TECHNICAL SPECS ARFQ DEP25-9 KEMPTON REFUSE REHABILITATION.pdf

CONSTRUCTION SPECIFICATIONS

FOR THE

WVDEP DIVISION OF LAND RESTORATION

OFFICE OF ABANDONED

MINE LANDS AND RECLAMATION

FOR

KEMPTON REFUSE REHABILITATION

TUCKER AND PRESTON COUNTY, WV

APRIL 2024

THE THRASHER GROUP PROJECT #101-030-10281

600 WHITE OAKS BLVD – P.O. BOX 940 – BRIDGEPORT, WV 26330 – (304) 624-4108 – FAX: 624-7831 thrasher@thrashereng.com – www.thrashereng.com mailto:thrasher@thrashereng.com rhovatter rhovatter Pen Dilantin

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. NPDES STORMWATER REQUIREMENTS

VII. CONSTRUCTION SIGN

VIII. CONTRACTOR INFORMATION FORM (AVS)

II. TECHNICAL SPECIFICATIONS

1.0 MOBILIZATION AND DEMOBILIZATION

2.0 CONSTRUCTION LAYOUT

3.0 QUALITY CONTROL

4.0 SITE PREPARATION

5.0 EROSION & SEDIMENT CONTROL

6.0 REVEGETATION

7.0 DRAINAGE STRUCTURES

8.0 UNCLASSIFIED EXCAVATION

9.0 MINE SEALS…………………..…………………………………………………………………..89

10.0 ADMINISTRATION…………………………………………...………………………………….90

I. SPECIAL PROVISIONS

I. LOCATION / SITE DESCRIPTION

This project is within the location of a previous AML reclamation project which reclaimed an existing refuse pile, created natural stream channels, and installed an AMD treatment facility.

Since that time some of the features have failed and new issues have developed.

The “Existing Failed Reforestation Area” as shown on Sheet 7 of the Construction Drawings was an area that was originally planted with trees. This area has not had success at sustaining trees or vegetation. This area will be utilized for the placement of excess excavated material generated from the excavations of this project. Upon completion of the earthwork procedures, this area will be regraded, imported topsoil will be added and the area will be seeded. Please see the revegetation plan consisting of plants conducive to the growth and development of butterflies, specifically Monarch butterflies in this area.

There are four (4) access roads associated with this project. Access Road #1 will serve as a access to the Existing AMD Treatment System and will remain in place upon completion of the project. Access Road #2 will serve as access to the Existing Failed Reforestation and will remain in place with the exception of the portion of the roadway that crosses the existing channel, this area will be restored to approximate original contour. Access Road #3 will begin at the location of Stabilized Construction Entrance #3. This access is referenced to as a

Temporary Road, the contractor shall place this access in areas minimalizing disturbance to the existing refuse and stabilization may be required in some areas. This road will be regraded and seeded as defined in Section 6.0 of the specification. Access Road #4 will serve as access to the Existing Limestone Pond and will remain in place upon completion of the project.

There are several areas within the natural stream channels that have experienced erosion in the beds due to large rain events in recent years. These areas are defined as “Proposed Channel

Repair” and are numbered 1-9. These eroded channel areas have been redesigned as grouted riprap channels to help minimize the erosion in the future.

There are (4) existing seep areas that have developed. These areas are defined as “Proposed

Seep Collector” and are lettered A-D. Seep Collector A-C will be excavated and will be backfilled with aggregate to allow the seepage from these areas to naturally drain to an existing stream channel downslope of these areas. Seep Collector D will contain piping to direct the water to an existing stream channel downslope of this area.

There is a small Existing Limestone Pond located on the Southern end of the project that will be excavated and filled with Limestone.

There are two (3) existing ditches that will be reclaimed as part of this project. These ditches are defined as “Existing AMD Collection Channel”, “Existing Roadside Collection Channel”, and “Existing Vegetated Channel”. The reclamation of these channels is represented by

“Channel Reclamation 1-3”. The Existing AMD Collection Channel currently receives runoff from an existing pipe exiting the existing AMD Pond which conveys the water several hundred feet to the south where it enters the existing AMD treatment facility. The Existing

Roadside Collection Channel collects runoff from main access road and conveys the water several hundred feet to the south where it enters the existing AMD treatment facility. The

Existing Vegetated Channel runs parallel to an Existing Stream Channel near the AMD treatment ponds. This channel will not be required. The three referenced ditches collects a significant amount of surface water runoff which is also directed into the treatment facility.

