17A.30.050 Surface Mines.
A. For surface mines, the following items must be constructed prior to creating impacts, but no later than three years from the date of site development permit issuance:
1. Permanent/long-term stormwater facilities.
2. Other facilities necessary to control stormwater quality or quantity (such as parking lot pavement).
3. Access driveway/road connecting the operation/processing area to the off-site private or public roads.
B. Construction of additional permanent/long-term stormwater facilities that will not be needed until a later phase in the mining activity, or modifications to the original stormwater facility to accommodate a future phase in the mining activity, shall require the submittal of a new site development permit application. Construction of the additional stormwater facilities or modifications to the original facilities must be completed in the timeframes stated above.
C. The storm drainage controls (temporary swales, temporary berms, etc.) that are necessary to control stormwater runoff in areas being mined must be identified in the Maintenance and Source Control Report. The long-term stormwater pollution controls that are necessary for this continuous, earth disturbing activity must also be identified in the Maintenance and Source Control Report.