Tapcensus

California

Inyo County drinking water quality

115 active public water systems serve 100,496 people in Inyo County. 68 are compliant, 47 had at least one EPA violation in the past three years, 0 are designated serious violators, and 8 carry a health flag.

Active systems 115 44 community systems
People served 100K by public water systems
Systems with violations 47 41% of active systems, past 3 years
Serious violators 0 8 systems carry a health flag

Needs attention

Inyo County Pwd Lone Pine CA1410009 · Community water system · Serves 1,835 4 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR).
Highland Mobile Home Park CA1410007 · Community water system · Serves 1,260 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR).
Inyo County Pwd Independence CA1410008 · Community water system · Serves 1,108 3 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR) and Lead and Copper Rule Revisions (LCRR).
Charles Brown Water Company CA1400004 · Community water system · Serves 242 3 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR).
Cdf Owens Valley Conservation Camp CA1410800 · Community water system · Serves 110 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR).
Eastern Sierra Regional Airport CA1400055 · Non-Transient non-community system · Serves 50 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR).
Inyo County Pwd Laws Town CA1400525 · Non-Transient non-community system · Serves 50 3 rules violated in the past three years. Unresolved: Consumer Confidence Rule (CCR), Lead and Copper Rule (LCR), and Lead and Copper Rule Revisions (LCRR).
Meadow Lake Apartments CA1400511 · Community water system · Serves 22 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions (LCRR) and Revised Total Coliform Rule (RTCR).

Community water systems

44 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Bishop, City of
Bishop 		3,819 1 0
Inyo County Pwd Lone Pine
 1,835 4 1
Highland Mobile Home Park
 1,260 1 1
Inyo County Pwd Independence
 1,108 3 2
Indian Creek Csd
 1,030 0 0
Rolling Green Utilities, Inc.
 940 1 0
Big Pine Csd
 798 1 1
Meadowcreek Mutual Water Company
 764 1 1
Sierra Highland Csd
 600 1 0
Glenwood Mobile Estates
 468 1 1
Owens Valley Water Resources, Inc.
 311 0 0
Charles Brown Water Company
 242 3 1
Starlite Community Service District
 241 0 0
Pine Creek Village
 240 0 0
Park West Mutual Water Company
 188 0 0
Wilson Circle Mutual Water Company
 158 1 0
Nps Death Valley, Furnace Creek
 150 1 0
Sierra Grande Estates Mutual Water Co.
 138 0 0
Cartago Mutual Water Company
 132 1 0
Brookside Mobile Home Park
 126 0 0
Cdf Owens Valley Conservation Camp
 110 1 1
Rawson Creek Mutual Water Company
 90 0 0
Nps Death Valley, Cow Creek/nevares
 88 2 0
Keough's Hot Springs
 75 0 0
Primrose Lane Apartments
 73 0 0
North Lone Pine Mutual Water Company
 70 1 1
Valley Vista Mutual Water Company
 70 0 0
Keeler Community Service District
 66 2 1
Aspendell Mutual Water Company
 60 0 0
Brookside Estates Mutual Water Company
 59 2 1
Ranch Road Estates Mutual Water Company
 57 0 0
Aberdeen Water System
 43 0 0
Sierra North Community Service District
 42 1 1
Sce Bishop Creek Plant 4
 35 0 0
Ladwp Mountain View Trailer Court
 31 0 0
Ladwp Control Gorge Power Plant
 30 0 0
Sunland Village Mobile Home Park
 29 0 0
Darwin Community Service District
 25 2 1
Nps Death Valley, Stovepipe Wells
 25 1 0
Van Loon Water Association
 25 0 0
Meadow Lake Apartments
 22 2 1
Ladwp Big Pine
 0 0 0
Ladwp Independence
 0 0 0
Ladwp Lone Pine
 0 0 0
Non-community systems (71: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Boulder Creek Trailer Park
 30,000 0 0
Bishop Creek Chevron
Bishop 		16,793 0 0
Tuttle Creek Campground
 11,908 0 0
Bishop Creek System
 4,839 0 0
Petite Pantry
 3,012 0 0
Horton Creek Campground
 2,405 0 0
Lone Pine Campground
 2,205 0 0
Lee's Frontier
 2,000 0 0
Pearsonville Water System
 1,515 0 0
Horseshoe Meadow Campground
 1,052 0 0
Cal Trans Coso Junction
 1,000 0 0
Big Trees Campground
 719 0 0
Coso Junction Ranch Store
 715 0 0
Diaz Lake Campground
 500 1 0
Millpond Recreation Area
 500 1 0
Whitney Portal
 500 0 0
Bitterbrush Campground
 333 0 0
Bishop Creek Lodge
 305 0 0
Cal Trans Division Creek
 300 1 1
Nps Manzanar
 298 0 0
Eastern Sierra College Center Bishop
 290 0 0
Astorgas Water System
 250 0 0
Tecopa Water Vending Machine
 241 2 0
Panamint Springs Resort
 216 1 0
Death Valley Junction
 201 1 0
High Sierra Water Company
 200 0 0
Bishop Country Club
 167 0 0
Quality Inn System
 150 0 0
Schober Lane Campground
 150 0 0
Four Jeffrey Campground
 142 1 0
Crystal Geyser Bottling Plant
 110 1 1
Eastern Sierra Tri County Fair
 104 1 0
Pleasant Valley Campground
 100 1 0
Round Valley School
 80 0 0
Olancha Mobil Mart
Bishop 		75 2 0
Parcher's Resort
 68 0 0
Grays Meadow Campground
 67 1 0
Ladwp Keeler Yard
 66 0 0
Delight's Hot Springs Resort
 58 1 0
Rock Creek Lakes Resort
 56 1 0
Cardinal Village Resort
 55 0 0
Mountain View Estates Mwc
 54 0 0
Upper Sage Flat Campground
 53 1 0
Lone Pine Oasis
 52 1 0
Glacier Lodge
 51 1 0
Eastern Sierra Regional Airport
 50 1 1
Inyo County Pwd Laws Town
 50 3 3
Rock Creek Lake Boat Dock & Group Camp
 50 0 0
Taboose Creek Campground
 50 1 0
Tecopa Hot Springs Park
 50 1 0
Tecopa Palms Therapeutic Hot Springs Res
 50 0 0
Sce Bishop Creek Plant 5
Bishop 		43 0 0
Deep Springs College
 40 1 1
Olancha RV and MHP
 39 0 0
Palisade Glacier High School
 37 0 0
Sabrina Campground
 37 1 0
Sage Flat Campground
 37 1 0
Lake Sabrina Boat Landing
 35 0 0
Nps Death Valley, Mesquite Springs
 35 0 0
Ucla White Mountain Research Center
 35 0 0
Ups Bishop (cabis)
Bishop 		35 0 0
Alpine Mutual Water Company
 32 0 0
Bird Industrial Complex
 30 0 0
Lake Olancha RV Park
 30 0 0
Mount Whitney Golf Club
 30 1 0
Rock Creek Lake Campground
 28 0 0
Nps Death Valley, Grapevine RS
 27 0 0
Desiderata Estates Mutual Water Company
 15 0 0
Bernasconi Education Center
 3 0 0
Ladwp Laws Town
 0 0 0
Ladwp Manzanar
Bishop 		0 0 0
Inactive systems (65, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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.