green infrastructure

Another GI Plan in the Books!


As part of its obligations to regulate stormwater runoff pollutants under NPDES MS4 Phase I requirements, the City of Menlo Park has adopted a Green Infrastructure Plan for Stormwater (GI Plan) that demonstrates a shift from traditional “gray” infrastructure, which channels untreated runoff directly into San Francisco Bay, to a more resilient and sustainable stormwater system that integrates “green” infrastructure strategies. Along with its teaming partners, Lotus helped establish how source control, redevelopment requirements (C.3), green streets, regional capture projects, LID retrofits, and additional City policies can collectively combine to meet runoff capture targets cost-effectively. Dive into the complete document here.

SJ Green Stormwater Infrastructure Goes Public


The City of San José has published a Green Stormwater Infrastructure (GSI) Plan that lays out the approach, strategies, targets, and tasks needed to transition traditional “gray” infrastructure to include GSI over the long term. Lotus Water was integral in developing the plan, which serves as an implementation guide for institutionalizing the concepts of GSI into standard municipal engineering, construction, and maintenance practices. As California’s weather becomes increasingly unpredictable and extreme, GSI strategies can provide the City with enhanced climate resiliency, local water supplies, and energy savings, consistent with the City’s sustainability goals. The GSI Plan is available here for public review and comment until May 15 - take a peek and share your thoughts!

New GI Grant Program is a HIT!


The SFPUC GI Grant Program has launched!  Lotus helped developed the program and will be providing ongoing technical support during implementation.  The first public workshop about the program sold out with over 100 attendees, and the first applicant has already submitted!  The SFPUC aims to award $6M in GI grants during the first two years of the program, with up to $2M max per project. Learn more about the program and how a grant could benefit you!

SF Chronicle Features Civic Center Public Realm Plan

conceptual rendering (image credit: CMG)

conceptual rendering (image credit: CMG)

Lotus has been working on developing sustainable water systems for the Civic Center District area since 2014. More recently, we were on CMG’s team to assist them with developing a comprehensive plan for the public realm area of the Civic Center Plaza, Fulton Street, UN Plaza, garage/Brooks Hall, and adjacent streets. Our piece of this plan included over 100 iterations of complex water balance analyses!

Read more about the this ongoing plan in the San Francisco Chronicle.

Award for Holloway Green Street

The EPA recently awarded the Holloway Avenue Green Street Project with an Honorable Mention as part of its 2018 Performance and Innovation in the State Revolving Fund Creating Environmental Success (PISCES) program. The project (also referred to as the Lake Merced Green Infrastructure project) is located within the Ingleside Neighborhood and is one of eight SFPUC Early Implementation Projects that have been constructed or are currently being constructed as part of Sewer System Improvement Program. Completed in 2017, the project converts a nine-block stretch of an urban residential street and important bike route into a high-performing green street that also provides pedestrian and bike safety improvements. Parking lanes were reconstructed with pervious concrete pavement to manage roadway runoff and bioretention was incorporated into new corner bulbouts and sidewalk planters to manage sidewalk runoff while also adding greenery along the corridor. The new green infrastructure measures will remove approximately 1 million gallons of stormwater each year from the City’s combined sewer system.

Lotus Water led the planning, stormwater modeling and preliminary design of this project. Additionally, we are providing post-construction performance monitoring and analysis and performing maintenance inspections.

Read more about the PISCES award here!

Green Infrastructure Scores at WEFTEC

WEFTEC (Water Environment Federation's Technical Exhibition and Conference) is recognized as the largest conference of its kind in North America and offers water quality professionals from around the world with innovative water quality education and training. With the host city’s bustling French Quarter as a backdrop, Lotus’ Robert Dusenbury, along with the former King County Combined Sewer Overflow (CSO) Program Manager John Phillips, were selected to present on a new Green Infrastructure (GI) Project Scorecard developed collaboratively by Lotus Water, Herrera, and EcoNorthwest. The scorecard evaluates GI projects to determine when investment in GI is an appropriate part of the solution within a particular CSO basin. Over 100 project characteristics can be entered and evaluated to first determine the cost-benefit ratio of a GI project alternative compared against the baseline grey alternative within each basin, then both quantitative and qualitative additional benefits are stacked on top of that baseline comparison to determine when a GI concept should be carried forward for further development and evaluation. The framework of the tool is flexible and can be adapted to the priorities and values of other areas to comprehensively evaluate sustainable infrastructure in areas with complex environmental, cultural, and resiliency priorities like New Orleans.