25112_Specifications_Revision_0.0 - Rev. 6.8.26.pdf

CONSTRUCTION SPECIFICATIONS

REED’S CREEK HATCHERY POND MODIFICATIONS

FRANKLIN, PENDLETON COUNTY, WEST VIRGINIA

Civil Tech Project No. 25112

SUBMITTED TO:

WVDNR

CHARLESTON, WEST VIRGINIA

SUBMITTED BY:

CIVIL TECH ENGINEERING, INC.

HURRICANE, WEST VIRGINIA

REVISION 0.0 -- ISSUED FEBRUARY 26, 2026 – REV 6.8.26

TABLE OF CONTENTS

Page No.

1.0 GENERAL CONDITIONS 1

1.01 GENERAL DESCRIPTION OF WORK 1

1.02 DEFINITIONS 1

1.03 ACCESS TO SITE 2

1.04 CONTRACT DRAWINGS AND SPECIFICATIONS 3

1.05 GRADES, POSITION AND ALIGNMENT 3

1.06 SLIDES 4

1.07 CONTROL AND REVIEW OF WORK BY THE DESIGN ENGINEER 4

1.08 SANITARY FACILITIES 5

1.09 TEMPORARY UTILITIES 5

1.10 BORROW AREA 5

1.11 TEMPORARY HAUL ROADS 5

1.12 WASTE AREA 5

1.13 FIELD OFFICE 5

1.14 SUBCONTRACTORS 5

1.15 CONSTRUCTION SCHEDULE 6

1.16 SUBSURFACE INVESTIGATION 6

1.17 QUALITY ASSURANCE AND CONTROL 6

1.18 SUBMITTALS 7

1.19 ACCEPTANCE 7

1.20 SAFETY 7

1.21 ENVIRONMENTAL PROTECTION 8

1.22 MEASUREMENT AND PAYMENT 8

2.0 TECHNICAL SPECIFICATIONS 12

2.01 MOBILIZATION AND DEMOBILIZATION 12

2.02 CLEARING AND GRUBBING 12

2.03 SITE WORK 12

2.04 CRUSHED STONE BASE AND RIPRAP 16

2.05 EROSION AND SEDIMENT CONTROL 17

2.06 SEEDING, FERTILIZING, AND MULCHING 18

2.07 DEWATERING AND WATER CONTROL 19

2.08 CONTACT BOX MODIFICATIONS 20

2.09 AUTOMATIC SAMPLER & ELECTRIC POWER 21

2.10 SLUDGE REMOVAL AND DISPOSAL 23

2.11 CONCRETE 24

2.12 REINFORCING STEEL 35

Rev. 0.0 – Issued February 26, 2026 – Rev. 6.8.26

1.0 GENERAL CONDITIONS

1.01 GENERAL DESCRIPTION OF WORK

The work to be performed as required by these Contract Documents consists of pond contact box (discharge structure) modifications, installation of an automatic water sampler with electric power, wet well for measuring lake level, and removal/disposal of sludge from the waste treatment pond at the Reed’s Creek Hatchery located near Franklin, West

Virginia. Sludge handling and disposal will be performed in accordance with these

Specifications and the Nutrient Management Plan developed by the West Virginia

Department of Agriculture dated September 26, 2024. A copy of this plan is Appended to these Specifications. Major work items include but are not limited to:

1. Mobilization/demobilization of personnel, equipment, and materials.

2. Installation of temporary erosion and sediment control.

3. Dewatering and water control.

4. Site Work:

• clearing and grubbing,

• stripping the work area,

• placement of geotextile and crushed stone for temporary access and staging at the pond and removal of the same at completion,

• Excavation and cohesive fill/backfill,

• Demolition (saw cutting the contact box and pipe removal),

• Trenching for installation of underground electric power supply for the automatic sampler and flow measurement,

• Mechanical agitation of the dewatered sludge to facilitate removal by pumping by vacuum truck,

• Fence removal and replacement to allow installation of the new discharge channel, headwall, and riprap outlet.

• Removal and backfill of the existing 15-inch CMP with cohesive fill.

5. Contact box modifications, including inlet weir, discharge channel, headwall, and riprap inlet protection and discharge outlet to Reed’s Creek.

6. Installation of the automatic sampler with 115V power supply and concrete support pad for the automatic sampler,

7. Sludge removal by pumping and land application disposal,

8. Regrading and revegetation of disturbed areas.

9. Removal of erosion and sediment control measures.

1.02 DEFINITIONS

Wherever the words defined in this section or pronouns used in their stead occur in these

Specifications, they shall have the meanings here given.

A. The word "Owner" refers to the designated representative (s) of the WVDNR.

B. The word "Engineer" refers to the Owner's Representative(s) which includes the

Design Engineer or other as designated by the Owner.

C. The word "Directed" shall mean in accordance with written instructions or directions given by the Engineer.

D. The words "Equivalent", "Equal", "Necessary", "Required", "Satisfactory", or

"Proper" shall mean equal, necessary, required, satisfactory, or proper in the opinion of the Owner or Owner’s Representative when applicable to work called for or indicated on the Contract Drawings or Specifications.

E. The words "Site", "Construction Area", and "Limits of Construction" shall mean that area upon, or in which, the operations are performed, together with such areas adjacent thereto, as may be designated for the Contractor's use by the Owner or Owner’s

Representative.

