Regulations. Additional regulations of the underlying zones, in addition to those contained herein, shall also apply in the I-D-O Zone. Density. The density may not exceed the density of the underlying zone. Uses. The uses allowed in the I-D-O Zone are the same as those allowed in the underlying zones in which the land is classified, except as otherwise specified in Subtitle 27. General policies. New or expanded development or redevelopment in the I-D-O Zone shall take place in such a way as to: Improve the quality of runoff from developed areas that enters the Chesapeake Bay or its tributary streams; Accommodate additional development of the type and intensity designated by the County in this Program provided that water quality is not impaired; Minimize the expansion of I-D-O Zones into portions of the Critical Area designated as Habitat Protection Areas and R-C-O Zones; Conserve and enhance fish, wildlife, and plant habitats, as identified in the Habitat Protection Area Chapters of this Subtitle, to the extent possible within I- D-O Zones; and Encourage the use of retrofitting measures to address existing stormwater management quantity and quality problems. Development standards. The following development standards must be demonstrated within the I-D-O Zone: For redevelopment plans, opportunities to reduce impacts on water quality generated by existing development shall be analyzed; Urban (BMPs) for stormwater treatment shall be considered and, where appropriate, implemented as part of all plans for development and redevelopment; Stormwater shall be addressed in accordance with the following provisions: Development or redevelopment projects shall use technologies as required by applicable ordinances in order to minimize adverse impacts to water quality caused by stormwater. In the case of redevelopment, if these technologies do not reduce pollutant loadings measured by use of the keystone pollutant method by at least 10 percent below the level of pollution on the site prior to redevelopment, then offsets shall be provided. Guidance for compliance with this requirement is provided in the Critical Area 10% Rule Guidance Manual - Fall 2003 and as may be subsequently amended. In the case of new development, offsets shall be used if they reduce pollutant loadings by at least 10 percent of the pre-development levels. Guidance for compliance with this requirement is provided in the Maryland Chesapeake and Atlantic Coastal Bays Critical Area 10% Rule Guidance - Fall 2003 and as may be subsequently amended. Offsets may be provided either on or off site, provided that water quality benefits are equivalent, that the benefits are obtained within the same watershed, and that the benefits can be determined through the use of modeling, monitoring or other computation of mitigation measures. Guidance regarding offsets is provided in the Maryland Chesapeake and Atlantic Coastal Bays Critical Area 10% Rule Guidance - Fall 2003. There is no Critical Area lot coverage maximum in the I-D-O, however, where practicable, permeable areas shall be established in vegetation, and whenever possible, redevelopment shall reduce existing levels of pollution. Areas of public access to the shoreline, such as foot paths, scenic drives and other public recreational facilities, should be maintained and, if possible, encouraged to be established within the I-D-O.