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HomeMy WebLinkAbout7334.06 Letter 2023 0803 - EOT & EC15365 N.E. 90th Street, Suite 100 • Redmond, WA 98052 • (425) 449-4704 • FAX (425) 449-4711 Earth Solutions NW LLC Geotechnical Engineering, Construction Observation/Testing and Environmental Services August 3, 2023 ES-7334.06 MainVue WA, LLC 121 – 3rd Avenue Kirkland, Washington 98033 Attention: Ryli Sprague Subject: Final Report Earthwork Observation, Compaction Testing, Geotechnical Consulting, Erosion Control Observation, and Stormwater Testing Services Brennon Landing 1400 Aberdeen Avenue Northeast Renton, Washington Reference: Earth Solutions NW, LLC 1.Geotechnical Engineering Study, ES-7334, dated March 16, 20212.Native Cut Rockery Calculations, ES-7334.05, dated February 11, 20223.Keystone Wall Design & Notes, ES-7334.05, dated March 29, 20224.Rockery Details & Notes, ES-7334.05, dated May 17, 2022 5.Retaining Wall Footing Drainage Letter, ES-7334.05, dated June 13, 20226.Geotechnical Evaluation (Native Trench Backfill Material), ES-7334.06, dated December 8, 20227.Final Summary (Rockery and MSE Keystone Walls), ES-7334.06, dated March 24, 2023 Barghausen Consulting Engineers, Inc. Civil Plan Set, revised March 2022 Dear Ryli: In accordance with your request, Earth Solutions NW, LLC (ESNW) provided earthwork observation, compaction testing, geotechnical consulting services, erosion control observation, and stormwater testing at the subject site. ESNW previously prepared the referenced geotechnical documents for this project. As part of the overall preparation of this letter, the referenced civil plan set was reviewed. The attached field reports documenting earthwork observations and testing completed by ESNW representatives during construction were also reviewed. MainVue WA, LLC ES-7334.06 August 3, 2023 Page 2 Earth Solutions NW, LLC Services provided by ESNW included on-site observations, compaction testing, geotechnical consulting, erosion control observation, and stormwater discharge testing from September 9, 2022 to June 22, 2023. During this time, ESNW representatives visited the site to observe earthwork activities; rockery and Keystone wall construction; utility trench backfill; construction of the on-site stormwater facilities; preparation of curb, gutter, sidewalk, and pavement subgrade areas; placement and compaction of hot-mix asphalt (HMA) for final road surfacing (on-site roadways and the off-site frontage area); and structural fill placed throughout structural areas of the site. ESNW representatives also observed and documented site temporary erosion control measures. ESNW representatives conducted 75 field density tests in accordance with ASTM Test Designation D6938 (Nuclear Gauge Method). Five representative soil samples were returned to our laboratory for analysis of the maximum dry density (MDD) and optimum moisture content in accordance with ASTM D1557 (Modified Proctor). Field density testing indicated adequate compaction of at least 95 percent of the MDD was achieved at tested locations of structural fill placed in building lots; road, curb, and sidewalk areas; utility trenches; rockery and retaining wall backfill zones; and throughout structural areas of the site. The observed native cuts and tested building pad fill areas were confirmed to be dense and considered suitable for an allowable soil bearing capacity of 2,500 psf (as recommended in the referenced March 2021 geotechnical study). In this respect, the prepared building pad areas are considered suitable for foundation support of the new residential building structures. ESNW observed the overall stability of temporary cuts during the construction of project-related rockeries and retaining walls. Temporary cuts performed as intended during the duration of construction activities. A native cut rockery was constructed along the north and northeast site boundaries to support new lot grades and the transitions between neighboring off-site properties. The overall height of the constructed rockery ranged between approximately four to five feet (or less). ESNW representatives observed competent and stable native soil exposed at the temporary rockery cuts and keyway areas. ESNW representatives confirmed the keyway areas and soil cut along the rockery alignment to be suitable for support of the final rockery configurations. Rockery drainage, consisting of at least 18 inches of quarry rock backfill and a four-inch-diameter, perforated drainpipe, was placed behind each rockery segment. MainVue WA, LLC ES-7334.06 August 3, 2023 Page 3 Earth Solutions NW, LLC A tiered MSE Keystone Compac block retaining wall was constructed at the south and southeast portions of the site. The Keystone MSE wall was constructed with a total exposed height on the order of 10 feet (or less) to support the new lot grades established at the southeast portion of the site. ESNW representatives confirmed the keyway areas and soil cut along the retaining wall alignments to be suitable for support of the final wall configuration. The foundation subgrade soil for the tiered wall system was observed to be dense prior to placement and compaction of the crushed rock leveling course. A four-inch-diameter, perforated drainpipe was placed behind the wall blocks at the foundation subgrade elevation and the upper (tiered) wall segment. ESNW representatives observed the placement of geogrid (Miragrid 5XT) in accordance with the strengths, lengths, orientation, and intervals specified by our geotechnical recommendations and on the referenced wall design. A free-draining rock filter zone consisting of suitable clean crushed rock was placed directly behind the Keystone Compac blocks in accordance with the approved plans. The tiered MSE Keystone wall system was observed to have suitable batter and toe bury. Site observations and field density test results indicate acceptable levels of compaction were achieved during the placement of MSE backfill. ESNW observed curb, pavement, and sidewalk subgrade areas to be dense, stable, and suitable for final concrete or asphalt surfacing. ESNW representatives observed the placement of suitable imported soil used for the treatment liner below the on-site permeable HMA roadway (Road A) areas. Infiltration and laboratory testing confirmed stable soil characteristics of the road treatment liner subgrade. ESNW representatives observed placement of at least 12 inches of suitable angular crushed ballast rock reservoir material placed as part of the preparation of permeable pavement base course. The observed soil conditions and overall construction methods were observed to be consistent with the approved plans and overall design for permeable pavement areas. ESNW representatives observed the final subgrade conditions at roadway areas to be firm and unyielding during a proofroll with a loaded dump truck. Density test results indicated a relative compaction of at least 92 percent of the provided Rice value was achieved at tested locations of HMA areas. ESNW representatives observed suitable sandy native soil exposed below the design subgrade of individual-lot infiltration drywell areas. Localized over-excavations were completed, as recommended by ESNW representatives, to advance the bottom of the drywells at least 12 inches into suitably well-drained native soil deposits (advance outwash) at depth. Based on visual observations, laboratory analyses, and prior infiltration testing completed on site, suitable soil conditions to support the infiltration design were observed by ESNW representatives during construction of the drywells at each lot. The stormwater drywell (infiltration) facilities were lined with filter fabric at the sides, backfilled with washed rock, and filter fabric was placed atop prior to placing cap-fill to establish final lot grades. The observed drywells were installed in general accordance with the approved plans and the geotechnical recommendations previously provided by ESNW. ESNW representatives observed the erosion control measures to perform as intended during construction. Erosion control measures were modified as needed during construction and were maintained in general accordance with the recommendations of ESNW representatives and the construction stormwater permit for the project. MainVue WA, LLC ES-7334.06 August 3, 2023 Page 4 Earth Solutions NW, LLC Based on the observations and testing completed by ESNW representatives, the earthwork construction was accomplished in general accordance