The removal of these channels and the construction of the “Proposed AMD Collection

Channel” and the “Proposed Road Channel Extension” as referenced in the next paragraph will reroute clean water from entering the Treatment System.

There will be three (3) new channels constructed as part of this project. The “Proposed AMD

Collection Channel”, “Proposed Roadside Channel Extension” and the “Proposed Diversion

Channel”. The “Proposed AMD Collection Channel” will collect water from the “Proposed

Limestone Pond” and relay this runoff directly to the existing channel below. The “Proposed

Road Channel Extension” will collect water from the Existing Roadside Collection Ditch and relay this runoff directly to the existing channel that runs near the AMD treatment facility.

The “Proposed Diversion Channel” will route water away from the Slip Repair and route this runoff directly to the existing channel below.

There is an existing Clean Water Channel that will be reclaimed as part of this project.

A small Slip Area has developed on the site. A subsurface investigation has been conducted on the slide area to determine the depth and limits of the slide. Based upon this information a plan has been developed to repair the slide. The seepage areas have been investigated, and a plan has been put together to install an drainage system and regrade the areas.

The existing AMD treatment facility is currently not operating correctly and needs to be maintained. Currently the system consists of an equalization pond, a SAP cell, and a constructed wetland. The proposed design will utilize a Siphon System to flush the Proposed

Limestone Bed into the Proposed Sump and then into the Proposed Wetland.

Directions to Site:

From bridge at Thomas, take US 219 North for 3.7 miles, then turn right onto Kempton

Road. Follow Kempton Road for 1.2 miles, then turn left onto a gravel road. Continue for

0.4 miles to the site.

The GPS location is as follows: 39° 12’ 18.92”N -79° 30’ 4.36”W

II. SCOPE OF WORK

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

General

The locations represented below may be accessed by various Access Road Locations. All areas utilized for access will require that the Stabilized Construction Entrance is in place and is working properly. All access roads will require that the associated drainage structures are in place and the road is stabilized prior to use.

Overall Site Procedures

The following general procedures will be:

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub areas.

• Install utilized Access Road, including all drainage structures and stabilization procedures.

• Begin Material Disposal during grading operations.

• Regrade existing area that is not vegetated, cover with 12” of imported topsoil, seed, and mulch.

• Seed and mulch all disturbed areas.

• Final site cleanup

Access Road #1 (Permanent)

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub areas.

• Begin grading operations.

Access Road #2 (Permanent, with Exceptions)

• Install perimeter controls.

• Clear and Grub areas.

• Begin grading operations.

• Seed and mulch all disturbed areas.

• Final site cleanup

• Stations 14+50 – 15+50 will be removed and reclaimed.

This will include Culvert 2-5 and all associated aggregate.

Access Road #3 (Temporary)

• Install perimeter controls.

• Clear and Grub areas.

• Begin grading operations.

• Seed and mulch all disturbed areas.

• Final site cleanup

• This access road will be completely removed once work is completed. The area will be restored to approximate existing conditions, seeded and mulched.

Access Road #4 (Permanent)

• Install perimeter controls.

• Clear and Grub areas.

• Begin grading operations.

AMD Treatment System

• Prior to the any work being performed as shown below, the Proposed Roadside

Collection Channel will need to be installed to divert water into the existing channel as shown.

• Prior to the any work being performed as shown below, Access Road #1 will need to be installed and stabilized.

• Install perimeter controls.

• Clear and Grub the site.

• Dewater existing structures.

• Remove existing limestone from AMD treatment system.

• Demolition / disposal of existing treatment system and ancillary components and

Structures.

• Remove section of existing chain link fence.

• Construct proposed system as per design, including subsurface drains and conveyance system.

• Install new relocated chain link fence with gates.

Proposed Roadside Collection Channel Extension

• This Channel must be installed prior to any work being performed on the AMD

Treatment Plant.

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Begin grading operations.

Existing Roadside Channel (Reclamation)

• This channel will not be reclaimed until the Proposed Roadside Collection Channel.

• Install perimeter controls.

• Clear and Grub the site.

• Begin reclamation operations.

