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Geocon Northwest, Inc. Field Reports Pt 307,4 GEOCON NORTHWEST, INC. GEOTECHNICAL CONSULTANTS _ Project No. P1150-05-02 March 15, 2004 RECEIVED Mr. Dirk Koopman Hoffman Construction Company JUN 21 2004 13500 SW Hall Boulevard Tigard, Oregon 97223 SHIELS OBLE L JoiNSEN Subject: TIGARD LIBRARY TIGARD, OREGON GEOTECHNICAL SERVICES Dear Mr. Koopman; This letter has been prepared to summarize geotechnical observations and testing completed at the new Tigard Library by Geocon Northwest between July 25, 2003 and May 12, 2004. Geocon Northwest was contracted to provide geotechnical recommendations and testing on an on-call basis to be scheduled by the contractor. Geocon Northwest provided services consisting of observation of foundation subgrade, elevator pit subgrade, pavement subgrade, and slab-on-grade subgrade. A combination of performance based proofrolls and nuclear density testing was used to evaluate compaction of structural fills, subgrade suitability, and compaction of slab-on-grade rock section and pavement baserock. Nuclear density testing was completed to evaluate compaction of utility trench backfill. It is Geocon Northwest's opinion that the portions of the project observed and tested by this firm were in general conformance with the project plans and specifications. Please contact the undersigned if you have any questions regarding this letter. Sincerely, Geocon Northwest, Inc. Heather Devine, P.E. Geotechnical Engineer cc: Mr. Charles Bahlman, Shiels Obletz Johnsen 8283 SW Cirrus Drive • Beaverton, Oregon 97008 ■ Telephone (503) 626-9889 ■ Fax (503) 626-8611 GEOCON --� 604 NOR T H WES TAl FIELD REPORT PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Wednesday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 826-8611 DATE 5/12/04 GRADING TRENCH BACKFILL OTHER REPORT NO. 31 ROJECT NAME PROJECT NO. Tigard Library P1150-05-02 CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING YES DATE A Hoffman Construction/John Jersey& Son, Inc. BY PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER ayeTca.st/W rm SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? YES NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT' LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP' WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY? YES NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND fIn NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the contractor's request to observe a proof-roll of the base rock section for the )utheast roadway and parking areas. The proof roll was preformed by a fully loaded dump truck. The prepared grade exhibited no deflection, during the performance based test, appearing firm, unyielding, and suitable for pavement at this time. Geocon Northwest representative will return to the site as upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 5/12/04 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE , SIGNATURE biOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations,and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. G TFL 8,Ori#44- NnR TH WES T�i FIELD REPORT PAGE 1 _ OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Thursday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 9/95/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 30 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/waTrn SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE AC11VES YOU DID AND P11)NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the contractor's request to observe a proof-roll of the base rock section for the parking lot and roadway south of the building pad and of the questionable areas noted yesterday as well as compaction testing for the entire area to be paved. The proof-roll was performed by a grader. The areas of concern noted by the Tigard City inspector yesterday had been re-worked and no discernable deflection was observed when passed over by the grader. Nuclear density tests were taken in these areas and test results were in compliance with project specifications. The rest of the area subjected to the performance based test appeared firm, unyielding, and suitable for pavement support. Nuclear density test results were 95% or greater than the maximum dry density at optimum moisture. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 9/25/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON NOR T H WES TC FIELD REPORT PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK WPdnPSday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATF 9/94l03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 29 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR u City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey& Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clenr/Cnn1 SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND OIl)NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the contractor's request to observe a proof-roll of the base rock section for the south entrance, southeast parking lot and the roadways. The proof-roll was performed by a fully loaded dump truck. The Tigard City inspector assigned to the project also witnessed the performance based test and questioned a few localized areas of minor deflection. The contractor will remove six or more inches of material, replace the rock and compact. The areas will be looked at again tomorrow when the rest of the area to be paved is ready for a proof-roll. The remainder of the prepared base rock section appeared firm, unyielding, and ready for pavement support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 9/24/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GtOCON