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b. Control of Velocity <br />ii <br />Persons shall glan and conduct land-disturbing activ' so that the construction velocill of tbe 10- <br />ear storm nmoff in the receiving watercourse to the dischara int does not exceed the of: <br />1. the velocity established by the table in paragraph 3 of the subsection: or <br />2. tke—yeAmity of the 10- ear storm runoff ' the receiving watercourse riot to deve o meat. <br />If conditions (1) or (2) of this paragraph cannot be met, then the receiving watercourse to and including <br />the disc a int 1 be desi ed and constructed to withstand the W veloci an here the <br />ve oci exceeds the " rior to deve t" velaci by 10%. <br />COAadENTARY.- These revisions are made to clarefy the intent of this section which is to protect watercourses <br />on the site from the impact of increased runoff velocity and to ensure that the design results in a nonerosive <br />velocity at the point of discharge. <br />Section 10 Borrow and Waste Areas <br />When the person conducting the land-disturbing activity is also the person conducting the borrow and waste <br />disposal activity, areas from which borrow is obtained and which are not regulated by the provisions of the <br />Mining Act of 1971, and waste areas for surplus materials other than landfills regulated by the Departments <br />Division of Solid Waste Mmagement , shall be considered <br />as part of the land-disturbing activity where the borrow material is being used or from which the waste <br />material originated. When the person conducting the land- disturbing activity is not the person obtaining the <br />borrow and/or disposing of the waste, these areas shall be considered a separate land - disturbing activity. <br />COMMENTARY.' This revision addresses a name change in this agency. <br />Section 15 Existing Uncovered Areas <br />b. Notice of Violation <br />The Erosion Control Officer will serve upon the landowner or-other RD= in possession or control of <br />the land written notice of violation by registered or certified mail, return receipt requested, or other <br />means mxmw <br />411 calculated to 've actual notice. The notice will set forth the measures needed to <br />comply and will state the time within which such measures must be completed. In determining the <br />measures required and the time allowed for compliance, the authority serving notice shall take into <br />consideration the economic feasibility, technology, and quantity of work required, and shall set reasonable <br />and attainable time limits for compliance. <br />COAadENTARY.- This revision is intended to improve notification to the person responsible for a violation. <br />Section 17 Permits <br />d. Expiration of Permits <br />For the purpose of determining the expiration date of the_pIan approval and grad_�Permit the land - <br />disturbing activity is considered to have started when the Moonstruction conference has been held, the <br />necessary erosion control practices have been properly installed, and the site clearing or grading has <br />begun. <br />CObll ff-N ARY.- iris revision is proposed by the staff. Tice purpose is to emphasize holding the preconstruction <br />conference, and, for the purpose of determining the expiration date of the permit, the conf rence must have been <br />held in order to consider work to have started. <br />6 5 -9 -91 <br />