Cloverleaf Specifications 02.04.21.pdf

ILLINOIS DEPARTMENT OF NATURAL RESOURCES (IDNR)

PROJECT REQUIREMENTS & SPECIFICATIONS

Project Name: Clover Leaf No. 4 Mine Shaft Remediation Project Number: AML-GMmE-2005 Project Location: The Clover Leaf No. 4 Mine main shaft and air shaft are located on the premises of U.S. Minerals, located at 796 Cips Trail, Coffeen. The shafts are located in the Southeast Quarter of the Northeast Quarter, Section 3, Township 7 North, Range 3 West of the 3rd P.M., Montgomery County.

Project Requirements:

1) Pre-Bid Meeting No pre-bid meeting is scheduled.

2) Illinois Bid Buy Procurement System

All contractors planning to submit a bid are required to register in BidBuy. Registration must be completed prior to the bid submittal date and time.

Please follow this link to login: https://www.bidbuy.illinois.gov/bso/ For help with your login or registration contact BidBuy Vendor Services by phone 866-455-2897 or email il.bidbuy@illinois.gov For online help documents and videos:

https://www.illinois.gov/cpo/PathwayToProcurement/Pages/BidBuy.aspx

3) OSMRE Applicant Violator System The successful bidder will be required to complete an Abandoned Mine Land (AML) Contractor Information Form (OMB 1029-0119) certifying or updating information in the Office of Surface Mining Reclamation and Enforcement (OSMRE) Applicant Violator System (AVS). If the successful bidder is not already registered in AVS the contractor shall provide business ownership information as indicated on the form. This form shall be completed and executed prior to commencement of the work. If a contractor is deemed ineligible for performing AML reclamation work the next lowest bidder may be utilized, at the discretion of the IDNR Project Manager, to complete the work.

4) Coordination of Work Activities All work activities and entry to the site must be coordinated with the IDNR Project Manager.

5) Contractor’s Licensing and/or Certifications Contractor shall be responsible for compliance with all applicable contractor and trades person licensing with the appropriate State agency.

6) Duration Quotes shall be good for ninety (90) calendar days after the submittal date, or for an extended period https://www.bidbuy.illinois.gov/bso/ mailto:il.bidbuy@illinois.gov https://www.illinois.gov/cpo/PathwayToProcurement/Pages/BidBuy.aspx of time, if agreed to in writing by the Contractor and IDNR.

7) Prevailing Wage Rates This contract [or agreement] calls for the construction of a “pubic work” within the meaning of the Illinois Prevailing Wage Act, 820 ILCS 130.01 et seq. (“the Act”). The Act requires contractors and subcontractors to pay laborers, workers and mechanics performing services on public works projects no less than the current “prevailing rate of wages” (hourly cash wages plus amount of fringe benefits) in the county where the work is performed. The Illinois Department of Labor (IDOL) publishes the prevailing wage rates on its website at https://www2.illiois.gov/idol/laws-rles/conmed/pages/rates/aspx. IDOL revises the prevailing wage rates and contractor/subcontractor has an obligation to check the IDOL’s web site for revisions to prevailing wage rates. For information regarding current prevailing wage rates, please refer to the IDOL’s website. All contractors and subcontractors rendering services under this contract must comply with all requirements of the Act, including but not limited to, all wage requirements and notice and record keeping duties.

8) Employment of Public Workers on Public Works In a period of excessive unemployment rates, State contractors (1) constructing or building any public works or (2) cleaning-up and disposing on-site of hazardous waste, and that clean-up or on-site disposal is funded or financed in whole or in part with State funds or funds administered by the State, are required to employ at least 90% Illinois laborers on such project. For projects involving clean-up and on-site disposal of hazardous waste, emergency response or immediate removal activities are excluded. This requirement applies to all labor whether skilled, semi-skilled or unskilled, whether manual or non- manual.

A period of excessive unemployment rates is defined as any month immediately following two consecutive calendar months during which the level of unemployment in the State of Illinois has exceeded 5% as measured by the United States Bureau of Labor Statistics in its monthly publication of employment and unemployment figures.

Any public works project financed in whole or in part by federal funds administered by the State of Illinois is covered under the provisions of this requirement, to the extent permitted by any applicable federal law or regulation. 30 ILCS 570.

Contractors may receive an exception from this requirement by submitting a request and supporting documents certifying that Illinois laborers are either not available or are incapable of performing the particular type of work involved. The certification must: (a) be submitted to the agency within the first quarter of the Contract Term; (b) provide sufficient support that demonstrates the exception is met;

(c) be signed by an authorized signatory of the contractor; and (d) be approved by the agency.

9) Certified Payroll State law 820 ILCS 130/5 requires all contractors and sub-contractors working on state construction projects to submit certified payroll records to the IDNR. The payroll records must include all workers employed by contractors on the project.

In accordance with 820 ILCS 130/5, the contractor and sub-contractor(s) shall make and keep, for a period of 5 years from the date of the last payment made on or after January 1, 2014 (the effective date of Public Act 98-328) on a contract or subcontract for public works, records of all laborers, mechanics, and other workers employed by them on the project.

https://www2.illiois.gov/idol/laws-rles/conmed/pages/rates/aspx https://www2.illiois.gov/idol/laws-rles/conmed/pages/rates/aspx

No later than the 15th day of each calendar month, the contractor shall file a certified payroll for the immediately preceding month with the IDNR.

