CONSTRUCTION SPECIFICATIONS

Buffalo Creek (Slone) Portals

LOGAN COUNTY, WEST VIRGINIA

STATE OF WEST VIRGINIA

DEPARTMENT OF ENVIRONMENTAL PROTECTION

ABANDONED MINE LANDS AND RECLAMATION

May 2021

TABLE OF CONTENTS

SECTION PAGE

I. SPECIAL PROVISIONS

I. Location/Site Description

II. Scope of Work

III. Borrow (Disposal) Areas

IV. Disposal of Unsuitable Material

V. Permits, Licenses, and Fees

VI. Contractor Information Form (AVS)

VII. NPDES Stormwater Requirements

VIII. Construction Sign

II. TECHNICAL SPECIFICATIONS

1.0 Mobilization and Demobilization

2.0 Construction Layout

3.0 Quality Control

4.0 Site Preparation

5.0 Erosion and Sediment Control

6.0 Revegetation

7.0 Mine Seals

8.0 Utilities

9.0 Traffic Control

Buffalo Creek (Slone) Portals

I. SPECIAL PROVISIONS

I. LOCATION / SITE DESCRIPTION

This project is located in Logan County. It is not within the city limits.

This project consists of two (2) portals that are dry and non-draining.

Directions to site:

From Charleston:

Directions to Site 1: From Man: follow Buffalo Creek Road (St. Route 16) approximately 6.75 miles to the town of Robinette. Portal site is situated along right side of road across railroad grade. Path goes into site area.

The Pre-bid meeting will meet at the wide spot on the side of Route 16 next to the railroad tracks.

The GPS location is as follows: 37°47'24.40"N 81°47'3.93"W

II. SCOPE OF WORK

The work covered by the Special Provisions and Technical Specifications consists of furnishing all labor, plant, power, equipment and supplies, and performing all operations necessary for the completion of the project. The Contractor shall perform all operations necessary for:

Dry Grouted Mine Seals Stabilized Construction Entrance Temporary Pipes Beneath SCE Sediment Control Structures

The Contractor shall also be responsible for surveying, including establishing construction baseline, measuring and developing all completed quantities on the job, and the ordering, purchase and delivery of any and all materials required for construction or required for development of support areas. The Contractor shall perform all other operations as incidental to the program as specified herein.

III. BORROW (DISPOSAL) AREAS

All borrow (disposal) areas must be approved by WVDEP. Should the Contractor decide to obtain and utilize any borrow areas outside of construction limits, or move material from one property owner to another, unless designated on the plans, the Contractor shall be responsible to obtain from the property owner(s) of the borrow areas, all necessary rights of entry, including rights of entry for WVDEP and OSMRE for inspection purposes. The said rights of entry agreement must state that the property owner(s) indemnify and hold harmless the WVDEP for Contractor’s action for any injury or damages whatsoever resulting from the use of the property.

The Contractor also shall submit a borrow/disposal area reclamation plan for prior approval by WVDEP. The Contractor shall observe the following NEPA compliance schedule relative to selecting and utilizing any off site borrow areas and/or any waste disposal areas.

a. No borrow (disposal) site operations will affect a site listed in, eligible for or proposed to be listed in the National Register of Historic Places.

b. No borrow (disposal) operations will be located within one-quarter mile of any federally listed established or prospective component of the National Wild and Scenic River System under 16 USC 1274 and 1276.

c. Borrow (disposal) site operations will not cause a significant encroachment within the base floodplain (CE.O. 11988: Floodplain Management).

d. Borrow (disposal) site operations will not be located in or affect a critical habitat of a Federally listed endangered or threatened species under 16 USC 1531, et. seq.

e. No borrow (disposal) operations will occur in wetland areas which are designated by appropriate agencies.

f. Borrow (disposal) site operations will be consistent with any approved plans governing ambient air quality.

g. Adherence to these mitigation measures does not relieve the Contractor of the obligation or responsibility to obtain any other federal, state, or local approvals required to use borrow (disposal) areas and conduct such activities.

h. Documentation: Copies of borrow (disposal) site approvals and concurrences will be submitted to the WVDEP prior to the commencement of reclamation activities.

i. Site Monitoring: Borrow (disposal) activities will be monitored by the state to ensure compliance with contractual requirements, applicable federal, state, and local laws, and any permit conditions.

IV. DISPOSAL OF UNSUITABLE MATERIAL

All waste areas shall be obtained in accordance with Special Provisions Section III (Borrow/Disposal Areas) of these specifications. All unsuitable materials (wood, trash, debris, and garbage) as determined by the Engineer shall be wasted by the Contractor, at his/her expense, outside the limits of work conforming to the requirements of Sections

4.3.8 of these Specifications. Wood may be burned in conformity with Sections 4.3.7 of these Specifications.

The Contractor shall observe the NEPA compliance schedule relative to selecting and utilizing any off-site disposal areas in accordance with Special Provisions Section III of these Specifications.

V. PERMITS, LICENSES AND FEES

The Contractor shall procure all permits and licenses, pay all charges and fees, and give all notices necessary and incidental to the due and lawful prosecution of the work. Permits required for this project may include but not be limited to: Water Quality Certification from WVDEP and burning permits from WV Division of Forestry and WVDEP Office of Air Quality. A copy of the permit/permits as procured shall be furnished to the Owner prior to initiation of the work under this Contract. There is no NPDES permit required for this project. Contractor shall be responsible for any Stream Activity Permits necessary to complete the project work.

