Current Noncompliance OK 16 HEALTH-BASED VIOLATIONS ON RECORD

Davenport Utility Authority

EPA ID: OK3004104 ยท 881 people served ยท 3 ZIP codes

ZipCheckup's reading of EPA records for Davenport Utility Authority (OK3004104): 2 violations recorded with unresolved status in the SDWIS data used. In the federal compliance data used here, Davenport Utility Authority has 2 violations listed as open; the utility serves approximately 881 people.

Data: EPA SDWIS

881
People Served
3
ZIP Codes Served
27
Violations (since 2021)
Surface Water
Water Source
0.0036 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 3
County Radon Potential ยท Low
4
Contaminants Flagged
$162K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Davenport Utility Authority Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$59,436
Median Household Income
13,031
Population of ZIP Codes Served (Census)
100%
Disadvantaged Population
70th
Poverty Percentile
70th
Energy Burden Percentile
61%
Pre-1986 Housing

The ZIP codes associated with Davenport Utility Authority have a median household income of $59,436 and about 13,031 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 61% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 100% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐ŸŒŠ Where Does Your Water Come From?

Surface Water

Davenport Utility Authority's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.

Elevated Risk
Source Contamination Risk
20th
Wastewater Discharge Proximity
30th
Superfund Site Proximity

Infrastructure Risk

48 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
22 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 69% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Oklahoma

West Siloam Springs
877 people
19 violations
0 violations
8 violations
6 violations
4 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Water Filtration
Water Filtration $600
Total Estimated Cost $600

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Property Value Decline $8,115

5% of median home value (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$11,560
10 years
$23,120
20 years
$46,240

Compare: Estimated remediation cost is $600 (one-time) vs. $23,120 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Davenport Utility Authority (EPA ID: OK3004104) is a community water system in Oklahoma that serves approximately 881 people from surface water sources.

This system provides water to 3 ZIP codes across 3 communities.

Violation History

2 current noncompliance records in the accepted 2026Q2 snapshot; none are classified as health-based in this evidence.

Status breakdown for accepted records with record years 2021-2026: 17 resolved, 8 archived, 0 addressed, and 2 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
December 30, 2025 TTHM Non-health-based Resolved
September 29, 2025 TTHM Non-health-based Resolved
July 1, 2025 TTHM Health-based Archived
July 1, 2025 TTHM Health-based Archived
June 30, 2025 TTHM Non-health-based Resolved
April 1, 2025 TTHM Non-health-based Resolved
April 1, 2025 TTHM Health-based Archived
April 1, 2025 TTHM Health-based Archived
January 1, 2025 TTHM Health-based Archived
January 1, 2025 TTHM Health-based Archived
October 1, 2024 TTHM Health-based Archived
October 1, 2024 TTHM Health-based Archived
September 29, 2023 TTHM Non-health-based Unaddressed (current)
September 1, 2023 TTHM Non-health-based Resolved
September 1, 2023 Total Haloacetic Acids (HAA5) Non-health-based Resolved
July 1, 2023 TTHM Health-based Resolved
July 1, 2023 TTHM Health-based Resolved
June 30, 2023 TTHM Non-health-based Resolved
April 1, 2023 TTHM Health-based Resolved
April 1, 2023 TTHM Health-based Resolved

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
TTHM MCL Violation, Monitoring & Reporting 24 Yes
Total Haloacetic Acids (HAA5) Monitoring & Reporting 1 No
Stage 1 DBP Rule Treatment Technique 1 No
Surface Water Treatment Rule Treatment Technique 1 No

Health Risk Details

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Increased risk of cancer

Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter โ†’

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.0036 mg/L No 2025-12-31

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

3 of 3 ZIP records with known zones are 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.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OK or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Davenport Utility Authority (OK3004104) on EPA.gov.

Frequently Asked Questions

Is Davenport Utility Authority water safe to drink?

The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.

How many people does Davenport Utility Authority serve?

Davenport Utility Authority serves approximately 881 people across 3 ZIP codes in Oklahoma.

Where does Davenport Utility Authority get its water?

The primary water source is surface water.

Frequently Asked Questions

Should I use a water filter? ▼
Given 27 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Davenport Utility Authority serve? ▼
Davenport Utility Authority serves approximately 881 people with drinking water across 3 ZIP codes.
What is Davenport Utility Authority's water source? ▼
Davenport Utility Authority draws water from surface water sources. Source type affects which contaminants are most likely to be present.
Is there lead in Davenport Utility Authority's water? ▼
The most recent 90th-percentile lead result on record is 0.0036 mg/L (sample period ending 2025-12-31). This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Davenport Utility Authority? ▼
The ZIP codes mapped to Davenport Utility Authority have a median household income of $59,436 (Census ZIP-code estimate). In CEJST data, 100% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does Davenport Utility Authority get its water? ▼
Davenport Utility Authority's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap. The available violation history and environmental indicators place this system in the elevated review category; they do not measure current source contamination.

How to cite this page

APA ZipCheckup. (n.d.). Davenport Utility Authority (OK): 16 Health Violations. https://zipcheckup.com/water-system/ok3004104/
BibTeX
@misc{zipcheckup-water-system-ok3004104,
  author = {{ZipCheckup}},
  title  = {{Davenport Utility Authority (OK): 16 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok3004104/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Davenport Utility Authority (EPA ID: OK3004104) - request the latest Consumer Confidence Report or ask about specific contaminants.

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