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<br />25.05 .._C;()~E9TATION Or..REQUlREO SOH CHARGE.
<br />
<br />SUbdlvision 1. Base rate. The !978 base rate for
<br />. compntation of the SDM Charge shall be.'15.3cent.s per'square
<br />foot~ This rate shall be adjusted annually on July 1st
<br />according,to the change in the En~ineerin7 News Record.. , .
<br />Constructlon Cost Index for the Mlnneapo11s-St. Paul areai
<br />
<br />Subdivision 2. New developments. The SDM Charge
<br />for any parcel of land upon which there i~ no existing prin-
<br />cipal building, as defined under Chapter 40 of the Municipal
<br />Code, shall be the product of the base rate established in
<br />Subd~vision 1 above and the total runoff equivalent of ~he
<br />?roposed land uses establ ished in Subdivision 4 below.
<br />
<br />Subdivision 3. Other developments. The SOM Charge for
<br />any parcel of land upon which there is an existing principal
<br />building ~hall be the product of the base rate established
<br />in Subdivision 1 above and the difference between the total
<br />runoff equivalents of the existing and proposed land uses
<br />established in Subdivision 4 belm....
<br />
<br />d. Tilt: SJ1.i Cliiti.'y12 siiall Lt: ;le1'0 wht:.L l.~vt:i' 'the difference
<br />between the total runoff equivalents of the existing
<br />and proposed land uses is less than ten.
<br />
<br />b, The minimum SDM Charge, except as provided in a, above,
<br />shall be twenty-five dollar~.
<br />
<br />c, No provision .ICt__in shall be con~trued to prohibit
<br />the payment of more than one SDM Charge for a
<br />specific parcel of lnnd.
<br />
<br />
<br />Subdivision 4. TO';:;al runoff equivalent. The Public
<br />Wor~s Director shall prepare total runoff equivalents for
<br />dll parcels of 'land for which R building per~jt is sough~, .
<br />The following coefficients of runoff shall be used to compute
<br />~he totfll runoff equivalent:
<br />
<br />Type of Drainage Area
<br />
<br />Bare soil, flat, 2% slope
<br />Dare soil, average, 2-7% ~lope
<br />Bare soil, steep, 7% slope
<br />Impervious arca (streets, drives, wal~s,
<br />roofs, etc.)
<br />Grassy areas ar.d natural wooded areas:
<br />Sandy soil, flat 2% slope
<br />Sandy soil, average, 2-7% slopc;
<br />Sandy soil, steep, 7% slopc
<br />Heavy soil, fl()t, 21, slope
<br />Heavy soil, Llveraqc, 2-71. slope
<br />Heavy soil, st(:cp, 7',. f;1.ope
<br />
<br />Runoff
<br />Coefficient
<br />
<br />.25
<br />,10
<br />!35
<br />
<br />,95
<br />
<br />.10
<br />.15
<br />.20
<br />.17
<br />.22
<br />.35
<br />
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