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HomeMy WebLinkAboutWPO201100043 Review Comments Erosion Control Plan 2012-07-17Philip Custer From: Philip Custer Sent: Tuesday, July 17, 2012 10:37 AM To: 'Alan Franklin'; Eugene Ryang; bradford.brady @comcast.net Cc: Ana Kilmer; Mark Hopkins Subject: Bramley Farm Conditional Approval (WPO- 2011 - 00043) Good Morning, I have reviewed the latest information submitted for the Bramley Farm application (WPO- 2011 - 00043). The ESC plan can be approved with the following conditions: When the second phase of this plan is submitted for the building site, garage, and septic field the previous MS- 19 analysis must be revisited. I believe some of the n -value assumptions for the channel to the east are incorrect and yield lower velocities than what will actually be experienced. Preferably, in the second phase, this channel can be brought around the garage and septic field into the meadow where it can be found that an adequate channel exists in the low area where the sediment basin was previously proposed. When the four copies of the plan are submitted to the county for approval, they include the extension of the diversion dike north of sediment trap 1 to the construction entrance. The new level spreader that is proposed in the footprint of sediment trap 1 is removed and the runoff from the culvert is directed to the natural level spreader that Alan pointed out to me in the field a few months ago. The natural level spreader in the meadow should be fenced from the existing fence by at least a 100ft to preserve this condition. This should be shown in the new copies of the plan submitted to me for approval. As mentioned immediately above, I will need 4 copies of the plan for approval. Please email me a pdf of modified sheet 1 to confirm that the changes are correct before dropping off the 4 sets of the plan. To receive an ESC bond amount, please provide a completed Bond Estimate Request Form to the County. Since the property is owned by an LLC, the legal document detailing who has the right to sign for the LLC should also be provided with this form. A grading permit will be distributed at the preconstruction meeting. Before a preconstruction meeting is held, the 4 copies of the revised plans (above) must be provided to me, the bond must be calculated and posted, and the grading permit fee ($150) must be paid. Please let me know if you have any questions. Thanks, Phil 296 -5832 x3072