REP19624

• Permit No: M1988112
• IBM Index Class Name: Report
• Doc Date: 5/15/1995
• Doc Name: SAN LUIS PROJECT
• From: WESTEC
• To: DMG
• Media Type: D
• Archive: No

Third Perty Oversight
' San Luis Mina
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TABLE OF CONTENTS
Water, Waste & Lend, Inc.
June 9, 1994
1.0 INTRODUCTION ...................................... .......... 1
1 .1 BACKGROUND ................................ .......... 1
1 .2 PROJECT HISTORY ............................. .......... 1
1 .3 WORK SCOPE ................................. .......... 2
1.3.1 Task 1 -- Familiarization with Approved Plan ....... .......... 2
1.3.2 Task 2 -- Field Construction Oversight ........... .......... 2
1.3.3 Task 3 -- Oversight of Field Testing Program ....... .. . ....... 3
1.3.4 Task 4 -- Review of Related Technical Submittals .... .......... 3
1.3.5 Task 5 -- Review of Final Construction Certifications .. .......... 3
1.3.6 Task 6 -- Participation in Meetings with BMRI ...... .......... 3
1 .4 SCOPE OF REPORT ............................. .......... 3
2.0 REVIEW OF DESIGN AND GEOTECHNICAL ISSUES ........................ 4
2.1 INITIAL DESIGN REVIEW .................................... 4
2.2 DESIGN INTENT .......................................... 4
2.3 GEOTECHNICAL ISSUES ASSOCIATED WITH THE RAISE I EXPANSION ... 5
2.4 TECHNICAL SUBMITTALS ................................... 8
3.0 CONSTRUCTION OVERSIGHT AND QUALITY ASSURANCE TESTING ............ 9
3.1 CONSTRUCTION OVERSIGHT ................................ 9
3.2 QUALITY ASSURANCE TESTING .............................. 9
4.0 RAISEIEMBANKMENT .......................................... 11
4.1 MATERIALS SPECIFICATIONS ............................... 11
4.2 INITIAL CONSTRUCTION .................................. 13
4.3 TECHNICAL ISSUES ...................................... 13
4.4 FINAL CONSTRUCTION ................................... 13
5.0 DRAINAGE LAYER .............................................. 15
5.1 DESIGN ISSUES ......................................... 15
5.2 MATERIAL PLACEMENT ................................... 15
5.3 PERMEABILITIES ........................................ 16
5.4 FINAL CONSTRUCTION AND TESTING ......................... 18
5.5 DRAINAGE PIPE SPACING .................................. 19
6.0 LINER SYSTEM ................................................ 20
6.1 LOW-PERMEABILITY LAYER ................................ 20
6.2 SYNTHETIC LINER ....................................... 20
7.0 REFERENCES ................................................. 22
APPENDICES
A -- ENGINEER'S DAILY FIELD LOGS
B -- WEEKLY CONSTRUCTION ACTIVITY UPDATE REPORTS