F. The words "Complete", "Completed", or "Completion" shall mean full and exact compliance and conformance with the provisions and requirements expressed or implied in these Specifications and the Drawings accompanying and forming a part of the same.

G. The words "Design Drawings" shall mean the applicable plans, sections, detail(s), and the written notes and requirements thereof.

1.03 ACCESS TO SITE

Access to the site from, or across, existing roads shall be provided by the Contractor. At the time of the pre-bid meeting, the Contractor shall obtain information concerning restrictions on the use of existing roads and/or other facilities and utilities and shall plan his operations accordingly. The Contractor shall stake and become familiar with the

Construction Limits as shown on the Drawings and shall stay within those limits at all times. Location of access roads shall be coordinated with the Owner, Landowner, or

Owner’s Representative and approval must be obtained prior to construction. Use of roads under Construction for access to the site shall be at the approval of the Owner and Engineer only. Any existing roadways that are damaged by the Contractor shall be returned to their original condition as approved by the West Virginia Department of Transportation Division of Highways (DOH) or the Engineer at no cost to the Owner.

1.04 CONTRACT DRAWINGS AND SPECIFICATIONS

The following documents and drawings are hereby made a part of this Contract:

Description Drawing No.

Cover Sheet 00

Existing Site Conditions &Other 01

Sludge Disposal Area 02

Proposed Site Plan 03

Profile and Channel Sections 04

Channel Sections 05

1.04.1 Scope of Drawings: The Drawings and the Specifications shall be considered as fixing the extent of the Work.

1.04.2 Dimensions: Where dimensions or other information are lacking on the Drawings, or conflicts occur, the Contractor shall not scale the Drawings or proceed with the work affected, but shall appeal to the Engineer, who will furnish the necessary information.

1.04.3 Copies of Drawings Furnished: The Owner will furnish all Drawings showing the general and various parts of the Work. Drawings will be furnished in pdf and CAD format.

Specifications will be furnished in pdf format. Paper copies of the design drawings and specifications will not be provided.

1.04.4 Changes to Drawings: The Owner reserves the right to make minor changes or modifications to the Drawings prior to or during construction of the Work shown thereon.

The Work shall conform to these and to such other drawings relative thereto as may be furnished by the Owner prior to the signing of the Contract and to such drawings in explanation of details or minor modifications as may be furnished from time to time during construction, including such minor modifications as the Owner may consider necessary due to conditions found during the execution of the Work.

1.04.5 Voided Drawings: The Contractor shall be required to furnish receipts for copies of revised Drawings and shall thereafter be responsible for errors made in using superseded

Drawings.

1.05 GRADES, POSITION, AND ALIGNMENT

The WVDNR will furnish monuments and benchmarks as shown on the Design Drawings for construction control. The existing contact box will be used as a vertical benchmark for modification of that structure and installation of new inlet weir and discharge channel as shown on the Plans. The sludge disposal areas shall be staked as shown on the Plans using

GPS survey techniques and WV State Plane Grid South (NAD83, NAVD88) as horizontal and vertical control. The sludge disposal areas shall be laid out to correspond with existing fencing and cleared farm fields where present. Sludge disposal areas must be approved by the Engineer, Landowner, and WVDNR. The surveyor or professional engineer responsible for survey layout and contact box modifications shall be licensed in the State of West Virginia and shall be approved by the Engineer. All stakes or monuments destroyed by the Contractor shall be replaced by him at no expense to the WVDNR.

The Engineer may check the measurements and alignments made by the Contractor. If errors are discovered in the Contractors measurements and/or alignments, the Contractor shall pay all costs in making the check survey and correcting misalignment. Other than the monuments provided by the WVDNR as described above, the Contractor shall furnish all survey stakes, batter boards, templates, straightedges, and other devices necessary for laying out all parts of the Work. Elevation and horizontal tolerances for construction shall be as follows:

Elevation Horizontal

Sludge Disposal Areas 1 ft. 1 ft.

Concrete Structures 0.01 ft. 0.01 ft.

Monuments 0.01 ft. 0.01 ft.

The Contractor shall furnish as-built measurements plotted over the Design Plans in

AutoCad format illustrating the as-constructed dimensions, alignments, weir, and channel elevations, underground electric, and sludge disposal areas. Failure to provide as-built plans will result in non-payment of retainage held.

Payment for surveying layout, as-built measurements, and calculation of pay quantities

(if required by these specifications) will be made on a lump sum basis under Pay Item

1.0. Surveying and layout shall be limited to 5% of the contract value.

1.06 SLIDES

In the event of slides due to negligence by the Contractor, prior to final acceptance of the

Work, the Contractor shall remove the material from the slide area and shall rebuild any such portion of the slope under the direction of the Engineer. The removal and disposal of material and the rebuilding of the affected slope shall be performed by the Contractor without cost to the Owner.

1.07 CONTROL AND REVIEW OF WORK BY THE DESIGN ENGINEER

The presence of the Engineer or his representative at the site is to provide the Owner a source of professional advice, opinions, and recommendations based upon the field representative observations of the Contractors work and does not include any superintending, supervision, direction or approval of the actual work of the Contractor or the Contractors workers. The Engineer or his representative will inspect the construction work as required by the Owner. The Engineer or his representative will have the authority to halt construction when, in his opinion, the Contractors work is not in conformance with these Specifications or the Design Drawings. Approval of any item of work by the

Engineer or his representative shall not relieve the Contractor of his obligation to construct the work in accordance with the approved plans and specifications, or to provide a finished product which is functional and complies with the intent of the Drawings and

Specifications.

