Newcastle Wastewater Treatment Plant Decommissioning

Newcastle, California

Foothill Associates completed a range of biological monitoring services for the installation of a new sewer pipeline and the de-watering of four sewage treatment ponds, and grading and restoration of the pond area to restore a natural drainage. Biological services included pre-construction surveys for rare plants (big-scale balsamroot, Brandegee’s clarkia, Butte County fritillary, and oval-leaved viburnum), roosting bats, California red-legged frog, and nesting birds; conducting biological awareness education course for the construction contractor; tree survey and impact analysis in accordance with the Placer County Tree Ordinance;  coordination with the California Department of Fish and Wildlife to develop an approved western pond turtle relocation plan; surveying riparian plant species and assessing project impact to the riparian habitat; and weekly construction monitoring throughout the dewatering and excavation process to ensure wildlife dispersed from ponds.

NewcastleWWTP_01

Biologists conducted weekly construction monitoring throughout the dewatering and excavation process to ensure wildlife dispersed from ponds.