PlainEnviro

RIVERDALE PUBLIC UTILITY DISTRICT

PWSID: CA1010028 · Riverdale, CA · Serves 2,756 people

According to EPA Safe Drinking Water Information System (SDWIS), RIVERDALE PUBLIC UTILITY DISTRICT (PWSID CA1010028) in Riverdale, CA is listed as a CWS water system covering about 2,756 people. The same extract lists 104 health-based violation records spanning 1992-2025. Those 104 health-based rows for RIVERDALE PUBLIC UTILITY DISTRICT cover contaminants such as Arsenic, Coliform (TCR), Fluoride; they remain historical EPA registry entries, not a current compliance or drinkability score.

View saved records
Health-Based Records

RIVERDALE PUBLIC UTILITY DISTRICT has 104 health-based violation records in this historical extract. Monitoring and reporting records are not included.

Population Served
2,756
Health-Based Violation Records
104
Distinct Contaminant Codes
3
Source Type
Groundwater

PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Arsenic, Coliform (TCR), Fluoride. Recorded violations span 1992–2025. Day-to-day primacy enforcement for this system runs through the California drinking-water program, not EPA directly.

A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the California state drinking-water program's public portal.

System Details

EPA ID (PWSID)
CA1010028
System Type
CWS
Water Source
Groundwater
Location
Riverdale, CA
Population Served
2,756
Health Violations
Yes (104)

What contaminants are in this water system?

Contaminant Violations Health-Based
Arsenic 90 90
Coliform (TCR) 12 12
Fluoride 2 2

Violation History (104)

Contaminant Health Date
Fluoride Yes Jan 1, 2025
Fluoride Yes Jan 1, 2025
Arsenic Yes Apr 1, 2014
Arsenic Yes Apr 1, 2014
Arsenic Yes Apr 1, 2014
Arsenic Yes Jan 1, 2014
Arsenic Yes Jan 1, 2014
Arsenic Yes Jan 1, 2014
Arsenic Yes Oct 1, 2013
Arsenic Yes Oct 1, 2013
Arsenic Yes Oct 1, 2013
Coliform (TCR) Yes Sep 1, 2013
Coliform (TCR) Yes Sep 1, 2013
Coliform (TCR) Yes Sep 1, 2013
Arsenic Yes Jul 1, 2013
Arsenic Yes Jul 1, 2013
Arsenic Yes Jul 1, 2013
Arsenic Yes Apr 1, 2013
Arsenic Yes Apr 1, 2013
Arsenic Yes Apr 1, 2013
Arsenic Yes Jan 1, 2013
Arsenic Yes Jan 1, 2013
Arsenic Yes Jan 1, 2013
Arsenic Yes Oct 1, 2012
Arsenic Yes Oct 1, 2012
Arsenic Yes Oct 1, 2012
Arsenic Yes Jul 1, 2012
Arsenic Yes Jul 1, 2012
Arsenic Yes Jul 1, 2012
Arsenic Yes Apr 1, 2012
Arsenic Yes Apr 1, 2012
Arsenic Yes Apr 1, 2012
Arsenic Yes Jan 1, 2012
Arsenic Yes Jan 1, 2012
Arsenic Yes Jan 1, 2012
Arsenic Yes Oct 1, 2011
Arsenic Yes Oct 1, 2011
Arsenic Yes Oct 1, 2011
Arsenic Yes Jul 1, 2011
Arsenic Yes Jul 1, 2011
Arsenic Yes Jul 1, 2011
Arsenic Yes Apr 1, 2011
Arsenic Yes Apr 1, 2011
Arsenic Yes Apr 1, 2011
Arsenic Yes Jan 1, 2011
Arsenic Yes Jan 1, 2011
Arsenic Yes Jan 1, 2011
Arsenic Yes Oct 1, 2010
Arsenic Yes Oct 1, 2010
Arsenic Yes Oct 1, 2010
Arsenic Yes Jul 1, 2010
Arsenic Yes Jul 1, 2010
Arsenic Yes Jul 1, 2010
Arsenic Yes Apr 1, 2010
Arsenic Yes Apr 1, 2010
Arsenic Yes Apr 1, 2010
Arsenic Yes Jan 1, 2010
Arsenic Yes Jan 1, 2010
Arsenic Yes Jan 1, 2010
Arsenic Yes Oct 1, 2009
Arsenic Yes Oct 1, 2009
Arsenic Yes Oct 1, 2009
Arsenic Yes Jul 1, 2009
Arsenic Yes Jul 1, 2009
Arsenic Yes Jul 1, 2009
Arsenic Yes Apr 1, 2009
Arsenic Yes Apr 1, 2009
Arsenic Yes Apr 1, 2009
Arsenic Yes Jan 1, 2009
Arsenic Yes Jan 1, 2009
Arsenic Yes Jan 1, 2009
Arsenic Yes Oct 1, 2008
Arsenic Yes Oct 1, 2008
Arsenic Yes Oct 1, 2008
Arsenic Yes Apr 1, 2008
Arsenic Yes Apr 1, 2008
Arsenic Yes Apr 1, 2008
Arsenic Yes Jan 1, 2008
Arsenic Yes Jan 1, 2008
Arsenic Yes Jan 1, 2008
Arsenic Yes Jul 1, 2007
Arsenic Yes Jul 1, 2007
Arsenic Yes Jul 1, 2007
Arsenic Yes Apr 1, 2007
Arsenic Yes Apr 1, 2007
Arsenic Yes Apr 1, 2007
Arsenic Yes Oct 1, 2006
Arsenic Yes Oct 1, 2006
Arsenic Yes Oct 1, 2006
Arsenic Yes Jul 1, 2006
Arsenic Yes Jul 1, 2006
Arsenic Yes Jul 1, 2006
Arsenic Yes Apr 1, 2006
Arsenic Yes Apr 1, 2006
Arsenic Yes Apr 1, 2006
Coliform (TCR) Yes Jan 1, 2005
Coliform (TCR) Yes Jan 1, 2005
Coliform (TCR) Yes Jan 1, 2005
Coliform (TCR) Yes Sep 1, 1993
Coliform (TCR) Yes Sep 1, 1993
Showing 100 of 104 violations.

