CITY OF ROCKVILLE Water Quality Report
Population
52,000
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 33
violations recorded
C
Fair
Safety Grade
33 violations in the past 5 years
System Details
- PWSID
- MD0150003
- Population Served
- 52,000
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Maryland
- EPA Region
- 3
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 5000 | ⚠ Monitoring/Reporting | 3 |
| Contaminant 2005 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2010 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2015 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2020 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2035 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2037 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2039 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2042 | ⚠ Monitoring/Reporting | 2 |
| Atrazine | ⚠ Monitoring/Reporting | 2 |
| Benzene | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2065 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2067 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2274 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2306 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2384 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2959 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 5200 | ⚠ Monitoring/Reporting | 1 |
Violation History
2025
1
2023
32
2013
1
2005
1
1997
1
Total violations on record: 36
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Atrazine, Benzene
How does this compare?
This systemNational average
Grade C
Avg: B-C
36violations total
129% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 8× the national average.