VI. CONTRACTOR INFORMATION FORM (AVS)

Vendor must complete this form to request an eligibility evaluation from the Office of Surface Mining Reclamation and Enforcement. This requirement applies to contractors and their sub-contractors and is found under OSMRE's regulations at 30 CFR 874.16. Vendor must sign and date and form must be recent (must be completed within 30 days of submission date) to be considered for award.

VII. NPDES STORMWATER REQUIREMENTS

NPDES PERMIT NOT REQUIRED FOR THIS

PROJECT

VIII. CONSTRUCTION SIGN

CONSTRUCTION SIGN NOT REQUIRED

FOR THIS PROJECT

II. TECHNICAL SPECIFICATIONS

1.0 MOBILIZATION AND DEMOBILIZATION

1.1 Description

This work shall consist of the performance of construction preparatory operations, including the movement of personnel and equipment to the project sites and for the establishment of the Contractor’s offices, sanitary facilities, buildings, and other facilities including the construction of all temporary access roads as necessary to begin work on a substantial phase of the contract. The location of the Contractor’s office to be established shall be approved by WVDEP. It also shall include all demobilization activities involving the removal from the sites of all plant, equipment, supplies and personnel after completion of the work including cleanup of all rubbish and waste materials generated during the construction of this project and restoration of any damage to existing site improvements resulting from the Contractor’s activities at the site. All equipment and material storage areas shall be approved by WVDEP.

Upon receipt of a notice to proceed, the Contractor shall initiate and complete measures necessary to commence the work. Mobilization shall also consist of delivering to the site and assembling in working order all necessary equipment, materials, and supplies to be furnished by the Contractor to complete the work.

Demobilization shall consist of the removal from the site of all the Contractor’s equipment and materials after completion of the work and cleanup of the site. Work shall be done to the satisfaction of the WVDEP.

1.2 Method of Measurement and Basis of Payment

The bid for “Mobilization and Demobilization” shall be lump sum and cannot be more than 10% of the TOTAL AMOUNT BID for the project. Partial payments will be as follows:

(a) One-half of the amount bid will be released to the Contractor with the first estimate payable, not less than 15 days after the start of work at the project site.

(b) The final one-half of the amount bid shall be released with the last estimate payable after the work is accepted by the WVDEP and after all Final Inspection submittals are received and approved by WVDEP.

Nothing herein shall be construed to limit or preclude partial payments otherwise provided for by the contract. No deduction will be made nor will any increase be made, in the lump sum mobilization and demobilization item amount regardless of decreases or increases in the final total contract amount or for any other cause.

1.3 Pay Item

Item 1.1 “Mobilization and Demobilization” per lump sum cannot be more than 10% of the TOTAL AMOUNT BID for the project.

2.0 CONSTRUCTION LAYOUT

2.1 Description

This item consists of furnishing, placing, and maintaining construction layout stakes, (based on the original baselines and/or control points in the plans), necessary for the proper performance of the work under this contract including borrow/waste areas.

Construction limits must be clearly flagged prior to any disturbance. Pre-construction cross sections must be provided (and approved) prior to the start of any “unclassified excavation”. It shall further consist of determining the exact units of measure for payment.

It also consists of checking and making any field adjustment to the plan alignment, grades and elevations as considered necessary by the WVDEP. Additionally, this item shall also include the preparation of “As-Built” Plans including the Reclamation Plan and any others specifically requested by the WVDEP. All “As-Built” Plans shall be provided prior to the Final Inspection Meeting. This item will be paid according to the following schedule: up to fifty percent (50%) of the total bid amount of this item will be released for payment when all required layout work is completed. The remaining fifty percent (50%) will be paid on the final invoice once the As-Builts are submitted and approved.

2.2 Materials

Conventional survey stakes, hubs, batter boards, flagging, templates, straightedges and other devices necessary for laying out all parts of the work.

2.3 Construction Methods

2.3.1 The Contractor shall be responsible for the proper layout of the work. The WVDEP will provide the Contractor with survey information regarding the baselines and the existing surface features shown on the Construction Drawings. The Contractor shall make all calculations involved and shall furnish and place all layout stakes.

2.3.2 The Contractor shall provide field forces and shall set all additional stakes as needed, such as offset stakes, reference point stakes, slope stakes, grade stakes, stakes for drainage, or other structures, supplementary bench marks, and any other horizontal or vertical controls necessary to secure a correct layout of the work including the re-establishment of the survey and construction baselines (as necessary), as shown on the Construction Drawings.

2.3.3 The Contractor shall be responsible for assuring the layout staking work is in conformance to the lines, grades, elevations, dimensions, and locations shown on the Construction Drawings or as required by the WVDEP. The Contractor shall furnish a copy of his/her survey records for review by the WVDEP and for the

WVDEP’s permanent file. These records shall be furnished as they are completed during the progress of the work.

Any inspection or review of the Contractor's layout by the WVDEP and the acceptance of all or any part of it shall not relieve the Contractor of his/her responsibility to secure the proper dimensions, grades, and elevations of the several parts of the work.

2.3.4 The Contractor shall exercise care in the preservation of stakes and benchmarks, including existing property line markers, and shall have them reset at his/her expense when any are damaged, lost, displaced or removed.

