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June 30, 2022 <br />Mr. Luke Hill <br />Archer Western Construction <br />Project Manager <br />1411 Greenway Drive <br />Irving, Texas 75038 <br />(Transmitted via Email) <br />PLUMMER <br />Reference: City of San Marcos Surface Water Treatment Plant Improvements Project <br />Change Proposal No. 002 - Upgrade to Aluminum Conduit <br />Dear Mr. Hill, <br />As defined in Article 7.02 of the General Conditions of the above referenced project, an adjustment in <br />Contract Price for the following Change in the Work is requested. This item has been added to the change <br />proposal log to record the anticipated change in Contract Value. <br />A. Submittal SD -013 — Raceways and Boxes, submitted by Archer Western Construction, included <br />Rigid Galvanized Steel Conduit (RGS) for all above grade electrical piping. Specification item 26 <br />05 33, Section 2.2.A allows for RGS conduit; however, RGS does not meet current GBRA <br />Standards and Design Guidelines. GBRA Standards and Design Guidelines require all exterior <br />exposed/above ground conduit to be aluminum rigid. GBRA is requesting a formal change proposal <br />from Archer Western to provide aluminum rigid conduit for all exterior exposed/above ground <br />conduit in lieu of galvanized conduit to match existing conduit at the plant, improve corrosion <br />resistance and longevity, and meet GBRA Design Standards and Guidelines. <br />In accordance with Article 7.02 this request has been identified as Change Proposal No. 002. <br />CONTRACTOR to provide additional supporting data for the OWNER's review. Supporting data shall <br />include full and detailed accounts of materials to .be incorporated into the work; labor and equipment <br />necessary to incorporate the materials; and additional costs as outlined in Article 7. <br />Provide pricing on the above items for the Owner's consideration for inclusion in a Written Amendment or <br />Change Order to the Contract. This letter and/or attachments are not a Change Order, or Change Directive <br />or Field Order and does not constitute a change in completion dates as defined in the Contract. Continue <br />with all work as required by the Contract. <br />If you have any questions, please contact me at (210) 510-1278. <br />Sincerely, <br />\i <br />Jesse Guerra, Jr., P. E. <br />Construction Management Team Leader <br />cc: Jakob Peetz, City of San Marcos <br />R. Brian Perkins, GBRA <br />Hannah Leppla, PE, Plummer <br />