Overview
Mountain Creek Regional WWTP serves approximately 21,450 residents in Midlothian, Texas. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater.
Mountain Creek Regional WWTP is a municipal wastewater treatment facility located in Midlothian, Texas, within Ellis County. The plant serves a population of about 21,450 people, placing it in the medium-agglomeration category for U.S. wastewater infrastructure. As part of the regional utility network, it handles domestic wastewater from the surrounding community. Under the U.S. Clean Water Act, municipal treatment plants of this scale are typically required to provide secondary treatment, which involves biological processes to reduce organic matter and suspended solids. The plant's discharge is regulated through a National Pollutant Discharge Elimination System (NPDES) permit issued by the Texas Commission on Environmental Quality (TCEQ), ensuring compliance with federal and state water quality standards. The treated effluent from Mountain Creek Regional WWTP is discharged into a local waterway that ultimately drains into the Trinity River basin. The Trinity River flows southeast through Texas and empties into Trinity Bay, part of the Galveston Bay system, which supports diverse aquatic life and is an important estuarine habitat. The plant plays a key role in protecting downstream water quality in this ecologically significant watershed.
Environmental context
The plant discharges into a tributary of the Trinity River, which flows into Trinity Bay and the Galveston Bay estuary. This estuarine system supports a variety of fish, shellfish, and migratory birds, making water quality management critical. The region's semi-arid climate and urban development increase the importance of maintaining low nutrient and pollutant loads to prevent eutrophication and protect aquatic habitats.
Frequently asked questions
Mountain Creek Regional WWTP is located on Auger Road in Midlothian, Texas, within Ellis County, United States.
The plant serves approximately 21,450 residents, making it a medium-sized municipal wastewater treatment facility.
The treated effluent is discharged into a local waterway that is part of the Trinity River basin, eventually reaching Trinity Bay and the Galveston Bay estuary.
The plant operates under the U.S. Clean Water Act and is regulated through an NPDES permit issued by the Texas Commission on Environmental Quality (TCEQ), which sets limits on pollutants to protect water quality.
Under the Clean Water Act, municipal plants of this size are typically required to provide secondary treatment, which includes biological processes to remove organic matter and suspended solids before discharge.
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