The Contractor shall use competent personnel and suitable equipment for the layout work required and shall provide that it be done under the supervision of, or directed by, a Professional Surveyor registered in the State of West Virginia. As the survey is completed, the Professional Surveyor shall certify that the site layout is complete for all necessary grades (both cut and fill), location and grades of all ditches, all cross-sections related to cut-fill where grade lines are necessary for construction and or billing. This layout shall include location stakes and cut-fill lines marked on the stakes for each pre-manufactured or formed on site structures (manholes, drop inlets, headwalls, etc.). The layout shall also include centerline stake with cut-fill lines for each channel and any areas of excavation and re-grade. The certified layout and cross-sections surveyed must be submitted to the WVDEP for approval prior to beginning construction for each item.

2.3.5 As-Built plans shall be provided to the WVDEP prior to the Final Inspection Meeting. The As-Builts shall include one (1) disc of the plans in PDF and a currently supported version AutoCAD on CD-ROM or DVD and one (1) paper copy of the plans with the same size and scale as contained on the original plans.

The As-Builts Shall include the following:

1. The As-Builts shall show all pay items remaining on site post construction.

2. The As-Builts shall show all horizontal and vertical dimensions of all installed components (i.e. pipes, drop inlets, mine seals, drainage channels, splash pads and manholes) as well as surveyed locations of the installed structures.

3. Cut-fill sections shall have the area of the section marked by the section for easier calculation.

4. The As-Builts shall have the lines on the plans shown in either color or line type to distinguish between our original plan lines, the contractor’s original survey lines and the final grade lines. This will apply for all cross-sections on the project.

5. All waste and borrow areas shown on the As-Builts.

6. All work completed by the Professional Surveyor (licensed in the State of West Virginia) on the As-Builts must be certified by the Professional Surveyor as to completeness and accuracy of the plan submittal.

7. As-builts must show total quantities for all items on the project. The format shall be in a tabular form.

2.4 Method of Measurement and Basis of Payment

There shall be no measurement of the “Construction Layout” item as it is a lump sum. The lump sum payment also shall include the cost for providing the WVDEP pre- and post-construction ground line cross-sections for all disturbed or re-graded areas including borrow areas and “As-Built” Plans as described herein. Said lump sum bid cannot be more than 5% of the TOTAL AMOUNT BID for the project. Neither deduction nor increase will be made in the lump sum “Construction Layout” item amount regardless of decreases or increases in the final total contract amount or for any other cause. This item will be paid according to the following schedule: up to fifty percent of the total bid amount of this item will be released for payment when all required layout work is completed. The remaining fifty percent will be paid on the final invoice once the As-Builts are submitted and approved.

2.5 Pay Item

Item 2.1, “Construction Layout”, per lump sum cannot be more than 5% of the TOTAL AMOUNT BID for the project.

3.0 QUALITY CONTROL

3.1 Description

This work shall consist of testing for verification that the materials supplied and the work performed are in accordance with these specifications.

3.2 Materials

3.2.1 The Contractor shall submit a minimum of two (2) copies of shop drawings, catalog cuts and material certifications (as applicable) to the Engineer for all offsite materials to be incorporated into the work. Written approval from the Engineer will be required prior to incorporation of these items into the work.

3.2.2 The Contractor shall submit at least two (2) copies of the results of all tests conducted on in-situ material, concrete and grout to be used in this project.

1. Soil tests to determine the lime and nutrient requirements of the areas to be re-vegetated.

2. Compressive strength test for grout in accordance with ASTM C109, and for concrete in accordance with ASTM C31 & C39.

3.2.3 Tests Required

Soil Test As needed to determine Nutrient tests NPK Material Certification Manufacture certification on all materials on project Grouted Mine Seal Testing for compressive strength and slump

3.3 Construction Methods

3.3.1 The Contractor shall furnish the services of his own testing laboratory or select an independent state certified testing laboratory. The laboratory must be approved by the WVDEP.

The Contractor shall furnish a certified technician to perform the required testing at the project site. The technician shall submit a copy of his certification and a copy of that certification shall be submitted to the WVDEP at the Pre-Construction Conference. The technician shall be responsible for chain of custody of any samples that must leave the site.

3.3.2 Testing for soil nutrient and lime requirements for soil, compressive strength tests for concrete and grout, shall be performed as required by these specifications and or ordered by the Engineer or his representative in writing. The Engineer will determine the locations and time of any testing herein specified and the need and extent of any testing in addition to that which is herein specified.

3.3.3 Only new and first class materials, which conform to the requirements of these Specifications, shall be used unless specified otherwise. When requested by the WVDEP, the Contractor shall furnish a written statement of the origin, composition, and manufacturer of any or all materials (manufactured or produced) that are to be used in the work. The sources of supply of each material used shall be approved by the WVDEP before delivery is started. If, at any time, sources previously approved fail to produce materials acceptable to the WVDEP, the Contractor shall furnish materials from other approved sources.

3.4 Method of Measurement and Basis of Payment

There shall be no measurement of the “Quality Control” item as it is a lump sum. The quantity of quality control work done will be paid at the contract lump sum price bid for this item. Said lump sum bid cannot be more than 3% of the TOTAL AMOUNT BID for the project. Nothing herein shall be construed to limit or preclude partial payments on this item up to 100% of the bid amount. No deduction or increase shall be made in the lump sum “Quality Control” item amount regardless of decreases or increases in the final total contract amount or for any other cause.

3.5 Pay Item

Item 3.1, “Quality Control”, per lump sum cannot be more than 3% of the TOTAL AMOUNT BID for the project.

