Daugherty WRE Clark County May 5, 2025 8-1

Construction Specification 8—Mobilization and Demobilization

1. Scope The work consists of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under the contract. It does not include mobilization and demobilization for specific items of work for which payment is provided elsewhere in the contract.

Mobilization will not be considered as work in fulfilling the contract requirements for commencement of work.

2. Equipment and material Mobilization shall include all activities and associated costs for transportation of contractor's personnel, equipment, and operating supplies to the site; establishment of offices, buildings, and other necessary general facilities for the contractor's operations at the site; premiums paid for performance and payment bonds including coinsurance and reinsurance agreements as applicable; and other items specified in section 4 of this specification.

Demobilization shall include all activities and costs for transportation of personnel, equipment, and supplies not required or included in the contract from the site; including the disassembly, removal, and site cleanup of offices, buildings, and other facilities assembled on the site specifically for this contract.

This work includes mobilization and demobilization required by the contract at the time of award. If additional mobilization and demobilization activities and costs are required during the performance of the contract as a result of changed, deleted, or added items of work for which the contractor is entitled to an adjustment in contract price, compensation for such costs will be included in the price adjustment for the item or items of work changed or added.

3. Payment Payment will be made as the work proceeds, after presentation of paid invoices or documentation of direct costs by the contractor showing specific mobilization and demobilization costs and supporting evidence of the charges of suppliers, subcontractors, and others. When the total of such payments is less than the lump sum contract price, the balance remaining will be included in the final contract payment. Payment of the lump sum contract price for mobilization and demobilization will constitute full compensation for completion of the work.

Payment will not be made under this item for the purchase costs of materials having a residual value, the purchase costs of materials to be incorporated in the project, or the purchase costs of operating supplies.

4. Items of work and construction details

Bid Item – 1 – Mobilization and Demobilization

1. This item shall consist of the mobilization and demobilization of the contractor’s forces and equipment as well as all permitting, bonding and insurance requirements necessary to perform the work required under this contract

2. Access to the site shall be as shown on the drawings. During all operations, it will be the contractor’s responsibility to keep all public roads open. Access roads shall be restored to original condition or better upon competition of work. Access road grading may be required to allow access to material

Daugherty WRE Clark County May 5, 2025 8-2 delivery traffic. Any work shall be at the contractor’s expense and approved by COTR prior to implementation.

3. All earthmoving equipment utilized for the work shall meet the requirements of the OSHA, Paragraph

1926.602. In addition, roll-over protection and safety belts shall be installed, maintained, and utilized regardless of the equipment age or struck capacity. This includes earthmoving equipment as mentioned in part 1926, Subpart 0, sections 1926.602 and subpart W, section 1000,101, and 1002, to include skid-steer and self-propelled compactor equipment.

4. Prior to commencement of construction, the contractor is responsible for contacting COTR, at (217)- 345-3901 ext 4020, a minimum of 5 business days before operations on –site begin

5. All invoices submitted by the contractor shall be subject to approval of the Contracting Officer (CO)

6. The contractor shall perform the work in such a manner as to control erosion and minimize the production of sediments and other pollutants to the water and air during construction operations

7. The contractor shall be responsible and take precautions to protect existing utilities. Contractor shall provide proper notification to the Illinois 1 call system and provide the COTR with DIG number and other proper documentation

8. Payment shall be lump sum. Such payment shall constitute full compensation for all labor, equipment, materials, tools, and other items necessary to complete the work

6-1 Daugherty WRE May 5, 2025

Clark County, Illinois

Construction Specification 6—Seeding, Sprigging, and Mulching

The work consists of preparing the area for treatment; furnishing and placing seed, sprigs, mulch, fertilizer, inoculant, lime, and other soil amendments; and anchoring mulch in designated areas as specified.

2. Material Seed—All seed shall conform to the current rules and regulations of the state where it is being used and shall be from the latest crop available. It shall meet or exceed the standard for purity and germination listed in section 7.

Seed shall be labeled in accordance with the state laws and the U.S. Department of Agriculture rules and regulations under the Federal Seed Act in effect on the date of invitations for bids. Bag tag figures are evidence of purity and germination. No seed will be accepted with a test date of more than 9 months before the delivery date to the site.

Seed that has become wet, moldy, or otherwise damaged in transit or storage will not be accepted.

The percent of noxious weed seed allowable shall be as defined in the current State laws relating to agricultural seeds. Each type of seed shall be delivered in separate sealed containers and fully tagged unless exception is granted in writing by the contracting officer.

