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HomeMy WebLinkAboutDERR-2024-008072February 16, 2024 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR US Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: IS&R/Carr Fork Site-2023 Annual Inspection and Maintenance Report Ken: Atlantic Richfield Company is submitting the enclosed 2023 Annual Inspection and Maintenance Report for the IS&R former NPL Site located in Tooele County, UT. Please call me at (406) 491-7132 or Ryan Anderson at (801) 972-6222 with any questions. Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Cc: Marc Sarmiento-EPA (email) Tony Howes – UDEQ (email) Bryan Slade – TCHD (email) Ryan Anderson – Anderson Engineering (email) Ron Halsey -Atlantic Richfield (email) Lucas Satterlee – Davis Graham & Stubbs LLP (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager INTERNATIONAL SMELTING AND REFINING SITE TOOELE COUNTY, UTAH 2023 ANNUAL INSPECTION AND MAINTENANCE REPORT Atlantic Richfield Company February 2024 2023 ANNUAL INSPECTION AND MAINTENANCE REPORT Prepared For: U.S. Environmental Protection Agency Region 8 1595 Wynkoop St. Denver, CO. 86202-1129 Submitted By: Atlantic Richfield Company 317 Anaconda Road Butte, Montana 59701 Prepared By: 2053 N Hillcrest Road Saratoga Springs, UT 84045 February 2024 i February 2024 2023 ANNUAL INSPECTION AND MAINTENANCE REPORT IS&R/CARR FORK SITE Table of Contents List of Acronyms ......................................................................................................... C 1.0 INTRODUCTION ........................................................................................................... 1 2.0 SUMMARY .................................................................................................................... 2 3.0 SITE INSPECTIONS ...................................................................................................... 2 3.1 Pine Canyon Conservation Area (PCCA) ........................................................ 3 3.2 Tooele Valley Railroad ..................................................................................... 4 4.0 MAINTENANCE ACTIVITIES ........................................................................................ 4 4.1 Smelter Road Gate ................................................................................................. 4 4.2 Fence Maintenance .......................................................................................... 5 4.3 UDWR 2023 Maintenance Activities ................................................................ 5 4.4 Soil Sampling .................................................................................................... 5 4.5 Atlantic Richfield 2023 Maintenance Activities .............................................. 5 5.0 EVALUATION OF INSTITUTIONAL CONTROLS (ICs) ................................................ 6 5.1 Pine Canyon Conservation Area Institutional Controls ................................. 6 5.3 Lincoln Residential Area Institutional Controls ............................................. 7 5.4 Groundwater Institutional Controls ................................................................. 8 6.0 CONCLUSION / RECOMMENDATIONS ....................................................................... 9 6.1 PCCA ................................................................................................................. 9 6.2 Tooele Valley Railroad ................................................................................... 10 6.3 Lincoln Residential Area ................................................................................ 10 6.4 Controlled Groundwater Area ........................................................................ 11 7.0 REFERENCES ............................................................................................................ 12 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site ii February 2024 List of Figures Figure 1 – Site Location Figure 1.2 – Site Boundary Figure 2.1 – Site Record Photo Locations Figure 2.2 – Conservation Area RI Work Areas Figure 3 – Groundwater Sampling Well Locations Figure 4.1 – 2023 PCCA Fence Maintenance Figure 4.2 – 2023 Slag Pile Fence Figure 5.1-5.4 – ISR TVRR Characterization Figure 6 – 2023 Groundwater Arsenic Contours Figure 7.1-7.8 – IS&R 2023 Maintenance As-Built List of Appendices Appendix A: Inspection Forms Appendix B: Site Inspection Photographs Appendix C: UDWR IS&R/Carr Fork Boundary Fence Maintenance Letter Appendix D: 2023 Maintenance Photo Log Appendix E: Correspondance Appendix F: Lab Analytical Soil Sampling Reports 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site iii February 2024 List of Acronyms Acronyms Atlantic Richfield Atlantic Richfield Company CD Consent Decree CGA Controlled Groundwater Area EPA United States Environmental Protection Agency IC(s) Institutional Control(s) IS&R International Smelting and Refining Company LTOM Long Term Operations and Maintenance PCCA Pine Canyon Conservation Area and Wildlife Management Area TVRR Tooele Valley Railroad Area UDEQ Utah Department of Environmental Quality UDWR Utah Division of Wildlife Resources 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 1 February 2024 2023 ANNUAL INSPECTION AND MAINTENANCE REPORT IS&R/CARR FORK SITE 1.0 INTRODUCTION This 2023 Annual Inspection and Maintenance Report has been prepared by Atlantic Richfield Company (Atlantic Richfield) in accordance with the Long-Term Operation and Maintenance (LTOM) Plan (ARC, January 2022) incorporated by reference into the Consent Decree (Civil Action No. 2:16CV982DBP) (CD, 2016) for the International Smelting and Refining Company (IS&R) site (Site). Per Section 2.2.5 of the LTOM Plan, this Report documents inspection and maintenance (I&M) activities conducted in 2023. The Site comprises three areas: the Pine Canyon Conservation Area (PCCA); the Lincoln Residential Area, and portions of the Tooele Valley Railroad (TVRR) outside the PCCA boundary (see Figure 1, Figure 1.2). The 3,000-acre PCCA of open space land encompasses 1,200 acres of reclaimed and remediated land associated with the former smelter operations Site. Significant Site reclamation and remediation activities were completed in 1986, with additional remedial and ongoing maintenance actions completed since. CERCLA response actions were implemented in 2006-2007 (EPA, September 2007), which included, among other things, placement of a clean soil cap over impacted areas, reshaping of the surface for storm runoff control, installation of drainage control structures, and revegetation of disturbed areas (see Figure 2). A LTOM Plan was prepared in 2010 (updated in January 2022) as the controlling document for implementation of operation and maintenance activities that ensure the long- term effectiveness of the Site’s remedial action. Per Section 2.0 of the LTOM Plan, regular Site inspections and maintenance activities are conducted to ensure that remedial features remain in place and are performing as intended, an institutional controls (ICs) evaluation is performed to confirm to the established ICs continue to remain effective in protecting human health and the environment, and annual groundwater monitoring is conducted. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 2 February 2024 Objectives outlined in Section 1.1 of the LTOM include the following: • Maintain site conditions that are protective of human health and the environment. • Conduct operation, inspection, and maintenance of the engineered controls. • Conduct maintenance, inspection, and enforcement of the land restrictions and other Institutional Controls (ICs) necessary for protecting remedies. • Conduct long-term groundwater monitoring to demonstrate the effectiveness of the remedies put into place and confirm the smelter site is not a source of ground- water contamination in the future. • Meet regulatory requirements for the post-remedial action conditions. This Annual Report addresses the LTOM Plan’s requirements to annually report on the Site I&M activities and ICs evaluation for 2023. Groundwater monitoring is addressed in a separate annual report, which for 2023 was submitted to EPA on January 25, 2023. This report is organized as follows: • Section 1.0 – Introduction • Section 2.0 – Summary • Section 3.0 – Site Inspections • Section 4.0 – Maintenance Activities • Section 5.0 – Evaluation of Institutional Controls • Section 6.0 – Conclusion/Recommendations • Section 7.0 – References 2.0 SUMMARY I&M activities conducted during 2023 included inspections of areas with remedial features or to otherwise monitor the effectiveness of the Site remedy, cover repair, Smelter Road gate repair, fence repair, additional fencing at the slag-pile, surficial soil sampling of the TVRR grade within the PCCA, and an evaluation of the established ICs to confirm they continue to be effective in protecting human health and the environment. 3.0 SITE INSPECTIONS Per Section 2.2 of the LTOM Plan, Site inspections are required to be conducted in areas where “waste is left in place”, including areas within the PCCA, the TVRR Trestle, and the TVRR Zions Farm Area at least annually to confirm that remedial action features remain in place and are performing as intended. The 2023 Annual Inspection was conducted in the second quarter of 2023 (See Inspection Forms in Appendix A, Inspection Site Photographs in Appendix B). 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 3 February 2024 3.1 Pine Canyon Conservation Area (PCCA) In accordance with Section 2.2.2 of the LTOM Plan, the 2023 Annual Inspection and other periodic inspections were completed at the PCCA to examine the condition of the Site remedial cover/cap materials, fences, gates, information signs, runoff control berms and channels, drainage structures, fill slopes, vegetation, erosion potential, evidence of unauthorized use, and to otherwise confirm the remedy continues to function as intended. The inspections focused on looking for anomalies that could jeopardize the integrity of the remedial actions such as soil creep, bulging, erosion, differential settlement, or rock degradation. The 2023 Annual Inspection was conducted in June 2023. LTOM Plan Inspection forms were completed during the annual inspection (See Appendix A). The Annual Inspection details observations throughout the entire Site and the PCCA and photographs were taken to document site conditions (see Appendix B) at specific locations as specified by the LTOM Plan (see Figure 2.1). Site maintenance is scheduled and performed as needed, based on observations during inspections and notification from stakeholders of issues warranting further attention. Inspections also looked for physical evidence of uses that are inconsistent with the allowed uses as defined in the 1994 Conservation Easement (ARC, April 1994, as most recently amended in 2011). Per the Conservation Easement, the Utah Division of Wildlife Resources (UDWR) is responsible for maintaining PCAA areas and improvements, including repair of damaged fencing, gates, and signage. In accordance with the LTOM Plan and the Conservation Easement, Atlantic Richfield notifies and coordinates with UDWR on needed fence repairs, e.g., by providing UDWR with photos and coordination on fence break locations as they are identified (See Appendix C). The PCCA boundary fence requires occasional maintenance due to breaks caused naturally, by livestock, and wildlife or in locations cut by individuals trying to gain access at locations other than designated entry points. In 2023, Atlantic Richfield elected to perform fence repairs along the north, east, and portions of the south boundaries. (See Figure 4.1). Three signboards exist at different locations around the boundary of the PCCA to provide information about the area to the public. Two of the signboards are located along Anaconda Road, and one signboard is in place at the parking lot near the south end of Blue Peak Road. Vegetation was inspected over the PCCA including remediated cover areas (See Inspection Forms in Appendix A). The inspections generally showed robust vegetative cover across the PCAA and on remediated areas of the Site. However, certain small areas were identified where cover soil appeared discolored and/or 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 4 February 2024 had sparse/barren vegetation (See discussion in Section 4.0). The UDWR continues to spray for noxious weeds each year and both mows fire breaks and sprays vegetation to limit emergence of vegetation along the PCAA perimeter near current subdivisions. Riprap and vegetation-lined channels are all functioning properly, without noticeable breaching or erosion. Diversion berms are intact and functioning properly. Culverts under roadways are functioning properly on the site. UDWR mows a fire break around the western perimeter of the site each year to minimize potential fire(s) from spreading onto or off of the PCCA. 3.2 Tooele Valley Railroad In accordance with Section 2.2.2 of the LTOM Plan, Atlantic Richfield inspected two areas along the TVRR grade outside the PCCA where waste was left in place (TVRR Trestle Area and TVRR Zions Farm Area) to confirm that remedial action features remain in place and are performing as intended. This included field inspection of cap materials, drainage structures, fill slopes, and vegetation. These TVRR areas are in good condition with no observations of anomalies that could jeopardize the integrity of the remedial actions, nor identification of any maintenance actions needed (See Inspection Forms in Appendix A). 4.0 MAINTENANCE ACTIVITIES Maintenance activities implemented during 2023 are described below with additional details shown on Figure 4.1,4.2,5,7 and photographs in Appendix D. Maintenance activities implemented during 2023 are the result of certain anomalies noted in inspections, which were performed to maintain the integrity of the remedial actions in accordance with the LTOM Plan requirements. 4.1 Smelter Road Gate In 2023, the security gate approximately 1000 feet northeast of the Tooele Gun Club entrance (see photographs in Appendix D) was again severely damaged due to an isolated incident of vehicular vandalism, but was promptly repaired/replaced. Access through this gate at the end of the Tooele County public right-of-way is provided to Kennecott, UDWR, and public utilities, but the gate prohibits access to general public vehicle traffic along the road through the PCCA to the Kennecott property. Prior to the security gate, there was a longstanding problem of the public transporting furniture/appliances, household garbage, and other trash or construction debris into the area south of the slag pile and illegally dumping these items into ravines along the road. As a result of the security gate, no illegal dumping of trash or debris in this area was noted in 2023. