OXNARD, CA · Ventura County

PLAZA MOBILE HOME PARK Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 1, 2003. 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 July 4, 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): CA5602105
System type: Community Water System
Population served: 74
Service connections: 35
Ownership: not on record
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
March 20, 1986 – March 19, 1987
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
February 21, 1986 – February 20, 1987
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
August 12, 1985 – August 11, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
June 11, 1985 – June 10, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
May 8, 1985 – May 7, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
April 10, 1985 – April 9, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
September 1, 1984 – September 30, 1984
Archived
Notification, Public
—
No contaminant on record
September 1, 1984 – September 30, 1984
Archived
Notification, Public
—
No contaminant on record
August 1, 1984 – August 31, 1984
Archived
Notification, Public
—
No contaminant on record
May 1, 1983 – May 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
May 1, 1983 – May 31, 1983
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
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
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
June 1, 1981 – May 31, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
Archived
Notification, Public
—
No contaminant on record
April 30, 1980 – May 29, 1980
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Selenium
February 28, 1980 – May 27, 1980
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
March 20, 1986 – March 19, 1987	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
February 21, 1986 – February 20, 1987	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
August 12, 1985 – August 11, 1986	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
June 11, 1985 – June 10, 1986	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
May 8, 1985 – May 7, 1986	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
April 10, 1985 – April 9, 1986	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
September 1, 1984 – September 30, 1984	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
September 1, 1984 – September 30, 1984	Notification, Public	—	—	Archived
August 1, 1984 – August 31, 1984	Notification, Public	—	—	Archived
May 1, 1983 – May 31, 1983	Notification, Public	—	—	Archived
May 1, 1983 – May 31, 1983	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
November 1, 1982 – November 30, 1982	Maximum Contaminant Level Violation, Single Sample	Selenium	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
June 1, 1981 – May 31, 1982	Maximum Contaminant Level Violation, Single Sample	Selenium	Health-based	Archived
October 30, 1980 – October 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
April 30, 1980 – May 29, 1980	Notification, Public	—	—	Archived
February 28, 1980 – May 27, 1980	Maximum Contaminant Level Violation, Single Sample	Selenium	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

OXNARD, CA 93030