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Exhibit A <br />April 2, 2018 <br />Mr. Mike Lopez <br />City of Santa Ana <br />20 Civic Center Plaza <br />Santa Ana, CA 92701 <br />Subject: Proposal for Thornton Park Lake Temporary Repair Consulting Services <br />Dear Mr. Lopez: <br />Thank you for giving us the opportunity to submit our proposal to assist the City of Santa Ana in the <br />necessary temporary repairs for the Thornton Park Lake. The Dudek team is poised to assist the City <br />will all of their lake consultation needs. <br />Project Understanding and Approach <br />We understand the City has drained down the Thornton Park Lake in an effort to identify and repairs <br />leak in the lake wall. During the drain -down it was determined that the lake liner system is in poor <br />condition and is in need of rehabilitation. It is thought that the saturated soils along the lake edge in <br />the vicinity of the southerly portion of the lake could be due in part to leakage through the lake bottom <br />liner as well as through the lake edge wall. Dudek observed the area of the leak and condition of <br />exposed portion of the lake wall and bottom liner on March 27, 2018. Due to the very poor condition <br />of the PVC lake bottom liner, we recommended that the City implement a temporary repair to the lake <br />wall and a portion of the lake bottom to mitigate the saturated soils condition and address the overall <br />lake liner condition in a separate lake rehabilitation project. In our opinion, the existing liner system <br />has performed beyond its service life and has expired, and is in need of complete rehabilitation. <br />Scope of Services <br />Dudek will provide general lake repair consultation consisting of developing design detail drawings <br />and specifications for a contractor to construct a temporary repair in the southerly portion of the lake <br />edge. Dudek will attend project meetings, site meetings, and participate in conference calls as <br />requested by the City to provide guidance and consultation on the repair. <br />Fee <br />Dudek proposes a Time and Materials (T&M) fee not to exceed $3,600.00. This fee allows for a <br />maximum of 17 man-hours to provide the services described above to the City. <br />We appreciate the opportunity to submit this proposal and we look forward to assisting the City with <br />this project. If you have any question or wish to discuss our proposal please contact me at <br />949.212.0916 orjsmith@dudek.com with any questions about our proposal. Thank you. <br />Sincerely, <br />MOM <br />