SBCT Final EIS - Govsupport.us

Chapter 3 ⎯ Affected EnvironmentCDPHE in August 2005 and will continue to be followed. Additionally, land disturbance permits anddust suppression regulations and procedures are applicable and implemented at FTC.3.3.10.5 Pinon Canyon Maneuver SiteThe PCMS is subject to Construction Permit No. 96LA1082, which limits the generation of DoDapprovedobscurants for training exercises. The PCMS will not exceed the following permit-limitedemission rates (APCD 2000):• 1,540 gallons per day for fog oil; or• 115,591 pounds per year of smoke munitions; of this, hexachloroethane is not to exceed 2,024pounds per year.Controlled burns are used to minimize the risk of large fires by reducing fuel loads and breaking upthe continuity of fuels. Prescribed burning targets areas with heavy fuel buildups that are the mostlikely to ignite because of range operations.To reduce the air quality impacts, the PCMS follows AR 200–1 to provide environmental protectionand enhancement. Under AR 200–1, steps are identified that enable the Army to meet federal andstate regulations and to minimize the use of ozone-depleting chemicals (Army 2007).Although not required, the Fugitive Dust Control Plan (DECAM 2004a) and Fort Carson Regulation2001 (Fort Carson 1999b) established for Fort Carson are followed as part of the BMPs at the PCMSto minimize dust impacts to air quality. Additionally, state land disturbance permits and dust suppressionregulations and procedures are applicable and implemented at the PCMS. Disturbed areas largerthan 25 acres or areas that have been disturbed 6 months or longer are subject to site-specific statepermits, which implement BMPs.3.3.11 NOISENoise levels in unincorporated areas in El Paso County are regulated under Ordinance No. 02–1, OrdinanceConcerning Noise Levels in Unincorporated El Paso County. Section 5 of this ordinancespecifies acceptable ambient noise levels that are presented in Table 3-4.Table 3-4 Maximum Permissible Noise Levels in Unincorporated El Paso CountyLand UsesMaximum Noise (dbA)7:00 a.m. to 7:00 p.m.Maximum Noise (dbA)7:00 p.m. to 7:00 a.m.Residential property or Commercial area 55 50Industrial area or Construction Activities 80 75Non-specified areas 55 50Notes:Sound levels shall be measured in dbA as provided for in Section 6 of Ordinance 02-1.In the hours between 7:00 a.m. and 7:00 p.m., the noise levels permitted by this section may be exceeded by 10 db(A) for a period not toexceed 15 minutes in any 1-hour period.3.3.11.1 Fort CarsonNoise-sensitive areas adjacent to FTC consist of numerous communities and residential developments.To the north, these areas include Cheyenne Mountain State Park and the communities of Colo-February 2008 3–177 2/25th SBCT Final EIS