St Thomas Water Association
EPA ID: MS0250024 · 500 people served · 1 ZIP code
ZipCheckup's reading of EPA records for St Thomas Water Association (MS0250024): 3 health-based violations recorded since 2021. Per the federal file, all 7 violations logged for St Thomas Water Association carry a resolved status, and around 500 people get water from this system.
Data: EPA SDWIS
Service Area Map
Coverage area for St Thomas Water Association Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with St Thomas Water Association have a median household income of $41,563 and about 3,568 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 52% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 61% 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.
💧 Where Does Your Water Come From?
St Thomas Water Association's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Mississippi
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
St Thomas Water Association (EPA ID: MS0250024) is a community water system in Mississippi that serves approximately 500 people from groundwater sources.
This system serves ZIP code 39041 in Bolton.
Violation History
Status breakdown for accepted records with record years 2021-2026: 7 resolved, 0 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 |
|---|---|---|---|
| April 1, 2025 | TTHM | Non-health-based | Resolved |
| April 1, 2025 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| June 4, 2023 | Public Notice | Non-health-based | Resolved |
| January 1, 2023 | TTHM | Health-based | Resolved |
| December 13, 2022 | Public Notice | Non-health-based | Resolved |
| October 1, 2022 | TTHM | Health-based | Resolved |
| July 1, 2022 | 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 | 4 | Yes |
| Public Notice | Other (notice or report rule) | 2 | No |
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 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 →
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0008 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.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 MS or modeled from parcel and building-footprint data.
- 39041 - Bolton
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for St Thomas Water Association (MS0250024) on EPA.gov.
Frequently Asked Questions
Is St Thomas Water Association water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for St Thomas Water Association; its 7 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does St Thomas Water Association serve?
St Thomas Water Association serves approximately 500 people across 1 ZIP code in Mississippi.
Where does St Thomas Water Association get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). St Thomas Water Association (MS): 3 Health Violations. https://zipcheckup.com/water-system/ms0250024/
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author = {{ZipCheckup}},
title = {{St Thomas Water Association (MS): 3 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ms0250024/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
St Thomas Water Association (EPA ID: MS0250024) - request the latest Consumer Confidence Report or ask about specific contaminants.