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6 <br /> Exhibit A - Description of Changed Work <br /> 1. Work Change Directive 001 — Revise Specification 15121 2.02 PIPE COUPLINGS FOR <br /> STEEL PIPE. ($0.00/0 Days) <br /> 2. Work Change Directive 002 — Prior to placing fill in the amphitheater area provide a toe drain <br /> system. ($5,448.11/ 0 Days) <br /> 3. Work Change Directive 003 — Revise electrical duct bank conduit sizes. ($38,756.69/0 Days) <br /> 4. Work Change Directive 004— Delete jet grout from the 60-inch & 72-inch drain line and <br /> injection points identified as 15, 16, 32 and 33 on the Stellar .l Grout Submittal 579-007-1 and <br /> add six grout columns to support the 84-inch hot tap location. (-$133,946.77/0 Days) <br /> 5. Work Change Directive 007 — Remove the existing manhole cone section from the manhole at <br /> the south end of the new wash water pipe and install seven feet of riser and a flat top lid. <br /> ($16,209.14/2 Days) <br /> 6. Work Change Directive 008 —Accept 75 psi rated butterfly valves versus specified 150 psi <br /> rated. (-$24,758.00/ 0 Days) <br /> 7. Work Change Directive 009—Remove and replace Wash Water manhole channel. <br /> ($3,833.88/0 Days) <br /> 8. Work Change Directive 010 —Add communication modules to Allen Bradley SMC Flex <br /> Starters in MCC-HC. ($1,513.61/0 Days) <br /> 9. Work Change Directive 011 —Provide and install four restrained flex couplings two at each end <br /> for the installation of the 30" rerouted backwash pipe.($14,756.10/0 Days) <br /> 10. Work Change Directive 012—Clearwell No. 2 concrete clearance & coating clarification. <br /> ($0.00/0 Days) <br /> 11. Work Change Directive 013 —Revise Clearwell baffle columns. ($0.00/0 Days) <br /> 12. Work Change Directive 014—Revise Clearwell No. 2 drain from PVC to DIP and add a 10" <br /> butterfly valve. ($10,942.74/0 Days) <br /> 13. Work Change Directive 015 —Revise Clearwell floor slope. ($0.00/0 Days) <br /> 14. Work Change Directive 016—Revise door 505 door hardware. ($0.00/U Days) <br /> 15. Work Change Directive 017 —Increase the size of the Backwash Pump Station roof <br /> hatches.($3,418.82/0 Days) <br /> 16. Work Change Directive 018 — Accept submitted vertical turbine pump motors with WPII <br /> versus TEFC motor windings. (-$8,520.00/0 Days) <br /> 17. Work Change Directive 019—Increase Clearwell No. 2 slab-on-grade reinforcing from#5 to <br /> #7 in the ring slab sections 23 and 27 and the slab-on-grade sections 102, 103 and 104. <br /> ($9,327.03/0 Days) <br /> 18. Work Change Directive 021 —Pot hole existing 84-inch FW pipe to confirm the flex coupling <br /> is restrained. Expose and make repairs to the leaking 84-inch FW pipe north of the Clearwell <br /> No. I Control Structure. ($33,829.88/0 Days) <br /> 19. Work Change Directive 023 — Provide all pumps and motors with food grade lithium based <br /> grease. ($2,203.13/0 Days) <br /> 20. Work Change Directive 024—Clarifications and revision of water quality analyzers. <br /> ($3,169.82/0 Days) <br /> 21. Work Change Directive 025 — Weld 3/4" thick by 4"wide rolled bar on the existing 84"TW <br /> pipe west of Clearwell No. 1 to allow flex connection installation. ($3,395.96/0 Days) <br /> 22. Work Change Directive 026— Install 8" depth of crushed rock aggregate base under the <br /> Backwash Pump Station footings and slab-on-grade. ($6,725.82/0 Days) <br /> Fag 3 of 6 <br />