City and town drinking water records
Water systems serving Oceanside, CA
7 community water systems have a mapped service area in Oceanside, CA. City of Oceanside covers 100% of the area inside Oceanside's Census boundary and reports serving 171,483 people in all.
2 of them had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.
4 rely mainly on groundwater and 3 on surface water, counting water bought from other systems.
Their lead service line inventories list 0 lead lines, 0 galvanized lines that must be replaced and 204 lines of unknown material.
- Community water systems
- 7
- Systems with a health-based violation, last 10 years
- 2
- Systems with one unresolved
- 2
- Lead service lines in inventories
- 0
Water systems serving Oceanside
7 systemsPeople served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.
| System | Area | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| City of Oceanside | Covers 100% of Oceanside | 171,483 | Purchased surface water | 0 | 0 | 0 |
| San Diego County Water Authority | Covers 96% of Oceanside | Not reported | Surface water | 1 | 0 | 0 |
| Arviso - Mobile Home Park | Covers 14% of Oceanside | 70 | Groundwater | 1 | 4 | 0 |
| La Jolla Western | Mapped area inside Oceanside | 296 | Groundwater | 0 | 0 | 0 |
| La Jolla Eastern | Mapped area inside Oceanside | 1,076 | Groundwater | 0 | 0 | 0 |
| Pechanga | Mapped area inside Oceanside | 29,100 | Purchased surface water | 0 | 2 | 0 |
| Rincon Northern | Mapped area inside Oceanside | 7,003 | Groundwater | 0 | 0 | 0 |
Other cities and towns in San Diego County
55 places- Alpine
- Bonita
- Bonsall
- Borrego Springs
- Bostonia
- Campo
- Camp Pendleton Mainside
- Camp Pendleton South
- Carlsbad
- Casa de Oro-Mount Helix
- Chula Vista
- Coronado
- Crest
- Del Dios
- Del Mar
- Descanso
- El Cajon
- Elfin Forest
- Encinitas
- Escondido
- Eucalyptus Hills
- Fairbanks Ranch
- Fallbrook
- Granite Hills
- Harbison Canyon
- Harmony Grove
- Hidden Meadows
- Imperial Beach
- Jacumba
- Jamul
- Julian
- Lake San Marcos
- Lakeside
- La Mesa
- La Presa
- Lemon Grove
- Mount Laguna
- National City
- Pala
- Pine Valley
- Potrero
- Poway
- Rainbow
- Ramona
- Rancho San Diego
- Rancho Santa Fe
- San Diego
- San Diego Country Estates
- San Marcos
- Santee
- Solana Beach
- Spring Valley
- Valley Center
- Vista
- Winter Gardens
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations