Public water system record
Brentwood
Serves Brentwood, Contra Costa County, CA · 64,513 people served
Federal records show no health-based violations and no monitoring or reporting issues for Brentwood in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Brentwood draws water from 6 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, March 2007.
- Record on file since 1982, with 16 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 21,223 service lines.
Check whether Brentwood serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 1982
EPA's records for Brentwood go back to 1982. Before October 19, 2016 they list 16 health-based violations (11 resolved, 5 archived by EPA without a recorded fix) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 5 | 1 |
| 1990s | 8 | 1 |
| 2000s | 3 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2007, Resolved.
Show all 16 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1992 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1992 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1991 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Feb 1, 1984 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1984 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1983 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1982 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 1982 | Archived |
Enforcement actions
California regulators took 4 formal enforcement actions against Brentwood between 1992 and 2007. The most recent was a compliance order (no penalty) in March 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 26, 2007 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Apr 11, 2000 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jan 16, 1996 | California | Administrative penalty | 1 violation (1 health-based): Total Coliform |
| Dec 21, 1992 | California | Administrative penalty | 2 violations (2 health-based): Nitrate, Total Coliform |
Where the water comes from
Brentwood draws water from 6 wells (1 of them for emergency, seasonal or other part-time use). It also buys water from CCWD/Brentwood WTP and Randall-Bold Water Treatment Plant.
Buys water from
- CCWD/Brentwood WTP Concord, CA
- Randall-Bold Water Treatment Plant Concord, CA
Annual water quality report
Brentwood 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 California.
Certified drinking water labs by state EPA guidance for private wells