REPORT - 4/15/2009, 9:43:46 AM-JWD

• Permit No: P2009012
• IBM Index Class Name: REPORT
• Doc Date: 4/8/2009
• Doc Name: Site Characterization Report
• From: R2 Incorporated
• To: DRMS
• Email Name: ACS
• Media Type: D
• Archive: No

Table 2.3. Surface Water Sampling Program
Centennial Project
Weld County, Colorado

Analytical Parameter Maximum

Contaminant

Analytical Reporting Limit,
mg/l.
l Estimated Number of
LAB QC Samples (b) Estimated Number of FIELD C Samples
Q
Filter
in
Number of
Container(s)/
Sample
Hold Time
Level
(MCL, mg/L) Method (a) un
ess
otherwise
s ecifed f
P ()

S
MSD or DUP Field

Dup Trip
F

Blank Field

Blank Rinsate

Blank (c) field
? Preservation Minimum

Volume (d)
(from
collection)
Dissolved Metals (mg/L) (e)
Arsenic 0.01 E200.8 0.001
Boron 0.75 E200.7 0.1
Cadmium 0.005 E200.7/E200.8 0.001
Copper 1.3 E200.7/E200.8 0.01 Filter (0
45
Iron 0.3 E200.7 0.03 1
er 20 1 .
micron)

Lead
0.015
E200.8
0.01
1 per 20 samples p
samples
NA per 20
samples
Yes
then add 1-250 ml
poly
6 months

Manganese
0.05
E200.7/E200.8
0.01 HN03 to
pH < 2
Molybdenum none E200.8 0.01
Selenium 0.05 E200.8 0.001
Zinc 5 E200.7/E200.8 0.01
Total Metals (mg/l.)
Aluminum none E200.7/E200.8 0.1
Antimony 0.006 E200.8 0.001
Arsenic 0.01 E200.8 0.001
Barium 2 E200.7/E200.8 0.1
Beryllium 0.004 E200.7/E200.8 0.001 1-1 gallon

Cadmium
0.005
E200.7/E200.8
0.001
1 per 20
1
er 20
HN poly with
Chromium 0.1 E200.8 0.01 1 per 20 samples samples NA p
samples No 03 to
pH < 2 RAD analytes
and total 6 months
Iron 0.3 E200.7 0.03 recoverable
Lead 0.015 E200.8 0.01 metals
Uranium 0.03 E200.8 0.0003
Nickel 0.1 E200.7/E200.8 0.010
Mercury 0.002 E200.8 0.00025
April 2009 31 Site Characterization Plan