OJAI, CA · Ventura County

RANCHITOS MUTUAL WATER CO Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of November 1, 1993. 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): CA5601114
System type: Community Water System
Population served: 267
Service connections: 120
Ownership: not on record
Water source: groundwater (wells)

RANCHITOS MUTUAL WATER CO is one of 3,951 community water systems in California in the 500 or fewer people size category, formerly serving 267 people from groundwater.

EPA's federal records list this system as inactive in 1993; the record below is historical.

As of August 1, 2026, its federal record holds 23 entries between 1979 and 1984, all of which EPA lists as closed. Nothing has been added since 1984.

Of the 23, 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Miscellaneous Other Rules, and the Radionuclides and Revised Rad Rule.

Violation history

Notification, Public
—
No contaminant on record
August 1, 1984 – August 31, 1984
Archived
Notification, Public
—
No contaminant on record
July 1, 1984 – July 31, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
June 1, 1984 – June 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1984 – May 31, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
April 1, 1984 – April 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 1, 1984 – March 31, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1984 – February 29, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1984 – January 31, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
December 1, 1983 – December 31, 1983
Archived
Notification, Public
—
No contaminant on record
December 1, 1983 – December 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1983 – October 31, 1983
Archived
Notification, Public
—
No contaminant on record
May 1, 1983 – May 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1983 – May 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
April 1, 1983 – April 30, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 1, 1983 – March 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1983 – February 28, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 1983 – January 31, 1983
Archived
Notification, Public
—
No contaminant on record
January 1, 1983 – January 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
November 1, 1982 – November 30, 1982
Archived
Notification, Public
—
No contaminant on record
November 1, 1982 – November 30, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Notification, Public
—
No contaminant on record
April 30, 1980 – May 29, 1980
Archived
Monitoring, Check/Repeat/Confirmation
—
Nitrate
June 1, 1979 – May 31, 1983
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
August 1, 1984 – August 31, 1984	Notification, Public	—	—	Archived
July 1, 1984 – July 31, 1984	Notification, Public	—	—	Archived
June 1, 1984 – June 30, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
May 1, 1984 – May 31, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
April 1, 1984 – April 30, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
March 1, 1984 – March 31, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
February 1, 1984 – February 29, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
January 1, 1984 – January 31, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
December 1, 1983 – December 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
December 1, 1983 – December 31, 1983	Notification, Public	—	—	Archived
October 1, 1983 – October 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
May 1, 1983 – May 31, 1983	Notification, Public	—	—	Archived
May 1, 1983 – May 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
April 1, 1983 – April 30, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
March 1, 1983 – March 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
February 1, 1983 – February 28, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
January 1, 1983 – January 31, 1983	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
January 1, 1983 – January 31, 1983	Notification, Public	—	—	Archived
November 1, 1982 – November 30, 1982	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
November 1, 1982 – November 30, 1982	Notification, Public	—	—	Archived
October 1, 1981 – September 30, 1982	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
April 30, 1980 – May 29, 1980	Notification, Public	—	—	Archived
June 1, 1979 – May 31, 1983	Monitoring, Check/Repeat/Confirmation	Nitrate	—	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

OJAI, CA 93023