2010-02-24_REVISION - C1996083 (3)

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0 2.05.3 Light Use Roads New and existing light use roads are or will be located on ridges or on the most stable available slopes. No part of the light use roads are located in the channel of an ephemeral stream where the upstream watershed is over one square mile. The light use roads are not located in any intermittent or perennial streams. Light use roads will be located to minimize downstream flooding. Run -off from the light use roads must flow through significant vegetation before its reaches any stream or leaves the permit area. The vegetation will filter sediment from the run -off and slow or stop the flow. No empirical demonstration of the effectiveness of the vegetation filter is presented. However, a visual inspection of the area surrounding the light use roads will confirm it is unlikely the light use roads will cause damage to fish, wildlife or other environmental values or cause additional contributions of suspended solids to steamflow or to run -off outside of the permit area. 10 Light use roads will not cross flowing steams, wet areas or ephemeral channels where a culvert would minimize the probability of disturbance of the hydrologic balance. Therefore, no culverts are orwill be installed forthe light use roads. No surfacing will be utilized for the light use roads. The light use roads will be maintained adequate for the intended use of the roads. A light use road damaged by a catastrophic event will be repaired as soon as is practicable after the damage has occurred. The light use roads used for monitoring are typically pre- existing jeep trails that can be identified on Map 9, Hydrologic Monitoring Location. The majority of the traffic on the light use roads is comprised of all terrain vehicles (four - wheelers) or small trucks. The light use roads were used during 1995 and 1996 to gather environmental baseline information and were found to be constructed to adequately support the volume and weight of the vehicles utilized. County road 4365 lane ends at the south side of the bridge over the Fire Mountain Canal. A private road extends from the end of the County road to Pond K. This light use road, including the county road segment, is . approximately 1,400 feet long with an average grade of 7% and a pitch grade PR-12 2.05-34- 02/10