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Tap water quality report

Glendora-City, Water Dept.

EPA monitoring tested this supplier for 79 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
16
detected
49,934
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
SWP
Ownership
Local government
Counties served
Los Angeles

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
2
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01

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
10000 µg/L 100%
of the EPA limit 10000 µg/L
 1614/1750 SYR4 2012–2019
Dibromochloromethane
27 µg/L
No EPA limit set
 243/248 SYR4 2012–2019
Bromoform
66 µg/L
No EPA limit set
 238/248 SYR4 2012–2019
TTHM
100 µg/L 125%
of the EPA limit, in the worst sample — 80 µg/L
 235/248 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
34 µg/L 57%
of the EPA limit 60 µg/L
 234/248 SYR4 2012–2019
Dibromoacetic Acid
15 µg/L
No EPA limit set
 229/248 SYR4 2012–2019
Bromodichloromethane
15 µg/L
No EPA limit set
 225/248 SYR4 2012–2019
Chloroform
58 µg/L
No EPA limit set
 105/248 SYR4 2012–2019
Dichloroacetic Acid
21 µg/L
No EPA limit set
 51/248 SYR4 2012–2019
Fluoride
460 µg/L 12%
of the EPA limit 4000 µg/L
 37/37 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 34/34 LCR 2025
Trichloroacetic Acid
14 µg/L
No EPA limit set
 33/248 SYR4 2012–2019
Barium
290 µg/L 14%
of the EPA limit 2000 µg/L
 17/21 SYR4 2012–2019
Arsenic
3.1 µg/L 31%
of the EPA limit 10 µg/L
 8/21 SYR4 2012–2019
Combined Uranium
3.278 µg/L 11%
of the EPA limit 30 µg/L
 6/9 SYR4 2013–2019
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
 4/248 SYR4 2012–2019
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDi(2-ethylhexyl) PhthalateEthylbenzeneHfpo-DaMercuryMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ZAMPIELLO, PAUL
Phone
626-852-4838
Email
PZampiello@cityofglendora.gov

Frequently asked questions about Glendora-City, Water Dept.

Is Glendora-City, Water Dept. tap water safe to drink?

EPA monitoring detected 16 contaminants in Glendora-City, Water Dept.'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 Glendora-City, Water Dept.'s water?

EPA monitoring detected Nitrate, Dibromochloromethane, Bromoform, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Glendora-City, Water Dept. serve?

Glendora-City, Water Dept. reports serving 49,934 people in California, per its EPA record.

Has Glendora-City, Water Dept. had any water quality violations?

The EPA has 2 violations on file for Glendora-City, Water Dept., 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.