H o R T H W EST FIELD REPORT PAGE L-. OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK TuPeda 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 50.3 626-9889-FAX 503 626-8611 DATE 9/23/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 28 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Cc)n1 SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE AcTIvmES YOU DID AND flIfl NOT OBSERVE DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the request of the contractor to check the compaction of base rock on northwest corner of the building pad. The contractor had placed and compacted %"-0" crushed rock. Compaction test results obtained with a nuclear density gauge were 95% or greater than the maximum dry density at optimum moisture as determined by ASTM D 1557, modified proctor. It is Geocon Northwest's opinion that the crushed rock in this area is suitable for structural support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 9/23/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GtOCON --r • 'N O R T H W FIELD REPORT PAGE 1 OF GEOTECHNICAL CONSULTANTS DAY OF WEEK nn 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9888-FAX 503 626-8611 DATE 4/22jQq 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. f7 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Sean Dixon N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES —INDICATE ACnvmES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN AND WHERE. Arrived on site at approximately 7:00 a.m. at the request of the contractor to check the compaction of base rock on the building pad in an area bounded by X.1 to X.6 and X.F to X.B. The contractor had placed and compacted %"-0" crushed rock. Compaction test results obtained with a nuclear density gauge were 95% or greater than the maximum dry density at optimum moisture as determined by ASTM D 1557, modified proctor. It is Geocon Northwest's opinion that the crushed rock in this area is suitable for structural support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Sean Dixon 9/22/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON <- FIELD REPORT -� N O R TH WES r ar PAGE 1 OF GEOTECHNICAL CONSULTANTS DAY OF WEEK T_ ue 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 9/18/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 26 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Sean Dixon N C CONTRACTOR PHONE PROJECT BRIEFING OYES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN - G PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects Smooth Drum Vibratory Roller APPROVAL DATE REV.DATE WEATHER SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVmES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site at approximately 10:00 a.m. at the request of the contractor to check the compaction of base rock on the building pad in an area bounded by 1 and 2 lines and D and E lines. The contractor had placed and compacted 3/4"-0" crushed rock. Compaction test results obtained with a nuclear density gauge were 95% or greater than the maximum dry density at optimum moisture as determined by ASTM D 1557, modified proctor. It is Geocon Northwest's opinion that the crushed rock in this area is suitable for structural support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Sean Dixon 9/18/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEw EST <�J FIELD REPORT PAGE 1 OF , GEOTECHNICAL CONSULTANTS DAY OF WEEKT 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 9/17/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 25 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Sean Dixon N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED N CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects Smooth Drum Vibratory Roller APPROVAL DATE REV.DATE WEATHER SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?O YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVmES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site at approximately 10:00 a.m. at the request of the contractor to check the compaction of base rock on the building pad in an area bounded by 3 and 4 lines and B and E lines. The contractor had placed and compacted 3/"-0" crushed rock. Compaction test results obtained with a nuclear density gauge were 95% or greater than the maximum dry density at optimum moisture as determined by ASTM D 1557, modified proctor. It is Geocon Northwest's opinion that the crushed rock in this area is suitable for structural support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Sean Dixon 9/17/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. G�OCON � .NOR T H W E S TAM/ FIELD REPORT PAGE 1 OF GEOTECHNICAL CONSULTANTS DAY OF WEEK Tuesda 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 ----x PHONE 503 626-9889-FAX 503 626-8611 DATE 9/16/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 24 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Sean Dixon N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED N CONTRACTORS SUPERINTENDENT/FOREMAN — G PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects Smooth Drum Vibratory Roller APPROVAL DATE REV.DATE WEATHER _ SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site at approximately 10:00 a.m. at the request of the contractor to check the compaction of base rock on the building pad in an area bounded by 1 and 3 lines and A and E lines. The contractor had placed and compacted 3/4"-0" crushed rock. Compaction test results obtained with a nuclear density gauge were 95% or greater than the maximum dry density at optimum moisture as determined by ASTM D 1557, modified proctor. It is Geocon Northwest's opinion that the