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Home My WebLink AboutDERR-2024-009547 __________________________________________________________________________________________ Shulsen Property, Sandy, Utah Atlas 358 South 700 East, B518 Salt Lake City, Utah 84102 www.oneatlas.com Office: 801-935-4917 June 28, 2024 Ms. Eileen Brennan Utah Department of Environmental Quality Division of Environmental Response and Remediation 195 North 1950 West P.O. Box 144840 Salt Lake City, UT 841114 SUBJECT: Abbreviated Corrective Action Plan (CAP) Shulsen Property (Vacant Lot – Monroe Street) 10125 South 280 West Sandy, Utah 84070 Facility ID No. 4002449 Release Site MSO Dear Ms. Brennan: Please find enclosed the abbreviated CAP to remove and dispose of petroleum impacted soil at the above referenced site. Our services consist of professional opinions and recommendations made in accordance with generally accepted geotechnical and environmental engineering principles and practices. This warranty is in lieu of all other warranties either expressed or implied. Should you have any questions, please do not hesitate to contact us at 801-971-1064. Sincerely, Atlas James J. Coletta, P.G. Branch Manager Certified Utah PST Consultant Shulsen Property, Sandy, Utah Page 1 Atlas ABBREVIATED CORRECTIVE ACTION PLAN EXCAVATION AND DISPOSAL OF PETROLEUM IMPACTED SOIL SHULSEN PROPERTY 10125 SOUTH 280 WEST SANDY, UTAH FACILITY ID 4002449 LUST ID MSO 1.INTRODUCTION This corrective action plan (CAP) has been prepared at the request of the Utah Department of Environmental Quality, Division of Environmental Response and Remediation (DERR) and the Wasatch Residential Group to address residual soil impacts associated with a release from a former heating oil underground storage tank (UST) at the property. 2.BACKGROUND The property is located at 10125 South 280 West, Sandy, Utah, and is the location of the former residential property. See Figure 1 for the Site Vicinity Map and Figure 2 for the Site Map. Information provided to Atlas by Wasatch Residential Group indicates the site is slated for development as a multi-family apartment complex and is currently vacant. Atlas reviewed prior reports associated with a release (Release ID MSO) reported from a former 500 gallon heating oil UST at the above referenced site. The results of limited subsurface investigation (Terracon, 2010) conducted at the site indicated TPH-DRO impacts (1400 mg/kg) above the Initial Screening Level (ISL), but below the Tier I Screening Level within the former tank basin. Upon review of the data the DERR issued a No Further Action Letter on June 4, 2015. The criteria for the closure was based upon the land use (Commercial), exposure pathways, potential receptors, and other site-specific risk characteristics. The NFA letter stated that if any of these criteria change in the future, additional corrective actions may be required. In January 2024 the Client contact Atlas to discuss the regulatory requirements associated with re- opening the LUST case in order to obtain ISL closure. With authorization from the Client, Atlas then reached out to the DERR Project Manager, Ms. Eileen Brennan, to discuss re-opening the release case. In late March the DERR re-opened the LUST case and requested that a CAP be prepared to address the remaining petroleum impacted soil. This proposed CAP presents a brief description of the tasks to be performed including a schedule for completing the activities described herein. The primary purpose of the proposed field effort is to remove impacted soil above the DERR ISLs. 3.SCOPE OF WORK This proposed CAP describes activities relating to excavation, transportation, and disposal of petroleum impacted soil; back fill and compaction of the excavated area; and then preparation of a report documenting the field activities. Each task is described further in the following paragraphs. The proposed area of excavation is present in Figure 2. Shulsen Property, Sandy, Utah Page 2 Atlas 3.1 Task 1 – Public Notification Task 1 will involve the preparation and distribution of a Public Notice summary letter explaining the proposed remedial activities. The public notice would be distributed by hand by Atlas personnel to the adjacent property owners. While visiting each property, Atlas personnel will answer questions and make the necessary plans to minimize the impacts of the proposed excavations on the surrounding residents and businesses. The public will have two weeks to comment on the propose work. Once the public comment period has ended, the work would be scheduled to begin within 15 days of the end of the public comment period. A draft copy of the Public Notice is included Appendix A of this CAP. 3.2 Task 2 – Soil-Excavation, Transport, Disposal, and Confirmatory Sampling The proposed area of excavation includes the area in the direct vicinity of the former heating oil UST basin (Figure 2). The soil removal effort will encompass an area approximately 15 feet long by 15 feet wide, and would extend to a depth of approximately 10 feet below grade. Based upon review the subsurface investigation data collected at the site, the first five feet of soil is expected to be clean and will be stockpile on site. Groundwater is not expected to be encountered during the field effort; therefore, dewatering of the excavation is not anticipated. Excavation of the proposed area will involve mobilizing a contractor to the site and excavating approximately 85 yd3 of soil of which 42 yd3 are anticipated to be impacted. Security fencing will be installed at the start of the field work. Prior to mobilization, Blue Stakes of Utah will be notified and the site will be marked for underground utilities. In addition to Blue Stakes, a private underground utility locating contractor will be retained to locate all underground utilities in the direct vicinity of the proposed excavation. Prior to the start of the soil removal effort, up to three small test pits will be excavated using a track-driven backhoe to a depth of approximately 10 feet in attempted to pinpoint the area of the former UST. In order to setup the