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City Of Wallis-Plant - 6810 Marek Street

Fm Rd 1093 & St Hwy 36, Wallis, TX 77485 · Austin County · Publicly Owned Treatment Works

Average flow
0.15 MGD
Design flow
0.5 MGD
NPDES permit
TX0025968
Effective
Permit expires
September 2029
Population served
1,389
CWNS 2022

City Of Wallis-Plant - 6810 Marek Street is a publicly owned wastewater treatment plant in Wallis, Austin County, Texas treating an average of 0.15 million gallons per day against a permitted design capacity of 0.5 MGD, serving about 1,389 residents. It discharges under NPDES permit TX0025968 (effective), which expires in September 2029, with 28 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at City Of Wallis-Plant - 6810 Marek Street.

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Compliance snapshot (last 3 years)

Total violations
28
Effluent violations
13

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 Wallis-Plant - 6810 Marek Street.

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Nearby wastewater treatment plants in Texas

Brazos Isd WWTP

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City Of Orchard WWTF

Orchard · 6 mi away

0.1 MGD

Wharton County Wcid 2 WWTP

East Bernard · 7 mi away

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Fort Bend County Mud 214 WWTP

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City Of Fulshear WWTF

Fulshear · 12 mi away

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Brookshire Mwd WWTP

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Fulshear Mud 3a WWTP

Fulshear · 13 mi away

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City Of Wallis-Plant - 6810 Marek Street: 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 March 14, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms


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