Water Quality: Bishop, CA
24 water systems • 9,798 people served
Multiple Health ViolationsWater Quality Summary
Bishop is served by 24 public water systems with a combined service population of 9,798 people, and has 125 EPA Safe Drinking Water Act violations on record. Critically, 27 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Bishop's violation count is 160% above the national average for California. Contaminants associated with violations include Gross Alpha, Haloacetic Acids, Nitrate-Nitrite, Stage 2 DBP.
Contaminants Found
Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.
Common source: Natural uranium and radium in geological formations
EPA limit: 15 pCi/L (excluding radon and uranium)
Linked to increased cancer risk and potential reproductive and developmental effects with long-term exposure.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Causes methemoglobinemia in infants and may pose cancer risks with long-term exposure.
Common source: Fertilizer runoff, septic systems, animal feedlots, natural deposits
EPA limit: 10 mg/L (as nitrogen)
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Bishop
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| BISHOP, CITY OF | CA1410001 | Groundwater | 3,819 | 11 |
| HIGHLAND MOBILE HOME PARK | CA1410007 | Groundwater | 1,400 | 3 |
| INDIAN CREEK CSD | CA1410005 | Groundwater | 1,030 | 0 |
| MEADOWCREEK MUTUAL WATER COMPANY | CA1400111 | Groundwater | 764 | 6 |
| SIERRA HIGHLAND CSD | CA1400007 | Groundwater | 600 | 3 |
| LOWER ROCK CREEK MUTUAL WATER CO. | CA2600538 | Groundwater | 310 | 3 |
| STARLITE COMMUNITY SERVICE DISTRICT | CA1400002 | Groundwater | 241 | 4 |
| PARK WEST MUTUAL WATER COMPANY | CA1400110 | Groundwater | 188 | 2 |
| KEOUGH'S HOT SPRINGS | CA1400034 | Groundwater | 175 | 9 |
| WILSON CIRCLE MUTUAL WATER COMPANY | CA1400135 | Groundwater | 158 | 9 |
| WHITE MOUNTAIN MUTUAL WATER COMPANY | CA2600621 | Groundwater | 142 | 2 |
| SIERRA GRANDE ESTATES MUTUAL WATER CO. | CA1400070 | Groundwater | 138 | 3 |
| CARTAGO MUTUAL WATER COMPANY | CA1400027 | Groundwater | 132 | 8 |
| CDF - OWENS VALLEY CONSERVATION CAMP | CA1410800 | Groundwater | 94 | 15 |
| RAWSON CREEK MUTUAL WATER COMPANY | CA1400026 | Groundwater | 90 | 5 |
| WHEELER CREST CSD | CA2600714 | Groundwater | 86 | 6 |
| VALLEY VISTA MUTUAL WATER COMPANY | CA1400025 | Groundwater | 70 | 6 |
| RANCH ROAD ESTATES MUTUAL WATER COMPANY | CA1400031 | Groundwater | 65 | 2 |
| COLD WATER CANYON MWC | CA2600733 | Groundwater | 65 | 0 |
| ASPENDELL MUTUAL WATER COMPANY | CA1400066 | Groundwater | 60 | 2 |
| BROOKSIDE ESTATES MUTUAL WATER COMPANY | CA1400056 | Groundwater | 59 | 7 |
| CHALFANT VALLEY WEST M.W.C. | CA2600699 | Groundwater | 45 | 2 |
| SIERRA NORTH COMMUNITY SERVICE DISTRICT | CA1400109 | Groundwater | 42 | 15 |
| VAN LOON WATER ASSOCIATION | CA1400518 | Groundwater | 25 | 2 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in California
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.