HomeMy WebLinkAboutLetter from Chris Hale 5.09.11May 9, 2011 Ms. Molly Orkild-Larson Garfield County Building & Planning 0375 County Road 352, Building 2060 Rifle, CO 81650 RE: SUAA-6800, SUP Amendment to Prodnced Water Management
Tank Facility: Chevron U.S.A. Inc. Dear Molly: This office has performed a review of the documents provided for the amendment to the Special Use Permit for the Produced Water Management
System of Chevron U.S.A. Inc. The submittal was found to be thorough and well organized. The review generated the following questions, concerns, or comments: 1. Swale # I and swale #2
drop into the diversion ditch from the top of the 3: 1 side slopes. , Erosion should be expected and riprap or other erosion control should be employed down 3: 1 side slopes. 2. The
Applicant should discuss how the tanks are interconnected. If the tanks are interconnected and act as ,a single storage system then the containment berm should be for 150% of the total
storage volume plus allowances for storm events and freeboard. Feel free to call if any of the above needs clarification or if you have any questions or comments. Sincerely, Mountain
Cross Engineering, Inc. Chris Hale, PE