Water Quality Report

Mc Dermitt, NV (89421): No EPA Water System

No EPA-registered water system mapped - county-level context only

EPA records for the water systems mapped to 89421 in Mc Dermitt, NV do not contain a complete violation count and source window. ZipCheckup does not infer a clean record from missing or partial data.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality N/A
Lead Risk N/A
NFIP Claim History N/A
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: source date or period is not present in ZipCheckup's accepted source record Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
1
Water System
0
People Served
0
Health Violations (since 2021)
N/A
Water Source
$80K
Median Home Value78% below state median ($369K)

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Limited data available for ZIP 89421

This ZIP code has fewer data sources than average. We show the data available for this report from EPA, FEMA, Census, and other federal databases. As new data becomes available, this report will update automatically.

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
Unknown
Evidence missing
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
50/100
Observed
Annual EPA AirData AQI
Unknown
Evidence missing

Required domains

Drinking water
Unknown
Indoor environment
50/100
Outdoor environment
Unknown

Coverage: 1 of 4 components and 1 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (3) MODERATE

Other Water Quality Reports in Nevada

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Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). No EPA-registered water system is mapped to ZIP 89421. To look up the system serving a specific address, use the state SDWIS search tool.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →
Environmental Hazards (10) MODERATE
Home & Infrastructure (5) MODERATE
Cost & Community (7) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Mc Dermitt

Based on local data for ZIP 89421, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Gutter Installation & Repair

The median home in 89421 was built around 1970. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Mc Dermitt is 1970; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Homes built around 1970 may be on their second or third roof. A professional inspection can catch damage before leaks start.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 89421 safe to drink?

No EPA-registered public water system is mapped to ZIP 89421, so there is no federal water quality record to assess. Residents in this area typically rely on private wells or very small systems below EPA reporting thresholds. If you rely on a private well, the CDC recommends testing it at least once a year. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 89421's water come from?

There is no community water system directly registered with the EPA for ZIP 89421. Most residents rely on private wells drawing from groundwater, or are served by a neighboring district that isn't cross-referenced to this ZIP in federal data. Check with your local county health department to confirm your source.

How can I get my water tested in Mc Dermitt?

Since no EPA-registered water utility is mapped to ZIP 89421, contact your local county health department or hire a certified lab for independent home water testing. The EPA recommends testing private wells at least once a year.

How to cite this page

APA ZipCheckup. (2026). Mc Dermitt, NV (89421): No EPA Water System. https://zipcheckup.com/report/89421/
BibTeX 
@misc{zipcheckup-report-89421,
  author = {{ZipCheckup}},
  title  = {{Mc Dermitt, NV (89421): No EPA Water System}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/89421/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 89421

ZIP Code City, State Distance Grade Violations
89425 Orovada, NV 24.3 mi N/A 0
89426 Paradise Valley, NV 32.6 mi N/A 0
97710 Fields, OR 43.7 mi N/A 0
89404 Denio, NV 49.4 mi N/A 0
89446 Winnemucca, NV 62.0 mi N/A 0
97902 Arock, OR 65.9 mi N/A 0
97910 Jordan Valley, OR 65.9 mi N/A 0
89445 Winnemucca, NV 69.5 mi N/A 6
89414 Golconda, NV 71.0 mi N/A 0
83650 Murphy, ID 80.4 mi N/A 0

Overall safety breakdown

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Coverage: 9/17 risk factors Data sources →
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