with the project plans and the geotechnical recommendations provided by ESNW. We trust this letter meets your current needs. If you have any questions, or if additional information is required, please call. Sincerely, EARTH SOLUTIONS NW, LLC B. Tyler Scalise Keven D. Hoffmann, P.E. Senior Project Geologist Associate Principal Engineer Attachment: Field Reports (EOT Field Reports Only) cc: MainVue WA, LLC Attention: Allison Rothstein Sean Dickey Barghausen Consulting Engineers, Inc. Attention: Tom Barghausen, P.E. 08/03/2023 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 09092022 Date Fri 9/9/2022 Weather 80soF, Hazy Arrival/Departure Time(s) 5:30 PM; 6:00 PM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Andrew Kimn | (206) 430-9183 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. At the client’s request, ESNW rep was on site to observe wall keyway. Wall Keyway While on site, ESNW rep observed that contractor had used a medium sized excavator to cut wall keyways throughout the site. Rep used a ½-inch-diameter steel rod to probe the keyway in the northern half of the site and observed very dense, firm, and unyielding soil conditions, considered suitable for support of the proposed wall. ESNW rep will return to observe earthwork activities when requested by client. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 09152022 Date Thu 9/15/2022 Weather Cloudy 63°F Arrival/Departure Time(s) 10:45 AM – 12:15 PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by client, ESNW rep was on site to observe and test compaction. Compaction Testing of Lots 1-8: Upon arrival, ESNW rep observed the contractor had cleared the vegetation and had leveled the site according to plans. Contractor relayed that the drum roller was waiting on repairs, so compaction of the surface layer was not ready to be tested. ESNW rep tested the lifts below subgrade and found that the moisture level was below optimal. ESNW rep recommends moisture conditioning (adding water) and re-compacting. ESNW rep will return as requested by client for further observation and testing. See image below: Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 09162022 Date Fri 9/16/2022 Weather Partly Cloudy 54° Arrival/Departure Time(s) 8:30 AM - 9:45 AM Travel Time (hr)1 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by client, ESNW rep was on site to observe and/or test compaction of lot fill. Compaction Tests of Lots 1-8: Upon arrival, ESNW rep observed the contractor had leveled the site according to plans. Contractor had re-compacted the top lift. ESNW rep tested the lifts at and below subgrade and found that the moisture level was slightly above the optimum water content. ESNW rep will return after the weekend for further testing and observation, as requested by the contractor. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 09202022 Date Tue 9/20/2022 Weather Clear skies 73°F Arrival/Departure Time(s) 12:15 PM - 2:00 PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by client, ESNW rep was on site to observe and test compaction of lot fill. Compaction Tests of Lots 1-8: Upon arrival, ESNW rep observed the contractor had leveled the site according to plans. Contractor had re-compacted the top lift with a vibratory drum roller after adding moisture per ESNW recommendation. ESNW rep tested the lifts at and below subgrade and observed compaction of 95 percent or more (modified MDD) at the locations below. ESNW rep will return as requested by client for further observation and testing. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 1 Lot 3 Fill SG 2 114.2 12.1 110.2 96 2 Lot 2 Fill SG 2 114.2 11.8 110.6 97 3 Lot 6 Fill SG 1 117.9 11.9 111.8 95 Report ID 7334.06 E 09202022 Page 2 of 2 Earth Solutions NW, LLC 2 1 3 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 09232022 Date Fri 9/23/2022 Weather Cloudy 59°F Arrival/Departure Time(s) 9:00 AM – 10:00 AM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on-site for a site meeting regarding the construction of the rockeries. While on-site, the following was discussed: Site Meeting: Upon arrival on-site, ESNW rep met with the following parties to discuss site expectations and scheduling: - Sean D. (MainVue WA, LLC) - Ryli S. (MainVue WA, LLC) - Joe (Van Hoof Construction, LLC) The following topics were discussed: - Wall construction (rockeries and modular block walls) shall be consistent with approved ESNW design. Rockery and modular block wall heights and locations shall be consistent with the approved civil plans and surveying/staking. - Rockeries will be constructed within the northern site half. - Modular block walls will be constructed within the southern site half. - ESNW rep will probe the base of rockery sections today, September 23, 2022. Rockery: While on site, contractor was observed using a medium-sized excavator to cut and grade the rockery keyways within the northern site half. Rep used a ½-inch-diameter steel rod to probe various keyway areas and observed dense, firm, and unyielding soil conditions, considered suitable for support of the proposed rockery. Rep observed contractor place base boulders for the rockery. See image below. ESNW rep will return when requested. Report ID 7334.06 E 09232022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 09262022 Date Mon 9/26/2022 Weather Clear skies 72°F Arrival/Departure Time(s) 4:15 PM – 4:45 PM Travel Time (hr) 1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by client, ESNW rep was on site to observe rockery construction and probe keyway for modular block wall. Modular Block Wall: ESNW rep observed contractor used a medium sized excavator to cut and grade the rockery keyways throughout the site. Contractor relayed that further compaction was achieved on keyway using a vibratory drum roller. Rep used a ½-inch-diameter steel rod to probe the keyway and observed the subgrade to be very dense, firm, unyielding and suitable for support of the proposed block wall. Rockery: Rep observed contractor place a 6-inch lift of 2- to 4-inch quarry spalls for the rockery base course, and then place boulders for the rockery. Rep observed a 4-inch-diameter perforated drain pipe behind the first course of boulders. Behind the rockery face and over the drain pipe, rep observed contractor use a large excavator to backfill with 2- to 4-inch quarry spalls. ESNW rep will return when requested to further observe earthwork activities. See image below: Report ID 7334.06 E 09262022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 09282022 Date Wed 9/28/2022 Weather Cloudy 61°F Arrival/Departure Time(s) 11:15 AM – 12:30 PM Travel Time (hr) 0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. Modular Block Wall: ESNW rep observed contractor used a medium sized excavator to cut and grade the rockery keyways throughout the site. Contractor had begun stacking blocks along the south perimeter of the site. Rep observed that Miragrid 5XT had been installed at a height of 2 blocks, but the tensile strength was parallel to the face of the wall rather than perpendicular. See photo 1. ESNW rep recommends reinstalling the geogrid perpendicular to face of the wall per the approved plans. Rockery: Rep observed contractor continue construction of rockery and place a 6-inch lift of 2- to 4-inch quarry spalls for the rockery base course, and then place boulders for the rockery. Rep observed a 4-inch perforated drain pipe behind the first course of boulders. Behind the rockery face and over the drain pipe, rep observed contractor use a large excavator to backfill with 2”-4” quarry spalls. Rockery now extends from northeast corner of site to the northwest corner. See photo 2. Contractor relayed that construction would continue tomorrow with the delivery of more boulders. ESNW rep will return when requested to further observe earthwork activities. See images below: Report ID 7334.06 E 09282022 Page 2 of 2 Earth Solutions NW, LLC Photo 1 Photo 2 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 09292022 Date Thu 9/29/2022 Weather Cloudy 61°F Arrival/Departure Time(s) 9:30 AM – 10:15 AM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe construction of modular block wall. While on site, the following was observed: Modular Block Wall: Upon arrival, ESNW rep observed block wall construction had not continued since last visit. Miragrid 5XT was still installed parallel to face of wall. ESNW rep recommends reinstalling the Miragrid 5XT perpendicular to face of the wall in accordance with the approved plans. ESNW rep will return when requested to further observe earthwork activities. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 09302022 Date Fri 9/30/2022 Weather Clear skies 66°F Arrival/Departure Time(s) 1:30 PM – 2:15 PM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe construction of the rockery. While on site, the following was observed: Modular Block Wall: ESNW rep observed contractor used a medium-sized excavator to cut and grade the rockery keyways toward the southeast corner of the site. ESNW rep probed the keyway with a ½-inch-diameter steel rod and observed dense, firm, and unyielding soil conditions, considered suitable for the support of the proposed modular block wall. Contractor continued stacking blocks along the south perimeter of the site. Rep observed that Miragrid 5XT had been re-installed at a height of 2 blocks, with the tensile strength direction perpendicular to the face of the wall. Rockery: Rep observed contractor continue construction of rockery and place a 6-inch lift of 2- to 4-inch-diameter quarry spalls for the rockery base course, and then place boulders for the rockery. Rep observed a 4- inch perforated drainpipe behind the first course of boulders. Behind the rockery face and over the drainpipe, rep observed contractor use a large excavator to backfill with quarry spalls. Rockery now extends from northeast corner of site to the northwest corner. ESNW rep will return when requested to further observe earthwork activities. See images below: Report ID 7334.06 E 09302022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 10032022 Date Mon 10/3/2022 Weather Partly Cloudy 59°F Arrival/Departure Time(s) 9:30 AM – 10:00 AM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe construction of the rockery. While on site, the following was observed: Modular Block Wall: ESNW rep observed contractor used a medium-sized excavator to cut and grade the rockery keyways along the east corner of the site. ESNW rep probed the keyway with a ½-inch-diameter steel rod and observed dense, firm, and unyielding soil conditions, considered suitable for the support of the proposed modular block wall. Rep observed contractor install 5/8-inch-minus crushed rock (leveling course) at the base of block wall. Contractor continued stacking blocks along the east perimeter of the site, with Miragrid 5XT installed at a height of 2 blocks and the tensile strength direction perpendicular to the face of the wall. Rockery: Rep observed contractor continue construction of rockery and place a 6-inch lift of 2- to 4-inch-diameter quarry spalls for the rockery base course, and then place boulders for the rockery. Rep observed a 4- inch perforated drainpipe behind the first course of boulders. Behind the rockery face and over the drainpipe, rep observed contractor use a large excavator to backfill with quarry spalls. Rockery construction is now complete. ESNW rep will return when requested to further observe earthwork activities. See images below: Report ID 7334.06 E 10032022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 10062022 Date Thu 10/6/2022 Weather Partly Cloudy 70°F Arrival/Departure Time(s) 10:30AM–11:00AM / 1:45PM–2:15PM Travel Time (hr)1.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe construction of the modular block wall. While on site, the following was observed: Modular Block Wall: ESNW rep observed contractor backfill 2–4-inch clean crushed rock above the drain pipe. Filter fabric was then installed above the clean rock and drain pipe. Rep observed contractor backfill 12 inches of native silty sand soil along the south portion of the modular block wall and use a medium-sized drumroller to compact the lift. Upon return to site, ESNW tested the compaction and found that moisture levels were below optimal. ESNW rep recommends adding moisture and re-compacting with drumroller. Contractor relayed that modular wall construction would continue October 7, 2022. ESNW rep will return to retest moisture content and compaction. See images below: Report ID 7334.06 E 10062022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 10072022 Date Fri 10/7/2022 Weather Clear skies 54°F Arrival/Departure Time(s) 8:45AM –9:30AM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe construction of the modular block wall. While on site, the following was observed: Modular Block Wall: ESNW rep observed contractor continue construction of modular block wall from the southeast corner of the site along the eastern perimeter. Contractor backfilled 12 inches of native silty sand soil along the east portion of the modular block wall above the installed drainpipe and crushed rock. Rep observed contractor use a medium sized drumroller to compact the lift. ESNW tested the compaction and found that moisture levels were below optimal. ESNW rep recommends adding moisture and re- compacting with drumroller. Contractor relayed that modular block wall construction would continue October 11, 2022. ESNW rep will return to retest moisture content and compaction. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 10122022 Date Wed 10/12/2022 Weather Hazy 71°F Arrival/Departure Time(s) 3:30 PM – 3:45 PM Travel Time (hr)1.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to retest backfill of modular block wall. Upon arrival, ESNW rep found that the contractor was not on site, and work was not occurring. ESNW rep will return to retest when construction on modular block wall resumes, as requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 11092022 Date Wed 11/9/2022 Weather Clear Skies 43°F Arrival/Departure Time(s) 11:00 AM – 11:15AM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to retest backfill of modular block wall. Upon arrival, ESNW rep was told by contractor that the vibratory drum roller was not on site. Contractor requested a return visit on Friday, November 11, 2022. ESNW rep will return as requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 11112022 Date Fri 11/11/2022 Weather Mostly Cloudy 46°F Arrival/Departure Time(s) 11:00 AM – 11:30AM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to retest backfill of modular block wall. While on site, the following was observed: Modular Block Wall Installation: Upon arrival, ESNW rep observed contractor had placed clean rock directly behind the face of the block wall and installed Miragrid 5XT at lengths of 6 feet. Native soil was placed as wall backfill in an approximately 12-inch loose lift. This lift had not yet been compacted at the time of the site visit. ESNW rep will return to test compaction of top lift and retest compaction on lower lifts. See image below. ESNW rep will return as requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 11162022 Date Wed 11/16/2022 Weather Clear Skies 52°F Arrival/Departure Time(s) 1:45 PM – 2:30 PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to retest backfill of modular block wall. While on site, the following was observed: Modular Block Wall Installation: Upon arrival, ESNW rep observed contractor had compacted the top lift with a vibratory drum roller and a jumping jack. Contractor excavated down 2 feet in 2 sections along the south wall to retest (test pit) the lower lifts. Density tests indicate adequate compaction of at least 95 percent of the modified proctor at tested locations. See below for tested locations. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 4 Wall backfill -2'2 114.2 14.6 111.3 97 5 Wall backfill -2'2 114.2 11.5 108.6 95 6 Wall backfill SG 2 114.2 12.8 108.1 95 7 Wall backfill SG 2 114.2 13.2 109.6 96 ESNW rep will return as requested. Report ID 7334.06 E 11162022 Page 2 of 2 Earth Solutions NW, LLC Test 4 Test 6 Test 5 Test 7 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 11212022 Date Mon 11/21/2022 Weather Mostly Cloudy 40°F Arrival/Departure Time(s) Proctor Transport (9:00 AM – 10:00AM) Travel Time (hr) 0.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep transported proctor sample from site to lab. ESNW rep will return upon request. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 11222022 Date Tue 11/22/2022 Weather Showers 48°F Arrival/Departure Time(s) 1:30PM – 1:45PM / 3:15PM – 3:45PM Travel Time (hr)2.