Norman, OK: PFAS Found in Water - Home Safety 89/100
6 ZIP codes · 7 water systems · Updated
ZipCheckup grade for Norman: A.
No federal data flags a major home-safety concern for this ZIP.
In current OK EPA data, Norman's tap water sits in the high-safety tier.
How Norman Compares
Data: EPA SDWIS
Water Quality Map: Norman, OK
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Norman score across all safety grades.
What You Should Know About Norman Water
- Your city's water systems recorded 150 violations in the past 5 years.
- Average lead level: 0.0042 mg/L.
- Homes built before 1986: 48% - older plumbing may contain lead solder.
- Estimated remediation: $2,117 per household.
- CDC health risk index: 12.44 - above typical levels.
Who Supplies Your Water in Norman
Norman, OK is covered by 3 major water utilities out of 7 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.
- A
- B
- B
Overview
We track home safety data for 6 ZIP codes in Norman, Oklahoma (population ~133,176), covering 7 community water systems serving approximately 819,886 people region-wide. The EPA snapshots used for this build directly map water systems to 6 of 6 ZIP codes.
6 of 6 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 12 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Norman: A (89/100)
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
Norman water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0042 mg/L (EPA action level: 0.015 mg/L)
- 1 of 6 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 6 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 44 | 2 |
| Stage 2 DBP Rule | Treatment Technique | 26 | 6 |
| Barium | Inorganic | 12 | 3 |
| Atrazine | Organic | 11 | 6 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 73072 | B | 87 | 9 | Norman Utilities Authority |
| 73026 | B | 66 | 4 | Norman Utilities Authority |
| 73069 | A | 62 | 5 | Norman Utilities Authority |
| 73071 | A | 62 | 5 | Norman Utilities Authority |
| 73019 | A | 3 | 1 | Norman Utilities Authority |
| 73070 | A | 3 | 1 | Norman Utilities Authority |
All ZIP Codes in Norman
- 73019 [A] - 3 violations ⚠
- 73026 [B] - 66 violations ⚠
- 73069 [A] - 62 violations ⚠
- 73070 [A] - 3 violations ⚠
- 73071 [A] - 62 violations ⚠
- 73072 [B] - 87 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 Norman
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 Norman Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Norman
With 48% 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 residential housing tracks directly to construction era: pre-1986 homes may have lead-soldered copper joints; pre-1970 homes may have lead pipes outright. Norman's median build year of 1993 places the city in a moderate risk zone where neither era dominates the housing inventory. Understanding which side of the 1986 threshold a specific property falls on - and whether it predates 1970 - is the most actionable starting point for a homeowner trying to assess their own tap water exposure.
Most homes in Norman were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Norman Homeowners
Equity impact data for Norman lands in the favorable tier - remediation claims a small slice of what properties here are worth.
Remediation costs in Norman are relatively low compared to home values. The $1,283–$3,783 estimated range is a small fraction of median property value. Home values are 84% above the Oklahoma average.
Lead Exposure Risk for Children in Norman
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.
Routinely in Norman, where 48% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
<strong>1 ZIP code</strong> (17% of the city) exceeds the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Norman
Historical NFIP data for Norman contains 197 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $24,137. Among ZIP codes with claim records, 40% 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>$2,117</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 Norman, OK