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WSP03172
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Last modified
1/26/2010 12:49:01 PM
Creation date
10/11/2006 11:35:46 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8273.500
Description
Colorado River Basin Salinity Control - Federal Agencies - EPA
Basin
Colorado Mainstem
Water Division
5
Date
7/1/1982
Title
State-EPA Agreement 1982-83 and 1983-84
Water Supply Pro - Doc Type
Report/Study
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<br />2. Air Pollution <br /> <br />..... <br />-.J <br />f'.j <br />t\:>> <br /> <br />There are three types of air quality concerns in Colorado. The first pertains <br />to areas of the State where pollution levels exceed Federal or State ambient <br />air quality standards. The second concerns maintaining air quality in areas <br />where it is found to be acceptable. The third pertains to air quality issues <br />that have not been addressed by Federal or State standards. An example is <br />visibility in urban and rural areas. <br /> <br />., <br /> <br />A) Air Quality in Nonattainment Areas <br /> <br />There are number of designated nonattainment areas in Colorado where air <br />quality standards are being exceeded due to man's activities. The <br />nonattainment designation requires that the State develop a plan to reduce <br />emissions to acceptable levels by a specific date (1982 except where an <br />extension to 1987 was approved). There are also a number of areas in Colorado <br />where monitoring shows an air quality standard is being violated, but for a <br />number of reasons, such as uncertainty regarding the source of the problem, no <br />formal plan has been developed. <br /> <br />The current nonattainment areas in the State are listed below. The State <br />Implementation Plan (SIP) for these areas was originally prepared in <br />197cl-1979. The State and local agencies have been revising the plans for the <br />carbon monoxide (CO) and oxident (Ox) areas. The revised SIP plans will <br />include a number of additional controls to meet ambient standards for CO and Ox <br />by 1987. <br /> <br />1) Fort Collins Area <br /> <br />Monitoring continues to show violations of the 8-hour carbon monoxide and <br />annual total suspended particulate standards. Inventories indicate that <br />operation of vehicles on paved and unpaved roadways are the major <br />contributors to the problem. <br /> <br />2) Greeley Area <br /> <br />Air quality monitoring in Greeley shows violations of the 8-hour carbon <br />monoxide and annual primary particulate standards. The current emissions <br />inventory for the area shows that the majority of emissions are vehicle <br />related. No determination on the validity of the ozone violations have been <br />made. Again, the operation of vehicles on paved and unpaved roadways are <br />the major contributors to the problem. <br /> <br />3) Denver Area <br /> <br />Air quality in the Denver area continues to exceed carbon monoxide, <br />particulate and ozone standards. Recently updated inventories indicate that <br />the operation of vehicles is the major contributor to the problem. <br /> <br />-7- <br /> <br />_'h <br />
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