Contaminant 0700
Unresolved Drinking water rule (140) violation cited in 2025 (contaminant 0700).
PWSID NV0001073 · GroundwaterPrivate
7,000 people served. 12 health-based SDWIS violations recorded in the past 5 years. 6 remain unresolved. Last cited 1 year ago.
Unresolved Drinking water rule (140) violation cited in 2025 (contaminant 0700).
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Unresolved Total Trihalomethanes Rule violation cited in 2021 (haloacetic acids (haa5)).
Unresolved Total Trihalomethanes Rule violation cited in 2021 (haloacetic acids (haa5)).
Health-based violations exceed an MCL or treatment-technique standard. Monitoring violations are reporting failures with no measured exceedance — they tell you the system isn't fully transparent, not that the water is unsafe today.
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation
OTHER
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled
OTHER; returned to compliance
OTHER; returned to compliance
Las Vegas, Nevada (Census place; block-group disparity scores aggregated by centroid containment): a service population of 644,835. Local disparity score for pm2.5 (fine particulate) sits below the reference (66). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 66 | below the reference |
| Ozone | 168 | well above the reference burden |
| Nitrogen dioxide (NO₂) | 144 | moderately above the reference |
| Diesel particulate | 162 | well above the reference burden |
| Toxic releases (RSEI) | 28 | well below the reference |
| Traffic proximity | 131 | moderately above the reference |
| Lead-paint risk (pre-1960 housing) | 33 | well below the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 59 | below the reference |
| Hazardous-waste site proximity | 131 | moderately above the reference |
| Underground storage tanks | 110 | moderately above the reference |
| NPDES wastewater proximity | 81 | below the reference |
| Drinking-water non-compliance | 0 | well below the reference |
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).
Source. EPA Safe Drinking Water Information System · retrieved 2026-05-07. Reporting period 2020-01-01 → 2026-05-07.
What this is not. SDWIS records compliance against federal MCLs — not a direct readout of tap-water concentrations. Active health-based violations are not the same as a current crisis; we link to the EPA record so you can verify return-to-compliance status before forming a conclusion.