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Proposal Exterior Paint and Structural Retrofit <br />City of Santa Ana -Two Reservoirs <br />February 23, 2004 <br />Stress calculations will verify whether existing static conditions meet current <br />reservoir standards. All seismic design load calculations will be based upon <br />seismic Zone 4, as set forth in AWWA Standard D100-96. <br />C. SCOPE OF WORK -STRUCTURAL/SEISMIC/SAFETY EVALUATION <br />1. Meet with City to verify approach to project for seismic evaluation and safety <br />evaluation. City will supply two copies of all drawings on file to assist in the <br />evaluation. <br />2. Accomplish review of any records relevant to the project. <br />3. Accomplish field investigation of reservoir to verify measurements, physical <br />conditions and other information to determine seismic stress load calculations <br />and structural evaluations. <br />a. Steel plate and component thicknesses for calculation purposes would <br />be determined by measurement with an ultrasonic thickness gage. <br />b. Evaluate condition of attached piping and other appurtenances and their <br />relationship to a seismic event. <br />c. Evaluate condition of foundation as far as is visible above ground. <br />4. Field investigation of interior of reservoir to determine physical conditions and <br />related information to assist in determining seismic stress load calculations and <br />structural evaluation can be accomplished with the reservoirs drained or by the <br />diving method. <br />5. Specific conditions would be noted and included in the report. <br />a. Interior and exterior surfaces will be photographed during investigation <br />and entered into a Photographic Survey album which would be included <br />as a reference point. <br />6. Conclusions, recommendations and cost estimates, based on field observations, <br />measurements, available drawings and records, and corrosion report, would be <br />prepared and included in the report. The report would include recommendations <br />on modifications or replacements to bring reservoir into current structural, <br />seismic and safety codes or standard status. <br />a. It is noted that upgrading of reservoir does not guarantee an <br />indestructible structure. Design, etc. should be based on water industry <br />and existing AWWA Standards, which provides a cost effective design <br />Harper & Associates Engineering, Inc. <br />proposals\SantaAna-2tks 2 <br />