10) Small Business Set-Aside N/A

11) Insurance Contractor shall, at all times during the term of this contract and any renewals or extensions, maintain and provide a Certificate of Insurance naming the IDNR and property owner as additionally insured for all required bonds and insurance. Certificates may not be modified or canceled until at least thirty

(30) days’ notice has been provided to the State. Contractor shall provide: (a) General Commercial Liability insurance in the amount of $1,000,000 per occurrence (Combined Single Limit Bodily Injury and Property Damage) and $2,000,000 Annual Aggregate; (b) Auto Liability, including Hired Auto and Non-owned Auto (Combined Single Limit Bodily Injury and Property Damage), in amount of $1,000,000 per occurrence; and (c) Worker’s Compensation Insurance in the amount required by law.

Insurance shall not limit Contractor’s obligation to indemnify, defend, or settle any claims.

12) Construction Bond Pursuant to the Public Construction Bond Act (30 ILCS 550/), a construction bond shall be required if the project cost exceeds $50,000.

13) Permits and Licenses Permits and licenses necessary for the execution of the work shall be secured and paid for by the Contractor.

14) Utilities Before starting excavation, establish location and extent of underground utilities occurring in the work area. Contractor shall contact Joint Utility Locating Information for Excavators (J.U.L.I.E.) 800- 892-0123.

15) Highway Permits The Contractor is responsible for contacting the appropriate County Engineer and/or other appropriate local officials concerning the proposed work activities on the project as they may relate to use of the County and local road system. Coordination of any activities of concern to the County or Township shall be the responsibility of the Contractor. Special attention shall be given to load limits and seasonal restrictions.

16) New Products Unless otherwise specifically provided in the contract documents, all materials, equipment and products incorporated in the work under the contract shall be new and of a suitable grade for the purpose intended.

17) Steel Products Any steel product(s) used or supplied in the performance of this contract shall be manufactured or produced in the United States, in accordance with the Steel Products Procurement Act, unless a https://ipg.vendorreg.com/ waiver is granted by IDNR (30 ILCS 565/).

18) Specified Materials Quotes shall be based on providing all products exactly as required by the project specifications.

Contractor may select from the list of acceptable manufacturers, or, for products specified only by reference or performance standards, select any product which meets or exceeds the specified standards, by any manufacturer, subject to the approval of the IDNR.

19) Final Cleaning Contractor shall clean-up all work related debris and construction materials and properly dispose off-site. The Contractor shall repair and otherwise make good any damage caused by the work and leave the premises in the equivalent of the original condition.

20) Warranty The Contractor warrants that all work provided under the contract will be in conformance with the contract and free from defects in workmanship, materials, and equipment for a period of one year from the goods acceptance date. See Section B. Project Instructions and Notes, for any extended warranties that may apply.

21) Change Orders Change order shall be defined as a change in a contract term, other than as specifically provided for in the contract which authorizes or necessitates any increase or decrease in the cost of the contract or the time for completion. A change order shall be executed by the State agency and vendor evidencing the change. All changes shall be approved by the CPO, or designee, and be accompanied by a written determination that the circumstances said to necessitate the change in performance were not reasonably foreseeable at the time the contract was signed and the change is germane to the original contract as signed. Change orders that increase or decrease the cost of a contract or an estimated contract by a total of $10,000 or more or the time of completion by more than 30 days shall be published on the Illinois Procurement Bulletin, pursuant to Section 15-25 of the Code and documented pursuant to Section 33E-9 of the Criminal Code of 2012, in advance of the execution of the change order.

21) Payment After successful completion of the work and compliance with the requirements set out above, the successful bidder shall submit an invoice for payment. After approval of the invoice, it shall be forwarded to the Illinois Comptroller’s office for payment, usually within 60 days. Payment terms contained in Contractor’s invoice(s) shall have no force or effect.

22) Request for Quote Quotes must be submitted on BidBuy. See Section 2 above regarding BidBuy website.

Submittal Date and Time:

Bids are due by 2:00 p.m. CST on Thursday, February 11, 2021.

23) Award The IDNR is not obligated to award a contract pursuant to this Request.

24) Starting Date Work on the project shall commence within 15 calendar days of execution of the contract. The Contractor shall contact the IDNR within the 15-day period to schedule a preconstruction conference prior to the beginning of actual construction operations.

25) Progress and Liquidated Damages All work shall proceed in accordance with a Progress Schedule as provided by the Contractor in accordance with Article 108.02 of the Standard Specifications. The progress schedule shall consider the following items.

Potential critical habitat for the Indiana bat and northern long-eared bat may occur within the project area. Any tree clearing associated with this project is to be completed prior to April 1 or after October 14 to avoid direct impacts to these species.

Establishment of vegetation is critical to the success of this project. Seeding is to be performed from April 1 to June 15, or August 1 to November 1, or as agreed to by the IDNR Project Manager.

Work is to be substantially completed by the substantial completion date. All remaining work, including final clean-up, removal of equipment, final inspection, any alterations, repair, remedial or holdover work, reseeding, and submission of the final pay request shall be completed prior to the contract ending date. The IDNR may assess liquidated damages until work is completed, as provided in Article 108.09 of the Standard Specifications.

