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FUGRO WEST, INC. <br />March 17, 2015 <br />Proposal No. 04.7214027 <br />Carollo Engineers <br />2700 Ygancio Valley Road <br />Walnut Creek, California 94598 <br />Attention: Mr. Zaheer Shaikh <br />�GRO <br />1000 Broadway, Suite 440 <br />Oakland, California 94607 <br />Tel: (510) 268-0461 <br />Fax: (510) 268-0545 <br />Subject: Proposal for Additional Services, Water Quality Assessment, WCPC Contaminated <br />Soil Relocation Project, San Leandro Water Pollution Control Plant, San Leandro, <br />California <br />Dear Mr. Shaikh: <br />Fugro Consultants Inc. (Fugro) is formally requesting an amendment to our existing Task <br />Order No. 1. During the meeting with Vic Pal of the SF RWQCB on February 26, 2015, we <br />understand that the RWQCB would like the City of San Leandro to provide water quality data in <br />the vicinity of the proposed soil relocation area. To assist in this regard, the City and Carollo staff <br />confirmed the location of two monitoring wells which were installed in 1999 near the soil relocation <br />area. We understand that there is a desire to determine whether the wells can be used in <br />collecting representative water samples and if so, would the RWQCB accept data from these <br />wells. <br />Fugro will visit the Site and open the two identified wells to observe casing conditions and <br />to measure water levels. We will then purge up to 3 well casing volumes of water from the wells. <br />Purged water will be stored onsite in a drum to be located near well MW -4. Once the water has <br />been purged, we will monitor the rate of recharge of the two wells. We will also attempt to locate <br />the two additional wells which were also installed in 1999. <br />Fugro will discuss our findings with the City and Carollo staff in a teleconference call. If <br />the wells appear to be sound, Fugro will develop a simplified plan of action to obtain and test <br />samples from the wells. The plan of action, along with recently collected field data, well logs, site <br />map, and rate of recharge for the wells will be presented in a Technical Memorandum which can <br />be submitted to the RWQCB for their review. Fugro will attend one meeting with the City, Carollo <br />staff and Vic Pal to discuss the proposed plan of action and our findings. A breakdown of the cost <br />is presented below. <br />Planning and Supply Ordering <br />750 <br />Well Condition Evaluation and Purging <br />3,300 <br />Field Data Evaluation and Consultation <br />1,300 <br />Tech Memorandum and RWQCB Meeting <br />2,000 <br />Total <br />7,350 <br />A member of the Fugro group of companies with offices throughout the world. <br />