A88/100
Rock Hall Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,750 residents · Maryland
What's In Rock Hall's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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
TOWN OF ROCK HALL
Population Served
1,750
Water Source
Groundwater
System ID
MD0140006
Frequently Asked Questions About Rock Hall Water
Is Rock Hall tap water safe to drink?
Rock Hall, Maryland tap water receives a grade of A (88/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Rock Hall's water?
Of the 1 contaminants tested in Rock Hall'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 Rock Hall have any water quality violations?
Yes, Rock Hall has 9 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR. None of these are classified as health-based violations.
Do I need a water filter in Rock Hall?
Rock Hall 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 Rock Hall's tap water come from?
Rock Hall's drinking water is sourced from groundwater and supplied by TOWN OF ROCK HALL. The system serves approximately 1,750 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Rock Hall'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. Rock Hall'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 Rock Hall's water compare to other cities in Maryland?
Rock Hall's water quality score of 88/100 earns a grade of A, which is considered excellent. This places Rock Hall among the better-performing water systems in Maryland. Visit our Maryland state page to see how all cities in the state compare.
What should I do if I'm concerned about Rock Hall's water quality?
If you have concerns about Rock Hall'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 (TOWN OF ROCK HALL) 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.