Site work and renovation of a water / sewer project in Innisfil, Ontario. Completed plans call for the renovation of a water / sewer project; and for site work for a water / sewer project.

The Lake Shore Wastewater Treatment Plant (LSWWTP) is located at 1578 St. Johns Road in the Town of Innisfil, Ontario. The plant was constructed in 1987 and has a current rated capacity of 17,000 m3/d. The LSWWTP currently operates at 65 percent of its rated capacity. it is an extended aeration activated sludge treatment system with screening, grit removal, aeration, secondary clarification, filtration and disinfection prior to discharge to Lake Simcoe. The waste sludge is stabilized through aerobic digestion prior to offsite disposal. Expansion Plan: The Town of Innisfil's 2008 Official Plan identified that additional wastewater treatment capacity is required to meet the servicing requirement for future growth. To accommodate this growth, InnServices completed the Class Environmental Assessment (Class EA) for the expansion to the LSWWTP, which recommended a phased capacity increase from 14,300 m3/d (14.3 MLD) to 25,000 m3/d (25 MLD) in the first phase (Stage III) of the expansion, and ultimately to 40,000 m3/d (40 MLD) in the second phase of the expansion (Stage IV). The works proposed for construction under this project are aimed to expand the existing WWTP from the continued use of the extended aeration process to the use of a Biological Nutrient Removal (BNR) process with increased capacity as indicated above. The expanded LSWWTP will include a new headworks building with mechanical fine screens and vortex grit removal, primary treatment; a BNR system for biological phosphorus removal by means of the Anaerobic/Anoxic/Oxic (A2O) process; secondary clarification; tertiary membrane filtration; an ultraviolet disinfection system; and sludge management. PROJECT DESCRIPTION: - Headwork, Flowmeter Chamber, and Septage Receiving Station. - Primary Distribution Chamber. - Primary Clarifiers 1 and 2. - Primary Effluent Distribution Chamber. - Modification to the Existing Bioreactor 1 to 4. - Bioreactor 5 and 6. - Mixed Liquor Splitter Chamber. - Secondary Clarifier 1 to 4 and New Clarifier 5. - Tertiary Building, Process Equipment Building, Chemical Building. - Odour Control System. - Generator, Switch Gear and Sub Station. - Site modification, grading, demo, paving, landscaping, fencing etc. - All other work in accordance with the Contract Documents. Documents can be obtained at: https://innservices.bidsandtenders.ca