ARFQ DEP1800000010 Vickers Branch (Richardson) Drainage TECHNICAL SPECS 5-8-17.pdf
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- Solicitation number
- ARFQ 0313 DEP1800000010 2
- Issued by
- Logan County, West Virginia
About this file
This document contains construction specifications for the Vickers Branch (Richardson) Drainage project issued by the State of West Virginia Department of Environmental Protection (WVDEP), Office of Abandoned Mine Lands and Reclamation, in Logan County. The project addresses drainage and acid mine drainage (AMD) artesianing issues near Chapmanville, West Virginia. The scope of work includes clearing and grubbing, construction of a stabilized construction entrance, sediment control installation, demolition of a garage and driveway, installation of drainage control structures (including a 36-inch pipe, drainage sump, and underdrain), fill and compaction of areas affected by removal operations, revegetation of disturbed areas, and final site cleanup. All contractors must provide surveying services, establish construction baselines, develop completed quantities, and procure all necessary materials. The contractor assumes responsibility as Co-Applicant #1 under the NPDES Construction Storm Water General Permit (WV0115924) and must complete the co-applicant signature page prior to the pre-construction conference and issuance of the Notice to Proceed.
Mobilization and demobilization costs cannot exceed 10 percent of the total bid amount, construction layout costs cannot exceed 5 percent, quality control costs cannot exceed 3 percent, and site preparation costs cannot exceed 10 percent of the total project bid. The contractor is responsible for obtaining all required permits, including Water Quality Certification from WVDEP, burning permits from WVDNR and WVDEP Office of Air Quality, and any necessary Stream Activity Permits. The contractor must identify and utilize approved borrow and disposal areas in compliance with NEPA requirements and must submit reclamation plans for WVDEP approval. The contractor bears full responsibility for NPDES permit compliance, including any violations or fines resulting from negligence or failure to install permanent controls, and must apply for a Notice of Termination upon project completion. All materials must meet applicable ASTM standards, and a certified testing laboratory under the supervision of a registered professional civil engineer must perform required compaction, soil nutrient, and concrete/grout strength testing.
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CONSTRUCTION SPECIFICATIONS
Vickers Branch (Richardson) Drainage
LOGAN COUNTY, WEST VIRGINIA
STATE OF WEST VIRGINIA
DEPARTMENT OF ENVIRONMENTAL PROTECTION
ABANDONED MINE LANDS AND RECLAMATION
May 2017
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. Blasting
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 Drainage Structures
8.0 Utilities
Vickers Branch (Richardson) Drainage
I. SPECIAL PROVISIONS
I. LOCATION / SITE DESCRIPTION
The Vickers Branch (Richardson) Drainage project is located near Chapmanville in Logan
County, West Virginia. This project includes drainage related problems related to AMD artesianing out of the ground.
Directions to site:
From Charleston, take 119S to Trace Fork (mp 39.5) and turn right onto Trace Fork. Drive
1.2 miles and turn left onto Vickers Branch, crossing a bridge. Drive 0.7 mile and turn right onto Acorn Road. Drive 0.1 mile and turn left onto Fox Den Road. The Richardson home is located at the end of Fox Den Road.
The GPS location is as follows: 37° 59’ 23.3” 82° 01’ 21”
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:
• Clearing and grubbing at the site(s), and removal or burning of debris, trash, tree roots, and associated materials.
• Construction and installation of stabilized construction entrance.
• Providing sediment control.
• Demolition of a garage and driveway.
• Construction and installation of drainage control structures including a 36” pipe, drainage sump and underdrain.
• Fill and compact area left open from pipe and driveway removal.
• Revegetation of disturbed areas.
• Final site cleanup.
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 WVDNR 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. The WVDEP will obtain the Permits (MM 109 Form) from
WVDOH and NPDES from WVDEP. Contractor shall be responsible for any Stream
Activity Permits necessary to complete the project work.
VI. NPDES STORMWATER REQUIREMENTS
The WVDEP-AML has obtained a Construction Storm Water General Permit for this project from 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 #1, with the WVDEP-AML being Co-Applicant #2. 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 #1 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 #1 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 Contractor 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
VII. CONSTRUCTION SIGN
1. Work Required.
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.
2. Materials.
(a) Sign face shall be 3/4" 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.
(b) Hardware:
(1) All hardware shall be manufactured from good, commercial-quality material and meet all applicable ASTM standards.
(2) Spikes and nails shall be common wire-type and shall meet AISI steel specifications 1010 or 1020.
(3) All hardware shall be hot-dip galvanized in accordance with
ASTM A-153.
3 Execution.
(a) Project Sign. The sign board shall be cut to the dimensions shown on the detail herein. The sign shall 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 required cross-bracing.
The posts and sign shall be erected and posts set in gravel base, as shown on the drawings. One (1) sign is required and is to be located at the discretion of the
Inspector.