4.0 SITE PREPARATION

4.1 Description

4.1.1 Clearing & Grubbing

Work performed under this section shall include the removal and disposal of all trees, stumps, shrubs and any other vegetation, wood, debris, garbage of any nature from those areas specified below and/or shown on the plans and/or any other areas as approved by WVDEP. This work shall also include the preservation from injury to all vegetation, utilities or other objects to remain as well as all other ancillary work as described.

4.1.2 Stabilization Fabric

Stabilization fabric shall be woven fabric that is used to stabilize any soft areas on an access road surface prior to stone application.

4.1.3 Spill Containment Area

Spill containment measures shall be used for fuel and lubricant storage areas. All containers, barrels, buckets, cans, etc., are to be legally disposed of offsite. Used lubricants are to be disposed of according to state law to minimize pollution to the local surface and ground water supplies. Spills are the responsibility of the Contractor and need immediate clean up and maintained at no expense to the State. Fuel tanks manufactured with secondary containment are desirable; the minimum secondary containment shall be 110 percent. In the event of a spill, the Contractor is required to call the emergency spill line (ph. 1-800-642-3074).

4.1.4 Temporary Pipes Beneath Stabilized Construction Entrance

Work performed under this section shall be performed in accordance with the drawings and as specified herein. The work shall consist of furnishing all labor, equipment, and materials necessary to construct and remove the temporary pipes.

4.2 Materials

4.2.1 Any equipment and construction materials required for clearing, grubbing, grading and stone placement.

4.2.2 Stabilization fabric shall be Mirafi 600X or equal.

4.2.3 Material for the “Temporary Pipes Beneath Stabilized Construction Entrance” shall consist of 24” diameter pipe.

4.3 Construction Methods

4.3.1 The specific areas to be cleared and grubbed are as shown on the Consturction Drawings and are generally described as, but not limited to, those specific areas of excavation, backfill, soil borrow or drainage structure installation.

4.3.2 The Contractor shall clear the site within the limits of the areas to be regraded. The WVDEP shall exercise control over clearing and shall designate all trees, plants and other objects to be removed or to remain.

4.3.3 Clearing and grubbing shall be completed prior to initiation of earthwork operations only to the extent necessary to complete the work. The Contractor shall confine his operations strictly to required areas. If he clears and grubs beyond the required areas, whether knowingly or accidentally, he shall, at his expense, replant and otherwise restore all areas outside the limit lines to a condition equal to that existing prior to start of work.

4.3.4 All timber eight (8) inches in diameter and larger at stump height shall be saw cut prior to grubbing operations. Timber shall be topped with the branches removed and stacked and stockpiled in an appropriate manner in an accessible location approved by the WVDEP on the property from which it was cut. Timber to be stockpiled shall not be pushed down by equipment prior to being cut nor can it be indiscriminately shoved into a stockpile.

4.3.5 All stumps, roots, buried logs and brush shall be removed. Grass, however, may be incorporated into the resoiling material. Taproots and other projections over 1½ inches in diameter shall be grubbed out to a depth of at least ten (10) inches below the planned subgrade or slope elevation. All holes remaining after the grubbing operation shall have the sides broken down to flatten out the slopes, and shall be filled with suitable materials, moistened and properly compacted.

4.3.6 Cleared and grubbed areas shall be worked such that positive drainage is provided to prevent ponding of water except for the purpose of sediment control sumps as approved by the WVDEP.

4.3.7 All organic material shall be removed from the site and disposed of in a manner approved by the WVDEP. The trees removed shall be windrowed on site. If a the material removed cannot be windrowed, the tree top and stumps can be chipped or disposed of offsite to an approved location.

4.3.8 All other materials generated from required clearing and grubbing operations shall be removed and disposed of by the Contractor. All garbage, construction debris, mining debris, etc., shall be disposed of in approved waste areas or landfills (disposal tickets must be furnished to WVDEP). It shall be the responsibility of the Contractor to obtain, at no expense to the WVDEP, all necessary waste and borrow areas or landfills for the disposal of waste materials in accordance with any applicable local, state, and/or federal regulations including compliance with NEPA requirements (See Section III for NEPA Compliance Schedule). All waste and borrow areas must be approved by the WVDEP and the Contractor must provide a reclamation plan for approval. In addition, for all waste and borrow areas outside the construction limits, the Contractor must obtain from the property owner a right-of-entry agreement in which the property owner indemnifies and holds the WVDEP harmless from any injury or damages whatsoever resulting from the use of the property.

It shall be the sole responsibility of the Contractor to correctly locate and avoid all underground, on-ground, and overhead utilities, facilities and other structures and constructions, and for that purpose, shall employ all necessary precautions and methods to ensure avoidance of and damage to such constructions. In the event damage does occur, the Contractor shall notify the affected Owner and the WVDEP immediately and make or have made all necessary repairs and bear the expense thereof and resulting damage caused thereby.

4.3.9 Buildings, mining related structures, existing ruins and foundation structures, shall be removed to the existing ground level, which operation shall include removal of concrete slabs or any other type of floors and/or walls resting upon the ground.

Basement floors shall be shattered. Pits, trenches, holes or basements shall be backfilled. Coal and/or refuse spillage, concrete, cinder blocks, and foundation ruins shall be excavated and/or removed and incorporated into the fill material.

