Compliance record
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5491.8 µg/L 55% of the EPA limit 10000 µg/L
worst single sample: 6200 µg/L | 532/1038 | SYR4 | 2012–2019 |
| TTHM | 44.6 µg/L 56% of the EPA limit 80 µg/L
worst single sample: 62 µg/L | 175/250 | SYR4 | 2012–2019 |
| Dibromochloromethane | 16 µg/L No EPA limit set
worst single sample: 20 µg/L | 134/250 | SYR4 | 2012–2019 |
| Bromoform | 7.5 µg/L No EPA limit set
worst single sample: 8.2 µg/L | 121/250 | SYR4 | 2012–2019 |
| Bromodichloromethane | 15 µg/L No EPA limit set
worst single sample: 20 µg/L | 108/250 | SYR4 | 2012–2019 |
| Chloroform | 17.1 µg/L No EPA limit set
worst single sample: 23 µg/L | 99/250 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 21.7 µg/L 36% of the EPA limit 60 µg/L
worst single sample: 45 µg/L | 87/247 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 592500 µg/L 5925% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 900000 µg/L | 76/133 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.635 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 74/247 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 9.835 µg/L No EPA limit set
worst single sample: 11 µg/L | 72/247 | SYR4 | 2012–2019 |
| Fluoride | 567 µg/L 14% of the EPA limit 4000 µg/L
worst single sample: 590 µg/L | 54/54 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.065 µg/L No EPA limit set
worst single sample: 8.5 µg/L | 48/247 | SYR4 | 2012–2019 |
| Arsenic | 4.53 µg/L 45% of the EPA limit 10 µg/L
worst single sample: 4.6 µg/L | 35/65 | SYR4 | 2012–2019 |
| Combined Uranium | 19.7201 µg/L 66% of the EPA limit 30 µg/L
worst single sample: 23.691 µg/L | 32/32 | SYR4 | 2012–2019 |
| Lead | 0.0022 mg/L 15% of the EPA limit 0.0150 mg/L | 29/29 | LCR | 2025 |
| Monochloroacetic Acid | 4.48 µg/L No EPA limit set
worst single sample: 4.7 µg/L | 25/247 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 2.08 µg/L No EPA limit set
worst single sample: 2.2 µg/L | 13/247 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.7000 µg/L 14% of the EPA limit 5 µg/L | 13/220 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.5478 pCi/L 11% of the EPA limit 5 pCi/L
worst single sample: 0.5560 pCi/L | 3/3 | SYR4 | 2012–2013 |
| Lithium | 34.2938 µg/L No EPA limit set | 3/24 | UCMR-5 | 2025 |
| Barium | 102.75 µg/L 5.1% of the EPA limit 2000 µg/L
worst single sample: 104 µg/L | 2/65 | SYR4 | 2012–2019 |
| Chromium | 2.2 µg/L 2.2% of the EPA limit 100 µg/L | 1/57 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.84 pCi/L No EPA limit set | 1/1 | SYR4 | 2019 |
| Selenium | 2.9 µg/L 5.8% of the EPA limit 50 µg/L | 1/67 | SYR4 | 2012–2019 |
84 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 EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Golden State Wc - West Orange County
Is Golden State Wc - West Orange County tap water safe to drink?
EPA monitoring detected 29 contaminants in Golden State Wc - West Orange County'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 Wc - West Orange County's water?
EPA monitoring detected Nitrate, TTHM, Dibromochloromethane, Bromoform, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Golden State Wc - West Orange County serve?
Golden State Wc - West Orange County reports serving 114,379 people in California, per its EPA record.
Has Golden State Wc - West Orange County had any water quality violations?
The EPA has no formal drinking-water violations on file for Golden State Wc - West Orange County.
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.