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CBI Proposal 2334 -Coating Inspection Services Three Tank Rehabilitation Project SERVICES City of Pleasanton Page 6 when production includes abrasive blast cleaning or substrate blow-down procedures. This will be accomplished in accordance ASTM D4285. c. Ambient Conditions — The CSI inspector will monitor ambient conditions in accordance with ASTM E337 to assure that final blast cleaning and coating application operations are not completed outside the specified requirements. d. Surface Preparation — The CSI inspector will examine the abrasive and equipment used for surface preparation for adequacy to do the work, as specified. Equipment pressures will be monitored. The inspector will verify proper storage and size of abrasives, and that the proper degree of cleaning and surface profile or scarification is achieved. e. Coating Preparation and Mixing —The CSI inspector will observe the mixing of coatings to assure that all components are added and proportioned correctly and that any induction times are maintained. The inspector will verify that any materials used are approved and that they are not used when the pot or shelf lives have been exceeded. f. Coating Application — The CSI inspector will examine the application equipment for cleanliness and adequacy to do the work. The inspector will observe application techniques to assure proper coverage without detrimental runs, pinholes, or other visually evident deficiencies. The inspector will make spot checks of the wet film thickness in accordance with ASTM D4414 so that adjustments to the amount of material being applied can be made at the time of application to minimize the amount of rework after the coating has dried. g. Dry Film Thickness—The CSI inspector will measure the dry film thickness of each coat to assure that it complies with the specification requirements and manufacturers' instructions. Film thickness will be monitored using a Type II film gage in accordance with ASTM D1186, SSPC-PA2, or as required (i.e. every 100SgFt). h. Holiday Detection — CSI will witness holiday detection and confirm performance of 100 percent holiday detection in accordance with NACE International's "Recommended Practice for Discontinuity(Holiday)Testing of Protective Coatings," (RP 0188-99), AWWA D102, and the specified requirements. i. Cure Evaluation — The CSI inspector will evaluate the final cure of the applied lining in accordance with the Manufacturer's recommended procedures, and or ASTM D5402, as required. j. Final Inspection — The CSI inspector will perform a final inspection to evaluate the Contractor's final product. This will verify that the final visual April 27, 2019