26) Substantial Completion and Contract Ending Date The work shall be substantially completed within 90 days of execution of the contract. This Contract shall end 180 days after execution of the contract.

27) Responsibility of the Contractor During the performance of this construction contract, the Contractor shall not enter into any agreement to provide additional work for or at the direction of the owner(s) of the property where the reclamation shall take place, or with the owner(s) of adjacent or nearby property, without the prior written approval of the IDNR. The Contractor agrees that any additional work to be performed for such owners, after approval by the IDNR, will not be permitted to interfere with the scheduled operations or planned reclamation results specified for the reclamation project. The Contractor further agrees to indemnify and hold harmless the IDNR against any and all claims for personal injury or property damage arising out of or occasioned by the additional work.

28) Field Engineering Requirements:

The Contractor shall provide and pay for all field engineering services required for the project, including:

1. Lay-out and field stake the project construction limits, unless otherwise specified on the plans, to the satisfaction of the IDNR Project Manager.

2. Survey work required in execution of the project.

Survey Reference Points:

One existing basic vertical control point will be identified by the IDNR Project Manager for the Contractor's use. The Contractor shall locate and protect the control point prior to starting site work, and preserve this point during construction. In addition, the Contractor shall establish a minimum of three control points at each shaft location for the purpose of identifying the center of each shaft.

These control points are to be maintained throughout the construction and are to be used to set each shaft marker.

29) Owner Occupancy Owners will occupy premises during entire construction period for conduction of their normal operations. The Contractor shall cooperate with Owners in scheduling operations to minimize conflict and to facilitate Owner's usage.

30) Temporary Controls A. Dust and Mud Control:

The Contractor shall provide positive methods and apply dust control materials to minimize raising dust from construction operations; and provide positive means to prevent air-borne dust from dispersing into the atmosphere.

B. Debris Control:

The Contractor shall initiate and maintain a specific program to prevent accumulation of debris at the construction site, storage and parking areas, or along access roads and haul roads.

C. Pollution Control:

The Contractor shall provide methods, means and facilities required to prevent contamination of soil, water or atmosphere by the discharge of noxious substances and sediments from construction operations. All projects involving the disturbance of 1 or more acres are covered by NPDES General Permit Number ILR100000, issued by the Illinois Environmental Protection Agency (IEPA) for storm water discharges from construction site activities. The Contractor shall be required to comply with the provisions of the General Permit and must become a party to the Department of Natural Resources; Office of Mines and Minerals; Division of Abandoned Mined Lands Reclamation Storm Water Pollution Prevention Plan (See Sample Document following the Special Provisions).

The Contractor shall prevent harmful substances, such as acid water, from entering public or private waters. If treatment of acid water is determined necessary by the IDNR Project Manager and it is not specified within these special provisions, any water treated will be paid for in accordance with Article 109.04 of the Standard Specifications. The Contractor is liable for restoration of water quality and aquatic life if adversely affected by his/her actions. The Contractor shall maintain all such systems throughout the duration of the project.

The Contractor shall provide systems for control of atmospheric pollutants to prevent toxic concentrations of chemicals; to prevent harmful dispersal of pollutants into the atmosphere; and to comply with all permit requirements that may apply.

The Contractor must notify the IDNR Project Manager immediately if buried wastes, liquid waste vessels or other potentially harmful materials are encountered. Necessary precautions should be taken to safeguard the area and to protect workers and the public until further directions are provided by the Engineer.

Project Specifications:

Those Sections and Articles of the "Standard Specifications for Road and Bridge Construction," adopted April 1, 2016 by the Illinois Department of Transportation (IDOT); as amended and supplemented by the "Supplemental Specifications and Recurring Special Provisions," adopted January 1, 2019 (hereinafter referred to collectively as "Standard Specifications"), that are referenced in these bid documents are incorporated by reference. (The Standard Specifications are available on-line at IDOT’s web site or can be purchased from IDOT.)

In the application of the Standard Specifications to this Contract, references to the Department of Transportation shall be interpreted to mean the Illinois Department of Natural Resources; Office of Mines and Minerals; Abandoned Mined Lands Reclamation Division (AMLRD).

The specifications governing the contract pay items are indicated in the Summary of Quantities on Plan Sheet 2. The following Sections of the IDOT Standard Specifications govern contract work on this project.

SECTION 251 - Mulch

The following Sections of the IDOT Standard Specifications have been modified for this project by the AMLRD and are included below and on the following pages and govern contract work at or on this project.

SECTION 101 - Definition of Terms SECTION 201 - Clearing, Tree Removal and Protection Care and Repair of Existing Plant Material SECTION 215 - Special Excavation SECTION 216 - Mine Opening Filling and Sealing SECTION 250 - Seeding SECTION 666 - Mine Opening Markers SECTION 671 - Mobilization

A test boring has been completed at the project site. A log of this test boring has been presented in the following section of these specifications.

