C41/100
Slippery Rock Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 15,778 residents · Pennsylvania
What's In Slippery Rock's Tap Water?
51
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
0
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 11, 2024 – March 25, 2024Rule: Total Coliform 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: November 1, 2023 – November 30, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – December 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2023 – December 31, 2023Enforcement: 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
Water Utility Details
SLIPPERY ROCK MUNI AUTH
Population Served
15,778
Water Source
Groundwater
System ID
PA5100079
Frequently Asked Questions About Slippery Rock Water
Is Slippery Rock tap water safe to drink?
Slippery Rock, Pennsylvania tap water receives a grade of C (41/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 52 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Slippery Rock's water?
Of the 51 contaminants tested in Slippery Rock's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Slippery Rock have any water quality violations?
Yes, Slippery Rock has 52 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Slippery Rock?
Slippery Rock water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Slippery Rock's tap water come from?
Slippery Rock's drinking water is sourced from groundwater and supplied by SLIPPERY ROCK MUNI AUTH. The system serves approximately 15,778 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Slippery Rock's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Slippery Rock's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Slippery Rock's water compare to other cities in Pennsylvania?
Slippery Rock's water quality score of 41/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Pennsylvania state page to see how all cities in the state compare.
What should I do if I'm concerned about Slippery Rock's water quality?
If you have concerns about Slippery Rock's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SLIPPERY ROCK MUNI AUTH) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.