CITY REPORT OK 14 HEALTH VIOLATIONS

Nardin, OK: 23 Violations - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
Zone 3
Radon Risk (Low)

What You Should Know About Nardin 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: 95% - older plumbing may contain lead solder.
  • CDC health risk index: 15.63 - above typical levels.

Who Supplies Your Water in Nardin

Residential water in Nardin, OK is supplied by 3 separate utilities - not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 3 water systems in the area, with these providers collectively accounting for the dominant share of household connections.

Overview

We track home safety data for 1 ZIP code in Nardin, Oklahoma (population ~263), covering 3 community water systems serving approximately 11,887 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.

Water Sources

Nardin 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
74646 23 14 Blackwell Municipal Authority

All ZIP Codes in Nardin

  • 74646 - 23 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Nardin

11.8%
Asthma (US: 9.8%)
14.1%
Diabetes (US: 10.4%)
18.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.8% ↑
Diabetes 14.1% ↑
Mental Health 18.6% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Nardin Water

Fecal Coliform 16 violations
Microbiological
Haloacetic Acids (HAA5) 14 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Stage 2 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Nardin

1956
Median Build Year
95%
Built Before 1986
56%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 95% 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

Decades of residential development in Nardin took place before the two main regulatory milestones that reduced plumbing-era lead risk: the phase-out of lead pipes before 1970, and the federal ban on lead solder in 1986. With a median build year of 1956, the housing stock here is anchored in that earlier period. The distinction between pre-1970 and 1970-to-1986 construction matters: the oldest homes may have lead pipes in the service line and lead solder in the copper joints, while the 1970-to-1986 tier still carries the solder risk even after lead pipes became less common. Together, these two risk layers affect a majority of the residential properties in the city - a fact the aggregate water quality data doesn't directly reveal.

1956
Median Year Built
95%
Pre-1986 (Lead Paint Risk)
56%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (56%) 1970–1986 (39%) Post-1986 (5%)

Over half of homes in Nardin 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.

Lead Exposure Risk for Children in Nardin

95%
Homes Built Before 1986
0.0064
mg/L Avg Lead (Limit: 0.015)

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.

Households with kids in the home - for whom CDC guidance places particular weight on minimizing exposure - face a specific local picture in Nardin. 95% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

How many water violations does Nardin have?
Nardin water systems have a total of 23 EPA violations, including 14 health-based violations. Violations are tracked across 1 ZIP code.
Does Nardin water have lead?
The average 90th-percentile lead level in Nardin is 0.0064 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Nardin?
Nardin is served by 3 public water systems across 1 ZIP code, serving approximately 263 people.
HomeCitiesOklahoma → Nardin, OK

How to cite this page

APA ZipCheckup. (2026). Nardin, OK: 23 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ok/nardin/
BibTeX
@misc{zipcheckup-cities-ok-nardin,
  author = {{ZipCheckup}},
  title  = {{Nardin, OK: 23 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ok/nardin/}
}

Page version: August 2026.

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