TEST BORING LOGS

AMLRD SUPPLEMENTAL SPECIFICATION FOR

SECTION 101. DEFINITION OF TERMS

Whenever in these specifications or in other contract documents the following terms or pronouns in place of them are used, the intent of meaning shall be interpreted as follows:

101.03 Award. Revise as indicated:

The decision of the Illinois Department of Natural Resources; Office of Mines and Minerals;

Division of Abandoned Mined Lands Reclamation to accept the proposal of the lowest responsible bidder for the work, subject to the execution and approval of a satisfactory contract therefore and bond to secure the performance thereof, and to such other conditions as may be specified or otherwise required by law.

101.14 Department. Revise as indicated:

The Department of Natural Resources of the State of Illinois with its principal offices of business at Springfield.

101.16 Engineer. Revise as indicated:

The Director of the Department of Natural Resources of the State of Illinois; or his authorized representative limited by the particular duties entrusted to him.

101.35 Right of Way. Revise as indicated:

Right of way shall be replaced by construction limits, except when used in conjunction with right of way markers or highways.

101.39 Roadway. Revise as indicated:

Roadway shall be replaced by site. Slope limits of embankments will be replaced by proposed lines and grades.

101.47 Subgrade. Revise as indicated:

The top surface of the mine refuse upon which the cover soil is placed.

101.56 Gob. Add the following:

Coarse textured mine waste material, generally acidic, from a coal cleaning process. This material is composed of rock, shale, pyritic material and varying amounts of coal. The material varies considerably in its moisture content, texture, stable angle of repose and bearing capacity.

101.57 Mine Spoil. Add the following:

A mixture of various soil and rock material as a result of the removal of overburden to expose the coal in surface mining. The material varies considerably in its' moisture content, texture, stable angle of repose and bearing capacity.

101.58 Slurry. Add the following:

A mixture of coal fines and fine coal waste material resulting from a coal cleaning process. This material is composed of water, silts, clays, pyritic material and coal. The material varies considerably in its' moisture content, stable angle of repose, shear strength and bearing capacity.

End of Revisions to SECTION 101.

AMLRD SUPPLEMENTAL SPECIFICATION FOR

SECTION 201. CLEARING, TREE REMOVAL AND PROTECTION CARE AND REPAIR OF EXISTING PLANT

MATERIAL

201.01 Description. Add the following:

(f) Trash and Debris Removal -- Trash and debris removal shall consist of the removal and disposal of all trash and debris that is within the area to be graded inside the construction limits to an approved landfill off-site.

201.09 Disposal of Materials. Replace with the following:

This work shall be done in accordance with Article 202.03 of these Supplemental Specifications.

201.10 Method of Measurement. Delete paragraphs (b) through (d) and replace with the following)

All Clearing, Tree Removal, Protection of Existing Plant Material, Care of Existing Plant Material and Trash and/or Debris Removal that is necessary to perform the grading work within the construction limits shall be classified as SPECIAL CLEARING and will not be measured for payment.

Any of these items associated within the designated areas of Special Excavation shall not be considered here but shall be covered under Section 215 - Special Excavation.

Any special areas of trees within the construction limits to be preserved will be specified in the plans and shall not be removed unless approved by the Engineer.

All trees outside the construction limits shall not be disturbed.

Removed trees and brush shall be chipped (or logged) and hauled off site for disposal or recycling.

201.11 Basis of Payment. Delete all and replace with the following:

All Tree Removal, Protection of Existing Plant Material, Care of Existing Plant Material and Trash/Debris Removal within the construction limits shall be paid for at the contract lump sum price for SPECIAL CLEARING. No payment for any of the items associated within the limits of Special Excavation will be made. Payment for those shall be in accordance with Section 215 -

SPECIAL EXCAVATION.

End of Revisions to SECTION 201.

SECTION 215. SPECIAL EXCAVATION (add this section)

215.01 Description.

Special Excavation shall consist of the removal and disposition of any and all materials encountered within the areas of the mine opening(s), sinkholes, voids, or depressions as specified in the plans. Some of these materials include (but are not limited to): materials listed in Section 201 of the Special Provisions, existing foundation, mine related material such as cribbing, stairs, etc., mine refuse, spoil, and/or earth materials.

CONSTRUCTION REQUIREMENTS

215.02 Classification.

Special excavation shall include all materials encountered within the mine opening(s) as specified in the plans, except water, to be removed prior to filling operations. Excavated material shall be classified by the Engineer prior to handling as:

(a) Unsuitable material to be removed from the site according to Section 201 of the Special Provisions. The cost of removal and disposal of all unsuitable material off-site shall be considered as incidental to the contract and the cost shall be included in the unit price bid per cubic yard for Special Excavation.

(b) Suitable fill material is to be used in refilling the special excavation(s) and/or disposed of as specified in the plans.

215.03 Overhaul.

No work is classified as overhaul.

215.04 Excavation.

(a) All materials shall be excavated from within the shaft lining (collar) or around the mine opening(s) to a configuration and depth as specified in the plans to attain a stable base. The Engineer will determine the configuration and depth of the Special Excavation to attain a stable base in the field.

(b) Any holes, voids, or open shafts created by these operations shall be secured by the Contractor to prevent entry upon completion of a day's work. No openings shall be allowed to remain unsecured overnight, weekends, holidays, or any other time when work is not in progress.

(c) If subsidence occurs or mine gas is detected, work shall cease immediately, and the Engineer shall be notified.