1.08 SANITARY FACILITIES

The Contractor shall observe all rules and regulations of the West Virginia Department of

Health and shall take precautions to avoid creating unsanitary conditions. Necessary sanitary conveniences for the use of employees shall be provided and maintained by the

Contractor at such points and in such a manner as shall be approved by the Owner.

1.09 TEMPORARY UTILITIES – Not Used.

1.10 BORROW AREA – Not Used

1.11 TEMPORARY HAUL ROADS

Temporary haul roads shall be constructed and maintained so that erosion and siltation at the site are minimized and dust is controlled in such a manner as approved by the Engineer.

A water truck should be available onsite for dust suppression. No oil or waste oil is allowed for use in dust abatement procedures. Water removed by dewatering activity or used to cure the concrete (if any) shall be collected and pumped to a suitable location to prevent contamination of the adjacent river. Curing water will not be suitable for use as dust suppression.

1.12 WASTE AREA

Excess and unsuitable soils will be thinly spread in the waste area shown on the Plans as approved by the Engineer and WVDNR. Vegetation and topsoil will be stripped prior to placement of waste and used to revegetate the surface of the area at completion.

1.13 FIELD OFFICE – Not Used

1.14 SUBCONTRACTORS

A list of subcontractors which the Contractor proposes to use in execution of the work will be submitted to the Engineer prior to beginning work. Subcontractors must be approved by the Engineer. The Owner reserves the right to reject any, and all subcontractors. If rejected, the Contractor will suggest alternate subcontractors which are acceptable to the

Owner. Subcontractors shall perform their work in accordance with these Specifications and the Design Drawings. The Contractor shall hold the Owner and Engineer harmless for damage(s) caused by the subcontractor(s) in execution of the work. Subcontractors shall furnish to the Engineer and maintain insurance coverage which is the same as that required by the Contractor by the State of West Virginia and in accordance with the contract.

1.15 CONSTRUCTION SCHEDULE

The Contractor shall submit a schedule of work activities encompassing the project from beginning to end prior to commencing construction. The schedule shall include a detailed list of equipment and personnel which will be utilized on the project. The schedule should reflect any special procedures which are required to construct the Work specified herein or shown on the Design Drawings. The schedule shall be submitted to and subject to approval by the Engineer and Owner. The Contractor shall furnish written daily and weekly summary progress reports to the Engineer, including items such as work performed and completed, equipment used, labor used, down time on equipment, weather and weather delay, planned work activities for the following week, and other items which are pertinent to the successful and timely completion of the project.

1.16 SUBSURFACE INVESTIGATION

A subsurface investigation has not been performed for this project. Therefore, the Owner will not be responsible for the Contractors interpretation of site conditions controlling the work. The Contractor is responsible for reviewing the construction documents, visiting and examining the site, determining the conditions under which the work is to be performed, and conducting such investigations as he deems necessary for bidding, planning, and execution of his work. The Engineer and Owner will not be responsible for subsurface conditions, and no construction claims will be considered due to subsurface conditions.

1.17 QUALITY ASSURANCE AND CONTROL

The Contractor will provide and pay for quality control testing services during construction of the project. Testing shall be performed by an independent laboratory approved by the

Engineer. Quality assurance services will be provided by the Engineer as discussed herein.

The Contractor shall prepare a Quality Control plan for review and approval by the

Engineer. This plan will include all testing and will also include a submittal register and a spreadsheet showing the materials to be tested, the type and frequency of the required testing and have column(s) for the results of the tests. Quality Control Testing will be performed in accordance with the QA/QC plan and as approved by the Engineer. Test results will be furnished to the Engineer as soon as they become available. Testing will include all testing required by these Specifications and as a minimum but not limited to, soil, rock, rip rap, aggregate, and concrete. Where allowed by the Specifications, the

Engineer may accept supplier certification of compliance in lieu of specified testing when the supplier is qualified by the WVDOH.

The Engineer and DNR will provide quality assurance inspection services. Critical construction activities shall be monitored by a qualified representative of the Owners'

Engineer during construction. Non-critical construction activities shall be monitored at least once per day during construction activities by WVDNR personnel. Additional site inspections shall be made by the Engineer at intervals based on construction progress.

These inspections shall be made to further assess the Contractor's conformance with the approved Design Drawings and Specifications, examine construction progress, and verify adequate quality control procedures are being followed. The Engineer reserves the right to perform his own quality control testing to verify the Contractor’s test results and conformance with the approved plans and specifications.

1.18 SUBMITTALS

All information required in these Specifications shall be submitted to the Engineer. A schedule will be established at the pre-construction meeting for submitting required information. However, in general, materials specification sheets, shop drawings, etc.

should be submitted to the Engineer for review at least 15 days prior to construction unless otherwise specified herein. Materials and/or shop fabricated items which are delivered to the site or are incorporated in the final work and do not meet the intent of the design and/or the Engineers approval, regardless of submittal approval, will be modified or replaced with acceptable items as approved by the Engineer at no cost to the Owner.

1.19 ACCEPTANCE

Acceptance of any item constructed or manufactured under this contract by the Owner, Engineer, or any quality assurance inspector shall not relieve the Contractor of his responsibility of constructing the facility complete and functional as specified herein and shown on the Design Drawings.

