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2012-09-06_REVISION - M2008070 (21)
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2012-09-06_REVISION - M2008070 (21)
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Entry Properties
Last modified
6/15/2021 2:25:46 PM
Creation date
9/13/2012 12:53:51 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2008070
IBM Index Class Name
REVISION
Doc Date
9/6/2012
Doc Name
AM-01 APPENDIX D: ENVIRONMENTAL ANAYSIS - WHITE RIVER CITY GRAVEL PIT PHASE 2
From
WESTERN GRAVEL
To
DRMS
Type & Sequence
AM1
Email Name
THM
Media Type
D
Archive
No
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Part of the NAAQS includes the Prevention of Significant Deterioration (PSD) program, which <br />applies to construction of major sources of pollutants in attainment areas. The purpose is to <br />protect ambient air quality and limit the incremental increase of specific air pollutant <br />concentrations above a legally defined baseline. The Colorado Department of Public Health and <br />Environment (CDPHE) has adopted the Federal air quality regulations and is responsible for <br />implementing the PSD program. The gravel pit study area is designated as a PSD Class II area, <br />which allows a greater incremental increase in pollutants than Class I areas, such as those found <br />around national parks and wilderness areas. Table 1 shows the allowable incremental increase <br />for Class II areas. According to BLM records, the project study area is located more than 10 <br />miles from any known special designation air sheds or non - attainment areas. <br />Environmental Consequences of Proposed Action: Operation and maintenance of the gravel pit <br />will likely result in increased dust particulates from equipment and vehicle traffic, as well as <br />increases in other particulate emissions from gas and diesel - powered equipment. <br />The Proponent has obtained an Air Pollution Control Division (APCD) permit from the Colorado <br />Department of Public Health and Environment (CDPHE) to comply with all air quality standards <br />enforced by the State. Part of the requirements of this permit include conducting emissions <br />monitoring and reporting to the APCD, which includes filing an Air Pollutant Emission Notice <br />(APEN) with the State. State permits are issued with stringent guidelines and emissions caps to <br />ensure compliance and prevent operations from exceeding State emissions standards, therefore <br />the proposed action should have no significant impacts to air quality in the area. The APCD <br />permit is incorporated to this EA by reference as Appendix A. <br />3.2 WATER QUALITY Surface and Ground <br />Affected Environment: The proposed action will cause significant surface disturbance to an <br />upland bench overlooking the White River and potential stormwater runoff from the access road <br />paralleling the river corridor as well. The gravel pit operations are subject to Stormwater <br />Management regulations enforced by the CDPHE, and as such the property will be under <br />Stormwater Management Permit coverage. A comprehensive Stormwater Management Plan <br />(SWMP) will be written as part of that permit process, which includes installation of structural <br />and non - structural Best Management Practices (BMPs) to minimize erosion and prevent <br />sediment from leaving the work site and entering watersheds. A copy of the SWMP document <br />must be kept on site at all times and, by law, stormwater control inspections must occur at <br />minimum every 2 weeks or after every storm event which causes surface water to flow, <br />whichever first occurs. Inspection records and corrective actions taken to BMPs must also be <br />kept onsite with the SWMP document and made readily available during any State compliance <br />inspection. <br />The Proponent has a significant water right attached to his deeded Property (four separate filings <br />dating from 1899 and totaling 14.5 cfs) which is more than adequate to meet gravel production <br />needs over the life of the project. Further, the Phase 2 site itself is located on land owned by <br />Sam Love, who also owns water rights exceeding the gravel production needs. Gravel <br />production use includes consumptive use for dust control in the gravel pit and on access roads <br />serving the pit, as well as for production facilities such as the enclosed crusher, screen plant and <br />Environmental Solutions, Inc. Page 7 of 30 March 09 <br />
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