OAK VIEW, CA · Ventura County

CASITAS MUNICIPAL WATER DIST. Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 1, 1990. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Ventura County, CA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID): CA5610067
System type: Community Water System
Population served: 983
Service connections: 286
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

CASITAS MUNICIPAL WATER DIST. is one of 728 community water systems in California in the 501 to 3,300 people size category, formerly serving 983 people from surface water.

EPA's federal records list this system as inactive in 1990; the record below is historical.

As of August 1, 2026, its federal record holds 5 entries between 1979 and 1981, all of which EPA lists as closed. Nothing has been added since 1981.

None of the 5 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1981 – January 31, 1981
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1980 – November 30, 1980
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
December 30, 1979 – January 29, 1980
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 30, 1979 – December 29, 1979
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 28, 1979 – December 27, 1979
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 1981 – January 31, 1981	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1980 – November 30, 1980	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
December 30, 1979 – January 29, 1980	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
October 30, 1979 – December 29, 1979	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 28, 1979 – December 27, 1979	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

Phone not on record

OAK VIEW, CA 93022