1.20 SAFETY

The Contractor shall comply with all applicable state, local, and federal safety requirements during execution of the project. As a minimum, safety meetings and records thereof shall be conducted with the construction crew on a weekly basis. A report shall be filed with the Owner & Engineer describing any accidents or injuries immediately following the occurrence. The Contractor shall also report all injuries or accidents to the required state and federal government agencies within the required time. The Contractor shall be responsible for safety throughout all phases of construction. The presence of the Owner or

Owner's representative including the Engineer shall not relieve the Contractor of his responsibility for safety. The Contractor shall indemnify and hold the Owner, Engineer, and any other Owners representative harmless from any and all liability associated with injuries and/or safety violations onsite due to the negligence of the Contractor, Subcontractor, material suppliers, or others working on the project.

1.21 ENVIRONMENTAL PROTECTION

A construction stormwater permit has not been obtained for this project. However, the contractor will implement temporary erosion and sediment control measures as shown on the Plans and all temporary measures will comply with the WVDEP Best Management

Practices Manual. The Contractor will be fully responsible for violations and citations issued by the regulatory agencies.

1.22 MEASUREMENT AND PAYMENT

A. Lump Sum Pay Items: Lump Sum Pay Items include but are not limited to;

1. Surveying (LS)

2. Quality Control Testing (LS)

3. Mobilization/Demobilization (LS)

4. Site Work (LS)

5. Contact Box Modification (LS),

6. Automatic Sampler and Electric Power (LS)

7. Erosion and Sediment Control (LS)

8. Seeding, Fertilizing, and Mulching (LS)

9. Sludge Removal (LS)

Lump sum pay items will be measured based on the constructed unit installed complete and functional as required by these Specifications, shown on the Design Drawings, and approved by the Engineer.

Payment for these items will include all labor, material, equipment, taxes, permits, overhead, profit, and license to provide, construct, or install the item complete as required by these Specifications, shown on the Design Drawings, and as approved by the Engineer, agency/entity having jurisdiction, and the Owner.

B. Unit Price Items: Unit Price Pay Items include:

1. Sludge Removal and Disposal - Sludge removal pricing for bid purposes will be based on estimated sludge volume as shown on schedule of values presented herein.

Actual costs will be based on final quantity removed in the field measured in gallons as metered on suction truck not to exceed the bid amount unless approved by owner.

Measurement of unit price items for payment is defined herein. Payment for these items will include all labor, material, equipment, taxes, permits, overhead, profit, and license to provide, construct, or install the unit of work complete as required by these Specifications, shown on the Design Drawings, and as approved by the Engineer, agency/entity having jurisdiction, and the Owner.

C. Controlling Specification Sections: The Specification Section listed in Section “F. Pay

Items” is the primary specification controlling the pay item listed. However, the listing of this section of the specification does not limit the application of other specifications which have control on the work being performed as directed by the Engineer. The work must be performed in complete accordance with all applicable sections of the specifications as required to fully comply with the Contract Documents and as approved by the Engineer.

D. Incidental Work: All work required by these Specifications, as shown on the Design

Drawings, and required by the Engineer or entity/agency having jurisdiction, which is required to construct the project complete, and for which no pay item has been provided on the Contractor’s Bid, will be considered as incidental to the pay items and no separate payment will be made. This work will include but not be limited to; temporary facilities and controls, administration, supervision, submittals, coordination, meetings, repair of existing roadways, sampling, testing, and furnishing borrow, sub-grade preparation including grading for base stone aggregate, etc. if required on the plans and approved by the Engineer.

E. Alternate Methods: Where alternate methods of construction or installation are allowed by the Engineer, in these Specifications, or on the Design Drawings for an item of work, payment will be made based on the item as bid.

F. Pay Items:

1.0 SURVEYING

1. Specification: SECTION 1.05 – Item cannot exceed 5% of the contract value.

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 50% of bid price with the 1st application for payment and 50% with the final application for payment.

2.0 QUALITY CONTROL TESTING

1. Specification: SECTION 1.17 – Item cannot exceed 5% of contract value.

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 10% per application with remainder after completion of all required documentation and as-built drawings

3.0 MOBILIZATION/DEMOBILIZATION

1. Specification: SECTION 2.01 – Item not to exceed 10% of the contract value

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 50% of the bid price with the 1st application for payment and 50% with the final application for payment.

4.0 SITE WORK

1. Specification: SECTIONS 2.03.

3. Payment: Payment will be made at the contract lump sum bid price for site preparation work necessary to construct the project complete, including but not limited to;

• clearing and grubbing,

• stripping the work area,

• dewatering to lower the pond level to the top of the existing sludge,

• excavation, fill, and backfill for contact box modifications, riprap discharge channel, new inlet weir and discharge channel, headwall, riprap outlet, and the concrete support pad for the sampler.

• demolition to remove existing piping and sawcut to create openings in the existing reinforced concrete contact box,

• removal and backfill of the existing 15-inch CMP overflow pipe with cohesive fill,

• trenching for installation of underground electric power supply for the automatic sampler,

• mechanical agitation of the dewatered sludge to facilitate removal by pumping.

• crushed base stone and geotextile for temporary construction access and staging area.

• fence removal and new fence to allow installation of the new discharge channel, headwall, and riprap discharge outlet to the stream.

