The allowable release rate of storm water originating from a proposed development shall not exceed the amount specified in JCC 16.10.080, Storm water control policy, and as described in JCC 16.10.360 and 16.10.370.

In the event the natural downstream channel or storm sewer system is inadequate to accommodate the release rate provided above, then the allowable release rate shall be reduced to that rate permitted by the capacity of the receiving downstream channel or storm sewer system and additional detention as determined by the Board shall be required to store that portion of the runoff exceeding the capacity of the receiving sewers or waterways.

If more than one detention basin is involved in the development of the area upstream of the limiting restriction, the allowable release rate from any one detention basin shall be in direct proportion to the ratio of its drainage area to the drainage area of the entire watershed upstream of the restriction. [Ord. 12-1-97C § 15(C).]