2016-10-04_REVISION - C1996084 (2)

Home Browse Search

Lorencito Canyon Mine (C-1996-084) ISJ Q�LI access road or topsoil piles are adjacent to the Lorencito stream channel. This approval is no longer granted, as the areas requiring protection have been bond released under SL -02. It appears that other disturbances, in particular Pond 5 and Pond 7a, require a variance from Rule 4.05.18. NECC should submit a minor revision to amend the PAP to account for [hese ponds (and other disturbances as necessary). The Division approved a variance from topsoil removal, in accordance with Rule 4.06.2(2)(a ), for those areas of the surface mine where the slopes exceeded 50 percent. Since topsoil removal activities at the site are complete, this variance is not relevant to current conditions and is no longer granted. The applicant had originally requested additional time for backfilling and grading Following coal removal in a contour strip mine. A detailed written analysis in the PAP demonstrated that additional time was necessary, and the Division approved the additional time for this area. Since backfill and grading activities at the site are complete, this variance is not relevant to current conditions and no longer granted. Section V -Enforcement Actions No enforcement actions are currently pending at this site, and the mine is in compliance with the Rules and Regulations. No violations have been issued since Permit Renewal No 3. Section VI -Identified Issues and Required Revisions The Division has identified the following to be addressed by NECC_ • In the 2014 ARR for Lorencito, ORMS noted (letter of 19 February 2015) that there is an error on the ARR forms: Phase III released areas have been erroneously included in the total of disturbed acres. Please address this issue. • As necessary, please update the list of owners and controllers in the PAP. • As noted above, it appears that other disturbances, in particular Pond 5 and Pond 7a, require a variance from Rule 4.05.18 (stream Buffer Zones). NECC should submit a minor revision to amend the PAP to account for these ponds (and other disturbances as necessary)_ • The Division recommends that the check dams above Pond 6 be discussed in the text and added to appropriate maps in the PAP because they are important sediment control structures. • Map 2.05.3-5 appears to be missing a culvert above Fill 7. This and other omissions should be added to this map. Insure that what is on the ground matches what is in the PAP. • Please clarify the plan and designs for ditches on-site, particularly the ditches on the sides of the fills. The text in the PAP (page 2.05-30) indicates that fill -related structures are shown on Map 2.05.3-2; however, the side ditches are not shown on this map. The ditches are shown on Map 2.05.3-7, however the ditch numbers do not appear to match the ditch numbers in the design in Exhibit 15 of the PAP (and thus it difficult or impossible to compare the two to check Page 9 of 30