2009-03-04_REPORT - M1973021

• Permit No: M1973021
• IBM Index Class Name: REPORT
• Doc Date: 3/4/2009
• Doc Name: Annual Report
• From: Tetra Tech
• To: DRMS
• Permit Index Doc Type: Annual Fee/Report
• Media Type: D
• Archive: No

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APPENDIX A:
South Quarry, Bench 6880 RMR Data
Morrison Quarry
133-23514-08002
Strike and Dip Orientations:
Average Strike Average Dip Direction Strike from Strike to Dip from Dip to
'et 1 (Vertical) 330 75 NE 120 335 60 90
iet 2 (Vertical) 60 80 SE 15 90 75 90
iet 3 (Horizontal) 5 25 SE 5 360 10 38
'et 4 (Minor)
'et 5 (Minor)
Estimated Strength of Intact Rock Material:
Designation: Compressive Strength Range Estimated in Field
Very High (15) >250 Mpa (>36,260 psi)
High (12) 100-250 Mpa (14,500-36,260 psi)
Medium High (7) 50-100 Mpa (7,250-14,500 psi) 50 - 100 MPA
Moderate (4) 25-50 Mpa (3,625-7,250 psi)
Low (2) 5-25 Mpa (725-3,625 psi)
Ve Low 1 1-5 M pa 145-725 psi)
Estimated Drill Core Quality (RQD)
)esignation: RQD Percentage Range Estimated in Field
Excellent Quality (20) 90-100%
3ood Quality (17) 75-90% 75-90%
-air Quality (13) 50-75%
'oor Quality (8) 25-50%
fery Poor Quality (3) <25%
Spacing of Discontinuities
Set 1 Set 2 Set 3 Set 4 Set 5
tery Wide (20) >2m (>6.5 ft)
Vide (15) 0.6 - 2 m (2 - 6.5 ft)
Aoderate (10) 200-600 mm (8 - 24 in)
;lose (8) 60-200 mm (2.4 - 8 in) 2 - 72 in 3 - 60 in 1 to 72 in
/ery Close (5) <60mm (<2.4 in)
Groundwater Conditions:
Liters per 10 m of tunnel length Or Water Pressure
nflow (liters per 10 m) NONE NONE Notes: DRY (15)
)R Water Pressure Dry, Damp, Dripping, E