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s . , _ _ `� 11�
<br /> l ! A-10 !i,i.
<br /> • land-disturbing activity in connection with the construction of
<br /> facilities to be located on, over, or under a lake or natural
<br /> watercourse,
<br /> -� b, Graded Slopes and Fills - the angle for graded slopes and fills i
<br /> shall be no greate—r than the angle which can be retained by
<br /> •
<br /> • vegetative cover or other adequate erosion control devices or struc
<br /> tures. In any event, slopes left exposed will, within 30 working
<br /> days of completion of any y phase of grading, be planted or otherwise
<br /> 1'1" ; provided with ground cover, devices, or structures sufficient to
<br /> =1 restrain erosion.
<br /> •
<br /> c. Ground Cover - whenever land-disturbing activity is undertaken`i � on a t— ract comprising more than 20,000 square feet, if more Hi
<br /> ' ! than 20,000 contiguous square feet is uncovered, the person
<br /> conducting the land-disturbing activity shall install such :I
<br /> sedimentation and erosion control devices and practices as are ij
<br /> sufficient to retain the sediment generated by the land-disturbing
<br /> activity within the boundaries of the tract during construction I� i
<br /> upon and development of said tract, and shall plant or otherwise :; +
<br /> provide a permanent ground cover sufficient to restrain erosion
<br /> , after completion of construction or development within 30 working
<br /> days or 120 calendar days following completion, whichever period
<br /> is shorter. Amended effective (April 8, 1980).
<br /> t
<br /> d. Desi'n and Performance of Control Measures - erosion and ;
<br /> se�imentation contra measures, structures, and devices shall be '; '"
<br /> planned, designed, and constructed as- to provide control of a so y ! .
<br /> accelerated erosion and sedimentation from the calculated peak 4
<br /> rates of runoff from a ten-year frequency storm. Runoff rates
<br /> `-. I shall be calculated using the procedures in the USDA, Soil
<br /> Conservation Service's, "National Engineering Field Manual for k ..
<br /> Conservation Practices, or other calculation procedures acceptable ;;,
<br /> to the Erosion Control Officer. Runoff computations shall be based
<br /> on rainfall data published by the National Weather Service for
<br /> 1 the area.
<br /> !, l:
<br /> I Section 8.7 AdcUJ onne S.tcuidatds bon Land-Diatun6.ing Activity in Univexs.i.ty ! r
<br /> Lake Watehshed ;
<br /> The phavca cpyta a6 Section 8 ahaCe appQy to Qand-dia. 1 L.
<br /> 1 the U,t.Lveh.6.i.ty Lake Watenafted. In addition, the de4.{g, cof timet on and 11.
<br /> ma ntenance o6 dnairtage systems .in deveeopments within the U+tive/ JJty Lake I
<br /> ' II Wate/tshed dlarJ aeso be cons.i3temt with the So.Leow.ug �atandands 1l.�
<br /> htitrtdands ah e ca,tt�cae -to the extent that they cute mono neb and these
<br /> !
<br /> those bet 6ontlt in Section 8. #fictive than I1
<br /> a. Ct,atteen Rutta, , - charuteCut /tun f ' t
<br /> 1 •e pao u. .c,te•. Rwto66 sha.Ce be /touted tit/tough sc�a.eeat a d otlten shale ! `'+
<br /> 11 4ystems deo.igned to ,inc/Lease -time oS concentta.tCon, dec•tease
<br /> { veeoci.ty, autctease .itt5•ic;ttativn, aeCow suspended so.e ds to settee,
<br /> and .ternove po.�eutan.ts. ff
<br /> b. A tteration o Wste t coup s es - tut.tutae t�-ten couna es s! 1 III
<br /> aaCC not be.
<br /> •t'•ge•, clue, o vegetmczon, deepened, widened, atlaightencd, .�
<br /> .s•ta6 ed on oche�4iae �tuced except in acca/tdwtce tui.tlt wt
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