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UNIVERSITY LAKE WATERSHED <br />FOOTNOTES - EXPLANATION OF CERTAIN STANDARDS REQUIRED BY STATE RULES <br />a) Defining Boundaries <br />The watershed boundary extends to the ndgeline. The critical area extends one mile from the <br />normal pool elevation, or to the ridgeline of the watershed, which ever comes first. <br />The boundaries of the critical area may be extended by the local government. Major landmarks <br />such as roads or property lines may be used to delineate the boundaries if they are immediately <br />adjacent to the ridgeline or 1 -mile boundary as appropriate. <br />Local governments are responsible for delineating the normal pool elevation for reservoirs. This <br />information is used to determine the boundaries of the critical area. These boundaries must be <br />submitted by the local government using 1:24,000 USGS topographic maps. <br />b) Existing Density Standards <br />Up to S lots of 2 -5 acres may be created from lots which existed on 4 -2 -90, when the existing <br />standards for University Lake Watershed went into effect, All additional lots must contain at <br />least S acres. <br />c) Existing Impervious Surface Standards <br />New subdivisions within the University Lake Watershed must meet an overall impervious surface <br />limit of 6%, which can be distributed as needed among the individual lots. Lots which existed <br />prior to the adoption of current standards are subject to a sliding scale, whereby the allowable <br />impervious surface may range from 15% to 4%, depending on the size of the lot. Smaller lots <br />are allotted a higher percentage. <br />d) Starmwater Controls <br />Wet water detention ponds fvr reesidendal developments are permitted in the watershed to provide <br />additional stommmater control. They are not permitted within the critical area. <br />Stonnwater controls for non - residential developments are also permitted outside of the critical <br />area. Engineered controls are not limited to wet water detention ponds, but must be handled <br />on a case -by -case basis. <br />It is the responsibility of local government to assure the proper operation and maintenance of <br />engineered stormwater controls. The local government: <br />must inspect the controls at least once a year; <br />must maintain records of inspections, <br />may charge reasonable inspection fees; and <br />33 <br />