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Public water system record

Yocha Dehe Potable Water System

Serves Tancred, Yolo County, CA · 12,800 people served

Federal records show no health-based violations and 15 monitoring/reporting issues for Yocha Dehe Potable Water System in the last ten years.

  • 090605107
  • BROOKS
  • CA
  • 12,800 served

System profile

Source water Groundwater
ZIP 95606
EPA system ID 090605107

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
15

Key facts

  • Yocha Dehe Potable Water System draws water from 4 wells.
  • Record on file since 2005, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 56 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Combined Radium (-226 and -228)
Monitoring and reporting
 Jul 1, 2023 Resolved
Combined Uranium
Monitoring and reporting
 Jul 1, 2023 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
 Jul 1, 2023 Resolved
Chlordane
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
ETHYLENE DIBROMIDE
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
HEXACHLOROBENZENE
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Heptachlor epoxide
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Heptachlor
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Hexachlorocyclopentadiene
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Toxaphene
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Methoxychlor
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
BHC-GAMMA
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Endrin
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.

Full record since 2005

EPA's records for Yocha Dehe Potable Water System go back to 2005. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 2 1
2010 to October 18, 2016 0 2
2020s 0 15

Most recent health-based violation before October 19, 2016: Total Coliform, began April 2007, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Apr 1, 2007 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Aug 1, 2005 Resolved

Where the water comes from

Yocha Dehe Potable Water System draws water from 4 wells.

Annual water quality report

Yocha Dehe Potable Water System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 9.

Certified drinking water labs by state EPA guidance for private wells