Mount Calm, TX · Hill County · Publicly Owned Treatment Works
City Of Mount Calm is a publicly owned wastewater treatment plant in Mount Calm, Hill County, Texas treating an average of 0.002 million gallons per day against a permitted design capacity of 0.04 MGD. Treatment on site includes uncovered lagoons. It discharges under NPDES permit TX0142522 (effective), which expires in December 2028, with 57 recorded violations in the last three years.
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
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Hubbard · 7 mi away
0.34 MGD
Penelope · 8 mi away
0.02 MGD
Malone · 12 mi away
0.03 MGD
West · 13 mi away
0.52 MGD
Elm Mott · 13 mi away
0.07 MGD
Coolidge · 14 mi away
0.08 MGD
Dawson · 14 mi away
0.04 MGD
Mart · 15 mi away
0.32 MGD
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated April 12, 2025.