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There are locations at Mine 3 that will require small area exemptions as provided for under <br />Rule 4.05.2(3), six of which have previously been approved. These areas are as follows: <br /> <br />1) M3S Access Area -includes some 4 acres of distrubance adjacent to the <br />intersection of County Roads 179 and 33. Flow from this area travels through a <br />diversion to a culvert leading to a rock filter. <br />2) Ditch P1 Area -includes some 1.6 acres of narrow strip which is bordered by Ditch <br />P1 on the west and County Road #179 to the east. Flow collects at and moves <br />through a culvert some 750 feet north of the intersection of County Road #33 with <br />County Road #179. All flow is filtered by established vegetation or conveyed to <br />a rock filter before reaching Middle Creek. <br />3) Homestead Ditch Exemption One -includes 16.8 acres of 1983 seeding upslope <br />of the Homestead Irrigation Ditch. The area was seeded with fast-establishing <br />grasses, and was contour furrowed. CYCC has agreed to provide a demonstration <br />that the area does not contribute excessive sediment loads to the irrigation ditch. <br />• This demonstration will include the collection of samples from the ditch for <br />analyses of Suspended Solids (both before and immediately after a precipitation <br />event- during irrigation flow, and an assessment of erosion potential. <br />41 Middle Creek Office Area -includes 2.0 acres surrounding the Middle Creek Office <br />consisting primarily of driveway, storage, and parking areas. Flow from this area <br />is collected by a ditch around the perimeter of the exemption, and is channeled to <br />a rock filter before entering Middle Creek. <br />5) Middle Creek Office Topsoil Stockpile -includes some 0.5 acres approximately 500 <br />feet southwest of the Middle Creek Office exemption. The combination of slope, <br />vegetative cover, and distance of that overland flow must travel preclude sediment <br />reaching Foidel Creek. <br />6) Homestead Ditch Exemption Two -Includes some 25 acres of 1986 seeding <br />upslope of the Homestead Irrigation Ditch. The area was seeded with fast <br />• establishing grasses, ripped, and contour furrowed. Flow is filtered by vegetation <br />MR 92-16 Exhibit 3 - 39 Revised 11!04/92 <br />