Frequently Asked Questions

What does EPA SDWIS list for RIVERDALE PUBLIC UTILITY DISTRICT?
RIVERDALE PUBLIC UTILITY DISTRICT has 104 health-based violation records in this historical extract. Monitoring and reporting records are not included. The system uses groundwater water as its source.
How many people does RIVERDALE PUBLIC UTILITY DISTRICT serve?
RIVERDALE PUBLIC UTILITY DISTRICT serves 2,756 people in Riverdale, CA. It is classified as a CWS water system.
What violations does RIVERDALE PUBLIC UTILITY DISTRICT have?
RIVERDALE PUBLIC UTILITY DISTRICT has 104 health-based violation records in PlainEnviro's extract spanning 1992–2025. Monitoring and reporting records are not included.
What contaminants have been found in RIVERDALE PUBLIC UTILITY DISTRICT water?
Violations have been recorded for 3 contaminants. The most frequent: Arsenic, Coliform (TCR), Fluoride.

Compare beyond California

Nationwide peers by violations & population served

Cross-state SDWIS systems nearest RIVERDALE PUBLIC UTILITY DISTRICT on cumulative violation count (104) and EPA-reported population served (2,756). Violation-count peers include NEW HAMPTON VILLAGE PCT, MEADOWS AT CROSS RIVER, STROUD UTILITIES AUTHORITY. Population peers include FAIRMOUNT WATER WORKS, COLORADO CITY MD, DEER CREEK WATER.

Similar violation count

Nearest cross-state community systems (500+ served) by SDWIS violations on record.

Similar population served

Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).

Nearby Water Systems

CITY OF FRESNO
Fresno · 545,716 served
Clean
CITY OF CLOVIS
Clovis · 130,130 served
Clean
CALIFORNIA STATE UNIVERSITY FRESNO
Fresno · 41,000 served
Clean
CITY OF SANGER
Sanger · 26,357 served
1 viol.
REEDLEY, CITY OF
Reedley · 26,076 served
Clean
COALINGA-CITY
Coalinga · 17,277 served
14 viol.
KERMAN, CITY OF
Kerman · 17,256 served
Clean
PINEDALE COUNTY WATER DISTRICT
Pinedale · 16,736 served
Clean
CITY OF PARLIER
Parlier · 14,576 served
1 viol.
MENDOTA, CITY OF
Mendota · 11,404 served
3 viol.
HURON, CITY OF
Huron · 9,306 served
34 viol.
FIREBAUGH CITY
Firebaugh · 8,096 served
4 viol.

Explore More

California Water Systems → All States → Contaminants →

About This Data

RIVERDALE PUBLIC UTILITY DISTRICT (CA1010028) is drawn from EPA SDWIS. Nearby county systems in this extract include CITY OF FRESNO; CITY OF CLOVIS; CALIFORNIA STATE UNIVERSITY FRESNO; CITY OF SANGER. Health-based rows (104 MCL/TT) are historical registry state, not a current drinkability score.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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