CITY REPORT WA

Arlington, WA: 17 Violations - Home Safety 92/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Arlington: A.

Checked records flag no major concern; missing data is unknown.

Based on available records, Arlington, WA holds an A or B ZipCheckup grade.

How Arlington Compares

Arlington92/100
Washington avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
A · 92
Avg Safety Score
Zone 3
County Radon Potential (Low)
$557K
Median Home Value
$500
Est. Remediation (0.1% of home value)

Arlington Water: The Quick Version

  • Your city's water systems recorded 17 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0045 mg/L.
  • Homes built before 1986: 37% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.74.

Water Systems Serving Arlington

3 systems shown for Arlington, WA, from 5 on the federal list.

Overview

We track home safety data for 1 ZIP code in Arlington, Washington (population ~46,225), covering 5 community water systems serving approximately 191,833 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Arlington: A (92/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Arlington water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0045 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Consumer Confidence Rule Reporting 12 1
Nitrate Inorganic 10 1
Lead and Copper Rule Treatment Technique 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
98223 A 17 0 City of Arlington

All ZIP Codes in Arlington

  • 98223 [A] - 17 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Arlington

11.1%
Asthma (US: 9.8%)
9.1%
Diabetes (US: 10.4%)
15.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11.1% ↑
Diabetes 9.1% ↓
Mental Health 15.8% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Arlington

Consumer Confidence Rule 12 violations
Reporting
Nitrate 10 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Blue baby syndrome in infants
Lead and Copper Rule 4 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Arlington's Housing Stock?

1996
Median Build Year
37%
Built Before 1986
17%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Over the decades, Arlington accumulated housing from multiple construction periods. The median build year of 1996 can be read against 1986, when lead solder in plumbing became federally prohibited - a regulatory line, not a safety line, and individual homes on either side of it can have different plumbing.

1996
Median Year Built
37%
Pre-1986 (lead solder era; lead paint banned 1978)
17%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (17%) 1970–1986 (20%) Post-1986 (63%)

Most homes in Arlington were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Arlington: Remediation Cost in Perspective

The remediation-to-value ratio for Arlington sits at the bottom of the scale.

Median Home Value
$556,900
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Arlington can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 19% above the Washington average.

Protecting Children from Lead in Arlington

37%
Homes Built Before 1986
0.0045
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Arlington

298
Total FEMA Flood Claims
$30,783
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Arlington contains 298 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $30,783. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Deep Dive Reports

Detailed analysis for Arlington, WA

Frequently Asked Questions

What does the Home Safety Score mean for Arlington, WA?
Arlington has an average Home Safety Score of 92/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 17 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Arlington?
EPA records list 17 EPA violations for Arlington water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Arlington water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Arlington is 0.0045 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Arlington compare to Washington average?
Arlington has an average Home Safety Score of 92/100, which is at or above the Washington state average of 86/100 for the same model series.
How many water systems serve Arlington?
Our records map 5 water systems to 1 ZIP code in Arlington. The related population figure in our data is approximately 46,225 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Arlington?
Estimated remediation cost per household in Arlington: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Arlington, WA: 17 Violations - Home Safety 92/100. https://zipcheckup.com/cities/wa/arlington/
BibTeX 
@misc{zipcheckup-cities-wa-arlington,
  author = {{ZipCheckup}},
  title  = {{Arlington, WA: 17 Violations - Home Safety 92/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/arlington/}
}

Page version: October 2026.

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