Fertilizer—Unless otherwise specified, the fertilizer shall be a commercial grade fertilizer. It shall meet the standard for grade and quality specified by State law. Where fertilizer is furnished from bulk storage, the contractor shall furnish a supplier's certification of analysis and weight.

When required by the contract, a representative sample of the fertilizer shall be furnished to the contracting officer for chemical analysis.

Inoculants—The inoculant for treating legume seeds shall be a pure culture of nitrogen-fixing bacteria prepared specifically for the species and shall not be used later than the date indicated on the container or as otherwise specified. A mixing medium, as recommended by the manufacturer, shall be used to bond the inoculant to the seed. Two times the amount of the inoculant recommended by the manufacturer shall be used except four times the amount shall be used when seed is applied using a hydraulic seeder. Seed shall be sown within 24 hours of treatment and shall not remain in the hydraulic seeder longer than 4 hours.

Lime and other soil amendments—Lime shall consist of standard ground agriculture limestone, or approved equivalent. Standard ground agriculture limestone is defined as ground limestone meeting current requirements of the State Department of Agriculture. Other soil amendments shall meet quality criteria and application requirements specified in section 7.

Mulch tackifiers—Asphalt emulsion tackifiers shall conform to the requirements of ASTM D 977, Specification for Emulsified Asphalt. The emulsified asphalt may be rapid setting, medium setting, or slow setting. Nonasphaltic tackifiers required because of environmental considerations shall be as specified in section 7.

Straw mulch material—Straw mulch shall consist of wheat, barley, oat or rye straw, hay, grass

6-2 cut from native grasses, or other plants as specified in section 7. The mulch material shall be air-dry, reasonably light in color, and shall not be musty, moldy, caked, or otherwise of low quality.

The use of mulch that contains noxious weeds is not permitted. The contractor shall provide a method satisfactory to the contracting officer for determining weight of mulch furnished.

Other mulch materials—Mulching materials, such as wood cellulose fiber mulch, mulch tackifiers, synthetic fiber mulch, netting, and mesh, are other mulching materials that may be required for specialized locations and conditions. These materials, when specified, must be accompanied by the manufacturer's recommendations for methods of application.

3. Seeding mixtures, sod, sprigs, and dates of planting The application rate per acre for seed mixtures, sprigs, or sod and date of seeding or planting shall be as shown on the plans or as specified in section 7.

4. Seedbed preparation and treatment Areas to be treated shall be dressed to a smooth, firm surface. On sites where equipment can operate on slopes safely, the seedbed shall be adequately loosened (4 to 6 inches deep) and smoothed. Depending on soil and moisture conditions, disking or cultipacking, or both, may be necessary to properly prepare a seedbed. Where equipment cannot operate safely, the seedbed shall be prepared by hand methods by scarifying to provide a roughened soil surface so that broadcast seed will remain in place.

If seeding is to be accomplished immediately following construction operations, seedbed preparation may not be required except on a compacted, polished, or freshly cut soil surface.

Rocks larger than 6 inches in diameter, trash, weeds, and other debris that will interfere with seeding or maintenance operations shall be removed or disposed of as specified in section 7.

Seedbed preparation shall be discontinued when soil moisture conditions are not suitable for the preparation of a satisfactory seedbed as determined by the contracting officer's technical representative (COTR).

5. Seeding, sprigging, fertilizing, mulching, and stabilizing All seeding or sprigging operations shall be performed in such a manner that the seed or sprigs are applied in the specified quantities uniformly in the designated areas. The method and rate of seed application shall be as specified in section 7. Unless otherwise specified, seeding or sprigging shall be accomplished within 2 days after final grading is completed and approved.

Fertilizer, lime, and other soil amendments shall be applied as specified in section 7. When specified, the fertilizer and soil amendments shall be thoroughly incorporated into the soil immediately following surface application.

The rate, amount, and kind of mulching or mesh shall be as specified in section 7. Mulches shall be applied uniformly to the designated areas. They shall be applied to areas seeded not later than 2 working days after seeding has been performed. Straw mulch material shall be stabilized within 24 hours of application using a mulch crimper or equivalent anchoring tool or by a suitable tackifier. When the mulch crimper or equivalent anchoring tool is used, it shall have straight blades and be the type manufactured expressly for and capable of firmly punching the mulch into

6-3 the soil. Where the equipment can be safely operated, it shall be operated on the contour. Hand

6-4 methods shall be used where equipment cannot safely operate to perform the work required.