Proposed AMD Collection Channel

• This channel must be installed prior to the reclamation of the Existing AMD

Collection Channel.

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Begin grading operations.

Existing Clean Water Channel (Reclamation)

• The Proposed AMD Collection Channel must be installed prior to the following work being performed.

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Begin reclamation operations.

Diversion Channel and associated Sump

• This channel must be installed prior to the Slip Repair.

• Install perimeter controls.

• Clear and Grub the site.

• Begin grading operations.

Slip Area Repair

• The Diversion Channel must be installed prior to the following work being performed.

• Install / Maintenance Stabilized Construction Entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Install Diversion Channel and associated Sump.

• Construct subsurface drains and conveyance piping.

• Install and/or upgrade access roads.

• Construct Slip Repair.

Proposed Seep Collectors

• Install / Maintenance stabilized construction entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Install utilized Access Road, including all drainage structures and stabilization procedures.

• Excavate Seep Collector Area

• Place Aggregate and piping, if required

Existing Failed Reforestation Area / Proposed Fill Area

• Install perimeter controls.

• Clear and Grub areas.

• Install Access Road #2, including all drainage structures and stabilization procedures.

• Begin Material Disposal during grading operations.

• Regrade existing area that is not vegetated, cover with 6” of imported topsoil, seed, and mulch.

Proposed AMD Pond Rehab

• Install / Maintenance stabilized construction entrance.

• Install perimeter controls.

• Clear and Grub the site.

• Install utilized Access Road, including all drainage structures and stabilization procedures.

• Install Aggregate

The Contractor shall also be responsible for surveying, including establishing construction baseline, dewatering plan, measuring, and developing all completed quantities on the job, and the ordering, purchasing, 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 their expense, outside the limits of work conforming to the requirements of Sections 4 of these

Specifications. Wood may be burned in conformity with Sections 4 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

1. 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, burning permits from WVDNR and WVDEP Office of Air

Quality and a NPDES Stormwater Construction Permit from WVDEP Division of Water and Waste Management (DWWM)” .

A copy of the permit/permits as procured shall be furnished to the WVDEP prior to initiation of the work under this Contract.

VI. NPDES STORMWATER REQUIREMENTS

The WVDEP-AML has obtained a Construction Storm Water General Permit for this project from the WVDEP Division of Water and Waste Management (WVDEP DWWM). The registration for this reclamation project will be modified to include the Contractor as Co-

Applicant #2, with the WVDEP-AML being Co-Applicant #1. As such, the Contractor shall assume responsibility for compliance with the terms and conditions of the permit including modifications and any future correspondence such as registration renewal invoices, inspection reports, and notices of violation shall be forwarded to the Contractor. Upon award of the contract, the Contractor shall complete a Co-Applicant #2 signature page and submit the completed form to WVDEP-AML prior to scheduling a Pre-Construction Conference.

Upon receipt of the completed form, WVDEP-AML will request the WVDEP DWWM to modify the existing NPDES registration for this project to make the Contractor the Co-

Applicant #2 to the permit.

The WVDEP DWWM will notify the Contractor and WVDEP-AML when the successful transfer of registration under WV/NPDES Storm Water Construction General Permit (No.

WV0115924) is completed. A Notice to Proceed will not be issued until the contractor signs the co-applicant form and submits to the Office of Abandoned Mine Lands. Once the transfer has been completed, the WVDEP will continue to be responsible for any modification fees and annual renewal fees incurred up until the date of the final inspection of the project that occurs after completion of construction activities at the site. The Contractor shall be responsible for any and all costs associated with violations and fines assessed against the project that are a result of the Contractor’s negligence, carelessness, or failure to install permanent controls as part of the work as scheduled.

The WVDEP shall apply for a Notice of Termination (NOT) from WVDEP DWWM via the

Construction Storm Water website http://www.dep.wv.gov/Programs/stormwater/csw/Documents/Construction upon completion of construction activities at the site. The NOT shall be issued by WVDEP

DWWM upon completion of the project. The Contractor will continue to be bound by the terms and conditions of the permit until the NOT has been approved by WVDEP DWWM.

