Water Quality Report

Spokane, WA (99251): 3 Violations Recorded for Mapped Water Systems

EPA data combined for 2 water systems mapped to this ZIP (largest mapped system: Whitworth Water District 2)

PFAS Detected High County Radon Potential

EPA records for the water systems mapped to 99251 in Spokane, WA contain 3 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

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 PFAS above MCL 3 non-health-based violation records in EPA data
Lead Risk Below action level 0.0013 mg/L, 90th percentile, sample period ending 2024-12-31
NFIP Claim History N/A
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 3 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0013 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
Contaminant Summary
Violations on record (not health-based)
3 violations PFAS detected
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: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
2
Water Systems
26,883
People Served
0
Health Violations (since 2021)
Groundwater
Water Source
0.0013 mg/L
Reported Lead Result
Zone 1
County Radon Potential · High

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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
94/100
Observed
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
Unknown
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 3 of 4 components and 2 of 3 domains observed.

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

Safety & Health (8) HIGH

Your Water System

ZIP code 99251 in Spokane, Washington is mapped to the water system Whitworth Water District 2 (EPA ID: WA5396601). This system provides water to approximately 26,883 people from groundwater sources.

There are 2 community water systems serving this area.

Water Systems Serving This Area

System Name EPA ID Population Source
Whitworth Water District 2 WA5396601 26,883 Groundwater
Whitworth University WA5396580 1,200 Groundwater

Other Water Quality Reports in Washington

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Whitworth Water District 2 (WA5396601) on EPA.gov.

3 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 →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 99251. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.

Detected compounds: PFBS, PFOS, PFPeA, PFHxA.

Highest measured level: 0.0052 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (9) HIGH
Home & Infrastructure (3) OK
Cost & Community (6) OK

CPSC product recall notices

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

View all recalls →

📊 CPSC · View source →

Frequently Asked Questions

Is the tap water in 99251 safe to drink?

EPA SDWIS records 3 violations since 2021 across the water systems mapped to ZIP 99251 (primary system: Whitworth Water District 2), including 0 health-based. The violation table above shows which system each record belongs to. 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 99251's water come from?

The recorded water source for Whitworth Water District 2, a system mapped to ZIP code 99251, is Groundwater. This system serves approximately 26,883 people.

How can I get my water tested in Spokane?

If Whitworth Water District 2 supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 99251 tap water?

The Lead and Copper Rule record selected for 99251 reports a 90th-percentile lead result of 0.0013 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 99251?

99251 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Spokane County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 99251's water?

Yes, PFAS have been detected in samples from water systems mapped to 99251. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

How to cite this page

APA ZipCheckup. (2026). Spokane, WA (99251): 3 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/99251/
BibTeX 
@misc{zipcheckup-report-99251,
  author = {{ZipCheckup}},
  title  = {{Spokane, WA (99251): 3 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/99251/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 99251

ZIP Code City, State Distance Grade Violations
99210 Spokane, WA <1 mi N/A 0
99211 Spokane, WA <1 mi N/A 0
99214 Spokane, WA <1 mi N/A 0
99215 Spokane, WA <1 mi N/A 0
99219 Spokane, WA <1 mi N/A 0
99220 Spokane, WA <1 mi N/A 0
99228 Spokane, WA <1 mi N/A 0
99252 Spokane, WA <1 mi N/A 0
99256 Spokane, WA <1 mi N/A 0
99258 Spokane, WA <1 mi D 0

Contaminants Detected in 99251

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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Coverage: 13/17 risk factors Data sources →
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