2009-12-23_PERMIT FILE - M2009018

• Permit No: M2009018
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/23/2009
• Doc Name: Adequacy Review-05
• From: DRMS
• To: CGRS Environmental Services
• Email Name: MAC
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Bill Ritter, Jr.
Department of Natural Resources
Governor
1313 Sherman St., Room 215
C O L O R A D O
Denver, Colorado 80203
D I V I S I ON OF
Phone: [phone]
RECLAMATION
FAX: [phone]
MINING
P.O. Box 1489
SAFETY
RE: Heintzelman Project (Pit 116); DRMS File No. M- 2009 -018; Adequacy Review - 05
Dear Mr. Adams,
The Division of Reclamation, Mining and Safety (Division) has identified several other
comments and questions that must be addressed prior to the Division's decision due date. Please
be advised that if you are unable to satisfactorily address any concerns identified in this
review before the decision date, it will be your responsibility to request an extension of the
review period. If there are outstanding issues that have not been adequately addressed
prior to the end of the review period, and no extension has been requested, the Division will
deny this application.
6.4.7 Exhibit G — Water Information
In CGRS's response to the Division's Adequacy Review — 04, it is stated that groundwater
investigations have been conducted within the mine area since 2000. In order for the Division
to waive the requirement for gathering 5 quarters of baseline data, the Applicant will need to
submit all of the data which they are using to characterize the local groundwater hydrology.
Upon submittal of such data, the Division will conduct an internal review to determine if the
gathering of baseline data may be waived.
2. The Applicant has indicated that values for the Haley well will be updated as determined by
actual field measurements. Please submit any additional data that has been gathered for the
Haley well including: well depth, water level from surface, well construction specifications,
depth of pump, etc.
3. The Applicant has proposed comparing field data to model predictions to determine if
mitigation will be required. As a regulatory agency, the Division must have predetermined
trigger points in place. If a trigger point is reached during dewatering operations, the Division
and the Operator can review the field data along with other influences to determine if
mitigation is required. The trigger points may be adjusted in the future as field data are
collected and compared to the model predictions.
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines
Bill Ritter, Jr.
December 23, 2009
Governor
Harris D. Sherman
Joby L. Adams, P.G.
Executive Director
CGRS Environmental Services
Ronald W. Cattany
Division Director
P.O. Box 1489
Natural Resource Trustee
Fort Collins, CO 80522
RE: Heintzelman Project (Pit 116); DRMS File No. M- 2009 -018; Adequacy Review - 05
Dear Mr. Adams,
The Division of Reclamation, Mining and Safety (Division) has identified several other
comments and questions that must be addressed prior to the Division's decision due date. Please
be advised that if you are unable to satisfactorily address any concerns identified in this
review before the decision date, it will be your responsibility to request an extension of the
review period. If there are outstanding issues that have not been adequately addressed
prior to the end of the review period, and no extension has been requested, the Division will
deny this application.
6.4.7 Exhibit G — Water Information
In CGRS's response to the Division's Adequacy Review — 04, it is stated that groundwater
investigations have been conducted within the mine area since 2000. In order for the Division
to waive the requirement for gathering 5 quarters of baseline data, the Applicant will need to
submit all of the data which they are using to characterize the local groundwater hydrology.
Upon submittal of such data, the Division will conduct an internal review to determine if the
gathering of baseline data may be waived.
2. The Applicant has indicated that values for the Haley well will be updated as determined by
actual field measurements. Please submit any additional data that has been gathered for the
Haley well including: well depth, water level from surface, well construction specifications,
depth of pump, etc.
3. The Applicant has proposed comparing field data to model predictions to determine if
mitigation will be required. As a regulatory agency, the Division must have predetermined
trigger points in place. If a trigger point is reached during dewatering operations, the Division
and the Operator can review the field data along with other influences to determine if
mitigation is required. The trigger points may be adjusted in the future as field data are
collected and compared to the model predictions.
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines