Second Mesa Day School - BIA
Arizona — Community Water System — PWSID: 090400057
System Information
| PWSID | 090400057 |
| System Name | Second Mesa Day School - BIA |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Aug 21, 2007 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | Arizona |
| City | Second Mesa |
| ZIP Code | 86043 |
| Address | PO Box 98 |
| Organization | Second Mesa Day School |
| Phone | — |
Population & Service
| Population Served | 366 |
| Service Connections | 17 |
Drinking Water Violations (177)
This water system has 177 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Sep 30, 2025 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Archived | Sep 30, 2025 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | — | Public Notice | Other | No | No | — | — | — | Resolved | Aug 8, 2025 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2025 | — | Public Notice | Other | No | No | — | — | — | Resolved | Aug 8, 2025 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2025 | — | Public Notice | Other | No | No | — | — | — | Resolved | Aug 8, 2025 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2025 | Mar 31, 2025 | Arsenic | MCL | Yes | No | .0102 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2025 | Arsenic Rule |
| Jan 1, 2025 | Mar 31, 2025 | Arsenic | MCL | Yes | No | .0102 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2025 | Arsenic Rule |
| Jan 1, 2025 | Mar 31, 2025 | Arsenic | MCL | Yes | No | .0102 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2025 | Arsenic Rule |
| Oct 1, 2024 | Dec 31, 2024 | Arsenic | MCL | Yes | No | .0112 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2024 | Arsenic Rule |
| Oct 1, 2024 | Dec 31, 2024 | Arsenic | MCL | Yes | No | .0112 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2024 | Arsenic Rule |
| Oct 1, 2024 | Dec 31, 2024 | Arsenic | MCL | Yes | No | .0112 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2024 | Arsenic Rule |
| Jul 1, 2024 | Sep 30, 2024 | Arsenic | MCL | Yes | No | .0109 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2024 | Arsenic Rule |
| Jul 1, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 1, 2025 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 1, 2025 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 23, 2025 | Consumer Confidence Rule |
| Jun 1, 2024 | Jun 30, 2024 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Jun 30, 2024 | Revised Total Coliform Rule |
| Jun 1, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 1, 2025 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2024 | Jun 30, 2024 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | May 1, 2025 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2024 | Jun 30, 2024 | Arsenic | MCL | Yes | No | .0104 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2024 | Arsenic Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2024 | Nitrate Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Jul 1, 2021 | Sep 30, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 29, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2021 | Jun 30, 2021 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2021 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2020 | Mar 31, 2020 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2020 | Arsenic Rule |
| Oct 1, 2019 | Dec 31, 2019 | Arsenic | MCL | Yes | No | .0111 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2019 | Arsenic Rule |
| Jul 1, 2019 | Sep 30, 2019 | Arsenic | MCL | Yes | No | .0117 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2019 | Arsenic Rule |
| Apr 1, 2019 | Jun 30, 2019 | Arsenic | MCL | Yes | No | .013 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2019 | Arsenic Rule |
| Jan 1, 2019 | Mar 31, 2019 | Arsenic | MCL | Yes | No | .0112 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2019 | Arsenic Rule |
| Jul 1, 2018 | Sep 30, 2018 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2018 | Arsenic Rule |
| Apr 1, 2017 | Jun 30, 2017 | Arsenic | MCL | Yes | No | .0136 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2017 | Arsenic Rule |
| Jan 1, 2017 | Mar 31, 2017 | Arsenic | MCL | Yes | No | .0182 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2017 | Arsenic Rule |
| Oct 1, 2016 | Dec 31, 2016 | Arsenic | MCL | Yes | No | .0134 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2016 | Arsenic Rule |
| Aug 1, 2016 | Aug 31, 2016 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Aug 31, 2016 | Revised Total Coliform Rule |
| Jun 1, 2016 | Jun 30, 2016 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Jun 30, 2016 | Revised Total Coliform Rule |
| Apr 1, 2016 | Jun 30, 2016 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Jun 30, 2016 | Arsenic Rule |
| Jan 1, 2015 | Dec 31, 2015 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2015 | Dec 31, 2015 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Dec 31, 2014 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2014 | Nitrate Rule |
| Jan 1, 2014 | Dec 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2013 | Sep 30, 2013 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2013 | Arsenic Rule |
| Jul 1, 2013 | Sep 30, 2013 | Arsenic | MCL | Yes | No | .0275 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2013 | Arsenic Rule |
| Jul 1, 2013 | — | Public Notice | Other | No | No | — | — | — | Resolved | Mar 30, 2017 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2013 | Sep 30, 2013 | Arsenic | MCL | Yes | No | .0275 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2013 | Arsenic Rule |
| Apr 1, 2013 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 5, 2016 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2013 | Jun 30, 2013 | Arsenic | MCL | Yes | No | .0275 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | Arsenic Rule |
| Apr 1, 2013 | Jun 30, 2013 | Arsenic | MCL | Yes | No | .0275 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | Arsenic Rule |
| Jan 1, 2013 | Mar 31, 2013 | Arsenic | MCL | Yes | No | .02895 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | Arsenic Rule |
| Jan 1, 2013 | Mar 31, 2013 | Arsenic | MCL | Yes | No | .02895 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | Arsenic Rule |
| Oct 1, 2012 | Dec 31, 2012 | Arsenic | MCL | Yes | No | .02895 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2012 | Arsenic Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.