PORTLAND WATER DISTRICT-GREATER Water Quality Report
Population
135,068
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 28
violations recorded
C
Fair
Safety Grade
28 violations in the past 5 years
System Details
- PWSID
- ME0091300
- Population Served
- 135,068
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Maine
- EPA Region
- 1
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 1011 | ⚠ Monitoring/Reporting | 8 |
| Contaminant 2920 | ⚠ Monitoring/Reporting | 8 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 6 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 6 |
Violation History
2022
22
2021
6
Total violations on record: 28
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
How does this compare?
This systemNational average
Grade C
Avg: B-C
28violations total
100% of national average
National avg: ~28 per system
🏙️ This is a large system — serving 20× more people than the national average.