(d) Any water encountered shall be treated if necessary to meet IEPA Mine Discharge Standards and pumped from the Special Excavation to assure maximum stability. Any cost for this shall be considered incidental and included in the unit price per cubic meter (cubic yard) for Special Excavation.

(e) Prior to shaft filling the base shall be compacted as determined by the Engineer to assure a stable base.

215.05 Method of Measurement.

(a) Measured Quantities. Special Excavation will be measured in its original position, and the volume in cubic yards computed by the method of average end areas. The volume of any unstable or unsuitable material removed, and the volume of the replacement material, will both be measured for payment in cubic meters (cubic yards).

Excavated material used for purposes other than designated in the Specifications, and material excavated beyond slope lines, will not be measured for payment.

215.06 Basis of Payment.

Special Excavation will be paid for at the contract unit price per cubic meter (cubic yard) for SPECIAL EXCAVATION, measured as specified herein.

End of SECTION 215.

SECTION 216. MINE OPENING FILLING AND SEALING (add this section)

216.01 Description.

This shall include furnishing all labor, materials, equipment, and services to properly fill the mine opening(s), sinkholes, voids, or depressions, as specified in the plans.

216.02 Material.

Material for filling and sealing the mine openings shall meet the following material requirements descriptions or Articles in the Standard Specifications:

Item Article

(a) Portland Cement 1001

(b) Fine Aggregates 1003.01

(c) Coarse Aggregates 1004.01

(d) Stone for Rockfill / Rockfill 1005.01

(e) Class SI Concrete 1020

(f) Polyvinyl Chloride (PVC) Pipe 1040

(g) Filter Fabric Material 1080.03

(h) Cement Grout

Cement Grout shall be one-part cement to three parts sand (no gravel) - 9 Sack Portland Cement mixture.

(i) Earth. This material shall be soil excavated on-site as specified in the plans and approved by the Engineer. If none is available on-site, the soil material may come from an off-site source and must be approved by the Engineer. This may include material excavated from the shaft that has been approved by the Engineer as suitable fill.

(j) Rubble. This material shall be defined as structure rubble or stone ranging in size from 24 to 36 in. (600 to 900 mm) in any direction. Structure rubble may consist of broken concrete, brick, or stone as designated in the plans and must be approved by the Engineer.

(k) Shot Rock. Shot rock shall be stone quarried from undisturbed, consolidated deposits of rock reasonably free of shale and shaly stone. The ledges shall be sufficiently thick to produce the desired dimensions. The stone shall be reasonably free of lamination, seams, cracks and other structural defects or imperfections tending to destroy its resistance to weather. Field stone or boulders will not be accepted.

Gradation: The stone shall have a maximum thickness of 30 in. (750 mm) measured in any direction. Fifty percent of the material shall weigh 60 lb. (27.2 kg) or more per piece. Not more than ten percent shall weigh less than 3 lb. (1.4 kg) per piece.

216.03 Submittal and Notification.

The Contractor shall notify the Engineer at least three days in advance of starting shaft filling operations. The Contractor shall provide the Engineer with all weight tickets, letters of installation of fill material.

216.04 Construction Requirements.

(a) Any water pumped or discharged from within the mine openings shall be tested and treated, if necessary, to meet Illinois Environmental Protection Agency (IEPA) Mine Pollution Discharge Standards. Filling into a flooded shaft shall be permitted provided it does not result in a discharge or release of polluted water.

(b) Open shafts, holes, or voids shall not remain unprotected overnight, weekends, holidays, or any other time when work is not in progress. It shall be the Contractor's responsibility to properly secure from entry any portion of the work remaining at the end of a work day.

(c) On shafts with an existing cap to be removed, the Contractor shall notify the Engineer three working days prior to removing the cap so that an inspector can be present to check for methane and to visually inspect the shafts interior.

(d) On shafts where Special Excavation is required, backfilling or plugging operations shall not commence until the Engineer has inspected the excavated shaft area and approved the satisfactory completion of the Special Excavation.

(e) On shafts where a concrete plug is specified, the placement of the concrete shall not exceed a maximum free fall of 4 ft (1200 mm). No fill materials may be placed on top of the concrete plug until it has been allowed to cure for a minimum of 48 hours. After the required curing period has elapsed the Contractor shall place the remaining fill materials in accordance with the plans and specifications.

(f) Filling operations shall be a continuous procedure in accordance with the fill type materials as specified in the plans. Earth fill material shall be placed in lifts of 8 to 12 in. (200 to 300

mm) and shall be compacted to the Engineer's satisfaction.

(g) If cement grout is specified on the plans, it shall be evenly distributed over the fill, after the filling is complete at the location as shown on the plans the cement grout shall be allowed two days to cure before placing the remaining fill materials. During this time the Contractor shall secure the area with temporary fencing and direct all surface drainage away from the opening.

(h) The Engineer reserves the right to increase or decrease any or all quantities required for this project. If additional materials are needed, they will be paid for at the contract unit prices as specified, which cost shall include transportation and handling.

216.05 Method of Measurement.

Class SI Concrete plugs will be measured for payment in cubic yards.

No measurement will be made for Earth fill or Rubble fill.

