CITY REPORT WA

Sedro Woolley, WA: 3 Violations - Home Safety 99/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Sedro Woolley: A.

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

Sedro Woolley, WA carries a grade in ZipCheckup's upper tier; any health-based violations on record should be checked per water system.

How Sedro Woolley Compares

Sedro Woolley99/100
Washington avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
A · 99
Avg Safety Score
Zone 3
County Radon Potential (Low)
$428K
Median Home Value
$500
Est. Remediation (0.1% of home value)

What You Should Know About Sedro Woolley Water

  • Your city's water systems recorded 3 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0042 mg/L.
  • Homes built before 1986: 52% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.43.

Who Supplies Your Water in Sedro Woolley

Federal records list 5 water systems tied to Sedro Woolley, WA. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Sedro Woolley, Washington (population ~26,970), covering 5 community water systems serving approximately 125,643 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 Sedro Woolley: A (99/100)

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

Sedro Woolley water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0042 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 4 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
98284 A 3 0 Skagit County Pud 1 Judy Res

All ZIP Codes in Sedro Woolley

  • 98284 [A] - 3 violations

Data Sources

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

Health Outcomes in Sedro Woolley

11%
Asthma (US: 9.8%)
10.8%
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% ↑
Diabetes 10.8% ↑
Mental Health 15.8% ↑

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

Top Contaminants in Sedro Woolley Water

Consumer Confidence Rule 4 violations
Reporting
Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

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

Housing & Infrastructure in Sedro Woolley

1985
Median Build Year
52%
Built Before 1986
28%
Built Before 1970
Copper
Likely Pipe Material

With 52% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Viewed through the lens of construction era, Sedro Woolley has a median build year of 1985; houses completed ahead of 1986 can hold lead-bearing solder or fittings.

1985
Median Year Built
52%
Pre-1986 (lead solder era; lead paint banned 1978)
28%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (28%) 1970–1986 (24%) Post-1986 (48%)

Over half of homes in Sedro Woolley were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Sedro Woolley Homeowners

Compared with typical property prices, the remediation estimate for Sedro Woolley is small in percentage terms - at or under one percent.

Median Home Value
$427,900
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Sedro Woolley 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 8% below the Washington average.

Lead Exposure Risk for Children in Sedro Woolley

52%
Homes Built Before 1986
0.0042
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 NFIP Claim Context in Sedro Woolley

416
Total FEMA Flood Claims
$23,404
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Sedro Woolley contains 416 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $23,404. 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 Sedro Woolley, WA

Frequently Asked Questions

What does the Home Safety Score mean for Sedro Woolley, WA?
Sedro Woolley has an average Home Safety Score of 99/100 (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. 3 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 Sedro Woolley?
EPA records list 3 EPA violations for Sedro Woolley water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Sedro Woolley water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Sedro Woolley is 0.0042 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 Sedro Woolley compare to Washington average?
Sedro Woolley has an average Home Safety Score of 99/100, which is at or above the Washington state average of 86/100 for the same model series.
How many water systems serve Sedro Woolley?
Our records map 5 water systems to 1 ZIP code in Sedro Woolley. The related population figure in our data is approximately 26,970 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Sedro Woolley?
Estimated remediation cost per household in Sedro Woolley: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
Home → Cities → Washington → Sedro Woolley, WA

How to cite this page

APA ZipCheckup. (2026). Sedro Woolley, WA: 3 Violations - Home Safety 99/100. https://zipcheckup.com/cities/wa/sedro-woolley/
BibTeX 
@misc{zipcheckup-cities-wa-sedro-woolley,
  author = {{ZipCheckup}},
  title  = {{Sedro Woolley, WA: 3 Violations - Home Safety 99/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/sedro-woolley/}
}

Page version: October 2026.

Get safety alerts for Sedro Woolley, Washington

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found - check filter options Free tool - no phone call required.