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WaterVerge

Water quality report · updated Jul 2026

Is Wainwright, AK Tap Water Safe to Drink?

Graded D+, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
0.7 ppb lead, 90th percentile · low
6 unresolved violations
600 people served by 1 water system

PWSID AK2320086 · moderate data confidence · native american utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
D 52.9 / 100

#27 of 73Alaska cities
How we grade →

01The verdict: is Wainwright water safe?

Wainwright's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (52.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 600 residents using surface water (rivers, lakes, or reservoirs).

The concern

6 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 0.7 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

25 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Wainwright's drinking water received a grade of D+ (52.9 out of 100), indicating poor water quality. The city's 1 water system serves approximately 600 residents using surface water.

Lead levels were measured at 0.7 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 262 violations on record, including 48 health-based violations. 6 remain unresolved.

Wainwright ranks #27 out of 73 cities in Alaska for water quality, placing it mid-range in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. As a small community water system, Wainwright may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 25 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 52.9/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
1.9 / 45F
Lead & CopperLead at 0.7 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
10 / 10A
Source RiskWater source: Surface water.
4 / 5B

02What's in Wainwright's water

Every contaminant flagged in Wainwright, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.7 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Wainwright's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 262 violations on record, including 48 health-based violations. 6 remain unresolved.

6 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

28 monitoring & paperwork 1 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Wainwright's water quality assessment. Grade: D+ (52.9/100).
Violation21 drinking water violations recordedContaminants: cis-1,2-Dichloroethylene, p-Dichlorobenzene, Vinyl chloride.Resolved
Violation2 drinking water violations recordedContaminants: Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule.Resolved
Violation2 drinking water violations recordedContaminants: Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule.Resolved
Lead, 90th percentileppb · lower is better
0204060EPA action level · 15 ppb1993 — 48 ppb2001 — 15 ppb2002 — 3 ppb2004 — 0 ppb2005 — 2.3 ppb2008 — 4.1 ppb2011 — 0.88 ppb2013 — 0 ppb2014 — 0 ppb2016 — 2.3 ppb2017 — 2.3 ppb2019 — 4.3 ppb2022 — 0.53 ppb2025 — 0.70 ppb480.70199320042011201620222025

Down 47 ppb since 1993. Latest reading: 0.70 ppb (2025) — 5% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Wainwright's water comes from

Wainwright's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Local treatment

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

1 system

1 water system, operated under native american ownership.

Delivery

600 people

Residents served across Wainwright's service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by native american ownership and serves approximately 600 people through 1 water system.

System namePWSIDPopulationSource
NSBU - WAINWRIGHT AK2320086 600 Surface Water

Water bodies near Wainwright

Campbell C Nr Spenard · river Chester C · river

As a surface-water system, these water bodies may directly influence Wainwright's drinking water supply.

05How Wainwright compares

Scores for nearby Alaska cities on one line, with the average marked.

Juneau
65.4 · C+
Wainwright (this city)
52.9 · D+
Wasilla
42.5 · F
Anchorage
38.5 · F
Fairbanks
38.4 · F

dashed line = Alaska average (61/100)

Wainwright scores 52.9/100below the Alaska average of 61/100. It outscores 4 of 10 nearby cities. Full Alaska rankings →

North Slope Borough water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

06What to do at home

Steps matched to what testing actually found in Wainwright's water — not generic advice.

Extra protection

A basic carbon filter still helps

Wainwright's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Wainwright alerts

We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.

All water alerts →

Frequently asked questions

Is Wainwright, AK tap water safe to drink?

Wainwright's water quality earned a grade of D+ (52.9/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #27 out of 73 cities tested in Alaska.

What contaminants are in Wainwright's water?

Lead was measured at 0.7 ppb (90th percentile). 262 violations are on record.

How is Wainwright'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 Wainwright?

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

Where does Wainwright's water come from?

Wainwright's water is sourced from Surface water. The city has 1 water system serving approximately 600 residents.

What health violations has Wainwright's water system had?

Wainwright has 48 health-based violations on record. The most recent violation was recorded in April 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

How does Wainwright's water compare to other cities?

Wainwright ranks #27 out of 73 cities in Alaska (better than 63% of state cities) and #12511 out of 15382 cities nationally (19th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Wainwright's small water system affect quality?

Wainwright's system serves approximately 600 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 262 violations on record.

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About Wainwright, AK: Anchorage, officially the Municipality of Anchorage, is the most populous city in the U.S. state of Alaska. With a population of 291,247 at the 2020 census, it contains nearly 40 percent of the state's population. The Anchorage metropolitan area, which includes Anchorage and the neighboring Matanuska-Susitna Borough, had a population of 398,328 in 2020, accounting for more than half the state's population. At 1,706 sq mi (4,420 km2) of land area, the city is the fourth-largest by area in the U.S. Median household income $79,500 · median age 40.8 · 65.7% homeowners · 4.4% college educated. Wikipedia → Service area: 1 ZIP code across North Slope Borough.
Show ZIP codes 99782
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.