Water Quality: Lompoc, CA
5 water systems • 51,515 people served
Multiple Health ViolationsWater Quality Summary
Lompoc is served by 5 public water systems with a combined service population of 51,515 people, and has 35 EPA Safe Drinking Water Act violations on record. Critically, 22 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Lompoc's violation count is 27% below the national average for California. Contaminants associated with violations include Arsenic, Barium, Gross Alpha.
Contaminants Found
Long-term exposure increases risk of skin, bladder, and lung cancers, as well as cardiovascular and neurological effects.
Common source: Natural rock deposits, agricultural pesticides, industrial waste
EPA limit: 0.010 mg/L (10 ppb)
Increases blood pressure and causes cardiovascular effects with long-term exposure.
Common source: Natural rock deposits, oil drilling operations, coal power plant waste
EPA limit: 2 mg/L
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)
Water Systems Serving Lompoc
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| LOMPOC-CITY WATER UTILITY DIV | CA4210006 | Surface Water | 40,473 | 0 |
| VANDENBERG VILLAGE COMM. SERV. DIST. | CA4210017 | Groundwater | 7,308 | 1 |
| MISSION HILLS CSD | CA4210019 | Groundwater | 3,600 | 1 |
| VISTA HILLS MUTUAL WATER COMPANY | CA4200848 | Groundwater | 75 | 11 |
| SANTA RITA WATER | CA4200822 | Groundwater | 59 | 22 |
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.