Written By Tammy Kennon
Photographed by Puget Sound Conservation Districts
Squalicum Creek just got a little cleaner. A new rain garden carved out of two parking spots at Yeager’s Sporting Goods in Bellingham will filter pollutants out of more than 70,000 gallons of stormwater annually, sending clean, naturally filtered water into the creek.
Squalicum Creek flows into Bellingham Bay, part of the complex system of water bodies known collectively as Puget Sound, home to orcas, salmon and the giant Pacific octopus – and, unfortunately, the destination of the region’s polluted runoff.
Stormwater, the rain and snow that runs off of roads, roofs and parking lots, represents the single biggest source of pollution in Puget Sound. While a good rainstorm might cleanse our buildings and streets, the runoff sends toxins, sediment, nutrients and bacteria into our waterways. And there’s a lot of it. An estimated 14 million pounds of chemical pollutants run into Puget Sound annually, threatening wildlife, fish and people. Research has shown that this toxic runoff can kill adult salmon in less than three hours.
Bringing nature back into our cities helps purify otherwise polluted runoff using nature’s own filtering system. An acre of green space serves a dual purpose, sending only 208,000 gallons of clean runoff into waterways and at the same time replenishing vital groundwater with 311,000 gallons annually. By contrast, a single acre of paved surface, the size of a 150-car parking lot, sends a million gallons of polluted runoff into Puget Sound every year.
The good news is that even small green spaces, such as the two parking spots at Yeager’s, have an impact.
With funding from Boeing and The Nature Conservancy, the Puget Sound Conservation Districts (PSCD) created a Stormwater Action team to leverage the skills and resources of the region for districts that don’t have the capacity or experience to implement stormwater projects on their own.
“Through this team, which is made up of local leaders partnering across Puget Sound, we suddenly have a very big reach and can replicate top programs in the region,” said Kate Riley, a Community Engagement Program Manager in the Snohomish Conservation District. “The city of Bellingham wanted to try a pilot depave case.”
Yeager’s was identified as a high-impact site for depaving, because of the size of the parking lot and its proximity to the creek. And, it also helped that the owner grew up fishing Squalicum Creek.
“The area here has a special place in my heart,” Yeager’s owner John “Westy” Westerfield told the Bellingham Herald. “When we had this opportunity, we couldn’t pass it up.”
Volunteers from Yeager’s staff broke up and removed the asphalt in June, and the rain garden was planted this month with plants that are easy to maintain and tolerant of wet soil.
The Nature Conservancy, working with partners such as Boeing and the Puget Sound Conservation District, continues to mitigate polluted stormwater with projects like the new rain gardens in Bellingham and Tacoma. These successful depave ventures encourage communities to think about where unused pavement can be replaced with nature to energize our waterways and our neighborhoods.
You can learn more about installing a beautiful rain garden in your own yard or neighborhood at City Habitats.