Climate Resilient Green Infrastructure for the Raritan Basin in New Jersey Project
The Raritan River Basin is approximately 1,100 square miles in size and contains portions of seven counties and 98 municipalities. Based upon a preliminary land cover analysis of the entire basin, the basin contains approximately 140 square miles of impervious cover or 89,482 acres of impervious cover. For the New Jersey water quality design storm of 1.25 inches of rain over two-hours, approximately three billion gallons of stormwater flows across these impervious surfaces. Assuming an annual rainfall of 44 inches, approximately 107 billion gallons of stormwater drains from these impervious surfaces per year. This project will complete impervious cover assessments and reduction action plans for 54 municipalities within the Raritan River Basin. The project will produce a guidance document for municipalities on “How-To” implement green infrastructure strategies to reduce the impact of stormwater runoff from impervious surfaces on water quality. This project will implement climate resilient green infrastructure practices that will treat five (5) to ten (10) acres of impervious surfaces, capturing 68 to 136 million gallons of stormwater annually. More importantly, the project will provide 54 municipalities with plans that contain projects that could treat an additional 50 acres of impervious surfaces in the Basin.(2015) Rutgers Water Resources Program, New Jersey Agricultural Research Station.