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Tap water quality report

Chino, City of

EPA monitoring tested this supplier for 112 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

112
contaminants tested
21
detected
86,435
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Local government
Counties served
San Bernardino

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
14
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2014-07-01
MR Monitoring Resolved 2014-07-01
MR Monitoring Resolved 2014-06-01
MR Monitoring Resolved 2014-06-01
MR Monitoring Resolved 2014-06-01
MR Monitoring Resolved 2014-06-01
MR Monitoring Resolved 2006-10-01
MR Monitoring Resolved 2006-10-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
56000 µg/L 560%
of the EPA limit, in the worst sample — 10000 µg/L
 5372/5694 SYR4 2012–2019
TTHM
96 µg/L 120%
of the EPA limit, in the worst sample — 80 µg/L
 232/241 SYR4 2012–2019
Dibromochloromethane
35 µg/L
No EPA limit set
 229/243 SYR4 2012–2019
Bromodichloromethane
21 µg/L
No EPA limit set
 226/243 SYR4 2012–2019
Bromoform
32 µg/L
No EPA limit set
 215/244 SYR4 2012–2019
Chloroform
23 µg/L
No EPA limit set
 211/242 SYR4 2012–2019
Dibromoacetic Acid
8.2 µg/L
No EPA limit set
 192/232 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
16 µg/L 27%
of the EPA limit 60 µg/L
 183/232 SYR4 2012–2019
Trichloroacetic Acid
6.1 µg/L
No EPA limit set
 134/232 SYR4 2012–2019
Dichloroacetic Acid
8.3 µg/L
No EPA limit set
 122/232 SYR4 2012–2019
Combined Uranium
9.983 µg/L 33%
of the EPA limit 30 µg/L
 28/33 SYR4 2012–2018
Fluoride
240 µg/L 6%
of the EPA limit 4000 µg/L
 20/20 SYR4 2012–2018
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2024
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
 9/232 SYR4 2012–2019
1,2-DIBROMO-3-CHLOROPROPANE
0.0860 µg/L 43%
of the EPA limit 0.2000 µg/L
 6/22 SYR4 2012–2018
Chromium
13 µg/L 13%
of the EPA limit 100 µg/L
 4/20 SYR4 2012–2018
Arsenic
4.4 µg/L 44%
of the EPA limit 10 µg/L
 3/20 SYR4 2012–2018
Barium
170 µg/L 8.5%
of the EPA limit 2000 µg/L
 3/20 SYR4 2012–2018
Picloram
2.1 µg/L 0.4%
of the EPA limit 500 µg/L
 2/22 SYR4 2012–2018
Trichloroethylene
1.8 µg/L 36%
of the EPA limit 5 µg/L
 2/27 SYR4 2012–2018
Nitrate-Nitrite
26000 µg/L 260%
of the EPA limit, in the worst sample — 10000 µg/L
 1/1 SYR4 2017
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
VICARIO III, PETE
Phone
909-334-3444
Email
pvicario@cityofchino.org

Frequently asked questions about Chino, City of

Is Chino, City of tap water safe to drink?

EPA monitoring detected 21 contaminants in Chino, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Chino, City of's water?

EPA monitoring detected Nitrate, TTHM, Dibromochloromethane, Bromodichloromethane, Bromoform, and others. The full list with the level and data source for each is above.

How many people does Chino, City of serve?

Chino, City of reports serving 86,435 people in California, per its EPA record.

Has Chino, City of had any water quality violations?

The EPA has 14 violations on file for Chino, City of, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.