CITY REPORT OK HEALTH VIOLATIONS: 3

Marshall, OK: 5 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$51K
Median Home Value
$600
Est. Remediation (1.2% of home value)

What You Should Know About Marshall Water

  • Your city's water systems recorded 5 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.002 mg/L.
  • Homes built before 1986: 65% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.96.

Who Supplies Your Water in Marshall

2 systems shown for Marshall, OK, from 2 on the federal list.

Overview

We track home safety data for 1 ZIP code in Marshall, Oklahoma (population ~511), covering 2 community water systems serving approximately 3,598 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. 3 health-based violations appear in the available health breakdown.

Water Sources

Marshall water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0020 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

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Nitrate-Nitrite Inorganic 6 1
Lead and Copper Rule Revisions Treatment Technique 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
73056 — 5 3 Logan Company Rws & Swmd #3

All ZIP Codes in Marshall

  • 73056 - 5 violations ⚠

Data Sources

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

Health Outcomes in Marshall

11.2%
Asthma (US: 9.8%)
12%
Diabetes (US: 10.4%)
16.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11.2% ↑
Diabetes 12% ↑
Mental Health 16.9% ↑

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Marshall Water

Nitrate-Nitrite 6 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Lead and Copper Rule Revisions 4 violations
Treatment Technique

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

Housing & Infrastructure in Marshall

1974
Median Build Year
65%
Built Before 1986
36%
Built Before 1970
Copper
Likely Pipe Material

With 65% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Viewed through the lens of construction era, Marshall has a median build year of 1974; houses completed ahead of 1986 can hold lead-bearing solder or fittings.

1974
Median Year Built
65%
Pre-1986 (lead solder era; lead paint banned 1978)
36%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (36%) 1970–1986 (29%) Post-1986 (35%)

Over half of homes in Marshall were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. 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 Marshall Homeowners

The cost-to-value ratio for Marshall is moderate by this page's scale.

Median Home Value
$50,500
Est. Remediation
$600
Remediation as % of home value 1.2%

Estimated remediation costs in Marshall can be compared with local home values. The estimated $300–$1,500 range is a planning estimate; get a property-specific quote and check it against your budget. Home values are 65% below the Oklahoma average.

Lead Exposure Risk for Children in Marshall

65%
Homes Built Before 1986
0.002
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Frequently Asked Questions

How many violations are on record for water systems serving Marshall?
EPA records list 5 EPA violations, including 3 health-based violations for Marshall water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Marshall water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Marshall is 0.002 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Marshall?
Our records map 2 water systems to 1 ZIP code in Marshall. The related population figure in our data is approximately 511 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Marshall?
Estimated remediation cost per household in Marshall: $600; modeled range $300 to $1,500. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Marshall, OK: 5 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ok/marshall/
BibTeX
@misc{zipcheckup-cities-ok-marshall,
  author = {{ZipCheckup}},
  title  = {{Marshall, OK: 5 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ok/marshall/}
}

Page version: October 2026.

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