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" ' ~ ~ ~ SECTION 9: BEST MANAGEMENT PRAC~CES <br />The following practices are representative of measures employed within the Sand & Gravel Industry for limiting <br />pollution associated with runoff. The specific practices listed below should not he construed as practices that are <br />mandatory or that there is any need on the part of an operator to justify non-use of a particular practice. <br />Obviously, the intent of BMP's is to effect a measure of control over the water quality of storm water discharges. <br />The practices selected by an operator to achieve this end may evolve with time. <br />PRACTICE EMPLOYED AREA WHERE PRACTICE IS EMPLOYED DATE OF <br />IMPLEMENTATION <br />Ve elation Mana ement: <br />Buffer Strips 100' from Big Thompson River to Stock <br />files on East side of St. Louis Ave. Must always be <br />observed <br />Tem ora Seedin <br />Constructed Wetlands West of concrete lant see ma Existin <br />Reve elate as Practicable To soil and Overburden stock Iles TBD <br />Other Describe <br />Water Mana ement: Interim Measures <br />Straw Bales Stormwater outfall SW of sho see ma Existin <br />Silt Fences Maybe used south of topsoil and <br />overburden stock Iles see ma TBD <br />Detention Ponds Various locations throughout site (see <br />ma Varies <br />Ri Ra in <br />Other Describe <br />Water Mana ement Permanent Structural Controls <br />Site Gradin <br />U stream Flow Diversion <br />Channel Im rovements <br />Overland Flow Routin <br />On site Flow Diversion South of topsoil and overburden <br />stock Iles see ma TBD <br />Flow Stora a/Detention <br />Berming Along Big Thompson River on West side <br />of St. Louis Ave. Existing <br />Earth Dike <br />Check Dams <br />Pi a Slo a Drain <br />SedimentTra Area <br />Flow Attenuation Area <br />Infiltration Area <br />Water Bars <br />Other Describe <br />