_PERMIT FILE - M1981302 ‎(25)‎

• Permit No: M1981302
• IBM Index Class Name: Permit File
• Doc Name: AIR QUALITY
• Media Type: D
• Archive: No

(� activities at the site itself. Continued development in
surrounding areas, and overall growth in the Boulder-Front
Range-Denver area can be expected to add new sources of
pollution. At the same time, enforcement of more stringent
air quality regulations, and particularly limitations on
automotive emissions , can be expected to limit the increase
in general pollution levels. It seems most likely that air
pollution on the site will increase slightly over the next
10 to 15 years due to development in surrounding areas,
and will thereafter remain fairly stable. It is unlikely
that pollution levels will exceed standards , though there
undoubtedly will be brief periods of high particulate
concentrations due to adjacent construction and development,
in combination with high wind speeds and dry weather such
as normally occur in Boulder.
Pollutant Emissions
The only significant air quality effect of gravel mining
is the release of dust and small particulate in mining,
hauling, and processing gravel. The quantity of dust
released to the air is obviously a function of the size
and type of mining operation, mitigating measures taken,
• and climatic conditions. The United States Environmental
Protection Agency estimates, for a "typical gravel mining
operation" , release of 0. 1 lb. of suspended particulate
matter per ton of final processed material.
G-7