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill on Aberdeen Ave NE. While on site, the following was observed: Modular Block Wall Observations: Upon arrival, ESNW rep observed contractor had installed the drainpipe for the upper south wall after the first row of blocks. Drainpipe was embedded in clean crushed rock and covered with filter fabric. Rep observed contractor install Miragrid 5XT in 6-foot sections after the second row of blocks. See image below. Sewer Installation and Backfill Observations: ESNW rep. observed the contractor excavate a trench for the sewer installation. The trench subgrade was observed to be firm and unyielding. ESNW rep. observed the contractor backfill the sewer with 5/8-inch crushed rock in even lifts. Each loose lift was compacted using a jumping jack. Compaction test taken indicates adequate compaction of at least 95% was achieved at the specific test location. See map below for approximate test location. Contractor relayed that trench backfill will continue tomorrow, November 23. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 8 Sewer Trench Backfill -1'3 129.1 7.8 123.4 96 Report ID 7334.06 E 11222022 Page 2 of 2 Earth Solutions NW, LLC Test 8 Sewer Trench Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 11232022 Date Wed 11/23/2022 Weather Mostly Cloudy 45°F Arrival/Departure Time(s) 8:30 AM – 11:30 AM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill on Aberdeen Ave NE and wall backfill. While on site, the following was observed: Modular Block Wall Observations: Upon arrival, ESNW rep observed contractor had finished backfilling the east modular block wall. Each loose lift was approximately 18 inches and composed of native silty sand. Compaction was achieved with a vibratory drum roller and a jumping jack. Compaction test taken indicates adequate compaction of at least 95% was achieved at the test locations. See map below for approximate test locations. Sewer Installation and Backfill Observations: ESNW rep observed the contractor install a sewer manhole and install 8-inch-diameter green sewer pipe. Rep probed the base of the trench and found base to be firm and unyielding. Once installed, contractors used 5/8-inch minus crushed rock as base over the pipe and then as backfill. The trench subgrade was observed to be firm and unyielding. Each lift was compacted using a jumping jack. Compaction test taken indicates adequate compaction of at least 95% was achieved at the test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 9 Sewer Trench Backfill -4'3 129.1 8.5 128.8 100 10 Sewer Trench Backfill -2'3 129.1 8.6 122.9 95 11 Sewer Trench Backfill SG 3 129.1 8.9 125.4 97 12 Wall backfill SG 2 114.2 15.8 108.0 95 13 Wall backfill SG 2 114.2 12.0 109.3 96 14 Wall backfill -3'2 114.2 12.5 109.3 96 15 Wall backfill -2'2 114.2 12.2 110.4 97 Report ID 7334.06 E 11232022 Page 2 of 2 Earth Solutions NW, LLC Test 9 Sewer Trench 10 11 15 14 13 12 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 11282022 Date Mon 11/28/2022 Weather Mostly Cloudy 37°F Arrival/Departure Time(s) 9:45 AM – 10:15 AM / 3:30 PM – 4:00 PM Travel Time (hr)1.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill on Aberdeen Ave NE and wall backfill. While on site, the following was observed: Modular Block Wall Observations: Upon arrival, ESNW rep observed a portion of the wall in the southeast corner had been washed out. A small part of the geogrid fabric was exposed. ESNW recommends replacing the free-draining zone (clean rock) behind the retaining wall in this section to ensure the free-draining zone is not impacted by fines/sedimentation as a result of the washout. See image below. Sewer Installation and Backfill Observations: ESNW rep observed the contractor continue to excavate a sewer trench along Road A. Rep probed the base of the trench and found base to be firm and unyielding. Contractor then installed an 8-inch- diameter green sewer pipe. Once installed, pea gravel was used to bed the pipe, and then native material was used as backfill. Each lift was compacted using a jumping jack. Compaction tests taken indicates adequate compaction of at least 95% was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 16 Sewer Trench Backfill SG 2 114.2 11.1 108.9 95 17 Sewer Trench Backfill -3'2 114.2 10.0 110.1 96 Report ID 7334.06 E 11282022 Page 2 of 2 Earth Solutions NW, LLC Test 16 Sewer Trench Test 17 Washed out section of wall Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 11292022 Date Tue 11/29/2022 Weather Snow 32°F Arrival/Departure Time(s) 11:15AM – 12:00PM Travel Time (hr)0.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill along Road A. While on site, the following was observed: Sewer Installation and Backfill Observations: ESNW rep observed the contractor continue to excavate a sewer trench along Road A and install 8- inch-diameter green sewer pipe. Contractor then installed a sewer manhole at the end of Road A. Once installed, pea gravel was used to bed the pipe, and then native material was used as backfill. Each lift was compacted using a jumping jack. Compaction test taken indicates adequate compaction of at least 95% was achieved at the specific test location. See map below for approximate test location. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 18 Sewer Trench Backfill -2'2 114.2 13.6 108.3 95 Report ID 7334.06 E 11292022 Page 2 of 2 Earth Solutions NW, LLC Sewer Trench Test 18 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 11302022 Date Wed 11/30/2022 Weather Mostly Cloudy 39°F Arrival/Departure Time(s) 11:00 AM – 11:15AM / 2:30PM – 4:00PM Travel Time (hr)1.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill. Upon arrival, ESNW rep was told by contractor that the jumping jack was not working and to return later. Upon return, contractor relayed that they were still waiting the arrival of the hoe-pack. ESNW rep was requested to return tomorrow (Thursday). ESNW rep will return as requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 12012022 Date Thu 12/1/2022 Weather Mostly Cloudy 37°F Arrival/Departure Time(s) 1:45PM - 2:00PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to test backfill of sewer trench. Upon arrival, ESNW rep observed that the contractor was not on site and work was not taking place. ESNW rep will return when requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 12022022 Date Fri 12/2/2022 Weather Mostly Cloudy 35°F Arrival/Departure Time(s) 8:45AM - 9:30AM Travel Time (hr)1.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site observe construction of modular block wall. While on site, the following was observed: Modular Block Wall Observations: Upon arrival, ESNW rep observed the section of the modular block wall in the southeast corner that had been washed out. The sedimented/washed out area had increased since prior site visits. Sediment was observed at the foot of the wall. ESNW recommends replacing the free-draining zone (clean rock) behind the retaining wall in this section to ensure the free-draining zone is not impacted by fines/sedimentation as a result of the washout. See image below. ESNW rep will return when requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12052022 Date Mon 12/5/2022 Weather Mostly cloudy, 39 °F Arrival/Departure Time(s) 12:45–1:30 PM Travel Time (hr) N/A Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | 425-984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill along Road A. While on site, the following was observed: Sewer Installation and Backfill Observations: ESNW rep observed the contractor continue to excavate a sewer trench along Road A and install 8-inch- diameter green sewer pipe. Contractor then installed a sewer manhole at the end of Road A. Once installed, pea gravel was used to bed the pipe, and then native material was used as backfill. Each lift was compacted using a vibratory hoe-pack. The compaction test taken indicates adequate compaction of at least 95% (modified MDD) was achieved at the specific test location. See map below for approximate test location. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 19 Sewer Trench Backfill SG 2 114.2 13.2 108.1 95 Report ID 7334.06 E 12052022 Page 2 of 2 Earth Solutions NW, LLC Test 19 Sewer Trench Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12072022 Date Wed 12/7/2022 Weather Partly Cloudy 46°F Arrival/Departure Time(s) 12:45 PM – 1:45 PM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test sewer trench backfill along Road A. While on site, the following was observed: Sewer Installation and Backfill Observations: ESNW rep observed the contractor backfill the sewer trench along Road A and install 8-inch-diameter green sewer pipe. Contractor then installed a sewer manhole at the end of Road A. Once installed, pea gravel was used to bed the pipe, and then native material was used as backfill. Each lift was compacted using a vibratory hoe-pack. Compaction tests taken indicates adequate compaction of at least 95% (modified MDD) was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 20 Sewer Trench Backfill SG 4 113 10.8 107.1 95 21 Sewer Trench Backfill SG 4 113 12.1 106.9 95 22 Sewer Trench Backfill SG 4 113 11.3 106.8 95 23 Sewer Trench Backfill SG 4 113 13.9 109.2 97 24 Sewer Trench Backfill SG 5 112.8 12.2 107.5 95 25 Sewer Trench Backfill SG 5 112.8 11.6 108.2 96 26 Sewer Trench Backfill SG 5 112.8 12.4 109.6 97 Report ID 7334.06 E 12072022 Page 2 of 2 Earth Solutions NW, LLC Test 20 Test 21 Test 22 Test 23 Test 24 Test 25 Test 26 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12082022 Date Thu 12/8/2022 Weather Partly Cloudy 39°F Arrival/Departure Time(s) 1:30 PM – 4:00 PM Travel Time (hr)1.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test storm drain trench backfill along Aberdeen Ave NE. While on site, the following was observed: Stormdrain Installation and Backfill Observations: ESNW rep observed the contractor excavate an 8-foot-deep trench along Aberdeen Ave NE and install stormdrain pipe. Contractor then installed a storm drain manhole at the southwest end of the site. Once installed, 5/8-inch crushed rock was used to bed the pipe and then used as backfill. Each approximately 18-inch loose lift was compacted using a vibratory hoe-pack. Compaction tests taken indicates adequate compaction of at least 95% (modified MDD) was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 27 Storm Drain Backfill -4'3 129.1 4.9 122.6 95 28 Storm Drain Backfill -2'3 129.1 4.1 124.1 95 Report ID 7334.06 E 12082022 Page 2 of 2 Earth Solutions NW, LLC Test 27, 28 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12092022 Date Fri 12/9/2022 Weather Partly Cloudy 43°F Arrival/Departure Time(s) 10:15 AM – 11:00 AM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep Maricel Fee and Project Manager Keven Hoffmann were on site to observe storm drain trench backfill along Aberdeen Ave NE. While on site, the following was observed: Stormdrain Installation and Backfill Observations: ESNW rep observed the contractor continue to excavate an 8-foot-deep trench along Aberdeen Ave NE and install stormdrain pipe. Once installed, 5/8-inch crushed rock was used to bed the pipe and then used as backfill. Each approximately 18-inch loose lift was compacted using a vibratory hoe-pack. Compaction tests taken indicates adequate compaction of at least 95% (modified MDD) was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 29 Storm Drain Backfill SG 3 129.1 9.6 123.7 96 30 Storm Drain Backfill -3'3 129.1 5.2 128.2 99 Report ID 7334.06 E 12092022 Page 2 of 2 Earth Solutions NW, LLC Test 29 Test 30 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12132022 Date Tue 12/13/2022 Weather Cloudy 41°F Arrival/Departure Time(s) 1:15 PM – 3:00 PM Travel Time (hr)1.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to retest sewer trench backfill along Road A. While on site, the following was observed: Sewer Trench Observations: ESNW rep observed the contractor excavate several test pits approximately 3 feet in depth above the installed sewer pipe and side sewers. ESNW observed moisture conditions had improved since last tests on sewer backfill. Compaction test taken indicates adequate compaction of at least 95% was achieved at the specific test locations. See map below for approximate test location. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 31 Sewer Trench Backfill -3'4 113.0 10.6 109.7 97 32 Sewer Trench Backfill -3'4 113.0 12.2 107.6 95 33 Sewer Trench Backfill -3'4 113.0 12.6 109.8 97 34 Sewer Trench Backfill -3'5 112.8 11.1 107.1 95 35 Sewer Trench Backfill -3'5 112.8 10.1 106.6 95 36 Sewer Trench Backfill -3'5 112.8 10.5 107.0 95 37 Sewer Trench Backfill -3'5 112.8 12.9 108.7 96 Report ID 7334.06 E 12132022 Page 2 of 2 Earth Solutions NW, LLC 31 37 35 34 33 32 36 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 12162022 Date Fri 12/16/2022 Weather Cloudy 43°F Arrival/Departure Time(s) 3:00 PM – 3:30 PM Travel Time (hr) 1.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test storm drain backfill and retest sewer trench backfill along Road A. While on site, the following was observed: Storm Drain Installation Observations: ESNW rep observed the contractor continue to excavate a trench along the north side of Road A at a depth of 4 feet and install storm drainpipe. Once installed, 5/8 crushed rock was used to bed the pipe. Contractor relayed that they would not be ready to backfill today and that backfilling would resume the week of December 19, 2022. ESNW rep will return as requested. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12212022 Date Wed 12/21/2022 Weather Cloudy 27°F Arrival/Departure Time(s) 9:45 AM – 10:30 AM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test storm drain backfill. While on site, the following was observed: Storm Drain Installation Observations: ESNW rep observed the contractor finish backfilling the 4-foot-deep storm drain trench along the north side of Road A. After bedding the storm drainpipe, contractor backfilled the trench with two 12-inch loose lifts of native sandy material and compacted with a vibratory hoe-pack. Compaction tests taken indicate adequate compaction of at least 95% was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 42 N Storm Drain Backfill SG 4 113 14.7 107.3 95 43 N Storm Drain Backfill SG 4 113 16.1 107.9 95 44 N Storm Drain Backfill SG 5 112.8 15.2 108.2 96 45 N Storm Drain Backfill SG 5 112.8 14.9 107.2 95 46 N Storm Drain Backfill SG 5 112.8 15.9 109.6 97 Report ID 7334.06 E 12212022 Page 2 of 2 Earth Solutions NW, LLC Test 42 Test 43 Test 44 Test 45 Test 46 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12222022 Date Thu 12/22/2022 Weather Partly Cloudy 21°F Arrival/Departure Time(s) 10:00AM – 10:30AM / 2:30PM – 2:45PM Travel Time (hr)1.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe repair of the modular block wall and installation of water main. While on site, the following was observed: Modular Block Wall Repair Observations: ESNW rep observed the contractor excavate the washed-out area of the block wall in the southeast corner of the site. ESNW rep observed the contractor take special care while excavating not to damage the geogrid. Clean drain rock was installed behind the block wall, and then the wall backfilled with native sand, bringing the area back to grade. ESNW rep then observed contractor start building the next tier of block wall. Crushed rock was placed as base and the first 2 rows of block were installed. Water Main Observations: While on site ESNW rep observed the contractor excavate a 4-foot-deep water main trench along Road A. Rep observed contractors install the pipe. Rep was informed that the contractor would not be backfilling trench today. Contractor relayed that waterline construction would continue next Thursday (12/29/2022). ESNW rep will return as requested. Report ID 7334.06 E 12222022 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 12302022 Date Fri 12/30/2022 Weather Showers 47°F Arrival/Departure Time(s) 9:15AM – 9:30AM / 2:15PM – 3:00PM Travel Time (hr)2.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe repair the modular block wall and test the storm line backfill. While on site, the following was observed: Modular Block Wall Repair Observations: ESNW rep observed the contractor had continued constructing the second tier of block wall along the south end of the site. Contractors lay drainpipe in clean rock and covered the pipe with filter fabric. Geogrid was placed after the second block at the correct length and in the proper orientation. Backfill was placed under the geogrid to raise grades (per plan), but the backfill had yet to be compacted at the time of the site visit. ESNW rep will return to observe and test backfill compaction when construction of wall continues, as requested. See below for image. Storm Drain Connection Observations: While on site, ESNW rep observed the contractor excavate a 4-foot-deep storm drain trench across Aberdeen Ave NE. Rep observed contractors lay the pipe in 5/8-inch crushed rock and backfill with two 12-inch loose lifts. Compaction was achieved using a vibratory hoe-pack. Tests were taken at subgrade due to the shallowness of the pipe. ESNW rep observed contractor had achieved minimum compaction standards of 95% of the modified proctor value in tested locations. See below for approximate test locations. