LAGO DEL ORO WATER COMPANY Water Quality Report
Population
18,132
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
System Details
- PWSID
- AZ0411117
- Population Served
- 18,132
- Water Source
- Ground Water
- Owner
- Private
- State
- Arizona
- EPA Region
- 9
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 13 |
| Gross Alpha | ⚠ Monitoring/Reporting | 17 |
| Uranium | ⚠ Monitoring/Reporting | 17 |
| Radium-226 | ⚠ Monitoring/Reporting | 17 |
| Contaminant 4020 | ⚠ Monitoring/Reporting | 17 |
| Contaminant 4030 | ⚠ Monitoring/Reporting | 17 |
| Nitrate | ⚠ Monitoring/Reporting | 2 |
| Contaminant 2378 | ⚠ Monitoring/Reporting | 6 |
| Vinyl Chloride | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2955 | ⚠ Monitoring/Reporting | 6 |
| Trichloroethylene (TCE) | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2968 | ⚠ Monitoring/Reporting | 6 |
| Tetrachloroethylene (PCE) | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2976 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2977 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2979 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2980 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2981 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2982 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2983 | ⚠ Monitoring/Reporting | 6 |
| Chloramine | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2985 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2987 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2989 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2990 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2991 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2992 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2996 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 2063 | ⚠ Monitoring/Reporting | 18 |
| Contaminant 0999 | ⚠ Monitoring/Reporting | 5 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 2 |
Violation History
2025
5
2022
3
2021
2
2019
2
2016
44
2015
62
2014
43
2013
1
2012
2
2011
2
Total violations on record: 251
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, Uranium, Radium-226
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride
How does this compare?
This systemNational average
Grade C
Avg: B-C
251violations total
896% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 3× the national average.