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 |
|---|---|---|---|---|
| TTHM | 68.525 µg/L 86% of the EPA limit 80 µg/L
worst single sample: 87 µg/L | 104/104 | SYR4 | 2012–2019 |
| Bromoform | 38.6 µg/L No EPA limit set
worst single sample: 48.6 µg/L | 101/104 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.36 µg/L No EPA limit set
worst single sample: 13.7 µg/L | 97/104 | SYR4 | 2012–2019 |
| Dibromochloromethane | 22.3 µg/L No EPA limit set
worst single sample: 27.4 µg/L | 96/104 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 8.105 µg/L No EPA limit set
worst single sample: 10.9 µg/L | 94/103 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 8.935 µg/L 15% of the EPA limit 60 µg/L
worst single sample: 13.4 µg/L | 94/103 | SYR4 | 2012–2019 |
| Chloroform | 14.74 µg/L No EPA limit set
worst single sample: 19.4 µg/L | 85/104 | SYR4 | 2012–2019 |
| Nitrate | 824.9 µg/L 8.2% of the EPA limit 10000 µg/L
worst single sample: 904 µg/L | 76/182 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 815000 µg/L 8150% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 900000 µg/L | 39/91 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 38/38 | LCR | 2023 |
| Fluoride | 195 µg/L 4.9% of the EPA limit 4000 µg/L
worst single sample: 590 µg/L | 36/91 | SYR4 | 2012–2019 |
| Arsenic | 5.715 µg/L 57% of the EPA limit 10 µg/L
worst single sample: 5.8 µg/L | 18/91 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.33 µg/L No EPA limit set
worst single sample: 1.5 µg/L | 18/103 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 1.29 µg/L No EPA limit set
worst single sample: 1.3 µg/L | 3/103 | SYR4 | 2012–2019 |
65 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Clawa
Is Clawa tap water safe to drink?
EPA monitoring detected 14 contaminants in Clawa'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 Clawa's water?
EPA monitoring detected TTHM, Bromoform, Bromodichloromethane, Dibromochloromethane, Dibromoacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Clawa serve?
Clawa reports serving 2,320 people in California, per its EPA record.
Has Clawa had any water quality violations?
The EPA has no formal drinking-water violations on file for Clawa.
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.