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 47 Storm Connection SG 3 129.1 6.9 125.2 97 48 Storm Connection SG 3 129.1 7.7 125.7 97 ESNW rep will return as requested. Report ID 7334.06 E 12302022 Page 2 of 2 Earth Solutions NW, LLC 47 48 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01032023 Date Tue 1/3/2023 Weather Cloudy 27°F Arrival/Departure Time(s) 12:00 PM – 12:30 PM Travel Time (hr)N/A Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test water main backfill. While on site, the following was observed: Water Main Backfill Observations: ESNW rep observed the contractor finish backfilling the 4-foot-deep water main trench along the north side of Road A. After bedding the pipe, contractor backfilled the trench with two 12-inch loose lifts of native sandy material and compacted with a vibratory hoe-pack. Compaction test taken indicates adequate compaction of at least 95% (modified MDD) was achieved at the specific test locations. See map below for approximate test locations. ESNW rep will return as requested. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 49 Water Main Backfill SG 5 112.8 12.6 110.2 98 50 Water Main Backfill SG 5 112.8 12.3 107.4 95 51 Water Main Backfill SG 5 112.8 14.0 106.8 95 52 Water Main Backfill SG 5 112.8 13.1 111.8 99 53 Water Main Backfill SG 5 112.8 13.6 106.9 95 54 Water Main Backfill SG 5 112.8 15.9 108.4 96 55 Water Main Backfill SG 5 112.8 14.8 106.9 95 56 Water Main Backfill SG 5 112.8 14.7 106.6 95 57 Water Main Backfill SG 5 112.8 14.1 107.1 95 Report ID 7334.06 E 01032023 Page 2 of 2 Earth Solutions NW, LLC 49 50 51 52 55 54 57 56 53 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01182023 Date Wed 1/18/2023 Weather Raining 45°F Arrival/Departure Time(s) 9:15AM – 9:30AM Travel Time (hr)N/A Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee | (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the modular block wall. While on site, the following was observed: Modular Block Wall Repair Observations: On Lot 5, ESNW rep observed a small section of the base of top wall that had been washed out. ESNW recommends removing the 2 layers of blocks and repairing the base with at least 4–6 inches of crushed rock. The repaired subgrade area should be observed in a firm and unyielding condition (by ESNW) prior to wall reconstruction. Contractor relayed that the wall was scheduled to be rebuilt next week (the week of January 23). See below for map and images. ESNW rep will return as requested. Base needs repair Report ID 7334.06 E 01182023 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 01202023 Date Fri 1/20/2023 Weather Partly Cloudy 38°F Arrival/Departure Time(s) Proctor Transport 9:15 AM - 10:15AM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to collect organic soil liner sample. ESNW rep collected a sample of the imported organic soil that will be used as a treatment layer underneath the on-site Road A. The sample was transported to the lab for analysis of the organic content and cation exchange capacity (by a third-party lab). ESNW rep will return upon request. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 01252023 Date Wed 1/25/2023 Weather Mostly Cloudy 43°F Arrival/Departure Time(s) 1:00 PM – 1:30 PM Travel Time (hr)0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Permit No(s). Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe installment of organic soil liner. While on site, the following was observed: Organic Soil Liner Observations: Upon arrival, ESNW rep observed contractor begin grading organic soil liner along Road A. Contractor plans on placing 24 inches of organic soil and then adding 12 inches of 5/8-inch washed rock above it. Installation of road subgrade will continue tomorrow, January 26. ESNW rep will return upon request. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01262023 Date Thu 1/26/2023 Weather 46F Cloudy Arrival/Departure Time(s) 12:30PM – 3:00PM Travel Time (hr).5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the installation of the imported organic soil. While on site, the following was observed: Imported Organic Soil Installation: Upon arrival on site, ESNW rep observed the general contractor installing an approximately two-foot- thick lift of imported organic soil. The general contractor used a dozer and vibratory drum roller to grade and compact the imported organic soil to the specified two-foot thickness. This layer is to serve as a treatment layer underneath the roadway infiltration system (permeable asphalt). Please see attached pictures and map. ESNW rep will return when requested next by the client. 2 foot lift of black imported organic soil Report ID 7334.06 E 01262023 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01272023 Date Fri 1/27/2023 Weather 46F Cloudy Arrival/Departure Time(s) 11:30AM – 2:00PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the installation of the 5/8-inch washed rock on Road A subgrade. While on site, the following was observed: 5/8th Washed Rock Installation: Upon arrival on site, ESNW rep observed the general contractor installing an approximately one-foot- thick lift of 5/8-inch washed rock in the subgrade of Road A. This is placed directly over top the approximately two-foot-thick layer of imported organic soil. Both layers were installed per the approved plans as part of the Road A permeable pavement system. The general contractor was using a dozer and vibratory drum roller to grade and compact the 5/8-inch washed rock into place. Please see attached pictures and map. ESNW rep will return when requested next by the client. 5/8th washed rock installation area. Report ID 7334.06 E 01272023 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01302023 Date Mon 1/30/2023 Weather 38F Sunny Arrival/Departure Time(s) 1:30PM – 2:30PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the installation of the 5/8-inch washed rock on Road A subgrade. While on site, the following was observed: 5/8-inch Washed Rock Installation: Upon arrival on site, ESNW rep observed the general contractor continue installation of an approximately one-foot-thick lift of 5/8-inch washed rock in the subgrade of Road A. This was placed directly atop the approximately two-foot-thick layer of imported organic soil. The general contractor was using an excavator and vibratory drum roller to grade and compact the 5/8-inch washed rock into place. Please see attached picture and map bellow. ESNW rep will return when requested next by the client. 5/8-inch washed rock installation area. Report ID 7334.06 E 01302023 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 01312023 Date Tue 1/31/2023 Weather 40F Cloudy Arrival/Departure Time(s) 1:30PM – 2:30PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the installation of the 5/8-inch clean crushed rock on Road A subgrade. While on site, the following was observed: 5/8-inch Clean Crushed Rock Installation: Upon arrival on site, ESNW rep observed the general contractor continued installation of an approximately one-foot-thick lift of 5/8-inch clean crushed rock in the subgrade of Road A. This is placed directly atop the approximately two-foot-thick layer of imported organic soil. The general contractor was using an excavator and vibratory drum roller to grade and compact the 5/8-inch clean crushed rock into place. Additional site observations: While on site, ESNW rep was asked to probe the sidewalk subgrade along Aberdeen Ave NE. ESNW rep used a ½-inch-diameter steel rod to probe the soil. ESNW rep noted firm and unyielding density in sidewalk subgrade. This is suitable for the proposed planned side walk. Please see attached picture and map bellow. ESNW rep will return when requested next by the client. Report ID 7334.06 E 01312023 Page 2 of 2 Earth Solutions NW, LLC 5/8" clean rock installation area. Side walk subgrade probe. Side walk subgrade probe. Side walk subgrade probe. