1997-05-29_REPORT - M1977378

• Permit No: M1977378
• IBM Index Class Name: REPORT
• Doc Date: 5/29/1997
• Doc Name: April 1997 Monthly Report and DMR's
• From: Sunnyside Gold Corp
• To: CDPHE-WQCD
• Media Type: D
• Archive: No

April , 1997 Monthly Report
Page 3
- London Mine Portals - Waste Dumps
This is a "B List" project. Therefore, no work, permitting or
arrangement for access is planned until it becomes evident
that the work plan for this project requires implementation.
- Pride of the West Tailings
As of the end of April , 1997, work had not started on this
project due to snow-cover.
Sunnyside has scheduled this site for work plan implementation
during the second quarter of 1997 pending progress at other
sites and site conditions.
- Sunnyside Mine Pool Mitigation - Alkaline Solution Injection
During the month of April, this project was inactive with no
alkaline material or water being injected.
The water pool pH at the American Tunnel bulkhead on April 28,
1997 was 4 . 34 and the bulkhead pressure was 259 psi. Sunnyside
will continue to monitor these parameters.
- Cement Creek Diversion and Water Treatment
Cement Creek diversion and water treatment was active
continuously throughout April. The entire flow of Cement
Creek was diverted and treated along with the portal flow
from the American Tunnel . During April, flows diverted for
treatment ranged from 618 GPM to 1159 GPM.
Attached are results from flow and quality monitoring of;
Cement Creek diverted for treatment (CC-1B) ; American Tunnel
flow before treatment (AT-INFEL) ; dissolved metals analysis of
the AT-004 discharge; and Cement Creek below the AT-004
discharge point (CC-20) .
As explained in the December report, there was approximately
20-30 GPM more flow at CC-20 than being discharged from the
AT-004 discharge point. This water is made up of excess
reagent mix water being diverted for the water treatment
system from Minnehaha Creek and seeps and springs entering the
creek bed between the diversion point and the CC-20 monitoring