No measurement will be made for any treatment and/or discharge of water from mine openings.

This shall be considered incidental to filling mine openings but included in the contract unit prices for fill material.

216.06 Basis of Payment.

No separate payment will be made for any pumping and/or discharge of water from mine openings.

Earth fill will not be paid for directly but shall be considered as incidental to SECTION 202 and SECTION 215, and the cost of this work shall be included in the unit price for those items.

Class SI Concrete plugs will be paid for at the contract unit price per cubic yard for CLASS SI

CONCRETE PLUG.

End of SECTION 216.

SECTION 250. SEEDING

250.02 Materials. Revise Article 1081.04 as indicated:

(a) Sampling and Testing. Each lot of seed, or seed mixture, except Prairie Forbs, furnished shall be tested by a State Department of Agriculture (including other states), or by land grant college or university agricultural sections, or by a Registered Seed Technologist. The seed sample shall be sent directly from the dealer to the place of testing. The cost of this testing shall be included in the unit bid price.

All seeds shall comply with the requirements of the U.S. Department of Agriculture Consumer and Marketing Service, Rules and Regulations under the Federal Seed Act of August 9, 1939, issued March 1940, reprinted with amendments April 1968, or any current revisions.

Acceptance of seeds furnished under this Specification will be based on receipt and approval of a certification covering tests from each lot of seed. Certification shall consist of test reports showing the required test results of lots corresponding to the shipment and signed by the responsible personnel of a State seed laboratory or college or university seed testing section or a Registered Seed Technologist. A Registered Seed Technologist shall verify his/her signature with his/her Society of Commercial Technologists' seal.

The sample must be tested within 30 days of scheduled seeding. Test reports shall provide or include the following information at a minimum:

(1) Name of Seed Dealer

(2) Kind and Variety of Seed

(3) Date of Test

(4) Lab Number

(5) Weight Examined by Grams

(6) Lot Number

(7) Pure Seed Crop by Name

(8) Purity Percentage Analysis

(9) Germination Percentage Analysis

(10) Hard Seed Percentage Analysis

(11) Other Crop Names and Percentages

(12) Common Weed Names & Percentages

(13) Percentage of Total Inert Matter

(14) Noxious Weeds and Percentages (if any)

A ten-percent tolerance will be allowed for each specified pure live seed species in the total seed mixture. If test results indicate insufficient pure live seed of any species, additional pure live seed of the same species shall be added prior to seeding, to correct deficiencies to within the ten percent tolerance allowable.

If test results indicate the presence of an Illinois noxious weed, or the seed mixture is found unacceptable by reason of any other defect that in the judgment of the Engineer cannot be corrected, the Contractor shall obtain a new supply of the specified seed mixture. Any areas seeded with an unacceptable seed mixture shall be destroyed, by preparing a new seed bed and reseeding. No additional compensation will be allowed for correcting deficiencies to within the allowable tolerance, for obtaining a new seed supply if required, or for reseeding.

Seeds may be sampled at destination on a random basis and tested for comparison with certification and compliance with the Specifications. If deviations are found, the results will be reviewed to determine whether the material is acceptable for use. Major deviations may result in a requirement that each lot of material from the source in question be sampled, tested and approved by the Illinois Department of Agriculture before further use.

250.03 Equipment. Revise Article 250.03(e) and add Article 250.03(i) and (j)).

(e) Broadcast Seeders (change to)

(e) Spinning Disk Seeders. (revise Article 1101.08(e) to the following)

When spinning disk seeders are used, the individual seeds comprising the seeding mixture need not be sown separately. A spike-toothed or tine-toothed harrow, approved by the Engineer, must be either be pulled behind the spinning disk seeder by the same equipment in one operation, or pulled by other equipment over all seeded areas on the same day.

(i) Harrows - Spike Toothed and Tine Toothed. (add as Article 1101.08(i))

Spike and tine toothed harrows shall be commercially manufactured harrows designed for light tillage necessary to cover grass and legume seed after these seeds have been broadcast with spinning disk seeders, truck mounted air flow fertilizer/seeder spreaders, and aerial seeders.

(j) No-Till Seeder. (add as Article 1101.08(j))

These seeders shall be commercially manufactured no-till (zero-till) seeders specifically designed for no-till placement of grass and legume seed and shall be approved by the Engineer prior to use.

250.04 Fertilizer and Agricultural Ground Limestone Application. Revise to:

(a) Prior to the application of fertilizer nutrients and agricultural ground limestone on the soil and/or coal refuse, the Contractor shall notify the Engineer so that the Engineer can sample soil and/or coal refuse, retest and, if necessary, revise the rates for fertilizer and limestone specified on the plans to accommodate actual field conditions.

(b) Immediately prior to seed bed preparation and seeding, fertilizer nutrients and agricultural ground limestone shall be uniformly spread at the specified rates over the areas designated.

Specified rates of agricultural ground limestone and fertilizer nutrients are listed on the plans under Summary of Quantities or Schedule of Seeding, Fertilizer Nutrients, Mulch and Mowing.

Fertilizer quantities and application rates may be based on two or more applications.

Potassium may be required to be applied in split applications.

