Introduction of First Water, Commissioning & Initial Operation Sample Clauses

Introduction of First Water, Commissioning & Initial Operation. On completion of planting, the wetland shall be flooded to an average depth of 50 mm with ‘clean water’, from an approved source (eg settled minewater, local stream, canal or other waterway), subject to the acquisition of any appropriate permits by the Contractor and to the approval of the Contract Administrator. After a period to be agreed with the Contract Administrator, and provided the plants are in good health, the first water shall be replaced by the iron contaminated discharge entering the wetlands via the inlet structure. Xxxx boards at connecting and outlet channels shall be adjusted to maintain the initial 50 mm water depth. When the plant growth is sufficient so that 30% of the vegetation growth is above the water level, the water depth shall be incrementally increased to the final depth of 300 mm, or the design depth, depending upon the specific requirements shown on the contract drawings. Raising of water levels in the wetland ponds, to the final depth required, shall take place over a period of not less than three months. Routine operation will commence once the normal operating depth has been achieved Commissioning of the wetland shall be deemed to have been completed once the minewater has been successfully diverted through the planted wetlands, and the planting is continuing to demonstrate satisfactory growth at the final operational level of the wetland.