ZipCheckup grade for 73051: A.

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

Health Violations Found
A 85

Lexington, OK (73051): 2 Health-Based Violations Recorded for Mapped Water Systems - 85/100

EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: Lexington)

Health Violations Found PFAS Detected

Health-based violation records by water system:

EPA records for the water systems mapped to 73051 in Lexington, OK contain 25 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 2 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
A 85/100
Water Quality Issues 2 health-based violation records
Lead Risk Moderate 0.0065 mg/L, 90th percentile, sample period ending 2026-12-31
NFIP Claim History Claim records 42 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 2 health-based violations and 23 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0065 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
  • Flood 42 cumulative NFIP claim records. Check the current FEMA map for a specific address.
Contaminant Summary
Health Violations
25 violations 2 health-based PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
A
ZIP-level Home Safety model score: 85 / 100
Home Safety Score higher than 79% of ZIP codes nationwide
4
Water Systems
2,086
People Served
2
Health Violations (since 2021)Median is 0
Groundwater
Water Source
0.0065 mg/L
Reported Lead Result2.8× the national median for this measure
Zone 3
County Radon Potential · Low
$153K
Median Home Value19% above state median ($129K)

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Score Breakdown

Overall Home Safety Score: 85/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
12/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
100/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
56/100
Indoor environment
100/100
Outdoor environment
100/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) CRITICAL

Your Water System

ZIP code 73051 in Lexington, Oklahoma is mapped to the water system Lexington (EPA ID: OK2001409). This system provides water to approximately 2,086 people from groundwater sources.

There are 4 community water systems serving this area.

Lead & Copper in Your Water

The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.

Metal Measured Level EPA Action Level Status Sample Date or Period
Copper Action-level exceedance on record 1.3 mg/L Exceeds action level Not present in ZipCheckup accepted source data
How to read the copper row. EPA's reporting schema defines the copper CU90 code as an action-level exceedance (a system's 90th-percentile copper above the 1.3 mg/L action level), so this row reflects an exceedance on record, not a routine measurement. No copper concentration is shown because no verified unit is available for this value. A system with no copper record has not been shown to be clean: the absence of a recorded exceedance is not a measurement.

Water Systems Serving This Area

System Name EPA ID Population Source
Lexington OK2001409 2,086 Groundwater
Noble Utilities Authority OK2001411 5,750 Groundwater
Purcell OK2004701 6,693 Groundwater
Noble Estates Mhp OK2001431 75 Groundwater

Other Water Quality Reports in Oklahoma

Nearby Water Quality Reports

  • 73068 (Noble) - 8 mi - 74 violations recorded for mapped water systems
  • 73095 (Wayne) - 9 mi - 22 violations recorded for mapped water systems
  • 73080 (Purcell) - 10 mi - 74 violations recorded for mapped water systems
  • 74878 (Wanette) - 13 mi - 26 violations recorded for mapped water systems
  • 73070 (Norman) - 13 mi - 3 violations recorded for mapped water systems
  • 74831 (Byars) - 14 mi - 15 violations recorded for mapped water systems
  • 73026 (Norman) - 14 mi - 66 violations recorded for mapped water systems
  • 74852 (Macomb) - 14 mi - 44 violations recorded for mapped water systems
  • 73093 (Washington) - 14 mi - 56 violations recorded for mapped water systems
  • 73074 (Paoli) - 14 mi - 26 violations recorded for mapped water systems

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lexington (OK2001409) on EPA.gov.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 73051.

Detected compounds: PFHxS.

Highest measured level: 0.0071 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) OK
Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Lexington

Based on local data for ZIP 73051, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Lexington has 42 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 73051 was built around 1982. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Lexington is 1982; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Roofing Inspection & Repair

Active weather alerts in Oklahoma increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 73051 safe to drink?

EPA SDWIS records 25 violations since 2021 across the water systems mapped to ZIP 73051 (primary system: Lexington), including 2 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 73051's water come from?

The recorded water source for Lexington, a system mapped to ZIP code 73051, is Groundwater. This system serves approximately 2,086 people.

How does Lexington water compare to the national average?

Lexington's Home Safety Score ranks better than 79% of U.S. ZIP codes, and lower than 56% of ZIP codes within Oklahoma.

How can I get my water tested in Lexington?

If Lexington supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 73051 tap water?

The Lead and Copper Rule record selected for 73051 reports a 90th-percentile lead result of 0.0065 mg/L for a water system mapped to this ZIP (record date 2026-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 73051?

73051 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Cleveland County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 73051's water?

Yes, PFAS have been detected in samples from water systems mapped to 73051. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 73051?

FEMA records contain 42 flood insurance claims filed in ZIP code 73051; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Lexington, OK (73051): 2 Health-Based Violations Recorded for Mapped Water Systems - 85/100. https://zipcheckup.com/report/73051/
BibTeX 
@misc{zipcheckup-report-73051,
  author = {{ZipCheckup}},
  title  = {{Lexington, OK (73051): 2 Health-Based Violations Recorded for Mapped Water Systems - 85/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/73051/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 73051

ZIP Code City, State Distance Grade Violations
73068 Noble, OK 8.5 mi B 74
73095 Wayne, OK 9.3 mi N/A 22
73080 Purcell, OK 9.5 mi B 74
74878 Wanette, OK 12.7 mi N/A 26
73070 Norman, OK 12.9 mi A 3
74831 Byars, OK 13.7 mi A 15
73026 Norman, OK 13.7 mi B 66
74852 Macomb, OK 14.0 mi N/A 44
73093 Washington, OK 14.4 mi B 56
73074 Paoli, OK 14.5 mi N/A 26

Contaminants Detected in 73051

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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2026 Rankings

ZIP 73051 scores in the top tier nationally.

Coverage: 14/17 risk factors Data sources →
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