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Tap water quality report

Covina Valley Water Company - Wholesale

EPA monitoring tested this supplier for 78 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
15
detected
0
people served
7
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Private
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.

7
health-based violations
7
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30
TT Health-based Archived 1993-06-01 → 1995-11-30

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
7700 µg/L 77%
of the EPA limit 10000 µg/L
 580/652 SYR4 2012–2019
TTHM
130 µg/L 163%
of the EPA limit, in the worst sample — 80 µg/L
 218/218 SYR4 2012–2019
Chloroform
66 µg/L
No EPA limit set
 180/218 SYR4 2012–2019
Bromodichloromethane
36 µg/L
No EPA limit set
 176/218 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
76 µg/L 127%
of the EPA limit, in the worst sample — 60 µg/L
 175/219 SYR4 2012–2019
Dichloroacetic Acid
35 µg/L
No EPA limit set
 174/219 SYR4 2012–2019
Trichloroacetic Acid
41 µg/L
No EPA limit set
 163/219 SYR4 2012–2019
Dibromochloromethane
55 µg/L
No EPA limit set
 155/218 SYR4 2012–2019
Arsenic
19 µg/L 190%
of the EPA limit, in the worst sample — 10 µg/L
 104/118 SYR4 2012–2019
Dibromoacetic Acid
17 µg/L
No EPA limit set
 94/219 SYR4 2012–2019
Bromoform
34 µg/L
No EPA limit set
 83/218 SYR4 2012–2019
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 59/62 SYR4 2012–2019
Barium
140 µg/L 7%
of the EPA limit 2000 µg/L
 7/14 SYR4 2012–2019
Combined Uranium
2.98 µg/L 9.9%
of the EPA limit 30 µg/L
 4/4 SYR4 2015–2018
Monobromoacetic Acid
1.7 µg/L
No EPA limit set
 1/219 SYR4 2012–2019
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MICHALKO, DAVE
Phone
626-332-8935
Email
dmichalko@vhwc.org

Frequently asked questions about Covina Valley Water Company - Wholesale

Is Covina Valley Water Company - Wholesale tap water safe to drink?

EPA monitoring detected 15 contaminants in Covina Valley Water Company - Wholesale'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 Covina Valley Water Company - Wholesale's water?

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

How many people does Covina Valley Water Company - Wholesale serve?

Covina Valley Water Company - Wholesale reports serving 0 people in California, per its EPA record.

Has Covina Valley Water Company - Wholesale had any water quality violations?

The EPA has 7 violations on file for Covina Valley Water Company - Wholesale, of which 7 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.