underline-strikeout version of the final draft ordinance - Pima County ...

For May 4, 2010 BOS HearingTHIS THE CLERK OF THE BOARD FORMAT!!!bridges or rock outcrops, and changes in the direction, amount, and velocity of flow of the watersin the watercourse.C. For constructed channels, channel banks are required to be stabilized to prevent erosion alongminor watercourses with base flood peak discharges of less than 2,000 cfs, but greater than 500cfs. Stabilization is required unless a variance waiver to the requirement is granted by the ChiefEngineer based on an engineering study, prepared and sealed by an Arizona registeredprofessional civil engineer, which demonstratesing an appropriate building setback for an earthenchannel, based on soil and natural flow conditions. For constructed channels with a base floodpeak discharge of less than 500 cfs, channel stabilization may be required based on engineeringanalysis and assessment of soil conditions and flow velocities. (Ord. 2010 FC-1; Ord. 2005 FC-2§ 2 (part), 2005; Ord. 1999-FC-1 §§ 1 (part) 1999; Ord. 1988-FC2 Art. 12 (B), 1988)16.28.040Appeals and variances.A. Appeals. Any applicant property owner requesting an appeal ofdisputing a written findingdecision or technical interpretation byof the Chief Engineer denying a permit or delineating anerosion hazard setback may appeal to the Board as provided in Chapter 16.56 of this title.B. Variances. Any property owner requesting a variance from the requirements of this Title shallsubmit a request for a variance toof the Board through the Chief Engineer as provided in Chapter16.56 of this title. (Ord. 2010 FC-1; Ord. 2005 FC-2 § 2 (part), 2005)Chapter 16.30WATERCOURSE AND RIPARIAN HABITAT PROTECTION AND MITIGATIONREQUIREMENTSSections:16.30.010 Purpose.16.30.020 Description.16.30.030 Applicability.16.30.040 Permits.16.30.050 Mitigation.16.30.060 Review process.16.30.070 Appeals and variances.16.30.080 Riparian habitat maps.16.30.010Purpose.The purpose of this chapter is to promote stable flow and sediment transport conditions, preservenatural floodplain functions, and provide watercourse management by preserving and/orenhancing riparian vegetation and habitat along watercourses and floodplains and to:A. Promote benefits provided by riparian habitat resources, including but not limited to,groundwater recharge, natural erosion control and protection of surface-water quality.B. Ensure the long-term stability of natural floodplains and survival of the full spectrum of plantsand animals that are indigenous to the County by:1. Assuring riparian habitat acreage and existing or natural functional values are not diminishingduring development;49