Compliance record
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOS | 0.0046 µg/L | 1/19 | 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 | 11353.3 µg/L 114% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 12043.8 µg/L | 676/746 | SYR4 | 2012–2019 |
| TTHM | 64.08 µg/L 80% of the EPA limit 80 µg/L
worst single sample: 143 µg/L | 130/153 | SYR4 | 2012–2019 |
| Chloroform | 45.834 µg/L No EPA limit set
worst single sample: 83.7 µg/L | 125/153 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.8495 µg/L No EPA limit set
worst single sample: 18.78 µg/L | 122/153 | SYR4 | 2012–2019 |
| Dibromochloromethane | 11.044 µg/L No EPA limit set
worst single sample: 55.2 µg/L | 109/153 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 46 µg/L 77% of the EPA limit 60 µg/L
worst single sample: 64 µg/L | 101/120 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 23 µg/L No EPA limit set
worst single sample: 44 µg/L | 98/120 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 23 µg/L No EPA limit set
worst single sample: 30 µg/L | 96/120 | SYR4 | 2012–2019 |
| Bromoform | 6.853 µg/L No EPA limit set
worst single sample: 63.12 µg/L | 79/153 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 9.68 µg/L No EPA limit set
worst single sample: 22 µg/L | 53/120 | SYR4 | 2012–2019 |
| Fluoride | 332 µg/L 8.3% of the EPA limit 4000 µg/L
worst single sample: 470 µg/L | 35/49 | SYR4 | 2012–2019 |
| Barium | 110 µg/L 5.5% of the EPA limit 2000 µg/L
worst single sample: 120 µg/L | 31/51 | SYR4 | 2012–2019 |
| Lead | 0.0032 mg/L 21% of the EPA limit 0.0150 mg/L | 27/27 | LCR | 2024 |
| Tetrachloroethylene | 1.1975 µg/L 24% of the EPA limit 5 µg/L
worst single sample: 1.26 µg/L | 22/104 | SYR4 | 2012–2019 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0306 µg/L 15% of the EPA limit 0.2000 µg/L
worst single sample: 0.0360 µg/L | 19/368 | SYR4 | 2012–2018 |
| Arsenic | 5 µg/L 50% of the EPA limit 10 µg/L
worst single sample: 6.7 µg/L | 18/61 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 124000 µg/L 1240% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 460000 µg/L | 16/28 | SYR4 | 2015–2019 |
| Combined Uranium | 6.80155 µg/L 23% of the EPA limit 30 µg/L
worst single sample: 7.003 µg/L | 14/17 | SYR4 | 2012–2019 |
| Lithium | 18.9 µg/L No EPA limit set | 7/19 | UCMR-5 | 2025 |
| Monochloroacetic Acid | 3.275 µg/L No EPA limit set
worst single sample: 3.5 µg/L | 6/120 | SYR4 | 2012–2019 |
| Nitrite | 0.2750 µg/L 0% of the EPA limit 1000 µg/L
worst single sample: 0.3300 µg/L | 6/48 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.955 µg/L No EPA limit set
worst single sample: 2 µg/L | 4/120 | SYR4 | 2012–2019 |
| Selenium | 4.57 µg/L 9.1% of the EPA limit 50 µg/L
worst single sample: 4.9 µg/L | 4/51 | SYR4 | 2012–2019 |
| Chromium | 18 µg/L 18% of the EPA limit 100 µg/L | 1/51 | SYR4 | 2012–2019 |
75 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndothallEthylbenzeneHexachlorobenzeneHfpo-DaHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Cws - North Garden
Is Cws - North Garden tap water safe to drink?
EPA monitoring detected 25 contaminants in Cws - North Garden'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 Cws - North Garden's water?
EPA monitoring detected Nitrate, TTHM, Chloroform, Bromodichloromethane, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Cws - North Garden serve?
Cws - North Garden reports serving 22,762 people in California, per its EPA record.
Has Cws - North Garden had any water quality violations?
The EPA has no formal drinking-water violations on file for Cws - North Garden.
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.