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EDNA MINE--1992 EROSION INVENTORY REPORT <br />• Subarea 3 Erosion Condition Classification <br />South-of-Shop Subarea 3 was evaluated using the methods described in BLM <br />Technical Note No. 346. The erosion condition composite soil surface factor score <br />for this site is 10.5, which places it in the Stable erosion class. The field results for <br />the 1992 survey are contained on Table 3. <br />West Ridge <br />Three subareas were evaluated on West Ridge using the methods described in <br />BLM Technical Note No. 346 (Exhibit 1). Two of the subareas are topsoiled and one <br />is reclaimed spoil material. The soil surface factor scores and erosion condition <br />classifications are as follows: <br />West Ridge Subarea SSF Score Erosion Condition Classification <br />W-1-TS 25 Slight <br />W-2-NTS 46 Moderate <br />W-3-TS 20 Stable <br />The field results for the 1992 survey are contained on Tables 4, 5 and 6. <br />• PHOTOGRAPHIC RECORD <br />Photographs of Concentrated Flow Feature No. 1 and the various areas evaluated <br />for Erosion Condition Classification are located at the back of this report. The <br />photographs contain captions which are self explanatory. <br />CORRECTIONAL MEASURES AND METHODS <br />Correctional measures and methods are not required based on the 1992 erosion <br />inventory. The lower end of Erosion Feature No. 1 in the South-of--Shop area will <br />be monitored closely for instability. Should the measured erosion rate be deter- <br />mined to be excessive, a correctional plan will be submitted for MLRD review and <br />approval. <br />. WRE May 27, 1992 <br />