Malta WWTP - Secondary Wastewater Treatment in Phillips County, Montana

Malta WWTP is a municipal wastewater treatment plant located in Phillips County, Montana, United States. The facility serves a population of approximately 2,170 residents, reflecting a small community in the rural northern plains. Its location near US 191 places it within the Missouri River watershed, which drains into the Mississippi River system. The plant provides secondary treatment, a standard level required under the US Clean Water Act for municipal facilities. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity of 1,048.56 units and current discharge volume of 931.21 units indicate it operates below capacity, with room for future growth. The treated effluent from Malta WWTP ultimately flows into the Missouri River basin, which supports diverse aquatic life and provides water for agriculture and recreation. The plant plays a key role in protecting local water quality in this semi-arid region, where water resources are critical for both ecosystems and human use.

Malta WWTP discharges into the Missouri River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream aquatic habitats in a region where water scarcity and agricultural runoff are key concerns. The facility's location in the northern Great Plains means its effluent supports local stream baseflow, which is vital for fish and wildlife during dry periods.