Every stormwater treatment practice shall have an acceptable form of water quality pretreatment, in accordance with the pretreatment requirements found in the Current Stormwater Design Manual. Certain stormwater treatment practices, as specified in the Stormwater Design Manual, are prohibited even with pretreatment in the following circumstances:
(A) Stormwater is generated from highly contaminated source areas known as hotspots.
(B) Stormwater is carried in a conveyance system that also carries contaminated, nonstormwater discharges.
(C) Stormwater is being managed in a designated groundwater recharge area.
(D) Certain geologic conditions exist (e.g., karst) that prohibit the proper pretreatment of stormwater.
(Ord. 2006-10, passed 11-27-06)