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(D City of Santa Ana <br />On -Call Engineering Services (RFP No. 23-030) <br />notifications, records research and field review for ADA accessibility and compliance, <br />topographic survey, and preparing PS&Es. REFERENCE: Stephanie Camorlinga, <br />Engineering Associate, scamorlinga@cityofalhambra.org <br />Los Angeles County Metropolitan Transportation Authority Division 4 <br />Permeable Concrete Pavement Pilot Project, July 2015 - February 2019 <br />This project is the recipient of the 2019 ASCE MLAB Outstanding Sustainable <br />Engineering Project award. CWE designed PCP and a bioretention facility for <br />LA Metro at their Division 4 non -revenue facility in Downey. The project facility <br />is a total of 251,000 square feet. An impermeable pavement area of 39,000 <br />square feet was converted to pervious concrete pavement. The bioretention facility <br />captures flows exceeding the 851h percentile event, and provides additional storage and <br />infiltration capacity. During large storm events, flows exceeding the capacity of the PCP and <br />bioretention facility are routed to an existing infiltration trench within the site and ultimately <br />discharge into the Rio Hondo. The project benefits LA Metro by significantly reducing <br />discharge, improving water quality, and addressing the Los Angeles River Bacteria, Metals, <br />and Total Maximum Daily Loads (TMDLs). Tasks included: development of design <br />parameters including stormwater retention requirements and rainfall data; design of pervious <br />concrete pavement and retention basin, overflow swale, hand monitoring wells; development <br />of construction plans, technical specifications, and a construction cost estimate. <br />REFERENCE: Not Available <br />US rmy Corps of Engineers (USA E) Dulzura Brown Field Border Patrol <br />Station, September 2017 - Present <br />As part of the ultimate civil engineering design, CWE is preparing Caltrans <br />format improvement plans for the widening of Highway 94. The highway <br />widening is needed to accommodate accel e ratio n/dece I eration lanes into the <br />enLrance0I Me OLaUon. I asks include: developing road i prove enL plans, <br />traffic control plans, signing and striping plans, sewer design plans, and storm drain <br />PS&Es for approval from Caltrans. The ultimate design includes designing improvement plans <br />for the installation of the water well pump, mechanical piping, water treatment (filtration, <br />disinfection), and electrical power/controls for the pumps; designing tank piping and valves; <br />developing a site Stormwater Pollution Prevention Plan (SWPPP); preparing onsite sanitary <br />sewer plans for the collection of wastewater from each of the facility buildings; preparing <br />plans for the treatment and disposal of wastewater flows; drilling a pilot test water well and <br />checking pumping capacity (yield tests) of the groundwater aquifer. CWE tested water quality to <br />assure potable water met or exceeded San Diego County and State of California water quality <br />standards. REFERENCE: Karl Ahlen, Client Project Manager, karl. t. ahlen @usace. army. mil <br />Willingness to Comply with Agreement Terms <br />CWE takes no exceptions to the sample master service agreement. <br />References <br />Please refer to the "Relevant Projects" subsection on pages 8-10 above for references for <br />relevant projects for public entities we have performed similar work for within the past five years. <br />C P.M. <br />WE <br />