TapSafetyReport
C45/100

ST JOSEPH WATER SYSTEM — Water Quality Report 2026

Serving 1,533 people · Tennessee

Water Source
Groundwater Under Influence of Surface Water
County
—
System ID
TN0000604
Violations
36

Contaminant Test Results

2 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
2.80 mg/L1.30 mg/LOver Limit
Lead (90th percentile)
0.001 mg/L0.015 mg/LAbove Goal

EPA Violation History

9

Violations (last 5yr)

3

Unresolved

0

Health-Related

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 1, 2025 – March 31, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2025 – March 31, 2025Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: November 1, 2024 – November 30, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2024 – December 31, 2024Rule: Stage 1 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Surface water treatment technique failure

When: July 1, 2023Enforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – June 28, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 9, 2022 – February 6, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: February 1, 2022 – February 28, 2022Rule: Total Coliform RuleEnforcement: Formal — state order issued
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021Enforcement: Formal — state order issued

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About ST JOSEPH WATER SYSTEM

Is ST JOSEPH WATER SYSTEM water safe to drink?

ST JOSEPH WATER SYSTEM water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 36 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has ST JOSEPH WATER SYSTEM detected?

2 contaminants were tested in ST JOSEPH WATER SYSTEM's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).

Does ST JOSEPH WATER SYSTEM have any EPA violations?

Yes, ST JOSEPH WATER SYSTEM has 36 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, Other. 2 are health-based violations.

How many people does ST JOSEPH WATER SYSTEM serve?

ST JOSEPH WATER SYSTEM serves approximately 1,533 people, Tennessee. The system provides water to 1 community: St Joseph.

What type of water does ST JOSEPH WATER SYSTEM provide?

ST JOSEPH WATER SYSTEM sources its water from groundwater under influence of surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TN0000604.

How does ST JOSEPH WATER SYSTEM compare to other utilities in Tennessee?

ST JOSEPH WATER SYSTEM scores 45/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Tennessee state page for a full comparison of water systems.

Cities Served

St Joseph