Spavinaw, OK Water Safety: 83/100 (2026)
1 ZIP code · 9 water systems · Updated 2026-06-03
The water systems supplying Spavinaw show a track record of above-average compliance with federal standards — consistently among the better performers in OK.
How Spavinaw Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Spavinaw Water
- Average lead level: 0.0011 mg/L.
- Homes built before 1986: 62% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 16.01 — above typical levels.
Who Supplies Your Water in Spavinaw
Multiple utilities divide Spavinaw, OK's water service — 3 leading providers among 9 on the federal register.
Overview
We track water quality and home safety data for 1 ZIP code in Spavinaw, Oklahoma (population ~1,319), covering 9 community water systems serving approximately 18,692 people region-wide.
No EPA violations recorded across any ZIP codes in Spavinaw — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Spavinaw: B (83/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Spavinaw water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0011 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 74366 | B | Ketchum Pwa | 4,025 |
All ZIP Codes in Spavinaw
- 74366 [B]
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
Updated daily.
Health Outcomes in Spavinaw
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Spavinaw
With 62% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
The character of Spavinaw's housing stock is one of deep historical layering — a median build year of 1973 signals a city built largely before the plumbing era changes of 1986 and 1970. Lead-soldered copper joints and, in the oldest properties, lead service lines are commonly present in this inventory. That context shapes what individual water testing may reveal, particularly in neighborhoods where the oldest housing is concentrated.
Over half of homes in Spavinaw were built before 1986, when lead solder was banned. 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 Spavinaw Homeowners
At current valuations, Spavinaw sits in the low remediation-share tier — the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Spavinaw are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 27% below the Oklahoma average.
Lead Exposure Risk for Children in Spavinaw
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
62% — that captures the slice of Spavinaw housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Spavinaw, OK