Greener grant, this one for $68,225, was given to Marple Township for a streambank stabilization project on the creek. Additionally, a $1000 grant from the Pennsylvania Watershed Restoration Assistance Program was given to Delco Anglers and Conservationists for riparian improvement of the creek and several other creeks. In 1997, a $60,000 grant was given to the Darby Creek Valley Association and DelCo Anglers and Conservationists for developing a conservation plan. The grant was provided by the Pennsylvania Department of Conservation and Natural Resources. The Darby Creek Valley Association is an organization whose purpose is to preserve and improve the creek's watershed. It has approximately 100 members. Lower Darby Creek Superfund Site In 2001, the U.S. Environmental Protection Agency (EPA) placed Lower Darby Creek Area on the National Priorities List due to contamination from the Folcroft and Clearview landfills. The waste disposal practices at these landfills contaminated the soil, groundwater and fish with hazardous chemicals. In 2011 and 2012, the EPA removed approximately 4,000 tons of soil contaminated with polychlorinated biphenyls (PCBs) and shipped it elsewhere for disposal. In 2014, the EPA selected a remediation plan for the Clearview landfill which called for placement of an evapotranspiration cover over 50 acres of the landfill, relocation of contaminated soil outside the cover to inside, and collection and treatment of leachate from the landfill. In 2016 and 2017, the EPA conducted an additional remediation which involved the removal of approximately 3,000 cubic yards of soil from 33 residential properties due to contamination with PCBs. Implementation of the clean-up plan for the Clearview Landfill began in 2019 and is ongoing. The EPA investigation of the Folcroft landfill and determination of appropriate remediation efforts for that pollution source is ongoing. Local residents are supplied public drinking water and are not drinking groundwater from this location. Biology The main stem of Darby Creek is designed as a Coldwater Fishery and a Migratory Fishery from its source to the Pennsylvania Route 3 bridge. From that point downstream to its mouth, the non-tidal portions of the creek's main stem are a Trout Stocked Fishery and a Migratory Fishery. Numerous fish species were observed in the creek during a 2009 electrofishing survey by the Pennsylvania Fish and Boat Commission. The catch per unit effort per hour rate for smallmouth bass was slightly over 10 and the rate for rock bass was under 10. The catch per unit effort per