The tackifier shall be applied uniformly over the mulch material at the specified rate, or it shall be injected into the mulch material as it is being applied. Mesh or netting stabilizing materials shall be applied smoothly, but loosely on the designated areas. The edges of these materials shall be buried or securely anchored using spikes or staples as specified in section 7.

The contractor shall maintain the mesh or netting areas until all work under the contract has been completed and accepted. Maintenance shall consist of the repair of areas damaged by water erosion, wind, fire, or other causes. Such areas shall be repaired to reestablish the intended condition and to the design lines and grades required by the contract. The areas shall be refertilized, reseeded, and remulched before the new application of the mesh or netting.

6. Measurement and payment Method 1—For items of work for which specific unit prices are established in the contract, each area treated is measured as specified in section 7 and the area calculated to the nearest 0.1 acre.

Payment for treatment is made at the contract unit price for the designated treatment, which will constitute full compensation for completion of the work.

When specified as an item of work, mesh or netting is measured to the nearest square yard of surface area covered and accepted. Payment is made at the contract unit price and will constitute full compensation for completion of the work.

Method 2—For items of work for which specific lump sum prices are established in the contract, the quantity of work will not be measured for payment. Payment for this item is made at the contract lump sum price for the item and will constitute full compensation for the completion of the work.

Method 3—For items of work for which lump sum prices are established in the contract, payment is made as the work proceeds. Progress payments will be determined as specified in section 7.

Payment of the lump sum contract price will constitute full compensation for completion of the work.

All Methods—The following provisions apply to all methods of measurement and payment.

Compensation for any item of work described in the contract, but not listed in the bid schedule is included in the payment for the item of work to which it is made subsidiary. Such items and the item(s) to which they are made subsidiary are identified in section 7.

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7. Items of work and construction details

1. Bid Item #2 -Seeding- This item shall consist of furnishing all the labor, materials, equipment, and tools for the preparation of the seedbed, placement of fertilizer, and seeding of the specified areas listed below.

Seeding Areas

Description Quantity Unit

HM1 1.19 AC

HM3A 0.48 AC

HM3 0.92 AC

HM4 1.01 AC

HM5 1.07 AC

HM6 0.56 AC

HM7 0.60 AC

HM8 0.50 AC

HM9A 0.66 AC

Total 7.0 AC

Fertilizer/Mulch Rate

Actual N 120lbs/ac 0.42 ton

P2O5 120lbs/ac 0.42 ton

K2O 120lbs/ac 0.42 ton

Lime 2 Ton/ac 14.0 ton

Seed – the seed shall be delivered to the site in tagged and labeled bags showing the percentage of purity and germination. The seed shall originate from the United States or Canada, have been tested with six (6) months prior to the date of seeding and shall conform to the latest seed and weed laws of Illinois. When the percent of pure live seed is less than 100%, the rate of seeding shall be increased to achieve the same net pure live seed required.

Seed shall have a minimum of 80% pure live seed.

Rates are specified below

Seeding Summary ***

Variety

PLS

lbs./ac AC Lbs.of PLS

Seeding

Switchgrass ‘Cave-in-Rock’ 8 7.0 56.0

Redtop 12 7.0 84.0

Oats 20 7.0 140.0

*** PLS (Pure Live Seed) -- Quantities purchased from supplier will be greater than this amount due to germination % and seed purity.

PLS = [(%germination+%dormant seed) x %purity]/100

The seeding operation shall be performed immediately after notification of contractor’s officer’s technical representative (COTR) has provided inspection of completed earthfill and

6-6 preparation of the seed bed is complete. Seed shall be applied uniformly at a depth of ¼ - ½ inch with a drill or cultipacker type seeder. Broadcast methods are acceptable where the seed will be applied uniformly and covered ¼ - ½ inch deep with a cultipacker/cultimulcher, harrow, or similar tool designed to break clods. level, and firm the seedbed.

Material certifications shall be provided and reviewed by COTR prior to commencement of seeding.

Seeding method shall be as follows. Apply seed uniformly at a depth of ¼ to ½ inch with a drill or cultipacker-type seeder or broadcast and cover with a cultipacker, harrow, or similar tool. – other methods shall be approved by COTR prior to implementation.

Fertilizer, lime, and other soil amendments shall be applied by broadcasting. The fertilizer and soil amendments shall be thoroughly incorporated into the soil to a minimum depth of 3” immediately following surface application.

