The Clearwater Lake Chain has elevated nutrient levels which lead to poor water quality. The City of Kimball and surrounding agricultural area drains, mostly untreated, into a trout stream which empties into the Clearwater River Chain of Lakes.
The goal of this project is to update existing bacteria and Total Suspended Solids (TSS) source inventory through desktop survey and field reconnaissance to identify and prioritize locations to reduce sediment and bacteria loading to the Clearwater River; then, design and implement best management practices (BMPs) at prioritized locations to reduce loading.
Rising temperatures and increased precipitation contribute to decreased oxygen and increased methane in Minnesota lakes and wetlands. We will identify impacts on water quality and methane emissions, providing management guidance.
This project targets an older residential area that does not have permanent water quality practices. Storm water presently runs directly to the Mississippi River using out of date and under-sized infrastructure. Expanding upon a very successful pilot program for retro-fitting storm water treatment practices in residential neighborhoods, rain gardens will be strategically placed to maximize water quality benefits for each dollar spent. Each rain garden will have a pre-treatment device to help achieve the cost-effective long-term water quality goals of the City.
The Q-Lot at St. Cloud State University (SCSU) is an 8 acre (1,000 spaces) gravel and asphalt parking lot. The parking lot's surface is impervious, which means it doesn't allow for rainfall or snow melt to soak into the ground. Instead, the water runs off directly into storm sewers, taking with it sediment, bacteria, automotive fluids and other pollutants which flow straight into the Mississippi River. SCSU staff has frequently witnessed plumes of sediment the color of chocolate milk where the storm sewer discharges into the river.
The St. Cloud Waste Water Treatment Facility (SCWWTF) is currently conducting long term planning for future biosolids management. The most likely path forward includes dewatering of the digested biosolids, which will produce a supernatant stream with significant phosphorus and ammonia loads that would be returned to the liquids treatment portion of the WWTF. Returning these nutrient loads to the liquids train would result in increases to effluent concentrations, increases in power consumption, or both.
The City of Cold Spring is looking to retrofit 24 acres of existing development within a 138 acre subcatchment of the City to improve the water quality of Cold Spring Creek, a designated trout stream. The large amounts of hard surfaces within the subcatchment area do not allow for rainfall or snow melt to soak into the ground. The stormwater carries with it sediment, bacteria, automotive fluids, and other pollutants. Cold Spring staff has frequently witnessed sediment plumes, the color of chocolate milk, at the storm sewer outfalls.
