Washington, OK: Lead Above EPA Action Level - Home Safety 83/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Washington: B.
This ZIP has a few items worth a quick check.
Washington, OK scores in the upper band of the ZipCheckup grade.
How Washington Compares
Data: EPA SDWIS
Key Facts for Washington Residents
- Your city's water systems recorded 56 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0225 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Homes built before 1986: 42% - older plumbing may contain lead solder.
- Estimated remediation: $3,620 per household.
- Health risk index (ZipCheckup composite of CDC data): 13.56.
Washington's Water Providers
3 systems shown for Washington, OK, from 5 on the federal list.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Washington, Oklahoma (population ~3,817), covering 5 community water systems serving approximately 17,666 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. 4 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Washington: B (83/100)
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
Washington water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0225 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 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 |
|---|---|---|---|
| Simazine | Organic | 8 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 8 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 1 |
| Lead and Copper Rule Revisions | Treatment Technique | 8 | 1 |
| Chlorine | Disinfectant | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 73093 | B | 56 | 4 | Goldsby Water Authority Trust |
All ZIP Codes in Washington
- 73093 [B] - 56 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Washington Community Health Snapshot
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
Vertical line = national average. ■ Above national · ■ Below national
What's in Washington's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Washington Infrastructure Age
With 42% 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
Washington's housing spans eras before and after 1986; its median build year is 1980.
Most homes in Washington 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.
How Remediation Costs Compare in Washington
Estimated remediation in Washington takes up a moderate slice of home value on a scale that runs from low (1% or less) to elevated (above 2%).
Estimated remediation costs in Washington can be compared with local home values. The estimated $2,280–$5,660 range is a planning estimate; get a property-specific quote and check it against your budget. Home values are 93% above the Oklahoma average.
Washington: Lead Risk & Vulnerable Populations
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.
Over 15 micrograms per liter: the mean of Washington's ZIP-level lead results. Older-than-1986 homes make up 42% of the stock.
1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Washington: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Washington contains 5 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,383. 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 $3,620 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 Washington, OK