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The Problem:

Sierra At Tahoe Ski Resort is situated on U.S. Forest Service (USFS) land, south of Hwy 50 and east of Twin Bridges in El Dorado County, California. The USFS parcel covers a large area, but the Base Area Plaza project disturbs less than 4 acres. Sierra at Tahoe's improvement project focused on the area next to the main base lodge, including a paving stone plaza, a new 9,000-square-foot structure, and associated improvements.

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The Solution:

Site plans, grading, storm drain, and utility improvements were developed, along with coordination for the structural design of Concrete Masonry Unit (CMU) and rockery retaining walls. Temporary and permanent Best Management Practices (BMPs) were designed to manage stormwater within the project area. A Stormwater Pollution Prevention Plan (SWPPP) was prepared, and permitting was coordinated with regional and state regulatory agencies. The preparation of the SWPPP and obtaining permits through the Regional Water Quality Control Board (RWQCB) were included as part of the project’s design services.

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The Results:

Upon calculating the Risk Assessment R Factor, it was determined that this project was eligible for the waiver. Therefore, the project was not required to be covered under the Statewide General Permit, and a formal SWPPP was not required by the RWQCB. An abbreviated SWPPP was prepared for Sierra at Tahoe to be included in the construction contract. The SWPPP provided guidance to the contractor on how to comply with the County’s erosion and sediment control standards.