What is the address of City Of Mount Calm?

The address on the plant’s EPA facility record is 356 Farm-To-Market 339, Mount Calm, TX 76673, in Hill County. Its coordinates are 31.7547, -96.8742. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does City Of Mount Calm treat?

City Of Mount Calm treats an average of 0.0021 MGD and is permitted for a design flow of 0.04 MGD.

What treatment technology does City Of Mount Calm use?

Klarifi has identified one treatment structure or unit process at the Mount Calm facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for City Of Mount Calm?

The facility discharges under NPDES permit TX0142522, currently effective, expiring December 2028.

Is City Of Mount Calm in compliance?

Discharge monitoring reports show 57 violations at City Of Mount Calm in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of Mount Calm and how do I contact them?

City Of Mount Calm is a publicly owned treatment works in Mount Calm, Texas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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City Of Mount Calm

356 Farm-To-Market 339, Mount Calm, TX 76673 · Hill County · Publicly Owned Treatment Works

Average flow: 0.0021 MGD

Design flow: 0.04 MGD

NPDES permit: TX0142522; Effective

Permit expires: December 2028

Population served: —; CWNS 2022

City Of Mount Calm is a publicly owned wastewater treatment plant in Mount Calm, Hill County, Texas treating an average of 0.0021 million gallons per day against a permitted design capacity of 0.04 MGD. It discharges under NPDES permit TX0142522 (effective), which expires in December 2028, with 57 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at City Of Mount Calm.

Available with a free Klarifi account

See the full treatment train at City Of Mount Calm: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 57

Effluent violations: 1

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at City Of Mount Calm.

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Nearby wastewater treatment plants in Texas

City Of Hubbard WWTF

Hubbard · 7 mi away

0.35 MGD

City Of Penelope WWTP

Penelope · 8 mi away

0.02 MGD

City Of Malone WWTP

Malone · 12 mi away

0.03 MGD

City Of West WWTP

West · 13 mi away

0.39 MGD

Mclennan County Wcid No 2 WWTF

Elm Mott · 13 mi away

0.13 MGD

City Of Coolidge WWTF

Coolidge · 14 mi away

0.05 MGD

Dawson WWTP

Dawson · 14 mi away

0.04 MGD

City Of Mart WWTP

Mart · 15 mi away

0.23 MGD

City Of Mount Calm: frequently asked questions

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 October 26, 2026; facility record last updated April 12, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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