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Tap water quality report

Quartz Hill Water Dist.

EPA monitoring tested this supplier for 111 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
20
detected
19,100
people served
2
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.

2
health-based violations
4
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1995-11-01 → 1995-11-30
MCL Health-based Resolved 1995-11-01 → 1995-11-30
Other Monitoring Resolved 1999-06-01 → 1999-06-30
Other Monitoring Resolved 1999-06-01 → 1999-06-30

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
9492 µg/L 95%
of the EPA limit 10000 µg/L
 308/310 SYR4 2012–2019
Bromodichloromethane
29.7 µg/L
No EPA limit set
 124/124 SYR4 2012–2019
Bromoform
37.4 µg/L
No EPA limit set
 124/124 SYR4 2012–2019
TTHM
114.7 µg/L 143%
of the EPA limit, in the worst sample — 80 µg/L
 124/124 SYR4 2012–2019
Dibromoacetic Acid
15.2 µg/L
No EPA limit set
 123/124 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
24.5 µg/L 41%
of the EPA limit 60 µg/L
 123/124 SYR4 2012–2019
Dibromochloromethane
51.8 µg/L
No EPA limit set
 119/124 SYR4 2012–2019
Dichloroacetic Acid
10.6 µg/L
No EPA limit set
 92/124 SYR4 2012–2019
Chloroform
22.3 µg/L
No EPA limit set
 87/124 SYR4 2012–2019
Monobromoacetic Acid
1.9 µg/L
No EPA limit set
 56/124 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 40/40 LCR 2025
Arsenic
55 µg/L 550%
of the EPA limit, in the worst sample — 10 µg/L
 30/30 SYR4 2013–2019
Fluoride
870 µg/L 22%
of the EPA limit 4000 µg/L
 30/30 SYR4 2013–2019
Combined Uranium
11.175 µg/L 37%
of the EPA limit 30 µg/L
 24/27 SYR4 2013–2019
Trichloroacetic Acid
9.9 µg/L
No EPA limit set
 21/124 SYR4 2012–2019
Nitrate-Nitrite
760000 µg/L 7600%
of the EPA limit, in the worst sample — 10000 µg/L
 13/14 SYR4 2013–2019
Lithium
28.1 µg/L
No EPA limit set
 6/9 UCMR-5 2025
Chromium
16 µg/L 16%
of the EPA limit 100 µg/L
 5/29 SYR4 2013–2019
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 3/29 SYR4 2013–2019
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
 2/25 SYR4 2013–2019
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-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 DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SMITH, BRACH
Phone
661-943-3170
Email
bsmith@qhwd.org

Frequently asked questions about Quartz Hill Water Dist.

Is Quartz Hill Water Dist. tap water safe to drink?

EPA monitoring detected 20 contaminants in Quartz Hill Water Dist.'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 Quartz Hill Water Dist.'s water?

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

How many people does Quartz Hill Water Dist. serve?

Quartz Hill Water Dist. reports serving 19,100 people in California, per its EPA record.

Has Quartz Hill Water Dist. had any water quality violations?

The EPA has 4 violations on file for Quartz Hill Water Dist., of which 2 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.