Demolished concrete, cinder blocks and foundation ruins to be incorporated into the fill shall be of size less than 2 feet in any dimension. Boulders, structures, concrete pads and foundations shall be broken and buried in the deepest portion of the fill areas. Broken pieces shall not be consolidated in one area, but shall be dispersed throughout the fill areas to ensure that compaction requirements are achieved.

4.3.10 Trash, garbage, railroad ties, roofing shingles, tires, plastic, metal and other unsuitable material resulting from demolition shall be disposed of by the Contractor at his/her own responsibility and expense outside the work limits in an approved landfill, as approved by the Engineer, unless otherwise directed (disposal tickets must be furnished to WVDEP). Bricks and stone blocks shall be disposed as per Section 4.3.9 of these specifications.

4.3.11 Should offsite disposal or borrow be necessary, the Contractor shall observe the NEPA Compliance Schedule as per Section III of the Special Provisions.

4.3.12 Existing site access roads shall provide safe, all-weather access to the site. These existing roads, including stoned and paved roads, shall be maintained during construction and left in a better than or equal to condition. The Contractor is responsible for locating and avoiding all underground and overhead utilities and constructions during access road grading and maintenance.

4.3.13 “Stabilization Fabric” shall be placed on a prepared subgrade prior to placement of surfacing and resurfacing stone.

4.3.14 Any existing property markers disturbed or removed during construction activities shall be replaced accurately and to an “as good as” or “better than” condition and as approved by the WVDEP. This work will be paid under Section 2.0 Construction Layout of these Specifications.

4.3.15 The “Temporary Pipes Beneath Stabilized Construction Entrance” shall be installed prior to the stone being placed on that portion of the Stabilized Construction Entrance and per the details shown in the plans. The pipes shall be placed in the existing drainage ditch and shall be long enough in length to extend past the stone on both ends as to prevent the stone from capping the open pipes.

4.4 Method of Measurement and Basis Of Payment

4.4.1 The “Site Preparation” item shall be paid per lump sum price. The amount shall not exceed 10% of the TOTAL AMOUNT BID for each bid. Payment shall be for all materials, labor, materials, equipment, and incidentals necessary to complete the work. This includes all clearing grubbing and demolition required on the project site.

No deduction will be made, nor will any increase be made, in the lump sum “Site Preparation” amount regardless of decreases or increases in the final total contract amount or for any other cause.

4.4.2 The “Stabilization Fabric” item shall be paid per square yard and shall include all materials, labor, equipment, and incidentals necessary to complete the work. This item will include any and all stabilization fabric used on the project.

4.4.3 The “Temporary Pipes Beneath Stabilized Construction Entrance” item shall be paid per linear foot and shall include all materials, labor, equipment, and incidentals necessary to complete the work. This item is for the pipes only. The Stabilized Construction Entrance will be under Section 5.0 of the Specifications.

4.5 Pay Items

Item 4.1, “Site Preparation”, per lump sum. Cannot be more than 10% of the “Total Amount Bid” for the project.

Item 4.2, “Stabilization Fabric”, per square yard.

Item 4.3, “Temporary Pipes Beneath Stabilized Construction Entrance”, per linear foot.

5.0 EROSION & SEDIMENT CONTROL

5.1 Description

This item shall consist of furnishing all materials, equipment, labor and incidentals necessary for the installation of Straw Wattles, Sediment Control Barrier (e.g. silt fence, super silt fence or silt saver) structures, and Stabilized Construction Entrances as designated in the Drawings. Sediment control shall be placed on regraded outslope areas concurrent with construction and prior to revegetation. Additional quantities may be added at the discretion of the WVDEP.

The CONTRACTOR shall follow and adhere to the erosion and sediment controls plan as shown within the plans and specifications. This plan shall include measures to be utilized for temporary and permanent sediment and erosion control. This plan shall also include the measures as outlined herein. The plan does not relieve the CONTRACTOR of his/her responsibility to be in compliance with any and all permits. All costs associated with meeting the federal and/or state regulations shall be the sole responsibility of the Contractor.

NOTE: Erosion and Sediment controls shall be installed in accordance with the approved plan and as shown on the plans as soon as possible in the construction sequence. These controls shall be properly maintained throughout the duration of the contract. No invoices or payments for any items within this contract will be processed without all required Erosion and Sediment controls properly installed and maintained in good working order.

Compliance of the Erosion and Sediment controls shall be determined by WVDEP AML personnel.

The following are the minimum requirements of the plan and/or the NPDES BMP Manual.

VEGETATIVE PRACTICES

Except as noted below, stabilization measures shall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased, but in no case more than fourteen days after the construction activity in that portion of the site has permanently ceased.

Where the initiation of stabilization measures by the fourth day after construction activity temporarily or permanently ceases is precluded by snow cover, stabilization measures shall be initiated as soon as conditions allow.

Where construction activity will resume on a portion of the site within 14 days from when activities ceased, (e.g., the total time period that construction activity is temporarily halted is less than 14 days) then stabilization measures do not have to be initiated on that portion of the site by the seventh day after construction activities have temporarily ceased.

Areas where the seed has failed to germinate adequately (uniform perennial vegetative cover with a density of 70%) within 30 days after seeding and mulching must be reseeded immediately, or as soon as weather conditions allow.

Diversions must be stabilized prior to becoming functional.

EROSION & SEDIMENT CONTROL CONSTRUCTION SEQUENCE

Install stabilized construction entrance as shown on site plans.

Install perimeter sediment control devices as shown on site plans.

Clear and grub site, with sequencing to limit excessive erosion.

