Mesa Grande (Tract 2)
PWS ID: 090605011 · Santa Ysabel, 09 92070
Population Served
43
Total Violations
278
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 15
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 201
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 12 | 2024 |
| Coliform (TCR) | MR | 7 | 2009 |
| Consumer Confidence Rule | Other | 5 | 2006 |
| Endrin | MR | 4 | 2020 |
| BHC-GAMMA | MR | 4 | 2020 |
| Methoxychlor | MR | 4 | 2020 |
| Toxaphene | MR | 4 | 2020 |
| Heptachlor epoxide | MR | 4 | 2020 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2020 |
| Chlordane | MR | 4 | 2020 |
| Heptachlor | MR | 4 | 2020 |
| Arsenic | MR | 3 | 2004 |
| Barium | MR | 3 | 2004 |
| Cadmium | MR | 3 | 2004 |
| Chromium | MR | 3 | 2004 |
| Fluoride | MR | 3 | 2004 |
| Mercury | MR | 3 | 2004 |
| Selenium | MR | 3 | 2004 |
| Hexachlorocyclopentadiene | MR | 3 | 2020 |
| Carbofuran | MR | 3 | 2004 |
| Atrazine | MR | 3 | 2004 |
| LASSO | MR | 3 | 2004 |
| 2,4-D | MR | 3 | 2004 |
| 2,4,5-TP | MR | 3 | 2004 |
| HEXACHLOROBENZENE | MR | 3 | 2020 |
| Pentachlorophenol | MR | 3 | 2004 |
| cis-1,2-Dichloroethylene | MR | 3 | 2004 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2004 |
| ETHYLENE DIBROMIDE | MR | 3 | 2004 |
| Xylenes, Total | MR | 3 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.