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 5 February 2024 4.2 Fence Maintenance In 2023, Atlantic Richfield elected to perform additional maintenance/repair of fencing along the northern, eastern, and portions of the southern fence where the fence was damaged or had loose strands (See Figure 4.1). In May-June 2023, Atlantic Richfield installed an additional 8-foot chain-link fence and signage along the more accessible access points of the slag pile area to further deter public access to the slag pile (See Figure 4.2 and photographs in Appendix D). 4.3 UDWR 2023 Maintenance Activities The UDWR sprayed for noxious weeds over the site. UDWR also mowed a firebreak near public roads and residential subdivision areas, primarily along the western boundary of the PCCA. In May 2023, UDWR completed installation of a boundary chain link fence along the north boundary of the Carr Fork Subdivision (see Figure 4.1). 4.4 Soil Sampling During the 2023 Inspections, Atlantic Richfield noted areas where surface soil along the TVRR grade within the PCCA appeared discolored and/or had sparse/barren vegetation. Following a discussion and EPA’s concurrence in September 2023, Atlantic Richfield performed XRF soil sampling in October 2023 along the portion of the TVRR within the PCCA for metals (lead and arsenic). A soil sample was collected approximately every 100 ft along the centerline of the rail grade and at certain additional locations based on observations in the field. Soil samples were analyzed using an XRF and compared to site action levels (See Figure 5.1-5.4). For quality assurance, 10% of the field samples were submitted to Pace Analytical Laboratory for verification analysis (See Appendix F). Maintenance activity will be performed in 2024 for locations that exceeded site action levels, consistent with the Site LTOM Plan and previous remedial actions. 4.5 Atlantic Richfield 2023 Maintenance Activities Maintenance activities implemented in 2023 were based on recommendations included in the 2022 I&M Report (ARC, March 2023) . In November-December 2023, Atlantic Richfield completed cover soil repair at various locations as shown on Figure 7.1-7.8, and photographs shown in Appendix D. These maintenance activities primarily addressed certain areas exhibiting erosion, discolored surface material, or sparse/barren vegetation, and that exceeded site action levels based on sampling performed in 2022. Maintenance included spreading/tilling lime, placement of 18-in soil cover, mulching, and reseeding of new cover and disturbed areas. Maintenance work was performed in accordance with the LTOM. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 6 February 2024 5.0 EVALUATION OF INSTITUTIONAL CONTROLS (ICs) ICs are non-engineered instruments such as administrative and legal controls created to minimize the potential for human exposure to contaminants and/or protect the integrity of the remedial actions. Over time following remedial action construction, the role of ICs becomes ever more important in helping to maintain the long-term protectiveness of the Site’s remedy. In accordance with Section 2.2.4 of the LTOM Plan, Atlantic Richfield conducted the 2023 ICs inspection for the PCCA, TVRR, and Lincoln Residential Area to evaluate if the established ICs continue to remain in effective in protecting human health and the environment. The following sections summarize the 2023 ICs evaluation. 5.1 Pine Canyon Conservation Area Institutional Controls The Conservation Easement established by Atlantic Richfield and UDWR was implemented to protect remedial features, restrict the type of use allowed on the property, and preserve, protect, and enhance native wildlife and the natural, scenic, open space, and educational values of the property. An environmental covenant (PCCA, June 2010) was also added to the property in 2010. The Conservation Easement prohibits, among other things, subdividing, building, drilling, mining, filling, excavating, removal of topsoil and other materials, dumping, and commercial, industrial, and agricultural use and all other uses inconsistent with the stated purpose and objectives of the Easement. The 2010 covenant prohibits motorized vehicles, bicycles, livestock grazing, swimming or wading, fires, dumping or leaving garbage in the PCCA. New groundwater wells, except for environmental groundwater monitoring, are also prohibited by both ICs. The ICs specifically allow authorized vehicle use for maintaining remedial features, monitoring, sampling, and other activities directly associated with Site I&M. In conjunction, these ICs effectively restrict public use of the PCCA to non-invasive hiking, horseback riding, wildlife observation, and hunting. UDWR also uses the PCCA as an educational area for hunter safety training (e.g., staging Chukar hunts during the year). These ICs continue to remain effective in protecting human health and the environment while allowing certain public use opportunities. 5.2 Tooele Valley Railroad Institutional Controls Environmental covenants have been recorded on each of the affected properties where remedial actions took place along the TVRR corridor. In 2009, an environmental covenant (TVRR, June 2009) was placed on approximately 1.87 acres of the larger TVRR grade area to provide long-term controls over the former Trestle Area, and in 2010 an environmental covenant (TVRR, May 2010) was also added to an area of the Zions Farm property where approximately 3,000 feet of waste was capped in place along the TVRR grade. Both covenants prohibit actions that would disturb the capped areas. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 7 February 2024 Portions of the TVRR corridor are owned by Tooele City and other portions are owned by private entities. Monitoring of the TVRR ICs includes inspecting the site for any damage to remedial improvements and working with Tooele County, Tooele City, and private property owners to educate them on restricted activities. To date, the ICs are working as intended and remain effective in protecting the capped areas as no intrusive activity was found during the 2023 annual inspection or in previous inspections. In accordance with Section 2.2.4 of the LTOM Plan, and in conjunction with EPA and UDEQ, Atlantic Richfield continues to notify private property owners to ensure they are aware of the ICs on their property and limitations on land use. 5.3 Lincoln Residential Area Institutional Controls ICs in the Lincoln Residential Area (i.e., Pine Canyon Township) consist of the Developer Guidelines/Pine Canyon Environmental Overlay Zone and a Controlled Groundwater Area (CGA) (See Section 5.4). The Tooele County Planning and Zoning Department (TCPZ), in consultation with the Tooele County Health Department (TCHD), administers the Developer Guidelines for properties within the Pine Canyon Environmental Overlay Zone. The Developer Guidelines are codified in Chapter 29 of the Tooele County Code. For properties within the Overlay Zone, a review of the environmental condition and possible remedial action is required as part of the development or building construction approval process. Applicants anticipating development within the Lincoln Residential Area must first meet with and provide proposed development plans to the TCPZ to determine if the property to be developed or otherwise improved is subject to the requirements of the Overlay Zone. If TCPZ determines the development or other improvements are within the Overlay Zone, TCPZ will refer the applicant to the TCHD, which will review previous sampling data and other information on environmental conditions associated with the subject property, and then determine if remedial action is warranted. The TCHD also maintains a website with educational information on lead exposure and prevention (https://tooelehealth.org/preventing-lead-poisioning/). In addition, the TCHD monitors groundwater development in the Lincoln Residential Area, restricting private well installation in areas that may have elevated naturally occurring arsenic concentrations (as described further in Section 5.4 below). The TCPZ and TCHD continue to effectively administer the Developer Guidelines/Pine Canyon Environmental Overlay Zone ICs. Atlantic Richfield has verified that Ordinance Chapter 29 of the County Code is still in effect and serving its intended purpose. The Developer Guidelines are available at the Tooele County Planners office and posted on the TCHD website. The Developer Guidelines are also readily accessible to the public on common search engines. The TCHD and TCPZ continue to educate and clarify the intent of the ICs for the public. Atlantic 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 8 February 2024 Richfield also independently monitors the area for new development in the Overlay Zone to confirm that the Guidelines are being followed and contacts stakeholder agencies as necessary if any concerns or issues arise. Atlantic Richfield continues to respond to TCHD’s requests to clarify site-specific information when developers contact them during their project planning. 5.4 Groundwater Institutional Controls The LTOM Plan (Appendix G) outlines a CGA with three distinct groundwater zones, each with varying levels of restrictions. The CGA was created to prevent extraction of groundwater with naturally elevated arsenic concentrations in the area. Within CGA Zone 1, installation of wells other than for monitoring or other environmental purposes is prohibited by the conservation easement and environmental covenant for the PCCA. Appendix G to the LTO&M Plan states that wells drawing water strictly for environmental monitoring purposes may be drilled within CGA Zone 2, but private and public (municipal) wells installed for the purpose of providing culinary water will not be permitted within CGA Zone 2. TCHD, Regulation #5: Individual Water, prohibits Individual Water Systems, and State regulations (UAC R655-4-9.2.1 and UAC R655-4-1.1) are intended to prohibit municipal wells in Zone 2. Within CGA Zone 3, a.k.a. the Advisory Zone, Appendix G to the LTO&M Plan states that entities drilling a well are to be made aware that some wells in the vicinity have had measurable concentrations of arsenic, and Individual Water Systems (a.k.a. private wells) must be permitted and inspected according to TCHD Regulation #5: Individual Water Systems. When a new well is drilled within Zone 3 the TCHD permits the use of the well after a water quality sample is collected and subsequent chemical analysis shows the water meets drinking water standards, including arsenic. The water quality sample data is subsequently provided by the TCHD to EPA and UDEQ. It appears that the CGA zones continue to be working as intended by the LTOM Plan. No known new wells were installed in Zone 1 or Zone 2 during 2023. Figure 6 indicates that the Zone 2 boundary remains a valid representation of areas with naturally elevated arsenic concentrations above the MCL where all groundwater wells should continue to be prohibited or restricted. The TCHD provided no groundwater data in Zone 3 for 2023. However, all data previously provided by TCHD to date indicate arsenic concentrations are below the arsenic MCL within the Zone 3 wells. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 9 February 2024 6.0 CONCLUSION / RECOMMENDATIONS Overall, the IS&R Site remains in good condition, as constructed remedial features and ICs that have been put in place continue to be effective and serve their intended purpose. This section summarizes the 2023 I&M conclusions and provides recommendations for certain maintenance activities in 2024 based on the identified findings. Additional Site/Agency correspondence relevant to the 2023 I&M activities is included in Appendix E. 6.1 PCCA Conclusion Overall, the PCCA remedial action features remain in place and are functioning as intended. Soil cover maintenance was completed in 2023 to address sampled bare areas with exceedances of arsenic and/or lead action levels. This maintenance work will continue to preserve the integrity of the remedy. The evaluation of ICs for the PCCA indicates that the Conservation Easement and the environment covenant continue to remain effective in protecting remedial construction, protecting human health and the environment, and in promoting the long-term objective of creating an attractive open space for wildlife. As part of their oversite work at the PCCA, in 2023, UDWR sprayed for noxious weeds, repaired boundary fence, and mowed fire breaks near public roads and residential subdivision areas, generally along the western boundary of the PCCA. Recommendations for 2024 Maintenance Activities • UDWR and Atlantic Richfield will continue to monitor for any vehicular and cycling trespass and other unauthorized site access, and UDWR will enforce the PCCA use restrictions via informational signage and reporting to local law enforcement, as necessary. • UDWR (as previously discussed with EPA, UDEQ and Atlantic Richfield) will continue to mow a wide fire break and implement other fire break measures around the Carr Fork and Conservo Subdivisions early in the season before grasses dry out, typically prior to June 15th, 2024. • Atlantic Richfield will continue coordination with the UDWR to repair/reconstruct damaged site fencing. • In 2024 Atlantic Richfield will address areas along the TVRR grade within the PCCA where 2023 XRF sampling results were above Site action levels. Consistent with the LTOM Plan and previous remedial and maintenance actions, these areas will be addressed via placement of cover soil, repair/installation of stormwater run on and drainage controls to reduce erosion, and revegetation of the cover soil and borrow areas. This 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 10 February 2024 maintenance work will involve the development of borrow areas within the PCCA, near the TVRR grade, to facilitate efficient implementation of the work and to minimize truck traffic and disturbance of other vegetated areas within the Site to the extent practicable. These maintenance activities will be reported in the 2024 I&M Report. 