NORCO, CA · Riverside County

NORCO, CITY OF Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID): CA3310025
System type: Community Water System
Population served: 25,068
Service connections: 7,100
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Simazine
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Picloram
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Check/Repeat/Confirmation
—
Benzene
July 1, 2012 – September 30, 2012
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2007 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
February 1, 1994 – February 28, 1994
Resolved
Notification, Public
—
No contaminant on record
November 1, 1989 – November 30, 1989
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
June 1, 1986 – June 30, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1980 – January 31, 1981
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
July 28, 1980 – October 27, 1980
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
January 1, 2024 – December 31, 2024	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Simazine	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Picloram	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Glyphosate	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring, Check/Repeat/Confirmation	Benzene	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2007 – December 31, 2009	Monitoring, Regular	Combined Uranium	—	Resolved
August 1, 2003 – August 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 1994 – February 28, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
November 1, 1989 – November 30, 1989	Notification, Public	—	—	Archived
June 1, 1986 – June 30, 1986	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
October 1, 1980 – January 31, 1981	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
July 28, 1980 – October 27, 1980	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

October 7, 2025State Administrative/Compliance Order without penalty issued1 linked violation
September 2, 2025State Administrative/Compliance Order without penalty issued42 linked violations
August 7, 2025State Compliance achieved42 linked violations
May 1, 2013State Compliance achieved1 linked violation
October 28, 2011State Formal Notice of Violation issued1 linked violation
October 28, 2011State Compliance achieved1 linked violation
February 2, 2010State Violation/Reminder Notice3 linked violations
December 1, 2009State Compliance achieved1 linked violation
November 19, 2007State Compliance achieved3 linked violations
October 4, 2007State Formal Notice of Violation issued3 linked violations
September 15, 2003State Compliance achieved1 linked violation
July 18, 2002State Violation/Reminder Notice1 linked violation
October 17, 2001State Administrative/Compliance Order without penalty issued1 linked violation
October 17, 2001State Compliance achieved1 linked violation
October 15, 2001State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 29, 1996State Compliance achieved2 linked violations
October 18, 1994State Compliance achieved8 linked violations

Contact

NELSON, SAM

951-270-5677

NORCO, CA 92860