Public water system record
EPCOR - SAN TAN
Federal records show 2 health-based violations and 51 monitoring/reporting issues for EPCOR - SAN TAN in the last ten years. The most serious issue in this window was a resolved Nitrate violation.
System profile
Source water
Groundwater
ZIP
85143
Acute record in 10 years
No
Health-based records
2
Last 10 years
Monitoring issues
51
Last 10 years
Resolved vs. unresolved
53 resolved • 0 unresolved
PWSID
AZ0411128
EPA public water system identifier
Check your address
Check whether your address is served by this system.
Use the normal Tap Truth address lookup to verify whether a specific home resolves to EPCOR - SAN TAN.
Health-based violations
Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
|
330 | Jan 1, 2017 | Resolved | No |
|
Nitrate
Contaminant limit exceeded
|
330 | Jan 1, 2016 | Resolved | No |
Monitoring and reporting issues
Monitoring violations are administrative records. They mean required testing or reporting was missed, not that a contaminant was found above a safe level.
| Issue | Start date | Status |
|---|---|---|
|
Chlorine
Monitoring and reporting
|
Dec 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 7, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Dec 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Dec 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2017 | Resolved |