Grading and erosion control in Shasta Lake

Shasta Lake's code: Excavation of 200 cubic yards or less (not over 10,000 square feet, not more than two feet deep, that does not create a cut slope that is both greater than two feet in height and steeper than two horizontal to one vertical, and does not change the drainage pattern); fill of 50 cubic yards or less (not over 10,000 square feet, less than one foot deep on terrain flatter than five to one or less than three feet deep, not supporting structures, no drainage change); excavation for basements, footings, pools or retaining walls under a valid building permit that also meets these limits (Only if the work does not affect sensitive habitats, protected trees or cultural resources; erosion control is still required; the building-permit item does not exempt fill on land over ten percent slope or an excavation over four feet of unsupported height; landscape grading on a developed single-family parcel under one acre is also exempt) (§ 15.08.050); A Stormwater Pollution Prevention Plan (SWPPP) is required. (Land disturbance of 1 acre or more, or under 1 acre within a larger common development plan.) (§ 15.08.090).