Tapcensus

Water quality in Hopland, California

Hopland is in Mendocino County. 148 active public water systems serve the county; 23 had an EPA violation in the past three years.

Most likely your provider

Hopland Public Utility District CA2310010 · Community water system · Ground water
Serves 1,076 people Rules violated, past 3 years 0 Last sanitary survey Apr 17, 2023 Distance 0.2 mi

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

View system details EPA facility report

Other community water systems in Mendocino County

41 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
River Estates Mutual Water Company
 250 1 6.0 mi
Yokayo Tribe of Indians
 75 2 8.7 mi
Willow County Water District
 3,797 1 10.2 mi
Rogina Water Company Inc.
 2,554 1 11.5 mi
City of 10,000 Buddhas
Ukiah		 200 1 11.6 mi
Ukiah, City of
Ukiah		 16,067 1 13.3 mi
Meadow Estates Mutual
 100 0 14.4 mi
Millview County Water District
 5,500 0 16.2 mi
Calpella County Water District
 548 0 18.6 mi
Lake View Mutual Water Co.
 90 0 19.0 mi
Redwood Valley County Water District
 5,200 0 22.2 mi
North Gualala Water Company
 3,508 0 26.0 mi
Ridgewood Water System
 265 0 26.4 mi
Pine Mountain Mutual Water Co.
 310 2 29.5 mi
Irish Beach Water District
 254 1 30.2 mi
Point Arena Water Works
 459 1 31.2 mi
Willits, City of
Willits		 6,175 0 32.5 mi
Elk County Water District
 207 1 34.0 mi
Little Lake Mobile Home Park
 38 0 34.8 mi
Brooktrails Township Csd
 3,632 0 37.6 mi
Creekside Cabins & RV Resort
 124 2 39.0 mi
Albion Mutual Water Company
 26 1 39.1 mi
Woods, the (mendocino)
 153 0 40.0 mi
Big River Vista Mutual Water Company
 36 0 42.9 mi
Hills Ranch Mutual Water Company
 79 0 43.4 mi
All 42 community water systems in Mendocino County
Non-community systems in Mendocino County (106: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Fetzer Vineyards
 126 0 0
Ray's Station Winery
 134 0 0
Flight Ridge
 206 0 0
Anderson Valley Brewing Company
 47 1 0
Pennyroyal Farm
 37 0 0
Mendocino County Fairgrounds
 500 0 0
Offstreet Studios
 25 0 0
Boonville Hotel
 25 0 0
Redwood Drive-In
 25 0 0
Anderson Valley High School
 300 0 0
Anderson Valley Health Center
 25 0 0
Anderson Valley Elementary School
 350 0 0
U.s. Army Corps-Lake Mendo (marina Site)
 200 0 0
Goldeneye Winery
 63 0 0
The Madrones
 91 0 0
U.s. Army Corps-Lake Mendo (bushay Site)
 2,000 0 0
I & E Lath Mill
 31 0 0
U.s. Army Corps-Lake Mendo (pomo Site)
 300 0 0
Lemons' Market
 150 0 0
The Land
 50 0 0
U.s. Army Corps-Lake Mendo (kyen Cmpgrd)
 1,500 0 0
Blackbird Farm
 25 0 0
Csp-Hendy Woods State Park
 236 0 0
Navarro Vineyards
 112 0 0
Orr Springs Resort
 84 0 0
Roederer Estate Winery
 25 0 0
Potter Valley School District
 309 1 1
Camp Navarro
 284 0 0
Lighthouse Pointe
 61 0 0
Manchester Beach KOA
 273 0 0
Csp-Manchester State Park
 420 0 0
Wente Scout Reservation
 422 0 0
Point Arena Lighthouse
 25 0 0
Cdf-Chamberlain Creek Conservation Camp
 110 1 1
Mendocino School District-Albion School
 25 0 0
Albion Field Station
 154 0 0
Pacific Reefs Water District
 25 0 0
Seafoam Lodge
 56 0 0
Mendocino Coast Lodge
 48 0 0
Camp Mendocino
 321 0 0
Cdf-Parlin Fork Conservation Camp
 55 0 0
Csp-Mendocino Woodlands
 400 0 0
Sea Rock Inn
 54 0 0
Inn at Schoolhouse Creek
 77 0 0
Little River Inn
 95 0 0
Csp-Van Damme State Park
 2,004 0 0
Albion River Campground
 425 0 0
Mendocino Inn and Farm B
 27 0 0
Mendocino Inn and Farm a
 27 0 0
Mendocino Grove
 27 0 0
All non-community systems
About this data

Water systems are matched to Mendocino County, nearest to Hopland 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.

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 California 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.