Plant 2 Harlingen Wastewater Treatment Facility, Harlingen, Texas

Plant 2 Harlingen is a municipal wastewater treatment facility located in Harlingen, Texas, within Cameron County. The plant serves a population of about 77,620 residents, placing it in the medium-agglomeration category for U. S. facilities. Its location near the Treasure Hills Golf Club and Augusta National Drive reflects its integration into the local urban landscape. As a U. S. facility, Plant 2 Harlingen operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Texas Commission on Environmental Quality (TCEQ). The plant's designed capacity is 1.00 million gallons per day, which aligns with the scale needed for a community of this size. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Rio Grande and then the Gulf of Mexico. This discharge contributes to the water quality management of the region, supporting downstream ecosystems and recreational uses. The facility plays a key role in protecting public health and the environment in the Lower Rio Grande Valley.

Plant 2 Harlingen discharges into the local drainage network that flows toward the Rio Grande, a major river forming the U. S. -Mexico border. The Rio Grande empties into the Gulf of Mexico, supporting diverse aquatic habitats including estuaries and coastal wetlands. The region is ecologically sensitive, hosting migratory bird routes and fish species that rely on healthy water quality. Proper treatment at this facility helps mitigate nutrient and pollutant loads to downstream waters.