crushed rock in this area is suitable for structural support. A Geocon Northwest representative will return to the site as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Sean Dixon 9/16/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON ��'� FIELD REPORT -1-R,` 507"� NOR T H WES T A PAGE I_ OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK TIIeGria 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 503 626-9889-FAX 503 626-8611 DATE 8/17/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 11 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENTPHONE 1 PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE — A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FI ELD TECHNICIAN ACTIVITIES—INDICATE ACTIVmES YOU DID AND On NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the request of the contractor to observe a proof-roll of fill material placed and compacted in the parking lot area. The fill material consisted of material mined on site and imported structural fill material from the building pad. The proof-roll was performed by a fully loaded dump truck. The subgrade appeared firm with little to no deflection and was suitable for construction. The subgrade for the east elevator pit was evaluated and was firm when probed with a 1/2" steel rod. The contractor intends to place and compact%"-0" rock in both elevator pits as well as the two over-excavated braced frame footings and will require a visit in the PM to check compaction. Returned to the site in the PM to check the compaction of g/"-0" rock used as backfill for the over-excavated areas located at A;1 to A;2 and A;1 to C;1 and both elevator pits. Test results obtained with a nuclear density gauge were within project specifications. A Geocon Northwest representative will return to the site upon request.. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 8/12/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCONFIELD REPORT , NOR TH WES T -0.- PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Monday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889 -FAX 503 626-8611 DATE R/11/fl 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 106 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Bryan Wavra C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Mostly Sonny/ROF SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVES YOU DID AND flIp)NOT OBSERVE DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site at approximately 2:15 p.m. at the request of the contractor to observe footing subgrade. The contractor completed, per Geocon Northwest's recommendation, an approximate 1 foot overexcavation of the braced frame footing along A-line between 2 and 3 lines. The material at footing subgrade was still somewhat loose, so compaction of crushed rock backfill with a hoe pac device was recommended to ensure compaction of the underlying subgrade soil. An overexcavation of approximately 18 inches was also completed, per Geocon Northwest's recommendation, for the braced frame footing along 1-line between B and C lines. The subgrade was probed with a 1/4-inch diameter steel rod and appeared suitable for structural support. Recommended overexcavation backfill was either 3/4"-0" or 1" ' "-0" crushed rock. Subgrade soil for the elevator pit at the intersection of 2.5 and C.5 lines was probed with a '/2-inch diameter steel rod and appeared suitable for foundation support. A Geocon Northwest representative will return to the site on Tuesday morning as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Bryan Wavra 8/11/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCONC FIELD REPORT . NORTH WES T • PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK MOnrla 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 503 626-9889-FAX 503 626-8611 DATF A/11/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 10a PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND OIn NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived on site in the AM at the request of the contractor to observe footing subgrade. The subgrade for a braced frame footings from A;1 to A;2 and A;1 to C;1 had a loose, crumbly appearance and odd coloration with dried root matter that was unsuitable for structural support. A one foot over-excavation was recommended for the braced frame footing located at A;2 to A;3 and an eighteen inch over-excavation was recommended for the braced frame footing located at A;1 to C;1. A return visit was requested in the afternoon to evaluate the subgrade after over-excavation. FIELD TECHNICIAN(PRINT) DATE HOURS 0.T. LIST ON-SITE VISITORS Staci Connors 8/11/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON • NOR TH WEST�i FIELD REPORT PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Mnnria 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 503 626-9889-FAX 503 626-8611 DATF 8/11/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 9 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Bryan Wavra C CONTRACTOR PHONE PROJECT BRIEFING O YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Mostly SI OF SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXL VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID ANDnln NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO.WHAT,WHEN,AND WHERE. Arrived on site at approximately 2:15 p.m. at the request of the contractor to observe footing subgrade. The contractor completed, per Geocon Northwest's recommendation, an approximate 1 foot overexcavation of the braced frame footing along A-line between 2 and 3 lines. The material at footing subgrade was still somewhat loose, so compaction of crushed rock backfill with a hoe pac device was recommended to ensure compaction of the underlying subgrade soil. An overexcavation of approximately 18 inches was also completed, per Geocon Northwest's recommendation, for the braced frame footing along 1-line between B and C lines. The subgrade was probed with al/2-inch diameter steel rod and appeared suitable for structural support. Recommended overexcavation backfill was either%"-0" or 1" 1/4"-0" crushed rock. Subgrade soil for the elevator pit at the intersection of 2.5 and C.5 lines was probed with a '/2-inch diameter steel rod and appeared suitable for foundation support. A Geocon Northwest representative will return to the site on Tuesday morning as requested by the contractor. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Bryan Wavra 8/11/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON C FIELD REPORT -. N o a r H w E s T I PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Thursday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 503 626-9889-FAX 503 626-8611 DATE 8/07/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 8 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/RA SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND fllfl NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the PM at the request of the contractor to observe perimeter footing subgrade on the north end of the building pad. The contractor had excavated for perimeter footing from approximate gridline intersection A;3 to A;8. The subgrade was probed with a '/2" steel rod and appeared firm and ready for construction. A Geocon Northwest representative will return to the site on Friday as requested. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 8/07/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON �� FIELD REPORT ' N O R T H WES T I PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Wednesday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 8/06/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 7 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Overcast/Warm SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND PIfl NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the contractor's request to observe a proof-roll of the building pad structural fill and to check the compaction of fill material mined on site and placed at the entrance and in the future parking lot area. The imported structural fill for the building pad was being placed in nine-inch lifts and compacted. The proof-roll was performed by a fully loaded dump truck. A few spots of deflection were observed and the contractor intended to aerate and re-compact. A return visit in the afternoon was requested. The contractor had placed fill material mined on site at the entrance and south side of the proposed parking lot. The fill contained a significant amount of organic material that will need to be removed. The contractor will rip the area and have the organic material picked out. Returned to the site in the PM to observe a proof-roll of the building pad structural fill. The proof-roll was performed by a fully loaded dump truck. The subgrade appeared firm and unyielding with no deflection. The parking lot fill had been cleared of organics and appears ready for construction. A Geocon Northwest representative will return to the site on Thursday as requested. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 8/06/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON FIELD REPORT -� NOR T H WES T PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Moncla 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 y PHONE 503 626-9889-FAX 503 626-8611 DATE 8104/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 6 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR u City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED • CONTRACTORS SUPERINTENDENT/FOREMAN — PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER C1ear/Hnt SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the request of the contractor to observe a proof-roll of the building pad structural fill and to check the compaction of fill material mined on site and placed at the entrance and middle to southern portion of the future parking lot. The imported structural fill for the building pad was being placed in nine-inch lifts and compacted. The proof-roll was performed by a fully loaded scraper and the observed area appeared firm with no discernible deflection. The contractor had placed fill material mined on site at the entrance and on the mid to south end of the parking lot. Compaction test results obtained with a nuclear density gauge were in compliance with specifications. A Geocon Northwest representative will return to the site on Wednesday 8/06/03 as requested. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 8/04/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCONc' FIELD REPORT -. N O R T H WES T Ii PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Thursday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 7/31103 O GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 5 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Keith Wallis N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NFXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND pin NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the request of the contractor. Jersey and son is on site and states he does not have any thing ready at this time and will call when he does. A Geocon Northwest representative will return to the site upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Keith Wallis 7/31/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON FIELD REPORT -. ' N O R T H WES T."