Separate and stockpile topsoil.

Provide sediment control for any topsoil stockpiles.

Commence rough grading of site. Continue to maintain and inspect all erosion and sediment controls.

Install additional erosion and sediment controls as shown on site plans.

Fine grade site.

Permanently seed and mulch all disturbed areas within 7 days of reaching final grade Upon completion of project including adequate stabilization, remove all remaining erosion and sediment controls.

5.2 Materials

5.2.1 Sediment Control Barriers: silt fencing and super silt fencing materials and installation shall meet all applicable requirements of the manufacturer’s specifications.

Even with the specific prior approval of the WVDEP, the use of silt fence shall be limited to relativity flat areas and the toe of selected slopes.

5.2.2 Stabilized Construction Entrances shall consist of coarse 3-6 inch stone over a geotextile fabric.

5.3 Maintenance

5.3.1 During the course of the project, sediment control barriers shall be maintained in sound condition and accumulations of silt, which may threaten their effectiveness, shall be removed. Silt removed from the sediment control structures shall be taken to an approved disposal area.

5.3.2 The Stabilized Construction Entrance shall be maintained in a condition that will prevent tracking or flowing of sediment onto public rights-of-way. This may require periodic top dressing with additional stone as conditions demand and repair and/or cleanout of any measures used to trap sediment. All sediment spilled, dropped, washed or tracked onto public rights-of-way must be removed immediately.

Wheels on all vehicles shall be cleaned to remove sediment prior to entrance onto public rights-of-way. If washing is required, it shall be done on an area stabilized with stone and which drains into an approved sediment trapping device. If the street is washed, precautions must be taken to prevent muddy water from running into waterways or storm sewers.

At a minimum, all erosion and sediment controls on the site will be inspected at least once every four calendar days and within 24 hours after any storm event of greater than 0.25 inches of rain per 24-hour period.

All controls should be cleaned out when sediment reaches one half the sediment capacity of that control.

Inspection and maintenance records must be kept onsite.

5.4 Installation

5.4.1 Sediment Control Barrier:

Silt-Saver WBSF-6 Silt Fence (or equivalent) installation specification: Four foot stakes are driven to a depth which allows 24” of fabric to be above ground. The fabric is stretched along the perimeter of the stakes and pulled tightly and held in place with boding strips. The bonding strips (typically 1”x3/8”x 24”) are attached to the stake with staples. The remaining fabric is now tucked into the trench forming a “J” and when filled with dirt create a ground bite. With its firm attachment to each post, the load is now spread to the total linear strength of all posts within the system.

5.4.2 Stabilized Construction Entrance: A stabilized construction entrance shall be required at the access point of the construction site. The stabilized construction entrance shall consist of filter fabric and a minimum of six (6) inches of 3” to 6” stone. The stone entrance shall be a minimum of one hundred (100) feet long and thirty (30) feet in width. This stone construction access must conform to the detail drawings shown in the plans. Please note that the dimensions for this stabilized construction entrance are different from the typical dimensions.

5.5 Removal

Upon completion of the project (as determined by the Regional Engineer) including adequate stabilization, all temporary erosion and sediment controls shall be removed from the site, including but not limited to water breaks, water break outlet protection, and silt fencing. The site should be left with a clean/neat appearance and any disturbed areas shall be revegetated. Rock outlet protection for permanent drainage structures shall not be removed once the project is complete.

5.6 Method of Measurement and Basis of Payment

5.6.1 Silt-Saver WBSF-6 Silt Fence or equal shall be paid per linear foot and include all materials, labor, equipment, and incidentals necessary to complete the work.

Additionally, payments shall constitute full compensation for any required maintenance, sediment removal and disposal.

5.6.2 Stabilized Construction Entrances shall be paid per ton based upon weigh tickets from the commercial supplier of the stone that is delivered and placed at the locations identified on the plan drawings and shall include all materials, labor, equipment, and incidentals necessary to complete the work. Additionally, payments shall constitute full compensation for any required maintenance including periodic top dressing with additional stone and removal at completion of the project work.

5.7 Pay Items

Item 5.1, “Silt-Saver WBSF-6 Silt Fence or equal”, per linear foot.

Item 5.2, “Stabilized Construction Entrance”, per ton.

6.0 REVEGETATION

6.1 Description

This work shall cover all operations incidental to the establishment of vegetation within the limits of construction as shown on the Drawings and any other areas as approved by the WVDEP. This work also includes the furnishing and the application of fertilizer, agricultural limestone and mulch and the furnishing and sowing of seed, all in accordance with these Specifications and as designated herein.

No areas outside the limits of construction shall be disturbed without prior approval from the WVDEP in order to ensure that Right-of-Entry has been obtained.

Any areas outside the limits of construction, disturbed by the Contractor shall be re-vegetated by the Contractor at no expense to the WVDEP.

6.2 Materials

6.2.1 Fertilizer

The commercial fertilizer to be used shall consist of 10-20-20 grade of uniform composition and furnished in standard containers. These containers, in accordance with applicable state and federal laws, must be clearly marked with the following information:

a. Weight

b. Name of Plant Nutrients

c. Guaranteed Nutrients Percentages

Fertilizer shall be applied at a minimum rate of 1,000 lbs./acre. Fertilizer shall be applied immediately to all areas reaching final grade.