At any location where the seeding has been displaced by any of the contractor’s equipment or personnel, the seeding shall be repaired or replaced immediately at contractor’s expense, in a manner acceptable by contracting officer (CO)

Compensation shall be according to Method 2 for each type of seeding– under the Measurement and payment section. Payment is by lump sum for seeding.

DAUGHERTY WRE Clark County, IL May 5, 2025 21-1

Construction Specification 21—Excavation

The work shall consist of the excavation required by the drawings and specifications and disposal of the excavated materials.

2. Classification

Excavation is classified as common excavation, rock excavation, or unclassified excavation in accordance with the following definitions.

Common excavation is defined as the excavation of all materials that can be excavated, transported, and unloaded using heavy ripping equipment and wheel tractor-scrapers with pusher tractors or that can be excavated and dumped into place or loaded onto hauling equipment by excavators having a rated capacity of one cubic yard or larger and equipped with attachments (shovel, bucket, backhoe, dragline, or clam shell) appropriate to the material type, character, and nature of the materials.

Rock excavation is defined as the excavation of all hard, compacted, or cemented materials that require blasting or the use of ripping and excavating equipment larger than defined for common excavation. The excavation and removal of isolated boulders or rock fragments larger than 1 cubic yard encountered in materials otherwise conforming to the definition of common excavation shall be classified as rock excavation. The presence of isolated boulders or rock fragments larger than 1 cubic yard is not in itself sufficient cause to change the classification of the surrounding material.

For the purpose of these classifications, the following definitions shall apply:

Heavy ripping equipment is a rear-mounted, heavy duty, single-tooth, ripping attachment mounted on a track type tractor having a power rating of at least 250 flywheel horsepower unless otherwise specified in section 10.

Wheel tractor-scraper is a self-loading (not elevating) and unloading scraper having a struck bowl capacity of at least 12 cubic yards.

Pusher tractor is a track type tractor having a power rating of at least 250 flywheel horsepower equipped with appropriate attachments.

Unclassified excavation is defined as the excavation of all materials encountered, including rock materials, regardless of their nature or the manner in which they are removed.

3. Blasting

The transportation, handling, storage, and use of dynamite and other explosives shall be directed and supervised by a person(s) of proven experience and ability who is authorized and qualified to conduct blasting operations.

Blasting shall be done in a manner to prevent damage to the work or unnecessary fracturing of the underlying rock materials and shall conform to any special requirements in section 10 of this specification.

When specified in section 10, the contractor shall furnish the engineer, in writing, a blasting plan before blasting operations begin.

4. Use of excavated material

Method 1—To the extent they are needed, all suitable material from the specified excavations shall be used in the construction of required permanent earthfill or rockfill. The suitability of material for specific

May 5, 2025 21-2 purposes is determined by the engineer. The contractor shall not waste or otherwise dispose of suitable excavated material.

Method 2—Suitable material from the specified excavations may be used in the construction of required earthfill or rockfill. The suitability of material for specific purposes is determined by the engineer.

5. Disposal of waste materials

Method 1—All surplus or unsuitable excavated materials are designated as waste and shall be disposed of at the locations shown on the drawings.

Method 2—All surplus or unsuitable excavated materials are designated as waste and shall be disposed of by the contractor at sites of his own choosing away from the site of the work. The disposal shall be in an environmentally acceptable manner that does not violate local rules and regulations.

6. Excavation limits

Excavations shall comply with OSHA Construction Industry Standards (29CFR Part 1926) Subpart P, Excavations, Trenching, and Shoring. All excavations shall be completed and maintained in a safe and stable condition throughout the total construction phase. Structure and trench excavations shall be completed to the specified elevations and to the length and width required to safely install, adjust, and remove any forms, bracing, or supports necessary for the installation of the work. Excavations outside the lines and limits shown on the drawings or specified herein required to meet safety requirements shall be the responsibility of the contractor in constructing and maintaining a safe and stable excavation.

7. Borrow excavation

When the quantities of suitable material obtained from specified excavations are insufficient to construct the specified earth fills and earth backfills, additional material shall be obtained from the designated borrow areas. The extent and depth of borrow pits within the limits of the designated borrow areas shall be as specified in section 10 or as approved by the engineer.

Borrow pits shall be excavated and finally dressed to blend with the existing topography and sloped to prevent ponding and to provide drainage.

8. Over excavation

Excavation in rock beyond the specified lines and grades shall be corrected by filling the resulting voids with Portland cement concrete made of materials and mix proportions approved by the engineer. Concrete that will be exposed to the atmosphere when construction is completed shall meet the requirements of concrete selected for use under Construction Specification 31, Concrete for Major Structures, or 32, Structure Concrete, as appropriate.

