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Violation History
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About this data: ClearWater uses the EPA's Safe Drinking Water Information System (SDWIS). Data is for public water systems only; private wells are not included. Legal limits (MCLs) are minimum standards; some contaminants may still pose health risks below legal thresholds.
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MAWC YOUGH PLANT
GREENSBURG, PA · 133,000 people served · Surface Water
Data last updated: 2026-07-11
14 total violations on record. No currently active health-based violations.
Health-Based Violations
- Surface Water Treatment Rule: Treatment Technique Violation (Resolved) — State Compliance achieved (State) on 2022-10-12
- Total Haloacetic Acids (HAA5): Maximum Contaminant Level Violation (Resolved) — 1 enforcement action on record
Lead & Copper
EPA has no lead or copper 90th-percentile results on record for this system.
Lithium
This system was monitored for lithium and none was detected at or above EPA's minimum reporting level of 9 µg/L.
Lithium has no federal drinking water limit. The Health Reference Level is a non-regulatory screening value from EPA's CCL 5 process, not an enforceable standard, and a result above it is not a violation. The figure shown is the highest single detection reported for this system; EPA compares averages, not maxima, when it reports national statistics. Source: EPA UCMR 5 occurrence data, reference values from EPA's UCMR 5 Data Summary (January 2026), Table 2.
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MAWC YOUGH PLANT: Frequently Asked Questions
Is MAWC YOUGH PLANT water safe to drink?
MAWC YOUGH PLANT has had multiple health-based violations in recent years (grade C). Review the specific violations below and consider filtering your drinking water.
What violations has MAWC YOUGH PLANT had?
Recent health-based violations at MAWC YOUGH PLANT include: Surface Water Treatment Rule, Total Haloacetic Acids (HAA5). See the full violation history on this page for dates, status, and details.
Does MAWC YOUGH PLANT water have lead?
Lead in drinking water typically comes from household plumbing, not from MAWC YOUGH PLANT's treatment plant. See the Lead & Copper section on this page for the most recent 90th-percentile lead test results. If your home was built before 1986, consider running cold water for 30 seconds before drinking and using an NSF/ANSI 53-certified filter.
Related water quality pages
Lead & Copper
What To Do
Violations
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