PFAS in Tribal Systems, EPA Region 6 drinking water
EPA's final UCMR 5 data covers 18 public water systems in Tribal Systems, EPA Region 6, serving about 132,475 people. PFAS turned up in 2 of them (11%). 0 averaged above at least one EPA limit at a sampling point.
Every tested system in Tribal Systems, EPA Region 6
Largest first. PFOA and PFOS columns show the average at each system's worst sampling point; EPA's limit for each is 4 ppt. Filter by name:
| Water system | People | PFOA | PFOS | PFAS found | Result |
|---|---|---|---|---|---|
| Sandia Resort & Casino · Bernalillo | 15,000 | - | - | 0 | None found |
| Mescalero Inn of the Mt. Gods | 14,542 | - | - | 0 | None found |
| Zuni Pueblo | 11,888 | - | - | 0 | None found |
| Santa Ana Westside · Santa Ana Pueblo | 10,691 | - | - | 0 | None found |
| Kickapoo Traditional Tribe · Eagle Pass | 9,384 | - | - | 1 | Below limits |
| Isleta Eastside · Isleta | 8,941 | - | - | 0 | None found |
| Ldc Laguna Rt 66 Casino · Laguna | 8,658 | - | - | 0 | None found |
| Chickasaw Winstar | 8,376 | - | - | 0 | None found |
| Tunica-biloxi Tribe of La | 8,103 | - | - | 0 | None found |
| Quapaw Downstream Casino & Resort · Quapaw | 6,000 | - | - | 0 | None found |
| Pottawatomie CO. Rwd #3 (dale Plant) | 5,780 | - | 2.1 | 2 | Sample at limit |
| Santo Domingo Pueblo · Santo Domingo | 5,328 | - | - | 0 | None found |
| Laguna Valley · Laguna | 4,500 | - | - | 0 | None found |
| Isleta Shea-whiff · Isleta | 4,403 | - | - | 0 | None found |
| San Felipe Black Mesa Casino · San Felipe Pueblo | 3,789 | - | - | 0 | None found |
| Pojoaque South · Santa Fe | 3,644 | - | - | 0 | None found |
| Taos Pueblo | 2,652 | - | - | 0 | None found |
| Eastern Shawnee · Wyandotte | 796 | - | - | 0 | None found |
Cite this page
Well & Tap. "PFAS in Tribal Systems, EPA Region 6 drinking water: results for 18 systems." Data: U.S. EPA UCMR 5, final release August 2026. https://wellandtap.com/pfas/tribal-systems-epa-region-6/
Source: EPA UCMR 5 final occurrence data (August 2026); population from EPA SDWIS. Method.