Maryland
Water Quality Report
90 Excellent
Average Score
90/100
Water Systems
161
Population
5.3M
Violations
316 13 unresolved
Score Distribution
54 A
10 B
0 C
2 D
2 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Copper (90th percentile) | 6 |
| Lead (90th percentile) | 2 |
Lowest Scoring Water Systems
3
River Bend Membership Corporation F
WV9902029 Hagerstown, MD 2,500 served
31
Town Of Elkton F
MD0070011 Elkton, MD 15,625 served
45
City Of Baltimore D
MD0300002 Baltimore, MD 1,600,000 served
52
Harford Technical High School D
MD1120035 Bel Air, MD 1,187 served
75
Fallston High School B
MD1120012 Bel Air, MD 1,113 served
Counties in Maryland
Cities in Maryland
View all 91 cities →Popular City Comparisons in Maryland
Quickly compare major cities in Maryland by water quality score and grade.
Frequently Asked Questions
Is tap water in Maryland safe to drink?
Maryland has an average WaterQ score of 90/100 across 161 public water systems. Safety can vary by city and system, so check your local report for recent violations and contaminants.
How many water systems are in Maryland?
WaterQ currently tracks 161 public water systems in Maryland.
Where can I compare cities in Maryland?
Use the city list below to open detailed reports, or visit the compare tool to benchmark two cities side-by-side on score, grade, and system coverage.