8-03 25-205-B Attachment A - PWAS Holding Tank As-Builts.pdf

This file contains as-built construction drawings for PWAS (Post Water Aerating Systems) Holding Tank and Blend Tank Mixers, produced by Arcadis for the North Texas Municipal Water District's Floyd Branch BWTP (Backwash Water Treatment Plant) Process Optimization Improvements project (Project No. 25-205-B). The drawings show detailed architectural and engineering plans including foundation plans, basement level plans, overall sections, lower plans, enlarged plans, and various cross-sections of the wash holding tank and ballast mix tank systems, along with associated piping, mechanical systems, and instrumentation layouts.

The drawings include comprehensive technical specifications for concrete protective coatings, limestone concrete walls, polymer skids, spray nozzles, access hatches, emergency eyewash/shower stations, and various tank components with detailed measurements and elevation markers. The plans show integration with existing infrastructure including connections to solids dewatering facilities, operation basin influent boxes, and secondary clarifier systems, with specific attention to mechanical equipment placement, piping configurations, and structural elements required for the water treatment facility upgrades.