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_ City of Santa Ana On -Call Stormwater Project Design Services RFP No.: 20-102 capture area (originally 400 acres) to maximize water quality benefits while remaining compliant with grant terms. The system has a single storm capture capacity greater than 24 acre-feet. CWE assisted the City in obtaining over $12 million for construction and coordinating with a local stakeholder to provide additional financial support. The City also used a Proposition 1 grant to fund design efforts. The City ultimately paid approximately $300,000 for $15 million worth of implementation. Above -ground park improvements proposed as part of the project benefit the surrounding Disadvantaged Community (DAC), which helped secure the abovementioned funding. Tasks included: utility and community coordination; developing a preliminary design report emphasizing a gravity system as the best alternative to meet City needs; performing environmental studies that meet California Environmental Quality Act (CEQA) requirements; obtaining Los Angeles County Flood Control District (LACFCD) permits; providing topographical surveys; conducting a geotechnical investigation; developing a plan for landscape and irrigation improvements; preparing a hydrologic and hydraulic study; providing potholing services; preparing Plans, Specifications, and Estimates (PS&Es); preparing an Operations and Maintenance (O&M) manual for proposed structural stormwater BMPs, pretreatment devices, and stormwater infiltration system; and providing bid and construction support. Additional design services included 2,500 lineal feet of roadway reconstruction, including Americans with Disabilities Act (ADA)-compliant ramps; 4,500 lineal feet of new storm drain used to maximize capture, and 6-inch sewer reconstruction. Contact: Kenneth Jones, Management Analyst, (818) 898-1240, kjones@sfcity.org City of Santa Monica Los Amigos Park Stormwater Harvesting and Direct Use Demonstration This project was the recipient of the 2017 California Stormwater Quality Association (CASQA) Outstanding Stormwater Sustainability Project, ASCE Outstanding q Small Project, and the Storm Water Solutions Top Stormwater and Erosion Control Project Awards. CWE designed a demonstration project that taps into an Year Completed: 20existing storm drain line running along a school athletic field and the City of Santa Monica's Los Amigos Park, routes stormwater and dry -weather flows from the storm drain through a vortex system using a diversion structure into a subsurface water -tight cistern, treats the stormwater and dry -weather runoff with an Ultraviolet (UV) treatment system, and delivers highly treated water to the park irrigation system and indoor plumbing for toilet flushing. The project's purpose was to demonstrate the feasibility of harvesting local water resources, including storm drain flows, to decrease potable water use, reduce polluted urban runoff discharge to the receiving water body, and protect the future of California's water supply. CWE designed a UV treatment train system that treats approximately 80 gallons per minute (gpm). A jack -and -bore approach was also designed and implemented to reduce construction disturbance within the street. Tasks included: developing a project study report; conducting a geotechnical investigation and utility search; preparing Plans, Specifications, and Estimates (PS&Es); coordinating with the Los Angeles County Flood Control District (LACFCD); obtaining regulatory approvals from the California Coastal Commission (CCC), Department of State Architect (DSA), and the Los Angeles County Department of Public Health (DPH); performing public education and outreach; providing construction support; preparing a Sampling and Analysis Plan (SAP); assisting the City with report preparation; and designing educational signage. Contact: Carlos Rosales, Civil Engineering Associate, (310) 456-8721 Ext. 2620, carios.rosales@smgov.net I" GE.