MANDATORY PRE-BID MEETING ON AUGUST 6, 2025 AT 10:00AM Pre-Bid Location: The project site does not have a physical address. The project site is located across from 42989 Cream Ridge Road, Lisbon, Ohio 44432. The Lat Long for the project site access drive is: 40.742501, -80.689294 Project Name: Cream Ridge Road Highwall Project Description: The project site consists of a dangerous highwall, associated hazardous waterbody, and steep spoil piles. The features are located on property owned byPeters Farm LLC. The dangerous highwall is wishbone shaped, is approximately 3,025 feet in total length, has an average height of approximately 46 feet above the surface of the impoundment, and a maximum height of approximately 60 feet. The impoundment has insufficient discharge structures and steep side slopes. The highwall is located within 100 feet of Beaver Creek State Park. A cabin is located on top of a steep spoil pile, within 10 feet of the edge, and approximately 40 feet above the hazardous water body. Numerous camping sites have been constructed above the highwall and on top of the spoil piles. The Boy Scouts of America regularly utilize the property for scouting activities. The intent of this reclamation project is to establish a safe and maintainable site by backfilling the highwall, and the associated impoundment, with existing spoil to eliminate the safety concerns. The proposed construction will also provide positive drainage, safe and maintainable side slopes, and engineered basin discharge structures. Access the project site via the landowners’ gated access drive. The existing unimproved drive entrance will be excavated, and a construction entrance established within the first 70 feet of the drive. Construct a staging area adjacent to the access road. Perform the earthwork/backfilling of the highwall after clearing and grubbing, and impoundment dewatering, have been performed. Provide positive drainage by constructing rock lined and grass lined channels to convey drainage toward the sediment basin. Install an engineered catch basin riser and outlet pipe to regulate the sediment basin discharge through the earthen embankment. Construct a rock lined channel at the end of the outlet pipe for drainage to pass through before entering the natural drainage course. Once grading has been approved, lime the disturbed areas. Perform cross ripping of reforestation areas. Perform standard revegetation of non-reforestation areas. Perform reforestation revegetation of reforestation areas. During the maintenance period of the project, plant tree and brush seedlings during the specified time frame. Dewater the sediment basin and remove all accumulated sediment. Remove the temporary sediment control structures and convert the sediment basin into a permanent pond. Once grading has been approved, lime, fertilize, seed, and mulch the disturbed area. Provide all labor, materials, and equipment necessary to perform the work shown on the Contract Drawings and conforming to these specifications. Ensure site safety for both the work crew and the public. Project Location: The project site is in the central portion of Columbiana County, southeast of the village of Lisbon, in Elk Run Township. The project site does not have a physical address. The project site is located across from 42989 Cream Ridge Road, Lisbon, Ohio 44432. The Lat Long for the project site access drive is: 40.742501, -80.689294 Major work items include: 1. Survey to establish work limits and set control points. 2. Maintaining traffic. 3. Mobilization. 4. Construction of construction entrance and staging area. 5. Clearing and grubbing of the northwest portion of the project site. 6. Installation of sediment control devices in the northwest portion of the project site. 7. Dewatering as required. 8. Earthwork/backfilling to grade the northwest portion of the project site and construct grass lined channel GLC-1. 9. Installation of 15”Ø and 24”Ø culverts. 10. Temporary seeding of the northwest portion of the project as required by SWPPP. 11. Clearing and grubbing of the northeast portion of the project site. 12. Installation of sediment control devices in the northeast portion of the project site. 13. Dewatering as required. 14. Earthwork/backfilling to grade the northeast portion of the project site and construct grass lined channel GLC-2. 15. Temporary seeding of the northeast portion of the project as required by SWPPP. June 2025 CL-El-37 Project Description 16. Clearing and grubbing of the south-central portion of the project site. 17. Installation of sediment control devices in the south-central portion of the project site. 18. Dewatering as required. 19. Earthwork/backfilling to grade the south-central portion of the project site and construct grass lined channel GLC-3 and rock lined channel RLC-1. 20. Installation of remaining 24”Ø culverts and splash pad SP-1. 21. Installation of outlet pipe. 22. Construction of rock lined channel RLC-2 and splash pad SP-2. 23. Dewatering as required. 24. Installation of 60”Ø reinforced precast manhole basin riser. 25. Installation of trash/debris and anti-vortex trash rack at the riser structure. 26. Installation of temporary sediment control at basin riser. 27. Construction of detention basin and emergency spillway. 