Atoka
EPA ID: OK1010401 ยท 2,988 people served ยท 1 ZIP code
ZipCheckup's reading of EPA records for Atoka (OK1010401): 22 health-based violations recorded since 2021. Over the period covered by EPA data, Atoka recorded 23 violations, each listed as resolved; the utility serves 2,988 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Atoka Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Atoka have a median household income of $49,474 and about 10,420 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 57% 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.
๐ Where Does Your Water Come From?
Atoka'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Oklahoma
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
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.
System Overview
Atoka (EPA ID: OK1010401) is a community water system in Oklahoma that serves approximately 2,988 people from surface water sources.
This system serves ZIP code 74525 in Atoka.
Violation History
Status breakdown for accepted records with record years 2021-2026: 8 resolved, 15 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 |
|---|---|---|---|
| October 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| October 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| July 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| July 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| April 1, 2025 | CARBON, TOTAL | Health-based | Archived |
| January 1, 2025 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| October 1, 2024 | Surface Water Treatment Rule | Health-based | Resolved |
| August 1, 2024 | CARBON, TOTAL | Non-health-based | Resolved |
| October 1, 2023 | Total Haloacetic Acids (HAA5) | Health-based | Archived |
| October 1, 2023 | CARBON, TOTAL | Health-based | Archived |
| July 1, 2023 | CARBON, TOTAL | Health-based | Archived |
| April 1, 2023 | CARBON, TOTAL | Health-based | Archived |
| March 1, 2023 | Interim Enhanced Surface Water Treatment Rule | Health-based | Resolved |
| February 1, 2023 | Interim Enhanced Surface Water Treatment Rule | Health-based | Resolved |
| January 1, 2023 | Interim Enhanced Surface Water Treatment Rule | Health-based | Resolved |
| January 1, 2023 | CARBON, TOTAL | Health-based | Archived |
| December 1, 2022 | Interim Enhanced Surface Water Treatment Rule | Health-based | Resolved |
| December 1, 2022 | 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 |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL Violation | 8 | Yes |
| CARBON, TOTAL | Treatment Technique | 7 | Yes |
| Interim Enhanced Surface Water Treatment Rule | Treatment Technique | 5 | Yes |
| Surface Water Treatment Rule | Treatment Technique | 2 | Yes |
| CARBON, TOTAL | Treatment Technique | 1 | No |
Health Risk Details
Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)
Long-term exposure is associated with increased cancer risk, including bladder cancer; possible reproductive effects At-risk groups: pregnant women, long-term consumers of chlorinated water.
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter โ
Chlorite (EPA limit: 1 mg/L)
Anemia and nervous system effects in infants and children At-risk groups: infants, developing fetuses.
Treatment options (verify a product is certified to reduce this contaminant): ferrous sulfate reduction (treatment plants), activated carbon, reverse osmosis. Find the right filter โ
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 |
|---|---|---|
| 0.0013 mg/L | No | 2023-12-31 |
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.
- 74525 - Atoka
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Atoka (OK1010401) on EPA.gov.
Frequently Asked Questions
Is Atoka water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Atoka; its 23 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Atoka serve?
Atoka serves approximately 2,988 people across 1 ZIP code in Oklahoma.
Where does Atoka get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Atoka (OK): 22 Health Violations. https://zipcheckup.com/water-system/ok1010401/
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author = {{ZipCheckup}},
title = {{Atoka (OK): 22 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ok1010401/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Atoka (EPA ID: OK1010401) - request the latest Consumer Confidence Report or ask about specific contaminants.