The goal of the Pomme de Terre River Association (JPB) is to improve the local water resources within the watershed through targeted voluntary efforts and the building of strong relationships with local landowners, producers, and citizens. The Pomme de Terre River is currently not meeting state water quality for sediment. The purpose of this project is to strategically work towards a 53% sediment reduction goal at the mouth of the Pomme de Terre River based on a Watershed Restoration and Protection Strategy document.
This project builds on the momentum and success of previous Clean Water Fund grants in making significant non-point source pollution reductions that address state-identified turbidity, excess nutrient and dissolved oxygen impairments of the Lower Minnesota River and points downstream. These water quality improvements will be achieved by constructing high-value, cost-effective conservation best management practices in Scott County directly tributary to the Minnesota River.
The City of Apple Valley will conduct a subwatershed assessment on the sections of Apple Valley draining to Keller Lake to target potential projects. The goal is to identify potential cost effective retrofit projects and operations improvements capable of fulfilling needed phosphorus reductions ahead of a number of planned infrastructure projects tentatively scheduled for 2018-2022.
The purpose of this project is to complete Intensive Hydraulic Conditioning on the remaining 60% of the watershed to be able to utilize the Prioritize, Target, and Measure application (PTMApp). The basin has 1.1 million acres of drainage with approximately 630,000 acres remaining to be hydro conditioned. With the advancement in targeting pollution sources within the watershed and state, the partners intend to be able to more accurately target conservation practices with the hydraulic conditioning completed.
The Greater Blue Earth River Basin Alliance (GBERBA) along with Soil and Water Conservation Districts, Counties, landowners, and drainage authorities in the ten member counties will install conservation drainage practices to improve water quality. 103E drainage systems with documented sediment or water quality issues are the focus with the goal of installing 52 practices such as improved side inlets (grade stabilization structures), alternative tile inlets, denitrifying bioreactors, saturated buffers, storage wetlands and others.
Lake Okabena does not meet state water quality standards due to high phosphorus levels. The Total Daily Maximum Load Study identified a 70% reduction in phosphorus from the watershed is needed to meet water quality standards. The City of Worthington owns the recently closed Prairie View Golf Course. Okabena Creek flows through the golf course and some small ponds. This project will modify these three ponds to increase storage and removal efficiency, and add an iron-enhanced filter bench to enhance soluble phosphorus removal.