GUILFORD WATER AUTH Water Quality Report
Population
28,135
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 129
violations recorded
C
Fair
Safety Grade
129 violations in the past 5 years, including 2 health-based
System Details
- PWSID
- PA7280038
- Population Served
- 28,135
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Pennsylvania
- EPA Region
- 3
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 2 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 134 |
| Contaminant 0700 | ✕ Health-Based | 5 |
| Gross Alpha | ⚠ Monitoring/Reporting | 2 |
| Uranium | ⚠ Monitoring/Reporting | 1 |
| Contaminant 4020 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 4030 | ⚠ Monitoring/Reporting | 1 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 5 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 4 |
| Cyanide | ⚠ Monitoring/Reporting | 1 |
| Contaminant 2378 | ⚠ Monitoring/Reporting | 4 |
| Vinyl Chloride | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2955 | ⚠ Monitoring/Reporting | 4 |
| Trichloroethylene (TCE) | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2968 | ⚠ Monitoring/Reporting | 4 |
| Tetrachloroethylene (PCE) | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2977 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2979 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2980 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2981 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2982 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2983 | ⚠ Monitoring/Reporting | 4 |
| Chloramine | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2985 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2987 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2989 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2990 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2991 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2992 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2996 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 2039 | ⚠ Monitoring/Reporting | 1 |
Violation History
2025
2
2024
1
2022
126
2020
80
2018
10
2017
2
2016
1
2012
1
2011
7
2010
1
Total violations on record: 237
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Uranium
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride
How does this compare?
This systemNational average
Grade C
Avg: B-C
237violations total
846% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 4× the national average.