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Dames & Moore, 1999 - USDA Forest Service

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TABLE 7.2.2-lC<br />

COMPARISON OF SEDIMENTARY TOTAL METAL CONCENTRATIONS FROM RAILROAD CREEK<br />

(BASED ON SAMPLES COLLECTED FROM 1991-1997, EXCLUDES USGS SEDIMENT 8 CONCENTRATE DATA AND FLOCCULENT DATA)<br />

HOLDEN MINE RllFS<br />

DAMES 8 MOORE JOB NO. 17693405419<br />

Stabstical Notes: {Stat~slcal calculations were performed uslng Washington Department of Ecology's MTCAStat Excel V 5 Macro (Module 2 I), downloaded from the~r web slte )<br />

Maximum and m!nlmum concentratlons are based on detected values only<br />

Range of reporting llmits (RL) are based on results reported as not detected<br />

Dlstr~but~on IS determined based on the MTCA stat program by anabcng the data through the W Test" or 'D Agostmo's test"<br />

Where data a not lognormally nor normally datnbuted, the dlstnbul~on IS noted as 'Nerlher'<br />

When approximate dlstrlbution n reported as 'netther, the maxlmum concentration IS reported as the 95% UCL and IS presented in BOLD font<br />

The mean IS an arlthmetlc mean if data are normally dlstnbuted or B dtstnbution IS lndlcated as 'Neither The reported mean for lognormally distributed data IS a lognormal mean<br />

Statlstlcal anatysls was not performed on data sets where 50% or greater of the results were reported as not detected Only maxlmum and mlnimum concentrallons are reported, if applicable<br />

For these data sets, a calculated med~an n based on detected values only<br />

H:Wolden\DraR final ri rpt\S_7\eco ra\lables\7-2-2-1 -c.xls<br />

7/26/99<br />

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