6.2 Tooele Valley Railroad Conclusion The TVRR Trestle Area and the TVRR Zions Farm Area are in good condition and have not been disturbed. Both environmental covenants remain in place on the affected parcels. Recommendation • In conjunction with EPA and UDEQ, in 2024 Atlantic Richfield will notify the current owners of these TVRR parcels to ensure that the owners are aware of the environmental covenants on their property and the land use limitations associated therewith (See Appendix E). 6.3 Lincoln Residential Area Conclusion The Developer Guidelines appear to be functioning and implemented as intended. Atlantic Richfield responds to TCHD requests as needed to clarify site-specific information as developers contact them during project planning. Recommendations • Per Section 2.1.4 of the LTOM Plan, TCHD, TCZD should continue to monitor development in the Lincoln Residential Area, facilitate proper implementation of Developer Guidelines and educate property owners on their application when agricultural land is changed to residential use, and perform other duties as outlined in the LTOM Plan. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 11 February 2024 6.4 Controlled Groundwater Area Conclusion The IS&R/Carr Fork 2023 Annual Groundwater Sampling Report (ARC, January 2024) provides conclusions and additional details about the 2023 groundwater monitoring event. It appears that the CGA zones continue to be working as intended by the LTOM Plan. No new wells were installed in Zone 1 or Zone 2 during 2023. Figure 6 indicates that the Zone 2 boundary remains a valid representation of areas with naturally elevated arsenic concentrations above the MCL where all groundwater wells should continue to be prohibited or restricted. All data provided by TCHD to date indicate arsenic concentrations are below the arsenic MCL within the Zone 3 wells Recommendations • As noted in prior annual reports, a potential gap in CGA coverage may exist where a public water supply well could be proposed, permitted, and drilled in Zone 2. Atlantic Richfield therefore believes that a formal CGA or similar regulatory designation should be set up by the Utah Division of Water Rights and/or Toole County to be consistent with CGA Zone 2 restrictions. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site 12 February 2024 7.0 REFERENCES (ARC, April 1994, as most recently amended in 2011). Conservation Easement between Atlantic Richfield Company and Utah Division of Wildlife Resources. Atlantic Richfield Company. (ARC, January 2022). International Smelting and Refining Site Long Term Operation and Maintenance Plan. Atlantic Richfield Company. (ARC, March 2023). IS&R 2022 Annual Inspection and Maintenance Report. Atlantic Richfield Company. (ARC, January 2024). IS&R LTO&M Groundwater Sampling Report 2023 Annual Sampling. Atlantic Richfield Company. (CD, 2016). United States of America v. Atlantic Richfield Company. Consent Decree CAN 2:16CV982DBP. United States Environmental Protection Agency. (EPA, September 2007) International Smelting and Refining Superfund Site EPA CERCLIS NO. UTD0903120921, Tooele, Utah, Record of Decision. United States Environmental Protection Agency. (PCCA, June 2010, as most recently amended in 2011). Pine Canyon Conservation Area Environmental Covenant between Atlantic Richfield Company, Utah Department of Environmental Quality, and United States Environmental Protection Agency. (TVRR, October 2009). Tooele Valley Railroad Environmental Covenant between Tooele City, Atlantic Richfield Company, Utah Department of Environmental Quality, and United States Environmental Protection Agency. (TVRR, May 2010). Tooele Valley Railroad Environmental Covenant between Zion Farm L.C. and Atlantic Richfield Company. Atlantic Richfield Company. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site FIGURES � ! i "- ! 1 � 2 cl! t � .. � Q Q � A S I N IN Desert labon.ei \�ldht. ell,Je GREAT SALT iAKE DESERT UTAH Great Sall LDi!e Logan 0 Cache Nabcn i4 r '&SI 0 Ogden GR EAT SALT LAK E DE SERT " , at h Ndt�)n� Fuest Utah Test ;rid Tranmg RangEt-Soulh Dug'lla,· Pro,,ng Grcund St George 0 F1'5hlde Nalcna Foreli Orem 0 ll111la Pro'� ��"�r�!1 Llanb La".ei Nabona Forest UTAH U,nt.n and Ouray Reservabon Grilld Slarcase­E&e.:Aonte Nat'I Ila, Glen Cillyon Nabond RecreallOn Ara a Vermd,co Chffs NII A'5hley Nanon� Fcrest Kab.-t> NuboniA C O L O R A D 0 IS&R 2023 ANNUAL INSPECTION REPORT ••"'ornoaaur c, Nabonal i1onumanl Grand Junction 0 C ur.nd M Nabon Fae" lln�car:;g,,.n }' • Fc.-;ut Ute r.tountan Reservabon PLA TEAU SA THESE PLANS AND SPECIFICATIONS ARE THE PROPER TY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRJNGS, UTAH 84045AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION ,,.. ... r General Noles ""'I \.. r PINE CANYON CONSERVATION AREA SITE t SCALE IN FEET 0 2,000 4,000 ATLANTIC RICHFIELD � � "�ANDERSON --ENGINEERING COMPANY INC. r IS&R 2023 ANNUAL INSPECTION REPORT SITE LOCATION TOOLE COUNTY, UT DRAWN BY: KS ENGINEER: RA APPROVED: RA ..... CARR FORK 23-NOV•2022 1 1"=4,000' "I General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 2 4 I S R 2 0 2 2 T h i r d F i v e Y e a r R e v i e w R e p o r t \ E P A S i t e B o u n d a r y \ I S & R S i t e B o u n d a r y \ I S & R S i t e B o u n d a r y . a p r x 1.2 1"=2,000' 25-AUG-2022 IS&R RVA RVA EKB TOOELE, UT IS&R ATLANTIC RICHFIELD COMPANY 0 950 1,900 SCALE IN FEET Pine Canyon Conservation Easement Area, (Owned by Atlantic Richfield) TVRR (Removal) TVRR (Environmental Covenant for Waste Capped in Place-Zions Ranch) TVRR (Environmental Covenant for Waste Capped in Place-Tooele City) TVRR (No Action Required Per RI Sampling) Tooele Valley Railroad Right-of-Way Pine Canyon Environmental Overlay Zone Pine Canyon Environmental Overlay Zone (Meets Residential Action Levels) Pine Canyon Environmental Overlay (Meets Recreational Action Levels) TOOELE SITE BOUNDARY  /( KENNECOTTPROPERTY 3,1(&$1<21 /$1'),// 6(77/,1* 321' 6(77/,1* 321' :$67(,62/$7,21&(// &$55)25. 7$,/,1*6 ,6 57$,/,1*6 ,521$5($ 3$5.,1*/27 /$1'),// &$55)25. /$1'),//6 ,55,*$7,21',7&+ (/7217811(/ :$67(52&. 6/$* 63 5 , 1 *  & $ 1 < 2 1 $1$&21'$5'                                                                    CONSERVATION AREA BOUNDARY 6" CAPPED AREA 12" CAPPED AREA 18" CAPPED AREA 24" CAPPED AREA BORROW AREA 3:1 SLOPE REGRADING CONSTRUCTED RIPRAP CHANNELS CONSTRUCTED STORM WATER DIVERSION BERMS CONSTRUCTED EARTHEN CHANNEL BACKFILLED EROSION RILL EXISTING NATURAL CHANNEL SAFETY BERM WITH WARNING SIGNS APPROXIMATE ELTON TUNNEL ALIGNMENT PHOTO LOCATION ,6 53 $118$/ ,163(&7,215(3257 6,7(5(&25'3+272 /2&$7,216 722(/(87$+   2.12FW ,6 52 0 $7/$17,& 5,&+),(/' 6'$ 56+ 0%0 7+(6(3/$16$1'63(&,),&$7,216$5(7+(3523(57<2)$1'(5621(1*,1((5,1*&203$1<,1&:(676287+ 6$/7/$.(&,7<87$+$1'6+$//127%(&23,('5('8&('255(352'8&(':,7+2877+(,5:5,77(13(50,66,21 1+,//&5(675'6$5$72*$635,1*687   10 11 15 14 22 22 3 PRIVATE OWNERSHIP -cdNSEROXli& - AREA BOUNDARY AfflonERSAIP WA9 \ " WA10 \ WA9 ;f I ,. ( IS&R TAILINGS CONS!RVATION AREA PRIVATE OWNERSHIP )) ( ( ,' \I I \ \\ I \ 12 7 13 18 ,, � WA1 l ( L '--r , \ \ ) WAS 24 19 25 30 ,: ( ;' I_._ '> \ ' )_' / '--r· e: "� l r 'r THESE PLANS AND SPECIF/CATIONS ARE THE PROPERTY OF ATLANTIC RICHFIELD COMPANY, 317 ANACONDA ROAD, BUTTE, MT, 59701 AND SHALL NOT BE COPIED, REDUCED, OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION. CONSERVATION -■■-AREA BOUNDARY WORK AREA BOUNDARY ---CAPPED AREAS WA12 GROUNDWATER ATLANTIC RICHFIELD COMPANY ,__ ANDERSON ENGINEERING COMPANY, INC. 977 w,.t 2100 South SALT LAKE CITY, UTAH 84119 (801) 972-6222 ,,, LONG TERM OPERATION & MAINTENANCE PLAN IS&R NPL SITE CONSERVATION AREA RI WORK AREAS TOOELE, UTAH 97-069 15-JAN-08 2.2NO SCALE ) ATLANTIC RICHFIELD CO.PROPERTY BOUNDARY ATLANTIC RICHFIELD CO.PROPERTY BOUNDARY ATLANTIC RICHFIELD CO.PROPERTY BOUNDARY GW-4 GW-3A GW-1GW-7 GW-8 GW-11 GW-1BR IS&R LTOM PLAN MONITORING WELL LOCATIONS 1:1000 THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UT 84045 AND SHALL NOT BE COPIED, REDUCED, OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION. NOV 2022 IS&R 20223ANNUAL INSPECTION REPORT WELL LOCATIONS TOOELE COUNTY, UTAH ATLANTIC RICHFIELD IS&R KC KC KC 3 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 1 9 2 0 2 2 F e n c e M a i n t e n a n c e \ A s B u i l t M a p \ G I S \ 2 2 0 6 1 6 A S B u i l t P o i n t M a p . a p r x 4.114-FEB-2024 IS&R O&M RVA RK RK TOOELE, UT 2023 FENCE MAINTENANCE IS&R 2023 ANNUAL INSPECTION REPORT ATLANTIC RICHFIELD 0 1,000 2,000 SCALE IN FEET VICINITY MAP (NOT TO SCALE) ! SITE LOCATION PCCA/CARR FORK UDWR INSTALLED CHAINLINK FENCE 2023 FENCE MAINTENANCE 1"= 2,000' IN 2023 ATLANTIC RICHFIELD REPAIRED 21 FENCE BREAK LOCATIONS ALONG THE SHOWN ALIGNMENT WHERE THE FENCE WAS LOOSE, CUT, OR DAMAGED. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 2 5 S l a g P i l e S e c u r i t y F e n c e E x p a n s i o n \ G I S \ 2 2 1 0 1 9 P r o p o s e d F e n c e A r r a n g e m e n t . a p r x 4.2 1"=250' 22-AUG-2023 IS&R SLAG PILE SECURITY RA RK RK IS&R 2023 ANNUAL INSPECTION REPORT 2023 SLAG PILE FENCE TOOELE, UTAH ATLANTIC RICHFIELD 0 125 250 SCALE IN FEET EXISTING CHAIN LINK FENCE EXISTING GATE EXISTING BARBED WIRE FENCE NEW 8 FT CHAIN LINK FENCE VICINITY MAP (NOT TO SCALE) TOOELE & EXISTING THREE STRAND BARBED WIRE FENCE & EXISTING FOUR STRAND BARBED WIRE FENCE &TIE INTO EXISTING FENCE & EXISTING 8-FOOT CHAIN LINK FENCE & NEW 8-FOOT CHAIN LINK FENCE (627 FEET) & NEW 8-FOOT CHAIN LINK FENCE (2213 FEET) & EXISTING GATE & SITE LOCATION & GATE #3 &GATE #2 & GATE #1 !!!!!!!!       !    !    !    !   !      !    !       !          !             ! !                   0/8,' */8 *8 /, 2!+*/8 -818,-+,-38+8 *-/+*8*"-*8+(, *78*8 8*+-08%&-/08-+ 8/ - 0+ 8/,-$*/8428  *8 / %&8*+088+,8-48+-8 -,-+485 0+4182-8 6.#00*8,-)// +*8    # # # " ##!!# # "## #!! # ## "# # #!!#                     (4!868 8*$8 "!'8 (8 %&'#18 '8 ! ,2('8)0(378  #- 8  8 IS&R 2023 ANNUAL INSPECTION REPORT TVRR CHARACTERIZATION TOOELE, UTAH 5.1 ,.. "I r General Notes " M-037+85L 648 M-046+25L U-004 U-016 +3 L 0 XRF As< 675 ppm M-038 235 M-046+55L U-005 U -016 +75R 0 XRF As 676 -900 ppm M-038+58L M-047 U-006 U-017 •XRF As > 900 ppm M-039 M-048 U-007 273 U-017+DL M-040 M-048+0R U-008 613 U-017+10L M-041 M-048+4L U-009 488 U-018 M-04l+OL M-049 U-010 687 U-018+10L M-042 M-050 U-011 644 U-018+10R M-042+16L M-051 U-012 603 U-019 M-042+63L M-051+60L U-013 433 U-020 M-043 M-052 U-013+70L 576 U-02o+5R M-044 M-053 U-0 14 331 U-021 M-044+55 L U-001 U-015 585 t SCALE IN FEET \.. 0 150 300 � r � ATLANTIC RICHFIELD "-� � � � """"ANDERSON t � - -ENGINEERING COMPANY INC. � � " r � � i! ol' ol' � "- DRAWN BY: BF, TP ENGINEER: APPROVED: � .... TVRR SURVEY 12-OCT-2-023 5.2 1"=300' .. THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRJNGS, UTAH B4045AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRJTTEN PERMISSION IS&R 2023 ANNUAL INSPECTION REPORT TVRR CHARACTERIZATION TOOELE, UTAH                                                                                                0/7,' */7 *7 /, 1!+*/7 -707,-+,-27+7 *-/+*7*"-*7+(, *67*7  7*+-07%&-/07 -+ 7 / - 0+ 7/,-$*/7317  *7/ %&7*+077 +,7 -37+-7-,-+374 0+307 1-7 5.#00*7,-)// +*7                                         " -3.3 3&3 " 3 # 3 !"+ 3 # 3 23 ',#"3$*#,/3   0 3 13IS&R 2023 ANNUAL INSPECTION REPORT TVRR CHARACTERIZATION TOOELE, UTAH 5.3 M-037+85L M-046+25 L U-004 U-016+3 L M-038 M-046+55 L U-005 U-016+75R M-038+58L M-047 U-006 U-017 M-039 M-048 U-007 U-017+0L M-04 0 M-048+oR U-008 U-017+10L M-041 M-048+4L U-009 U-018 M-041+DL M-04 9 U-010 U-018+10L M-042 M-050 U-011 U-018+10R M-042+16L M-051 U-012 U-019 M-042+63 L M-051+60L U-013 U-020 M-043 M-052 U-013+70l U-02o+5R M-04 4 M-053 U-014 U-021 M-044+55L U-001 U-015 THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRJNGS, UTAH B4045AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRJTTEN PERMISSION 0 0 • r General Notes XRF Pb <6,000 ppm XRF Pb 6,000-8,000 ppm XRF Pb > 8,000 ppm SCALE IN FEET 0 150 ATLANTIC RICHFIELD 300 """"ANDERSON - -ENGINEERING COMPANY INC. DRAWN BY: BF. TP ENGINEER: RA APPROVED: RA � .... -· TVRR SURVEY ·-5.412-OCT-2023 k" 1w=300' IS&R 2023 ANNUAL INSPECTION REPORT TVRR CHARACTERIZATION TOOELE, UTAH ATLANTIC RICHFIELD CO.PROPERTY BOUNDARY ATLANTIC RICHFIELD CO.PROPERTY BOUNDARY GW-3A (Dry) GW-7 57.6 ppb GW-11 (Dry) 100 p p b 50 pp b 25 pp b 10 p p b 5 p p b ?? ?? ?? ?? ? ? 1 p p b ? ? ?? ? ? ? ? ? GW-1 147 ppb GW-4 <1 ppb GW-8 22.9 ppb IS&R LTOM PLAN MONITORING WELL LOCATIONS (WITH ARSENIC CONCENTRATION IN PPB) ZONE 1 ZONE 2 ZONE 3 IS&R SITE BOUNDARY Note: GW-3A and GW-11 were dry in 2023 so the contour points were based on previous consistent sample data 1:1000 THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UT 84045 AND SHALL NOT BE COPIED, REDUCED, OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION. 15-Jan-2024 IS&R 2023 ANNUAL INSPECTION REPORT 2023 GROUNDWATER ARSENIC CONTOURS TOOELE COUNTY, UTAH ATLANTIC RICHFIELD IS&R KC KC KC 6 ANDERSON ENGINEERING COMPANY INC. ANDERSON ENGINEERING COMPANY INC General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 2 3 2 0 2 2 S o i l S a m p l i n g \ W o r k P l a n \ O v e r v i e w o f L o c a t i o n s & A c c e s s R D \ O v e r v i e w o f L o c a t i o n s & A c c e s s R D . a p r x 7.1 1"=1,500' 13-DEC-2023 IS&R RA RA RK TOOELE, UT SITE OVERVIEW IS&R 2023 MAINTENANCE ATLANTIC RICHFIELD 0 750 1,500 SCALE IN FEET PCCA/CARR FORK BOUNDARY GATES BORROW AREA STAGING AREA MAINTENANCE LOCATIONS PERMANENT ACCESS ROADS TEMPORARY ACCESS ROADS & Borrow Area & Staging Area 27 25 18.2 18.1 11 6.4 6.3 14.2 14.1 12.1 12.2 12.312.4 22.3 22.2 22.1 5.25.3 MAINTENANCE INCLUDED AN 18-INCH SOIL COVER, OVER AN APPLIED/INCORPORATED LIME SURFACE, AS NECESSARY, AND SEEDED WITH A MULCH COVER. ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.2 1"=250' 13-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT WORK AREAS 5 AND 22 IS&R 2023 MAINTENANCE AS BUILT ATLANTIC RICHFIELD 0 125 250 SCALE IN FEET VICINITY MAP (NOT TO SCALE) PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED 18" PLACED COVER 22.1 22.2 22.3 5.25.3 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.3 1"=150' 12-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT WORK AREAS 12 AND 14 IS&R 2023 MAINTENANCE AS-BUILT ATLANTIC RICHFIELD 0 75 150 SCALE IN FEET PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED 18" PLACED COVER VICINITY MAP (NOT TO SCALE) 12.1 12.212.3 12.4 14.1 14.2 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.4 1"=250' 13-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT WORKS AREA 6 IS&R 2023 MAINTENANCE AS-BUILT ATLANTIC RICHFIELD 0 125 250 SCALE IN FEET PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED 18" PLACED COVER VICINITY MAP (NOT TO SCALE) 6.4 6.3 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.5 1"=50' 12-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT WORK AREA 11 IS&R 2023 MAINTENANCE AS-BUILT ATLANTIC RICHFIELD 0 25 50 SCALE IN FEET PCCA/CARR FORK BOUNDARY 18" PLACED COVER FERTILIZER, SEED, MULCH PLACED VICINITY MAP (NOT TO SCALE) 11 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.6 1"=100' 13-DEC-2023 IS&R RVA RVA RK IS&R 2023 MAINTENANCE AS-BUILT AS-BUILT WORK AREA 18 TOOELE, UT ATLANTIC RICHFIELD 0 50 100 SCALE IN FEET PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED 18" PLACED COVER VICINITY MAP (NOT TO SCALE) 18.1 18.2 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.7 1"=150' 13-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT WORK AREAS 25 AND 27 IS&R 2023 MAINTENANCE AS-BUILT ATLANTIC RICHFIELD 0 75 150 SCALE IN FEET PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED 18" PLACED COVER VICINITY MAP (NOT TO SCALE) 25 27 ANDERSON ENGINEERING COMPANY INC. General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 3 0 2 0 2 3 L T O M M a i n t e n a n c e \ A s - B u i l t \ G I S M A P S \ G I S M A P S \ G I S M A P S . a p r x 7.8 1"=100' 12-DEC-2023 IS&R RVA RVA RK TOOELE, UT AS-BUILT BORROW AREA AND STAGING AREA IS&R 2023 MAINTENANCE AS-BUILT ATLANTIC RICHFIELD 0 50 100 SCALE IN FEET PCCA/CARR FORK BOUNDARY FERTILIZER, SEED, MULCH PLACED VICINITY MAP (NOT TO SCALE) BORROW AREA STAGING AREA 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX A: Inspection Forms Page 1 of 13 Description Details: Conservation Area Trash/Debris From the road check for garbage and other debris at the bottom of the slag pile and note any large items (cars, boats, etc.) that may have been stolen and abandoned. Evaluate and address concerns. Box Culvert Check the box culvert debris or restricted flow issues. Check for structural deficiencies. Evaluate and address concerns as needed. Safety Berm Check the integrity of the 5' Safety Berm along edge of the slag pile. Evaluate and address concerns as needed. Information Signs Check restricted entry and information signs for presence and condition. Evaluate and address concerns as needed. Regraded/ Backfilled Areas Check regraded areas for signs of erosion, settlement and degradation of cap material. (Backfill against the former smelter foundations, for purposes of the annual and five-year review, is considered a regraded area.) Evaluate and address concerns as needed. Borrow Areas Check borrow areas for vegetation cover (density and specie variety) and erosion. Evaluate and address concerns as needed. Backfilled Erosion Rills Check backfilled erosion rills for damage; ensure constructed diversion berms are keeping the rill from re-occurring. Evaluate and address concerns as needed. Cap Check capped areas for sustainability (vegetative cover, etc.), bio-intrusion or human caused damage. Evaluate and address findings as needed. Channels Check channels and channel revetment for erosion caused damage, damage by other natural causes or by human related activity. Evaluate and address concerns as needed. Diversion Berms Check constructed diversion berms to ensure adequacy; check berm for overtopping, erosion or breach. Evaluate and address concerns as needed. Fence Check all Conservation Area fencing including fencing along roads, gun club, etc. for damage or deficiencies. Vegetation Check work areas of stressed vegetation. If encountered check the area for evidence of waste material. If waste is observed take appropriate action. Erosion Check work area with special consideration of reclaimed areas for evidence of erosion that has caused or may cause exposure to waste materials. Page 2 of 13 Work Area 1 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA1-1 Fence Annually Damage/Deficiencies Overall good conditions, minor damaged, cut, or loose locations.UDWR Notified, Atlantic Richfield performed fence maintenance in WA-1 WA1-2 Vegetation Annually Distressed areas/ Waste material Overall good vegetation cover No action taken WA1-3 Erosion Annually Exposed areas No significant erosion observed No action taken WA1-4 Information Signs Annually Presence/Condition Observed signs in good condition No action taken Signature: Other Actions/Comments: Page 3 of 13 Work Area 2 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA2-1 Fence Annually Damage/Deficiencies Good.Additional 8 ft. high chain link added. WA2-2 Vegetation Annually Distressed areas Good No action taken WA2-3 Erosion Annually Exposed areas Good No action taken WA2-4 Information Signs Annually Presence/Condition Good No action taken WA2-5 Trash/Debris Annually Trash/Debris Good No action taken WA2-6 18" Cap Main Area Annually Sustainability/ Damage Good No action taken WA2-7 18" Cap North of Paved Road West Area Annually Sustainability/ Damage Good No action taken WA2-8 18" Cap North of Paved Road East Area Annually Sustainability/ Damage Good No action taken WA2-9 18" Cap North of WA7 Annually Sustainability/ Damage Good No action taken WA2-10 18" Cap South of Paved Road Annually Sustainability/ Damage Good No action taken WA2-11 Safety Berm Annually Exposed areas/Erosion Good No action taken Signature: Other Actions/Comments: Page 4 of 13 Work Area 3N (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA3N-1 Fence Annually Damage/Deficiencies Overall good conditions, minor damaged, cut, or loose locations.UDWR Notified, Atlantic Richfield performed fence maintenance in WA3N WA3N-2 Vegetation Annually Distressed areas Good vegetative cover No action taken WA3N-3 Erosion Annually Exposed areas Good No action taken WA3N-4 Information Signs Annually Presence/Condition Good No action taken WA3N-5 12" Cap Main Annually Sustainability/ Damage Good No action taken WA3N-6 12" Cap East Annually Sustainability/ Damage Good No action taken WA3N-7 12" Cap Detention Basin Annually Sustainability/ Damage Bare Soil Noted Action taken. See comments WA3N-8 24" Cap West Carr Fork Landfill Annually Sustainability/ Damage Good No action taken WA3N-9 24" Cap East Carr Fork Landfill Annually Sustainability/ Damage Good with fair amount of vegetation No action taken WA3N-10 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-11 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-12 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-13 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-14 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-15 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-16 Diversion Berm Annually Erosion/Breach Good No action taken WA3N-17 Diversion Berm East of West CF Landfill Annually Erosion/Breach Good No action taken WA3N-18 Channel East of West CF Landfill Annually Erosion/Damage Good No action taken WA3N-19 Regraded/Backfilled Area - East (12" Cap) Annually Erosion/Settlement Good No action taken WA3N-20 Regraded/Backfilled Area - West (12" Cap) Annually Erosion/Settlement Good No action taken WA3N-21 Regraded/Backfilled Area - East of West CF Landfill (No Cap) Annually Erosion/Settlement Good No action taken WA3N-22 12" Cap North of Dry Creek Annually Sustainability/ Damage Good No action taken Signature: Other Actions/Comments: Maintenance work performed at WA3N-7, and south of WA3N-8. Work completed by December 2023. Additional 18" Soil Cover Added, Mulched, and reseeded. Page 5 of 13 Work Area 3S (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA3S-1 Fence Annually Damage/Deficiencies Good No action taken WA3S-2 Vegetation Annually Distressed areas Good No action taken WA3S-3 Erosion Annually Exposed areas Good Action taken, see comments WA3S-4 Information Signs Annually Presence/Condition Good No action taken WA3S-5 12" Cap Main Area Annually Sustainability/ Damage Bare Soil Noted Action taken. See comments Signature: Other Actions/Comments: Maintenance work performed at WA3. Work completed by December 2023. Additional 18" Soil Cover Added, Mulched, and reseeded. Page 6 of 13 Work Area 4 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA4-1 Fence Annually Damage/Deficiencies Overall good conditions, minor damaged, cut, or loose locations.UDWR Notified, Atlantic Richfield performed fence maintenance in WA4 WA4-2 Vegetation Annually Distressed areas Good No action taken WA4-3 Erosion Annually Exposed areas Good No action taken WA4-4 Information Signs Annually Presence/Condition Good No action taken WA4-5 12" Cap East; South Bench Annually Sustainability/ Damage Good No action taken WA4-6 12" Cap East Annually Sustainability/ Damage Good No action taken WA4-7 12" Cap Surrounded by Regraded Area Annually Sustainability/ Damage Good No action taken WA4-8 Riprap Channel Annually Erosion/Damage Good No action taken WA4-9 Riprap Channel Annually Erosion/Damage Good No action taken WA4-10 Riprap Channel Annually Erosion/Damage Good No action taken WA4-11 Riprap Channel Annually Erosion/Damage Good No action taken WA4-12 Regraded/Backfilled Area East (No Cap) Annually Erosion/Settlement Good No action taken WA4-13 Regraded/Backfilled Area West (12" Cap) Annually Erosion/Settlement Good No action taken WA4-14 Box Culvert Annually Debris/Structural Deficiencies Good No action taken Signature: Other Actions/Comments: Page 7 of 13 Work Area 5 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA5-1 Fence Annually Damage/Deficiencies Overall good conditions, minor damaged, cut, or loose locations.UDWR Notified, Atlantic Richfield performed fence maintenance in WA5 WA5-2 Vegetation Annually Distressed areas Distressed and/or Bare Area along TVRR Grade.See Comments WA5-3 Erosion Annually Exposed areas Good No action taken WA5-4 Information Signs Annually Presence/Condition Good No action taken WA5-5 12" Cap East of Paved Road Annually Sustainability/ Damage Good No action taken WA5-6 Drainage Channel East Annually Erosion/Damage Good No action taken WA5-7 Drainage Channel West Annually Erosion/Damage Good No action taken WA5-8 Diversion Berm Annually Erosion/Breach Good No action taken WA5-9 12" Cap Along Rail Road Grade Annually Sustainability/ Damage Good No action taken Signature: Other Actions/Comments: TVRR Characterization of Bare Soils along on-site rail grade. Page 8 of 13 Work Area 6 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA6-1 Fence Annually Damage/Deficiencies Good No action taken WA6-2 Vegetation Annually Distressed areas Good No action taken WA6-3 Erosion Annually Exposed areas Good No action taken WA6-4 Information Signs Annually Presence/Condition Good No action taken WA6-5 12" Cap Parking Lot Landfill Annually Sustainability/ Damage Good No action taken WA6-6 12" Cap Iron Area Annually Sustainability/ Damage Good No action taken WA6-7 12" Cap West of Paved Road Annually Sustainability/ Damage Good No action taken WA6-8 24" Cap Pine Canyon Landfill Annually Sustainability/ Damage Good No action taken WA6-9 Diversion Berm West of Paved Road Annually Erosion/Breach Good No action taken WA6-10 Regraded Area West (No Cap)Annually Erosion/Settlement Good No action taken WA6-11 Regraded Area Center (No Cap)Annually Erosion/Settlement Good No action taken WA6-12 Regraded Area East (No Cap)Annually Erosion/Settlement Good No action taken WA6-13 Borrow Area North Annually Vegetation/Erosion Good No action taken WA6-14 Borrow Area Center Annually Vegetation/Erosion Good No action taken WA6-15 Borrow Area South Annually Vegetation/Erosion Good No action taken WA6-16 Borrow Area South of Gun Club Annually Vegetation/Erosion Good No action taken Signature: Other Actions/Comments: Page 9 of 13 Work Area 7 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA7-1 Fence Annually Damage/Deficiencies Good No action taken WA7-2 Vegetation Annually Distressed areas Good No action taken WA7-3 Erosion Annually Exposed areas Good No action taken WA7-4 Information Signs Annually Presence/Condition Good No action taken WA7-5 24" Cap Elton Tunnel Waste Rock Annually Sustainability/ Damage Good No action taken WA7-6 Rip Rap Channel at Pond Outlet Annually Erosion/Damage Good No action taken WA7-7 Regraded Area South of Pond (No Cap)Annually Erosion/Settlement Good No action taken Signature: Other Actions/Comments: Page 10 of 13 Work Area 8 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA8-1 Fence Annually Damage/Deficiencies Good No action taken WA8-2 Vegetation Annually Distressed areas Good No action taken WA8-3 Erosion Annually Exposed areas Erosion/Bare Areas Noted Action taken, See comments WA8-4 Information Signs Annually Presence/Condition Good No action taken WA8-5 12" Cap 3-Locations East of Access Road Annually Sustainability/ Damage Good No action taken WA8-6 12" Cap West of Tailings Dam Annually Sustainability/ Damage Good No action taken WA8-7 12" Cap East of Tailings Dam Annually Sustainability/ Damage Erosion/Bare Areas Noted Action taken, See comments WA8-8 12" Cap East of Tailings Dam, Thin Connection Strip Annually Sustainability/ Damage Good No action taken WA8-9 12" Cap West of Paved Road Annually Sustainability/ Damage Good No action taken WA8-10 12" Cap South Settling Pond Annually Sustainability/ Damage Good No action taken WA8-11 12" Cap North Settling Pond Annually Sustainability/ Damage Good No action taken WA8-12 6" Cap North Half of Tailings Dam and Flat Area North of Dam Annually Sustainability/ Damage Good No action taken WA8-13 6" Cap South Half of Tailings Dam Annually Sustainability/ Damage Good No action taken WA8-14 6" Cap East of Tailings Dam Annually Sustainability/ Damage Good No action taken WA8-15 Diversion Berm 6" Cap East of Tailings Dam Annually Sustainability/ Damage Good No action taken WA8-16 Diversion Berm Existing Berm Annually Erosion/Breach Good No action taken WA8-17 Drainage Channel Southwest Annually Erosion/Damage Good No action taken WA8-18 Drainage Channel Southeast Annually Erosion/Damage Good No action taken WA8-19 Channel West of Tailings Dam Annually Erosion/Damage Good No action taken WA8-20 Rip Rap Channel From Dry Creek Cutting Through Tailings Dam Annually Erosion/Damage Good No action taken WA8-21 Drainage Channel From Dry Creek Through Tailings Pond Annually Erosion/Damage Good No action taken WA8-22 Drainage Channel From Dry Creek West of Tailings Dam Annually Erosion/Damage Good No action taken WA8-23 Rip Dap Channel on Berm North End Annually Erosion/Damage Good No action taken WA8-24 Backfilled Erosion Rill Berm North End Annually Damage/Deficiencies Good No action taken WA8-23 Rip Dap Channel on Berm North End Annually Erosion/Damage Good No action taken WA8-25 Backfilled Erosion Rill Berm South End Annually Damage/Deficiencies Good No action taken WA8-26 Rip Dap Channel on Berm South End Annually Erosion/Damage