13.01.2013 Views

Dames & Moore, 1999 - USDA Forest Service

Dames & Moore, 1999 - USDA Forest Service

Dames & Moore, 1999 - USDA Forest Service

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

TABLE 5.5-2<br />

SUMMARY OF FALL 1998 SEDIMENT DATA, STEHEKIN<br />

HOLDEN MINE RllFS<br />

DAMES 8 MOORE JOB NO. 17693405419<br />

Notes:<br />

Sample ID<br />

STESED- STESED- STE-SED- STESED- STESED- STE-SED-<br />

101698-1 101698-2 1016983A 1016983B 101698JC 1016984<br />

Date Collectad 10H 6198 10116198 1011 6198 10H 6/90 10116198 1011 6198<br />

U - Parameter was analyzed for, but not detected above the reporting limit shown.<br />

- - -- ---- . Statisi!~t~_a!~ultion?!I -- --<br />

Approximate Distribution<br />

Standard<br />

Median<br />

Concentration Concentration Distribution Mean Deviation<br />

Metals. Total (malkq)<br />

' . I<br />

Aluminum 12,5W 12.600 16.300 17.400 20.000 18,100 12.500 20.000 Lognormal 16,207 16,850 3.037<br />

Arsenic .21.1 8.9 13.5 12.4 14.6 14.4 8.9 21.1 Lognormal 14.2 13.95 3.99<br />

Cadmium 0.4 0.3U 0.5 0.5U 0.6U 0.4U 0.4 0.5 either' 0.45 0.45 0.071<br />

Copper 24 21 40 39 48 40 2 1 48 Nonparamebic 35.3 39.5 10.5<br />

Iron 23.700 18.800 26.300 25.400 30.100 28.900 18,800 30.1 00 Lognormal 25,607 25,850 4,037<br />

Lead 8 6 11 12 14 10' 6 14 Lognormal 10.3 10.5 2.86<br />

Manganese 255 212 339 342 404 353 212 404 Normal 318 341 70.5<br />

I!'.?!. -- -- - -- -- 112 - . - 68.7 -. . 93 - 93.5 . - 113 - . .... 106 -. . - -- 68.7 - 1 13 - No"Paramet@- 97.7 .- 99.8 16.7 -.<br />

Conventional Analvses<br />

pH (S.U.) 5.8 J 5.5 J 5.6 J 5.6 J 5.8 J 5.5 J<br />

Total Solids (%) 60.3 62.5 40.8 36.5 40.2 47.4<br />

Total Organic Carbon (%) 1.6 1.9 3.8 4.2 3.3 3.1<br />

Total Volatile Solids (mglkg) 38,000 54.000 140.000 190.000 150.000 100.000<br />

Acid Volatile Sulfide (mglkg) 2.9 4.0 1.3U 1 .5U t.4U 3.5<br />

~ ---<br />

- -- ~<br />

J - Estimated Value<br />

' Statistical analyses including approximating sample distributions, means, standard deviations, medians and background 90th percentile<br />

were calculated using an Excel version 5.0 macro designed by the Washington Department of Ecology and their guidance found in<br />

Statistical Guidance for Ecology Site Managers. Toxics Cleanup Program (August, 1992).<br />

The Excel macro could not approximate either distribution due lo insufficient uncensored data points.<br />

NIA - Not Available. Therefore, the 90th percentile was not determined.<br />

H.Wolden\RI\Drafl final RI rpt\S-5\Tables\5-5.2 xls<br />

7/23/99 Page 1 of 1 DAMES R MOORE<br />

--<br />

.<br />

Both X<br />

21.193<br />

20.6<br />

MIA<br />

N/A<br />

32.297<br />

15.2<br />

420<br />

N/A

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!