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 | 3690 µg/L 37% of the EPA limit 10000 µg/L
worst single sample: 5850 µg/L | 62/64 | SYR4 | 2012–2019 |
| Bromoform | 8.99 µg/L No EPA limit set
worst single sample: 9.2 µg/L | 8/10 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.7875 µg/L No EPA limit set
worst single sample: 8.4 µg/L | 8/10 | SYR4 | 2012–2019 |
| TTHM | 19.695 µg/L 25% of the EPA limit 80 µg/L
worst single sample: 20.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Bromodichloromethane | 3.496 µg/L No EPA limit set
worst single sample: 4 µg/L | 7/10 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 4995 µg/L 50% of the EPA limit 10000 µg/L
worst single sample: 5850 µg/L | 7/7 | SYR4 | 2013–2019 |
| Arsenic | 4.0325 µg/L 40% of the EPA limit 10 µg/L
worst single sample: 4.11 µg/L | 6/8 | SYR4 | 2012–2019 |
| Combined Uranium | 6.3725 µg/L 21% of the EPA limit 30 µg/L
worst single sample: 6.6 µg/L | 6/9 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 3.58 µg/L No EPA limit set
worst single sample: 3.7 µg/L | 5/8 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 5/5 | LCR | 2019 |
| Barium | 71.26 µg/L 3.6% of the EPA limit 2000 µg/L
worst single sample: 71.8 µg/L | 4/4 | SYR4 | 2015–2019 |
| Copper | 148.58 µg/L 11% of the EPA limit 1300 µg/L
worst single sample: 157 µg/L | 3/13 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 4.77 µg/L 7.9% of the EPA limit 60 µg/L
worst single sample: 4.8 µg/L | 3/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.48 µg/L No EPA limit set
worst single sample: 1.5 µg/L | 2/8 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 7.45 pCi/L No EPA limit set
worst single sample: 7.5 pCi/L | 2/2 | SYR4 | 2015 |
| Selenium | 2.7085 µg/L 5.4% of the EPA limit 50 µg/L
worst single sample: 2.74 µg/L | 2/4 | SYR4 | 2015–2019 |
| Toluene | 0.8375 µg/L 0.1% of the EPA limit 1000 µg/L
worst single sample: 0.8400 µg/L | 2/7 | SYR4 | 2013–2019 |
| Chloroform | 0.7300 µg/L No EPA limit set | 1/10 | SYR4 | 2012–2019 |
| Lead | 1.09 µg/L 7.3% of the EPA limit 15 µg/L | 1/7 | SYR4 | 2015–2019 |
63 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
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Frequently asked questions about Stampmill
Is Stampmill tap water safe to drink?
EPA monitoring detected 19 contaminants in Stampmill'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 Stampmill's water?
EPA monitoring detected Nitrate, Bromoform, Dibromochloromethane, TTHM, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Stampmill serve?
Stampmill reports serving 118 people in Nevada, per its EPA record.
Has Stampmill had any water quality violations?
The EPA has no formal drinking-water violations on file for Stampmill.
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.