Once the project is complete, the Contractor will still bear responsibility for the NPDES registration until a NOT is received from the WVDEP DWWM.

http://www.dep.wv.gov/Programs/stormwater/csw/Documents/Construction

Co-Applicant #2 Signature Page

Co-Applicant #2: _____________________________________________

New and/or Modification of NPDES Storm Water of Construction Project Name:

BY COMPLETING AND SUBMITTING THIS APPLICATION, I HAVE REVIEWED AND UNDERSTAND AND

AGREE TO THE TERMS AND CONDITIONS OF THE GENERAL PERMIT (WV0115924) ISSUED ON

JANUARY 10, 2019, WITH AN EFFECTIVE DATE OF FEBRUARY 9, 2019, AND EXPIRATION DATE OF

FEBRUARY 9, 2024. I UNDERSTAND THAT PROVISIONS OF THE PERMIT ARE ENFORCEABLE BY LAW, VIOLATION OF ANY TERM AND CONDITION OF THE GENERAL PERMIT AND /OR OTHER APPLICABLE

LAW OR REGULATIONS CAN LEAD TO ENFORCEMENT ACTION.

I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND AM FAMILIAR

WITH THE INFORMATION SUBMITTED ON THIS FORM AND ALL ATTACHMENTS AND THAT, BASED

ON MY INQUIRING OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING THE

INFORMATION. THE INFORMATION SUBMITTED IS, TO THE BEST OF MY KNOWLEDGE AND BELIEF, TRUE, ACCURATE, AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR

SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT.

(CO-APPLICANT #2 SIGNATURE) DATE

Print Name: ___________________________________________

Print Title: ___________________________________________

Address: ___________________________________________

City: _____________________State: _______ Zip:___________

Telephone Number: (_____ )________-____________________

Email: ______________________________________________

FEIN: ______________________________________________

VII. CONSTRUCTION SIGN

The work to be performed under this Section consists of providing all labor, material, and equipment necessary to install a project sign as indicated on the detail included herein and as specified herein.

Sign face shall be 3/4" thick Marine Exterior plywood or aluminum or composite material.

Posts and cross-brace shall be No. 2 Grade Pine or Fir: kiln dried and pressure treated.

All hardware shall be manufactured from good, commercial-quality material and meet all applicable ASTM standards. Spikes and nails shall be common wire-type and shall meet

AISI steel specifications 1010 or 1020. All hardware shall be hot-dip galvanized in accordance with ASTM A-153.

The sign face shall be cut to the dimensions shown on the detail herein. The sign shall be painted with one (1) coat of primer and two (2) coats of white enamel. All exterior cut edges shall be smooth sanded, prior to painting. All edges shall be double primed. The letters, border, and strips shall be painted as shown on the detail drawing. Posts and cross-brace shall be painted with two (2) finished coats of brown enamel.

The Contractor shall bolt the sign to posts and provide the required cross-bracing. The posts shall be set in gravel base and sign erected, as shown on the drawing. One (1) sign is required and is to be located at the discretion of the Inspector.

Payment for the Work, which shall include installation of the project sign, shall be part of the lump-sum bid for "Mobilization and Demobilization".

VIII. CONTRACTOR INFORMATION FORM (AVS)

Vendor must complete the Contractor Information Form (AVS) to request an eligibility evaluation from the Office of Surface Mining Reclamation and Enforcement

(https://www.osmre.gov/programs/regulating-coal-mines/avs). This requirement applies to Contractors and their Sub-contractors and is found under OSMRE’s regulations at CFR

Title 30, Chapter VII, Subchapter R, Part 874.16:

https://www.ecfr.gov/current/title-30/chapter-VII/subchapter-R/part-874

Vendors should submit the most recent version with their bid documents. Form must be signed and dated within the last 30 days for vendors' bid to be considered for any current solicitation.

https://www.osmre.gov/programs/regulating-coal-mines/avs https://www.ecfr.gov/current/title-30/chapter-VII/subchapter-R/part-874

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, 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. This work 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. This item shall also include the installation of the project sign at the beginning of the project and the removal of the sign prior to the Final Inspection. 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 Regional Engineer.

1.2 Method of Measurement

The method of measurement for “Mobilization and Demobilization” shall be per lump sum.

1.3 Basis of payment

The bid for “Mobilization and Demobilization” shall be a lump sum and cannot be more than 5% 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.

