site water balances for peak and low requirements water re-use and recycle requirements water withdrawals constraints, including volume and source use in normal and dry weather pumping capacities requirements to meet current and future production needs planned volume and quality of discharge segregation requirements for clean and contaminated flows contaminated flows treatment program waste water volume usage and quality and how and where to store for treatment then discharge groundwater sources protection requirements existing neighbour water usage and discharge considerations surface water resources control requirements quality and potential of ground water regime protection measures, including local wells and surface water sources) testing management system for discharge waters, in accordance with legislative, organisation and site requirements and procedures contingency plans for flood routing of waters in pit's operational area covering peak flows pumping of waters from flooded pit, settlement ponds, holding dams or sump pits engineering detail for construction of table drains, culverts, channels, pipe works, trenches, manhole, gully pits as part of surface drainage and total reticulation network water flow, pipe laying techniques and earthwork activities associated with drainage and rural road geometry work pits development ongoing maintenance work for the drainage scheme of the quarry site, including pit works, roadways, administration areas and boundary conditions site drainage and waste water treatment processes monitoring requirements recording of the quality of site drainage effluent to meet environmental and company requirements water treatment systems design |