Laserfiche WebLink
CSO). Also review the precipitation data used for City specific climate sensitivity <br /> as developed by the University of Washington (4.78 inch, 24-hour depth, Type <br /> 1A distribution). <br /> c. Review InfoSWMM model inputs and outputs specific to Scenario 3 (from BHC <br /> model report). <br /> d. Perform model simulations to confirm infrastructure sizing and preferred <br /> operational strategy as cited above. This includes running simulations with and <br /> without the SRO8 regulator changes. Review conveyance hydraulic capacity <br /> constraints upstream and downstream of the proposed CSO facility. <br /> e. Provide feedback on system hydraulic performance relative to the options <br /> analysis in other tasks. <br /> f. Conduct up to two 2-hr meetings with City staff to discuss model inputs, <br /> operational strategies, and modeling results for the Phase 1 Engineering analysis. <br /> g. Develop a draft and final Tech Memo documenting the model evaluation and <br /> recommendations <br /> Deliverables: <br /> • Agenda and meeting notes <br /> • Model evaluation tech memo, draft and final <br /> 250—Geotechnical Review <br /> Assumptions: <br /> • This review is a table top/existing documentation review, used primarily to <br /> evaluate geotechnical conditions that could impact the 3 CSO construction <br /> options evaluated in Task 270. <br /> • Review will be conducted for the project area identified in Exhibit A-1. <br /> • The review of the Environmental Data Resources (EDR) reports will only include <br /> the EDR regulatory lists and will not include aerial photographs, Sanborn maps, <br /> and research of orphan sites. <br /> The Consultant shall perform the following: <br /> a. Research all existing geotechnical data in the vicinity of the project area. Existing <br /> data available from the City or other public records may include geologic maps, <br /> fault maps, photographs, existing construction records, topographic drawings, <br /> boring logs, well logs, and dewatering records. <br /> b. Review selected section of the (EDR) reports for potential environmental (i.e. <br /> contaminated or hazardous) locations in the project area, including Dept. of <br /> Ecology website information on the Smith mill site cleanup. <br /> 81Page <br />