PERMFILE112394

• Permit No: M1980047
• IBM Index Class Name: Permit File
• Section_Exhibit Name: EXHIBIT H WILDLIFE INTRODUCTION
• Media Type: D
• Archive: No

• Parachute Creek, it could be toxic or have adverse effects on
aquatic organisms. The severity of impact depends on the sub-
stance, location, and time of release. Large, uncontrolled spills
would rapidly move through the stream and would affect nearly
all stream inhabitants. Small spills or continuous low-level
discharges may affect immobile species in the immediate vicinity
of the source of contamination.
Colony will take every precaution to prevent contaminants or spills
from entering the creek or river system. Spills will be controlled
at all stages of the operation.
Increased access to Parachute Creek as a result of road construc-
tion for the project will indirectly impact aquatic organisms.
Population influx may cause an increase in domestic wastes enter-
ing Parachute Creek in the lower reaches and may increase fishing
pressure. Increased fishing pressure on Northwater Creek may
affect the existing population of endangered Colorado river cut-
• throat trout; however, surveys by Flickinger et al. (1973) indi-
cate that the reaches of the streams to be directly impacted
do not support significant populations of trout or other game
species. Population influx may cause an increase in domestic
wastes entering the streams outside of the permit area; however,
it is not anticipated .that any residential development will be
allowed in the Parachute Creek valley upstream of the City of
Grand Valley.
The diversion of 12.5 cfs of water
increase the salinity of the river
1/60th of 1 percent (Colony 1974),
rado River, water will be released
compensate for Colony's diversion,
increases in salinity may be expec
from the Colorado River will
at Hoover Dam by no more than
During low flow of the Colo-
from upstream reservoirs to
At the most, only negligible
ted.
•
H-17