1.4 Pay Item

Item 1.0, “Mobilization and Demobilization”, per lump sum cannot be more than

5% 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 in the plans), necessary for the proper performance of the work under this contract including borrow/waste areas. 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 Engineer. 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 of these “As-Built” Plans shall be provided and approved prior to the Final Inspection Meeting. This item will be paid according to the following schedule: 25% Pre-Construction cross sections, 25% initial layout and

LODs, 25% for layout throughout/end of construction (including surveying and submitting intermediate cross sections for review and acceptance – overlain on the

Pre-Construction cross sections), and 25% on the acceptance of as-builts. 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.

2.2 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

The Contractor shall be responsible for the proper layout of the work. The Owner 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.

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.

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 Engineer. The Contractor shall furnish a copy of their survey records for review by the Engineer and for the Owner'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 Engineer and the acceptance of all or any part of it shall not relieve the Contractor of their responsibility to secure the proper dimensions, grades, and elevations of the several parts of the work.

The Contractor shall exercise care in the preservation of stakes and benchmarks, including existing property line markers, and shall have them reset at their 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. Once the initial 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 from the initial survey must be submitted to the WVDEP for approval prior to beginning construction.

As-Built plans shall be submitted and approved by to the WVDEP prior to the Final

Invoicing. All work completed by the WV Registered Professional Surveyor on the

As-Builts must be certified by said Professional Surveyor as to completeness and accuracy of the plan submittal. The As-Builts shall be provided in two forms of electronic format in PDF and AutoCAD 2013-2020 on either CD-ROM, DVD, or USB memory stick and one 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. Show all permanent work in place, and any deviations from original plans.

2. The preferred coordinate system and elevation datum need to be specified.

3. Show all horizontal and vertical dimensions (including invert elevations) of all installed components (i.e. pipes, drop inlets, mine seals, drainage channels, splash pads, manholes, etc.), as well as surveyed locations of the installed structures. Any other items provided in the contract as deemed necessary by the WVDEP shall be included in the As-Builts.

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

5. Have the lines on the plans shown in either color or line type to distinguish between the original plan lines, the contractor’s original survey lines, any intermediate survey lines, and the final grade lines. This will apply for all cross-sections on the project, if required.

6. All waste and borrow areas shall be shown and labeled.

7. Revegetation that is paid for by acreage, shall be per plan view acreage and shall be shown on a separate AutoCAD layer. The enclosed areas shall not include any graveled surfaces, paved surfaces, roads, ponds, treatment components, all non-vegetated channels, buildings, etc. (including any non-vegetated areas).

8. In AutoCAD, the zero (0) layer shall not be used to draw on other than to insert blocks for future insertion on appropriate layer.

9. As a standard, new baseline and final contours shall be provided with 2 feet minor contours and 10 feet major contours. Major contours shall have the elevation labeled. Contour Labels shall not break the contour line (see setting in AutoCAD).

10. Any control points shall be shown with coordinates and elevations labeled. If

WV DEP provided control points, contractor shall reference elevations and coordinates to them. If no control points were set, utilized, and descriptions of each shall be provided (i.e., rebar, hub/tack, etc.).

11. Any seep collectors, cleanouts or other structures inaccessible after covering, shall be surveyed for location, prior to covering.

12. Show total quantities for all items on the project. The format shall be in a tabular form (i.e. Bid Schedule or Summary of Quantities).

13. Changes (deviations) should be on separate “Change” layer, not on the original layers from the original plan.

ITEMS TO BE IDENTIFIED AND LABELED

ITEMS AUTOCAD LAYER REQUIRED

☒ Baseline Survey after Clearing & Grubbing, if required YES

☒ Intermediate Surveys, if required YES

☒ Final Survey YES

☒ Revegetation YES

☒ Pipes, Valves, Manholes YES

☒ Mine Seals, Bat Gates YES

☒ Seep collectors, Clean Outs YES

☒ Drainage Channels & Ditches, Splash Pads, Culverts YES

☒ Ponds, Wetlands, Water Treatment Structures YES

☐ Sludge Pumps, Sludge Cells, Geo-Tube Pads, Sludge Valves N/A

☐ Buildings, Residential/Commercial Structures, Concrete Pads N/A

☒ Pump Vaults, Air Release Valves, Pump Line Connections YES

☒ Fencing around Structures and Property Lines YES

☐ Utilities (i.e. Overhead/Underground Electric, Gas, Water, Sewer) N/A

☐ Buried Lines (i.e. Electric, communication, chemical, water, sewer) N/A

☐ Gas Vents, Piezometers, Monitoring Wells, Core Drilling N/A

☒ Roads YES

☒ Unforeseen Areas (i.e. Slips, Seeps, Subsidence Areas, Boreholes) YES

☐ Other, As Defined: ____________________________________________

2.4 Method of Measurement

The Method of Measurement for “Construction Layout” shall be per lump sum. Said lump sum bid cannot be more than 5% of the "TOTAL AMOUNT BID" for the project.

