Application of Hydroacoustics to Provide Continuous Real-Time Information on Metallic Contaminants in the Clark Fork during Superfund Remediation Activities at the Grant-Kohrs Ranch National Historic Site near Deer Lodge, Montana

Primary Investigators

USGS Investigators: Christopher A. Ellison

NPS Investigators: Jacque Lavelle

Project Details

Start Year: 2019

Category: Intensive

2019 2020 2021
$99,700 $96,420 $95,570
Project Location

NPS Park: Grant-Kohrs Ranch NHS

USGS Center: Wyoming-Montana Water Science Center

States: MT

The National Park Service (NPS) Grant-Kohrs Ranch National Historic Site commemorates the western frontier cattle era and is located in southwestern Montana, adjacent to the town of Deer Lodge. The GRKO is unique among National Park Service Units because it has the distinction of being the only NPS unit to be included on the National Priority List for Superfund cleanup.

The objective of the study is to provide high-accuracy real-time continuous estimates of metallic contaminant concentrations (MCCs) to quantify the effects of GRKO remediation activities on constituent transport in the Clark Fork as it flows through the GRKO property. Improved estimates of concentrations and loads will help the GRKO monitor and evaluate effects of the remediation activities.