2008-07-02_PERMIT FILE - C1996083A ‎(2)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 7/2/2008
• Section_Exhibit Name: Exhibit 14 Letters
• Media Type: D
• Archive: Yes

J. E. STOVER & ASSOCIATES
2768 COMPASS DRIVE, SUITE 101
GRAND JUNCTION, COLORADO 81506
PHONE: [phone], FAR 242-7908
,rte
u
NINE ENGINEERING
MINE RECLAMATION
CIYIL ENGINEERING
CONSTRUCTION MANAGEMENT
•
August 20, 1996
Bruce DeBrine
Division of Water Resources
1313 Sherman 5t., Room 818
Denver, CO 80203
Re: Bowie No. 2 Mine
New Permit Application
Permit C-96-083
3
Dear Mr. DeDrine:
The Division of Water Resources' (DWR) letter dated August 9, 1996
responds to BRL's letter dated August 5, 1996. One issue which
Chuck Roberts asked me to address to your attention was that of
drill hole sealing.
The DWR indicates there is a difference in drill hole sealing
requirements between the DWR and the DMG. BRL hereby requests a
variance from the DWR's water Well Rule 15.2 regarding the sealing
of unconfined wells which states:
Unconfined Wells - Wells completed into unconfined aquifers
shall be plugged and sealed by filling with drill cuttings,
clean sand or clean gravel to the static water level, then
with clean native clays, cement or high solid bentonite grout
to the ground surface. A permanent watertight cover shall be
installed at the top of the casing.
BRL has two basic reasons for requesting the variance. The first
is the fact that some of the monitoring wells on the property
penetrate more than one water bearing zone. The DMG's rules
adequately address sealing multiple aquifer drill holes. The
second reason for this request is to simplify the regulatory
process.
BRL requests the following sealing technique be approved which is
quoted from DMG rule 4.07(2):
Exploration holes, drill holes or boreholes, wells, or other
. underground openings completed in aquifers shall be sealed
using cement or other suitable sealant by placing the sealant
in the hale from the bottom to within 10 feet of the surface.