Project Overview: EV171
This project will improve water quality in Lake Whatcom through the retrofit of an existing stormwater treatment facility on Northshore Drive near Donald Avenue. Work along Donald Avenue east of Northshore is possible.
The project was awarded a grant by the Department of Ecology (DOE). The project design and construction phases are funded with State funds (75%) and local funds (25%) through this DOE grant which expires June 30, 2025.
This project will reduce total suspended solids (TSS), dissolved Copper and Zinc, and total phosphorus by replacing the existing sand filter with media designed to maximize phosphorus removal.
Lake Whatcom currently has a Total Maximum Daily Load (TMDL) plan for total phosphorus and bacteria. This project is identified as a priority project in the City’s Lake Whatcom Retrofit Plan in accordance with the Lake Whatcom TMDL Implementation Plan that addresses phosphorus and bacteria pollution.
This project will retrofit an existing, city-owned, stormwater facility with treatment and infiltration systems designed specifically for phosphorus removal. The project is expected to retrofit the existing 7,250 square foot sand filter with City of Bellingham’s Phosphorus Optimized Stormwater Treatment (POST) media, if TAPE approved for GULD use (anticipated July 2021), or another media to maximize phosphorus capture. This project will treat runoff from 27 acres of residential development which currently adds about 24 pounds of phosphorus to the lake annually. If POST media is used, the system is expected to remove approximately 21 pounds of phosphorus annually.
This site is located adjacent to a two-lane road without an easy detour. Work will be planned to minimize impacts to roadway users during construction.
A grant application was submitted to the Department of Ecology (DOE), and the project awarded a grant (WQC-2021-BellPW-00018) through the State Fiscal Year 2021 – Stormwater Financial Assistance Program (SFAP). The project design and construction phases are funded with State funds (75%) and local funds (25%) through this DOE grant which expires June 30, 2025.
Status – November 2022
Accomplishments: Contract for professional services with Pacific Survey & Engineering executed. Site survey and geotechnical exploration was completed. Site specific inflow data collection is currently ongoing.
Next Milestones: Design Report of Preliminary Design.
- Status – Design
- Contract awarded –
- Contract amount –
- Contractor –
- Vicinity Map
Jessica J. Bennett, PE
Phone: (360) 778-7923