Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
10
health-based violations
283
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2008-10-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-10-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-10-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-10-01 → 2008-12-31 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2008-07-01 → 2008-09-30 |
| MCL | Health-based | Resolved | 2005-10-01 → 2005-12-31 |
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 | 13 µg/L 130% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 24 µg/L | 1241/1293 | SYR4 | 2012–2019 |
| Combined Uranium | 38.148 µg/L 127% of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 85 µg/L | 1097/1099 | SYR4 | 2012–2019 |
| Nitrate | 6460 µg/L 65% of the EPA limit 10000 µg/L
worst single sample: 8700 µg/L | 936/1060 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 11.055 pCi/L No EPA limit set
worst single sample: 17 pCi/L | 870/1027 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 10 pCi/L 67% of the EPA limit 15 pCi/L
worst single sample: 24 pCi/L | 245/1030 | SYR4 | 2012–2019 |
| TTHM | 77.19 µg/L 96% of the EPA limit 80 µg/L
worst single sample: 109 µg/L | 242/327 | SYR4 | 2012–2019 |
| Chloroform | 75.86 µg/L No EPA limit set
worst single sample: 105 µg/L | 237/362 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 6580 µg/L 66% of the EPA limit 10000 µg/L
worst single sample: 8900 µg/L | 213/261 | SYR4 | 2012–2019 |
| Bromodichloromethane | 4.544 µg/L No EPA limit set
worst single sample: 12.2 µg/L | 202/361 | SYR4 | 2012–2019 |
| Fluoride | 1740 µg/L 44% of the EPA limit 4000 µg/L
worst single sample: 2800 µg/L | 170/184 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 3.21 pCi/L 64% of the EPA limit 5 pCi/L
worst single sample: 7 pCi/L | 139/1086 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.34 µg/L No EPA limit set
worst single sample: 10 µg/L | 131/361 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 87.29 µg/L 145% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 98.7 µg/L | 130/249 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 56.585 µg/L No EPA limit set
worst single sample: 64.4 µg/L | 120/250 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 33.06 µg/L No EPA limit set
worst single sample: 38.4 µg/L | 115/256 | SYR4 | 2012–2019 |
| Bromoform | 3.952 µg/L No EPA limit set
worst single sample: 4.85 µg/L | 53/362 | SYR4 | 2012–2019 |
| Barium | 69.4 µg/L 3.5% of the EPA limit 2000 µg/L
worst single sample: 110 µg/L | 43/43 | SYR4 | 2012–2019 |
| Copper | 14.5 µg/L 1.1% of the EPA limit 1300 µg/L
worst single sample: 21 µg/L | 31/83 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.16 µg/L No EPA limit set
worst single sample: 2.52 µg/L | 19/256 | SYR4 | 2012–2019 |
| Lead | 0.0027 mg/L 18% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2023 |
| Hexachlorocyclopentadiene | 0.1395 µg/L 0.3% of the EPA limit 50 µg/L
worst single sample: 0.1500 µg/L | 8/159 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.3365 µg/L No EPA limit set
worst single sample: 2.41 µg/L | 8/256 | SYR4 | 2012–2019 |
| Lithium | 59.2 µg/L No EPA limit set | 5/13 | UCMR-5 | 2025 |
| 2,4-D | 0.1700 µg/L 0.2% of the EPA limit 70 µg/L | 1/159 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 2.8 µg/L 47% of the EPA limit 6 µg/L | 1/159 | SYR4 | 2012–2019 |
| Lead | 0.5300 µg/L 3.5% of the EPA limit 15 µg/L | 1/32 | SYR4 | 2012–2019 |
| Nitrite | 200 µg/L 20% of the EPA limit 1000 µg/L | 1/264 | SYR4 | 2012–2019 |
87 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-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Carson City Public Works
Is Carson City Public Works tap water safe to drink?
EPA monitoring detected 27 contaminants in Carson City Public Works'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 Carson City Public Works's water?
EPA monitoring detected Arsenic, Combined Uranium, Nitrate, Gross Beta Particle Activity, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.
How many people does Carson City Public Works serve?
Carson City Public Works reports serving 59,000 people in Nevada, per its EPA record.
Has Carson City Public Works had any water quality violations?
The EPA has 283 violations on file for Carson City Public Works, of which 10 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.