United States Department of Transportation
[PDF-2.09 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:A comprehensive research program for the characterization of storm water runoff from an Arizona
highway was conducted from January through December 2007. The study area covered a portion of
the Loop 202 freeway west of Mesa Drive to a retention basin east of Lindsay Road in Mesa, Arizona.
Storm water samples were collected from two storm water detention basins and a discharge point to
the Salt River. The study was conducted by manually collecting storm water samples with passive
automatic samplers and analyzing them for various roadway constituents. A primary objective of this
research effort was to establish baseline values of constituents in ADOT highway runoff, aiding in the
evaluation of related best management practices.
A total of 16 storm water samples was collected from the research area between January 2007 and
December 2007. The storm water sampling data indicates suspended solids (reported as total
suspended solids, or TSS) were present in 14 of the 16 samples collected and zinc (reported as total
zinc) was present in 13 out of 16 samples collected. Other heavy metals such as copper, lead, and
chromium were occasionally detected. Phosphorous and ammonia were detected only once during
this research program. TSS is the most significant pollutant, by mass, found in our nation’s
waterways, a standing consistent with the outcome of this research. It is important to note that
exceedance of an Environmental Protection Agency benchmark does not constitute a storm water
violation
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
