GENERAL51314

• Permit No: C1981024
• IBM Index Class Name: General Documents
• Doc Date: 9/23/1986
• Doc Name: Midterm Review Findings Document
• Permit Index Doc Type: Findings
• Media Type: D
• Archive: No

b. The discussions about SAR values and abandoned mine water
contamination in Section 4.05.1 should be modified to show the
changes in these conditions based on the dry mine operation
,i plan. These changes should be consistant with the discussions
in Sections 2.04 and 2.05.
The discussion of water quality standards and effluent
limitations in section 4.05.2 should be modified to reflect the
deletion of abandoned mine dewatering in the dry mine plan.
The operator may provide evidence that the dewatering plan
should be retained in the event that poor quality abandoned
mine drainage is intercepted. Because of the inaccuracy in
predicting the extent of old mine workings it is still possible
that bad water could be encountered even under the dry mine
operations plan.
d. The statement in paragraph 3, page 4.05-5 should be modified to
discuss erosion control methodologies for ditches excavated in
v highly erosive soils. Field observation indicates that
management of erosion is necessary in the western diversion
ditch, and may be required in other ditches as well.
e. The discussion of toxic spoil in Section 4.05.8 should be
~- expanded. The discussion should reflect the dry mine plan, and
be consistant with the Division's findings document.
f. All references to use of, or following Wyoming DEQ Guidelines
on soil placement and sampling during reclamation should be
changed to a statement such as "handling techniques will be
patterned after Wyoming DEQ or other pertinent guidelines". A
direct reference to the use of these guidelines should not be
made, as they are not formally accepted by the State of
Colorado. Such references are found in Sections 2.04 and 4.06.
g. 4.07.3 An additional statement should be added that calls for
abandonment reports as per Stipulation No. 17.
h. A discussion of the new regulations pertaining to certification
of blasting supervisors should be included in Section 4.08.
~/ i. A discussion of the approved loadout (TR-03) should be inserted
in Section 4.28, replacing the existing text.
IV. Maps and Accessory Documents (Volumes 2, 3 and 4)
a. The operator must review and revise all maps as necessary to
reflect the approved dry mine plan. All indications of the
~ multiple seam plan should be eradicated from these maps. The
exploration test pit should be included on all appropriate maps.
The Division will review the revised maps when submitted, and will
then be able to address specific adequacy questions to each map.