LITTLE DIVERSIFIED ARCHITECTURAL CONSULTING, INC.

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STATEMENT OF QUALIFICATIONS UNDERSTANDING OF NEED B. Records Research — If we're going to give you sound, E. professional design advice we need to understand your existing conditions. We'll review available as-builts for the site and using the CADD file provided by the City we'll create layers for existing utilities within our design file that will be helpful when laying out the new mainline routing. It appears that some of the existing routing goes under pavement and very close to large existing trees so it may not be possible to run the new mainline in the exact same location. We've already been to the site and opened several of the valve boxes to confirm what the as -built in the RFP was showing so we can see where it would be advantageous to re-route the new mainline through more wide open lawn areas to avoid existing hardscape and/or large existing shade trees. C. Survey — After careful consideration of the proposed scope, and visiting the site for ourselves we do not believe a complete topographic survey of the site is necessary to complete this irrigation renovation. The proposed scope does not include grading and/or drainage of any kind and we don't forsee changing existing line of grade anywhere. We feel comfortable using the CADD file that will be provided by the City and then making any adjustments needed based on our own field observations and measurements. Again, this allows us keep our fees low while pushing a faster schedule for deliverables. D. Permit — Based on the work described in the RFP, and our understanding of the work to be performed, we don't believe there are any additional permit requirements for this project. Plans, Specifications, and Estimates (PS&E) — As mentioned previously, from a professional point of view, this is rather simple, straight forward type project that doesn't need to be bogged down with extra submittals. Please refer to the itemized scope of work and deliverable list for more info on the construction document phase. For the actual work of designing and laying out a new irrigation system, here are some of the standard "Best Practices" we'll follow in preparing these plans; Establish an isolated P.O.C. with separate backflow preventer, master valve, flow sensor and pressure regulator leading to new irrigation system. The backflow prevents the irrigation system from backing up into the main City system, and allows for the irrigation system to be completely shut- off while keeping the potable onsite water fully operation. The master valve and flow sensor will give your new controller the power to shut the system down and alert you of any potential mainline breaks. We expect that you have good static pressure (85-90 PSI) and a pressure regulator can help deliver the right amount of pressure as needed for each valve. Allowing the system to operate above normal pressure ratings stresses out your fittings and joint connections, wears out your pipe faster, and can cause problems down the road with wear and tear on your new valves and quick couplers. Loop the mainline to reduce friction loss and pipe wear & tear. Route the mainline through existing turf areas to minimize trenching and patching of lawn and protect existing tree canopy in place. • Full Circle radius rotor and spray heads will be placed on their own remote control valves. Half and quarter circle radius rotor and spray heads will be placed on their own remote control valves. Provide shut-off valves along the mainline for ease of isolating portions of the system in the future when repairs are needed. Provide quick coupler valves along the mainline for easier hand watering in the future when portions of the system need to be shut down for repairs or future construction. • Provide pipe sizing for all new mainline and laterals so new irrigation installation can be properly bid. imi CITY OF SANTA ANA: RFP NO: 28-128 CABRILLO PARK IRRIGATION RESTORATION