1992-06-05_GENERAL DOCUMENTS - C1981017 ‎(2)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 6/5/1992
• Doc Name: Bid Documents ‎(IMP)‎
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

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TO: Greg Squire and Candace Thompson, MLRD
FROM: Tom Colbert, IMS
DATE: 7/25/ 6
RE: Vegetation sampling at Coal Basin
This memo is to confirm the results of a telephone consultation I had with Jeff Deckler and
Mike Savage earlier this week while you were out of town)regarding vegetation sampling
along a proposed road align nt corridor at Mid-Continent's Coal Basin mine. George
Wear had asked me to confef with the Division before resuming soils and vegetation
baseline work for the propost d corridor, which we started last year but were unable to
complete because of an early blizzard. The following is a summary of what Jeff and I told
each other—
Status of sampling. Ten cover and ten woody plant density transects, and ten production
quadrats were sampled on I eptember 25, 1985, under adverse weather conditions.
Methods used for sampling wev identical to methods used in 1984 for vegetation sampling
at Mid-Continent's new waste disposal site and at the gas well exploration road.
(Vegetation baseline information for the new waste disposal site and the gas well
exploration road were submitted to the Division in 1984. The Division reviewed and
approved the submittal early in 1985, with a single stipulation pertaining only to
revegetation success standards)
Statistical sample adequacy as achieved for vegetation cover in the 1985 sampling.
Sample adequacy for product,on was not achieved. Sample adequacy for woody plant
density has never been achieved in our sampling of this vegetation type, which is strictly
not a woody vegetation type. The Division has previously stated that sample adequacy for
woody plant density is not required for sampling of this vegetation type.
Proposed 1986 completion of sampling. We have proposed only to conduct production
sampling along the proposed road alignment corridor this year. We anticipate being in the
field in mid- to late August. Q.iadrats would be clipped until sample adequacy is reached or
until 50 quadrats are sampled whichever occurs first. Data from last year's production
sampling will not be included in compiling new production data for baseline submittal, or
for calculating sample adequacy. Jeff Deckler and Mike Savage concurred that for the
Division's purposes, using 1985 cover data and 1986 production data would be acceptable
(vegetation cover is characteri tically high in this vegetation type and will not vary much
from year to year). We believe that the cover and woody plant density sampling conducted
last year should already provide an adequate baseline for those two parameters.
We will also conduct a soils baseline survey of the proposed corridor in August. Methods
for this survey will be the same as used previously for the gas well exploration road in
1984. This soils baseline information was also submitted to the Division in 1984, and was
subsequently reviewed and ap roved in 1985.
cc: George Wear,Jiff Deckled 111 1