2.5 Basis of payment

The basis of payment shall include furnishing, setting, maintaining, and resetting the stakes when necessary, and for furnishing all engineering personnel, equipment, materials, and all incidentals thereto, shall be by the lump sum bid for “Construction

Layout”. The lump sum payment also shall include the cost for providing the Engineer 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: 25%

Pre-construction cross-sections, 25% initial layout and LODs as outlined in

Specification 2.1, 25% for layout throughout/end of construction, and 25% on the acceptance of as-builts.

2.6 Pay Item

Item 2.0, “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. Work shall be performed to the satisfaction of the State to be considered complete.

3.2 Materials

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. At least 1 copy submitted must be electronic.

Written approval from the Engineer will be required prior to incorporation of these items into the Work.

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. At least 1 copy must be electronic.

Test sampling of concrete shall be in accordance with ASTM C172. Temperature testing of concrete will be in accordance with ASTM C1064. Slump testing of concrete will be in accordance with ASTM C143. Air content of the concrete shall be tested according to ASTM C231, ASTM C173, or ASTM C138. Concrete cylinders formed for compressive strength testing shall be formed in accordance with ASTM

C31. Concrete compressive strength testing shall be in accordance with ASTM C39.

Four concrete test cylinders shall be made and tested: one test cylinder shall be tested at 7 days age, one test cylinder at 14 days age, one test cylinder shall be tested at 28 days age, and one cylinder shall be held as a spare. Concrete must have a compressive strength of at least 4,000psi within 28 days, a slump of 1-4 inches, an air content of 6-

7.5%, and a temperature of 50°F-90°F at pouring to be acceptable, unless otherwise specified in the Plans or these Specifications. Concrete used in road crossings, such as headwalls or wingwalls for a culvert crossing a road, must meet the requirements of Section 601 of the WVDOT Standard Specifications for Roads and Bridges, 2023

Edition, and the MM-109, if applicable. In the event of a conflict between these

Specifications, the WVDOT Standard Specifications for Roads and Bridges, 2023

Edition or the MM-109 then the most stringent requirement shall prevail. In the event of a conflict between the above that is more fundamental, such as what material to use or what construction methods to employ, then the order of priority would be the MM-

109 (for roads only), then the WVDOT Standard Specifications for Roads and

Bridges, 2023 Edition (for roads or bridges only), and then these Specifications.

Outside of work on, under, or near roads and bridges, these Specifications prevail entirely. Notwithstanding the above, a conflict in one requirement does not relieve the Contractor of abiding by all other requirements in these Specifications.

For ease of reference, the WVDOT Standard Specifications for Roads and Bridges, 2023 Edition can be found at the below:

https://transportation.wv.gov/highways/TechnicalSupport/specifications/Documents/

2023_Standard_%2812-16-22%29.pdf

These requirements apply to both precast concrete and concrete that is cast-in-place.

Unacceptable concrete must be replaced at the Contractor’s expense. Custom concrete mixes outside of these tolerances can be approved by the Engineer on a case-by-case basis. The State reserves the right to reject concrete based on a visual inspection without waiting on testing results.

Test sampling and compressive strength testing of grout shall be in accordance with

ASTM C1019. Slump testing of grout shall be in accordance with ASTM C143.

Grout must have a compressive strength of at least 2,000psi within 28 days and a slump of 8-11 inches to be acceptable, unless otherwise specified in the Plans or these

Specifications. Unacceptable grout must be replaced at the Contractor’s expense.

Custom grout mixes outside of these tolerances can be approved by the Engineer on a case-by-case basis. The State reserves the right to reject grout based on a visual inspection without waiting on testing results.