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 02012023 Date Wed 2/1/2023 Weather 45F Mostly Sunny Arrival/Departure Time(s) 2:30PM – 4:00PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe continued installation of 5/8-inch clean crushed rock in Road A subgrade. While on site the following was observed: Road A Sub Grade: Upon arrival on site, ESNW rep observed the general contractor continuing to install the 5/8-inch clean crushed rock in road A subgrade. The general contractor was using a large excavator and a vibratory drum roller to grade and compact the 5/8-inch clean crushed rock. The 5/8-inch clean crushed rock will be a 1-foot-thick layer over the 2-foot-thick organic soil liner in road A subgrade. ESNW rep also marked out 3 locations where the rock will be removed to perform an infiltration test the following day. Please see attached picture and map bellow. ESNW rep will return when requested next by the client. Report ID 7334.06 E 02012023 Page 2 of 2 Earth Solutions NW, LLC 5/8th washed rock Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 3 Report ID 7334.06 E 02022023 Date Thu 2/2/2023 Weather 35F Mostly Sunny Arrival/Departure Time(s) 9:00AM – 4:30PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe a proof roll on Road A. While on site, the following was observed: Road A Proof Roll: Once on site, ESNW rep was asked to observe a proof roll of Road A prior to curbside concrete pour. ESNW rep observed a large backhoe weighing approximately 11 tons roll over the 5/8-inch rock subgrade and observed for indications of deflection. Some deflection was observed, and ESNW rep recommended the contractor re-compact the subgrade. Contractor used a large vibratory drum roller to re-compact the subgrade, making multiple passes, and the proofroll was re-attempted. No significant deflections were observed during the second proofroll, and the subgrade was considered suitable for the proposed curb placement. Please see attached pictures and map bellow. Note: See separate field report for today's infiltration testing activities in Road A. ESNW rep will return when requested next by the client. Report ID 7334.06 E 02022023 Page 2 of 3 Earth Solutions NW, LLC Road A proof roll. Report ID 7334.06 E. 02022023 Page 3 of 3 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 02032023 Date Fri 2/3/2023 Weather 51F Raining Arrival/Departure Time(s) 1:30PM – 3:00PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe the installation of a retaining wall. While on site, the following was observed: Curb: Upon arrival on site, ESNW rep noted that a concrete curb had been installed over the 5/8-inch rock in road A. Continued prep work was done to the roadway in preparation for paving the following week. Retaining Wall South East Corner: Once on site, ESNW rep noted the continued installation of the retaining wall in the southeast corner of the site. ESNW rep will return next week for observation and compaction testing when requested. Please see attached pictures and map bellow. ESNW rep will return when requested next by the client. Report ID 7334.06 E 02032023 Page 2 of 2 Earth Solutions NW, LLC Curb side installation. Retaining Wall. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 02062023 Date Mon 2/6/2023 Weather 40F Cloudy Arrival/Departure Time(s) 2:00PM – 3:00PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe and test compaction of south Keystone retaining wall backfill. While on site, the following was observed: South Retaining Wall: Upon arrival on site, ESNW rep obtained several density tests along the South retaining wall. The in-place material (brown silty sand) had been compacted with a large vibratory drum roller and in some places with a hoe-pack. After taking the density tests, ESNW rep noted that all locations tested were at least 95% of the modified proctor value. Please see map and table below. ESNW rep will return when requested next by the client. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 58 South Retaining wall backfill SG 5 112.8 15.8 107.7 95 59 South Retaining wall backfill SG 5 112.8 15.3 110.4 98 60 South Retaining wall backfill SG 5 112.8 14.9 107.5 95 Report ID 7334.06 E 02062023 Page 2 of 2 Earth Solutions NW, LLC 58 59 60 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 E 02082023 Date Wed 2/8/2023 Weather 40F Cloudy Arrival/Departure Time(s) 1:00PM – 1:30PM Travel Time (hr).5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to test compaction of east retaining wall backfill. While on site, the following was observed: East Retaining Wall: Upon arrival on site, ESNW rep was informed that the vibratory drum roller was not on site. No compaction had taken place along the east retaining wall. ESNW rep spoke with the contractor's foreman (Victor) and was requested to return next week for compaction testing when the vibratory drum roller is available to compact the retaining wall backfill. ESNW rep will return when requested next by the client. Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 02162023 Date Thu 2/16/2023 Weather 35F Mostly Sunny Arrival/Departure Time(s) 2:00PM – 2:45PM Travel Time (hr)0.5 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. As requested by the client, ESNW rep was on site to observe proof-roll of Road A subgrade. While on site, the following was observed: Road A Proof Roll: Once on site, ESNW rep was asked to observe a proof roll of Road A, prior to asphalt placement. ESNW rep observed a large dump truck, weighing approximately 25 tons, slowly pass over the 5/8-inch washed rock and observed for signs of deflection. No significant deflection was observed during the proofroll, and the subgrade was considered suitable for asphalt placement. Please see attached pictures and map bellow. ESNW rep will return when requested. Road A proof roll. Report ID 7334.06 E 02162023 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0322 Date Wed 3/22/2023 Weather Clear skies, 53°F Arrival/Departure Time(s) 11:45 AM – 12:15 PM Travel Time (hr)1.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Maricel Fee (425) 984-9615 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe and test modular block wall. While on site, the following was observed: ESNW rep observed wall contractors had previously completed the second tier of modular block wall on the south and east sides of the site. Rep observed geogrid had been installed in the correct orientation behind the 2nd and 4th block rows. Each row was backfilled with an at least 18-inch-wide column of clean crushed rock and compacted with a vibratory plate compactor. Backfill consisted of sandy native material that was compacted with a vibratory compactor. Compaction tests indicated an adequate compaction of at least 95% of the maximum dry density of the modified proctor at tested locations. See map below for approximate test location. Test Number Test Location Elevation Reference Proctor Maximum Dry Density (pcf) Test Moisture (%) Test Dry Density (pcf) % of MDD 61 East retaining wall backfill SG 5 112.8 13.3 106.6 95 62 East retaining wall backfill SG 5 112.8 11.1 107.2 95 63 South Retaining wall backfill SG 5 112.8 10.0 106.8 95 64 South Retaining wall backfill SG 5 112.8 10.9 107.1 95 65 South Retaining wall backfill SG 5 112.8 12.1 107.4 95 Report ID 7334.06 E 2023 0322 Page 2 of 2 Earth Solutions NW, LLC Test 65 Test 64 Test 63 Test 62 Test 61 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0323 Date Thu 3/23/2023 Weather 35°F Mostly Sunny Arrival/Departure Time(s) 1:00PM – 2:00PM Travel Time (hr)0.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe and probe sidewalk subgrades. While on site, the following was observed: Sidewalk Subgrade: ESNW rep was asked to observe and probe the subgrade of the sidewalks on site. The subject sidewalks were two sidewalks parallel with Road A, with the north end sidewalk jogging to follow Aberdeen Ave NE. ESNW rep used a ½-inch-diameter steel rod to probe the sidewalk subgrade before concrete is to be poured. ESNW rep observed medium dense conditions in probed locations, which are considered suitable for concrete placement. Please see attached pictures and map bellow. Sidewalk subgrade probe. Report ID 7334.06 E 2023 0323 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E. 2023 0328 Date Tue 3/28/2023 Weather 59°F Cloudy Arrival/Departure Time(s) 2:00PM – 3:00PM Travel Time (hr)0.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe installation of drywells on property lots. While on site, the following was observed: Drywells: Once on site, ESNW rep was asked to observe the installation of drywells on each of the 8 building lots: 4 on the North lots and 4 on the South lots. Each drywell is to be lined with fabric on the sides and top before being filled with 2 feet of 1 ½ inch washed rock. Each drywell was observed to expose brown to tan sandy material (native poorly graded sand) within the excavation. Each drywell is approximately 5 feet by 15 feet (area), with a variable depth of 5.5 feet to 6.5 feet. In general, ESNW rep observed the drywells being constructed in accordance with the approved plans and our geotechnical recommendations. Please see attached pictures and map below. Dry wells Dry wells Report ID 7334.06 E. 2023 0328 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0329 Date Wed 3/29/2023 Weather 57°F Cloudy Arrival/Departure Time(s) 2:40PM – 3:00PM Travel Time (hr)0.