2016 CASQA Award Winner - BMP Implementation Category: Implementation of the City of Sacramento LID Standards at California State University, Sacramento: A Local Project with Regional Intent
In 2014, the City of Sacramento and the Office of Water Programs at California State University, Sacramento (Sacramento State) began plans to build and monitor facilities that meet the city’s Low Impact Development (LID) standards. The project included design, construction and monitoring of multiple LID best management practices (BMPs) and one green street on the Sacramento State campus. The main project objective was to help reduce campus stormwater runoff volumes and pollutants loads discharged to the to the American River using LID standards developed for the latest edition of the Sacramento Stormwater Quality Partnership (SSQP) Stormwater Quality Design Manual. In addition to reducing pollutant loads, this project was intended to encourage implementation of LID practices throughout the Sacramento region, thereby protecting beneficial uses and improving water quality within multiple watersheds. Accordingly, several outreach activities were conducted to inform and educate the local public, contractors, and practitioners, as well as practitioners in other jurisdictions of California.
Twenty LID BMPs were installed in the summer and fall of 2015, including bioretention planters, rain gardens, an infiltrating bioswale, roof drain disconnects, and porous pavement. The project also included construction of a green street that transformed a major campus thoroughfare with aging infrastructure into a welcoming route consisting of porous pavement parking, rain gardens, other water-wise vegetative landscaping, heritage tree preservation, and pedestrian- and vehicle-friendly routes. The variety of LID BMPs types and settings (including the green street) have proven helpful in demonstrating several retrofit scenarios for other facilities to mimic on their properties.
The intent of the proposed presentation is to educate the audience on the challenges and lessons learned from this LID retrofit experience, as well as exemplify the collaboration for promoting sustainable stormwater practices such as LID implementation. The project was made possible through contributions from the State Water Resources Control Board Proposition 84 Stormwater Grant Program, the City of Sacramento Department of Utilities (the grant awardee, a member of the SSQP, and a large contributor of matching funds), the Office of Water Programs (OWP) at Sacramento State, Sacramento State’s Facilities Management, Cunningham Engineering Corporation, Urban Rain Design, Dry Creek Conservancy, the County of Sacramento, and other regional stormwater professionals. Outreach activities included hosting a regional LID conference; providing project brochures, signage, a website, and a mobile application; posting online stories and issuing press releases; and presenting the project at various public and professional venues.
This presentation will be directly in line with the conference theme (Stormwater Evolution: Source to Resource), as it involves discussion of capturing and infiltrating stormwater to recharge groundwater supplies. (Prior to this project, campus stormwater runoff was discharged untreated to an adjacent waterway). The project has also strenghtened relationships of regional stormwater agencies and fostered interest in a watershed-scale approach for managing stormwater as a resource. The audience will be engaged by supplementing a power-point presentation with project brochures, videos, and demonstration of the project’s self-guided walking tour application availble for smart phones.