Is Upland, City of Tap Water Safe? Quality Report

Water source: Surface water
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	1987-08-01 → 1987-08-31
MR	Monitoring	Resolved	2019-10-01
MR	Monitoring	Resolved	2019-10-01
MR	Monitoring	Resolved	2015-01-01 → 2015-12-31
MR	Monitoring	Resolved	2015-01-01 → 2015-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfhxa	0.0055 µg/L	2/33	2025
Pfpea	0.0057 µg/L	2/33	2025
PFBS	0.0030 µg/L	1/33	2025

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	21470 µg/L 215% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 22600 µg/L	512/534	SYR4	2012–2019
TTHM	71 µg/L 89% of the EPA limit 80 µg/L worst single sample: 90 µg/L	241/280	SYR4	2012–2019
Bromodichloromethane	19 µg/L No EPA limit set worst single sample: 28 µg/L	217/284	SYR4	2012–2019
Dibromochloromethane	28 µg/L No EPA limit set worst single sample: 33 µg/L	200/284	SYR4	2012–2019
Chloroform	15 µg/L No EPA limit set worst single sample: 23 µg/L	196/279	SYR4	2012–2019
Bromoform	25 µg/L No EPA limit set worst single sample: 29 µg/L	180/284	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	16.95 µg/L 28% of the EPA limit 60 µg/L worst single sample: 27 µg/L	162/259	SYR4	2012–2019
Dichloroacetic Acid	7.2 µg/L No EPA limit set worst single sample: 11 µg/L	149/259	SYR4	2012–2019
Dibromoacetic Acid	7.5 µg/L No EPA limit set worst single sample: 8.6 µg/L	141/259	SYR4	2012–2019
Trichloroacetic Acid	8.46 µg/L No EPA limit set worst single sample: 16 µg/L	109/259	SYR4	2012–2019
1,2-DIBROMO-3-CHLOROPROPANE	0.2600 µg/L 130% of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L worst single sample: 0.3400 µg/L	106/179	SYR4	2012–2019
Nitrate-Nitrite	21000 µg/L 210% of the EPA limit, at the 95th percentile of samples — 10000 µg/L worst single sample: 22000 µg/L	79/87	SYR4	2012–2019
Tetrachloroethylene	14 µg/L 280% of the EPA limit, at the 95th percentile of samples — 5 µg/L worst single sample: 24 µg/L	64/92	SYR4	2012–2019
Trichloroethylene	2.13 µg/L 43% of the EPA limit 5 µg/L worst single sample: 3.1 µg/L	58/92	SYR4	2012–2019
Fluoride	420 µg/L 11% of the EPA limit 4000 µg/L worst single sample: 440 µg/L	30/30	SYR4	2012–2019
Arsenic	4.605 µg/L 46% of the EPA limit 10 µg/L worst single sample: 4.7 µg/L	20/88	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	18/18	LCR	2023
Combined Uranium	8.1205 µg/L 27% of the EPA limit 30 µg/L worst single sample: 8.344 µg/L	16/17	SYR4	2012–2017
Monobromoacetic Acid	1.6 µg/L No EPA limit set	8/259	SYR4	2012–2019
Gross Beta Particle Activity	9.24 pCi/L No EPA limit set worst single sample: 9.8 pCi/L	3/10	SYR4	2012–2017
Copper	380 µg/L 29% of the EPA limit 1300 µg/L	1/34	SYR4	2012–2019

88 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-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: GONZALES, RICHARD
Phone: 909-291-2966
Email: [email protected]

Frequently asked questions about Upland, City of

Is Upland, City of tap water safe to drink?

EPA monitoring detected 24 contaminants in Upland, 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 Upland, City of's water?

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

How many people does Upland, City of serve?

Upland, City of reports serving 78,376 people in California, per its EPA record.

Has Upland, City of had any water quality violations?

The EPA has 5 violations on file for Upland, City of, of which 1 is 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.