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Community Water System · PWS WA5300650

Airway Heights City Of

Airway, Washington 99001 - drinking water served from groundwater sources to 9,489 people, tracked in EPA SDWIS and UCMR5.

9,489
People served
194
EPA violations
4
Health-based
4 PFAS
UCMR5 result

The verdict

EPA records 194 drinking-water violations at Airway Heights City Of, 2% of them health-based - above the Washington per-system average, and UCMR5 testing detected 4 PFAS compounds.

194
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
9,489
People served by this system
4
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Airway Heights City Of

Airway Heights City Of is a local-owned community water system that delivers drinking water to 9,489 residents in Airway, Washington (Spokane County) through 3,247 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 194 total violations for this system , of which 4 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 184 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is 1,2,4-Trichlorobenzene, recorded in 7 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 139.3 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%).

Airway Heights City Of's 194 violations sit above the Washington average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
9,489
Total Violations
194
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,247
County
Spokane
School/Daycare
No
MCL Violations
4
Monitoring Violations
184
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 7 2014
o-Dichlorobenzene MR 7 2014
p-Dichlorobenzene MR 7 2014
Vinyl chloride MR 7 2014
1,1-Dichloroethylene MR 7 2014
trans-1,2-Dichloroethylene MR 7 2014
1,2-Dichloroethane MR 7 2014
1,1,1-Trichloroethane MR 7 2014
Carbon tetrachloride MR 7 2014
1,2-Dichloropropane MR 7 2014
1,1,2-Trichloroethane MR 7 2014
Tetrachloroethylene MR 7 2014
Benzene MR 7 2014
Toluene MR 7 2014
Ethylbenzene MR 7 2014
cis-1,2-Dichloroethylene MR 7 2014
DICHLOROMETHANE MR 7 2014
Trichloroethylene MR 7 2014
Styrene MR 7 2014
CHLOROBENZENE MR 7 2014
Consumer Confidence Rule Other 6 2024
Lead and Copper Rule MR 6 2018
Diquat MR 5 2005
Coliform (TCR) MCL 4 2005
Coliform (TCR) MR 2 2012
BHC-GAMMA MR 1 2014
Toxaphene MR 1 2014
Di(2-ethylhexyl) adipate MR 1 2014
Simazine MR 1 2014
Di(2-ethylhexyl) phthalate MR 1 2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/8/2023 <6.00 ppt 6.00 ppt Not Detected
PFEESA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 8/8/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 8/8/2023 <8.00 ppt 8.00 ppt Not Detected
NEtFOSAA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFOS 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 8/8/2023 <7.00 ppt 7.00 ppt Not Detected
PFNA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 8/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFDoA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/8/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFTA 8/27/2025 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/27/2025 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/27/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/27/2025 <6.00 ppt 6.00 ppt Not Detected
PFHxA 7/29/2025 23.70 ppt 3.00 ppt Detected
ADONA 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/29/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/29/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/29/2025 <2.00 ppt 2.00 ppt Not Detected
HFPO-DA 7/29/2025 <5.00 ppt 5.00 ppt Not Detected
PFDoA 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 7/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 7/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFBA 7/29/2025 78.20 ppt 5.00 ppt Detected
PFBS 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpS 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 7/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 7/29/2025 3.20 ppt 3.00 ppt Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Airway Heights City Of.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WA5300650 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health, Office of Drinking Water is the primacy agency that licenses and inspects Airway Heights City Of under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health, Office of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Consumer Confidence Rule Other 6 SDWIS / WA5300650 / 7000
2018 Lead and Copper Rule MR 6 SDWIS / WA5300650 / 5000
2017 Total Haloacetic Acids (HAA5) MR 1 SDWIS / WA5300650 / 2456
2017 TTHM MR 1 SDWIS / WA5300650 / 2950
2014 1,2,4-Trichlorobenzene MR 7 SDWIS / WA5300650 / 2378
2014 o-Dichlorobenzene MR 7 SDWIS / WA5300650 / 2968
2014 p-Dichlorobenzene MR 7 SDWIS / WA5300650 / 2969
2014 Vinyl chloride MR 7 SDWIS / WA5300650 / 2976
2014 1,1-Dichloroethylene MR 7 SDWIS / WA5300650 / 2977
2014 trans-1,2-Dichloroethylene MR 7 SDWIS / WA5300650 / 2979
2014 1,2-Dichloroethane MR 7 SDWIS / WA5300650 / 2980
2014 1,1,1-Trichloroethane MR 7 SDWIS / WA5300650 / 2981
2014 Carbon tetrachloride MR 7 SDWIS / WA5300650 / 2982
2014 1,2-Dichloropropane MR 7 SDWIS / WA5300650 / 2983
2014 1,1,2-Trichloroethane MR 7 SDWIS / WA5300650 / 2985

How Airway Heights City Of Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Airway Heights City Of Washington avg Federal benchmark
Total violations 194 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 9,489 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Airway Heights City Of water safe to drink?
Airway Heights City Of (PWS ID: WA5300650) has 194 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 9,489 people using Groundwater sources.
How many people does Airway Heights City Of serve?
Airway Heights City Of serves 9,489 people in Airway, Washington. It is a Local-owned system using Groundwater water sources with 3,247 service connections.
What type of violations does Airway Heights City Of have?
Airway Heights City Of has 194 total violations: 4 health-based violations (MCL exceedances or treatment failures), 184 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Airway Heights City Of water?
Yes. UCMR5 testing detected 4 PFAS compounds in Airway Heights City Of's water supply: PFHxA, PFBA, PFHxS, PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Airway Heights City Of use?
Airway Heights City Of uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.