9343

• UCREFRP Catalog Number: 9343
• Author: Greve, A. I., N. E. Spahr, P. C. Van Metre and J. T. Wilson.
• Title: Identification of Water-Quality Trends Using Sediment Cores from Dillon Reservoir, Summit County, Colorado.
• USFW Year: 2001.
• USFW - Doc Type: Denver.
• Copyright Material: NO

Table A2. Concentration of polycyclic aromatic hydrocarbons in seven bottom-sediment core samples from Dillon Reservoir, 1997-Continued
[<, less than; E, estimated value; DLN, Dillon Reservoir near the dam; DSU and DSL, upper and lower part of the Snake River arm; DBU and DBL, upper and lower part of Blue River arm;
DTU and
DTL, upper and lower part of Tenmile Creek arm. All concentrations are in micrograms per kilogram. The minimum laboratory reporting level is determined in part by the amount of material
available
for analysis; less material was analyzed from the core gathered near the dam (DLN)]
Core Depth Pyrene C3-178 C4-178 1-methyl- Cl-202 C2-202 C5-178 Benz(a) Chry- C3-202 Cl-228 C4-202 C5-202 C2-228
identifier (centimeters) isomers isomers pyrene isomers isomers isomers anthracene sene isomers isomers isomers isomers isomers
Minimum Laboratory 10 10 10 10 10 10 10 10 10 10 10 10 10 10
Reporting Level
DLN 0-2 43.8 15.7 <10 E3.0 28 38.8 <10 13.5 35.8 11.5 15.2 E7.4 <10 8
DLN 2--4 64.7 25.1 E8.1 E4.2 48.5 67.3 <10 23 56.1 29.9 32.3 16.2 <10 18.3
DLN 4-6 39.5 18.8 E5.3 E3.0 30.4 44.1 <10 13.6 35.7 19.3 17 10.2 <10 17.7
DLN 6-8 39.9 33.6 10.7 E7.3 41.4 50.1 <10 E19.2 39.3 <10 37.8 <10 E7.8 24.6
DLN 8-10 36.3 17.1 E9.3 E7.7 36.9 37.5 <10 E16.9 34.9 E8.5 31.1 <10 <10 18.9
DLN 10-12 29 44.5 10.4 E7.3 40.6 43.2 <10 E14.6 36.4 E8.3 34.4 <10 E8.4 22
DLN 12-14 23.3 33.9 E8.4 E6.3 32.2 35.7 <10 E12.1 28.4 E6.3 30.8 <10 <10 23.2
DLN 14-16 14.9 21.2 E6.2 E2.3 21.8 26.1 <10 E4.5 19.3 16.1 15.4 <10 <10 14.3
DLN 16-18 15.5 22.2 E6.5 E1.8 20.2 33.9 <10 E6.2 20.2 16.8 17.8 <10 <10 15.3
DLN 18-19 11.6 24.9 E7.6 E2.3 19.6 27.1 <10 E3.4 17.1 13.5 14.1 E7.8 E2.7 12.3
Minimum laboratory 5 5 5 5 5 5 5 5 5 5 5 5 5 5
reporting level
DBU 0-2 42.9 33.4 8 E4.0 31.4 22.5 <5 E18.6 34 13.3 19.9 12.6 7.2 10.9
DTL 0-2 25.9 25.3 7.1 E3.8 27.4 27.5 <5 E12.7 23.6 10.6 21.7 11.5 6.8 16
DTU 0-2 47.7 34.4 10.7 E4.5 39.1 33.9 <5 E22.3 37.2 E4.0 24.5 14.2 9.5 15.4
DSL 0-2 38.4 8.9 10.2 E4.0 22.1 22.7 <5 E16.1 31.2 12.3 18.5 12.1 <5 11.6
DSU 0-2 42.1 15.1 15.5 E4.6 38.8 28 <5 E21.3 36.8 14 32.6 11.6 <5 19.6
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