Concrete that will be permanently covered shall contain not less than five bags of cement per cubic yard.

The concrete shall be placed and cured as specified by the engineer.

Excavation in earth beyond the specified lines and grades shall be corrected by filling the resulting voids with approved, compacted earthfill. The exception to this is that if the earth is to become the subgrade for riprap, rockfill, sand or gravel bedding, or drainfill, the voids may be filled with material conforming to the specifications for the riprap, rockfill, bedding, or drainfill. Before correcting an over excavation condition, the contractor shall review the planned corrective action with the engineer and obtain approval of the corrective measures.

May 5, 2025 21-3

9. Measurement and payment

For items of work for which specific unit prices are established in the contract, the volume of each type and class of excavation within the specified pay limits is measured and computed to the nearest cubic yard by the method of average cross-sectional end areas or by methods outlined in section 10 of this specification.

Regardless of quantities excavated, the measurement for payment is made to the specified pay limits except that excavation outside the specified lines and grades directed by the engineer to remove unsuitable material is included. Excavation required because unsuitable conditions result from the contractor's improper construction operations, as determined by the engineer, is not included for measurement and payment.

Method 1—The pay limits shall be as designated on the drawings.

Method 2—The pay limits shall be defined as follows:

a. The upper limit shall be the original ground surface as it existed before the start of construction operations except that where excavation is performed within areas designated for previous excavation or earthfill, the upper limit shall be the modified ground surface resulting from the specified previous excavation or earthfill.

b. The lower and lateral limits shall be the neat lines and grades shown on the drawings.

Method 3—The pay limits shall be defined as follows:

a. The upper limit shall be the original ground surface as it existed before the start of construction operations except that where excavation is performed within areas designated for previous excavation or earthfill, the upper limit shall be the modified ground surface resulting from the specified previous excavation or earthfill.

b. The lower and lateral limits shall be the true surface of the completed excavation as directed by the engineer.

Method 4—The pay limits shall be defined as follows:

a. The upper limit shall be the original ground surface as it existed before the start of construction operations except that where excavation is performed within areas designated for previous excavation or earthfill, the upper limit shall be the modified ground surface resulting from the specified previous excavation or earthfill.

b. The lower limit shall be at the bottom surface of the proposed structure.

c. The lateral limits shall be 18 inches outside of the outside surface of the proposed structure or shall be vertical planes 18 inches outside of and parallel to the footings, whichever gives the larger pay quantity, except as provided in d below.

d. For trapezoidal channel linings or similar structures that are to be supported upon the sides of the excavation without intervening forms, the lateral limits shall be at the underside of the proposed lining or structure.

e. For the purposes of the definitions in b, c, and d, above, any specified bedding or drainfill directly beneath or beside the structure will be considered to be a part of the structure.

All methods—The following provisions apply to all methods of measurement and payment.

Payment for each type and class of excavation is made at the contract unit price for that type and class of excavation. Such payment will constitute full compensation for all labor, materials, equipment, and all other items necessary and incidental to the performance of the work except that extra payment for backfilling over excavation will be made in accordance with the following provisions.

Payment for backfilling over excavation, as specified in section 8 of this specification, is made only if the excavation outside specified lines and grades is directed by the engineer to remove unsuitable material and if the unsuitable condition is not a result of the contractor's improper construction operations as determined by the engineer.

Compensation for any item of work described in the contract, but not listed in the bid schedule, is included in the payment for the item of work to which it is made subsidiary. Such items and the items to which they

May 5, 2025 21-4 are made subsidiary are identified in section 10 of this specification.

10. Items of work and construction details

Bid Item# 4 – Excavation, Common –20,943 cy

1 . This i t em sha l l cons i s t o f common excavation w h i c h includes excavation of pools and t i l e e x p l o r a t i o n t r e n c h .

2. All excavation in this contract is anticipated to meet the definition of common excavation as described in Section 2 Classification of this specification.

The disposal of excavated material will be by Method 1 under Item 5 Disposal of Waste Materials.

The Contractor shall take great care to not over excavate beyond the specified maximum depth in the borrow areas required for construction.

Under Section 9 -Measurement and payment, payment shall be by Method 1 , with the exception that the final quantities shall not be measured unless there is a significant change to the plans. It shall be the contractor's responsibility to prove this quantity difference to the COTR. If there are no changes to the plans, then the estimated volumes shall be used.

