Tap Truth EPA drinking water records, in plain English

Public water system record

Sonoma County CSA 41-Freestone

Serves an area of Sonoma County, CA · 290 people served

Federal records show no health-based violations and no monitoring or reporting issues for Sonoma County CSA 41-Freestone in the last ten years.

  • CA4900549
  • SANTA ROSA
  • CA
  • 290 served

System profile

Source water Surface water
ZIP 95403
EPA system ID CA4900549

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
0

Key facts

  • Sonoma County CSA 41-Freestone draws water from 3 wells and 1 surface water intake.
  • Most recent formal enforcement: compliance order (no penalty) by California, May 2015.
  • Record on file since 1980, with 19 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 28 service lines.

Check whether Sonoma County CSA 41-Freestone 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.

None since October 2016, and no monitoring or reporting violations either.

Full record since 1980

EPA's records for Sonoma County CSA 41-Freestone go back to 1980. Before October 19, 2016 they list 19 health-based violations (19 resolved) and 18 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 12
1990s 0 4
2000s 2 0
2010 to October 18, 2016 17 2

Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began October 2015, Resolved.

Show all 19 health-based violations before October 19, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.0787 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
 Oct 1, 2015 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 Jul 1, 2015 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.078 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
 Apr 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
 Jan 1, 2013 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
 Oct 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.115 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Oct 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.16 mg/L, federal limit 0.06 mg/L (2.7 times the limit)
 Jul 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.143 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
 Jul 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.152 mg/L, federal limit 0.06 mg/L (2.5 times the limit)
 Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.126 mg/L, federal limit 0.08 mg/L (1.6 times the limit)
 Apr 1, 2011 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.105 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Jan 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.1355 mg/L, federal limit 0.06 mg/L (2.3 times the limit)
 Jan 1, 2011 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.0785 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
 Oct 1, 2010 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 2009 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Nov 1, 2007 Resolved

Enforcement actions

California regulators took 7 formal enforcement actions against Sonoma County CSA 41-Freestone between 2008 and 2015. The most recent was a compliance order (no penalty) in May 2015.

Date By Action Violations covered
May 6, 2015 California Compliance order (no penalty) 4 violations (4 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Sep 23, 2014 California Compliance order (no penalty) 1 violation: Total Trihalomethanes (TTHMs)
Jun 5, 2014 California Compliance order (no penalty) 1 violation: Total Coliform
Apr 23, 2013 California Compliance order (no penalty) 2 violations (2 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Mar 7, 2013 California Compliance order (no penalty) 2 violations (2 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)
Aug 19, 2010 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
Jan 16, 2008 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule

Where the water comes from

Sonoma County CSA 41-Freestone draws water from 3 wells and 1 surface water intake.

Annual water quality report

Sonoma County CSA 41-Freestone 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 Sonoma County CSA 41-Freestone 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