A Water infiltration system for total roof runoff shall be required for all new construction, or the roof runoff created by any additional construction. The water infiltration system shall be installed in accordance with New Jersey Stormwater Best Management Practices Manual. The system is to be designed for a total volume of 1.5 inches per square foot of roof area or impervious surface. The infiltration volume must be calculated based on all new impervious cover created by the construction.