Tapcensus

Water quality for ZIP code 95470

ZIP 95470 covers Redwood Valley and Calpella in Mendocino County, California, one of 26 ZIP codes in the county. 148 active public water systems serve the county; 23 had an EPA violation in the past three years.

Most likely your provider

Redwood Valley County Water District CA2310008 · Community water system · Surface water
Serves 5,200 people Rules violated, past 3 years 0 Last sanitary survey Mar 19, 2025 Distance 2.8 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
Ridgewood Water System
 265 0 3.4 mi
Pine Mountain Mutual Water Co.
 310 2 4.8 mi
Calpella County Water District
 548 0 6.2 mi
Lake View Mutual Water Co.
 90 0 6.8 mi
Willits, City of
Willits		 6,175 0 8.4 mi
Millview County Water District
 5,500 0 8.6 mi
Little Lake Mobile Home Park
 38 0 10.4 mi
Ukiah, City of
Ukiah		 16,067 1 11.6 mi
City of 10,000 Buddhas
Ukiah		 200 1 13.2 mi
Rogina Water Company Inc.
 2,554 1 13.3 mi
Brooktrails Township Csd
 3,632 0 13.7 mi
Creekside Cabins & RV Resort
 124 2 14.4 mi
Willow County Water District
 3,797 1 14.9 mi
Yokayo Tribe of Indians
 75 2 16.1 mi
River Estates Mutual Water Company
 250 1 18.8 mi
Meadow Estates Mutual
 100 0 21.6 mi
Hopland Public Utility District
 1,076 0 24.5 mi
Woods, the (mendocino)
 153 0 27.3 mi
Elk County Water District
 207 1 28.2 mi
Laytonville County Water District
 1,152 0 28.6 mi
Albion Mutual Water Company
 26 1 28.6 mi
Big River Vista Mutual Water Company
 36 0 29.0 mi
Hills Ranch Mutual Water Company
 79 0 29.2 mi
Surfwood Mutual Water Corporation
 160 0 29.3 mi
Point of View Mutual Water CO
 36 0 29.6 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
U.s. Army Corps-Lake Mendo (pomo Site)
 300 0 0
U.s. Army Corps-Lake Mendo (kyen Cmpgrd)
 1,500 0 0
U.s. Army Corps-Lake Mendo (bushay Site)
 2,000 0 0
Wente Scout Reservation
 422 0 0
Potter Valley School District
 309 1 1
U.s. Army Corps-Lake Mendo (marina Site)
 200 0 0
Orr Springs Resort
 84 0 0
Cdf-Chamberlain Creek Conservation Camp
 110 1 1
Moss Cove Rest Stop (caltrans)
 400 0 0
Camp Mendocino
 321 0 0
Flight Ridge
 206 0 0
Roederer Estate Winery
 25 0 0
Navarro Vineyards
 112 0 0
Camp Navarro
 284 0 0
Lemons' Market
 150 0 0
I & E Lath Mill
 31 0 0
The Madrones
 91 0 0
Goldeneye Winery
 63 0 0
Csp-Hendy Woods State Park
 236 0 0
The Land
 50 0 0
Anderson Valley Elementary School
 350 0 0
Blackbird Farm
 25 0 0
Irvine Lodge Rest Stop (caltrans)
 300 0 0
Mendocino Art Center
 48 0 0
Anderson Valley High School
 300 0 0
Anderson Valley Health Center
 25 0 0
Offstreet Studios
 25 0 0
Redwood Drive-In
 25 0 0
Boonville Hotel
 25 0 0
Mendocino County Fairgrounds
 500 0 0
Cdf-Parlin Fork Conservation Camp
 55 0 0
Anderson Valley Brewing Company
 47 1 0
Pennyroyal Farm
 37 0 0
Fetzer Vineyards
 126 0 0
Ray's Station Winery
 134 0 0
Csp-Mendocino Woodlands
 400 0 0
Mendocino School District-Albion School
 25 0 0
Wildwood Campground
 48 0 0
Albion Field Station
 154 0 0
Seafoam Lodge
 56 0 0
Little River Inn
 95 0 0
Mendocino Grove
 27 0 0
Mendocino Coast Lodge
 48 0 0
Csp-Van Damme State Park
 2,004 0 0
Leisure Time RV Park
 92 0 0
Sea Rock Inn
 54 0 0
Inn at Schoolhouse Creek
 77 0 0
Pacific Reefs Water District
 25 0 0
Albion River Campground
 425 0 0
Stanford Inn by the Sea
 153 0 0
All non-community systems
About this data

Water systems are matched to Mendocino 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.

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 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. Retrieved from ECHO on Oct 11, 2026.