9624 ‎(2)‎

• UCREFRP Catalog Number: 9624
• Author: Bauch, N. J. and J. B. Bails.
• Title: Water-Quality Characteristics and Ground-Water Quantity of the Fraser River Watershed, Grand County, Colorado 1998-2001.
• USFW Year: 2004.
• USFW - Doc Type: \
• Copyright Material: NO

Table 6. Comparison of laboratory results for environmental and quality-control samples for 9 wells in the Fraser River watershed, 1998-2001.-Continued N
All water-quality constituents are in the dissolved form except for total coliform bacteria, MBAS (methylene blue active substances), and radon-222. no., number; Env., environmental
sample; QC, quality-control sample; Conc. diff., differ-
ence in concentration between environmental sample and quality-control sample; RU diff., absolute difference in lowest rounding unit; mg/L, milligrams per liter; shaded cells represent
differences greater than 1 rounding unit; <, concen-
tration less than the laboratory reporting level; E, estimated; nc, not calculated; ammonia, un-ionized ammonia NH plus ammonium [NH
[ 3] q ;nitrate is nitrate plus nitrite; --, no data; co]/100 mL, colonies per 100 milliliters; pCi/L, ,..'
picocuries per liter. For calculations, "less than" (<) concentrations are presumed to be zero]
Ammonia Ammonia plus organic Nitrite Nitrate
Site no. nitrogen
(fig. 1; Date Time Env. Conc. RU Env. Conc. RU Env. Conc. RU Env. Conc. RU
table 1) QC diff. diff. QC diff. dill. QC dill, dill. QC dill. dill.
mg/L (mg/L) mg/L (mg/L)
1 09/11/00 1330 <0.002 0.000 0 0.1 -0.1 1 <0.001 0.000 0 0.288 -0.002 2
1400 <0.002 0.2 <0.001 0.290
1 05/14/01 1500 0.003 0.003 3 0.2 0.0 0 <0.001 0.000 0 1.73 0.04 4
1515 0.006 0.2 <0.001 1.69
4 09/14/00 1400 0.004 -0.003 3 <0.1 0.0 0 0.001 0.000 0 1.16 0.01 1
1415 0.007 <0.1 0.001 1.15
5 09/13/01 1500 <0.002 -0.002 2 <0.1 0.0 0 <0.001 0.000 _ 0 0.143 0.002 2
1530 0.002 <0.1 <0.001 0.141
6 08/27/98 1130 0.002 -0.006 6 <0.1 0.0 0 <0.001 0.000 0 0.019 0.001 1
1200 0.008 <0.1 <0.001 0.018
7 05/05/99 0930 0.014 0.003 3 E 0.1 nc nc <0.001 0.000 0 <0.005 0.000 0
1000 0.01 1 E 0.09 <0.001 <0.005
8 09/13/00 0930 <0.002 0.000 0 E 0.1 0.0 0 0.004 0.001 1 4.72 -0.01 1
1000 <0.002 E 0.1 0.003 4.73
8 05/16/01 0900 0.005 -0.006 6 0.1 0.0 0 <0.001 0.000 0 3.10 1.37 137
0930 0.011 0.1 <0.001 1.73
8 09/13/01 0945 0.002 -0.002 2 <0.1 0.0 0 0.001 0.001 1 2.62 0.06 6
1000 0.004 <0.1 <0.001 2.56
9 05/03/99 1500 0.011 0.003 3 E 0.08 nc nc - -- 0.059 0.006 6
1530 0.008 0.1 <0.001 0.053
9 08/30/99 1500 <0.002 0.000 0 0.1 nc nc <0.001 -0.001 1 0.082 0.001 1
1530 <0.002 E 0.09 0.001 0.081
9 05115100 1500 0.002 -0.003 3 0.1 0.0 0 <0.001 0.000 0 0.088 0.003 3
1530 0.005 0.1 <0.001 0.085
9 09/10/01 1445 <0.002 0.000 0 0.1 0.0 0 0.001 0.000 0 0.110 0.000 0
1515 <0.002 0.1 0.001 0.110
10 05/07/99 0900 0.012 0.002 2 <0.1 0.0 0 <0.001 0.000 0 0.236 -0.006 6
0915 0.010 <0.1 <0.001 0.242
10 09/02/99 0900 0.005 0.005 5 E 0.08 0.00 0 0.001 -0.001 1 0.292 0.012 12
0915 <0.002 E 0.08 0.002 0.280
10 05/19/00 0830 <0.002 -0.0x12 2 <0.1 0.0 0 <0.001 0.000 0 0.252 -0.019 19
0845 0.002 <0.1 <0.001 0.271
11 08/31/99 1445 0.004 0.004 4 <0.1 0.0 0 0.001 0.001 1 0.225 0.000 0
1500 <0.002 <0.1 <0.001 0.225
11 05/17/00 1000 0.003 0.001 1 <0.1 0.0 0 <0.001 0.000 0 0.233 0.000 0
1015 0.002 <0.1 <0.001 0.233