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 |
|---|---|---|---|---|
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L
worst single sample: 18 µg/L | 1523/2350 | SYR4 | 2012–2019 |
| Nitrate | 6908.82 µg/L 69% of the EPA limit 10000 µg/L
worst single sample: 8860 µg/L | 444/710 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 4.015 µg/L 80% of the EPA limit 5 µg/L
worst single sample: 4.4 µg/L | 58/433 | SYR4 | 2012–2019 |
| Barium | 200 µg/L 10% of the EPA limit 2000 µg/L | 46/74 | SYR4 | 2012–2018 |
| Fluoride | 928 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 990 µg/L | 33/160 | SYR4 | 2012–2019 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 29/29 | LCR | 2025 |
| Chloroform | 1.815 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 20/129 | SYR4 | 2012–2019 |
| Chromium | 14.2 µg/L 14% of the EPA limit 100 µg/L
worst single sample: 15 µg/L | 17/90 | SYR4 | 2012–2018 |
| Combined Uranium | 20.86 µg/L 70% of the EPA limit 30 µg/L | 17/31 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.085 µg/L No EPA limit set
worst single sample: 2.4 µg/L | 8/129 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 375825 µg/L 3758% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 500000 µg/L | 6/58 | SYR4 | 2012–2018 |
| Bromodichloromethane | 1.595 µg/L No EPA limit set
worst single sample: 1.7 µg/L | 4/129 | SYR4 | 2012–2019 |
| Bromoform | 1.29 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 2/129 | SYR4 | 2012–2019 |
| Copper | 173.7 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 180 µg/L | 2/74 | SYR4 | 2012–2018 |
| TTHM | 0.9980 µg/L 1.2% of the EPA limit 80 µg/L
worst single sample: 1 µg/L | 2/12 | SYR4 | 2018 |
| Dichloromethane | 0.8300 µg/L 17% of the EPA limit 5 µg/L | 1/433 | SYR4 | 2012–2019 |
| Lead | 1 µg/L 6.7% of the EPA limit 15 µg/L | 1/74 | SYR4 | 2012–2018 |
| Toluene | 1.5 µg/L 0.2% of the EPA limit 1000 µg/L | 1/433 | SYR4 | 2012–2019 |
81 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Cal Am - Parkway
Is Cal Am - Parkway tap water safe to drink?
EPA monitoring detected 24 contaminants in Cal Am - Parkway'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 Cal Am - Parkway's water?
EPA monitoring detected Arsenic, Nitrate, Tetrachloroethylene, Barium, Fluoride, and others. The full list with the level and data source for each is above.
How many people does Cal Am - Parkway serve?
Cal Am - Parkway reports serving 50,573 people in California, per its EPA record.
Has Cal Am - Parkway had any water quality violations?
The EPA has no formal drinking-water violations on file for Cal Am - Parkway.
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.