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Home My WebLink AboutNotification sent to MultiCareCM of - AUBURN WASHINGTON July 20, 2018 MultiCare Health Systems c/o CB Richard Ellis 2106 Pacific Avenue, Suite 400 Mail Stop 2106-4-CBRE Tacoma, WA 98402-0299 Attention: Property Management Dear Sir or Madam: Nancy Backus, Mayor -) W-st Main Street * Auburn VVA 980ol -4998 * www.auburnwa.gov * 253-931-3000 This official notice pursuant to paragraph 5.9 of your lease with the City granted under Resolution 4638. It is to inform you that the City of Auburn has authorized agents of Sound Transit to perform Geotechnical Site Investigation. Attached to this notice is a brief description of the activities and testing being conducted, along with the timeline and location of the testing. These activities will require that select parking spaces will be removed from use by MultiCare from July 24, 2018 until August 1, 2018. Please note the timeline bullet points provided on page 3 of the attachment. It is estimated that the testing will effect MultiCare parking stalls 110-115 (BA-1), 29-30, 43-44, 57-58 (BA-2) & 59-65 (BA-3). No parking signs will be put out in advance of the testing but the City is asking that this information be disseminated ahead of time. I am also providing this letter in person to MultiCare. If you have any further questions please feel free to contact me. Sincerel /'' Josh Arndt Sr. Economic Development Officer 253.288.4325 Enclosure: Memorandum from CDM Smith to Josh Arndt, from Karen Irby -Smith Copy: Doug Lein Dana Hinman AUBURN * MORE THAN YOU IMAGINED Smith Memorandum To: Mr. Josh Arndt (City of Auburn Sr. Economic Development Officer) From: Karen Irby -Smith (CDM Smith) Copy: Jason Suzaka, Melanie Mayock (Sound Transit) Reviewed by: Sri Rajah & Robert Gorman (CDM Smith) Date: July 11, 2018 Subject: Geotechnical Site Investigation for the Proposed Auburn Parking Garage This memorandum presents an outline of our subsurface exploration program at the proposed Auburn parking garage located at the northwest corner of 1st Street NW and A Street NW, Auburn WA. The site is currently occupied by a City of Auburn parking lot, as shown on Figure 1. Figure 1: Boring Layout Plan for Auburn Garage 'f IS v t ,W W o 0 f m t r10 g W Q J Wow t y JC7J� i A 'Co i Q Y W ' 1 1 � Auburn Exploration Outline_Final.dou Mr. Josh Arndt July 11, 2018 Page 2 Prior to staring drilling activities, a utility locate service will be performed at the proposed boring locations. Initially, we will notify Washington Utility Notification Center who will locate underground utilities within the public right-of-way up to the City of Auburn property being used for the parking garage. We will then use a private utility location service to locate utilities within the City of Auburn property. For this purpose, we have contracted with Applied Professional Services (APS). In addition to the efforts to locate existing utilities, we will also use a vacuum truck to advance the boreholes to about 5 to 6 feet below the ground surface to minimize the potential disturbance and/or damage to underground utilities. Five borings as shown on Figure 1 will be advanced to the approximate depth of 100 feet below the existing ground surface using hollow -stem auger and mud rotary drilling techniques. Soil samples will be obtained in general accordance with the Standard Penetration Test (SPT) and Split -Barrel Sampling of Soils (ASTM D 1586 & 3550) every 2.5 feet to a depth of 20 feet, then at 5-foot sampling intervals for the remainder of the borings. We will also be installing one Vibrating Wire Piezometer (VWP) in one of the boreholes (BA-3) to measure groundwater elevations. The monitoring device will be installed by securing a sensor and cable to a small diameter pipe and then backfilling the borehole with grouting. There will be a monument cover to access the cable but no open monitoring well pipe. Soil cuttings will be contained within sealed 55-gallon drums then disposed of at the end of the drilling program. At the completion of each boring, the site will be cleaned, borehole patched, and the site restored to match existing conditions. It is not anticipated that contaminated soils will be encountered, however if potential contamination is detected by either Photoionization Detector, odor, or sheen observed within the soils or groundwater, the cuttings will be segregated. The potentially contaminated soils will be sealed in 55-gallon drums, secured and left on site until further analysis to determine the extent of the contamination, and then properly disposed to appropriate disposal sites. The following presents the anticipated timeline for the above described tasks: • July 12, 2018 @ 10:00 AM: Meet with City of Auburn representative Mr. Doug Lein to discuss borehole locations, impacted parking stalls and if the city has a preference on the drilling order. CDM Smith field representative (Karen Irby -Smith) will mark the boring locations in white paint and request a public utility locate from the Washington Utility Notification Center. July 13 to 19, 2018: Public utility locators notified by Washington Utility Notification Center will mark utility lines leading up to the site. July 19, 2018 @ 8:00 AM: Applied Professional Service (APS) will locate and mark utilities within the parking lot. We have reviewed drawings of the subject parking lot (prepared by Barghausen, Consulting Engineers, Inc. for Mel's Lumber JLO Washington Enterprises, Inc., and Auburn Exploration Outline Flnal.docx Mr. Josh Arndt July 11, 2018 Page 3 dated O 1/26/10) for existing utilities information (See Attachment). If the city has any additional utility plans, please send them to me (Karen Irby -Smith, email: irbysmithke@cdmsmit.com) and copy Geotechnical Engineer, Sri Rajah and Project Manager , Robert Gorman (�7ormararj a'cclmsmith.cona). July 24, 2018: CDM Smith will set up "No Parking" signs at all boring locations and impacted parking stalls. The signs will indicate no parking between July 24"' and August 1, 2018 at times designated by the City. July 25, 2018 @ 8:00 AM: Vacuum truck will pot -hole or clear all the boreholes to the depth of 5 to 6 feet below pavement. The drill rig will mobilize onto the first cleared borehole and begin drilling, all others will be backfilled. We anticipate each pothole will take about 2 hours to clear and backfill. Personnel will also be on site to provide the crew with cultural sensitivity training during the pot -holing and drilling process. This training will identify potential and most common archaeologic resources and artifacts that may be encountered during the exploration program. July 25 to August 1, 2018: Drilling and sampling will begin as soon as the first borehole has been cleared to 5 to 6 feet. We anticipate each borehole will take about 8 to 10 hours to complete. Once the boring is complete the site will be cleaned, patched, and the no parking signs for the completed borehole site would be removed. We look forward to working with you on this project. If you have any questions or comments please contact one of us, listed below: • Field representative: Karen Irby -Smith (email: cell: 425-766-4846) • Geotechnical Engineer: Sri Rajah (email: raiahs'u Jinsanilh.coin; cell: 425-229-3952) Project Manager: Robert Gorman (email: t<ormam- u'cdms,iiith.coan; cell: (425) 260-0686) Auburn Exploration Outline Finai.d— ------------ f SITE PLAN -1\4F--,,L'S- LUMBER Poll-HONS OF THE 190/4 NE114, SEC. 13, T21N; R4E, W.M., CITY OF AUBURN, WASHINGION 20' ........................................... . .. ........... 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