soil disposal profile, one soil sample will be collected from the area and submitted to a testing laboratory for analysis of benzene, toluene, ethyl benzene, total xylenes, naphthalene (BTEXN) using USEPA Method 8260, and for total petroleum hydrocarbons as diesel (TPH-DRO) using USEPA Method 8015. An organic vapor monitor (OVM) will be used to segregate the impacted and clean soil. Soil registering concentrations of 20 part per million (PPM) or greater on the OVM will be considered impacted. Soil determined to be impacted will be transported to E.T. Technologies Soil Reclamation facility located in Salt Lake City and disposed. Upon completion of the soil removal effort confirmatory soil samples will be collected from the side-walls and floor of the excavation. A State of Utah Certified Soil and Groundwater Sampler will conduct the sampling under the direction of a Utah Certified UST Consultant, following standard soil sampling protocols. The confirmatory samples will be transported under chain-of- custody documentation to a Utah-certified laboratory for analysis of BTEXN and TPH–DRO within allowable holding times. Upon completion of the soil removal effort, the excavation will remain open, and the backfill and compaction effort will be completed by the General Contractor retained by the property owner to redevelop the property. 3.3 Task 3 – Soil Excavation and Confirmation Soil Sampling Report Following receipt of laboratory data, a soil excavation summary report will be prepared. The report will include a description of soil excavation and confirmatory sampling activities, a site map showing the outline of the excavation with confirmatory sample locations, analytical results, waste disposal documentation, and photographs of various stages of the soil removal process. Shulsen Property, Sandy, Utah Page 3 Atlas 4. DELIVERABLES The anticipated deliverables for the work identified in this proposed CAP Plan include the following: • Soil excavation and confirmation soil sampling report. 5. PROPOSED PROJECT SCHEDULE The proposed schedule for performance of the activities described herein is presented in Table 1. 6. PERSONNEL Key personnel for the proposed activities are as follows: • Senior Project Manager – Jim Coletta; • Project Geologist – Beau Anderson 7. CONTRACTORS Atlas will oversee the work and will retain a subcontractor to remove and transport the soil. The laboratory analysis will be conducted by a Utah certified testing laboratory. 8. EXCEPTIONS, ANTICIPATED PROBLEMS, OR SPECIAL REQUIREMENTS It is anticipated that the native materials might contain coarse grained sands, gravels, and cobbles at percentages that would make it inappropriate for use as backfill material. It is possible that additional soil may need to be removed from the site and properly disposed of. It is also possible that the size of the excavations might need to be enlarged if conditions encountered during field work suggest significant impacts extend beyond the limits of the proposed excavations. Before expanding the proposed excavation area, Atlas will discuss all modification to the scope of work with the Client and UDEQ. At this time, no other exceptions or special requirements to the proposed Work Plan are anticipated. In the event exceptions or special conditions arise, Atlas would amend this proposed CAP or submit a new CAP to the Client and UDEQ for approval before initiating any work outside the scope of services described herein. FIGURES 350 South 700 East, 518B Salt Lake City, Utah 84102 (801) 935-4917 SITE VICINITY MAP FIGURE 1 SOURCE: Google Maps DRAWN BY: JC DATE: 06/24 REVIEWED BY: JC PROJECT NO: 271EM00866 Shulsen Property 10125 South 280 West (Monroe St.) Sandy, Utah 84070 Note: Map Not to Scale Subject Property 358 South 700 East, B518 Salt Lake City, Utah 84102 (801) 935-4917 PROPOSED SOIL EXCAVATION MAP FIGURE 2 SOURCE: Google Maps DRAWN BY: JC DATE: 06/24 REVIEWED BY: JC PROJECT NO: 271EM00866 Shulsen Property 10125 South 280 West (Monroe St.) Sandy, Utah 84070 Scale: 1” = 76’ Mo n r o e St r e e t In t e r s t a t e 15 Property Boundary Approximately location of former heating oil UST and proposed area of excavation TABLES TABLE 1 PROPOSED PROJECT SCHEDULE TASK June 2024 September 2024 October 2024 1. CAP Preparation X 2. Public Notification, Test Pit Sampling, Soil Excavation, and Confirmatory Sampling X 3. Excavation Report X APPENDIX A Public Notice Public Notification For Removal of Petroleum Impacted Soil Shulsen Property 10125 South 280 West Sandy, Utah Date of Submittal of Public Notice: TBD Atlas Technical Consultants plans to begin construction activities associated with the removal of petroleum impacted soil at the property known as the Shulsen Property. It is anticipated that approximately 85 yd3 of soil will be removed of which 42 yd3 are anticipated to be impacted. The proposed area of excavation is located within the property boundary. Upon completion of the soil removal and sampling efforts, the excavation will be backfilled, compacted and resurfaced with gravel. It is anticipated that trucks will enter and exit the site from Monroe Street. Impacted soil will be transported to the south along Monroe Street to Mall Ring Road. From Mall Ring the trucks will travel south and connect with 10600 South Street. The trucks will then travel west on 10600 South Street until they reach the Interstate 15 north bound on ramp. The soil will be disposed at the E.T. Technologies Soil Regeneration Site located at 6030 West California Avenue, Salt Lake City, Utah. The work is scheduled to begin on date TBD. The excavation and backfilling operations are anticipated to be completed within five business days from the start date. If you have any questions, please contact Jim Coletta, Atlas Branch Manager at 801-971-1064 or Ms. Eileen Brennan, UDEQ Project Manager at 801-536-4100. Written comments can be submitted via email to jim.coletta@oneatlas.com or in writing to: Jim Coletta Atlas Technical Consultants 358 South 700 East, B518 Salt Lake City, UT 84102 Office: 801-935-4917 The public comment period will remain open through 5:00 PM on TBD.