and detail drawings. Refer to the Landscaping Planting Plan drawings for details on the planting strategy for SWM Pond 5.

A geotechnical and hydrogeological investigation was completed during the 60% design stage to confirm liner requirements, entitled Estimates of In/Outflows – Stormwater Management, Fish Habitat Compensation Ponds and Realigned Drains (PIE/AMEC, 2012). The report indicates the pond is in contact with the Upper Granular Deposits and is expected to gain water during wet periods, and lose water during dry periods. Accordingly, an impermeable liner system will be required for Pond 5.

To ensure that the SWM pond continues to operate as designed, a pond maintenance plan should be developed for routine maintenance of the facility and should include:

9.5 Erosion and Sediment Control (During Construction)

An Erosion and Sediment Control Plan will be developed by PIC and submitted under separate cover.

10 Conclusions

This report documents the detailed design SWM plan and drainage design for the section of The Parkway that is contributing flows to the Marentette Mangin Drain sub-watershed. The PDR SWM plan developed in support of the PDR was used as the basis and was further refined by integrating hydraulic, hydrologic, highway, structural and environmental design considerations to meet the requirements of the Project Agreement. Stakeholder agencies were consulted to ensure that the detailed design meets the current policy requirements and concerns associated with the Marentette Mangin Drain. In view of the objectives stated in Section 4.1, the following conclusions are provided: