11037_Double Oaks Methane Assessment Report 2010_08_23

Methane Assessment Report
Double Oaks SiteDouble Oaks Site
Charlotte, North Carolina
Brownfields Project # 11037-07-60
H&H Job No PPA 024H&H Job No. PPA-024
April 23, 2010
2923 South Tryon Street
S ite 100Suite 100
Charlotte, NC 28203
704-586-0007
3334 Hillsborough Street
Raleigh, NC 27607
919-847-4241
#C-1269 Engineering
#C-245 Geology
Total Probe Date Methane CO2 Oxygen Balance Gas LEL
Probe ID Depth Diameter Measured (%) (%) (%) (%) (%)
(ft bgs) (inches)
MP-1 7 1 4/9/2010 0.0 2.0 19.3 78.7 0.0
MP-1 (A) -- -- 4/9/2010 0.0 0.1 21.2 78.6 0.0
MP-2 5 1 4/9/2010 0.0 0.2 21.0 78.8 0.0
MP-2 (A) -- -- 4/9/2010 0.0 0.0 21.2 78.6 0.0
MP-3 10 1 4/9/2010 0.0 3.2 16.0 80.7 0.0
MP-3 (A) -- -- 4/9/2010 0.0 0.1 21.1 78.7 0.0
MP-4 10 1 4/9/2010 0.0 1.4 19.5 79.0 0.0
MP-4 (A) -- -- 4/9/2010 0.0 0.1 21.2 78.6 0.0
MP-5 10 1 4/9/2010 0.0 0.9 19.9 79.1 0.0
MP-5 (A) -- -- 4/9/2010 0.0 0.1 21.0 78.8 0.0
MP-6 10 1 4/9/2010 0.0 4.5 12.8 82.7 0.0
MP-6 (A) -- -- 4/9/2010 0.0 0.1 20.9 78.9 0.0
MP-7 10 1 4/9/2010 0.0 10.2 8.6 81.0 0.0
MP-7 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-8 10 1 4/9/2010 0.0 1.6 19.3 79.0 0.0
MP-8 (A) -- -- 4/9/2010 0.0 0.1 21.2 78.6 0.0
MP-9 10 1 4/9/2010 0.0 3.2 17.6 79.1 0.0
MP-9 (A) -- -- 4/9/2010 0.0 0.1 21.2 78.6 0.0
MP-10 10 1 4/9/2010 0.0 3.5 14.9 81.3 0.0
MP-10 (A) -- -- 4/9/2010 0.0 0.1 21.1 78.7 0.0
MP-11 10 1 4/9/2010 0.0 6.2 14.6 79.2 0.0
MP-11 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-12 10 1 4/9/2010 0.0 2.3 18.2 79.4 0.0
MP-12 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-13 10 1 4/9/2010 0.0 1.6 18.5 79.7 0.0
MP-13 (A) -- -- 4/9/2010 0.0 0.0 20.9 78.9 0.0
MP-14 10 1 4/9/2010 0.0 2.0 18.7 79.1 0.0
MP-14 (A) -- -- 4/9/2010 0.0 0.0 21.1 78.9 0.0
MP-15 10 1 4/9/2010 0.0 9.5 2.0 88.4 0.0
MP-15 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-16 10 1 4/9/2010 0.0 0.7 19.9 79.3 0.0
MP-16 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-17 9 1 4/9/2010 0.0 1.5 18.2 80.2 0.0
MP-17 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-18 10 1 4/9/2010 0.0 1.1 18.3 80.4 0.0
MP-18 (A) -- -- 4/9/2010 0.0 0.0 21.1 78.9 0.0
MP-19 6 1 4/9/2010 0.0 1.9 19.6 78.5 0.0
MP-19 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-20 10 1 4/9/2010 0.0 1.8 14.7 83.4 0.0
MP-20 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-21 10 1 4/9/2010 0.0 1.4 16.3 82.1 0.0
MP-21 (A) -- -- 4/9/2010 0.0 0.0 21.1 78.9 0.0
MP-22 10 1 4/9/2010 0.0 2.0 16.7 81.2 0.0
MP-22 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-23 10 1 4/9/2010 0.0 2.4 16.6 80.9 0.0
MP-23 (A) -- -- 4/9/2010 0.0 0.0 21.1 78.9 0.0
MP-24 10 1 4/9/2010 0.0 1.5 18.5 79.9 0.0
MP-24 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-25 10 1 4/9/2010 0.0 2.0 17.6 80.3 0.0
MP-25 (A) -- -- 4/9/2010 0.0 0.0 20.9 78.9 0.0
MP-26 10 1 4/9/2010 0.0 2.8 15.5 81.6 0.0
MP-26 (A) -- -- 4/9/2010 0.0 0.0 21.0 78.9 0.0
MP-27 10 1 4/9/2010 0.0 1.9 20.0 78.1 0.0
MP-27 (A) -- -- 4/9/2010 0.0 0.0 21.1 78.9 0.0
Notes:
The methane detection limit is 0.1% methane
LEL = Lower Explosive Limit
(ft bgs) = Feet Below Ground Surface
(A) = Ambient air screened at that specific methane monitoring point location
H&H Job No. PPA-024
Table 1
Methane Probe Screening Results
Double Oaks Site
Charlotte, North Carolina
S:\AAA-Master Projects\Parker Poe Adams (PPA)\PPA-024 double oaks\Methane Screening\Methane Report\04-09-10 Gas monitoring.xls
SITE
TITLE
PROJECT
SITE LOCATION MAP
DOUBLE OAKS SITE
CHARLOTTE, NORTH CAROLINA
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
DERITA, NC 1993
DATE:
JOB NO:
REVISION NO:
FIGURE NO:
8-28-07 0
1PPA-024
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)