5.0 CONTACT BOX MODIFICATIONS

1. Specification: SECTION 2.08.

3. Payment: Payment for the Contact Box Modifications include reinforced concrete with dowels, water-stop, inlet weir, discharge channel, fittings, floor grating, headwall, and riprap inlet and discharge channel. Excavation, bedding, subgrade preparation, and cohesive fill/backfill is subsidiary to the Site Work Pay

Item and no separate payment will be made.

6.0 AUTOMATIC SAMPLER AND ELECTRIC POWER

1. Specification: SECTION 2.09.

3. Payment: Payment for the automatic sampler and flow measurement sensor with module including installation and setup, 115 volt underground electric power with disconnect, and the concrete support pad with crushed stone base aggregate shall be made based on the lump sum unit price as bid for installation of this feature complete as shown on the Plans and approved by the Engineer. The unit price includes crushed stone bedding, formwork, reinforced concrete, underground electric wire and conduit, disconnect and support post, backfill, and all miscellaneous items whether shown on the plans or not to provide a sampler which is fully functional and installed in accordance with the manufacturer’s recommendations Stripping, trenching, and subgrade preparation will be paid under Pay Item 4.0 Site Work.

7.0 EROSION AND SEDIMENT CONTROL

1. Specification: SECTION 2.05.

2. Unit of Measurement: LUMP SUM (LS)

3. Payment: 50% of the bid price with the 1st application for payment and 50% with the last application for payment.

8.0 SEEDING, FERTILIZING, AND MULCHING

1. Specification: SECTION 2.06.

3. Payment: Payment will be made at the contract lump sum price as bid for the disturbed area within the construction limits as shown on the Plans and as approved by the Engineer. This item will include spreading topsoil, seeding, fertilizing, and mulching all areas disturbed by construction and within the construction limits as shown on the Design Drawings as approved by the Engineer.

9.0 SLUDGE REMOVAL AND DISPOSAL

4. Specification: SECTION 2.10.

5. Unit of Measurement: GALLON (GAL)

6. Payment: Sludge removal and land application disposal as shown on the Plans will be measured per gallon based on an inline flow meter mounted on the vacuum pump truck. This item includes record keeping and reporting as specified herein. The cost will not exceed the budgeted amount without prior authorization of the Owner and

Engineer.

2.0 TECHNICAL SPECIFICATIONS

2.01 MOBILIZATION AND DEMOBILIZATION

2.01.1 Scope: The Contractor shall mobilize to the site and begin construction within 10 days after notice to proceed. This item shall include furnishing all labor, material, and equipment necessary to deliver and assemble at the site all equipment, tools, machinery, and supplies comprising the construction facilities. All equipment, tools, machinery, and supplies shall be removed from the site within 15 days after completion of the work. This item also includes the repair and maintenance of site access roads, existing utilities, and other site maintenance necessary for performance of the work.

2.01.2 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 3.0 Mobilization/Demobilization (LS)

2.02 CLEARING & GRUBBING

2.02.1 Scope: The Contractor shall furnish all labor, materials, and equipment necessary to clear, grub, and dispose of all trees, snags, logs, brush, stumps, shrubs, limbs, rubbish, and all roots from the construction area as shown on the Design Drawings or as required by the

2.02.2 Method: Clearing shall be performed prior to stripping to avoid contamination of the topsoil with woody debris and vegetation which is not suitable for seed bed preparation.

Stump removal shall include the removal of all lateral and tap roots measuring 1 inch in diameter, or larger as approved by the Engineer. Smaller roots remaining which become mixed with the fill materials shall be removed from the fill area using a root rake and hand labor when the material is spread and prior to compaction.

Clearing and grubbing debris shall be chipped and disposed of onsite as directed by the

Engineer. Clearing debris which cannot be chipped shall be disposed of offsite at an approved landfill. Burning is not allowed.

2.02.3 Measurement and Payment: No pay item. Clearing and Grubbing is subsidiary to the

Site Work Pay Item and no separate payment will be made.

2.03 SITE WORK

2.03.1 Scope: The Contractor shall furnish all labor, equipment, and materials to perform the required excavation and fill/backfill at the site necessary to construct the project complete as shown on the Plans and as approved by the Engineer. Site work will as a minimum include:

• Minor clearing and grubbing in the riprap discharge channel area.

• Stripping the work area/waste site, and stockpiling topsoil for later revegetation,

• Construct a temporary access road with crushed stone base and geotextile to access the dewatering and sludge removal locations.

• Dewatering the existing pond to the top of the sludge using the existing pond drain valve and/or by pumping and discharge through a silt bag before release to the stream.

• Mechanical agitation of the dewatered sludge to facilitate removal by pumping.

• Excavation, fill, and backfill necessary to remove existing piping, modify the contact box, install riprap, install the new drainpipe and wingwall at the discharge location on the creek bank, and trenching for underground electric. Material excavated which is not required for backfill will be thinly spread onsite and revegetated as approved by the Engineer.

• Demolition (sawcut) to remove existing piping and create openings in the existing reinforced concrete contact box,

• Remove existing pipe including the two inlet/outlet pipes in the existing contact box and the CMP overflow pipe and dispose offsite at an approved landfill.

• Fence removal and replacement to allow installation of new discharge piping, wingwall, and riprap channel.

Excavations shall be made to the lines and grades as shown on the Design Drawings or as specified by the Engineer and shall be maintained free-draining at all times. Material excavated may be used as fill provided it meets, or can be conditioned to meet, the

Specifications presented herein for fill. Materials which cannot be placed at once in permanent position may be temporarily stockpiled for later incorporation into the Work.

