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Golden State Water Co - Apple Vly South

EPA monitoring tested this supplier for 82 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

82
contaminants tested
12
detected
6,208
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Bernardino

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

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
3500 µg/L 35%
of the EPA limit 10000 µg/L
 42/42 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 25/25 LCR 2025
Fluoride
830 µg/L 21%
of the EPA limit 4000 µg/L
 6/6 SYR4 2014–2017
Nitrate-Nitrite
940000 µg/L 9400%
of the EPA limit, in the worst sample — 10000 µg/L
 4/4 SYR4 2014–2017
TTHM
4.1 µg/L 5.1%
of the EPA limit 80 µg/L
 2/10 SYR4 2014–2019
Arsenic
2.8 µg/L 28%
of the EPA limit 10 µg/L
 1/6 SYR4 2014–2017
Bromodichloromethane
1.2 µg/L
No EPA limit set
 1/10 SYR4 2014–2019
Combined Uranium
2.384 µg/L 7.9%
of the EPA limit 30 µg/L
 1/3 SYR4 2014
Dibromochloromethane
1.4 µg/L
No EPA limit set
 1/10 SYR4 2014–2019
Monochloroacetic Acid
3.2 µg/L
No EPA limit set
 1/10 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
3.2 µg/L 5.3%
of the EPA limit 60 µg/L
 1/10 SYR4 2014–2019
Lithium
21.6 µg/L
No EPA limit set
 1/5 UCMR-5 2025
70 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, TotalBariumBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDichloroacetic AcidEthylene DibromideEthylbenzeneHfpo-DaLeadMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TINOCO, OMAR
Phone
310-848-5505
Email
OMAR.TINOCO@GSWATER.COM

Frequently asked questions about Golden State Water Co - Apple Vly South

Is Golden State Water Co - Apple Vly South tap water safe to drink?

EPA monitoring detected 12 contaminants in Golden State Water Co - Apple Vly South'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 Golden State Water Co - Apple Vly South's water?

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

How many people does Golden State Water Co - Apple Vly South serve?

Golden State Water Co - Apple Vly South reports serving 6,208 people in California, per its EPA record.

Has Golden State Water Co - Apple Vly South had any water quality violations?

The EPA has no formal drinking-water violations on file for Golden State Water Co - Apple Vly South.

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.