6.2.2 Lime

The lime to be used will be an agricultural grade pulverized limestone containing a minimum of 75% total carbonates or calcium carbonate equivalent. Fineness will be such that no less than 70% will pass through a #100 sieve and 100% will pass through a #20 sieve.

Lime shall be applied immediately to all areas requiring seeding reaching final grade.

6.2.3 Seed Mixtures

The variety of grass, legume and grain seed furnished for the project shall bear a tag, in accordance with applicable state and federal laws, with the following information listed:

1. Lot NumberSeed Producers Name

2. Percent Purity

3. Percent Germination

4. Date of Germination Testing

5. Weed Seed Content (should be <0.25% by weight)

All leguminous seed shall be inoculated with the specified strain of rhizobia which shall be a pure culture of bacteria selected for maximum vitality. No rhizobia shall be used which has passed the expiration date on each package. The inoculant shall be applied at five times the recommended rate except when used in a hydro seeding mixture when the rate will be ten times the recommended rate.

6.2.3.1 Temporary Seed Mixture

All stockpiles or other disturbed areas which will require further disturbance in which the additional disturbance will be delayed for a period of two (2) weeks or longer shall be vegetated according to the following guidelines.

SPRING SUMMER FALL WINTER

Variety of 3/15-5/15 5/15-8/15 8/15-10/15 10/15-11/15 Seed -----------------lbs/acre---------------------

Annual Ryegrass 40 (Lolium multiflorum)

German Millet * 40 (Setaria italica)

Cereal Rye (Secale cereale) 100

*Do not use Japanese Millet or Kentucky 31

All areas to be temporarily seeded which are to be re-disturbed shall be fertilized with 500 lbs./acre of 10-20-20. All areas reaching final grade to be temporarily seeded shall be fertilized according to Section 6.2.1. Lime shall be applied according to Section 6.2.2 and mulched according to Section 6.2.4.

6.2.3.2 Lawn Seed Mixture

Existing lawn areas disturbed by construction shall be reseeded using the following mixture:

Variety Rate Minimum Specifications of Seed* lb/1000 sq. ft. 0% Purity % Germination

Red Fescue 0.45 98 85 (Festuca rubra)

Kentucky Bluegrass 0.90 85 75 (Poa pratensis)

Perennial Ryegrass 0.70 90 75 (Lolium perenne)

Annual Ryegrass* 0.20 95 85 (Lolium multiflorium) *Use Annual Ryegrass only in mixtures seeded after August 1 and prior to May 15.

*For shaded areas add the following quantity of seed to the standard mix:

- add 4 lbs./1,000 sq.ft. Red Fescue (Festuca ruba)

6.2.3.3 Permanent Seed Mixture

Permanent vegetation shall be established on all areas reaching final grade or other areas not likely to be disturbed by further construction activities.

Any areas which reach final grade between March 15 - May 15 or August 15 - October 15 shall be seeded with the appropriate temporary seed mixture according to Section 6.2.3.1. These areas shall then be reseeded with a permanent seed mixture, without Annual Ryegrass, during the next defined seeding period according to this section. The actual date of permanent seeding will require the Engineer's approval.

SPRING FALL

Variety 3/15 - 5/15 8/15 - 10/15 of Seed* --------------lbs/acre----------

Orchardgrass 30 30 (Dactylis glomerata)

Birdsfoot Trefoil (1) 15 15 (Lotus corniculatus)

Red Clover 10 10 (Trifolium pratense)

Annual Ryegrass (2) 25 25

(Lolium multiflorum)

Spring Oats 35 0 or

Winter Wheat 0 90

(1) Herbaceous legumes must be treated with the appropriate bacterium before seeding.

(2) Use Annual Ryegrass only in mixtures seeded after August 1 and before May 1.

*Use only certified “blue tag” seed. Seed-rate suggested is for pure live seed (PLS) in lbs/acre.

*For shaded areas add the following quantity of seed to the standard mix:

- add 3 lbs/acre of White Clover

- add 10 lbs/acre of Perennial Rye

- add 10 lbs/acre of Blue Grass

- add 50 lbs/acre Cover Grain (Wheat or Rye)

6.2.4 Mulch Material

Mulching procedures shall take place immediately following seeding. Mulch material shall consist of erosion matting, straw, or wood cellulose fiber.

6.2.4.1 Straw

Straw mulch shall include baled wheat or oats straw, or baled grass hay.

Straw mulch shall be dry and reasonably free of weed, seeds, sticks, or other foreign material. Straw mulch shall be applied at a rate of 2 tons/acre. (No baled grass hay shall be used in yard areas.) The straw mulch shall be anchored with 100 gallons/acre asphalt emulsion or 750 lbs./acre wood cellulose fiber. Straw mulch shall be required when seeding by hand.

6.2.4.2 Wood Cellulose Fiber

Wood cellulose fiber may be used at a rate of 1,500 lbs./acre or as approved by the WVDEP. A mulch for use with the hydraulic application of seed, fertilizer, and lime shall consist of wood cellulose fiber. It shall be processed in such a manner that it will contain no growth or germination inhibiting factors and shall be dyed green. It shall be manufactured in such a manner the (1) after addition and agitation in slurry tanks with fertilizers, lime seeds, and water, the fibers in the material will become uniformly suspended to form a homogeneous slurry and (2) the material, when hydraulically sprayed on the ground, will form a blotter-like ground cover impregnated uniformly with seed, will allow rainfall to percolate to the underlying soil.

Wood cellulose shall only be used on areas that have been approved by

WVDEP.

