Tapcensus

Water quality in Clearlake, California

Clearlake is in Lake County. 81 active public water systems serve the county; 17 had an EPA violation in the past three years.

Most likely your provider

Highlands Mutual Water Company CA1710003 · Community water system · Surface water
Serves 7,772 people Rules violated, past 3 years 0 Distance 0.7 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 Lake County

42 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Sunrise Shore Mutual Water Company
 83 0 1.7 mi
Konocti County Water District
 5,928 0 1.8 mi
Baycliff Water
 70 0 1.9 mi
Golden State Water Co.-Clearlake System
 4,623 0 2.1 mi
Golden State Water Company South Shore
 30 2 2.3 mi
Twin Creeks Mobile and RV Village
 50 1 2.7 mi
Lower Lake County Water District
 1,326 2 3.5 mi
Westwind Mobile Home Park
 104 0 3.6 mi
Mt. Konocti Mutual Water Company
 4,360 0 4.8 mi
Clearlake Oaks County Water District
 2,359 1 4.9 mi
Walnut Cove Mobile Estates
 200 0 5.9 mi
Bella Lago Mobile Home Park
 152 2 5.9 mi
Konocti Shores
 30 0 6.0 mi
Windflower Point Mutual Water Company
 25 1 6.1 mi
Clear Water Mutual Water Company
 154 0 6.2 mi
Cdf-Konocti Conservation Camp No. 27
 100 0 6.4 mi
Mountain of Attention Water
 26 0 6.6 mi
Harbor View Mutual Water Company
 550 1 6.7 mi
Glenhaven Mutual Water Company
 300 0 7.2 mi
Buckingham Park Water District
 1,502 0 7.5 mi
Loch Lomond Mutual Water CO
 666 1 8.1 mi
Lake County Csa 2 Spring Valley
 1,531 0 8.1 mi
Lake County Csa 13 Kono Tayee
 449 0 9.2 mi
Lake County Csa 20 Soda Bay
 2,003 0 9.3 mi
Cobb Area County Water District
 3,515 2 10.0 mi
All 43 community water systems in Lake County
Non-community systems in Lake County (38: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Jago Bay Mutual Water Company
 15 0 0
Reel in Resort
 200 0 0
Cache Creek Vineyards
 310 0 0
Richmond Park Resort
 34 0 0
Konocti Harbor Resort
 505 1 0
Larsen's Office Complex
 112 0 0
Indian Beach Resort
 75 0 0
Brassfield Estate Winery
 54 0 0
Northern California Vipassana Center
 80 0 0
Mandala Water System
 212 0 0
Harbin Hot Springs
 101 1 1
Hidden Valley Food Mart
 25 0 0
The Mercantile
 28 0 0
Westgate Petroleum
Lakeport 		210 0 0
Sky Park Properties
 25 0 0
Lakeport Cinemas
 400 0 0
Thomas Water System
Lakeport 		110 0 0
Jack in the Box Lakeport, CA
 25 0 0
Jitter Bean Coffee
Lakeport 		160 0 0
Wall Water
 40 0 0
Rotten Robbie
 992 0 0
Mendo Mill and Lumber Company
Lakeport 		45 0 0
Lakeside County Park
 1,000 0 0
Langtry Farms
 41 0 0
Wildwood
 50 0 0
Three Brothers Travel Plaza
 25 0 0
Saratoga Springs Retreat Center
 208 0 0
Lodge at Blue Lakes
 100 0 0
Pine Acres Blue Lake Resort
 25 0 0
The Narrows Family Resort
 74 0 0
LE Trianon Resort
 539 0 0
Usfs-Middle Creek CG
 40 0 0
Lake Pillsbury Resort & Marina INC
 150 0 0
Usfs-Sunset Point Campground
 110 0 0
Usfs Oak Flat Water System
 25 0 0
Lake Pillsbury Ranch Water Company
 52 0 0
Huttopia Six Sigma Campground
 330 0 0
Reynolds Water System
 100 0 0
About this data

Water systems are matched to Lake County, nearest to Clearlake 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. Retrieved from ECHO on Oct 11, 2026.