(c) When Incorporation - Limestone and Mulch are to be used, as specified in the plans, agricultural ground limestone shall be applied in accordance with SECTION 256. The fertilizer nutrients and seed mixture shall then be uniformly spread at the rates specified over the incorporated areas and tilled into the soil with the seed mixture by use of a spike toothed or tine toothed harrow as directed by the Engineer.

(d) No-till (zero-till) Seeding. No-Till (zero-till) seeding will not require seed bed preparation.

Agricultural ground limestone shall be applied two weeks (14 days) prior to no-till (zero-till) seeding. Fertilizer nutrients shall be applied two weeks (14 days) after no-till (zero-till) seeding according to the Engineer's discretion. The no-till (zero-till) areas may or may not be mowed prior to or after no-till (zero-till) seeding according to the Engineer's discretion. If the Engineer determines mowing is necessary, it will be measured and paid for according to Articles 250.09 and 250.10, respectively. At no time will the seeder be used as a mulch stabilizer in conjunction with seeding or alone.

(e) Direct Vegetation. If seed bed preparation is required on direct vegetation areas, agricultural ground limestone and fertilizer nutrients shall be applied prior to seeding and according to these specifications. If seed bed preparation is not required or if the Engineer determines it is impractical, the agricultural ground limestone and fertilizer nutrients shall be applied according to the Engineer's discretion.

250.05 Seed Bed Preparation. Delete last paragraph and add the following:

Seed bed preparation cannot be performed sooner than 14 days prior to seeding. Seed bed preparation will not be required when no-till seeding or Incorporation - Limestone and Mulch is specified.

250.06 Seeding Methods. Delete all but paragraphs 1 and 2 and add the following:

Harrows that meet the requirements of Article 250.03(j) shall be used for light tillage to cover grass and legume seeds, fertilizer and agricultural ground limestone with soil to the satisfaction of the Engineer on the same day the that the seed is sown. A minimum of two passes will be required, one parallel to the slope and one perpendicular to the slope to assure coverage.

Rolling will not be required.

250.07 Seeding Mixtures. Change to:

250.07 Seeding Requirements and Guarantee.

(a) Seeding Dates and Seed Mixture for Permanent Seeding.

CENTRAL ILLINOIS

Spring seeding dates shall be April 1 to June 15, and fall seeding dates shall be August 1 to November 1, for the following seeding mixes (IDOT Class 2).

Seeding will not be allowed when the wind speed is 10 miles/hour (16 kilometers/hour) or greater. Seed bed preparation may be allowed by the Engineer prior to seeding dates at his/her discretion.

PURE LIVE SEED

SEED (VARIETIES) lb./ac. (kg./ha.)

Tall Fescue (Inferno, Tarheel II, Quest, Blade Runner, or Falcon IV) 100 (110) Perennial Ryegrass 50 (55) Creeping Red Fescue 40 (50) Red Top 10 (10)

TOTAL 200 (225)

Average purity and germination percentages (viable seed for legumes) are from 1948, Yearbook of Agricultural, Grass. Any other product from seed tag percentages of germination times purity, and/or viable seed, will cause the Contractor to adjust his/her total pounds/acre (kilograms/hectare) of seed to sow.

(b) Temporary Seeding. This provision is applicable in the event that the Contractor fails to perform permanent seeding within the dates specified. In that event, temporary seeding shall be required to provide a temporary vegetative cover until the next term of permanent seeding dates. Temporary seeding shall be performed by the Contractor at his/her own proper cost and expense, at no additional cost to the Department. Prior to temporary seeding, the Engineer shall submit in writing to the Contractor a proposed temporary seeding mixture, specifying the seed varieties and their respective rates on a pounds/acre (kilograms/hectare) of pure live seed basis. Vegetation resulting from the temporary seeding shall be destroyed as part of the seed bed preparation for permanent seeding during the next term of permanent seeding dates.

(c) Reseeding Guarantee. The Contractor is required to guarantee the results of the permanent seeding for one year after the date of seeding. The Engineer will periodically inspect all seeded areas during that year to determine whether or not vegetation has been successfully established. Upon the Engineer's determination that vegetation has been successfully established, the Contractor shall be released from all further obligations. If the Engineer determines that vegetation on any area is unacceptable, the Contractor shall be required to reseed that area during the next term of permanent seeding dates, at the Contractor's own proper cost and expense, and at no additional cost to the Department.

Unacceptability will be based on:

1. Seed test failure (Article 250.02).

2. Using unacceptable equipment in performing seeding.

3. Failure to perform seeding as specified; i.e., missing areas during seeding, improper seed bed preparation, etc.

4. Failure to perform mulching as specified; i.e., applying too much or too light application in some areas, using unacceptable mulch, etc.

(d) Subsequent Reseeding. Any area reseeded once by the Contractor will be inspected within six months after reseeding to determine if germination has occurred. If subsequent reseedings are required of the same area(s), through no fault of the Contractor, the

Contractor shall be compensated for such subsequent reseeding at unit bid prices, or as otherwise agreed upon by the Contractor and the Engineer.

250.08 Selective Mowing Stakes. (delete entire article)

250.09 Method of Measurement. Revise as indicated:

Delete all references to mowing and refer to SECTION 258 if mowing is specified on the plans.

In Article 250.09(b), delete “of the class specified”.

