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s , <br /> � �� '. <br /> � � . <br /> � � <br /> / p\, <br /> � � ,�_ , I�TO <br /> � ���::��� � GI'T'Y" of O]�� <br /> i��,��? r'� hiunidpal 0ffic�:� <br /> � {k� `"` c -� ti Posi Qffice Bcax 66 <br /> � �!' �•.��r�i:� '�' Crystal Bay,:�iinnesota 553Z3-OOfi6 <br /> �',L����J�;�'�����G> <br /> � �9�„.���+��t, <br /> ESH. � <br /> H�,RDCOVER ORDL\jAl�'CF- In 197�, the Orono City Council adopted an ordinance IimitinQ <br /> the percentaae oi lot area that can be covered with impervious surface ("hardcover") such as <br /> roofs, driveways, sidewalks, etc. onproperties located within 1,000 feet of a lake. Studies have <br /> shown that sediments, oils, and debris carried into the lake from hi�hly urbanized areas ha��e <br /> a detrimental i.mpact on the qualiry of water in the lake. The intent of Orono's ordinance is to <br /> ensure that raintall run-off will be cleansed by filterinQ throuah arassed or vegetated yard areas <br /> berore enterina �ne lak.e. <br /> Hardcover Zones - A1lowed Percentages: <br /> 0-7� ��'° <br /> 7�-250' 25 0 <br /> ?�0-�00' 30�o <br /> 500-1000' �5"� <br /> Hardcoi�er includes: <br /> - Rcofs <br /> - Sidewai�:s <br /> - Paved or aravel drivewavs <br /> - Patios & decks (includes slatted decks) <br /> - Tops of retaining walls & rock walls <br /> - Decorative landscap� areas underlain b�� plastic sheeting or fabric <br /> - Anv ocher surface that does not allow direct absorp�ion of rainfall into <br /> the �round <br /> L\STRtiCTIO\S FOR C0�IPLETL\G HARDCO'��.R C:�LCLZATIO�' `VORI�.SI3EET <br /> 1, Circle which setback zone (0-7�'> 7�-2���> ete.) the calculation is for. <br /> �. For each item oi hardcover «'ithin that zone, enter the len�th and w•idth, and multiply to <br /> Qet square footaQe (s.t.). <br /> 3. Add up all the square footaQes to �e� total square footaQe of hardcover. <br /> 4. Divide by the total area of property within the zone and multipl5� by 100 to �P� <br /> percenta�e of hardcover in the zone. <br /> 5, If changes in hardcover are proposed, youaleaterdthan thosef allowedr ontactaC ry s�� <br /> worksheet. If either results in percenta�es � <br /> berore proceedin� with your project plannina! <br /> �orrE-a�s�• F,�x-a�osio <br />