Tap Truth EPA drinking water records, in plain English

Public water system record

Six Acres Water Company

Serves an area of Sonoma County, CA · 66 people served

Federal records show 7 health-based violations and 1 monitoring/reporting issue for Six Acres Water Company in the last ten years, including an unresolved Surface Water Treatment Rule violation.

  • CA4900608
  • SAN FRANCISCO
  • CA
  • 66 served

System profile

Source water Groundwater under direct influence
ZIP 94133
EPA system ID CA4900608

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
0
Unresolved
1
Archived by EPA
6
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • Six Acres Water Company draws water from 1 well.
  • Most recent formal enforcement: compliance order (no penalty) by California, February 2023.
  • Record on file since 1980, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 22 service lines.

Check whether Six Acres Water Company serves your address

Address suggestions by Mapbox

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
Groundwater Rule
Treatment technique failure
 140 Jul 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Groundwater Rule
Treatment technique failure
 140 Jun 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Groundwater Rule
Treatment technique failure
 140 Nov 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Groundwater Rule
Treatment technique failure
 140 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Groundwater Rule
Treatment technique failure
 140 Sep 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Groundwater Rule
Treatment technique failure
 140 Aug 1, 2021 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Surface Water Treatment Rule
Treatment technique failure
 120 Jul 29, 2020 Active
Enforcement action in place
 No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Nitrate
Monitoring and reporting
 Jan 1, 2021 Resolved

Full record since 1980

EPA's records for Six Acres Water Company go back to 1980. Before October 19, 2016 they list no health-based violations and 50 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 7
1990s 0 4
2000s 0 2
2010 to October 18, 2016 0 37
2020s 7 1

Enforcement actions

California regulators took 10 formal enforcement actions against Six Acres Water Company between 2007 and 2023, filed as 11 records in EPA's data. The most recent was a compliance order (no penalty) in February 2023.

Date By Action Violations covered
Feb 9, 2023 California Compliance order (no penalty) 5 violations (5 health-based): Groundwater Rule
Mar 11, 2022 California Compliance order (no penalty) 1 violation: Nitrate
Jan 7, 2022 California Compliance order (no penalty) 1 violation (1 health-based): Groundwater Rule
Jul 30, 2020 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Jan 22, 2016 California Compliance order (no penalty) 34 violations: 1,2,4-Trichlorobenzene, cis-1,2-Dichloroethylene, Carbofuran, Dalapon, Dinoseb
Jan 12, 2016 California Compliance order (no penalty) 1 violation: Total Coliform
Dec 20, 2013 California Compliance order (no penalty) 2 violations: Total Coliform
Feb 28, 2013 California Compliance order (no penalty) 1 violation: Total Coliform
Dec 14, 2007 California Compliance order (no penalty) 1 violation: Atrazine
Jun 13, 2007 California Compliance order (no penalty) 1 violation: Nitrate

What the violations mean

Groundwater Rule

6 incidents

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Surface Water Treatment Rule

1 incident

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Six Acres Water Company draws water from 1 well.

Annual water quality report

Six Acres Water Company 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 Six Acres Water Company 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.

Certified drinking water labs by state EPA guidance for private wells