We are working on a new 165,000 square-foot building for Vista Community College in downtown Berkeley. The building is on an urban-infill site that is completely built-out to the lot line. The LEED Reference Guide states that the Erosion & Sedimentation Control plan should include the following information: 1. Statement of erosion control and stormwater control objectives. 2. Comparison of post-development stormwater runoff conditions with predevelopment conditions. 3. Description of all temporary and permanent erosion control and stormwater control measures implemented on the project site." 4. Description of the type and frequency of maintenance activities required for the chosen erosion control methods. Regarding Item 1, we believe that the objectives statement for this project should indicate that the only sedimentation/erosion issues are related to temporary pollution prevention at the public storm sewer during construction. There is no other anticipated means of runoff from this urban infill site during or after construction. Regarding item #2, we are assuming that post- versus predevelopment runoff will be similar, given that this was previously a developed site with impervious surfaces. Regarding item #3, we have a Stormwater Pollution Prevention plan submitted by the Contractor that can be provided to describe temporary measures concerning protection of the storm sewer during construction. The project does not include any permanent landscaping or topography subject to erosion. Item #4 is not applicable since permanent erosion control is not necessary. Question: Are the above statements and the inclusion of the Contractor\'s Stormwater Pollution Prevention plan adequate to achieve the pre-requisite?
Under LEED-NC v2.1, SSp1 requires the submittal of a signed LEED Letter Template declaring whether the project followed local standards or the referenced EPA standard and a list of the measures implemented. Naturally, only certain E&S measures will be applicable to your highly built-out site (soil not exposed to wind and weather is generally not susceptible to erosion). The credit requirements include the preparation of sediment and erosion control plan which prevents the loss of soil during construction, prevents sedimentation of storm sewers or receiving streams, and prevents air pollution by dust and particulate matter. The "Stormwater Pollution Prevention plan" mentioned above might very well satisfy these requirements. In terms of submitting for review to USGBC, follow the procedures outlined in the Reference Guide and the LEED Letter Template. Although not required initially, inclusion of the E&S plan would be helpful during the review process.