CORONA, CA · Riverside County

CORONA, 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): CA3310037
System type: Community Water System
Population served: 168,575
Service connections: 44,981
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Regular
—
Radium-228
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
LASSO
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
2,4-D
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Chlordane
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Arsenic
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Cadmium
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Fluoride
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Mercury
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Nickel
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Endrin
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Diquat
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Glyphosate
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2017 – December 31, 2025
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2017 – December 31, 2025
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1997 – June 30, 2004
Resolved
Notification, Public
—
No contaminant on record
November 1, 1989 – November 30, 1989
Archived
Notification, Public
—
No contaminant on record
January 1, 1989 – January 31, 1989
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 30, 1980 – April 29, 1980
Archived
Notification, Public
—
No contaminant on record
October 30, 1979 – January 29, 1980
Archived
Notification, Public
—
No contaminant on record
October 28, 1979 – January 27, 1980
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 28, 1979 – January 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
January 1, 2017 – December 31, 2025	Monitoring, Regular	Radium-228	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	LASSO	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	2,4-D	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Chlordane	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Arsenic	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Cadmium	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Fluoride	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Mercury	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Nickel	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Thallium, Total	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Endrin	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Diquat	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Glyphosate	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2017 – December 31, 2025	Monitoring, Regular	Carbofuran	—	Archived
October 1, 1997 – June 30, 2004	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 1, 1989 – November 30, 1989	Notification, Public	—	—	Archived
January 1, 1989 – January 31, 1989	Notification, Public	—	—	Archived
March 30, 1980 – April 29, 1980	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 30, 1979 – January 29, 1980	Notification, Public	—	—	Archived
October 28, 1979 – January 27, 1980	Notification, Public	—	—	Archived
October 28, 1979 – January 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 17, 2022State Administrative/Compliance Order without penalty issued8 linked violations
September 15, 2022State Compliance achieved3 linked violations
October 12, 2004State Violation/Reminder Notice1 linked violation
August 1, 2004State Compliance achieved1 linked violation
January 29, 2004State Compliance achieved1 linked violation
October 21, 2003State Violation/Reminder Notice7 linked violations
August 22, 2001State Compliance achieved1 linked violation
April 1, 1996State Compliance achieved1 linked violation
March 15, 1993State Formal Notice of Violation issued2 linked violations
March 15, 1993State Compliance achieved8 linked violations

Contact

JOYCE, STACY

951-736-2265

CORONA, CA 92878