(b) Payment. Payment for the work which shall include installation of the project sign shall be part of the lump-sum bid for "Mobilization".
VIII. BLASTING
No blasting will be allowed.
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. 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. 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 will be per each.
1.3 Basis of Payment
The bid for “Mobilization and Demobilization” shall be per each 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 per each 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 each 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. 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 prior to the
Final Inspection Meeting. 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 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 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.
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 Engineer. The Contractor shall furnish a copy of his/her 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 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 Licensed Land Surveyor registered in the State of West
Virginia. As the survey is completed, the Licensed Land 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 two discs each of the plans in PDF and
AutoCAD 2007-2014 format on CD-ROM or DVD 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. 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 Licensed Land Surveyor on the As-Builts must be certified by the Licensed Land 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 Measurement and Payment
Measurement and payment for 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 per each bid for “Construction Layout”. The per each 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 per each bid cannot be more than 5% of the
TOTAL AMOUNT BID for the project. Neither deduction nor increase will be made in the per each “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 2.0, “Construction Layout”, per each 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. When there is a discrepancy between the Plans and Specifications on this project the following hierarchy of documents shall apply:
1. Any and all addendums that were generated for the project either before or after construction began.
2. Plans shall be the document that shall be used in places where discrepancies occur between the Plans and 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. As a minimum, the compaction tests will include moisture content & 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 his representative.
2. Soil tests to determine the lime and nutrient requirements of the areas to be re-vegetated.
3. Compressive strength test for grout in accordance with ASTM C109, and for concrete in accordance with ASTM C31 & C39.
3.2.3 Tests Required
Grout Testing for compressive strength
Pipe Line Compaction Testing for backfill material density
Soil Test As needed to determine Nutrient tests NPK
Material Certification Manufacture certification on all materials on project
Sandstone Riprap
Stone
Sodium sulfate test
3.3 Construction Methods
3.3.1 The Contractor shall furnish the services of his own testing laboratory or select an independent testing laboratory, as long as the laboratory is under the direct supervision of a Registered Professional Civil Engineer. The laboratory must be approved by the Owner.
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 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 compaction, soil nutrient and lime requirements for soil, compressive strength tests for concrete and grout, shall be performed as required by these specifications andor 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 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 the Construction Specifications. All test results shall be submitted to the Engineer for approval of compaction criteria prior to compacting the fill material and after fill material is placed to verify that the required compaction is obtained.
3.3.4 Only new and first class materials, which conform to the requirements of these
Specifications, shall be used unless specified otherwise. When requested by the
Owner, 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 Owner, the Contractor shall furnish materials from other approved sources.
3.4 Method of Measurement
The method of measurement for quality control work done as described above will be on a per each basis.
3.5 Basis of Payment
The quantity of quality control work done will be paid at the contract per each price bid for this item. Said per each 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 per each
“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 each 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 Access Road Construction
Access roads constructed to gain access to, travel between or otherwise required for equipment/vehicular site access shall be kept to a minimum and only constructed where necessary upon approval from the WVDEP, where applicable. If the
Contractor constructs such travel routes, they shall be reclaimed and revegetated according to Section 6 upon completion of the construction activities, as deemed necessary by the WVDEP, with associated costs being incidental. Any additional access shall require the Contractor to obtain written permission from the respective land owner. The existing access roads shall be maintained during construction
(except when culvert, ditch and road construction are being performed), and shall be left in a condition equal to, or better than, the existing condition upon completion of construction.
Final grading, stabilization, and providing final drainage control for existing access roads shall be performed after reclamation operations for the project have been completed.
4.1.3 Structure Demolition
The driveway shall be saw cut to provide a four foot walk way to the exterior door from the garage. The existing garage structures, foundations, slabs and driveway sections shall be removed to at least one (1) foot below existing ground level and disposed of offsite.
4.1.4 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.
4.2 Materials
4.2.1 Any equipment and construction materials required for clearing, grubbing, grading and demolition.
4.3 Construction Methods
4.3.1 The specific areas to be cleared and grubbed are as shown on the Contract
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 burned completely to ash or otherwise removed from the site and disposed of in a manner approved by the WVDEP. Burning of the combustible material will not be permitted on or near refuse, mine portals or within close proximity to coal seams, residence, structures or utilities. The
Contractor shall obtain all permits and licenses required prior to burning the material. A plan showing the location of material to be burned and all fire control measures to be implemented, including copies of permits and licenses, shall be submitted to the WVDEP’s representative at the site for approval. If a permit cannot be obtained because of the conditions stated above 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, demolition debris, 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 IV 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.
4.3.9 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 insure 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.
4.3.10 Should offsite disposal or borrow be necessary, the Contractor shall observe the
NEPA Compliance Schedule as per Section III of the Special Provisions.
4.3.11 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.