Measurement will be by tape measure or measuring wheel of those areas properly seeded in accordance with specifications. Only those areas designated to be seeded by the Engineer will be paid for.

250.10 Basis of Payment. Revise as indicated:

Substitute SEEDING for the various classes of seeding and inter seeding. The cost of seed testing and any temporary seeding or reseeding will not be paid for separately but shall be considered incidental to the cost of SEEDING.

Delete all references to mowing and refer to SECTION 258 if mowing is specified on the plans.

Payment will be per acre of seeding.

End of Revisions to SECTION 250.

SECTION 666. RIGHT-OF-WAY MARKERS (Delete entire section and replace with the following:)

SECTION 666. MINE OPENING MARKERS

666.01 Description.

This work shall consist of the proper installation of the concrete mine marker as shown on the plans and specified herein.

666.02 Materials.

(a) Concrete -- The concrete shall be Class SI Concrete and shall meet the requirements of Section 1020.

(b) A brass tablet for the concrete mine marker will be furnished by the Engineer prior to construction of the marker.

666.03 Erection of Marker.

(a) Location

The exact location of the concrete mine marker will be staked by the Engineer prior to the beginning of concrete marker work. The approximate location is shown on the plans.

(b) Tablet

During construction of the concrete marker (either pre-cast in the shop or cast-in-place in the field), the Contractor will be required to anchor the brass tablet in the "wet" concrete and properly finish the top face to securely bond the two materials together.

(c) Installation

The concrete mine marker shall be installed in compacted soil, the bottom of the holes shall be compacted to provide a stable foundation and it shall be set in a vertical position. The hole shall be backfilled with approved materials, in layers, thoroughly rammed in such a manner that the bottom of the marker will not be moved from their correct position.

666.04 Basis of Payment.

This work shall be paid for at the contract unit price each for MINE OPENING MARKER.

End of Revisions to SECTION 666.

SECTION 671. MOBILIZATION (Delete entire section and replace with the following:)

671.01 Description.

This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies and incidentals to the project site; for establishment of offices, buildings and other facilities necessary for work on the project; and for all other work or operations which must be performed or costs incurred when beginning work on the project.

This work shall also consist of ancillary tasks which are not covered by other pay items. These tasks may include, but are not necessarily limited to, fence removal, pumping water, traffic control, and providing and maintaining construction barriers and signage.

The amount which a Contractor will receive payment for, in accordance with the following schedule, will be limited to fifteen percent (15%) of the total contract bid.

671.02 Basis of Payment.

Payment of the lump sum amount bid for this item, not exceeding fifteen percent (15%), will be made in two partial payments. One after mobilization, and one after demobilization and substantial completion of the project.

Nothing herein shall be construed to limit or preclude partial payments for other items as provided for by the contract.

End of Revisions to SECTION 671.

TEST BORING LOGS

The test boring log that follows is provided for the Contractor’s use in assessing subsurface conditions.

This data was prepared for the exclusive use of the Department for use in the design of this project; no other warranty, expressed or implied, is made. It remains the Contractor’s responsibility to thoroughly acquaint himself with the site’s subsurface conditions as they relate to his work by whatever means he judges appropriate.

Clover Leaf Mine No. 4 DATE: December 10, 2020

Shaft Reclamation BORING ENG.: M. Emken

Coffeen, Montgomery County, Illinois DRILLING TECH.: K. Lemon

Project #181-3480

FOUNDATION BORING LOG

BORING NO.: 1 N Qu W REC GROUNDWATER ELEV. N Qu W REC COORDINATES: -- Value (tsf) (%) (%) COMP.: Dry; Bridge at -7.2 ft. Value (tsf) (%) (%)

AFTER 24 HRS.: --

SURFACE ELEV.: 633 ft. (Approx)

0 20

Cinders

SILTY CLAY LOAM TILL (CL),

SILTY CLAY LOAM (CL), Dark P Light Brown, Dry to Moist, Hard, P

Gray, Moist, Stiff, Trace of Cinders Trace of Sand and Gravel

5 9 2.0 31.6 72 25 56 >4.5 10.7 100

End of Exploration at -25.0 ft.

SILTY CLAY (CL), Light Brown, Moist, Medium Stiff, Trace of

Cinders

P Notes:

1) Borehole backfilled with soil

No Cinders 10 4 1.5 31.5 50 cuttings upon completion of 30 groundwater measurement.

2) Groundwater encountered at 18.5 ft. depth during drilling.

Gray, Orangish Brown, Mottled

P

15 7 1.5 29.0 100 35

SILTY CLAY TILL (CL), Gray, P

Orangish-Brown, Mottled, Moist, Trace of Sand 20 5 1.5 24.1 100 40

N: Blows per ft. to Drive 2" O.D. Split Spoon Sampler Qu: Unconfined Compression Strength Type Failure:

12" with 140 lb. Hammer falling 30" NP: Non-Plastic B: Bulge Failure

(Standard Penetration Test) ST: Shelby Tube S: Shear Failure

W: Water Content NS: No Sample

RQD: Rock Quality Determination P: Penetrometer

HURST-ROSCHE, INC.

HILLSBORO, ILLINOIS

PHONE 217/532-3959

12-14-20 Clover Leaf Mine Boring