Bid Item#7 – Tile Exploration Trench – 4,323 ft

1. This item shall consist of the common excavation required to excavate a trench to expose any existing tile as shown on drawings and as described in the specifications and construction plans.

2. The tile exploration trench shall be inspected by NRCS prior to backfill. The contractor is to coordinate the timing to ensure NRCS inspector is present during excavation if the contractor wants to backfill immediately after exploration trench is dug.

3. Exploration trench requirements

a. Excavate to a minimum depth of 6.’

b. Trench shall be immediately backfilled in all locations where no drains are found after

NRCS inspection or shall have side slopes of trench sloped back or benched to meet OSHA requirements.

c. Backfill has no compaction requirements but shall be mounded for settlement.

d. In the event of located drain,

i. area shall not be backfilled and shall have side slopes of trench pulled back at 2:1 or flatter.

ii. NRCS shall be notified of all locations where tile drains were found.

iii. The contractor shall provide NRCS the following information.

iv. Location and/or station of drain

v. Size of drain found.

vi. Type of drain material

vii. Direction of flow

viii. Determine if tile drains adjacent property.

1. If determined to drain adjacent property, NRCS shall provide additional decommissioning instructions according with IL drainage law.

Additional criteria will consist of using non-perforated tile of similar material and size under the footprint of the pool to a point 200’ beyond those footprints.

2. If tile is found to not drain adjacent land, then contractor is to excavate the existing drain 200’. This will be included in the contractor’s expense.

May 5, 2025 21-5

In section 5, Disposal of Waste Materials, Method 1 will apply.

Under Section 9 -Measurement and payment, no payment method shall be used. Payment for each type of excavation is made at the contract unit price for that type of excavation. Such payment will constitute full compensation for all labor, material, equipment, and all other items necessary and incidental to the performance of the work, with the exception that the final quantities shall not be measured unless there is a significant change to the plans. This includes cost to meet all decommissioning procedures and quantities according to the plans. It shall be the contractor's responsibility to prove this quantity difference to the COTR. If there are no changes to the plans, then the estimated volumes shall be used.

Payment is by lump sum.

3 . This i t em sha l l cons i s t o f common excavation w h i c h includes, tile decommissioning and clearing and grubbing.

4. All excavation in this contract is anticipated to meet the definition of common excavation as described in Section 2 Classification of this specification.

5. Grubbing shall be a minimum of 6" depth for grass type vegetation, woody material shall be grubbed to a depth to remove root material and will vary based on size of woody material. It shall be grubbed to remove any vegetative material greater than 1" diameter of root material.

Clearing and grubbing shall be in the following areas: All pools shall be grubbed of vegetation.

Grub material shall be hauled to the habitat mound areas marked on the plans.

Grubbed Material

a. The grub material that mainly consists of earthen material shall:

i. Be grubbed to a depth of 6” minimum. Grub material shall be placed in designated locations per the construction plans.

b. The grubbed material that mainly consists of woody trunks, stems, root wads shall:

i. Be handled in a manner to reduce the amount of earthen material retained on woody vegetation.

ii. Shall be placed in a manner that prevents debris from being easily displaced and entering the adjacent channel by a flood event.

iii. Shredding of woody vegetation is permitted but shall be shredded or grubbed to a depth to remove the root wad.

6. Access paths/haul roads

i. This area does not require grubbing and clearing, the contractor shall develop routes to minimize damage to current vegetation.

ii. Access routes/ haul roads shall be approved by engineer prior to construction.

5. Spoil piles shall be constructed so the side slope does not exceed 6:1 and the height does not exceed 7 feet. The excess material pile(s) cannot block or divert drainage in a manner to cause damage to adjacent land.

6. Any trash or hazardous material found shall be removed and properly disposed of by the contractor.

The disposal of excavated material will be by Method 1 under Item 5 Disposal of Waste Materials.

The Contractor shall take great care to not over excavate beyond the specified maximum depth in the borrow areas required for construction.

Under Section 9 -Measurement and payment, no payment method shall be used. Payment for each type of excavation is made at the contract unit price for that type of excavation. Such payment will constitute full compensation for all labor, material, equipment, and all other items necessary and incidental to the performance of the work, with the exception that the final quantities shall not be measured unless there is a significant change to the plans. This includes cost to meet all decommissioning procedures and quantity according to the plans. It shall be the contractor's responsibility to prove this quantity difference to the

May 5, 2025 21-6

COTR. If there are no changes to the plans, then the estimated volumes shall be used.

Payment is by lump sum.