4.4 Method Of Measurement
4.4.1 There shall be no measurement of the “Site Preparation” item as it is a per each.
4.5 Basis Of Payment
4.5.1 The “Site Preparation” item shall be paid at the per each price. The amount shall not exceed 10% of the TOTAL AMOUNT BID for each bid. Payment shall be full compensation for doing all the work herein prescribed in a workmanlike and acceptable manner; including the furnishing of all labor, materials, tools, equipment, supplies, and incidental necessary to complete the work. This includes all clearing, grubbing, saw cutting the driveway, demolition and disposal of garage structures, foundations, slabs and driveway sections as required on the project site.
No deduction will be made, nor will any increase be made, in the per each “Site
Preparation” amount regardless of decreases or increases in the final total contract amount or for any other cause.
4.6 Pay Items
Item 4.0, “Site Preparation”, per each. Cannot be more than 10% of the “Total Amount
Bid” for the project.
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 Sediment Control Barrier (e.g. silt fence) 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 be given a NPDES Permit with an approved erosion and sediment control plan at the pre-construction meeting. 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 NPDES approved 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: Sediment Control Measures shall be required on the perimeter of the project site for sediment control in accordance with the NPDES requirements. The silt fence for sediment control shall be in place before any construction work begins. This fence shall remain and be maintained during the entire construction process.
The following are the minimum requirements of the NPDES Permit 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.
• 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 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 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 seven calendar days and within 24 hours after any storm event of greater than 0.5 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 Fence: Fence posts shall be a minimum of 48" long driven 16" minimum into the ground. Where ends of geotextile fabric come together, they shall be overlapped, folded and stapled to prevent sediment bypass. Silt Fence shall be inspected after each rainfall event and maintained when bulges occur or when sediment accumulation reached 50% of the fabric height.
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 seventy (70) foot long and twelve
(12) foot in width. This stone construction access must conform to the detail drawings shown in the plans.
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, construction entrance and silt fencing. The site shall 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
5.6.1 The method of measurement for “Silt Fence” installation and maintenance in conformance with the specifications and accepted by the WVDEP shall be on a per linear foot basis to include stakes, all necessary materials, supplies, labor and equipment for installation and maintenance including sediment removal and disposal.
5.6.2 The method of measurement for “Stabilized Construction Entrance” installation and maintenance in conformance with the specifications and accepted by the WVDEP shall be on per ton and shall be based upon weigh tickets from the commercial supplier of the stone that is delivered and placed at the locations identified on the plan drawings. This item shall include all necessary materials, stabilized fabric, supplies, labor and equipment for installation and maintenance including periodic top dressing with additional stone and removal at completion of the project work.
5.6.3 Any additional sediment control, i.e. sumps etc., installed by the contractor to meet any applicable State or Federal Law or Regulation shall be the Contractor's sole responsibility and all costs pursuant thereto shall be born fully by the Contractor.
This also includes the removal and disposal of sediment from the existing Sediment
Basins. However, any additional sediment control approved by the WVDEP prior to placement shall be included for measurement.
5.7 Basis Of Payment
5.7.1 Silt Fence payment shall be based on the contract unit price bid for the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform the work. Additionally, payments shall constitute full compensation for any required maintenance, sediment removal and disposal.
5.7.2 Stabilized Construction Entrances payment shall be based on the contract unit price bid for the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform 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.
5.8 Pay Items
Item 5.0, “Silt Fence Sediment Control”, per linear foot.
Item 5.1, “Stabilized Construction Entrance 12’ X 70’”, 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 and legume seed furnished for the project shall bear a tag, in accordance with applicable state and federal laws, with the following information listed:
1. Lot Number
2. Seed Producers Name
3. Percent Purity
4. Percent Germination
5. Date of Germination Testing
6. 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 40
(Lolium multiflorum)
German Millet * 40
(Setaria italica)
Cereal Rye
(Secale cereale) 170
*Do not use Japanese Millet
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:
Rate Seed Minimum Specifications lb/1000 sq. ft. Variety 0% Purity %Total Germination
0.45 Red Fescue 98 85
(Pennlawn)
0.90 Kentucky Bluegrass 85 75
0.70 Merion Bluegrass 90 75
0.20 Annual Ryegrass* 95 85
*Use Annual Ryegrass only in mixtures seeded after August 1 and prior to
May 15.
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 destroyed 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 of 3/15 - 5/15 8/15 - 10/15
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. On areas which are steeply sloping (steeper than 1.7:1) or slide prone, substitute Crown vetch (Coronilla varia) at 20 lbs./acre for
Birdsfoot Trefoil.
(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:
Lawn Seed Mixture Add 4 lbs/1000ft2 of Red Fescue.
Permanent Seed Mixture 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.
6.2.4.2 Wood Cellulose Fiber
Wood cellulose fiber may be used only on slopes steeper than 2H:1V at a rate of 1,500 lbs./acre. 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 with 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 various 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…
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