Tap Truth EPA drinking water records, in plain English

Public water system record

Riverdale Public Utility District

Serves Riverdale, Fresno County, CA · 2,756 people served

Federal records show no health-based violations and 2 monitoring/reporting issues for Riverdale Public Utility District in the last ten years.

  • CA1010028
  • RIVERDALE
  • CA
  • 2,756 served

System profile

Source water Groundwater
ZIP 93656
EPA system ID CA1010028

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
2

Key facts

  • Riverdale Public Utility District draws water from 4 wells (2 of them for emergency, seasonal or other part-time use).
  • Most recent formal enforcement: compliance order (no penalty) by California, March 2017.
  • Record on file since 1988, with 39 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 888 service lines.

Check whether Riverdale Public Utility District 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.

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, 2016 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2013 Resolved

Full record since 1988

EPA's records for Riverdale Public Utility District go back to 1988. Before October 20, 2016 they list 39 health-based violations (34 resolved, 5 archived by EPA without a recorded fix) and 10 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 5 0
1990s 2 1
2000s 13 7
2010 to October 19, 2016 19 2

Most recent health-based violation before October 20, 2016: Arsenic, began April 2014, Resolved.

Show all 39 health-based violations before October 20, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Apr 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.037 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Jan 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.037 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Oct 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 38 µg/L, federal limit 10 µg/L (3.8 times the limit)
 Jul 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0384 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Apr 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 38.3 µg/L, federal limit 10 µg/L (3.8 times the limit)
 Jan 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0373 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Oct 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0382 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jul 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0382 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Apr 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.037 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Jan 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0368 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Oct 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jul 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0379 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Apr 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0384 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jan 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0397 mg/L, federal limit 0.01 mg/L (4 times the limit)
 Oct 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jul 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.045 mg/L, federal limit 0.01 mg/L (4.5 times the limit)
 Apr 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.04 mg/L, federal limit 0.01 mg/L (4 times the limit)
 Jan 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.047 mg/L, federal limit 0.01 mg/L (4.7 times the limit)
 Oct 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0498 mg/L, federal limit 0.01 mg/L (5 times the limit)
 Jul 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.037 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Apr 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0375 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jan 1, 2009 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0367 mg/L, federal limit 0.01 mg/L (3.7 times the limit)
 Oct 1, 2008 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0375 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Apr 1, 2008 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.035 mg/L, federal limit 0.01 mg/L (3.5 times the limit)
 Jan 1, 2008 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0375 mg/L, federal limit 0.01 mg/L (3.8 times the limit)
 Jul 1, 2007 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0362 mg/L, federal limit 0.01 mg/L (3.6 times the limit)
 Apr 1, 2007 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0386 mg/L, federal limit 0.01 mg/L (3.9 times the limit)
 Oct 1, 2006 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0293 mg/L, federal limit 0.01 mg/L (2.9 times the limit)
 Jul 1, 2006 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.0405 mg/L, federal limit 0.01 mg/L (4.1 times the limit)
 Apr 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
 Jan 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 1993 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 1992 Resolved
Fluoride
Contaminant limit exceeded
 Dec 1, 1989 Archived
Fluoride
Contaminant limit exceeded
 Sep 1, 1989 Archived
Fluoride
Contaminant limit exceeded
 Aug 1, 1989 Archived
Fluoride
Contaminant limit exceeded
 Jul 1, 1989 Archived
Fluoride
Contaminant limit exceeded
 Dec 1, 1988 Archived

Enforcement actions

California regulators and EPA took 6 formal enforcement actions against Riverdale Public Utility District between 2005 and 2017. The most recent was a compliance order (no penalty) in March 2017.

Date By Action Violations covered
Mar 21, 2017 California Compliance order (no penalty) 1 violation: Nitrate
Feb 4, 2015 California Compliance order (no penalty) 1 violation: Lead and Copper Rule
Jan 13, 2014 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Sep 25, 2008 EPA Compliance order (no penalty) 30 violations (30 health-based): Arsenic
Jul 10, 2006 California Compliance order (no penalty) 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
Apr 25, 2005 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform

Where the water comes from

Riverdale Public Utility District draws water from 4 wells (2 of them for emergency, seasonal or other part-time use).

Annual water quality report

Riverdale Public Utility District 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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