Material stockpiles should be located as approved by the Engineer and will be constructed at stable slopes. Erosion control measures should be implemented to prevent soil loss from the stockpiles to the stream or nearby drainage features. All work shall be performed with reasonable neatness, and excavated materials shall not be carelessly strewn over the premises. The Engineer may adjust the depths and limits of stripping to ensure the removal of all organic material. The stripped material shall be stockpiled and used for re-vegetation of the construction area as directed by the Engineer.

2.03.2 Demolition: The existing contact box will be partially demolished (modified by sawcut) to remove existing piping as shown on the Plans and approved by the Engineer to create a weir opening in the inlet side of the box and a new discharge channel with headwall in the outlet side. Piping components and debris from demolition shall be removed and disposed offsite at an approved landfill. Demolition can only be performed after the pond is dewatered in accordance with these Specifications and as approved by the Engineer.

2.03.3 Excavation: All excavation is considered unclassified. Unclassified excavation shall consist of the satisfactory removal (including loading and hauling) of all topsoil, soil, crushed stone, structures, debris, soft rock, and hard rock. Blasting will not be allowed.

Excavation shall be performed in conformance with minimum OSHA requirements for safety.

Soils expected to be encountered in the excavations should be cohesive in nature and will pump (become unstable) if subjected to equipment traffic. Therefore, rubber-tired equipment will not be allowed to operate within excavations. Also, construction traffic on the planned subgrade must be minimized and only low ground pressure tracked equipment will be used to perform the excavation. The Contractor will be fully responsible for preparation of and protection of the subgrade in a condition suitable for support of the proposed work and as approved by the Engineer. Should the subgrade become unstable, remedial measures may include removal of unsuitable material and replacement with compacted fill as approved by the Engineer. Should the subgrade become unstable due to the Contractor’s negligence, the remedial measures will be implemented at no additional cost to the Owner.

Excavations shall be performed to minimize the risk of sliding in adjacent slopes. Should a landslide develop during excavation due to the negligence of the Contractor, the

Contractor will be responsible for repairing the slope to a stable condition as approved by the Engineer at no cost to the Owner.

2.03.4 Excess and Unsuitable Materials: Excess or unsuitable materials will be thinly spread onsite as shown on the Plans or as directed by the Engineer. Materials encountered in the excavations which do not comply with these specifications but that are otherwise suitable for use will be modified, conditioned, or sized to meet these Specifications as approved by the Engineer.

2.03.5 Dewatering and Mechanical Agitation of Sludge: Dewatering and the control of water shall be performed in accordance with Section 2.07 of these Specifications. A dewatering and water control plan will be submitted prior to beginning pond work. The work shall be performed in accordance with the approved dewatering and water control plan, unless otherwise approved by the Engineer. Proper and satisfactory means and devices for the exclusion and removal of all water entering excavated or low-lying areas, whether the water be surface runoff or groundwater, shall be provided at all times during construction.

Water shall be removed as fast as it may collect in a manner that will not interfere with the execution of the work nor cause damage to property or the work in progress. Prior to excavation and fill placement, the groundwater table shall be lowered a minimum of 1 foot below the excavation bottom or as required to maintain stable conditions while this work is performed. The effectiveness of the water removal shall be satisfactory to the Engineer.

The Contractor shall be fully responsible for protection of work in progress due to damage caused by stream flow, flood flow, natural groundwater, seepage, surface runoff, or any combination of the same. Should damage occur, it will be repaired to the satisfaction of the Engineer at no additional cost to the Owner.

Sludge Agitation and Mixing for Pumping: During sludge removal by vacuum truck, the

Contractor shall agitate and mix the sludge with water remaining in the pond to allow pumping by vacuum truck. Agitation shall be performed using a long reach excavator capable of reaching sludge from the sides of the pond, or small dozer in the pond as needed to allow complete removal of the sludge by vacuum truck.

2.03.6 Fill: The Contact Box and Discharge Pipe shall be bedded and backfilled with compacted cohesive fill (ML-CL Unified Classification). The cohesive fill shall contain a maximum particle size of 2 inches and rock clusters will not be allowed. Fill shall be placed in maximum 4-inch loose lifts and compacted with hand operated equipment.

Compaction equipment shall be approved by the Engineer. Fill material shall be compacted to 95% of the maximum dry density within a moisture range of minus 2% of and plus 4% of the optimum moisture content. Prior to constructing the discharge channel, the subgrade will be compacted to 95% of the maximum dry density as determined by the standard Proctor laboratory test (ASTMD698). The subgrade shall be approved by the Engineer. Fill material shall be obtained from the site excavations and shall be approved by the Engineer.

Soils obtained on site may need to be modified to meet gradation and moisture requirements as directed by the Engineer. The Contractor shall sample and perform classification and laboratory compaction testing on representative samples of all fill materials obtained from the excavations. The sampling shall be performed under the direction of the Engineer. The testing lab shall also be approved by the Engineer and test results must be submitted to the Engineer for approval a minimum of 15 days before the material is hauled to the site or placed as fill. The fill must comply with these

Specifications. Minimum testing shall include one (1) each of the following tests for each 250 CY of material excavated or hauled to the site, or when there is a noticeable change in material while work is progressing; Atterberg limits, Natural Moisture Content, Sieve Analysis with 200 wash, and Standard Proctor Compaction (ASTM D-698).

