Record Details

page 3-83

Digital Collections at BYU

Field Value
Title page 3-83 Final environmental impact statement on the Provo River Restoration Project, page 3-83
Coverage Electronic reproduction;
Format 3-83 text/PDF
Rights Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public
Language English; eng; en
Relation Central Utah Project; Western Waters Digital Library; 310.2 3102 3102 issues eliminated from further A analysis n a 1 vs 7 .7 ish iss none of the air quality issues raised during scoping were eliminated from flu fiu further ther analysis 310.3 3103 3103 issues addressed in the impact analysis the following issues were raised during scoping and are addressed in the air qua quality impact analysis what effects would the proposed action and alternatives have on air quality during construction what effects would increased recreational use of the provo river have on air quality would the agricultural impacts of the PRRP affect air quality 310.4 3104 description of impact area of influence the air quality impact area of influence includes areas along the provo river between jordanelle Jor danelle and deer creek reservoirs where the proposed action and alternatives would be constructed and roads that would be used by construction or recreation traffic primarily I highways 40 113 and 189 and river road map 31 3 1 in section 311.1 3111 shows the direct impact of influence 310.5 3105 3105 affected environment baseline conditions baseline conditions used for the air quality analysis are the same as existing conditions although air quality data have not been collected in heber valley the valleys air quality usually is excellent this has led to the designation of heber valley as a class II 11 attainment area subjecting it to national prevention of significant deterioration of air quality standards these standards are designed to prevent deterioration of air quality in attainment areas areas where the federal government has chosen to prevent degradation of excellent air quality the primary types of emissions in heber valley under baseline conditions are nitrogen oxides nox sulfur oxides sox particulate matter 383 38 3 8 measured as pm10 or particles less than 10 microns in diameter from vehicles smoke from fireplaces wood stoves and agricultural burning and dust from the tilling of agricultural fields these emissions are considered pollutants and are products byproducts by of combustion except for dust caused by wind erosion of soil inversion layers occasionally trap these pollutants in the valley when certain climatic conditions exist usually in the winter 3106 310.6 3100 310.0 3106 6 impact analysis 3106.1 31061 significance criteria the utah air conservation rules UACRs identify wasatch county as a class II 11 attainment area the impact area of influence is thus subject to national prevention of significant deterioration of air quality standards the state of utah has set limits on the maximum allowable increase in pollutant concentrations which vary by the class 1 I II 11 or III HI 111 ill ili of the attainment area designation class I 1 attainment areas are generally national parks monuments wilderness wild and scenic rivers and other similar areas where protection of air quality is a high priority class II 11 attainment areas allow greater concentrations of pollutants than class I 1 attainment areas but still have scenic features that required protection of air quality class II 11 attainment areas allow the greatest increase in concentrations of pollutants the air quality significance criteria are based on the limits on the maximum allowable increase as defined by the UACRs air quality impacts of the proposed action and alternatives would be significant if the applicable air quality standards would be violated the proposed action and alternatives would violate the standards if they emit more than 250 tons of ofnox oknox nox sox or particulates in any 12 month period of construction particulates include dust emissions and pollutants emitted from the burning of fuel especially diesel fuel burned by large trucks and other vehicles these standards only apply to direct air quality impacts of projects which include emissions from construction traffic and operation of construction equipment indirect impacts would include emissions from traffic induced by new recreation opportunity
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/7889

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