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HARDCOVER RHGDLATIONS AND WORKSHRET <br />A. HARDCOVER ORDINANI.'E - In 1975, the Orono City Council adopted an ordinance limiting <br />the percentage of lot area that can be covered with impervious surfaces ("hardcover*) <br />such as roofs, driveways, s_dewalks, etc. on properties located within 1,000 feet of <br />a lake. Studies have shown that sediments, oils, and debris carried into the laka <br />from highly urbanized areas have a detrimental impact on the quality of water in the <br />lake. The intent of Orono's ordinance is to ensure that rainfall run-off will be <br />cleansed by filtering tc,rough grassed or vegetated yard areas before entering the <br />lake. <br />B. HARDCO'•'ZR SETBACK ZONES - PERCENTAGE ALLOWED <br />I. 0-75's in the area within 75' of the lakeshore, No Hardcover is allowed <br />(01). <br />II. 75-250':' in the portion of the lot located between 75' and 250' from the <br />lake, 250 of that portion of the lot may be hardcovered. <br />III. 250-500': in the port'_on of the lot located between 250' and 500' feet <br />from the lake 301N of that portion of the lot may '>9 hardcovered. <br />IV. 500-1,0001: in the portion of the lot located between 500' and 1,000' feet <br />from the lake 350 of that porticn f the lest may be hardcovered. <br />'OTE: These regulations apply even if you have a chat does not abut the lake but is <br />within a lakeshore zoning district. <br />C. HOW TO DETERMINE LOT AREA WITHIN EACH SETBACK ZONE (To be used as denominator in all <br />hardcover percentage calculations) <br />I. 0-75' Zone <br />Area - 75' x (Average width o 0-75' zone\ <br />measure p llel to sho line J <br />,1-- � <br />5. <br />s <br />75x �S ft. 4875 s. . (1) N <br />(Avg width) Area of 0-75' e <br />II. 75-250' Zone <br />Area - (175'or avg lot d,,-th in zone% x(Avq width of lot in 75-250' zone\ <br />measure pazellel to shoreline ) <br />175' x _ 78 ft. - / 3 So s.f. (2) <br />(Avg width) Area of 75-250' zone <br />III. 250-500' Zone <br />Area - (250' or avg lot depth in zone) x(Avg width of lot in 250-500' zone) <br />measure parallel to shoreline f <br />250' x 3 S ft. - Y 7 S s.f. (3) <br />(Avg width) Area of 250-500' zone <br />IV. 500-1,000' Zone <br />Area - (500' or avg lot depth in zone) x( 'Avg width of lot in 500-1000' zone) <br />� measure parallel to shoreline f <br />50(1' x O ft. - C) s.f. (4) <br />(Avg width) Area of 500-1,000' zone <br />