Lower Peshtigo River TWA WQM Plan, 2017

Project Title

Lower Peshtigo River TWA WQM Plan (GB07) 2017
Andrew Hudak, Primary Author and Investigator, WDNR

Lower Peshtigo River TWA WQM Plan (GB07) 2017

Study Purpose & Setting

The purpose of this project was to monitor the contemporary status of streams within the Lower Peshtigo Watershed. The Department and Marinette County desired current fish, habitat, macroinvertebrate, and water chemistry data for streams in this watershed. The data are used to determine whether these streams are achieving their designated use, assess the overall health of the watershed, and provide guidance to Marinette County for developing a 9 Key Element Plan to address non-point source issues in the watershed.

Management Priorities

Watershed Goals
The overall goal of this plan is to improve and protect water quality in the basin. This Targeted Watershed Assessment monitoring project provided substantial data to analyze current conditions and to make recommendations for future management actions in the area. This plan is designed to present monitoring study results, identify issues or concerns in the area found during the project and to make recommendations to improve or protect water quality consistent with Clean Water Act guidelines and state water quality standards.

Study Summary
Streams in the Lower Peshtigo River Watershed can typically be characterized as cool-warm to cool-cold headwater streams. Although 46 different species of fish were observed during survey work, over 50% of the streams surveyed contain five or fewer species. Eight of the species surveyed were considered intolerant and were most often observed in Left Foot Creek, Gravelly Brook, and the Peshtigo River. Intolerant species were largely absent with the exception of Mottled Sculpin and Rock Bass which were observed at low frequencies in scattered tributary streams along with a few other rare occurrences of Brook Trout, Spottail Shiner, and Lamprey Ammocoetes.

Management Priorities
Focus efforts to reduce non-point source impacts in the Trout and Bundy Creek Subwatershed and the small tributaries to Lake Michigan and the Peshtigo River below Hwy 64. Efforts should focus on landowners willingness to improve stream buffers, manage manure and inorganic nutrient application, improve tillage practices to prevent upland soils losses, and improve overall soil health in the watershed.