0 3.6 mi
Silver Lake Estates
Hollis
100 0 3.9 mi
Heritage Way
Milford
48 0 5.7 mi
Fairhaven Mobile Home Park
Milford
63 3 6.1 mi
Ashley Commons
Milford
75 0 6.5 mi
Badger Hill
Milford
455 0 6.8 mi
Souhegan Woods
Amherst
298 0 7.0 mi
Connor Court
Amherst
51 0 7.1 mi
Ridgewood Estates
Amherst
115 1 7.3 mi
Milford Water Utilities Dept
Milford
9,500 1 8.0 mi
Hudson Water Dept
Hudson
16,700 1 8.1 mi
Francoeur Apt/hudson Motor Inn
Hudson
58 0 8.5 mi
Merrimack Village Dist
Merrimack
25,500 0 9.1 mi
Litchfield
Litchfield
6,920 0 10.0 mi
Long Pond Woods
Pelham
102 1 10.2 mi
Hudson Mobile Home Ests
Hudson
220 0 10.3 mi
Greenville Est Village Dist
Greenville
472 3 10.5 mi
Gowing Woods
Amherst
53 0 10.6 mi
Sky View Estates
Pelham
168 0 10.6 mi
Rolling Acres MHP
Mont Vernon
100 0 10.7 mi
Wilton Water Works
Wilton
1,790 2 11.0 mi
Frost Trailer Park
Greenville
73 0 11.1 mi
All 74 community water systems in Hillsborough County
Non-community systems in Hillsborough County (206: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Brookdale Wholesale
Hollis
63 2 0
Dunkin Donuts
Hollis
450 0 0
Hollis Brookline HS
Hollis
980 0 0
Beaver Brook ED Center
Hollis
220 0 0
Congregational Church
Hollis
150 0 0
Neil Stones Karate Academy
Hollis
55 0 0
Hollis Country Kitchen
Hollis
36 3 0
Farm Design
Hollis
45 0 0
Hollis Sch Dist
Hollis
2,000 0 0
Diamond Casting and Machine
Hollis
56 1 1
Beaver Brook/maple Hill Farm
Hollis
245 1 1
26 Clinton Drive Bldg
Hollis
200 0 0
Ultrasource
Hollis
68 0 0
18 Clinton DR Bldg
Hollis
75 0 0
Pizzeria Zacharia/the Hatch
Hollis
70 0 0
Hollis Montessori School
Hollis
145 0 0
Alpine Grove Events Centre
Hollis
300 1 0
Brookline Event Center
Brookline
240 1 0
Second Nature Academy
Nashua
212 2 0
Caryns Country Convenience Str
Brookline
100 0 0
Alamo Texas Bar B Cue
Brookline
80 1 0
Gazebo Square
Brookline
30 0 0
Richard Maghakian Memorial Sch
Brookline
395 0 0
Big Bear Lodge
Brookline
63 3 0
Creative Imaginations
Brookline
58 0 0
Capt Samuel Douglass Academy
Brookline
299 1 0
Decco
Brookline
50 0 0
Dunkin Donuts
Brookline
100 0 0
Stoney Ledge Plaza
Brookline
70 0 0
Amherst Professional Bldg
Amherst
47 0 0
Belletetes of Brookline
Brookline
36 0 0
Chrysanthis Restaurant
Brookline
75 2 0
Camp Tevya
Brookline
497 0 0
Field and Stream RV Park
Brookline
60 1 0
Milford Technology Center
Milford
250 0 0
Nellies Tree House
Milford
70 1 0
Parkers Maple Barn/sugar House
Mason
300 1 0
Christs Church of Amherst
Amherst
50 0 0
Connies Plaza
Hudson
250 1 0
Hudson Irving
Hudson
100 0 0
Mason Public Sch
Mason
110 0 0
Tabernacle Christian Sch
Litchfield
75 0 0
Camp Young Judaea/the Grove
Amherst
415 0 0
Labelle Winery
Amherst
250 0 0
Amherst Country Club
Amherst
180 0 0
Smokehaus Bbq
Amherst
135 0 0
Black Forest Cafe
Amherst
100 0 0
Ponemah Green
Amherst
100 0 0
Meeting Place
Amherst
76 0 0
Colonial Park
Amherst
70 1 0
All non-community systems
About this data

Water systems are matched to Hillsborough County, nearest to Hollis 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.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.