Blackwell, OK: 14 Health Violations - Home Safety 87/100
1 ZIP code · 4 water systems · Updated
ZipCheckup grade for Blackwell: A.
No federal data flags a major home-safety concern for this ZIP.
Public water monitoring in Blackwell shows a safety record well above the OK median - health-based violations are isolated exceptions rather than recurring patterns, the city's systems have stayed compliant across recent reporting cycles, and no cluster of recurring exceedances appears in any single service area.
How Blackwell Compares
Data: EPA SDWIS
What You Should Know About Blackwell Water
- Your city's water systems recorded 23 violations in the past 5 years.
- Average lead level: 0.0064 mg/L.
- Homes built before 1986: 88% - older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 15.63 - above typical levels.
Who Supplies Your Water in Blackwell
With 3 utilities splitting service in Blackwell, OK, water accountability is distributed across 4 systems on the federal record.
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Overview
We track home safety data for 1 ZIP code in Blackwell, Oklahoma (population ~6,795), covering 4 community water systems serving approximately 13,112 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. 14 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Blackwell: A (87/100)
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
Blackwell water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0064 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
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Fecal Coliform | Microbiological | 16 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 14 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Contaminant 1008 | Other | 2 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 74631 | A | 23 | 14 | Blackwell Municipal Authority |
All ZIP Codes in Blackwell
- 74631 [A] - 23 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.
Health Outcomes in Blackwell
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
Top Contaminants in Blackwell Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Blackwell
With 88% 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
Plumbing risk in older housing is defined by two eras: the pre-1970 period when lead pipes were commonly used for service lines, and the 1970-to-1986 period when lead solder remained standard in copper plumbing until the federal ban. Blackwell's median build year of 1955 lands in a range where both eras are heavily represented in the housing stock. That creates an elevated aggregate environment for plumbing-related lead exposure - one that city-level water quality averages don't capture, because the risk sits inside individual properties rather than in the distribution system.
Over half of homes in Blackwell 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 Blackwell Homeowners
Given current Blackwell property values, the remediation-to-equity ratio falls in the elevated tier - deliberate financial planning is a meaningful factor in how homeowners approach the documented water and safety issues on record here.
At 2.3% of home value, remediation costs in Blackwell represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,100–$3,300. Home values here are 47% below the Oklahoma average.
Lead Exposure Risk for Children in Blackwell
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.
In recent monitoring under the Lead and Copper Rule, citywide samples for Blackwell have approached or crossed the regulatory action level on multiple occasions. Combined with 88% of stock dating from the pre-rule era, the picture supports baseline single-tap reads as a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Blackwell
Historical NFIP data for Blackwell contains 159 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,507. 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 <strong>$1,800</strong> 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 Blackwell, OK