Diaz WWTP - Advanced Wastewater Treatment in Diaz, Arkansas

Diaz WWTP is a municipal wastewater treatment plant located on Anna Road in Diaz, Jackson County, Arkansas. It serves a small population of 891 residents, reflecting the rural character of the area. The plant is part of the state's wastewater infrastructure managed under the Clean Water Act. The facility provides advanced treatment, which goes beyond the secondary treatment standard required by the U.S. EPA for most municipal plants. Advanced treatment typically includes nutrient removal or other processes to reduce pollutants further. The plant's designed capacity is 870.64 units, with an actual discharge volume of 121.13 units, indicating it operates well below its capacity. The treated effluent is discharged into a local water body that ultimately drains into the White River basin, a major tributary of the Mississippi River. The White River supports diverse aquatic life and is an important ecological corridor in the region. The plant's advanced treatment helps protect downstream water quality in this sensitive watershed.

The plant's discharge enters a local stream that flows into the White River, which meanders through Arkansas before joining the Mississippi River. The White River basin supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. Advanced treatment at Diaz WWTP reduces nutrient loading, helping to prevent eutrophication in downstream lakes and the Gulf of Mexico.