ARCHIVED REPORTS XR0011671 - Laserfiche WebLink

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�I Significance after Mitigation: Less than significant Implementation and Monitoring Program: Implementation Public Works Department ' Monitoring The Public Works Department will ensure that the appropriate permits are obtained from the U S Army Corps of Engineers, Department of Fish and Game, and the i RWQCB, prior to commencement of construction ' e: Discharge into surface waters,or in any alteration of surface water Quality including but not limited to,temperature,dissolved oxygen,or turbidity9 ' Answer: No However, dredging of potential debris beneath the proposed sheetpile(Sheet 4 of 6)and placement of rock rip-rap is anticipated to temporarily increase turbidity ' Approximately 20,000 ft3 (835 ft x 12 ft x 2 ft)of rock rip rap material may be placed at the base of the seawall below the waterline along the length of the seawall Alternatively, 1� approximately 16,650 ft'(I 11 ft x 30 ft x 5 ft)of rock rip-rap material may need to be placed ' a� II at the base of the seawall along the southern border of the ARCO gas station The height of' e rip-rap varies and may be up to 7 ft high at the seawall adjacent to the ARCO gas station Level of Significance: Not significant ' Mitigation Measures: The Ci tyaPPlied for the necessary U S Army Corps of Engineers Section 404 permits on 18 July 1997(Appendix C) The City obtained the requisite Section 404 nationwide and Section 10 permits from the Corps in August 1997 (Appendix C) The ' { Section 404 permits consist of a Nationwide 13 and a Nationwide permit 25 The Corps authorized the Section 10 portion of the project under a Letter of Permission Prior to q commencement of construction the City will consult with the Department of Fish and Game regarding a 1601 Streambed AIteration Agreement,and with the Regional Water Quality Control Board fora 401 Water Quality Certification or waiver(see Appendix B, page 16) g The City and its subcontractors will comply with the stipulations as set forth in these permits ' {C Significance after Mitigation: Less than significant F lrImplementation and Monitoring Program: Implementation Public Works Department Monitoring The Public Works Department will ensure that the appropriate permits are y obtained from the U S Army Corps Engineers,Co s of En Department of Fish and Game and the ' RWQCB, prior to commencement of construction F f Alteration of the direction or flow rate of groundwater? IF Answer- No The proposed project will not affect the direction or flow rate of groundwater ' Level of Significance- Not significant w jC Mitigation Measures None required i 'Significance after Mitigation: NIA ' I� I� EX_[5 M DOC 9/2!97 20 I