Compliance record
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 | 9492 µg/L 95% of the EPA limit 10000 µg/L
worst single sample: 11752 µg/L | 2660/2668 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 6 µg/L 120% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 9.2 µg/L | 208/2025 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 1.8 µg/L 36% of the EPA limit 5 µg/L
worst single sample: 3.5 µg/L | 201/2025 | SYR4 | 2012–2019 |
| Trichloroethylene | 2.405 µg/L 48% of the EPA limit 5 µg/L
worst single sample: 3.3 µg/L | 200/2025 | SYR4 | 2012–2019 |
| TTHM | 4.56 µg/L 5.7% of the EPA limit 80 µg/L
worst single sample: 8.4 µg/L | 89/100 | SYR4 | 2013–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 40/40 | LCR | 2022 |
| Dibromochloromethane | 2.01 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 30/100 | SYR4 | 2013–2019 |
| Fluoride | 910 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 1000 µg/L | 19/19 | SYR4 | 2012–2019 |
| Bromodichloromethane | 2.035 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 14/100 | SYR4 | 2013–2019 |
| Bromoform | 1.81 µg/L No EPA limit set
worst single sample: 1.9 µg/L | 7/100 | SYR4 | 2013–2019 |
| Combined Uranium | 25.926 µg/L 86% of the EPA limit 30 µg/L
worst single sample: 26.82 µg/L | 7/8 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 5.14 µg/L 8.6% of the EPA limit 60 µg/L
worst single sample: 5.5 µg/L | 5/100 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 2.45 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 4/100 | SYR4 | 2013–2019 |
| Chloroform | 3.19 µg/L No EPA limit set
worst single sample: 3.4 µg/L | 3/100 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 3.85 µg/L No EPA limit set
worst single sample: 4.1 µg/L | 3/100 | SYR4 | 2013–2019 |
| Arsenic | 3.2 µg/L 32% of the EPA limit 10 µg/L | 1/11 | SYR4 | 2012–2018 |
| Chromium | 12 µg/L 12% of the EPA limit 100 µg/L | 1/11 | SYR4 | 2012–2018 |
| Dibromoacetic Acid | 1.1 µg/L No EPA limit set | 1/100 | SYR4 | 2013–2019 |
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBariumBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumDichloromethaneDi(2-ethylhexyl) PhthalateEthylbenzeneHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneThallium, TotalTolueneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Sunny Slope Water Co.
Is Sunny Slope Water Co. tap water safe to drink?
EPA monitoring detected 18 contaminants in Sunny Slope Water Co.'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 Sunny Slope Water Co.'s water?
EPA monitoring detected Nitrate, Tetrachloroethylene, Carbon Tetrachloride, Trichloroethylene, TTHM, and others. The full list with the level and data source for each is above.
How many people does Sunny Slope Water Co. serve?
Sunny Slope Water Co. reports serving 25,252 people in California, per its EPA record.
Has Sunny Slope Water Co. had any water quality violations?
The EPA has no formal drinking-water violations on file for Sunny Slope Water Co..
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.