Field density and moisture content tests shall be performed by the Contractor in accordance with these Specifications and the QA/QC plan as approved and directed by Engineer or his representative. Testing shall be performed in accordance with the maximum dry density and optimum moisture criteria developed for the fill material by the standard Proctor test

(ASTM D 698) as specified herein. The Contractor shall furnish a suitable compactor(s) to facilitate fill placement and compaction. Compaction equipment must be approved by the Engineer. One compaction test will be performed by the Contractor for each 50 CY of compacted fill. A minimum of one test shall be performed per working shift if less than

50 CY of fill is placed during a working shift. Test results shall be reported to the Engineer in writing daily. Fill materials that are too wet to compact or have become unstable due to construction traffic will be removed and replaced with cohesive fill at no additional cost to the WVDNR. Only hand compaction equipment can be used within 5 ft. of the new outlet channel/headwall and the walls of the channel and headwall will be braced during backfill as approved by the Engineer.

2.03.7 Temporary Access: The Contractor shall furnish a temporary access road and working pad adjacent to the pond for equipment and vacuum pump truck access. This work shall include stripping and stockpiling topsoil, placement of geotextile, and 6-inches of crushed base stone. At completion, the stone and fabric shall be removed and disposed offsite as approved by the Engineer and the area reclaimed by replacing topsoil and seeding and mulching. This work shall be subsidiary to this pay item and no separate payment will be made.

2.03.8 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 4.0 Site Work (LS)

2.04 CRUSHED STONE BASE AND RIPRAP

2.04.1 Scope: The Contractor shall furnish the labor, equipment, and material required to furnish, place, and compact crushed stone base aggregate and riprap as shown on the Design

Drawings and as approved by the Engineer. The Contractor shall also furnish all material, labor, and equipment to load, haul, and place riprap as shown on the Design Drawings.

This item shall include furnishing riprap from a commercial source. Rock derived from onsite excavations and demolition debris is not suitable for use as riprap. Riprap must be

2.04.2 Materials:

2.04.2.1 Crushed Stone Base Aggregate: Crushed stone aggregate shall consist of limestone and shall consist of Class 2 Base Stone (307-2). Crushed stone aggregate shall comply with the West Virginia Department of Transportation - Division of Highways

Standard Specifications for Roads and Bridges, latest edition. The base stone shall be underlain by geotextile if shown on the Plans. Geotextile shall consist of a woven fabric;

Mirafi 500X or equal as approved by the Engineer.

2.04.2.2 Riprap: Rock for riprap shall be placed in the plan area and to the thickness as shown on the plans. Riprap shall consist of limestone and shall have the following gradation:

Inlet: The riprap at the weir inlet shall be 12 inches thick and shall be furnished with a

D50 size of 6 inches and rock shall range in size from 3 inches minimum to 9 inches maximum diameter with no more than 15 percent by weight less than 3 inches.

Outlet: The riprap at the weir outlet shall be 27 inches thick and shall be furnished with a

D50 size of 18 inches and rock shall range in size from 4 inches minimum to 27 inches maximum diameter with no more than 15 percent by weight less than 4 inches.

The Contractor should be aware that no provisions have been made to obtain rock on site.

All rock riprap used throughout the project site shall consist of stone meeting the following requirements. The rock riprap shall have a maximum weighted loss of thirty (30) percent

(%) when subjected to five (5) cycles of the Sodium Sulfate Soundness Test – ASTM C88

(ASTM C88-99a 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.

2.04.3 Construction:

2.04.3.1 Base Stone: The crushed stone shall be placed and compacted in one uniform lift as required to provide a final thickness of 6 inches as required by the Design Drawings.

The crushed stone shall be compacted to a minimum of 95% of the maximum dry density as determined by the standard Proctor laboratory test (ASTM D 698).

2.04.3.2 Riprap: Construction procedures shall be such that the face of the riprap will be smooth and within the approximate limits as shown on the Drawings. If deemed necessary by the Engineer, soundness testing may be performed on the riprap materials to verify the durability of the rock proposed for use. Install as shown on the Design Drawings and as approved by the Engineer

2.04.4 Measurement and Payment: No pay item. Crushed stone base and stabilization fabric is subsidiary to the Site Work Pay Item and no separate payment will be made. Riprap is incidental to the Contact Box Modification Pay Item and no separate payment will be made.

2.05 EROSION AND SEDIMENT CONTROL

2.05.1 Scope: The Contractor shall provide all labor, equipment, and materials necessary to construct and maintain all sedimentation structures/devices and accumulated sediment as shown on the Design Drawings. The Contractor shall adopt, implement, and comply with the approved erosion control plans and any modifications necessary during construction as required by the regulatory agency or the Engineer to prevent sedimentation of the stream.

The plan shall, as a minimum, include silt fence, rock checks, and stabilized construction entrance (SCE) at locations shown on the Design Drawings and any other measures necessary for implementing erosion control which is satisfactory under all state and federal regulations. The Contractor shall modify erosion and sediment control structures/devices as the work progresses to match changing conditions and prevent sedimentation of the receiving stream. This may include construction of ditches, rock checks, silt traps, silt bags, or other measures. The Contractor will be responsible for implementing these measures and complying with all applicable regulations. The Contractor will be responsible for payment of any fines resulting from inadequate erosion and sediment control measures and/or maintenance of the same. The work shall be performed in general accordance with the West Virginia Division of Environmental Protection Best

Management Practice Construction Manual. The recommended erosion and sediment control measures shall be installed prior to any other work. Silt traps and silt fencing should be cleaned out periodically as necessary to insure proper performance. The Contractor shall maintain the sediment control measures and remove the same after vegetation is established as required by these Specifications.

