WaterVerge

Is Desert Aire, WA Tap Water Safe to Drink?

Graded A- with no contaminants above EPA limits. Here's everything we tested and how Desert Aire ranks. What to do next ↓

3K residents served 1 water system PWSID: WA5319056
Overall Score
89.5 / 100
Violations
None active
Last Updated
May 2026
Source
Groundwater
#49 of 294 in Washington Top 18% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.5/100
waterverge.com
A- 89.5/100

Desert Aire, WA — Water Quality Report

Desert Aire's drinking water received a grade of A- (89.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,856 residents using groundwater.

Lead levels were measured at 1.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 108 violations on record, including 6 health-based violations. All violations have been resolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Desert Aire's water

Desert Aire ranks #49 out of 294 cities in Washington for water quality, placing it above average in the state.

Desert Aire relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Desert Aire may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
89.5 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
37.5/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Desert Aire, WA water safe to drink?

Generally Safe

Based on EPA testing data, Desert Aire's tap water is generally safe to drink. The water system earned a grade of A- (89.5/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 2,856 residents using groundwater (wells).

2
Violations (5yr)
1.0 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Desert Aire

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Desert Aire's water quality assessment. Grade: A- (89.5/100).

Violation
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Disaster
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, MUDSLIDES

Federal disaster declaration (FEMA DR-4309). Flood event — may have impacted local water infrastructure.

Violation
26 drinking water violations recorded

Contaminants: BHC-GAMMA, LASSO, Dinoseb.

Violation
16 drinking water violations recorded

Contaminants: BHC-GAMMA, Methoxychlor, Hexachlorocyclopentadiene.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3227). Coastal Storm event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Desert Aire's water supply.

Lead Within Limits
Detected: 1.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Desert Aire's water system has 108 total violations on record, including 6 health-based violations. All violations have been resolved. 2 violations were issued in the last 5 years.

MRMCL
Most recent violations:
Jan 2021 TTHM Resolved
Jan 2021 Total Haloacetic Acids (HAA5) Resolved
Jan 2006 BHC-GAMMA Resolved
Jan 2006 LASSO Resolved
Jan 2006 Dinoseb Resolved

Flood & environmental risk

Grant County has experienced 2 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Columbia River Below Priest Rapids Dam.

SEVERE WINTER STORMS, FLOODING, LANDSLIDES, MUDSLIDES
Flood FEMA DR-4309
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA DR-3227

Where does Desert Aire's water come from?

Desert Aire's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,856 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Columbia River Below Priest Rapids Dam (river).

What Desert Aire residents can do

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
1.0 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
Compliance Record

Violation summary

108
Total violations
6
Health-based
0
Active / unresolved
Jan 2021
Most recent violation
Compliance Record

Violations & advisories

108 Total
0 Active
6 Health-based
108 Resolved
2 SNC
Violations by category
Synthetic Organic Chemicals
96
Total Coliform Rule
9
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Radionuclides and Revised Rad Rule
1
Jan 2021 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2021
Jan 2021 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2021
Jan 2006 Resolved
BHC-GAMMA
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
LASSO
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Dinoseb
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Pentachlorophenol
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Heptachlor
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Chlordane
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Dalapon
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
OXAMYL
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Endrin
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Di(2-ethylhexyl) adipate
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Simazine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Di(2-ethylhexyl) phthalate
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Atrazine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Aldicarb sulfone
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Aldicarb
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Pentachlorophenol
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
Benzo(a)pyrene
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Jan 2006 Resolved
2,4,5-TP
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Showing 20 of 108 violations
Environmental Risk

Drought conditions

D1 — moderate drought

Grant County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

27.6%
Months in D2+ (last 30y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

2
Declared disasters
Apr 2017
Most recent
Flood
Most common type

Grant County has experienced 2 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Apr 2017
SEVERE WINTER STORMS, FLOODING, LANDSLIDES, MUDSLIDES
Flood FEMA #4309
Sep 2005
HURRICANE KATRINA EVACUATION
Coastal Storm FEMA #3227

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 1.0 ppb from 1993 (2.0 ppb) to 2023 (1.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
2,856
Water Systems
1
Water Source

Where Desert Aire's water comes from

Groundwater

Desert Aire's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by private ownership and serves approximately 2,856 people through 1 water system.

Local Hydrology

Water bodies near Desert Aire

Desert Aire is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Columbia River Below Priest Rapids Dam
river
Infrastructure

Water systems serving Desert Aire

System Name PWSID Population Source
DESERT AIRE OWNER ASSN WA5319056 2,856 GW
Regional Comparison

How Desert Aire compares

Full Washington rankings →

Desert Aire's score of 89.5/100 is above the average of 53/100 among major Washington cities. It outscores 9 of 10 nearby cities.

Desert Aire (this city)
89.5
Seattle
42.3
Tacoma
32.2
Vancouver
32.9
Spokane
39.2
Kent
44.4
Washington avg
53
City Profile

About Desert Aire, WA

Wikipedia →

Desert Aire is a census-designated place (CDP) in Grant County, Washington, United States. The population was 2,288 at the 2020 census up from 1,626 at the 2010 census.

Economic Profile
$81,893
Median Income
$438,231
Median Home Value
$1,679/mo
Median Rent
0%
Unemployment
Community
35.6
Median Age
309
People / sq mi
29.6%
College Educated
83.1%
Homeownership
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Frequently asked questions

Is Desert Aire, WA tap water safe to drink?

Desert Aire's water quality earned a grade of A- (89.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #49 out of 294 cities tested in Washington.

What contaminants are in Desert Aire's water?

Lead was measured at 1.0 ppb (90th percentile). 108 violations are on record.

How is Desert Aire's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Desert Aire?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Desert Aire's water come from?

Desert Aire's water is sourced from Groundwater. The city has 1 water system serving approximately 2,856 residents.

What health violations has Desert Aire's water system had?

Desert Aire has 6 health-based violations on record. The most recent violation was recorded in January 2021. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. All health violations have been resolved.

Is Desert Aire's groundwater at risk of contamination?

Desert Aire uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 108 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Desert Aire's water compare to other cities?

Desert Aire ranks #49 out of 294 cities in Washington (better than 83% of state cities) and #2785 out of 15744 cities nationally (82th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Desert Aire's small water system affect quality?

Desert Aire's system serves approximately 2,856 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 108 violations on record.