What is the address of City Of La Coste WWTP?

The address on the plant’s EPA facility record is 11331 Cr 584, La Coste, TX 78039, in Medina County. Its coordinates are 29.3084, -98.8058. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does City Of La Coste WWTP treat?

City Of La Coste WWTP treats an average of 0.21 MGD and is permitted for a design flow of 0.2 MGD.

What treatment technology does City Of La Coste WWTP use?

Klarifi has identified 2 treatment structures and unit processes at the La Coste 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 La Coste WWTP?

The facility discharges under NPDES permit TX0107743, currently effective, expiring September 2030.

Is City Of La Coste WWTP in compliance?

Discharge monitoring reports show 7 violations at City Of La Coste WWTP in the last three years, 7 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates City Of La Coste WWTP and how do I contact them?

City Of La Coste WWTP is a publicly owned treatment works in La Coste, Texas. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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City Of La Coste WWTP

11331 Cr 584, La Coste, TX 78039 · Medina County · Publicly Owned Treatment Works

Average flow: 0.21 MGD

Design flow: 0.2 MGD

NPDES permit: TX0107743; Effective

Permit expires: September 2030

Population served: 1,458; CWNS 2022

City Of La Coste WWTP is a publicly owned wastewater treatment works in La Coste, Medina County, Texas treating an average of 0.21 million gallons per day against a permitted design capacity of 0.2 MGD, serving about 1,458 residents. It discharges under NPDES permit TX0107743 (effective), which expires in September 2030, with 7 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at City Of La Coste WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 7

Effluent violations: 7

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

Key contacts

1 verified contact for City Of La Coste WWTP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at City Of La Coste WWTP, plus the full compliance history and discharge data.

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City Of La Coste WWTP: 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 May 26, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms

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