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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a Table A2. Concentration of polycyclic aromatic hydrocarbons in seven bottom-sediment core samples from Dillon Reservoir, 1997-Continued
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b [<, 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
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!!!. DTL, upper and lower part of Tenmile Creek ann. All concentrations are in micrograms per kilogram. The minimum laboratory reporting level is determined in part by the amount of
material available
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'< for analysis; less material was analyzed from the core gathered near the dam (DLN)]
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Co Core Depth 9H- C4-128 1-methyl-9H- Phenan- Anthra- C5-128 2-methyl- 4,5-methylene- C 1-178 1-methyl- C2-178 Fluoran-
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c identifier (centimeters) Fluorene isomers Fluorene threne cene isomers anthracene phenanthrene isomers phenanthrene isomers thene
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S' Minimum laboratory 10 10 10 10 10 Varied 10 10 10 10 10 10
lC reporting level
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C1l DLN 0-2 E2.6 <10 <10 33.3 E4.6 <10 <10 E4.3 36.7 10.5 25.5 47.4
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3' DLN 2-4 E3.8 <10 <10 60.5 12.1 <30 <10 E7.5 147 27 66.6 75
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... DLN 4-6 E2.8 <10 E2.6 40.5 E6.7 <10 <10 E5.0 71 26.9 43.9 46.4
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0 DLN 6-8 E4.1 <10 E6.5 39.2 10.9 <40 E8.6 E5.6 53.6 E7.4 62.6 48.4
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III E5.8 11.1 <20 E7.9 E5.8 54.8 E6.5 58.1 44.1
- DLN 8-10 E3.8 <10 39.6
0 E7.6 51.5 E6.4 66.8 32.5
3 DLN 10-12 E3.9 <10 E6.0 32.8 E9.2 <50 E4.9
g DLN 12-14 E3.3 <10 5.1 26.9 E7.6 <40 E6.2 E3.8 47.5 E7.1 55.2 24.3
0" DLN 14-16 E2.6 <10 E4.1 20.5 E3.9 <20 <10 E3.8 43.5 E9.6 43.6 15.5
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::D DLN 16-18 <10 14.7 E3.2 19.4 E3.0 23.8 <10 E3.9 40.9 10.3 41.6 15.8
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C1l DLN 18-19 E2.0 30.9 E3.0 17.4 E2.8 21.8 <10 E3.7 45.5 11.1 46.3 10.3
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3 DBL 0-2 E2.1 <5 E2.6 30.6 5.2 <5 E3.6 E3.5 52.1 5.6 52.1 38.1
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0 DBU 0-2 E2.6 <5 E2.6 29.9 6.2 <20 E3.6 E4.5 37.9 E4.7 39 50.8
0 DTL 0-2 E1.9 9.2 E2.3 19.9 E4.5 <5 E3.1 E3.1 33.9 10.1 37.7 29.5
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-? DTU 0-2 E3.8 <5 E4.2 30.1 7.1 <5 E3.8 5.4 97.4 6.2 50 53.7
0 DSL 0-2 E2.6 <5 E2.5 29.3 E4.9 E4.0 E3.4 E3.9 36.9 9.9 35.3 44.9
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0" DSU 0-2 E2.6 9.7 <5 28.5 7.6 <5 E4.1 E4.2 22.6 5.7 38 47.4
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