Holland WWTP - Secondary Treatment Plant in Dubois County, Indiana

Holland WWTP is a municipal wastewater treatment facility located in Dubois County, Indiana, United States. The plant serves a small community of 626 residents, reflecting its role in rural wastewater management within the state. The facility provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal plants. With a designed capacity of 378.54 megaliters and an actual discharge volume of 227.13 megaliters, the plant operates well within its capacity, indicating effective treatment of local wastewater. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River basin. This discharge supports the ecological health of downstream aquatic habitats, including streams and rivers that contribute to the larger Gulf of Mexico watershed.

The plant's discharge enters local streams within the Mississippi River basin, which flows into the Gulf of Mexico. This watershed supports diverse aquatic life and is an important migratory corridor for fish and birds. The secondary treatment helps reduce nutrient loads, mitigating potential impacts on downstream ecosystems.