2005-07-13_REVISION - M2000016 (14)

Home Browse Search

Employees (addresses USR Questionnaire, Item #8.a) The applicant anticipates there wilt be a maximum of two shifts and 40 employees working on the site. Adequate Water Supply (addresses USR Questionnaire, Item #8 fJ The operator will use bottled drinking water for employees at the working face of the site. Lafarge is in the process of determining whether they will use a well for the plant site or water tap from a local water district. This information will be submitted to Weld County once a decision is made. As this permit application represents an amendment to two existing Lafarge operations, there is an existing temporary substitute supply plan (TSSP) approved by the State Engim~er's Office (SEO). Lafarge has included a TSSP which covers the entire site for the next five years. The approved TSSP outlined depletions during mining and describes how replacements will be made. Please refer to Exhibit G of the attached MLRB 1 l2 Permit Amendment Application for: Riverbend Pit Groundwater Study, Groundwater Monitoring Program, Gravel Well Permit Application, Water Balance - Dewatering, Operational and Evaporation Losses, Certification Authorization to Discharge under the CDPS Industrial General Permit for Sand and Gravel Mining and Processing General Permit (CDPS Permit) and Stormwater Management Plan Sewal;e Disposal (addresses USR Questionnaire, Item #8.~ There are no sanitary sewer facilities planned for this operation. Lafarge will use portable restraoms near the working face. Lafarge will apply for an ISDS permit for the office and batch plants. Stormwater Drainage (addresses USR Questionnaire, Item #8. m) All mine areas will drain internally. Uncontrolled releases of surface water and sediment from mining areas will not occur. Stormwater collected in the open pit will be managed in accordance with Colorado/NPDES discharge permit requirements. Sediment generated from localized storm water runoff and surface drainage will be managed according to the Stormwater Management Plan. Lafarge has prepared a Stormwater Management Plan pursuant to the Colorado Department of Public Health and Environment, Water Quality Control Division regulations as part of their CDPS permit. Please refer to Exhibit G of the attached DMG MLRE 1 l2 Permit Amendment Application for a copy of the Stormwater Management Plan. Landscaping/Final Reclamation (addresses USR Questionnaire, Items #8 j, #8. k, and #8.1) Lafarge will construct agrass-covered berm roughly parallel to U.S. Highway 85 on the southeast portion of the site to act as a visual and noise barrier. The berm will be seeded with a drylaud grass mix. Trees and shrubs will be planted on the berm and watered with a drip irrigation system. Once the dryland grass mix is established the berm will be overseeded with a wildflower mix. Upon the final stages of reclamation the berms will be removed. Refer to the Weld County USR Application Reclamation Plan Map, which lists the proposed landscaping. Also, Exhibit E, Reclamation Plan, of the attached MLRB 112 Permit Amendment Application describes the proposed reclamation and landscape procedures. Exhibit D, Mining Plan, of the attached MLRB 112 Permit Amendment Application details the mining and reclamation schedule. lafarge Wes(, /ne.. -Riverbend Weld County USR Permi! Page 19 of 4!