At a minimum, the pipe / fill compaction tests will include moisture content and density tests of the soil in accordance with the provisions of ASTM D698 (Standard

Proctor) field density tests following compaction. A new Standard Proctor will be run when soil type changes occur on site and/or at the direction of the Engineer or State representative.

Soil tests shall determine the optimal additives required for areas of soil disturbance to be fully re-vegetated (or 3 tons per acre preferred minimum). Normally, this includes – at a minimum – soil pH test results as well as available nutrients within the soil, including, at a minimum: nitrogen (N), phosphorus (P), potassium (K), calcium

(Ca), magnesium (MG), and Sulfur (S). At a minimum, the soil testing report will recommend what soil amendments in which concentrations are ideal for regrowth. If problems with re-vegetation occur, additional, more specialized tests may be required to be performed at the Engineer’s discretion and the Contractor’s expense.

Limestone and Sandstone shall be subjected to a Sodium Sulfate test in accordance with AASHTO T104. All stone shall have a maximum weighted loss of twelve (12) percent when subjected to five (5) cycles of the Sodium Sulfate Soundness Test –

ASTM C88 (ASTM C88-05 Standard Test Method for Soundness of Aggregates by

Use of Sodium Sulfate or Magnesium Sulfate), as modified by the American

Association of State Highway and Transportation Officials (AASHTO) T-104. All

Stone shall be commercially supplied and shall be tested for calcium carbonate.

Limestone shall be tested for calcium carbonate equivalency which must be 70% or greater and be certified as such.

Sandstone shall be certified to be non-acid producing. Sandstone to be sound, non-acid producing, durable, non-calcareous sandstone from a State approved source.

https://transportation.wv.gov/highways/TechnicalSupport/specifications/Documents/2023_Standard_%2812-16-22%29.pdf https://transportation.wv.gov/highways/TechnicalSupport/specifications/Documents/2023_Standard_%2812-16-22%29.pdf

Shale is not acceptable. The State reserves the right to reject sandstone based on a visual inspection without waiting on testing results.

Note that the WVDOT Standard Specifications for Roads and Bridges, 2023 Edition specify quality control and testing procedures that ARE REQUIRED for any applicable asphalt replacement repaving, shoulder stone, guardrail replacement, etc.

The Contractor is to ensure these are implemented, that materials and installations permanently installed meet or exceed all required tests, and the Contractor shall provide the results to the State and the WVDOH for record.

3.3 Tests Required

Concrete Tests for Compressive

Strength, Slump Test, Air

Content, Temperature

Every 10 CY or at least once per day (whichever is greater)

Grout Tests for Compressive

Strength and Slump Test

Every 10 CY or at least once per day (whichever is greater)

Pipe Compaction Testing for Backfill Material

Density

Per Engineer; 1 Lot of 5 tests per day (min)

Fill Compaction Testing for Backfill Material

Density

1 Lot of 5 tests per day (min)

Soil Test Varies As Needed

Material Certification Manufacturer Certification for all purchased materials

On or Before Delivery

Limestone Sodium Sulfate test, calcium carbonate equivalent

On or Before Delivery

Sandstone Certification that rock is non-acid producing and sodium sulfate test

On or Before Delivery

3.4 Construction Methods

The Contractor shall select an independent testing laboratory for testing. The laboratory shall be under the direct supervision of a Registered Professional Engineer or PhD. The laboratory must be approved by the State, prior to testing.

The Contractor shall furnish a certified technician to perform the required testing at the project site. The certified technician shall submit a copy of their certification, and a copy of that certification shall be submitted to State at the Pre-Construction

Conference. The certified technician shall be responsible for chain of custody of any samples that leave the site.

Testing shall be performed as required by these Specifications and or as ordered by the Engineer or State 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.

The Contractor shall be responsible for performing laboratory tests of the coal, mine spoil, and any natural soil to identify the compaction requirements for their use as fill and cover material, respectively. In addition, field density tests shall be performed in accordance with these Specifications. All test results shall be submitted to the

Engineer for approval of compaction criteria prior to finalizing compacting the fill material and after fill material is placed to verify that the required compaction is obtained.

Only new and first-class materials, which conform to the requirements of these

Specifications, shall be used unless specified otherwise. When requested by the State, 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

Engineer before delivery is started. If, at any time, sources previously approved fail to produce materials acceptable to the State, the Contractor shall furnish materials from other approved sources.

