Historical Compliance Records OK 14 HEALTH-BASED VIOLATIONS ON RECORD

Tishomingo Municipal Authority

EPA ID: OK1010815 ยท 3,000 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for Tishomingo Municipal Authority (OK1010815): 14 health-based violations recorded since 2021. 22 violations on file at Tishomingo Municipal Authority, none open; 3,000 people served.

Data: EPA SDWIS

3,000
People Served
1
ZIP Code Served
22
Violations (since 2021)
Surface Water
Water Source
0.0009 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 3
County Radon Potential ยท Low
8
Contaminants Flagged
$142K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Tishomingo Municipal Authority Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$45,365
Median Household Income
4,355
Population of ZIP Codes Served (Census)
100%
Disadvantaged Population
80th
Poverty Percentile
80th
Energy Burden Percentile
64%
Pre-1986 Housing

The ZIP codes associated with Tishomingo Municipal Authority have a median household income of $45,365 and about 4,355 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 64% 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

Tishomingo Municipal 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
0th
Superfund Site Proximity

Infrastructure Risk

54 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
16 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 77% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Oklahoma

0 violations
60 violations
Cotton Company Rwd #2
3,000 people
A 2 violations
A 13 violations
25 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 $7,120

5% of median home value (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$11,060
10 years
$22,120
20 years
$44,240

Compare: Estimated remediation cost is $600 (one-time) vs. $22,120 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

Tishomingo Municipal Authority (EPA ID: OK1010815) is a community water system in Oklahoma that serves approximately 3,000 people from surface water sources.

This system serves ZIP code 73460 in Tishomingo.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 22 records in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 17 resolved, 5 archived, 0 addressed, and 0 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
November 1, 2025 Chlorine Non-health-based Resolved
November 1, 2025 Revised Total Coliform Rule Non-health-based Resolved
July 1, 2025 Consumer Confidence Rule Non-health-based Resolved
June 1, 2025 Interim Enhanced Surface Water Treatment Rule Non-health-based Resolved
March 1, 2025 Long Term 2 Enhanced Surface Water Treatment Rule Health-based Archived
January 1, 2025 Lead and Copper Rule Non-health-based Resolved
January 1, 2025 Long Term 2 Enhanced Surface Water Treatment Rule Health-based Archived
January 1, 2025 Surface Water Treatment Rule Health-based Archived
January 1, 2025 Surface Water Treatment Rule Health-based Archived
November 1, 2024 Long Term 2 Enhanced Surface Water Treatment Rule Health-based Archived
July 1, 2024 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
June 1, 2024 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
June 1, 2024 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
June 1, 2024 Surface Water Treatment Rule Health-based Resolved
April 1, 2022 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
March 1, 2022 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
November 1, 2021 Revised Total Coliform Rule Non-health-based Resolved
October 1, 2021 Chlorine Non-health-based Resolved
March 1, 2021 Interim Enhanced Surface Water Treatment Rule Health-based Resolved
March 1, 2021 Interim Enhanced Surface Water Treatment Rule Health-based Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
Interim Enhanced Surface Water Treatment Rule Treatment Technique, Monitoring & Reporting 9 Yes
Consumer Confidence Rule Treatment Technique 3 Yes
Long Term 2 Enhanced Surface Water Treatment Rule Other Violation 3 Yes
Chlorine Monitoring & Reporting 2 No
Chlorine Monitoring & Reporting 2 No
Uranium Radionuclides 1 No
Lead and Copper Rule Monitoring & Reporting 1 No
Consumer Confidence Rule Other (notice or report rule) 1 No

Health Risk Details

E. coli (EPA limit: MCLG of zero; positive samples require repeat testing under the Revised Total Coliform Rule)

Some E. coli strains can cause severe GI illness and kidney failure, especially in children At-risk groups: children under 5, elderly, immunocompromised individuals, pregnant women.

Treatment options (verify a product is certified to reduce this contaminant): UV disinfection, chlorination, 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
0.0009 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

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.

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 Tishomingo Municipal Authority (OK1010815) on EPA.gov.

Frequently Asked Questions

Is Tishomingo Municipal Authority water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Tishomingo Municipal Authority; its 22 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Tishomingo Municipal Authority serve?

Tishomingo Municipal Authority serves approximately 3,000 people across 1 ZIP code in Oklahoma.

Where does Tishomingo Municipal Authority get its water?

The primary water source is surface water.

Frequently Asked Questions

Should I use a water filter? ▼
Given 22 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 Tishomingo Municipal Authority serve? ▼
Tishomingo Municipal Authority serves approximately 3,000 people with drinking water across 1 ZIP code.
What is Tishomingo Municipal Authority's water source? ▼
Tishomingo Municipal Authority draws water from surface water sources. Source type affects which contaminants are most likely to be present.
Is there lead in Tishomingo Municipal Authority's water? ▼
The most recent 90th-percentile lead result on record is 0.0009 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 Tishomingo Municipal Authority? ▼
The ZIP codes mapped to Tishomingo Municipal Authority have a median household income of $45,365 (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 Tishomingo Municipal Authority get its water? ▼
Tishomingo Municipal 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.). Tishomingo Municipal Authority (OK): 14 Health Violations. https://zipcheckup.com/water-system/ok1010815/
BibTeX
@misc{zipcheckup-water-system-ok1010815,
  author = {{ZipCheckup}},
  title  = {{Tishomingo Municipal Authority (OK): 14 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ok1010815/}
}

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

Tishomingo Municipal Authority (EPA ID: OK1010815) - request the latest Consumer Confidence Report or ask about specific contaminants.

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