REV103317

• Permit No: C1981008
• IBM Index Class Name: Revision
• Doc Date: 7/5/2000
• Doc Name: Review Letter
• From: Dan Mathews
• To: Harry Ranney
• Type & Sequence: TR41
• Media Type: D
• Archive: No

• • ii~iiiiiiiiiiiiiiii
STATE OF COLOIZ~DO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone [phone]
FAX: [phone]
DATE:
TO:
FROM:
RE:
July 5, 2000
Harry Ranney
Dan Mathews / ~}
New Horizon 1 TR
Revegetation Standards Revision
Permit C-81-008
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MI NING•SA FETY
Bill Owens
Governor
Greg E. Watcher
Evecunve Director
Michael B. Long
Division Director
I have reviewed the most recent adequacy responses, faxed earlier today from Greg I.ewicki. The submittal
was in response to my memo of June 29, 2000. The subminal did not specifically address the question
regarding applicability of the woody plant density standard (Item 6). I assume you are looking into that.
Let me know what you determine.
Item 10a. An essentially adequate dryland pasture production sampling protocol was provided. I interpret
the plan to require a minimum of 15 randomly located sample quadrat placements per sample block, with
additional sample quadrats taken if necessary to achieve sample adequacy based on the formula given on
amended page 22-26. One additional clarification that should be included in the plan, is that perennial
grasses, perennial forts, and annual species should be bagged and weighed separately, and noxious species
should no[ be included.
Item lOb. Amended text indicates that "sufficient bales will be weighed..." and documentation provided
for bond release. I would interpret this to mean that stunple adequacy will be demonstrated or that total
harvest data will be used (i.e. all bales will be weighed and reported). l would recommend that the text be
further amended to clarify this point.
Item IOc. There is still some wnfusion regarding sample adequacy formulas. The plan should be
amended to clarify that the simple formula as presented on page 22-24 would be used only in the even) that
statistical testing is not necessary to demonstrate success ((or either cover or production). The formula on
page 22-26 is acceptable whether statistical testing is necessary or not (for either cover or production).
Let me know if you have any questions. 1 will be meeting with the vegetation consultant at New Horizon
tomorrow and Friday, to review and observe bond release sampling for New Horizon li.