DOUGLAS CITY OF Water Quality Report
Population
16,656
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 10
violations recorded
C
Fair
Safety Grade
10 violations in the past 5 years, including 1 health-based
System Details
- PWSID
- AZ0402014
- Population Served
- 16,656
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Arizona
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 5 |
| Contaminant 5000 | ⚠ Monitoring/Reporting | 4 |
| Contaminant 3100 | ✕ Health-Based | 1 |
| Contaminant 0999 | ⚠ Monitoring/Reporting | 14 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 3 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 3 |
| Nitrate | ⚠ Monitoring/Reporting | 2 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 1 |
Violation History
2024
3
2023
2
2022
5
2020
8
2019
1
2018
1
2017
2
2016
6
2015
2
2006
1
Total violations on record: 35
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: Nitrate
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
35violations total
125% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 2× the national average.