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

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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 Benzo(b) Benzo(k) Benzo(e) Benzo(a) Perylene C1-252 C3-228 C2-252 C4-228 Benzo(g,h,i)
identifier (centimeters) fluoranthene fluoranthene pyrene pyrene isomers isomers isomers isomers perylene
Minimum laboratory 10 10 10 10 10 10 10 10 10 10
reporting level
DLN 0-2 22,3 19.4 19.4 17.5 15.9 12.9 <10 E5.5 <10 21.4
DLN 2-4 39 33.1 31.7 28.6 29.3 E8.4 <100 <10 <10 18.4
DLN 4--6 24.4 21.4 19 16.8 24.8 17.2 <50 <10 <10 11.6
DLN 6-8 33 22.6 16.4 20.7 52.6 18.8 <10 <10 <10 20.7
DLN 8-10 28.9 21.1 14.6 14.8 44.4 16.5 <10 <10 <10 15.3
DLN 10-12 27 17.4 14.3 12.3 83.9 14.4 <10 <10 <10 35
DLN 12-14 20 12.8 11.2 10.8 123 18.8 <10 11.5 <10 19.3
DLN 14--16 E9.4 E5.5 <10 E4.6 204 E9.5 19.4 <10 <10 E5.4
DLN 16-18 11.5 E7.9 E9.6 E6.3 254 13.5 10 E5.0 <10 E6.6
DLN 18-19 E9.2 E4.6 E8.4 E3.4 368 10.1 <10 E5.5 <10 E6.4
Minimum laboratory 5 5 5 5 5 5 5 5 5 5
reporting level
DBL 0-2 23.3 19.8 14.8 16.4 26.3 12.7 <5 6 <5 13.5
DBU 0-2 27.6 23.2 15.7 21 44.3 14.9 <5 6.7 <5 14.3
DTL 0-2 18 13.5 11.7 13.8 46.6 13.6 E3.0 8.2 <5 11.2
DTU 0-2 25.4 25.8 17.6 25.8 150 15.7 <5 <10 <5 16.2
DSL 0-2 23.2 18.8 13.8 16.5 47.9 10.9 <5 7.7 E2.8 14
DSU 0-2 28.1 23.9 19.5 24 120 24.6 <5 14.6 <5 18.1

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