PROJ00077

• Contract/PO #: FS0008X
• Contractor Name: Longmont, City of
• Contract Type: Loan
• Water District: 0
• County: Boulder
• Loan Projects - Doc Type: Feasibility Study

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TABLE I
SUMMARY OF FIELD PERMEABILITY TESTS
Estimated Calculated
Type of Interval Total Assumed Inflow Permeability Comments &
Hole No. Test Tested Head (Ft.) (GPM) (Ft/Yr) Description
B-3 Packer 6-21 25.46 9.7 1740 Avg=1920 Ft/yr
19.53 9.0 2100 Mat'l: 30% concrete-
70% Bedrock (Granite
Gneiss)
B-4 Packer 19-30 47.71 12.8 1220 Avg=1300 Ft/yr
38.73 11.7 1380 Mat'l: 50% Concrete
50% Bedrock (Granite
Gneiss)
8-4 Packer 14-25 35.89 16.0 2030 Avg=2330 Ft/yr
28.91 14.5 2280 Matll: 15% Concrete-
21. 31 12.5 2670 85% Bedrock (Granite
Gneiss)
B-4 Packer 9-20 33.16 13.4 1840 Avg=2040 Ft/yr
32.37 11.5 2240 Matll: Concrete
8-4 Packer 2-13 16.45 10.9 3020 Avg=3690 Ft/yr
10.26 9.8 4350 Matll: Concrete

R-4

Falling head test was attempted but testing was precluded since the
take of the hole exceeded the capacity of the available pump (50 GPM).
No fluid loss was ohserved from either face of the dam.

B-2

Packer testing was precluded hecause of caving. A falling head test
was attempted but was precluded due to leakage through the faces of
the dam which exceeded the capacity of the available pump (50 GPM).

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