Public water system record

Berryessa Estates (Lbrid)

Serves an area of Napa County, CA · 474 people served

Federal records show 4 health-based violations and no monitoring/reporting issues for Berryessa Estates (Lbrid) in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • CA2800526
  • NAPA
  • CA
  • 474 served

System profile

Source water Surface water
ZIP 94559
EPA system ID CA2800526

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Berryessa Estates (Lbrid) draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit), 2019.
  • Most recent formal enforcement: compliance order (no penalty) by California, July 2020.
  • Record on file since 1980, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 187 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.

Contaminant Rule family Start date Status Acute
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.106 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 94.5 µg/L, federal limit 80 µg/L (1.2 times the limit)
220 Jul 1, 2019 Resolved No

Full record since 1980

EPA's records for Berryessa Estates (Lbrid) go back to 1980. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 30 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 26
1990s 2 4
2010 to October 18, 2016 3 0
October 19, 2016 to 2019 2 0
2020s 2 0

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2016, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
Jan 1, 2016 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.086 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
Jul 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 1996 Resolved
Total Coliform
Contaminant limit exceeded
Feb 1, 1995 Resolved

Enforcement actions

California regulators took 6 formal enforcement actions against Berryessa Estates (Lbrid) between 1998 and 2020. The most recent was a compliance order (no penalty) in July 2020.

Date By Action Violations covered
Jul 27, 2020 California Compliance order (no penalty) 3 violations (3 health-based): Total Trihalomethanes (TTHMs)
Nov 18, 2019 California Compliance order (no penalty) 4 violations (4 health-based): Total Trihalomethanes (TTHMs)
Jun 9, 2016 California Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Dec 26, 2012 California Compliance order (no penalty) 1 violation (1 health-based): Total Trihalomethanes (TTHMs)
Nov 15, 2012 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Nov 27, 1998 California Compliance order (no penalty) 1 violation: Surface Water Treatment Rule

What the violations mean

Total Trihalomethanes (TTHMs)

4 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Berryessa Estates (Lbrid) draws water from 1 surface water intake.

Annual water quality report

Berryessa Estates (Lbrid) 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Berryessa Estates (Lbrid) for a copy.

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 California.