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Tap water quality report

Hi Desert Wd

EPA monitoring tested this supplier for 81 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
19
detected
26,411
people served
14
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground 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.

14
health-based violations
17
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1998-07-01 → 1998-07-31
MCL Health-based Resolved 1998-07-01 → 1998-07-31
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1993-07-01 → 1993-07-31
MCL Health-based Resolved 1992-11-01 → 1992-11-30
MCL Health-based Resolved 1992-11-01 → 1992-11-30
MCL Health-based Resolved 1992-11-01 → 1992-11-30
MCL Health-based Resolved 1992-11-01 → 1992-11-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0034 µg/L 1/13 2025
PFHXS 0.0030 µg/L 1/13 2025
Pfpea 0.0034 µg/L 1/13 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
5198 µg/L 52%
of the EPA limit 10000 µg/L
worst single sample: 11000 µg/L
4968/4970 SYR4 2012–2019
Arsenic
12 µg/L 120%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 13 µg/L
47/109 SYR4 2012–2019
Fluoride
700 µg/L 18%
of the EPA limit 4000 µg/L
worst single sample: 800 µg/L
30/30 SYR4 2012–2018
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2023
Chromium
5.8 µg/L 5.8%
of the EPA limit 100 µg/L
worst single sample: 6.3 µg/L
22/30 SYR4 2012–2018
Combined Uranium
18.476 µg/L 62%
of the EPA limit 30 µg/L
worst single sample: 20.711 µg/L
21/21 SYR4 2012–2019
Bromoform
11 µg/L
No EPA limit set
 17/17 SYR4 2014–2019
TTHM
19.4 µg/L 24%
of the EPA limit 80 µg/L
worst single sample: 21 µg/L
17/17 SYR4 2014–2019
Dibromochloromethane
6.625 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
16/17 SYR4 2014–2019
Bromodichloromethane
2.2 µg/L
No EPA limit set
 15/17 SYR4 2014–2019
Barium
73.8 µg/L 3.7%
of the EPA limit 2000 µg/L
worst single sample: 75 µg/L
13/29 SYR4 2012–2018
Dibromoacetic Acid
2.17 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
12/17 SYR4 2014–2019
Lithium
23 µg/L
No EPA limit set
 11/13 UCMR-5 2025
Monobromoacetic Acid
2.41 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
7/17 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
4 µg/L 6.7%
of the EPA limit 60 µg/L
 6/17 SYR4 2014–2019
Chloroform
0.6380 µg/L
No EPA limit set
worst single sample: 0.6400 µg/L
2/17 SYR4 2014–2019
62 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, TotalBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideDichloromethaneDichloroacetic AcidEthylene DibromideEthylbenzeneHfpo-DaLeadMercuryMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CULVER, TONY
Phone
760-365-8152
Email
[email protected]

Frequently asked questions about Hi Desert Wd

Is Hi Desert Wd tap water safe to drink?

EPA monitoring detected 19 contaminants in Hi Desert Wd'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 Hi Desert Wd's water?

EPA monitoring detected Nitrate, Arsenic, Fluoride, Lead, Chromium, and others. The full list with the level and data source for each is above.

How many people does Hi Desert Wd serve?

Hi Desert Wd reports serving 26,411 people in California, per its EPA record.

Has Hi Desert Wd had any water quality violations?

The EPA has 17 violations on file for Hi Desert Wd, of which 14 are health-based (a contaminant limit or required treatment was breached) and 1 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.