§ 24.20.150. Frequently flooded areas—Stormwater retention, treatment, and conveyance facilities.

Latest version.

A.

Maintenance and repair of existing stormwater retention, detention, treatment, and conveyance systems is permitted.

B.

New stormwater facilities and swales proposed to store, treat and/or convey stormwater may be constructed consistent with the Drainage Design and Erosion Control Manual for Thurston County, as amended (Chapter 15.05 TCC), and Chapter 24.25 TCC.

C.

Temporary sediment ponds are allowed in the RDZ associated with high ground water hazard areas between March 16 and October 31. Temporary ponds may be located in other flood and channel migration hazard areas during this same time period if they comply with Chapter 24.25 TCC.

(Ord. No. 14773, § 3(Att. B), 7-24-2012)

                    
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