Montgomery County tap water
0 of 42 water systems serving Montgomery County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 328 community water systems list this county as served; 39 serve 3,300+ people with full PFAS testing.
- 70 had a health-based violation since 2021-10-26.
Largest systems serving this county
| System | Source | People served (whole system) | PFAS above a 2024 level? | Violations since 2021-10-26 |
|---|---|---|---|---|
| City of Conroe | Purchased surface water | 113,912 | No | 0 |
| Porter Special Utility District | Groundwater | 26,388 | No | 0 |
| Montgomery Trace Water System | Purchased surface water | 25,917 | No | 0 |
| Montgomery County Mud 46 | Purchased surface water | 24,399 | No | 0 |
| Montgomery County Mud 47 | Purchased surface water | 24,171 | No | 0 |
| Montgomery County Mud 67 | Purchased surface water | 16,821 | No | 0 |
| Montgomery County Mud 60 | Purchased surface water | 15,036 | No | 0 |
| New Caney Mud | Groundwater | 14,307 | No | 0 |
| City of Willis | Groundwater | 14,133 | No | 2 |
| Southern Montgomery County Mud | Purchased surface water | 13,372 | No | 0 |
| Montgomery County Mud 7 | Purchased surface water | 12,528 | No | 0 |
| Rayford Road Mud | Purchased surface water | 11,550 | No | 0 |
Which one is yours? A county usually has several utilities. Your bill or your utility's annual water-quality report names yours. Population is for the whole system, which can cross county lines.
Not medical or legal advice. UCMR 5 results are screening data, not compliance determinations.
Sources and freshness
Public-water-system facts, violations and lead/copper results: EPA ECHO SDWA download (SDWIS snapshot 2026-10-13). PFAS and lithium results: EPA UCMR 5 final data (sampling 2023–2025). Both are U.S. government works, downloaded 2026-10-26. Numbers are computed by the published method; the same fields are in the open data files.