Tapcensus

Water quality in Cobb, California

Cobb 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

Cobb Area County Water District CA1710012 · Community water system · Ground water
Serves 3,515 people Rules violated, past 3 years 2 Unresolved 2 Last sanitary survey Mar 6, 2026 Distance 0.1 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
Loch Lomond Mutual Water CO
 666 1 1.9 mi
Mountain of Attention Water
 26 0 3.3 mi
Anderson Springs Csd
 373 0 4.4 mi
Cdf-Konocti Conservation Camp No. 27
 100 0 6.0 mi
Golden State Water Company South Shore
 30 2 8.0 mi
Callayomi County Water District
 1,607 1 8.1 mi
Westwind Mobile Home Park
 104 0 8.2 mi
Sunrise Shore Mutual Water Company
 83 0 8.2 mi
Baycliff Water
 70 0 8.3 mi
Mt. Konocti Mutual Water Company
 4,360 0 8.3 mi
Twin Creeks Mobile and RV Village
 50 1 8.5 mi
Lower Lake County Water District
 1,326 2 8.6 mi
Hidden Valley Lake Csd
 6,235 0 9.1 mi
Highlands Mutual Water Company
 7,772 0 9.4 mi
Konocti County Water District
 5,928 0 9.5 mi
Bella Lago Mobile Home Park
 152 2 9.6 mi
Konocti Shores
 30 0 9.7 mi
Walnut Cove Mobile Estates
 200 0 9.9 mi
Golden State Water Co.-Clearlake System
 4,623 0 10.1 mi
Clear Water Mutual Water Company
 154 0 10.1 mi
Harbor View Mutual Water Company
 550 1 10.9 mi
Kelseyville CO Waterworks District 3
 4,102 0 11.1 mi
Lazy S Mobile Ranch
 73 1 11.7 mi
Windflower Point Mutual Water Company
 25 1 11.9 mi
Buckingham Park Water District
 1,502 0 12.4 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
Mandala Water System
 212 0 0
Northern California Vipassana Center
 80 0 0
Harbin Hot Springs
 101 1 1
Larsen's Office Complex
 112 0 0
Jago Bay Mutual Water Company
 15 0 0
Reel in Resort
 200 0 0
Richmond Park Resort
 34 0 0
Hidden Valley Food Mart
 25 0 0
Konocti Harbor Resort
 505 1 0
Langtry Farms
 41 0 0
Indian Beach Resort
 75 0 0
The Mercantile
 28 0 0
Sky Park Properties
 25 0 0
Brassfield Estate Winery
 54 0 0
Westgate Petroleum
Lakeport 		210 0 0
Cache Creek Vineyards
 310 0 0
Lakeport Cinemas
 400 0 0
Jack in the Box Lakeport, CA
 25 0 0
Thomas Water System
Lakeport 		110 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
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 Cobb 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.