City and town drinking water records

Water systems serving El Rio, CA

6 community water systems have a mapped service area in El Rio, CA. United Wtr Cons Dist covers 100% of the area inside El Rio's Census boundary.

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 2 on surface water, counting water bought from other systems.

Their lead service line inventories list no lead lines, no galvanized lines that must be replaced and no lines of unknown material.

Community water systems

6

Systems with a health-based violation, last 10 years

2

Systems with one unresolved

2

Lead service lines in inventories

0

Water systems serving El Rio

6 systems

People 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
United Wtr Cons Dist	Covers 100% of El Rio	Not reported	Groundwater under direct influence	0	0	0
Cal American WC - Rio Plaza	Covers 10% of El Rio	1,709	Groundwater	0	0	0
Vineyard Ave Estates MWC	Covers 10% of El Rio	1,200	Purchased surface water	1	2	0
Vineyard Avenue Acres MWC	Covers 8% of El Rio	1,820	Groundwater	2	2	0
Cloverdale Mutual Water Co.	Covers 6% of El Rio	455	Groundwater	0	0	0
Strickland Mutual Water Company	Mapped area inside El Rio	429	Groundwater	0	0	0

Other cities and towns in Ventura County

23 places

• Bell Canyon
• Camarillo
• Casa Conejo
• Channel Islands Beach
• Fillmore
• Lake Sherwood
• Meiners Oaks
• Mira Monte
• Moorpark
• Oak Park
• Oak View
• Ojai
• Oxnard
• Piru
• Port Hueneme
• San Buenaventura (Ventura)
• Santa Paula
• Santa Rosa Valley
• Santa Susana
• Saticoy
• Simi Valley
• Somis
• Thousand Oaks

Back to Ventura County, CA

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