The wood cellulose fiber shall be supplied in packages having a gross weight not to exceed 100 pounds. Weight specifications of this material from suppliers, and for all applications, shall refer only to air dry weight of the fiber material. Air dry weight is based on the normal weight standard of the Technical Association of the Pulp and Paper Industry for Wood Cellulose and is considered equivalent to 10 percent moisture. Each package of the cellulose fiber shall be marked by the manufacturer to show the air dry weight content.

6.2.5 Water

Water shall be reasonably free of injurious and other toxic substances harmful to plant life. The source of water is subject to the approval of the WVDEP.

6.3 Construction Methods

6.3.1 All revegetation activities shall be conducted immediately following completion of final grading so as to utilize the fine soil material as a seedbed before this material is lost via subsequent rainfall.

6.3.2 On sites where appropriate equipment can operate, the seedbed shall be prepared by breaking up surface crusts and loosening the soil material to a minimum of three

(3) inches. Disking, harrowing, cultipacking or other acceptable tillage operations may be used to prepare the seedbed. On sites where appropriate equipment cannot operate, the seedbed shall be prepared by “tracking in” with a dozer (perpendicular to the slope) a minimum of 1 ½” grouser depth or scarifying by other approved methods.

6.3.3 Seedbed preparation and seeding shall take place progressively as re-graded areas are brought to final grade.

6.3.4 All seeding operations shall be performed immediately following seedbed preparation in such a manner that the seed is applied in the specified quantities uniformly on the designated areas.

6.3.5 Seed Application shall consist of approved hydro seeding methods where feasible.

Any seed left in hydro seeder overnight shall be re-inoculated before that seed shall be applied. Other methods of seed application may be utilized for site-specific reasons when approved by the WVDEP.

a. Apply and incorporate fertilizer during seedbed preparation.

b. Apply fertilizer in hydro seeding mixture following seedbed preparation.

If seed is applied by a dry method, the grasses, legumes and grains must be applied separately due to separation during application.

6.3.6 Any area failing to establish a vegetative stand due to weather or adverse soil conditions shall be reseeded, re-limed, re-fertilized and re-mulched as approved by the WVDEP.

6.3.7 The Contractor shall maintain all seeded areas until final acceptance of the project.

All areas shall be protected from any further equipment traffic and any damaged areas shall be repaired and reseeded. Maintaining seeded areas shall consist of watering, refilling, re-fertilizing, re-liming, re-seeding, and re-mulching erosion gullies and all bare areas.

6.3.8 Lime rate shall be formulated from soil test results. In the absence of soil testing, a rate of three (3) tons per acre will serve as a preferred minimum.

6.3.9 Satisfactory soil is considered to be reasonably free of subsoil, clay clumps, stones and other objects over four (4) inches in one dimension, and shall be free of objectionable material.

6.3.10 A second and third seeding will be applied as needed, or as approved by the

WVDEP.

6.3.10.1 Second Step Seeding

The second step seeding will take place during the first defined seeding period following the initial seeding. No payment shall be made for second step seeding, this work is part of the contract if completed before the final inspection or shall be considered warranty if completed after the final inspection. The following shall be used as a guide for second step application.

a. For areas with less than 50 percent stand or subject to severe erosion, apply the complete amount of seed, fertilizer, lime much as specified.

b. For areas with over 50 percent stand apply one half the original fertilizer, lime and seed. If erosion is a problem, apply one half of the original mulch specified in Section 6.2.4.

6.3.10.2 Third Step Seeding

The third step seeding shall consist of spot applications on areas not showing a satisfactory stand. The seeding shall take place at the next defined seeding period following the second step application. The quantity of material to be used shall be determined on the same basis as the second step application in Section 6.3.10.1.

6.4 Method of Measurement and Basis of Payment

6.4.1 Payment will be made at the contract per lump sum for these items, which price and payment shall be full compensation for doing all the work herein described in a workmanlike and acceptable manner; including all materials, labor, equipment and incidentals necessary to complete the work. Payment for seeding includes all seeding (i.e. – temporary, first and second seeding). No additional payment will be made for second or third seeding.

6.4.2 Temporary seeding will be incidental to the seeding item and no separate measurement or payment will be made for temporary seeding. There will be no separate payment for maintaining seeded areas. No payment will be made for seeding after the final inspection. All work performed after the final inspection will be done under warranty.

6.5 Pay Items

Item 6.1 “Revegetation”, per lump sum.

7.0 MINE SEALS

7.1 Description

Grouted mine seals shall be installed at the locations shown on the plans by utilizing grout as shown in the details. Materials shall conform to those listed below.

7.2 Materials

7.2.1 Grout to be used for the dry mine seals. The minimum required compressive strength of the grout shall be 3000 psi @ 28 days. The grout shall have a maximum slump of four (4”) inches and tested in accordance with ASTM C143. All testing shall be the responsibility of the contractor as part of Section 3.0 of these specifications. Two sets (4 cylinders) of test cylinders per day shall serve as a minimum. Grout test cylinders shall be made and tested in general accordance with ASTM C-31 and C-39 respectively. One cylinder shall be tested at 7 days age, two test cylinders shall be tested at 28 days age, and one test cylinder shall be held as a spare. There shall be no test cylinder for 14 days age. The test cylinder for 7 days age must break at 60% of the 28 day strength. Minimum testing shall be two tests per day and every fifty (50) cubic yards thereafter.

7.2.2 HDPE Pipes: The HDPE…