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Tap water quality report

Loma Linda, City of

EPA monitoring tested this supplier for 111 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
14
detected
25,129
people served
8
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.

8
health-based violations
9
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 2010-10-01 → 2010-10-31
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 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MR Monitoring Resolved 2022-09-01 → 2022-09-30

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
11000 µg/L 110%
of the EPA limit, in the worst sample — 10000 µg/L
 4742/6126 SYR4 2012–2019
Arsenic
41 µg/L 410%
of the EPA limit, in the worst sample — 10 µg/L
 532/771 SYR4 2012–2019
1,2-DIBROMO-3-CHLOROPROPANE
0.4600 µg/L 230%
of the EPA limit, in the worst sample — 0.2000 µg/L
 100/220 SYR4 2012–2019
Trichloroethylene
17 µg/L 340%
of the EPA limit, in the worst sample — 5 µg/L
 81/133 SYR4 2012–2019
Fluoride
2900 µg/L 73%
of the EPA limit 4000 µg/L
 65/65 SYR4 2012–2019
Nitrate-Nitrite
1000000 µg/L 10000%
of the EPA limit, in the worst sample — 10000 µg/L
 29/51 SYR4 2012–2019
Combined Uranium
16.39 µg/L 55%
of the EPA limit 30 µg/L
 26/26 SYR4 2015–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 26/26 LCR 2026
TTHM
4.7 µg/L 5.9%
of the EPA limit 80 µg/L
 10/23 SYR4 2013–2019
Dibromochloromethane
1.9 µg/L
No EPA limit set
 9/23 SYR4 2013–2019
1,1-Dichloroethylene
0.7800 µg/L 11%
of the EPA limit 7 µg/L
 6/46 SYR4 2012–2019
Bromoform
2.8 µg/L
No EPA limit set
 6/23 SYR4 2013–2019
Bromodichloromethane
1.1 µg/L
No EPA limit set
 3/23 SYR4 2013–2019
Mercury
1.5 µg/L 75%
of the EPA limit 2 µg/L
 1/64 SYR4 2012–2019
97 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
THAIPEJR, JARB
Phone
909-799-4401
Email
JTHAIPEJR@LOMALINDA-CA.GOV

Frequently asked questions about Loma Linda, City of

Is Loma Linda, City of tap water safe to drink?

EPA monitoring detected 14 contaminants in Loma Linda, City of'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 Loma Linda, City of's water?

EPA monitoring detected Nitrate, Arsenic, 1,2-DIBROMO-3-CHLOROPROPANE, Trichloroethylene, Fluoride, and others. The full list with the level and data source for each is above.

How many people does Loma Linda, City of serve?

Loma Linda, City of reports serving 25,129 people in California, per its EPA record.

Has Loma Linda, City of had any water quality violations?

The EPA has 9 violations on file for Loma Linda, City of, of which 8 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.