-IV PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Wednesday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889 -FAX 503 626-8611 DATE 7/30/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 4 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED N CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the request of the contractor to observe a proof-roll of the building pad structural fill on the north end and to check the compaction of import fill material placed at the entrance and south half of the future parking lot. The imported structural fill for the building pad was being placed in nine-inch lifts and compacted. The contractor had placed approximately eighteen inches of fill material on the north end of the building pad area. The proof- roll was performed by a grader and the observed area appeared firm with no discernible deflection. The contractor had placed approximately one foot of import fill material at the entrance and in the southern portion of the parking lot. Compaction test results obtained with a nuclear density gauge were in compliance with specifications. A Geocon Northwest representative will return to the site upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 7/30/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON FIELD REPORT NOR T H WES T i PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Tuesday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 7/29/03 0 GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 3 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the request of the contractor to observe a proof-roll of the building pad subgrade prior to the placement of any needed fill material. The proof-roll was performed by a fully loaded dump truck. Some minor deflection was observed on the north end of the building pad area. Two to three feet of fill will be placed where the deflection was noticed that should bridge the soft soil conditions. The contractor has a 3"-0" import material for fill on the building pad and frequent proof-rolls should identify any unsuitable areas. A Geocon Northwest representative will return to the site upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 7/29/03 • NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineers field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. GEOCON �C`� FIELD REPORT N o R T rr w ES T I� PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Monday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 7/28/03 O GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 2 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey & Son, Inc. BY 0 PREVIOUSLY BRIEFED CONTRACTOR'S SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the contractor's request. The contractor was beginning to place the import fill material at the entrance and working east to construct the construction haul road. Approximately eight inches of imported fill material had been placed and compacted with a smooth-drum roller. The material appeared firm when crossed over by delivery trucks exhibiting no deflection. A sample was taken for a proctor and compaction will be checked at a later date. A Geocon Northwest representative will return to the site upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 7/28/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractors obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction. • •GEOCON CC` FIELD REPORT N O R TH WE S T PAGE 1 OF 1 GEOTECHNICAL CONSULTANTS DAY OF WEEK Friday 8270 SW NIMBUS AVENUE-BEAVERTON, OREGON 97008 PHONE 503 626-9889-FAX 503 626-8611 DATE 7/25/03 O GRADING 0 TRENCH BACKFILL 0 OTHER REPORT NO. 1 PROJECT NAME PROJECT NO. Tigard Library P1150-05-02 O CLIENT PHONE PROJECT MANAGER FIELD TECHNICIAN/AUTHOR City of Tigard Heather Devine Staci Connors N C CONTRACTOR PHONE PROJECT BRIEFING 0 YES DATE A Hoffman Construction/John Jersey& Son, Inc. BY 0 PREVIOUSLY BRIEFED N CONTRACTORS SUPERINTENDENT/FOREMAN PLANS AND SPECIFICATIONS 0 UNCHANGED E Dan/Dave TITLE D EQUIPMENT WORKING AND TYPE OF COMPACTOR BY Mahlum Architects APPROVAL DATE REV.DATE WEATHER Clear/Hot SOURCE OF FILL FOLLOW-UP INVENTORY DID YOU REVIEW PREVIOUS FOLLOW-UP FIELD REPORT? 0 YES 0 NO LIST REPORT NUMBERS WHERE FOLLOW-UP WAS SATISFIED BY THIS REPORT: LIST REPORT NUMBERS STILL REQUIRING FOLLOW-UP: WHAT IN PARTICULAR SHOULD BE OBSERVED,CHECKED,OR TESTED DURING NEXT VISIT? WAS A MEMO ISSUED TODAY?0 YES 0 NO MEMO NO. CONTRACTOR/FIELD TECHNICIAN ACTIVITIES—INDICATE ACTIVITIES YOU DID AND DID NOT OBSERVE. DOCUMENT CONVERSATIONS,OBSERVATIONS,OR OCCURRENCES,DEEMED SIGNIFICANT TO THE PROGRESS OF WORK,BE SPECIFIC AS TO WHO,WHAT,WHEN,AND WHERE. Arrived onsite in the AM at the contractor's request to observe a proof-roll of the subgrade for the entrance and south side of the parking lot prior to placing any needed fill. The proof-roll was performed by a fully loaded dump truck. The subgrade soil appeared firm and ready for construction. Fill material will be imported. A Geocon Northwest representative will return to the site upon request. FIELD TECHNICIAN(PRINT) DATE HOURS O.T. LIST ON-SITE VISITORS Staci Connors 7/25/03 NUMBER OF DENSITY TESTS TAKEN CLIENT REPRESENTATIVE SIGNATURE NOTICE: The professional engineer is represented on site solely to observe operations of the contractor identified, form opinions about the adequacy of those operations and report those opinions to the client. The presence and activities of the engineer's field representative do not relieve the contractor's obligation to meet contractual requirements. The contractor retains sole responsibility for site safety and the methods and sequences of construction.