Public water system record
Lago Del Oro Water Company
Serves Catalina and Saddlebrooke, Pinal County and Pima County, AZ · 18,132 people served
Federal records show no health-based violations and 38 monitoring/reporting issues for Lago Del Oro Water Company in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 38
Key facts
- Lago Del Oro Water Company draws water from 19 wells.
- Record on file since 1999, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,680 unknown out of 7,193 service lines.
Check whether Lago Del Oro Water Company serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Radium-228
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Radium-226
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2016 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
Full record since 1999
EPA's records for Lago Del Oro Water Company go back to 1999. Before October 19, 2016 they list no health-based violations and 593 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 8 |
| 2000s | 0 | 451 |
| 2010 to October 18, 2016 | 0 | 134 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 7 |
Where the water comes from
Lago Del Oro Water Company draws water from 19 wells. 3 other public water systems have emergency connections to Lago Del Oro Water Company.
Annual water quality report
Lago Del Oro Water Company must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Arizona.
Certified drinking water labs by state EPA guidance for private wells