Good No action taken Signature: Other Actions/Comments: Maintenance work performed at WA8. Work completed by December 2023. Additional 18" Soil Cover Added, Mulched, and reseeded. Page 11 of 13 Work Area 9 (See Figure 2.2) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA9-1 Fence Annually Damage/Deficiencies Overall good conditions, minor damaged, cut, or loose locations.UDWR Notified WA9-2 Vegetation Annually Distressed areas Good No action taken WA9-3 Erosion Annually Exposed areas Good No action taken WA9-4 Information Signs Annually Presence/Condition Good No action taken WA9-5 12" Cap 2-Locations West of Access Road Annually Sustainability/ Damage Erosion/Bare Areas Noted Action taken, See comments WA9-6 12" Cap West of Ericson Road Annually Sustainability/ Damage Erosion/Bare Areas Noted Action taken, See comments WA9-7 Drainage Channel West of Paved Road Annually Erosion/Damage Good No action taken WA9-8 Rip Rap Channel into Southwest Borrow Area Annually Erosion/Damage Good No action taken WA9-9 Borrow Area Southwest Annually Vegetation/Erosion Good Action taken. See comments WA9-10 Borrow Area Southeast Annually Vegetation/Erosion Good No action taken WA9-11 Borrow Area Northwest Annually Vegetation/Erosion Good No action taken Signature: Other Actions/Comments: Maintenance work performed at WA9-6, near intersection of Erikson RD and Blue Peak RD, WA9-5, and southwest of WA9-5. Work completed by December 2023. Additional 18" Soil Cover Added, Mulched, and reseeded. Page 12 of 13 Work Area 10 - Not Applicable, refer to Developer Guidelines Work Area 11 (See Figure 2-1) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: WA11-1 Fences Annually Damage/Deficiencies Not applicable - No fences n/a WA11-2 Vegetation Annually Distressed areas Good No action taken WA11-3 Erosion Annually Exposed areas Good No action taken WA11-4 Information Signs Annually Presence/Condition Not applicable - No signs n/a WA11-5 12" Cap Waste Isolation Cell Annually Sustainability/ Damage Good No action taken Signature: Work Area 12 - Not Applicable, refer to Groundwater Report Other Actions/Comments: Page 13 of 13 Description Details: Tooele Valley Railroad Erosion Trash/Debris Vegetation Tooele Valley Railroad Extension Section -- Trestle (Tooele City) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: TVRR-1 General Disturbance Annually Disturbance/Damage Good No action taken TVRR-2 Erosion Annually Exposed areas Good No action taken TVRR-3 Trash/Debris Annually Debris on cover Good No action taken TVRR-4 Vegetation Annually Noxious weeds Good; vegetation healthy around the riprap No action taken Signature: Tooele Valley Railroad Extension Section -- Waste Capped in Place (Private Stake Holders) Date:6/13/2023-6/19/2023 Inspector: J. BOND, R. JACKSON, R. ANDERSON Item Number Description Rate Inspected for:Condition Action Taken: TVRR-1 General Disturbance Annually Disturbance/Damage Good No action taken TVRR-2 Erosion Annually Exposed areas Good No action taken TVRR-3 Trash/Debris Annually Debris on cover Good No action taken TVRR-4 Vegetation Annually Noxious weeds Good No action taken Signature: Other Actions/Comments: Other Actions/Comments: General Disturbance Check for evidence of disturbance, such as damage from vehicles, digging, cover removal, etc. Check for evidence of erosion of the cover material that has caused or may cause exposure to waste materials. Check for evidence of trash or debris dumping on the cover. Check for evidence of noxious weeds. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX B: Site Photographs IS&R Photograph Log 01 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 11:04 Southwest SOIL COVERED AREA. THERE IS SPARSE VEGETATION ALONG SOME PARTS OF THE PERIMETER SOUTHEASTERN PART OF WA8-9. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 02 Jaden Bond 14 JUN 2023 10:38 Northeast SOIL COVERED AREA. THERE ISSPARSE VEGETATION ALONG SOME PARTS OF THE PERIMETERSOUTHEASTERN PART OF WA8-9. 03 Jaden Bond 14 JUN 2023 11:00 Southwest TVRR within PCCA IS&R Photograph Log 04 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 10:54 Northeast A CONSTRUCTED EARTHEN CHANNEL, WA5-6 Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 05 Jaden Bond 14 JUN 2023 12:16 Northwest VIEW OF WA4-5 COVER AREA. VEGETATION IS OKAY 06 Jaden Bond 14 JUN 2023 12:12 West VIEW OF WA4-5 COVER AREA. IS&R Photograph Log 07 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 11:59 West VIEW OF THE COVER AREA Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 08 Jaden Bond 14 JUN 2023 11:39 Southwest VIEW OF WA4-8 NO SIGNS OFEROSION 09 Jaden Bond 14 JUN 2023 11:36 Northwest VIEW OF WA4-9 THE RIP RAP CHANNEL WITH GOOD VEGETATION IS&R Photograph Log 10 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 11:47 Southwest VIEW OF WA4-13 AND WA 4-6. THE COVER AREA AND 3:1 SLOPE REGRADING AREA. RIP RAP CHANNEL IN GOOD CONDITION. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 11 Jaden Bond 14 JUN 2023 11:52 West VIEW OF WA4-8, WA4-13, AND WA4-16. THE COVER AREA AND 3:1 SLOPE REGRADING AREA. RIP RAP OPEN CHANNEL IN GOOD CONDITION 12 Jaden Bond 14 JUN 2023 11:27 East VIEW OF WA4-9, WA4-8, & THE OUTLET OF THE CONSTRUCTED OPEN CHANNEL IS&R Photograph Log 12-1 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 11:29 West VIEW OF WA4-9, WA4-8, & THE OUTLET OF THE CONSTRUCTED OPEN CHANNEL. VEGETATION GROWING INSIDE THE RIP RAP OPEN CHANNEL Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 13 Jaden Bond 14 JUN 2023 11:15 South VIEW OF WA4-8 THE COVER AREA IS WELL VEGETATED 14 Jaden Bond 14 JUN 2023 11:11 South VIEW OF WA4-8 THE COVER AREA IS&R Photograph Log 15 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 11:21 Southwest VIEW OF WA4-11 THE TAIL END OF THE CONSTRUCTED OPEN CHANNEL. VIEW OF WA4-8 Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 16 Jaden Bond 14 JUN 2023 11:18 Southwest VIEW OF GULLEY NEXT TO PAVED ROAD SHOWING NO SIGNS OF EROSION 17 Jaden Bond 13 JUN 2023 12:54 Northeast VIEW OF SMELTER ROAD AND CONSTRUCTED RIP RAP CHANNEL IS&R Photograph Log 18 Taken By: Date: Orientation: Description: Jaden Bond 13 JUN 2023 12:58 West THE DRAINAGE OF DRY CANYON TO THE WEST AND LOWER PORTION OF THE SITE. THEE ARE OCCASIONAL ROCKY AREAS BARE OF VEGETATION. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 19 Ryan Jackson 13 JUN 2023 13:06 Southwest THE AREA EAST OF THE SHOOTING RANGE IS VEGETATED 20 Ryan Jackson 13 JUN 2023 13:10 Northeast THE GUN CLUB ACCESS ROAD OVERTHERE BORROW AREA IS&R Photograph Log 21 Taken By: Date: Orientation: Description: Jaden Bond 13 JUN 2023 13:16 West THE GUN CLUB BORROW AREA Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 22 Jaden Bond 13 JUN 2023 13:21 East VIEW OF COVER AREA 23 Jaden Bond 13 JUN 2023 13:24 Northwest VIEW OF COVER AREA IS&R Photograph Log 24 Taken By: Date: Orientation: Description: Jaden Bond 13 JUN 2023 13:27 Southwest VIEW OF COVER AREA AND 3:1 SLOPE Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 25 Ryan Jackson 15 JUN 2023 14:16 Southwest THE SOIL COVERED AREA NEAR THE GUN CLUB REMAINS WELLVEGETATED AND IN GOOD CONDITION. 26 Ryan Jackson 15 JUN 2023 14:17 Northwest WA6-5 AND WA6-14 ARE IN GOOD CONDITION IS&R Photograph Log 27 Taken By: Date: Orientation: Description: Ryan Jackson 15 JUN 2023 14:16 Northwest WA6-12, THE REGRADED SLOPE, IS IB GOOD CONDITION Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 28 Jaden Bond 15 JUN 2023 14:09 North THE NORTHWEST MOST BORROW AREA,WA6-13. 29 Ryan Jackson 15 JUN 2023 14:07 North THE SLOPE ADJOINING THE SLAG AND WA6-8 IS IN GOOD CONDITION,NO EROSION IS OBSERVED. IS&R Photograph Log 30 Taken By: Date: Orientation: Description: Ryan Jackson 15 JUN 2023 10:52 West EDGE OF SLAG PILE SHOWING EROSION Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 31 Jaden Bond 13 JUN 2023 13:38 North THE COVER ON THE SLAG PILE 32 Jaden Bond 13 JUN 2023 13:41 East VIEW OF THE SLOPE RE-GRADE AT WA3-19 IS&R Photograph Log 33 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 9:10 Southwest THE SLAG PILE ON THE SOUTH OF SMELTER ROAD Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 34 Jaden Bond 14 JUN 2023 8:54 North THE COVER ON THE SLAG PILE 35 Jaden Bond 13 JUN 2023 13:35 Southeast THE SOIL COVER AT WA3N-5 IS&R Photograph Log 36 Taken By: Date: Orientation: Description: Jaden Bond 13 JUN 2023 13:33 Northwest VIEW OF BORROW AREA AND 3:1 SLOPE REGRADING Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 37 Jaden Bond 14 JUN 2023 9:17 South VIEW OF 3:1 SLOPE REGRADING, COVER AREA, & CONSTRUCTED STORM WATER DIVERSION BERMS 38 Jaden Bond 14 JUN 2023 9:21 South VIEW OF 3:1 SLOPE REGRADING, COVER AREA, & CONSTRUCTED STORM WATER DIVERSION BERMS. IS&R Photograph Log 39 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 9:24 South VIEW OF 3:1 SLOPE REGRADING, COVER AREA, & CONSTRUCTED STORM WATER DIVERSION BERMS. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 40 Jaden Bond 14 JUN 2023 9:25 Northwest VIEW OF 3:1 SLOPE REGRADING, COVER AREA, & CONSTRUCTED STORM WATER DIVERSION BERMS. 41 Jaden Bond 14 JUN 2023 9:27 South VIEW OF 3:1 SLOPE REGRADING, COVER AREA, & CONSTRUCTED STORM WATER DIVERSION BERMS. IS&R Photograph Log 42 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 9:30 North VIEW OF WA3N-7 THE COVER AREA WITH BRUSH AND NO WEEDS. THERE IS A PIECE OF RAILROAD TRACK DUMPED. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 43 Jaden Bond 14 JUN 2023 9:33 South VIEW OF WA3N-5 THE COVER AREA WITH BRUSH, WEEDS AND DUMPED EASY UP FENCE 43-1 Jaden Bond 14 JUN 2023 9:35 South VIEW OF WA3N-7 AND WA3N-15. THE CAPPED AREA WITH BRUSH ANDWEEDS. IS&R Photograph Log 44 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 9:40 Southwest VIEW OF WA3N-7 COVER AREA, NO EROSION PRESENT Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 44-1 Jaden Bond 14 JUN 2023 9:41 West VIEW OF WA3N-7 COVER AREA, NO EROSION PRESENT 45 Jaden Bond 14 JUN 2023 9:49 Southwest VIEW OF WA3N-6 COVER AREA WITH CONSTRUCTED RIP RAP OPEN CHANNEL IS&R Photograph Log 46 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 9:52 West VIEW OF WA3N-6 COVER AREA WITH CONSTRUCTED RIP RAP OPEN CHANNEL Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 47 Ryan Jackson 19 JUN 2023 11:47 Northeast VIEW OF WA3N-8 THE COVER AREA. NO SIGNS OF EROSION 48 Jaden Bond 14 JUN 2023 12:35 North VIEW OF WA3N-8 THE COVER AREA. NO SIGNS OF EROSION. IS&R Photograph Log 50 Taken By: Date: Orientation: Description: Ryan Jackson 13 JUN 2023 12:40 Northwest VIEW OF THE WORK AREA AROUND BOUNDARY 09. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 51 Ryan Jackson 13 JUN 2023 Northwest VIEW OF THE RUNOFF DRAINAGE CHANNEL BESIDE THE PAVED ROAD COVERED IN VEGETATION. 49 Jaden Bond 13 JUN 2023 12:50 Northwest VIEW OF COVER AREA OF WA8-9 IS&R Photograph Log 53 Taken By: Date: Orientation: Description: Jaden Bond 13 JUN 2023 11:54 Northeast VIEW OF THE DRAINAGE CHANNEL ON THE NORTH SIDE OF SMELTER ROAD. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 54 Jaden Bond 13 JUN 2023 East VIEW OF THE DRAINAGE CHANNEL SLOPE BESIDES THE PAVED ROAD 52 Ryan Jackson 15 JUN 2023 13:48 Northwest THE CONSTRUCTED EARTHEN AND RIPRAP CHANNEL THAT RUNSTHROUGH THE TAILINGS IMPOUNDMENT IS IN GOODCONDITION. IS&R Photograph Log 56 Taken By: Date: Orientation: Description: Ryan Jackson 13 JUN 2023 Northwest VIEW OF THE DRAINAGE CHANNEL BESIDE THE PAVED ROAD COVERED IN VEGETATION. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 57 Ryan Jackson 15 JUN 2023 12:38 Northwest THE SOUTH PORTION OF DIVERSIONBERM WA8-16 THE BERM IS WELL VEGETATED AND FREE FROMSIGNIFICANT EROSION. 55 Ryan Jackson 13 JUN 2023 Southeast VIEW BETWEEN THE ACCESS ROAD ON THE WEST SIDE, AND THE DRAINAGE CHANNEL ON THE EAST SIDE. IS&R Photograph Log 59 Taken By: Date: Orientation: Description: Jaden Bond 15 JUN 2023 10:28 Southwest VIEW OF DRAINAGE CHANNEL FROM DRY CREEK. RIP RAP CHANNEL ON BERM WITH BACK FILLED EROSION FILL NEXT TO IT. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 60 Jaden Bond 15 JUN 2023 10:04 North THE CONSTRUCTED BEEM AT THE NORTH OF WORK AREA 08. NO EROSION IS OBSERVED. VEGETATION IS IN GOOD CONDITION 58 Ryan Jackson 15 JUN 2023 9:51 West THE NORTH SLOPE OF THE TAILINGS PILE. VEGETATION IS PREVALENT AND THE SLOPE IS FREE FROM EROSION. IS&R Photograph Log 62 Taken By: Date: Orientation: Description: Ryan Jackson 15 JUN 2023 9:28 Southeast THE WASTE ISOLATED CELLAPPEARS IN GOOD CONDITION WITH SIGNIFICANT VEGETATIVE GROWTHON THE SOIL COVER. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 63 Jaden Bond 15 JUN 2023 9:45 Southeast THE TAILINGS SOIL COVER WITHINTHE TAILINGS IMPOUNDMENT IS IN GOOD CONDITION, NO SIGNIFICANTEROSION IS OBSERVED ON THE SLOPE. 61 Jaden Bond 15 JUN 2023 9:52 West THE CONSTRUCTED EARTHEN AND RIP RAP CHANNEL THAT RUNS THROUGH THE TAILINGS IMPOUNDMENT IS IN GOOD CONDITION. IS&R Photograph Log 65 Taken By: Date: Orientation: Description: Jaden Bond 15 JUN 2023 10:19 East THE TAILINGS SOIL COVER WITHIN THE TAILINGS IMPOUNDMENT IS IN GOOD CONDITION, NO SIGNIFICANT EROSION IS OBSERVED ON THE SLOPE. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 66 Ryan Jackson 15 JUN 2023 12:24 East VIEW OF THE SOUTHERN-MOST CONSTRUCTED RIPRAP CHANNELS WITHIN THE TAILINGS IMPOUND. 64 Jaden Bond 15 JUN 2023 9:28 East THE TAILINGS AOIL COVER WITHIN THE TAILINGS IMPOUNDMENT IS IN GOOD CONDITION, NO SIGNIFICANT EROSION IS OBSERVED ON THE SLOPE. IS&R Photograph Log 68 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 13:24 North VIEW OF THE REPOSITORY AREA WITHIN THE IMPOUNDMENT.VEGETATION AND GRASSES ARE LUSH. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 67 Ryan Jackson 15 JUN 2023 12:09 East VIEW LOOKING INTO THE REPOSITORY FROM ATOP THE TAILINGS IMPOUND. 69 Jaden Bond 14 JUN 2023 13:27 East THE SOUTHEAST BORROW AREA. THE VEGETATION ANS SHRUBBERY ARE VERY HEALTHY IS&R Photograph Log 70 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 13:16 East VIEW OF THE WESTERN EDGE OF THE SITE FROM ERICSON ROAD. