Patent ID: 7780855

Claim:
A method for pre-engineering a system for environmental control of storm water, comprising: providing a selection of control structure members having various flow capacities, wherein the selection comprises a control structure member comprising: a housing containing an upstream control chamber and a downstream control chamber separated by a partition, a first opening into the upstream control chamber for receiving an inlet pipe, a second opening into the downstream control chamber for receiving an outlet pipe, an exit from the upstream control chamber for connecting a first pipe, and an entrance into the downstream control chamber for connecting a second pipe; providing a selection of interceptor structure members having various treatment capacities wherein the selection comprises an interceptor structure member comprising a housing containing an upstream interceptor chamber and a downstream interceptor chamber, whereby a combination of various pairs of said control structure members and said interceptor structure members becomes available; selecting a control structure member and selecting an interceptor structure member from said combination of pairs; installing said selected control structure member; installing said selected interceptor structure member; connecting the first pipe between the upstream control chamber of the selected control structure member and the upstream interceptor chamber of the selected interceptor structure member; and connecting the second pipe between the downstream control chamber of the selected control structure member and the downstream interceptor chamber of the selected interceptor structure member, whereby passage of fluids from the upstream control chamber of the selected control structure member to the downstream control chamber of the selected control structure member by way of the selected interceptor structure member is enabled.