Temporary seed will be applied to all disturbed areas which will not be touched by construction for a period of 7 days or longer. Temporary seeding will be approved by the

2.05.2 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 7.0 Erosion and Sediment Control (LS)

2.06 SEEDING, FERTILIZING AND MULCHING

2.06.1 Scope: The Contractor shall furnish the labor, equipment, and materials necessary to spread topsoil, fertilize, seed and mulch all disturbed areas including the borrow area.

2.06.2 Materials: Seed shall consist of a Type "C" mixture which comply with Section 652.5 of the West Virginia Department of Highways Standard Specifications for Roads and

Bridges, latest edition.

2.06.3 Construction: Seeding, fertilizing and mulching shall be performed in accordance with

Section 652 of the West Virginia Department of Highways Standard Specifications for

Roads and Bridges latest edition, and as directed or approved by the Engineer. All disturbed areas will be seeded as soon as possible to minimize erosion. All completed construction areas shall be seeded immediately after completion or as directed by the

2.06.4 Warranty Period: The Contractor shall warrant the re-vegetation for a period of 1 year from the date of the initial seeding. Final acceptance will be based on a vegetative coverage of at least 75% in the opinion of the Engineer. A second seeding will be applied after 6 months if adequate growth and coverage is not obtained. A third seeding will be applied after one year if deemed necessary by the Engineer.

2.06.5 Measurement and Payment: Pay items are listed below and discussed in Section 1.22:

Pay Item 8.0 Seeding, Fertilizing, and Mulching (LS)

Loading, hauling, spreading, and compacting topsoil, as required to promote growth and as directed by the Engineer will be considered subsidiary to the seeding and mulching operation and no separate payment will be made for this work.

2.07 DEWATERING AND WATER CONTROL

2.07.1 Scope: The Contractor shall furnish labor, equipment, and materials necessary to lower the pond level to the top of the sludge and dewater the excavations as specified herein or as required by the Engineer during construction. This work item shall also include dewatering of all construction areas in accordance with these Specifications. The drain valve is believed to be operable. However, this has not been verified and if found to be blocked by sediment or inoperable for any reason, de-watering measures may include sumps, well points, pumps, diversion ditches, coffer dam, etc. to provide dry working conditions necessary to complete construction and comply with these Specifications.

2.07.2 Method and Requirements: As discussed in the Site Work Section of these Specifications, the pool will be lowered to the top of the sludge using the drainpipe if operable or by pumping through a silt bag before release to the stream. Also, all excavation and fill areas will be dewatered a minimum of 1 ft. below the sub-grade level during all construction activity.

The Contractor will be fully responsible for the protection of work in progress due to stormwater runoff or run-on including an elevated river level due to storm conditions.

Should damage to work in progress occur because of the Contractors failure to control water for any reason, the Contractor shall repair all damage to the satisfaction of the

Engineer at no additional cost to the Owner.

2.07.3 Dewatering and Water Control Plan: Prior to beginning work on the project, the

Contractor shall submit a de-watering and water control plan for the pond and excavations.

This plan shall be submitted to the Engineer for review and approval a minimum of 15 days prior to beginning any work on the project and shall as a minimum include:

• Work sequence with phases of work proposed.

• Procedures for de-watering and control of water during each phase of the project.

• Equipment and personnel to be used for de-watering and water control.

The plans must be approved before beginning work. However, the Engineer’s approval of the plans does not relieve the Contractor from his obligation and responsibility to protect work in progress and to repair any damage to the same at no cost to the Owner.

2.07.3 Measurement and Payment: No pay item, dewatering is subsidiary to the Site Work

Pay Item and no separate payment will be made.

2.08 CONTACT BOX MODIFICATIONS

2.08.1 Scope: The Contractor shall furnish all material, labor, and equipment to modify the inlet and outlet sides of the contact box to provide a weir inlet and channel discharge with headwall to Reed’s Creek. The box will be sawcut to remove the existing piping on the inlet and outlet sides of the contact box. The sawcut openings will be filled with reinforced concrete to serve as a weir on the inlet side and a new rectangular box discharge channel constructed to drain to Reed’s Creek on the outlet side. This work will also include the grating across the new outlet channel suitable for foot traffic and mower support. The new reinforced concrete patch on the inlet and outlet sides of the contact box will include a water-stop and will be dowelled into the existing box as shown on the Plans and approved by the Engineer. The new channel and headwall will be reinforced and will include water stop as shown on the Plans. Excavation and fill/backfill will be incidental to the Site Work

Pay Item and no separate payment will be made.

2.08.2 Materials:

2.08.2.1 Concrete shown on the Plans shall comply with Section 2.11 of these

Specifications. Reinforcement and dowels shall be epoxy coated grade 60 - No. 4 bars and shall comply with Section 2.12. Grout or epoxy used to set dowels shall be approved by the Engineer.

2.08.2.2 Water-stop to seal the new concrete fill and existing box sawcut shall be RX-

102 Expanding Concrete Joint Water-stop manufactured by CETCO, or equal (Phone 1-

800-851-1800).