Specifications include, but are not limited to: The City of Burlington Department of Public Works is seeking agreements with qualified and licensed contractors to provide services required to complete work associated with the Burlington East Wastewater Treatment Facility (WWTF) Outfall Repair Project. This work includes: the replacement of approximately 10 linear feet of 24-inch ductile iron outfall pipe and 19 linear feet of 12-inch ductile iron drainage pipe directly adjacent to the Winooski River. Both pipes are part of the Burlington East WWTF infrastructure and will be fitted with restrained couplings or cast-in-place concrete collars. Installation of temporary chain-link fencing and fence gates shall be used as necessary throughout construction to maintain security of the wastewater treatment facility. Use of erosion control measures should be expected, including but not limited to turbidity curtains, erosion control matting, geotextile filter fabric, riprap slope protection, stone check dams, and mulch anchoring. Construction disturbance is to be minimized and the restoration and/or revegetation of the surrounding forest and wetland areas disturbed by construction will need to occur through coordination with the owner and the Winooski Valley Park District. The selected contractor shall provide a comprehensive one (1) year warranty on workmanship from date of final acceptance by the City and provide a certificate of manufacturer’s warranty on the pipe, fittings, and coupling materials.; 1. Effluent and Stormwater Outfall Rehabilitation: a. Wastewater treatment facility treated effluent outfall repair; b. Removal and disposal of existing effluent piping as shown on drawings; c. Storm drain outfall repair (BID ALTERNATE A); d. Removal and disposal of existing storm drain piping as shown on drawings (BID ALTERNATE A); e. Existing flow management/ bypass pumping for rehabilitation of the effluent outfall; f. Rebuilding and stabilization of the bank; g. Testing of outfalls for proper installation and performance.; 2. All related site work including trench excavation, groundwater dewatering, disposal of excess excavated materials, filter fabric, bedding, backfill, compaction, plantings, slope stabilization, loam/seed and landscaping.; 3. Other miscellaneous work shown in the Specifications for a complete and operational system.
