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16 <br />c) Existing Lots <br />An existing lot, for the purpose of determining compliance with Article <br />6.23, is defined as a lot which was created prior to January 1, 1994, or a <br />lot within the Cane Creek watershed which was created prior to October <br />19, 1999, with respect to the October 19, 1999, amendments related to <br />the CANE-CA and CANE-PW districts, and non-conforming lots of <br />record. <br />Stream buffers as required by Article 6.23.7, and setbacks for septic <br />systems as required by Article 6.23.8 may be reduced to .the extent <br />necessary to allow development of the lot, provided that all of the <br />following criteria are met: <br />1) The septic system is sized to serve no more than four <br />bedrooms; and <br />2) The septic tank, drainfield and repair area (where required) can <br />be accommodated on 20,000 square feet of area or less; and <br />3) The Orange County Planning Staff,. in consultation with Orange <br />County Environmental Health and/or the Orange County <br />Engineer has determined that encroachment of the structure <br />into the stream buffer and/or encroachment, of the septic <br />system or repair area into the stream buffer or reservoir setback <br />is necessary in order to provide adequate area for septic <br />disposal and repair while maintaining, required separations <br />between wells, septic systems, structures and property lines; <br />and <br />4) The Orange County Planning Staff, in consultation with Orange <br />County Environmental Health and/or the Orange County <br />Engineer, has determined that the relative locations of the well, <br />septic system and structure maximize the amount of watershed <br />protection that can be achieved while allowing development of <br />the lot. Generally, an exception to setbacks for repair area is <br />preferable to an exception for the initial septic system, and <br />encroachment of structures or gravity septic systems into the <br />setback is preferable to the installation of a septic. system pump. <br />5) The amount of encroachment into the stream or reservoir buffer <br />is the minimum amount whin-h--that can be obtained while <br />meeting the above criteria as well as the mitigation <br />requirements outlined within subsection B of this Section.- <br />A- 16 <br />