3.5 Method of Measurement and Basis of Payment

There shall be no measurement of the “Quality Control” item as it is a lump sum. The 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 quality control bid amount. Neither deduction nor increase will 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.

3.6 Pay Item

Item 3.0, “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 Subgrade Preparation

This work shall include stripping and stockpiling topsoil (if encountered) from the construction area, subgrade preparation of areas to the lines and grades defined on the plans. This work will not include preparation associated with the Erosion and

Sediment Control or the Drainage Structures.

4.1.2 Clearing and Grubbing

Work performed under this section shall include the removal and disposal of all trees, stumps, shrubs, and any other vegetation along with wood, debris, or garbage of any nature. This includes those areas specified below, shown on the Plans, and any other areas as approved by the State via Change Order. This work shall also include the preservation from damage for all vegetation, utilities, or any other object not being specifically removed according to the Specifications and Plans.

4.1.3 Topsoil Removal

The existing site, being mostly refuse, will have minimal topsoil. This work shall include stripping and stockpiling topsoil from the construction area, keeping it free of refuse material, separate from stockpiled soil, and using the topsoil for soil cover and revegetation at the end of the construction.

4.1.4 Demolition of Structures

Work performed under this section shall consist of complete demolition and removal of such buildings, mining related structures, equipment and materials, existing ruins and foundation structures, as are specifically designated on the Plans for removal or encountered during construction, except as is otherwise specified.

Demolished concrete and cinder block structures and foundation ruins (if encountered) may be disposed of on-site, if approved.

All steel residue and wood (burned) must be removed from the site. All on-site garbage (as well as all other debris of any type and quantity), mining equipment, and metal structures encountered shall be removed from the site to an off-site disposal area in accordance with these Specifications to a Landfill approved by the

State to accept the applicable waste type. Certified disposal weight tickets shall be provided to the WVDEP. The Contractor is advised to perform a thorough site reconnaissance to quantify all garbage designated for removal prior to submitting a bid.

Asbestos Material Identification and Removal (if present) - This Work shall consist of a Contractor-provided Competent Person – as defined by Title 29, Subtitle B, Chapter XVII, Part 1926 of the CFR Code – performing a thorough search of all existing structures on the project to ensure that there are no asbestos materials present. If any areas are suspected of containing asbestos, then an inspection would need to occur – at the Contractor’s expense – by a company possessing a valid, current Asbestos Contractor License in the State of West

Virginia. Each on-site representative of the company performing the asbestos survey or mitigation would need to be a Licensed Asbestos Contractor in the State of West Virginia. If asbestos was found, an estimate for removal and proper disposal would need to be obtained by the Contractor and submitted for the

Engineer’s approval. At that point, the Contractor would be responsible to perform all notifications as required by all Federal and State law – particularly NESHAP as outlined in Title 40, Chapter I, Subchapter C, Part 61, Subpart M of the CFR Code.

No work would be allowed at the location of the asbestos until the removal process was completed. No asbestos mitigation or removal is anticipated for this Work

– if the Contractor determines asbestos is present and subsequently receives a positive test for asbestos, a Change Order would be negotiated with the State for the proper mitigation to occur through the Contractor. All mitigation by the

Contractor (or their Sub-Contractor) would need to be in accordance with all

Federal, State, and Local laws.

Materials and Equipment Storage - The Contractor shall obtain approval from the

Engineer for proposed materials and equipment storage areas prior to use.

Refueling or fuel storage should not occur within 100ft of a wetland, water body, stream, or ditch leading into the same – see additional requirements for fuel storage in the “Spill Containment Area” below. Areas utilized shall be restored to an “as good as” or “better” condition than existed prior to construction or shall otherwise be reclaimed as directed or approved by the Engineer.

4.1.5 Existing AMD Treatment System Removal

This work shall consist of complete dewatering, demolition, and removal of items associated with the existing treatment system as defined as an equalization pond, sap cell, sump and aerobic wetland as shown on the plans including but not limited to all stone, liners, piping, valves, cleanouts, baffles, weirs, entrance channels, exit channels, etc.

This item shall include the excavation and over excavation of material associated with the Limestone Disposal Area and the hauling of said material to the locations as shown on the plans requiring fill material.

4.1.6 Access Road Construction

Tempor…