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 71 Ryan Jackson 15 JUN 2023 11:27 Northwest THE VEGETATION IN THIS AREA IS IN GOOD CONDITION. NO SIGNIFICANT SOIL EROSION IS OBSERVED 72 Ryan Jackson 15 JUN 2023 11:40 Southwest THE VEGETATION IN THIS AREA IS IN GOOD CONDITION. NO SIGNIFICANT SOIL EROSION IS OBSERVED IS&R Photograph Log 73 Taken By: Date: Orientation: Description: Jaden Bond 15 JUN 2023 8:33 East VIEW OF THE REVEGETATED TAILINGS IMPOUNDMENT FROM THE SITE ENTRANCE Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 74 Ryan Jackson 15 JUN 2023 11:20 South VIEW OF SOUTHWEST BORROW AREA 75 Jaden Bond 15 JUN 2023 11:08 East THE TAILINGS IMPOUNDMENT DRAINAGE DITCH. VEGETATION IN THIS AREA HAS GROWN WELL SINCE ADDITIONAL COVER SOIL AND SEEDING PLACEMENT IN 2020. IS&R Photograph Log Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 76 Ryan Jackson 15 JUN 2023 12:23 Northwest VIEW OF BORROW AREA 78 Ryan Jackson 15 JUN 2023 8:56 Northeast VIEW OF WA7-7 ACCESS ROAD. VEGETATION IN GOOD CONDITION 77 Ryan Jackson 15 JUN 2023 8:52 Northwest COVER AREA OF ELTON TUNNEL WASTE ROCK. VEGETATION IS GREEN IS&R Photograph Log 79 Taken By: Date: Orientation: Description: Jaden Bond 15 JUN 2023 9:04 East VIEW OF WA6-8, THE SOIL COVERED SLOPE, NEAR THE SLAG. THE VEGETATION IS HEALTHY, AND NO EROSION IS OBSERVED ON THE SLOPE Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 80 Ryan Jackson 15 JUN 2023 9:12 North VIEW OF THE FORMER SOUTHSETTLING POND AT THE NORTH PORTION OF WA-08 81 Jaden Bond 15 JUN 2023 9:12 North VIEW OF THE FORMER NORTH SETTLING POND AT THE NORTHPORTION OF WA-08. IS&R Photograph Log 82 Taken By: Date: Orientation: Description: Jaden Bond 15 JUN 2023 10:41 Southwest VIEW FROM THE TOO OF THE NORTH END OF THE TAILINGS IMPOUNDMENT Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 83 Ryan Jackson 15 JUN 2023 8:47 Southwest VIEW OF WA8-12 CARR FORK TAILINGS DAM 84 Ryan Jackson 15 JUN 2023 11:18 Southeast VIEW OF THE TAILINGSIMPOUNDMENT FROM BLUE PEAK ROAD. IS&R Photograph Log 85 Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 86 Jaden Bond 15 JUN 2023 11:18 Southeast THE SPRING CREEK DRAINAGE ON THE IS&R PROPERTY, LOCATION OF FORMER ADIT CLOSURE. 87 Jaden Bond 15 JUN 2023 11:55 West THE PROPERTY BOUNDARY ALONG A RESIDENTIAL AREA. Jaden Bond 15 JUN 2023 11:18 Southwest VIEW OF THE OPEN SPACEBETWEEN BLUE PEAK ROAD AND ERICSON ROAD. IS&R Photograph Log 88 Taken By: Date: Orientation: Description: Ryan Jackson 15 JUN 2023 12:47 Northeast THE SLOPE NEAR SPRING CANYON IS CONSISTENTLY VEGETATED. SLOPE UPGRADIENT OF COVER AREA. Taken By: Date: Orientation: Description: Taken By: Date: Orientation: Description: 89 Jaden Bond 14 JUN 2023 10:43 West CONSTRUCTED EARTHEN CHANNEL. 90 Jaden Bond 14 JUN 2023 8:59 Northeast A DRAINAGE DIVERSION WAS INSTALLED IN 2021 ALONG YHE ROAD SIDE TO AVOID FURTHER EROSION OF THE SLAG SLOPE. IS&R Photograph Log 91 Taken By: Date: Orientation: Description: Jaden Bond 14 JUN 2023 12:03 West VIEW OF WA4-13 THE CONSTRUCTED OPEN CHANNEL RIP RAP Taken By: Date: Orientation: Description: 92 Jaden Bond 13 JUN 2023 13:03 Southwest VIEW OF SMELTER ROAD AND DRAINAGE CHANNEL. NO SIGN OF EROSION IN DRAINAGE CHANNEL. 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX C: UDWR IS&R/Carr Fork Boundary Fence Maintenance Letter August 23, 2023 Delivered via e-mail Mark Farmer Utah Division of Wildlife Resources 1115 N Main St. Springville, UT 84663 Re: Pine Canyon Conservation Area Boundary Fence Inspection Mark, During the 2023 Annual Inspection of the Carr Fork/Pine Canyon Conservation Area (PCCA) multiple locations were noted where the fence line was in disrepair. These locations have been identified with GPS coordinates, as shown in the enclosed table. Additionally, a map depicting the locations (see Figure 1) and an attached Photolog showing the fence line locations requiring maintenance are enclosed. New chainlink fence installed by UDWR along the north boundary of the Carr Fork Subdivision is also shown on Figure 2. Based on previous discussion and cooperation, Atlantic Richfield Company is willing to work with UDWR on additional chainlink fence in certain key areas such as those shown on Photos 22 – 28 of the attached Photolog. Additionally as previously discussed in the field, Atlantic Richfield installed additional chain-link fence at certain locations at the slag pile (Figure 2). Thank you for your continued work and cooperation in maintaining the site. Please call myself at (406) 491-7132 or Ryan Anderson at (801) 972-6222 with any questions. Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager August 23, 2023 Page 2 Attachments: PCCA Inspection Figures PCCA Fence Maintenance Coordinates PCCA Fence Maintenance Photolog Cc: Kevin Cosper – AECI (email) Ryan Anderson – AECI (email) Cynthia Oppenheimer – Parsons (email) Ron Halsey - Atlantic Richfield (email) Lucas Satterlee – DG&S Law (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 August 23, 2023 Page 3 Table 1 PCCA/CARR FORK 2023 Fence Maintenance Locations Point Easting Northing Description 01 -112.247830 40.541777 BROKEN BARED WIRES 02 -112.240987 40.544339 BROKEN BARBED WIRE STRAND 07 -112.228403 40.551813 BROKEN BARBED WIRE STRAND 08 -112.226781 40.554851 BROKEN BARBED WIRE STRAND 09 -112.237918 40.545480 BROKEN BARBED WIRE STRAND 10 -112.240169 40.544932 ENTANGLED BARBED WIRE 11 -112.242113 40.544280 LOOSE BARBED WIRE 12 -112.242152 40.544263 LOOSE BARBED WIRE 13 -112.243432 40.543853 BROKEN BARBED WIRE 14 -112.249539 40.541723 BROKEN BARBED WIRE 15 -112.255899 40.540883 BROKEN BARBED WIRE 16 -112.256088 40.540874 BROKEN BARBED WIRE 17 -112.259780 40.540749 BAREBED WIRE DISCONNECTED TO T-POST 18 -112.266102 40.544789 LOOSE BARBED WIRE STRAND 19 -112.256534 40.551312 BROKEN T-POST 20 -112.255158 40.554591 LOOSE BARBED WIRE 22 -112.262835 40.555042 MIDDLE WOODEN POST BROKEN 23 -112.265948 40.554985 BROKEN TOP POST 24 -112.267468 40.554983 MIDDLE WOODEN POST FRACTURED 25 -112.267907 40.555014 TOP WOODEN POST FRACTURED 26 -112.269143 40.554993 TOP WOODEN POST MISSING 27 -112.271775 40.554986 OPENING IN WOODEN FENCE LINE. AECI PLACED BARBEDWIRE ACROSS OPENING AS TEMPORARY FIX. 28 -112.272830 40.554944 OPENING IN WOODEN FENCE LINE AECI PLACED BARBEDWIRE ACROSS OPENING AS TEMPORARY FIX 31 -112.245941 40.566455 FENCE IS SAGGING IN SEVERAL LOCATIONS HERE WITH MAKE-SHIFT POSTS AND MISSING STRANDS. THIS FENCE BORDERS SOON-TO-BE DEVELOPED PRIVATE PROPERTY. 32 -112.248247 40.562940 STRANDS ATTACHED TO RR TIES ARE LOOSE. 33 -112.245836 40.559499 CUT TOP STRAND OF FENCE WIRE. 34 -112.250965 40.558799 STRANDS MISSING, FALLEN OFF POSTS. 35 -112.252161 40.558759 SECTION OF FENCE HAS BEEN REMOVED FOR ACCESS OF HEAVY EQUIPMENT TO SHAPE THE DRAINAGE DITCH ON PCCA PROPERTY. 36 -112.245998 40.568807 BROKEN H BRACE WITH LOOSE WIRE 37 -112.253772 40.558118 BROKEN BARBED WIRE STRAND 38 -112.246010 40.570689 BROKEN AND LOOSE BARBED WIRE STRAND 39 -112.246029 40.572967 BROKEN AND LOOSE BARBED WIRE STRAND General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 2 6 2 0 2 3 A n n u a l I n s p e c t i o n \ 2 0 2 3 F e n c e I n s p e c t i o n \ F e n c e I n s p e c t i o n M a p . a p r x 01 1"=1,500' 01-AUG-2023 IS&R O&M RVA RK RK TOOELE, UT FENCE BREAK LOCATIONS PINE CANYON CONSERVATION AREA ATLANTIC RICHFIELD 0 750 1,500 SCALE IN FEET PCCA/CARR FORK BOUNDARY FENCE BREAKS VICINITY MAP (NOT TO SCALE) 0910 02 12 1113 07 08 01 19 18 20 14 151617 22232425262728 31 32 333435 37 36 38 39 ! SITE LOCATION General Notes APPROVED: ENGINEER: DRAWN BY: Date Project Scale Sheet THESE PLANS AND SPECIFICATIONS ARE THE PROPERTY OF ANDERSON ENGINEERING COMPANY, INC., 2053 NORTH HILLCREST ROAD, SARATOGA SPRINGS, UTAH 84045 AND SHALL NOT BE COPIED, REDUCED OR REPRODUCED WITHOUT THEIR WRITTEN PERMISSION Do c u m e n t P a t h : T : \ B P - C a r r F o r k \ 5 . 2 7 2 0 2 3 F e n c e M a i n t e n a n c e \ 2 3 0 7 2 6 A s B u l i t M a p . a p r x 201-AUG-2023 IS&R O&M RVA RK RK TOOELE, UT FENCE MAINTENANCE PINE CANYON CONSERVATION AREA ATLANTIC RICHFIELD 0 1,000 2,000 SCALE IN FEET VICINITY MAP (NOT TO SCALE) ! SITE LOCATION PCCA/CARR FORK BOUNDARY UDWR CHAINLINK FENCE NEW 8 FT CHAINLINK FENCE 1"= 2,000' 3 STRANDS OF BARBED WIRE PLACED ON TOP OF POST POSTED KEEP OUT UNSTABLE SURFACE SIGNS 3 PEDESTRIAN GATES Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 SOUTHWEST 40.54177683 N -112.2478302 W BROKEN BARBED WIRES 01 Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 SOUTH 40.54433882 N -112.24098729 W BROKEN BARBED WIRE STRAND 02 Photograph Log Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 EAST 40.55181257 N -112.22840254 W BROKEN BARBED WIRE STRAND Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 SOUTHEAST 40.55485144 N -112.22678067 W BROKEN BARBED WIRE STRAND 07 08 09 Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 04/05/2023 NORTH 40.54548012 N -112.23791781 W BROKEN BARBED WIRE Photograph Log Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.5449323 N -112.24016904 W ENTANGLED BARBED WIRE Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.54428039 N -112.2421132 W LOOSE BARBED WIRE 10 11 12 Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTHWEST 40.54426346 N -112.24215219 W LOOSE BARBED WIRE Photograph Log Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.54385266 N -112.2434317 W BROKEN BARBED WIRE Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.54172281 N -112.24953912 W BROKEN BARBED WIRE 13 14 15 Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.54088275 N -112.25589895 W BROKEN BARBED WIRE Photograph Log Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTH 40.54087393 N -112.25608754 W BROKEN BARBED WIRE Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 NORTHEAST 40.54074913 N -112.25977961 W BARBED WIRE DISCONNECTED TO T-POST 16 17 18 Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 SOUTH 40.55131207 N -112.25653426 W LOOSE BARBED WIRE STRAND Photograph Log Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 EAST 40.54478942 N -112.26610203 W BROKEN T-POST Date: Project: Taken By: Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RYAN JACKSON 04/05/2023 EAST 40.55459125 N -112.25515837 W LOOSE BARBED WIRE 19 20 Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55503635 N -112.26282297 W MIDDLE WOODEN POST BROKEN 22 Description: Project: Project: Taken By: Date: Taken By: Orientation: Orientation: Latitude: Latitude: Longitude: Longitude: Description: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55497945 N -112.26593598 W TOP WOODEN POST BROKEN 23 IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55497707 N -112.26745648 W MIDDLE WOODEN POST FRACTURED 24 Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55500838 N -112.26789559 W TOP WOODEN POST FRACTURED 25 Description: Project: Project: Taken By: Date: Taken By: Orientation: Orientation: Latitude: Latitude: Longitude: Longitude: Description: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55498742 N -112.26913081 W TOP WOODEN POST MISSING 26 IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 WEST 40.55497992 N -112.27176324 W 27 OPENING IN WOODEN FENCE LINE AECIPLACED BARBEDWIRE ACROSS OPENING AS TEMPORARY FIX. Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.55493786 N -112.27281794 W 28 OPENING IN WOODEN FENCE LINE AECIPLACED BARBEDWIRE ACROSS OPENING AS TEMPORARY FIX Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: 31 Description: Project: Project: Taken By: Date: Taken By: Orientation: Orientation: Latitude: Latitude: Longitude: Longitude: Description: Description: 32 IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 SOUTHWEST 40.55949253 N -112.24582423 W CUT TOP STRAND OF FENCE WIRE. 33 IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 NORTHWEST 40.56644864 N -112.24592953 W FENCE IS SAGGING IN SEVERAL LOCATIONS HERE WITH MAKE-SHIFT POSTS AND MISSING STRANDS. THIS FENCE BORDERS SOON-TO-BE DEVELOPED PRIVATE PROPERTY. IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 SOUTHWEST 40.56293372 N -112.24823567 W STRANDS ATTACHED TO RAIL ROAD TIES ARE LOOSE. Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 NORTHWEST 40.55879287 N -112.25095351 W STRANDS MISSING, FALLEN OFF POSTS. 34 Description: Project: Project: Taken By: Date: Taken By: Orientation: Orientation: Latitude: Latitude: Longitude: Longitude: Description: Description: 35 IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTHWEST 40.56880138 N -112.24598625 W BROKEN H-BRACE WITH LOOSE WIRE 36 IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 SOUTH 40.55875321 N -112.25214944 W SECTION OF FENCE HAS BEEN REMOVED FOR ACCESS OF HEAVY EQUIPMENT TO SHAPE THE DRAINAGE DITCH ON PCCA PROPERTY. Date: Project: Taken By: Photograph Log Orientation: Latitude: Longitude: Description: IS&R 2023 FENCE INSPECTION DANIEL SMITH 25 Apr 2023 NORTH 40.55811187 N -112.25376003 W BROKEN BARBED WIRE STRAND Description: Project: Project: Taken By: Date: Taken By: Orientation: Orientation: Latitude: Latitude: Longitude: Longitude: Description: Description: 38 IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTH 40.57068256 N -112.24599862 W BROKEN AND LOOSE BARBED WIRE STRAND 37 IS&R 2023 FENCE INSPECTION RANDY KEE 25 Apr 2023 NORTHWEST 40.5729613 N -112.24601687 W BROKEN AND LOOSE BARBED WIRE STRAND 39 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX D: 2023 Maintenance Photo Log IS&R Photograph Log 186 Taken By: Date: Orientation: Description: Randy Kee 06/05/2023 East CHAINLINK FENCE SET UP FOR TENSIONING. 188 Taken By: Date: Orientation: Description: Randy Kee 06/05/2023 Northwest 3 FT CHAINLINK FENCE INSTALLED IS&R Photograph Log 195 Taken By: Date: Orientation: Description: Randy Kee 06/06/2023 Northeast EXISTING FENCE LINE CONNECTED TO NEW EASTERN FENCE LINE. 196 Taken By: Date: Orientation: Description: 197 Taken By: Date: Orientation: Description: Randy Kee 06/06/2023 North MOUNTAIN STATE MARKING POST HEIGHT AND CUTTING IT. BANDSAW USED TO CUT AT 80 IN TO 82 IN. Randy Kee 06/06/2023 North CHAIN LINK FABRIC AND BARBED WIRE INSTALLED BETWEEN TERMINAL AND ACCESS GATE IS&R Photograph Log 213 Taken By: Date: Orientation: Description: Randy Kee 06/08/2023 Northeast FENCE WORKING LOOKING DOWN 3:1 SLOPE FROM P6 214 Taken By: Date: Orientation: Description: 215 Taken By: Date: Orientation: Description: Randy Kee 06/08/2023 South WEST SIDE FENCE AT SLAG PILE SHOWING COMPLETED SECTION TO SMELTER ROAD Randy Kee 06/08/2023 North COMPELETED SECTION OF WESTERN SIDE FENCE FROM INSIDE SLAG PILE AREA IS&R Photograph Log 219 Taken By: Date: Orientation: Description: Randy Kee 06/09/2023 East Placing barbed wire 3:1 slope area west slag pile location 221 Taken By: Date: Orientation: Description: Randy Kee 06/09/2023 South West slag completed fence from P7 at 3:1 slope. IS&R Photograph Log 231 Taken By: Date: Orientation: Description: Randy Kee 06/09/2023 East Completed fence at Smelter Road toward Kennecott gate. Tie in at existing fence. 