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Tap water quality report

Hawthorne-City Water Dept.

EPA monitoring tested this supplier for 92 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

92
contaminants tested
16
detected
44,718
people served
2
health-based violations
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
6
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1997-05-01 → 1997-05-31
MCL Health-based Resolved 1997-05-01 → 1997-05-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31
MR Monitoring Resolved 2019-01-01 → 2019-03-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
21.2715 µg/L
No EPA limit set
worst single sample: 29 µg/L
368/371 SYR4 2012–2019
Bromoform
26.0195 µg/L
No EPA limit set
worst single sample: 36.5 µg/L
368/371 SYR4 2012–2019
Dibromochloromethane
36.2905 µg/L
No EPA limit set
worst single sample: 45 µg/L
368/371 SYR4 2012–2019
TTHM
98.195 µg/L 123%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 121.83 µg/L
368/371 SYR4 2012–2019
Chloroform
17.214 µg/L
No EPA limit set
worst single sample: 21 µg/L
367/371 SYR4 2012–2019
Fluoride
841.8 µg/L 21%
of the EPA limit 4000 µg/L
worst single sample: 959 µg/L
283/283 SYR4 2012–2019
Dibromoacetic Acid
10 µg/L
No EPA limit set
worst single sample: 12 µg/L
120/120 SYR4 2012–2019
Dichloroacetic Acid
8.415 µg/L
No EPA limit set
worst single sample: 11 µg/L
120/120 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
23 µg/L 38%
of the EPA limit 60 µg/L
worst single sample: 25 µg/L
120/120 SYR4 2012–2019
Trichloroacetic Acid
6.89 µg/L
No EPA limit set
worst single sample: 7.2 µg/L
103/120 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
40/40 LCR 2023
Monobromoacetic Acid
1.36 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
15/120 SYR4 2012–2019
Lithium
26.8 µg/L
No EPA limit set
6/6 UCMR-5 2024
Copper
20.56 µg/L 1.6%
of the EPA limit 1300 µg/L
1/223 SYR4 2014–2019
Monochloroacetic Acid
2 µg/L
No EPA limit set
1/120 SYR4 2012–2019
Selenium
5.3 µg/L 11%
of the EPA limit 50 µg/L
1/4 SYR4 2014–2019
76 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateEthylene DibromideEthylbenzeneHexachlorobenzeneHfpo-DaHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HENRIE, TARRAH
Phone
408-367-8490
Email
[email protected]

Frequently asked questions about Hawthorne-City Water Dept.

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

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

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

How many people does Hawthorne-City Water Dept. serve?

Hawthorne-City Water Dept. reports serving 44,718 people in California, per its EPA record.

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

The EPA has 6 violations on file for Hawthorne-City Water Dept., 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.