HYDRO25053

• Permit No: C1991078
• IBM Index Class Name: Hydrology
• Doc Date: 4/19/1993
• Doc Name: HAMILTON MINE HYDROLOGIC MONITORING
• From: DMG
• To: J A STOVER & ASSOCIATES
• Permit Index Doc Type: CORRESPONDENCE
• Media Type: D
• Archive: No

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999
STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1 317 5hrrman SL, Room ?15
Denver, CO 80203
Phune: IlOll Rbb-356:
FAX: [phone]?-8106
April 9, 1993
J. A. Stover and Associates
743 Horizon Ct. Suite 205
Grand Junction, CO 81506
Re:. Hamilton Mine Hydrologic Monitoring
Dear Mr. Stover:
During a recent review of the hydrologic monitoring plan for the
Hamilton Mine, a few items that require some attention were noted. The
peiiiiit u'efiCieni125 (rill requiYE y0U t0 SUbmit d reVlSiOn tC CGrr2ct it~~"~.
1. Please make the following changes to the tables on page 3-2 of
Appendix 3.
A. Add flow rates and/or water level to the parameter lists.
B. Add units of measurement to the anaiysis resuits and
parameters lists.
C. Specify that all around water samples species will be
dissolved.
of got
a'" t- o~
', i~~Of,
Rov Rorner
Governor
michael B. Long
Die ision Direcmr
D. Specify that the species for all surface water samples will
be total recoverable except for:
1. Ammonia (Unionized)
2. Aluminum (Dissolved)
3. Iron (Total recoverable and dissolved)
4. Manganese (Total recoverable and dissolved)
2. Please explain why baseline sample analysis show results below the
detection limit.
3. Please add narrative in the text to describe the sampling is
accomplished and how flow rate measurements are taken.
4. On page 2.05-36, please eliminate the statement "A hydrologic
reclamation plan is not considered necessary at this time".