28. Temporary seeding of the south-central portion of the project site as required by SWPPP. 29. Installation of remaining sediment control devices. 30. Debris removal and disposal. 31. Tire removal and disposal. 32. As-built survey of the detention basin. 33. Application of lime to disturbed areas to be revegetated and reforested. 34. Soil preparation cross ripping of reforestation areas. 35. Standard revegetation of non-reforestation areas. 36. Reforestation revegetation of reforestation areas. During the Maintenance Period 37. Planting of tree and brush seedlings during the specified time frame. 38. Removal and proper disposal of temporary sediment control devices and accumulated sediment. 39. Revegetation of areas disturbed during the removal of the temporary sediment control devices and accumulated sediment. 40. Top-dressing of aggregate surfaces to remain. Project Location: The project site is located across from 42989 Cream Ridge Road, Lisbon, Ohio 44432. The Lat Long for the project site access drive is: 40.742501, -80.689294 Pre-bid Meeting Location (Mandatory): 42989 CREAM RIDGE RD., LISBON, OH 44432 Engineer's Estimate: $1,891,744.00

MANDATORY PRE-BID MEETING ON JUNE 11, 2025, AT 10:00 AM Pre-bid Meeting Location (Mandatory): 9900 Brick Church Rd., Cambridge, OH 43725 Project Name: UPC South 2025 Project Description: The Ohio Department of Natural Resources, Division of Mineral Resources Management (DMRM) is seeking bids for small, abandoned mine land emergency reclamation projects grouped together under one Unit Price Contract (UPC). Thirty Ohio coal bearing counties will be divided into three geographic regions (East, North & South) with each region covered by a separate Unit Price Contract. The DMRM will conduct one mandatory pre-bid meeting which shall cover all three regions. Bid opening will be 14 days after the pre-bid. The South 2025 Emergency Unit Price Contract shall extend for one year running from July 1, 2025 (start date subject to change) to June 30, 2026 and will include abandoned mine land emergency reclamation projects identified in the following counties: Athens, Gallia, Hocking, Jackson, Lawrence, Meigs, Morgan, Muskingum, Perry, Scioto and Vinton. This UPC shall include smaller emergency projects that include, but are not limited to, pothole subsidence, small gob fires, small landslides, and investigations for future projects. These projects will stem from landowner complaints. The project sites are often in residential areas with tight access. No specific project site exists at this time. The line items listed on the Bid Schedule are intended to cover approximately twelve (12) small projects based on historic workload. The UPC shall involve various types of small projects that require use of materials and methods provided for in the Bid Schedule. Each small project shall be initiated by a work order. The work order shall include the project name, project number, address of work, list of landowners, a description of the work to be completed, and an estimate of the quantities to be used. Engineer's Estimate: $172,600.00 Project Locations: Athens, Gallia, Hocking, Jackson, Lawrence, Meigs, Morgan, Muskingum, Perry, Scioto and Vinton. Pre-bid Meeting Location (Mandatory): 9900 Brick Church Rd., Cambridge, OH 43725

MANDATORY PRE-BID MEETING ON JUNE 11, 2025, AT 10:00 AM Pre-bid Meeting Location (Mandatory): 9900 Brick Church Rd., Cambridge, OH 43725 Project Name: UPC East 2025 Project Description: The Ohio Department of Natural Resources, Division of Mineral Resources Management (DMRM) is seeking bids for small, abandoned mine land emergency reclamation projects grouped together under one Unit Price Contract (UPC). Thirty Ohio coal bearing counties will be divided into three geographic regions (East, North & South) with each region covered by a separate Unit Price Contract. The DMRM will conduct one mandatory pre-bid meeting which shall cover all three regions. Bid opening will be 14 days after the pre-bid. The East 2025 Emergency Unit Price Contract shall extend for one year running from July 1, 2025 (start date subject to change) to June 30, 2026 and will include abandoned mine land emergency reclamation projects identified in the following counties: Belmont, Guernsey, Harrison, Jefferson, Monroe, Noble and Washington. This UPC shall include smaller emergency projects that include, but are not limited to, pothole subsidence, small gob fires, small landslides, and investigations for future projects. These projects will stem from landowner complaints. The project sites are often in residential areas with tight access. No specific project site exists at this time. The line items listed on the Bid Schedule are intended to cover approximately twelve (12) small projects based on historic workload. The UPC shall involve various types of small projects that require use of materials and methods provided for in the Bid Schedule. Each small project shall be initiated by a work order. The work order shall include the project name, project number, address of work, list of landowners, a description of the work to be completed, and an estimate of the quantities to be used. Engineer's Estimate: $173,600.00 Project Location: Belmont, Guernsey, Harrison, Jefferson, Monroe, Noble and Washington. Pre-bid Meeting Location (Mandatory): 9900 Brick Church Rd., Cambridge, OH 43725

MANDATORY PRE-BID MEETING ON APRIL 10, 2025, AT 10:00AM PRE-BID MEETING LOCATION: Jefferson County, OH. Lat: 40.1600346°, Long: -80.7102020° Project Name: Yorkville Water Tower Maintenance 2024 Project Description: Yorkville Water Tower Maintenance 2024 reclamation project (iron precipitate cleanup maintenance) is located at previous project site involving abandoned underground mine discharge in Village of Yorkville, Jefferson County, OH. Lat: 40.1600346°, Long: -80.7102020°. Fabriform channel was constructed as part of a previous reclamation project for mine drainage in the mid 1990’s. Iron precipitate from mine drainage has accumulated in fabriform channel since previous cleaning in 2013 almost completely filling channel at some locations. Purpose and intent of this project is to reestablish flow capacity within existing drainage channels and pipes. Maintenance involves clearing and grubbing, dewatering removal of iron precipitate deposited in fabriform channel(s), earth/rock lined channel(s) and pvc half-pipe(s) from mine drainage and site restoration. Contractors must prove that they have successfully performed work that is technically and mechanically equivalent in scope of these specifications. Contractors are required to submit a list of comparable jobs completed in the last five (5) years with bid package. Failure to furnish this information may be cause for rejection of the bid. In addition, contractors shall prove they have appropriate equipment to perform work. Major work items include: 1. Mobilization including fence removal and storage to allow access for personnel and equipment. 2. Clearing and grubbing 3. Installation of precipitate trapping features to prevent iron precipitate from entering culvert under County Road 2. 4. Cleanout of approximately 730 linear feet of fabriform channel(s), earth/rock lined channel(s) and pvc half-pipes 5. Disposal of approximately 360 tons of iron precipitate and debris at approved licensed facility. 6. Site restoration including repair of ruts and holes, seeding and mulching of maintenance area, if needed.    Re-erect fence previously removed to permit access to fabriform channel. The following ODNR-DMRM staff are involved with this project and may becontacted with any questions or concerns.             Project Engineer:        Tom Wiley                   330-556-6805             Project Officer:            Alicia Davis                 330-556-6794 Engineer's Estimate: $149,350.00 Project Location: Jefferson County, OH. Lat: 40.1600346°, Long: -80.7102020° Pre-bid Meeting Location (Mandatory): Lat: 40.1600346°, Long: -80.7102020°

MANDATORY PRE-BID MEETING ON December 18, 2024 AT 10:00AM PRE-BID MEETING LOCATION: Latitude: 39.71767 & Longitude: -82.17066 Project Name: Gosline H2Ohio AMD Project Description: Project Description: The Gosline H2Ohio AMD project is located within Gosline Headwaters sub basin, which is part of the Upper Rush Creek Watershed (HUC: 05030204-020). The project area is located on Township Road 497 in Perry County Ohio. Surface mining, deep mining, and coal processing in the headwaters of the Rush Creek watershed have resulted in exposure of substantial amounts of mine spoils and deposition of coal refuse (primarily low-grade coal mixed with shale, sandstone, and pyritic spoils). Oxidation of these materials causes acid mine drainage (AMD) and, along with runoff from abandoned mine sites, results in severe impairment of water quality in Rush Creek. An Acid Mine Drainage Abatement and Treatment Plan was completed in 2009 and identified the un-named tributary where the project is located as a significant acid and metal loader to the Gosline Headwaters sub basin, and thus Upper Rush Creek. The overall goal of this project is to reduce acid and metal loadings in the un-named tributary where the project is located by reducing the amount and retention time of water coming into contact with acid forming materials through standard reclamation methods.  Specifically, this project includes the following construction components designed to meet the project goal: * Regrading approximately 16 acres of barren mine spoil and capping it with off-site soil. The area will be seeded to establish vegetation. Rock channels and aggregate drains will be installed to create positive drainage and stabilize the site. Downstream water will be directed to an existing area with hydrophytic vegetation, where limestone berms will be installed to create residence time and allow metals to precipitate before flowing into Upper Rush Creek mainstem.  * Removal of approximately 1 acre of an open water acid mine drainage pit impoundment that is a result of past mining activities. This component of the project will also include the backfilling of the adjacent highwall. Positive water drainage will be created through aggregate drains, ditching, and/ or rock channels as needed, and will reduce the formation of AMD. The drainage technique(s) will be field directed once the pits are drained. The remaining flow will be directed to an existing low lying area, allowing metals to precipitate before flowing into Upper Rush Creek mainstem. Engineer's Estimate: $3,035,625.00 Project Location: Perry County Pre-bid Meeting Location (Mandatory): On-Site, Latitude: 39.71767 & Longitude: -82.17066