treasure valley road dust study: final report - ResearchGate

Table 2-2 Summer 2001 Silt Sampling Locations, Descriptions, and Mass Sampled
Site
Field
Sample ID
Lab ID
Sample
Date
Type
Width
(m)
Length
(m)
Separation
Between
Sampling
Locations (m)
Area per
sampling
location
(m 2 )
Total
area
for
site
(m 2 )
Net Mass
per
sampling
location
(g)
Total
mass for
site (g)
Riva Ridge North
BOISL028 RS622 7/12/2001 paved 3.9 3.1 15.2 12.1 37.2 1064.5 1645
of Reutzel Dr. BOISL029 4.2 3.0 12.6 402
BOISL030 4.1 3.0 12.5 178
Apple St. Between BOISL053 RS623 7/13/2001 paved 3.3 3.0 15.2 10.1 30.2 19 82
Wright and BOISL054 3.3 3.0 10.1 24.7
LaFayette BOISL055 3.3 3.0 10.0 38
13th St. North of
BOISL045 RS624 7/13/2001 paved 2.4 9.1 6.1 22.3 69.7 58 226
Hays
BOISL046 2.4 9.1 22.3 58.5
BOISL047 2.7 9.1 25.1 109
Front St. Between
BOISL061 RS625 7/14/2001 paved 3.8 6.1 12.2 23.4 71.2 80 314
3rd and 5th BOISL062 3.8 6.1 23.4 110
West Park Dr.
West of Milwaukee
Maple Grove North
of Tillamook
Garrity Blvd.
Between Cavalry
BOISL063 4.0 6.1 24.5 123.5
BOISL050 RS626 7/14/2001 paved 2.6 6.1 9.1 16.1 49.5 27 54
BOISL051 2.7 6.1 16.4 16.5
BOISL052 2.8 6.1 17.0 10.5
BOISL031 RS627 7/12/2001 paved 3.4 9.1 12.2 30.7 92.7 32.5 136
BOISL032 3.4 9.1 30.9 52
BOISL033 3.4 9.1 31.1 51
BOISL067 RS628 7/17/2001 paved 3.6 9.1 6.1 32.5 97.3 144.5 539
BOISL068 3.6 9.1 33.0 251.5
and 11th BOISL069 3.5 9.1 31.8 142.5
Amity Between BOISL064 RS629 7/17/2001 paved 3.9 3.0 12.2 11.8 36.7 75.5 220
Colorado and BOISL065 4.0 3.2 13.0 73.5
Diamond BOISL066 3.9 3.0 11.8 71
6th St. Between BOISL070 RS630 7/17/2001 paved 3.0 0.3 6.1 0.9 2.8 550.5 1155
6th Avenue and BOISL071 3.0 0.3 0.9 331.5
7th Ave BOISL072 3.0 0.3 0.9 273
BOISL073 RS631 7/25/2001 unpaved 4.6 0.3 45.7 1.4 4.2 7200
Pierce Park BOISL074 4.6 0.3 1.4
BOISL075 4.6 0.3 1.4
Cloverdale Farm
BOISL076 RS632 7/26/2001 unpaved 4.6 0.3 30.5 1.4 4.2 1975
Road
BOISL077 4.6 0.3 1.4
Road Near Lucky
Peak Dam
BOISL078 4.6 0.3 1.4
BOISL079 RS633 7/25/2001 unpaved 4.6 0.3 30.5 1.4 4.2 3135
BOISL080 4.6 0.3 1.4
BOISL081 4.6 0.3 1.4
Procurement of silt samples from paved roads requires that the road surface is initially
broom-swept to remove large debris such as pebbles and plant material. All of the road sections
sampled were free of large debris, which made broom-sweeping unnecessary. For each road
section, a pre-labeled, pre-weighed HEPA vacuum bag was installed in a backpack style vacuum
cleaner. The attachment used at the end of the vacuum cleaner hose was 4.2 cm by 23 cm in
dimension. Each section was completely vacuumed twice (once in the widthwise direction and
once in the lengthwise direction) by traversing the section in overlapping strips from one edge to
the other. Vacuum bags were weighed on-site after vacuuming and placed in airtight plastic bags.
Unpaved roads were sampled by gently passing a hand-held broom across the lane of
travel and collecting the swept material in a lobby pan. At each site, three sections of road,
separated by 30 m to 45 m were sampled. Sections were generally 1 ft in the along-lane
direction by 4.6 m in the cross-lane direction. Debris and dirt from parts of the road that were
outside the travel lane were not included in the sample.
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