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe installation of drywells on property lots. While on site, the following was observed: Drywells: Once on site, ESNW rep was asked to observe the installation of drywells on each of the 8 building lots. Each drywell is to be lined with fabric before being filled with 2 feet of 1 ½ inch washed rock. Due to setbacks on site, only the drywell on lot 1 was started at the time of the site visit. ESNW rep will return for further documentation later this week. Please see attached pictures and map below. Dry wells Dry wells Report ID 7334.06 E 2023 0329 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0330 Date Thu 3/30/2023 Weather 57F Cloudy Arrival/Departure Time(s) 2:40PM – 3:00PM Travel Time (hr).25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe installation of drywells on property lots. Dry Wells: Once on site, ESNW rep was asked to observe the installation of drywells on each of the 8 building lots. Each drywell is to be lined with fabric before being backfilled with 2 feet of 1 ½-inch washed rock for infiltration. Due to setbacks on site, only the drywell on lot 1 was started at the time of the site visit. ESNW rep will return for further documentation later this week, as requested. Please see attached map and picture below. Dry wells Dry wells Report ID 7334.06 E 2023 0330 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0331 Date Fri 3/31/2023 Weather 59F Cloudy Arrival/Departure Time(s) 2:00PM – 3:00PM Travel Time (hr)0.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Nathan Dalton | 206.355.9308 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe completion of drywells on property lots. While on site, the following was observed: Drywell Completion: Once on site, ESNW rep was asked to observe the completion of dry wells on each of the 8 building lots: 4 on the North lots and 4 on the South lots. Each drywell is to be lined with fabric on the sides and top before being filled with 2 feet of 1 ½ inch washed rock. Then, filter fabric is to be installed over the washed rock before being backfilled with native material to subgrade. Each drywell is approximately 5 feet by 15 feet (area), with a variable depth of 5.5 feet to 6.5 feet. In general, ESNW rep observed the drywells being constructed in accordance with the approved plans and our geotechnical recommendations. Please see attached pictures and map below. Dry wells Dry wells Report ID 7334.06 E 2023 0331 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0404 Date Tue 4/4/2023 Weather Clear 50s° Arrival/Departure Time(s) 11:45AM-12:30PM Travel Time (hr)0.50 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Danny Hernandez Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe pervious pavement installation on the main tract road (Road A). Pervious Pavement Prior to arrival, contractor placed two lifts of porous asphalt, approx. 3.25 inches each, directly on permeable base. ESNW rep observed the contractor compacting the asphalt using dual medium vibratory drum rollers and small plate compactors near concrete sidewalks. Report ID 7334.06 E 2023 0404 Page 2 of 2 Earth Solutions NW, LLC Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0421 Date Fri 4/21/2023 Weather 47°F, overcast Arrival/Departure Time(s) 10:10AM/1:10PM, 4:00PM/4:30PM Travel Time (hr)1.0 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Ryan Sanderson|206.565.4683 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep was on site to observe and test Hot-Mix Asphalt (HMA) overlay of Aberdeen Avenue NE. While on site, the following was observed: Paving: ESNW rep arrived on site and observed contractors were in the process of grinding Aberdeen Avenue NE to intended subgrade for paving. Upon completion of grinding, ESNW rep observed contractors begin laying approximately 2-to-3 inches of HMA and compacting with a vibratory double-drum roller. Compaction testing indicated contractor had achieved at least 92% of the Rice value where tested (See figure and table 1). Test Number Test Location Elevation Rice Value (pcf) Test Density (pcf) % of Rice Value 70 Aberdeen Ave, Driveway lot 8 FG 154.1 141.6 92 71 Aberdeen Ave, Patch 1 -2"154.1 141.9 92 72 Aberdeen Ave, Patch 2 -2"154.1 141.7 92 73 Aberdeen Ave, Patch 3 -2"154.1 141.6 92 74 Aberdeen Ave, Patch -2"154.1 141.9 92 75 Aberdeen Ave, Lot 1 Driveway FG 154.1 141.4 92 Table 1) Compaction tests Report ID 7334.06 E 2023 0421 Page 2 of 2 Earth Solutions NW, LLC 70 71 72 73 74 75 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 2 Report ID 7334.06 E 2023 0425 Date Tue 4/25/2023 Weather Sunny Arrival/Departure Time(s) 9:45-12:45 Travel Time (hr)2.25 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Brian Hebert | 206-474-9643 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By LAC Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. ESNW rep. was on site to observe and test the asphalt placement. ESNW rep. observed asphalt placement and compaction with dual drum rollers on Aberdeen Ave NE. Density tests were taken by ESNW rep. shortly after rollers cleared the test area and showed an adequate compaction of at least 92% of the Rice value supplied by the contractor. The asphalt was placed in an approximate 2-inch lift. Approximate test locations are noted on page 2. Report ID 7334.06 E 2023 0425 Page 2 of 2 Earth Solutions NW, LLC Test Number Test Location Elevation Rice Value (pcf) Test Density (pcf) % of Rice Value 66 Aberdeen Ave, West Lane FG 154.1 141.3 92 67 Aberdeen Ave, West Lane FG 154.1 142.1 92 68 Aberdeen Ave, East Lane FG 154.1 142.0 92 69 Aberdeen Ave, East Lane FG 154.1 141.9 92 66 69 68 67 Earth Solutions NWLLC 15365 NE 90th Street, Suite 100 Redmond, WA 98052 Main (425) 449-4704 | Fax (425) 449-4711 esnw.com FIELD REPORT Project No. 7334.06 Page 1 of 1 Report ID 7334.06 G 02022023 Date Thu 2/2/2023 Weather 50°F Sunny Arrival/Departure Time(s) 9:00–15:00 Travel Time (hr) 0.75 Project Name Brennon Landing Location 1400 Aberdeen Ave NE, Renton ESNW Rep. & Phone Kyler Kelly, L.G. | 206.856.3937 Owner Info/Contact MainVue WA, LLC | Allison Rothstein Owner’s Rep. Info/Contact Barghausen Consulting Engineers, Inc. | Tom Barghausen, P.E. General Contractor Info/Contact Van Hoof Construction, LLC Reviewed By Initials/Date KDH Initials/Date Field Supervisor Project Manager Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative’s observations and testing of the contractor’s work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state or federal regulations, is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager. At the contractor’s request, ESNW rep was on site to perform infiltration testing on the organic treatment liner underlying Road A at the site. Treatment Liner: While on site, ESNW rep performed confirmation infiltration testing within the imported treatment liner material underlying Road A on the subject site. The infiltration confirmation testing was completed in general accordance with the 2017 Renton Surface Water Design Manual (2017 RSWDM). Three separate EPA falling head infiltration tests, spaced relatively evenly apart, were simultaneously conducted within the upper 6 inches of the treatment liner material. Results of the testing confirmed an average infiltration rate of 1.6 in/hr within the treatment liner material. Based on 2017 RSWDM requirements, the imported organic soil exhibits an acceptably low infiltration rate to function as a treatment liner, as it is less than the maximum allowed rate of 2.4 in/hr. Laboratory test results analyzing the cation exchange content (CEC) and organic matter (OM) content of the imported organic soils were provided by the material supplier/source. The supplied test results are listed below: Sample # CEC (meq/100 g) OM (%) 1 10.2 5.5 Based on the 2017 RSWDM, the tested treatment liner meets the design criteria for an amended or imported soil, with a minimum CEC of 10 meq/100 g (upper 8 inches) and minimum OM content of 1%. Confirmation infiltration testing and laboratory results indicate the imported organic soil has been placed in a manner to be considered suitable for use as a treatment liner underneath Road A. ESNW will return upon request.