2018-06-29_PERMIT FILE - C1981025

• Permit No: C1981025
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2018
• Doc Name: page 3-58 to 3-137
• Section_Exhibit Name: 3.0 Environmental Part 2
• Media Type: D
• Archive: No

i ~ Snowmass recommends a monitoring program consisting of quarterly
measurements of ton ductivity, pH, water temperature, and flow at the
same four sites on North Thompson Creek and Middle Thompson Creek. On
the Roaring Fork River, measurements of conductivity, pH and water tem-
perature would be monitored quarterly. Flow would be determined from
the USGS gaging station at Glenwood Springs.
Water quality samples would be Collected semi-annually at all stations
for the following parameters:
Bicarbonate
Calcium
Carbonate
Chloride
Copper
Hardness

1 ron
Magnesium
Ammonia
Nitrate
Potassium
Total Dissolved Solids
Suspended Solids
Sulfate
Zinc
One sample would be collected during peak flows, when most of the
parameters are in solution and mobile. The other sample would be
collected during baseflow in late fall when the parameters are at
their highest concentrations.
This recommended monitoring program would show seasonal variations in
field measurements and monitor water quality at the times when the
parameters are most mobile and at their highest concentrations. The
recommended parameter list concentrates on those parameters which are
most prevalent. This program would also permit the preparation of
trilinear diagrams and allow water quality to be compared from year to
year. Ion balances could also be calculated.
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