Environmental Analysis, SWCA Inc., Environmental Consultants
The following major findings of the environmental assessment by SWCA Inc, Environmental Consultants,
are contained in their January 22, 1998, report:
"Biological Resources: It is extremely unlikely that the proposed project would adversely impact
any special status species or their habitat. There are no areas in the project area where vegetation
is especially important for scenic value, screening and/or buffering, or soil stabilization."
"Mitigation of Riparian Areas: The project area falls within an area classified as mesoriparian habitat by Pima County.
Impacts within this area, which are estimated from 1.82 to 4.55 acres, would need to be mitigated
at a ration of 1:5 to 1. The cost of mitigation is estimated to be on the order of $100,000 to
$200,000."
"Visual Impact Analysis: Viewsheds throughout the project area have been heavily modified by
human use, including residential developments, utility lines, and roadway construction.
Visual quality impacts associated with the proposed extension would be mitigated by existing
vegetation."
"Air Quality Impacts: Emissions of carbon monoxide and other pollutants
would be reduced by approximately 8 to 16% [in the project area].
These reductions would result from 1) improved traffic circulation in the project area, and
2) reductions in total vehicle miles traveled. Reductions in emissions
would reduce potential damages associated with respiratory illness, vegetation effects,
soiling of materials, and aesthetic degradation."
The entire SWCA report can be viewed here:
Part I,
Part II.
