What documents must I submit to the City?

Drainage plans shall be prepared and submitted for review and acceptance for all proposed plats and land disturbing activities prior to issuance of any permits for site disturbance, including but not limited to grading permits and building permits. See SMC 17D.060.140(C).

With respect to drainage plans, the volume and rate of surface water runoff after new development shall be no greater than the runoff volume and rate leaving the site prior to development. Drainage Plans submitted for development proposals shall comply with the Spokane Regional Stormwater Manual and the City of Spokane Design Standards. See SMC 17D.060.140(D)(1),(3).