Historical Compliance Records MS

Old Union Water System

EPA ID: MS0410033 ยท 3,749 people served ยท 3 ZIP codes

ZipCheckup's reading of EPA records for Old Union Water System (MS0410033): 16 violations on record since 2021. Within the EPA violation records on file, Old Union Water System accumulated 16 violations, and every finding is recorded as resolved; the utility supplies water to approximately 3,749 people. Resolution of past violations is not a statement about current water quality.

Data: EPA SDWIS

C ยท 68
Avg Safety Score
3,749
People Served
3
ZIP Codes Served
16
Violations (since 2021)
Groundwater
Water Source
0.0007 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 2
County Radon Potential ยท Moderate
7
Contaminants Flagged
$139K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Old Union Water System Source: EPA SDWIS service area boundaries.

Service area boundary - average Home Safety grade of mapped ZIPs: C

Demographics of ZIP Codes Served

$52,985
Median Household Income
40,830
Population of ZIP Codes Served (Census)
48%
Disadvantaged Population
67th
Poverty Percentile
67th
Energy Burden Percentile
54%
Pre-1986 Housing

The ZIP codes associated with Old Union Water System have a median household income of $52,985 and about 40,830 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 54% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 48% 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.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Old Union Water System'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.

Moderate Risk
Source Contamination Risk
33th
Wastewater Discharge Proximity
10th
Superfund Site Proximity

Infrastructure Risk

46 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
24 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 66% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Mississippi

A 0 violations
1 violation
4 violations
City of Houston
3,772 people
5 violations
0 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Water Filtration
Water Filtration $400
Total Estimated Cost $400

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 Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Compare: Estimated remediation cost is $400 (one-time) vs. $15,000 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

Old Union Water System (EPA ID: MS0410033) is a community water system in Mississippi that serves approximately 3,749 people from groundwater sources.

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

ZIP-Area Home Safety Context: C (68/100)

This is the average Home Safety Score for 1 of 3 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 16 records in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 16 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
February 2, 2025 Public Notice Non-health-based Resolved
February 2, 2025 Public Notice Non-health-based Resolved
January 1, 2024 TTHM Non-health-based Resolved
January 1, 2024 Total Haloacetic Acids (HAA5) Non-health-based Resolved
January 1, 2023 Nitrate-Nitrite Non-health-based Resolved
January 1, 2023 Nitrate Non-health-based Resolved
January 1, 2023 Nitrite Non-health-based Resolved
January 1, 2023 Nitrate-Nitrite Non-health-based Resolved
January 1, 2023 Nitrate Non-health-based Resolved
January 1, 2023 Nitrite Non-health-based Resolved
January 1, 2023 Nitrate-Nitrite Non-health-based Resolved
January 1, 2023 Nitrate Non-health-based Resolved
January 1, 2023 Nitrite Non-health-based Resolved
January 1, 2023 TTHM Non-health-based Resolved
January 1, 2023 Total Haloacetic Acids (HAA5) Non-health-based Resolved
January 1, 2022 Lead and Copper Rule Non-health-based Resolved

Contaminants Detected

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

Contaminant Category Violations Health-Based
Nitrate-Nitrite Monitoring & Reporting 3 No
Nitrate Monitoring & Reporting 3 No
Nitrite Monitoring & Reporting 3 No
Total Haloacetic Acids (HAA5) Monitoring & Reporting 2 No
TTHM Monitoring & Reporting 2 No
Public Notice Other (notice or report rule) 2 No
Public Notice Monitoring & Reporting 1 No

Lead & Copper

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

Lead Level Exceeds Action Level Sample Date
0.0007 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 2.

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 MS 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 Old Union Water System (MS0410033) on EPA.gov.

Frequently Asked Questions

Is Old Union Water System water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Old Union Water System; its 16 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Old Union Water System serve?

Old Union Water System serves approximately 3,749 people across 3 ZIP codes in Mississippi.

Where does Old Union Water System get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.

Samples collected
99

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

Frequently Asked Questions

Is water from Old Union Water System safe to drink? ▼
Old Union Water System has 16 recorded violations since 2021. The C shown is a ZIP-area score, not a grade for this utility; see the violation table for what was violated.
Should I use a water filter? ▼
Given 16 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 Old Union Water System serve? ▼
Old Union Water System serves approximately 3,749 people with drinking water across 3 ZIP codes.
What is Old Union Water System's water source? ▼
Old Union Water System draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Old Union Water System's water? ▼
The most recent 90th-percentile lead result on record is 0.0007 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 Old Union Water System? ▼
The ZIP codes mapped to Old Union Water System have a median household income of $52,985 (Census ZIP-code estimate). In CEJST data, 48% 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 Old Union Water System get its water? ▼
Old Union Water System'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. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). Old Union Water System (MS): 16 EPA Violations. https://zipcheckup.com/water-system/ms0410033/
BibTeX
@misc{zipcheckup-water-system-ms0410033,
  author = {{ZipCheckup}},
  title  = {{Old Union Water System (MS): 16 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ms0410033/}
}

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

Old Union Water System (EPA ID: MS0410033) - request the latest Consumer Confidence Report or ask about specific contaminants.

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