Public Water Partners

SARATOGA, CA · Santa Clara County

OAK DELL PARK Water System

Consumer Confidence Report status

OAK DELL PARK must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for OAK DELL PARK.

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)
CA4300603
System type
Community Water System
Population served
104
Service connections
53
Ownership
privately owned
Water source
groundwater (wells)

OAK DELL PARK is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 104 people from groundwater.

As of August 1, 2026, its federal record holds 8 entries between 1984 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

Of the 8, 7 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 volatile organic chemicals, inorganic chemicals, and the Miscellaneous Other Rules.

Violation history

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2017 – December 31, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2017 – December 31, 2019

    Resolved

  • Notification, Public

    —

    No contaminant on record

    August 1, 1984 – August 31, 1984

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is OAK DELL PARK required to publish a Consumer Confidence Report?

Yes. OAK DELL PARK is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is OAK DELL PARK’s next Consumer Confidence Report due?

OAK DELL PARK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does OAK DELL PARK have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for OAK DELL PARK.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

ALLEN, JIM

408-205-9068

SARATOGA, CA 95070