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Trieu SFR - DFR 02-20-24 APPROVED 2-21-24 Piling ReportGEOTECHNICAL ENGINEERING • ENVIRONMENTAL ENGINEERING CONSTRUCTION TESTING & INSPECTION February 19, 2024 Mr. Paul Trieu (E-Mail) 421 143rd Place SW Lynnwood, WA 98087 RE: CONSTRUCTION TESTING AND INSPECTION Trieu SFR 7011 Lake Ballinger Way Edmonds, Washington Dear Mr. Trieu, KA No. 096-24073 Permit No. BLD2023-0273 In accordance with your request and authorization, our firm performed construction testing and inspection for the above -referenced project. The sampling and testing was performed by our inspectors and reports are included. If you have any questions, or if we can be of further assistance, please do not hesitate to contact our office. Respectfully submitted. KRAZAN & ASS FATES, INC. ty`inan L. Mercer Project Manager Pacific Northwest Division RLM/Ikj C.C. CITY OF EDMONDS 4303 19811 Street SW, Lynnwood, Washington 98036 • (425) 485-5519 • FAX (425) 485-6837 Will, Offices Serving the Western United States 09624073 DFR Page 1 of 4 M(qmzan 8tAssociates,lnc. Field Geotechnical Engineering a Environmental Engineering Report NO.: 09624073DFRO21624EC Construction Testing and Inspection DATE: 2/16/2024 Set Count: CONTRACTOR: R&R Foundation Specialists PROJECT #: 09624073 PERMIT #: BLD2023-0273 PROJECT: Trieu SFR INSPECTOR: Eddie Canfield LOCATION: 7011 Lake Ballinger Wav, Edmonds JURISDICTION: Cii\ of Edmonds KA P.M.: Jeff Mercer WEATHER: Sunnv TEMP: 40 A Krazan representative visited the project site today to observe the installation of helical piles. Upon our arrival on site, we met with the contractor to discuss installation details and locations. Today, we observed the installation of twenty-two (22) helical piles. The piles all had a 10" diameter single helix on the leading section of the pile. Piles had an outer diameter of 3 %" and 2 7/8" inner diameter. The piles were connected together with two (2) through bolts between each section. R&R installed piles 1-4 and 6-23 to depths of 4' to 17'. Piles 1-4, 6-11, and 14 were driven utilizing their DIGGA IOk drive head and piles 12-13 and 15-23 were driven utilizing their 6k DIGGA drive head mounted on a dingo. Piles were driven until their minimum axial compression listed on the project plans was reached (see site photos below for a chart of target loads). R&R provided us with a conversion chart correlating the head pressure read on their gauges to their torque and compressive load capacities. The following pages include site photos and a site plan showing pile designation. A table is included showing the length of the piles installed today, and the corresponding allowable axial compressive capacities for the piles. Note: Pile 5 was not installed today. The contractor and owner informed us that pile 5 was not needed for the proposed edition to the house. The engineer was called and made aware of this around 10:20am today. We were not informed as to what the engineer's response was- APPROVED 2-21-24 Offices Serving the Western United States Lynnwood (425) 485-5519 - Poulsbo (360) 598-2126 Tacoma (253) 939-2500 The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and K� & Associates. This report indicates our inspectors observation and testing results haled on site conditions and contractor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept responsibility for validity of results. The same information has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested Template date 12/8/2023 Page 2 of 4 I8. algm-� Ass ociate s,Inc. Geotechnical Engineering . Environmental Engineering Construction Testing and Inspection Field Report NO.: 09624073DFRO21624EC Table 1: Helical Pile Installation Data Pile No. Hydraulic Head Pressure (psi) Equivalent Load (kips) Pile Depth (ft) Comments 1 1500 23.5 8 10K DIGGA 2 1400 21.9 8 10K DIGGA 3 1500 23.5 6 10K DIGGA 4 1300 20.4 9 10K DIGGA 5 - - - See Note in report above. 6* 500-1000 - 7 Solid obstruction encountered at 7' below grade. Gauge bounced between 500-1000 psi as the pile spun. 10K DIGGA 7 1400 21.9 9 10K DIGGA 8 1400 21.9 9 10K DIGGA 9 1000 15.7 12 10K DIGGA 10 1600 25.1 17 10K DIGGA 11 1100 17.2 9 10K DIG . A 12 1600 22.4 4 6K DIGGA 13 1400 19.6 4 6K DIGGA 14 1100 17.2 11 6K DIGGA 15 1800 25.2 12 10K DIGGA 16 1000 14.0 9 6K DIGGA 17 1400 19.6 5 6K DIGGA 18 1800 25.2 6 6K DIGG 19 1400 19.6 5 6K DIGGA 20 1400 19.6 5 6K DIGGA 21 1400 19.6 5 6K DIGGA 22 2000 28.0 7 6K DIGGA 23 1800 25.2 6 6K DIGGA *=Pile met refusal. The pile did not advance after 5 minutes of continuous driving with a chain hoist providing additional downwards pressure. APPROVED 2-21-24 60 Offices Serving the Western United States Lynnwood (425) 485-5519 - Poulsbo (360) 598-2126 - Tacoma (253) 939-2500 The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and Kraxarr d Associates. This report indicates our inspectors observation and testing results based on site conditions and contactor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept responsibility for validity of results. The same information has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested. Template date 12/8/2023 Page 3 of 4 - 114'aZan&Associates, Inc. Field Geotechnical Engineering • Environmental Engineering Report NO.: 09624073DFRO21624EC Construction Testing and Inspection Site Plan - J (N) F3.0 18�1k IJ I I 3.tu� I I, _ go0 ICI I 17 I r-F 10k 16-V PILE LOADS 2 718'0 MARK CAPACITY � O2 21k U3 1pc 0 10k Q5 1pc © ,Ok O7 2,k ® 1ok o �� 10 24k ,2 1ok 13 19k 14 10k 15 10k 16 10k 17 tOk 13 A19 12k ® 12k 2, ,2k 22 25k 23 12k Offices Serving the Western United States Lynnwood (425) 485-5519 • Poulsbo (360) 598-2126 • Tacoma (253) 939-2500 The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and ICra sn d Associares. This report indicates our inspectors observation and testing results based on site conditions and contractor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept responsibility for validity of results. The same in£ornaton has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested. Template date 1218/2023 yr� Page 4 of 4 �� ■uz &Associates,Inc. Geotechnical Engineering • Environmental Engineering Construction Testing and Inspection Field Report NO.: 09624073DFRO21624EC Site Photos: Reviewed By: ASTM Test #: Asset Number(s): To the best of my knowledge, the above WAS performed for information purposes only. Su erintendent/Re resentative: Technician: Offices Serving the Western United States Lynnwood (425) 485-5519 • Poulsbo (360) 598-2126 • Tacoma (253) 939-2500 The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and Kraran & Associates. This report indicates our inspector; observation and testing results based on site conditions and contractor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept responsibility for validity ofresults. The same information has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested. Template date 12/8/2023