The Marbled Murrelet is a small seabird from the North Pacific, present at Sequalitchew Creek in the Puget Sound. They are listed on the Federal Endangered Species list

This report provides technical detail on impacts to plants and animals should the mining operations in DuPont, Washington be allowed to expand. CalPortland (formerly known as Pioneer Aggregates, Glacier Northwest and Lone Star) proposes to expand its current mining operations by approximately 200-acres by mining adjacent land located mostly to the east of the current mine area. They hope to eventually expand overall to 710 aces of our community. Read the full report, here:
Impacts on Plants and Animals -Technical Report

The Western Pond Turtle, listed on the State Endangered Species is present in Sequalitchew Lake

It describes existing conditions of plants and animals, as well as analyzes potential impacts to plants and animals, and surface water resources from the proposed 200-acre expansion. In addition, proposed monitoring and mitigation measures for the proposed project are presented. Note the listings for endangered and threatened species.

Significant Unavoidable Adverse, Permanent Impacts:
Drawing down the Vashon aquifer would reduce flows in Sequalitchew Creek upstream of the proposed confluence with North Sequalitchew Creek, such that most flow would be subsurface.

McKay's Bunting, a Federal, Near Threatened Species present in our watershed

Aquifer drawdown would modify springs near Sequalitchew Creek and could reduce near-shore springs near Puget Sound. Aquifer drawdown could reduce the wetland area in Sequalitchew Creek riparian forest wetlands, West Edmond Marsh and Wetland 1D, and degrade wetland habitat in these wetlands due to early season loss of surface inundation and saturation in the early growing and breeding season.

Red-Legged Frog, found throughout our watershed will be adversely impacted by the mine expansion.

Near Old Fort Lake is a Douglas Squirrel (Tamiasciurus douglasii), which is a pine squirrel found in the Pacific coastal states

Clearing of existing vegetation from the proposed mine expansion area would reduce forested habitats within the City of DuPont and eliminate an intact, native wetland system (Kettle Wetland).