CITY REPORT OK HEALTH VIOLATIONS: 49

Dewar, OK: 55 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)
$85K
Median Home Value
$600
Est. Remediation (0.7% of home value)

What You Should Know About Dewar Water

  • Your city's water systems recorded 55 violations since 2021.
  • Homes built before 1986: 63% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 16.33.

Who Supplies Your Water in Dewar

When a city is linked to 2 water systems, as Dewar, OK is in federal records, water in one neighborhood may come from a different system than in another. The 2 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.

Overview

We track home safety data for 1 ZIP code in Dewar, Oklahoma (population ~869), covering 2 community water systems serving approximately 3,803 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. 49 health-based violations appear in the available health breakdown.

Water Sources

Dewar water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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
Total Trihalomethanes (TTHM) Disinfection Byproducts 56 1
Haloacetic Acids (HAA5) Disinfection Byproducts 38 1
Lead and Copper Rule Revisions Treatment Technique 8 1
Consumer Confidence Rule Reporting 4 1
Chloramine Disinfectant 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
74431 — 55 49 Okmulgee Company Rwd #1

All ZIP Codes in Dewar

  • 74431 - 55 violations ⚠

Data Sources

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

Health Outcomes in Dewar

12.7%
Asthma (US: 9.8%)
15.4%
Diabetes (US: 10.4%)
19.5%
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 12.7% ↑
Diabetes 15.4% ↑
Mental Health 19.5% ↑

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

Top Contaminants in Dewar Water

Total Trihalomethanes (TTHM) 56 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL
Haloacetic Acids (HAA5) 38 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Lead and Copper Rule Revisions 8 violations
Treatment Technique

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

Housing & Infrastructure in Dewar

1975
Median Build Year
63%
Built Before 1986
42%
Built Before 1970
Copper
Likely Pipe Material

With 63% 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

By Census estimates, roughly half or more of the homes in Dewar were built before 1986; the median build year is 1975.

1975
Median Year Built
63%
Pre-1986 (lead solder era; lead paint banned 1978)
42%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (42%) 1970–1986 (21%) Post-1986 (37%)

Over half of homes in Dewar 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 Dewar Homeowners

Measured against the median home value, the estimated cost of fixing the issues flagged for Dewar lands in the lowest of the three tiers this page uses.

Median Home Value
$85,200
Est. Remediation
$600
Remediation as % of home value 0.7%

Estimated remediation costs in Dewar can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 41% below the Oklahoma average.

Lead Exposure Risk for Children in Dewar

63%
Homes Built Before 1986

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.

Historical NFIP Claim Context in Dewar

6
Total FEMA Flood Claims
$19,729
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Dewar contains 6 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $19,729. 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 $600 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.

Frequently Asked Questions

How many violations are on record for water systems serving Dewar?
EPA records list 55 EPA violations, including 49 health-based violations for Dewar water systems. These water-system violations are shown for 1 mapped ZIP code.
How many water systems serve Dewar?
Our records map 2 water systems to 1 ZIP code in Dewar. The related population figure in our data is approximately 869 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Dewar?
Estimated remediation cost per household in Dewar: $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). Dewar, OK: 55 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/ok/dewar/
BibTeX
@misc{zipcheckup-cities-ok-dewar,
  author = {{ZipCheckup}},
  title  = {{Dewar, OK: 55 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ok/dewar/}
}

Page version: October 2026.

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