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2013-06-28_PERMIT FILE - C1981008A
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2013-06-28_PERMIT FILE - C1981008A
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Last modified
8/24/2016 5:21:49 PM
Creation date
7/26/2013 10:59:46 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
Permit File
Doc Date
6/28/2013
Doc Name
Revegetation
Section_Exhibit Name
Section 2.05.4(2)(e) Revegetation
Media Type
D
Archive
Yes
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As are recommended in Rule 4.15.11(2) & (3), during field sampling for cover, at least 15 samples <br />(observational units) will be made at each site. For production sampling at least 30 transects will <br />be sampled from each area. Sample adequacy will be tested after 15 cover and 30 production <br />samples are taken. Sampling may continue if necessary to reach sample adequacy, or sampling <br />may be terminated before sample adequacy is reached if an alternative statistical method (approved <br />by DRMS such as the reverse null test) can be used that does not require demonstration of sample <br />adequacy. A maximum sample size of 50 transects will be used in all revegetation monitoring. <br />Alternative procedures will require a minimum of 15 or 30 transects, as detailed below. Because <br />dry- weight production data will not be available until samples are air -dried in the laboratory, sample <br />adequacy will initially be calculated on fresh weights of clipped material, then recalculated later for <br />air -dried material. <br />Reclaimed area cover and production will be compared to a standard equal to the mean values <br />measured at the reference area by sampling, as described below. Revegetation will be considered <br />"successful" if the mean value for the reclaimed site can be demonstrated to equal or exceed "Q" <br />(Q =90% of the standard). One of the following four methods will be used to compare mean values <br />at reclaimed sites to Q, depending on the mean values and whether sample adequacy was reached <br />during sampling. <br />1) If sample adequacy exists at the reclaimed site and the reference area, and the reclaimed site <br />mean is equal to or greater than Q, no statistical comparison is necessary and revegetation at the <br />reclaimed site will be deemed successful for the parameter in question. This complies with the <br />provisions of DRMS Regulation 4.15.11(2)(a). <br />2) If sample adequacy exists at the reclaimed site and the reference area, and the mean value at <br />the reclaimed site is less than Q, a "standard null' one -sided t -test with alpha error probability of <br />0.10 will be used, in conformance with DRMS Regulation 4.15.11(2)(b), using the general form of <br />the one -sided t -test as follows: <br />(June 2013 MR 86) 2.05.4(2)(e) - 33 <br />MR No <br />Appry red <br />,9- 0 ,/un. .2 013 <br />
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