AD. ID 22-1258 Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation, authorizing the approval of a third amendment to a Professional Services Agreement between the City of Denton and Luminant Energy Company, LLC, amending the contract approved by the City Manager on April 13, 2018, in the not-to-exceed amount of $50,000.00; amended by Amendments 1-2 approved by City Council and Purchasing; said third amendment to continue to provide Compressed Natural Gas (CNG) for all City of Denton Fleet vehicles; providing for the expenditure of funds therefor; and providing an effective date (File 6795 - providing for an additional third amendment expenditure amount not-to-exceed $85,000.00, with the total contract amount not-to-exceed $259,500.00).