Organochlorine compounds in streambed sediment

Table1. Organochlorine compounds in sediment from the Puget Sound Basin, September 1995 (micrograms per kilogram dry weight in less than 2 millimeter size fraction bottom material unless otherwise specified; MDL, method detection limit; nd, nondetect or below MDL; (), detection below MDL; E, detection level different from MDL, --, no published Canadian guidelines)                            
Site type       agricultural agricultural agricultural agricultural urban urban urban urban urban urban urban urban urban urban forest reference reference reference
  MDL Interim Canadian sediment quality quidelines, threshold effects level1 Interim Canadian sediment quality quidelines, probable effects level 1 Bertrand Creek near Lynden, WA Fishtrap Creek at Flynn Road at Lynden, WA Newaukum Creek near Black Diamond, WA Nooksack River at Brennan, WA Big Soos above hatchery near Auburn, WA Duwamish River at golf course at Tukwila, WA Springbrook Creek at Tukwila, WA Juanita Creek at La Juanita, WA West Branch Kelsey Creek at Bellevue, WA Leach Creek near Steilacoom, WA Miller Creek near Des Moines, WA North Creek below Penny Creek near Bothell, WA Thornton Creek near Seattle, WA Green River above Twin Camp Creek near Lester, WA Nooksack River at North Cedarville, WA Rock Creek near Maple Valley, WA Rock Creek at Cedar Falls near Landsburg, WA North Fork Skokomish River at Staircase Rapids near Hoodsport, WA
USGS site number       12212500 12212100 12108500 12213140 12112600 12113390 12113375 12120490 12119850 12091300 12103326 12125900 12128000 12103380 12210700 12118500 12113375 12056495
Aldrin 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Chloroneb 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(20) nd nd
Dacthal (DCPA) 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Dieldrin 1.0 2.85 6.67 nd nd nd nd nd nd nd nd nd nd nd nd 1.3 nd nd nd nd nd
Endrin 2.0 2.67 62.4 nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(10) nd nd
Heptachlor 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Heptachlor epoxide 1.0 0.6 2.74 nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Hexachlorobenzene 1.0 -- -- nd 2.6 nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Isodrin 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Lindane (gamma-BHC, gamma-HCH) 1.0 0.94 1.38 nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Mirex 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Oxychlordane 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Pentachloranisole 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
PCB 50 34.1 277 nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Toxaphene 200 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
Endosulfan 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
alpha-BCH 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
beta-HCH (beta-BHC) 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(5) nd nd
cis-Chlordane 1.0 4.5 8.9 nd nd nd nd nd nd nd nd nd nd nd nd 1.6 nd nd nd nd nd
cis-Nonachlor 1.0 -- -- nd 2.5E nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
cis-Permethrin 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(20) nd nd
o,p'-DDD 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(5) nd nd
o,p'-DDE 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
o,p'-DDT 2.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
o,p'-Methoxychlor 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd
p,p'-DDD 1.0 3.54 8.51 nd nd nd nd nd nd nd nd nd nd nd nd 4.6 nd nd nd nd nd
p,p'-DDE 1.0 1.42 6.75 nd 1.8 nd nd nd nd nd nd nd nd nd nd 6.9 nd nd 1.7E nd nd
p,p'-DDT 2.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd 8.1 nd nd nd nd nd
p,p'-Methoxychlor 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd(20) nd nd
trans-Chlordane 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd 1.2 nd nd nd nd nd
trans-Nonachlor 1.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd 1.7 nd nd nd(5) nd nd
trans-Permethrin 5.0 -- -- nd nd nd nd nd nd nd nd nd nd nd nd nd(8) nd nd nd(20) nd nd
organic carbon (grams per kilogram)       8.1 20 8.5 3.2 19 3.9 20 4.5 13 3.1 4.8 11 9.1 5.9 12 2502 14 11
inorganic carbon (grams per kilogram)       nd nd nd nd nd nd nd nd nd 0.2 nd nd 0.9 nd nd nd nd nd
organic + inorganic carbon (grams per kilogram)       8.1 20 8.5 3.2 19 3.9 20 4.5 13 3.3 4.8 11 10 5.9 12 250 14 11
particle size (percent < 62 micron)       5 9 7 8 19 5 26 5 10 5 9 4 7 4 33 17 4 6
duplicate size fraction (percent < 62 micron)         8                     6          
                                           
1CCME(Canadian Council of Ministers of the Environment), 1995, Protocol for the derivation of Canadian sediment quality quidelines for the protection of aquatic life: Winnipeg, Manitoba, report CCME EPC-98E, Task Group on Water Quality Guidelines, 38 p.

2The value for organic carbon is very high for this sample. The value has been verified by the U.S. Geological Survey National Laboratory, but may not represent typical conditions in this stream.		                            

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