232 Taken By: Date: Orientation: Description: 233 Taken By: Date: Orientation: Description: Randy Kee 06/09/2023 East Existing fence on Smelter Road toward Kennecott gate. Randy Kee 06/09/2023 East Completed fence on Smelter Road toward Kennecott gate. IS&R Photograph Log 234 Taken By: Date: Orientation: Description: Ryan Jackson 24 JUL 2023 North KEEP OUT UNSTABLE SURFACE SIGN POSTED ON THE CHAINLINK FENCE 235 Taken By: Date: Orientation: Description: 236 Taken By: Date: Orientation: Description: Ryan Jackson 24 JUL 2023 North KEEP OUT UNSTABLE SURFACE SIGN POSTED AROUND SLAG PILE Ryan Jackson 24 JUL 2023 East KEEP OUT UNSTABLE SURFACE SIGN POSTED NEAR ENTRANCE GATES IS&R Photograph Log 12 Taken By: Date: Orientation: Description: Randy Kee 07 NOV 2023 West CRAWLER EXCAVATOR, KOMATSU PC 210 LC BROUGHT ONSITE 13 Taken By: Date: Orientation: Description: 14 Taken By: Date: Orientation: Description: Randy Kee 07 NOV 2023 JOHN DEERE TRACTOR WITH BUCKET AND BOX BLADE BROUGHT ONSITE Randy Kee 07 NOV 2023 Southwest D6 DOZER STRIPPED BORROW AREA SURFACE SOIL South IS&R Photograph Log 36 Taken By: Date: Orientation: Description: Ryan Anderson Northeast Borrow Soil Placement at 6.4 37 Taken By: Date: Orientation: Description: Ryan Anderson Northwest COMPLETED 18” COVER AT 6.4. EDGES FEATHERED OUT TO TIE INTO TOPOGRAPHY. 08 NOV 2023 08 NOV 2023 IS&R Photograph Log 48 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 West PELLETIZED LIME BEING BROADCASTED AT WORK AREA 18.1 49 Taken By: Date: Orientation: Description: 50 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 West FLARE OPERATOR DISTRIBUTING LIME AT WORK AREA 18.2 Randy Kee 09 NOV 2023 Southwest WORK AREA 25 SOIL BEING TILLED WITH DISC HARROW IS&R Photograph Log 54 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 East WORK AREA 6.3 WITH 18 INCH FILLAND COMPACTION FROM SKID STEER TRACKS 55 Taken By: Date: Orientation: Description: 56 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 East WORK AREA 11 WITH 18 INCH FILL AND COMPACTION FROM SKID STEER TRACKS Randy Kee 09 NOV 2023 North SKID STEER USING TOP SOIL TO COVER WORK AREA 27 IS&R Photograph Log 57 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 Northwest DUMP TRUCK DELIVERING A LOADTO WORK AREA 27 58 Taken By: Date: Orientation: Description: 59 Taken By: Date: Orientation: Description: Randy Kee 09 NOV 2023 West BROKEN DISC HARROW COMPONENT DISMANTLED AND TAKEN OFFSITE. THE COMPONENT WAS WELDED BACK TOGETHER OFFSITE. Randy Kee 09 NOV 2023 North COMPONENT WELDED BACK TOGETHER. DISC HARROW IS FIXED AND FUNCTIONAL IS&R Photograph Log 60 Taken By: Date: Orientation: Description: Randy Kee Northwest SKID STEER LEVELING OUT THECOVER WITH REMAINING TOP SOIL. 61 Taken By: Date: Orientation: Description: Randy Kee East SKID STEER FINISHED COMPACTING WORK AREA 27 WITH TRACKS. 09 NOV 2023 09 NOV 2023 IS&R Photograph Log 01 Taken By: Date: Orientation: Description: Ryan Anderson North AREA 25 COVER PLACEMENT PROGRESS 02 Taken By: Date: Orientation: Description: 03 Taken By: Date: Orientation: Description: Ryan Anderson West WORK AREA SIGNS PLACED AROUND WORK AREA EACH DAY Ryan Anderson East WORK AREA 27 10 NOV 2023 10 NOV 2023 10 NOV 2023 IS&R Photograph Log 04 Taken By: Date: Orientation: Description: Ryan Anderson South Completed 18.1 05 Taken By: Date: Orientation: Description: 06 Taken By: Date: Orientation: Description: Ryan Anderson Placing Soil at 18.1 Ryan Anderson Placing Soil at 18.2 Northwest North 10 NOV 2023 10 NOV 2023 10 NOV 2023 IS&R Photograph Log 71 Taken By: Date: Orientation: Description: Randy Kee West LIME PLACED ON WORK AREA 12.2 WITH BROADCASTER. 72 Taken By: Date: Orientation: Description: Randy Kee Southwest LIME PLACED ON WORK AREA 12.3 WITH BROADCASTER 13 NOV 2023 13 NOV 2023 IS&R Photograph Log 73 Taken By: Date: Orientation: Description: Ryan Anderson North Placing borrow soil at location 12.2 74 Taken By: Date: Orientation: Description: 75 Taken By: Date: Orientation: Description: Ryan Anderson North Placing borrow soil at location 12.2. Ryan Anderson West Mowed travel path to location 12.4. 13 NOV 2023 13 NOV 2023 13 NOV 2023 IS&R Photograph Log 76 Taken By: Date: Orientation: Description: Randy Kee West SKID STEER WORKING THE SOILOVER THE BERM AT WORK AREA 12.2 77 Taken By: Date: Orientation: Description: 78 Taken By: Date: Orientation: Description: Randy Kee North EXCAVATOR LOADING UP DUMP TRUCK AT THE BORROW AREA Randy Kee East SKID STEER USING TRACKS TO COMPACT THE TOP SOIL AT WORK AREA 12.2 13 NOV 2023 13 NOV 2023 13 NOV 2023 IS&R Photograph Log 79 Taken By: Date: Orientation: Description: Ryan Anderson West Loading trucks at borrow. Water Truckused to stabilize ground and control dust. 80 Taken By: Date: Orientation: Description: 81 Taken By: Date: Orientation: Description: Ryan Anderson West View of Borrow Area Ryan Anderson East Staging Area 13 NOV 2023 13 NOV 2023 13 NOV 2023 IS&R Photograph Log 82 Taken By: Date: Orientation: Description: Randy Kee 83 Taken By: Date: Orientation: Description: 84 Taken By: Date: Orientation: Description: Randy Kee East SOIL COMPACTED WITH SKID STEER TRACKS AT WORK AREA 12.2 13 NOV 2023 Southwest WATER TRUCK SPRAYING THE SOIL FOR DUST MITIGATION. Randy Kee 13 NOV 2023 West SOIL TILLED AT WORK AREA 12.3 13 NOV 2023 IS&R Photograph Log 85 Taken By: Date: Orientation: Description: Randy Kee East TOP SOIL DUMPED NEAR WORKAREA 12.1 86 Taken By: Date: Orientation: Description: 87 Taken By: Date: Orientation: Description: Randy Kee West DUMP TRUCK UNLOADING TOP SOIL NEAR WORK AREA 12.4 Randy Kee Northwest SKID STEER WORKING ON PLACING AND COMPACTING TOP SOIL. 13 NOV 2023 13 NOV 2023 13 NOV 2023 IS&R Photograph Log 93 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 Northwest BERM COMPLETED WITH COMPACTION OF 18 INCH FILL AT WORK AREA 12.3 94 Taken By: Date: Orientation: Description: 95 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 West WORK AREA 12.1 SOIL ABOUT TO BE PLACED OVER SURFACE SOIL Randy Kee 14 NOV 2023 West DOZER MOVING TOP SOIL INTO PLACE AT WORK AREA 12.4 IS&R Photograph Log 96 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 Northwest 12.1 WORK AREA COMPACTED AND FILLED WITH AN 18 INCH COVER. 97 Taken By: Date: Orientation: Description: 98 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 Northeast WORK AREA 14 TOP SOIL TILLED WITH DISCS. Randy Kee 14 NOV 2023 Northeast TOP SOIL DUMPED NEAR WORK AREA 14. SOIL WILL BE PUSHED OVER WORK AREA 14. GRADUALLY WORKING THEIR WAY TO THE FAR NORTHEAST END IS&R Photograph Log 99 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 East WORK AREA 12.4 COMPLETED WITH AN 18 INCH FILL AND COMPACTION FROM D6 TRACKS. 100 Taken By: Date: Orientation: Description: 101 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 South WORK AREA 12.4 COMPLETED WITH AN 18 INCH FILL AND COMPACTION FROM D6 TRACKS. Randy Kee 14 NOV 2023 Northeast D6 DOZER MOVING TOP SOIL OVER WORK AREA 14. IS&R Photograph Log 103 Taken By: Date: Orientation: Description: 104 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 Northeast TOP SOIL PLACED OVER WORK AREA 14 WITH D6. Randy Kee 14 NOV 2023 Northwest DUMP TRUCK UNLOADING TOP SOILON WORK AREA 14 IS&R Photograph Log 105 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 Southwest SKID STEER WORKING ON PLACING THE SMALLER PILES OF DIRT BACK INTO THE CENTER. 106 Taken By: Date: Orientation: Description: Randy Kee 14 NOV 2023 North LOADS OF DIRT PILED IN FRONT OF D6 DOZER. IS&R Photograph Log 107 Taken By: Date: Orientation: Description: Randy Kee 15 NOV 2023 Northeast D6 DOZER PUSHING TOP SOIL. OPERATOR WORKING ON COMPLETING WORK AREA 14 108 Taken By: Date: Orientation: Description: 109 Taken By: Date: Orientation: Description: Randy Kee 15 NOV 2023 East DUMP TRUCK UNLOADING TOP SOIL AT WORK AREA 14 Randy Kee 15 NOV 2023 East SKID STEER WORKING ON PUTTING THE REMAINING PILES OF SOIL INTO PLACE. IS&R Photograph Log 113 Taken By: Date: Orientation: Description: Randy Kee 15 NOV 2023 Southeast DUMP TRUCK UNLOADING TOP SOIL AT WORK AREA 22.1. WORK AREA SURFACE WAS TILLED WITH DISC. 114 Taken By: Date: Orientation: Description: 115 Taken By: Date: Orientation: Description: Randy Kee 15 NOV 2023 Southeast WORK AREA 22.2 TILLED WITH DISC. Randy Kee 15 NOV 2023 Northeast WORK AREA 14 COMPLETED WITH 18 IN FILL AND COMPACTION WITH SKID STEER TRACKS IS&R Photograph Log 159 Taken By: Date: Orientation: Description: Randy Kee 28 NOV 2023 Northeast SKID STEER USING BALE BOSS 1 TO FINISH DISTRIBUTION OF HAY ON WORK AREA 5.2 160 Taken By: Date: Orientation: Description: 161 Taken By: Date: Orientation: Description: Randy Kee 28 NOV 2023 West D6 DOZER USING TRACKS TO PLANT SEEDING IN THE SOIL AT WORK AREA 5.2 Randy Kee 28 NOV 2023 West WORK AREA 5.3 COVERED WITH STRAW HAY, SEEDING, AND FERTILIZER. IS&R Photograph Log 169 Taken By: Date: Orientation: Description: 170 Taken By: Date: Orientation: Description: Randy Kee 28 NOV 2023 Northeast D6 DOZER USING TRACKS TO PLANT SEED INTO SURFACE SOIL. Randy Kee 28 NOV 2023 South WORK AREA 22.1 COMPLETED. D6 DOZER WORKING ON WORK AREA 22.2. SKID STEER WORKING ON REMAINING AREAS IS&R Photograph Log 231201-01 Taken By: Date: Orientation: Description: Ryan Anderson North Completed Grading on Borrow Area, Top Siil to be pushed over top next 231201-01 Taken By: Date: Orientation: Description: 231201-01 Taken By: Date: Orientation: Description: Ryan Anderson North Dozer moved on transport to upper site to walk in seeding and hay mulch Ryan Anderson North Transport on site 01 DEC 2023 01 DEC 2023 01 DEC 2023 IS&R Photograph Log 186 Taken By: Date: Orientation: Description: Randy Kee 4 DEC 2023 West STRAW HAY DISTRIBUTED WITH BALE BOSS 1 AT THE BORROW AREA. 187 Taken By: Date: Orientation: Description: 188 Taken By: Date: Orientation: Description: Randy Kee 4 DEC 2023 North D6 DOZER USING TRACTS TO PLANT THE SEEDS Randy Kee 4 DEC 2023 West FLARE CONSTRUCTION OPERATORS WORKING ON COMPLETING THE BORROW AREA IS&R Photograph Log 189 Taken By: Date: Orientation: Description: Randy Kee 4 DEC 2023 South NEARLY COMPLETE WITH THE BORROW AREA. 190 Taken By: Date: Orientation: Description: 191 Taken By: Date: Orientation: Description: Randy Kee 4 DEC 2023 North SEEDING PROCESS COMPLETED ON TEMPORARY ROAD TO BORROW AREA Randy Kee 4 DEC 2023 West SEEDING PROCESS COMPLETED ON BORROW AREA IS&R Photograph Log 1 Taken By: Date: Orientation: Description: Ryan Anderson 10 JAN 2023 South PIECE OF SECURITY GATE BROKEN AND BENT. FOUND LAYING ON THE SIDE OF THE ROAD. 2 Taken By: Date: Orientation: Description: 3 Taken By: Date: Orientation: Description: Ryan Anderson 10 JAN 2023 East ANOTHER PIECE OF THE SECURITY GATE BROKEN AND FOUND ALONG THE ROAD Ryan Anderson 10 JAN 2023 North SECURITY GATE MISSING AND NOT SECURING THE SITE. IS&R Photograph Log 4 Taken By: Date: Orientation: Description: Ryan Anderson 10 JAN 2023 North BROKEN SIDE OF SECURITY GATE REPLACED WITH TUBE GATE Taken By: Date: Orientation: Description: Tim Barbee 8 JAN 2024 Northeast MACHINE BEING USED TO HOIST UP THE REPAIRED GATE Taken By: Date: Orientation: Description: Tim Barbee 08 JAN 2023 Northeast GATE PAINTED YELLOW, FULLY FUNCTIONAL AND LOCKED. 6 5 IS&R Photograph Log 04 Taken By: Date/Time: Orientation: Description: RANDY KEE 04/17/2023 WEST UDWR 8-FT CHAINLINK FENCE CONSTRUCTION ALONG CARR FORK SUBDIVISION. 8 FOOT POSTS SET IN CONCRETE 05 Taken By: Date/Time: Orientation: Description: 06 Taken By: Date/Time: Orientation: Description: RANDY KEE 04/17/2023 EAST UDWR 8-FT CHAINLINK FENCE CONSTRUCTION ALONG CARR FORK SUBDIVISION. FENCE POSTS SET EVERY OTHER 10 FEET RANDY KEE 04/17/2023 SOUTH UDWR 8-FT CHAINLINK FENCE CONSTRUCTION ALONG CARR FORK SUBDIVISION. CONCRETE FOOTING IS DRY CURING 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX E: Correspondence May 19, 2023 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR US Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: Notification of Annual Inspection and Groundwater Monitoring Event at the International Smelter and Refining Site, Tooele, Utah Dear Mr. Wangerud, In accordance with the International Smelter and Refining (IS&R) Long-Term Operational & Monitoring Plan, Atlantic Richfield Company is providing written notification of plans to conduct annual groundwater monitoring and annual inspection activities at the IS&R Site in Tooele County, UT from June 5-16, 2023. If you have any questions regarding our planned field activities, please contact myself at (406) 491-7132 or Ryan Anderson of Anderson Engineering Co., Inc at (801) 972-6222. Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Cc: Erin Agee – EPA (email) Tony Howes – UDEQ (email) Bryan Slade – TCHD (email) Mark Farmer – UDWR (email) Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager May 17, 2023 Page 2 Kevin Cosper-AECI (email) Ryan Anderson – AECI (email) Cynthia Oppenheimer– Parsons (email) Ron Halsey -Atlantic Richfield (email) Lucas Satterlee – DG&S (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 May 19, 2023 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR US Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: Notification of Annual Inspection and Groundwater Monitoring Event at the International Smelter and Refining Site, Tooele, Utah Dear Mr. Wangerud, In accordance with the International Smelter and Refining (IS&R) Long-Term Operational & Monitoring Plan, Atlantic Richfield Company is providing written notification of plans to conduct annual groundwater monitoring and annual inspection activities at the IS&R Site in Tooele County, UT from June 5-16, 2023. If you have any questions regarding our planned field activities, please contact myself at (406) 491-7132 or Ryan Anderson of Anderson Engineering Co., Inc at (801) 972-6222. Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Cc: Erin Agee – EPA (email) Tony Howes – UDEQ (email) Bryan Slade – TCHD (email) Mark Farmer – UDWR (email) Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager May 17, 2023 Page 2 Kevin Cosper-AECI (email) Ryan Anderson – AECI (email) Cynthia Oppenheimer– Parsons (email) Ron Halsey -Atlantic Richfield (email) Lucas Satterlee – DG&S (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 October 5, 2023 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR U.S. Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: Project Coordinator for the International Smelter and Refining Site, Tooele, Utah Dear Mr. Wangerud, Atlantic Richfield Company (Atlantic Richfield) is writing to request that EPA direct all future correspondence pertaining to the International Smelting and Refining (IS&R) Site in Tooele County, UT, to Steve Ferry (contact information provided above), with copies also sent by email to Ron Halsey and Nathan Block (email addresses provided at the bottom of this letter). In accordance with Section XII of the Consent Decree (Civil Action No. 2:16CV982DBP), Atlantic Richfield notified EPA on April 21, 2020 that Steve Ferry was replacing Cord Harris as the Atlantic Richfield Project Coordinator for the Site. However, EPA’s last Bill for Collection dated May 5, 2023 was addressed to both Mr. Harris and Mr. Ferry. Mr. Harris is no longer with Atlantic Richfield, so future correspondence need not be addressed to him. Thank you for EPA’s attention to this matter. Please call me at (406) 491-7132 with any questions. Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Cc: Marc Sarmiento – EPA (sarmiento.marc@epa.gov) Thomas A. Mariani – US DOJ (tom.mariani@usdoj.gov) Ron Halsey, Atlantic Richfield Company (ronald.halsey@bp.com) Nathan Block, Atlantic Richfield Company (nathan.block@bp.com) Lucas Satterlee, Davis Graham & Stubbs LLP (lucas.satterlee@dgslaw.com) Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager October 5, 2023 Page 2 File: RMO (Carr Fork) Carr Fork.110.1 January 26, 2022 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR US Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: IS&R/Carr Fork Site-2022 Groundwater Sampling Report Dear Ken: Atlantic Richfield Company is submitting the enclosed 2022 Annual Groundwater Sampling Report for the IS&R former NPL Site located in Tooele County, UT. Please call me at (406) 491-7132 or Ryan Anderson at (801) 972-6222 with any questions. Sincerely, Steve M. Ferry Atlantic Richfield Company Cc: Stanley Christensen – EPA Erin Agee – EPA Tony Howes – UDEQ (email) Bryan Slade – TCHD (email) Ryan Anderson – Anderson Engineering (email) Ron Halsey -Atlantic Richfield (email) Lucas Satterlee – Davis Graham & Stubbs LLP (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager March 9, 2023 Delivered via e-mail Ken Wangerud International Smelting & Refining Remedial Project Manager Superfund Remedial Section, 8 EPA-SR US Environmental Protection Agency, Region VIII 1595 Wynkoop Street Denver, CO 80202-1129 Re: IS&R/Carr Fork Site-2022 Annual Inspection and Maintenance Report Dear Ken: Atlantic Richfield Company is submitting the enclosed 2022 Annual Inspection and Maintenance Report for the IS&R former NPL Site located in Tooele County, UT. Please call me at (406) 491-7132 or Ryan Anderson at (801) 972-6222 with any questions. Sincerely, Steve M. Ferry Atlantic Richfield Company Cc: Stanley Christensen – EPA Erin Agee – EPA Tony Howes – UDEQ (email) Bryan Slade – TCHD (email) Ryan Anderson – Anderson Engineering (email) Ron Halsey -Atlantic Richfield (email) Lucas Satterlee – Davis Graham & Stubbs LLP (email) Nathan Block – BP (email) File: RMO (Carr Fork) Carr Fork.110.1 Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager IS&R Ferry, Steve M <Steve.Ferry@bp.com> Fri 9/1/2023 11:19 AM To: Ken Wangerud <wangerud.ken@epa.gov> Ken, It was great to talk to you today. Look forward to meeng you in person on site in October. There will likely be maintenance work being implemented in October associated with idenfied bare areas. As we discussed, Atlanc Richfield Company will have the crews do XRF on a poron of the RR grade within the Conservaon Easement Area so we can discuss during your site visit. Please go ahead and schedule a visit and let me know and I will make arrangements to meet you in the field. Also please let us know if you need any addional informaon from Atlanc Richfield Company concerning the 5-year Review recommendaons. Hope you have a great weekend! Steve '. CERTIFIED – RETURN RECEIPT REQUESTED February 13, 2024 Office of the Mayor Tooele City 90 North Main Tooele, UT 84074 Re: Tooele Valley Railroad Grade Environmental Covenant Dear Mayor Winn: Tooele City is party to an Environmental Covenant with the United States Environmental Protection Agency (EPA), Utah Department of Environmental Quality (UDEQ), and Atlantic Richfield Company (Atlantic Richfield). The Environmental Covenant is recorded as a document of record for Tooele City’s Tooele Valley Railroad Grade property. This notification of the Environmental Covenant is being provided as a reminder to affected landowners along the Tooele Valley Railroad Grade jointly by EPA, UDEQ, and Atlantic Richfield. The primary purpose of the Environmental Covenant is to provide long-term institutional controls to protect the Tooele Valley Railroad Grade remediation. The intent of the Environmental Covenant is to provide use limitations, development restrictions and protect the Clean-up Work previously conducted on the property. For additional details, please see the copy of the Environmental Covenant enclosed with this letter for your convenience. If you have any questions about the Environmental Covenant, please contact myself or Ryan Anderson of Anderson Engineering Company, Inc (801-972-6222). Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager February 13, 2024 Page 2 Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Enclosures: Attachment A: Tooele Valley Railroad Environmental Covenant cc: Ken Wangerud - EPA Tony Howes – UDEQ Nathan Block - BP Brian Slade – Tooele County Health Department Jared Hall – Tooele County Planning and Zoning Department Attachment A Tooele Valley Railroad Environmental Covenant CERTIFIED – RETURN RECEIPT REQUESTED February 13, 2024 Zions Farms, L.C. PO Box 716 Tooele, UT 84074 Re: Tooele Valley Railroad Grade Environmental Covenant Dear Zions Farm L.C.: Zions Farms, L.C. is party to an Environmental Covenant with the United States Environmental Protection Agency (EPA), Utah Department of Environmental Quality (UDEQ), and Atlantic Richfield Company (Atlantic Richfield). The Environmental Covenant is recorded as a document of record for Zions Farms’ Tooele Valley Railroad Grade property. This notification of the Environmental Covenant is being provided as a reminder to affected landowners along the Tooele Valley Railroad Grade jointly by EPA, UDEQ, and Atlantic Richfield. The primary purpose of the Environmental Covenant is to provide long-term institutional controls to protect the Tooele Valley Railroad Grade remediation. The intent of the Environmental Covenant is to provide use limitations, development restrictions and protect the Clean-up Work previously conducted on the property. For additional details, please see the copy of the Environmental Covenant enclosed with this letter for your convenience. If you have any questions about the Environmental Covenant, please contact myself or Ryan Anderson of Anderson Engineering Company, Inc (801-972-6222). Atlantic Richfield Company 317 Anaconda Rd Butte, MT 59701 Office: (406) 782-9964 Cell: (406) 491-7132 e-mail: steve.ferry@bp.com Steve M. Ferry Liability Manager February 13, 2024 Page 2 Sincerely, Steve M. Ferry Liability Manager Atlantic Richfield Company Enclosures: Attachment A: Tooele Valley Railroad Environmental Covenant cc: Ken Wangerud - EPA Tony Howes – UDEQ Nathan Block - BP Brian Slade – Tooele County Health Department Jared Hall – Tooele County Planning and Zoning Department Attachment A Tooele Valley Railroad Environmental Covenant 2023 Annual Inspection and Maintenance Report IS&R/Carr Fork Site APPENDIX F: Lab Analytical Soil Sampling Reports ANALYTICAL REPORT November 02, 2023 BPLAMP - Anderson Engineering Sample Delivery Group:L1671121 Samples Received:10/27/2023 Project Number: Description:TSR TVRR Report To:Ryan Anderson 2053 North Hillcrest Rd. Saratoga Springs, UT 84045 Entire Report Reviewed By: November 02, 2023 [Preliminary Report] Jared Starkey Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 1 of 16 November 02, 2023 Jared Starkey Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 1 of 16 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 TVRR M-037-23100 L1671121-01 5 TVRR M-015-23100 L1671121-02 6 TVRR M-049-23100 L1671121-03 7 TVRR M-051-23100 L1671121-04 8 TVRR U-021-23100 L1671121-05 9 TVRR U-016-23100 L1671121-06 10 TVRR M-007-23100 L1671121-07 11 Qc: Quality Control Summary 12 Total Solids by Method 2540 G-2011 12 Metals (ICP) by Method 6010B 13 Gl: Glossary of Terms 14 Al: Accreditations & Locations 15 Sc: Sample Chain of Custody 16 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 2 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 2 of 16 SAMPLE SUMMARY Collected by Collected date/time Received date/time TVRR M-037-23100 L1671121-01 Solid 10/04/23 14:49 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:06 DJS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 5 10/30/23 16:01 11/01/23 23:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR M-015-23100 L1671121-02 Solid 10/04/23 13:00 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:15 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR M-049-23100 L1671121-03 Solid 10/05/23 10:51 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:18 DJS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 5 10/30/23 16:01 11/01/23 23:59 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR M-051-23100 L1671121-04 Solid 10/05/23 10:58 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:21 DJS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 5 10/30/23 16:01 11/02/23 00:02 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR U-021-23100 L1671121-05 Solid 10/05/23 12:33 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:24 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR U-016-23100 L1671121-06 Solid 10/05/23 12:16 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:27 DJS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 5 10/30/23 16:01 11/02/23 00:05 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time TVRR M-007-23100 L1671121-07 Solid 10/04/23 11:20 10/27/23 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2160438 1 10/31/23 09:36 10/31/23 09:43 CMK Mt. Juliet, TN Metals (ICP) by Method 6010B WG2160205 1 10/30/23 16:01 11/01/23 02:30 DJS Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 3 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 3 of 16 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jared Starkey Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 4 of 16 Jared Starkey Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 4 of 16 SAMPLE RESULTS - 01 L1671121 TVRR M-037-23100 Collected date/time: 10/04/23 14:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 405 0.545 2.11 1 11/01/2023 02:06 WG2160205 Lead 12600 1.09 2.63 5 11/01/2023 23:56 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 5 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 5 of 16 SAMPLE RESULTS - 02 L1671121 TVRR M-015-23100 Collected date/time: 10/04/23 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.5 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 823 0.566 2.19 1 11/01/2023 02:15 WG2160205 Lead 10300 0.227 0.546 1 11/01/2023 02:15 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 6 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 6 of 16 SAMPLE RESULTS - 03 L1671121 TVRR M-049-23100 Collected date/time: 10/05/23 10:51 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.1 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 1250 0.595 2.30 1 11/01/2023 02:18 WG2160205 Lead 38400 1.19 2.87 5 11/01/2023 23:59 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 7 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 7 of 16 SAMPLE RESULTS - 04 L1671121 TVRR M-051-23100 Collected date/time: 10/05/23 10:58 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.7 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 1740 0.578 2.23 1 11/01/2023 02:21 WG2160205 Lead 25100 1.16 2.79 5 11/02/2023 00:02 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 8 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 8 of 16 SAMPLE RESULTS - 05 L1671121 TVRR U-021-23100 Collected date/time: 10/05/23 12:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 74.4 0.561 2.17 1 11/01/2023 02:24 WG2160205 Lead 907 0.225 0.541 1 11/01/2023 02:24 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 9 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 9 of 16 SAMPLE RESULTS - 06 L1671121 TVRR U-016-23100 Collected date/time: 10/05/23 12:16 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.7 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 704 0.559 2.16 1 11/01/2023 02:27 WG2160205 Lead 25600 1.12 2.70 5 11/02/2023 00:05 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 10 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 10 of 16 SAMPLE RESULTS - 07 L1671121 TVRR M-007-23100 Collected date/time: 10/04/23 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.6 1 10/31/2023 09:43 WG2160438 Metals (ICP) by Method 6010B Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 3.93 0.536 2.07 1 11/01/2023 02:30 WG2160205 Lead 23.0 0.215 0.517 1 11/01/2023 02:30 WG2160205 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 11 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 11 of 16 QUALITY CONTROL SUMMARYWG2160438 Total Solids by Method 2540 G-2011 L1671121-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3993459-1 10/31/23 09:43 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1671121-06 Original Sample (OS) • Duplicate (DUP) (OS) L1671121-06 10/31/23 09:43 • (DUP) R3993459-3 10/31/23 09:43 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.7 92.8 1 0.124 10 Laboratory Control Sample (LCS) (LCS) R3993459-2 10/31/23 09:43 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 12 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 12 of 16 QUALITY CONTROL SUMMARYWG2160205 Metals (ICP) by Method 6010B L1671121-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3993797-1 11/01/23 01:03 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R3993797-2 11/01/23 01:05 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 88.5 88.5 80.0-120 Lead 100 87.0 87.0 80.0-120 L1670609-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1670609-01 11/01/23 01:09 • (MS) R3993797-5 11/01/23 01:18 • (MSD) R3993797-6 11/01/23 01:21 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 4.27 98.3 90.7 91.1 83.8 1 75.0-125 7.99 20 Lead 103 7.53 102 95.0 91.3 84.8 1 75.0-125 6.78 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 13 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 13 of 16 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn)A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr)This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section foreach sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates andtimes of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 14 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 14 of 16 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 09:28 15 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: BPLAMP - Anderson Engineering L1671121 11/02/23 11:15 15 of 16