F0/100
MARS BOROUGH WATER WORKS — Water Quality Report 2026
Serving 1,956 people · Pennsylvania
Water Source
Groundwater
County
—
System ID
PA5100049
Violations
170
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.46 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: July 11, 2025 – September 23, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Violation related to Consumer Confidence Report
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2024 – June 30, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Violation related to Consumer Confidence Report
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: March 1, 2023 – March 31, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
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 MARS BOROUGH WATER WORKS
Is MARS BOROUGH WATER WORKS water safe to drink?
MARS BOROUGH WATER WORKS water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 170 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MARS BOROUGH WATER WORKS detected?
2 contaminants were tested in MARS BOROUGH WATER WORKS's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MARS BOROUGH WATER WORKS have any EPA violations?
Yes, MARS BOROUGH WATER WORKS has 170 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 1 are health-based violations.
How many people does MARS BOROUGH WATER WORKS serve?
MARS BOROUGH WATER WORKS serves approximately 1,956 people, Pennsylvania.
What type of water does MARS BOROUGH WATER WORKS provide?
MARS BOROUGH WATER WORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is PA5100049.
How does MARS BOROUGH WATER WORKS compare to other utilities in Pennsylvania?
MARS BOROUGH WATER WORKS scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Pennsylvania state page for a full comparison of water systems.