ADDENDUM 4 ARFQ DEP24-33.pdf

AGENCY SOLICITATION NUMBER – ARFQ DEP2400000033

Addendum Number: _4___

The Purpose of this addendum is to modify the solicitation identified as (“Agency Solicitation”) to reflect the change(s) identified and described below.

Applicable Addendum Category:

[x] Modify bid opening date and time

[x] Modify specification of product or service being sought

[x] Attachment of vendor questions and responses

[x] Attachment of pre-bid sign-in sheet

[] Correction of error

[x] Other

Description of Modification to Solicitation:

This Addendum issued to publish and distribute the attached documentation to the vendor community.

1. Questions & Answers

2. Clarifications, Notes & Changes

3. Revised or New Commodity Lines

4. Revised or Added Specifications and Drawings

5. Sign in Sheets

6. Extend Bid Opening to December 21, 2023

Additional Documentation: Documentation related to this Addendum (if any) has been included herewith as Attachment A and is specifically incorporated herein by reference.

Terms and Conditions:

1. All provision of the Agency Solicitation and other addenda not modified herein shall remain in full force and effect.

2. Vendor should acknowledge receipt of all addenda issued for this Agency Solicitation by completing an Addendum Acknowledgement, a copy of which is included herewith. Failure to acknowledge addenda may result in bid disqualification. The addendum acknowledgement should be submitted with the bid to expedite document processing.

Addendum 4 - Questions During The Pre-Bid Conference For

Energy Marketing Co., Inc. UO-885 Reclamation Project

ARFQ DEP24*33

The following questions were identified at the Pre-Bid Conference (PBC) conducted on-site on 09

November 2023 and questions received from DEP Procurement. The answers and clarifications provided herein take precedence over verbal answers at the PBC and previously provided specifications and descriptions provided in the Solicitation should there be any conflicts between the two.

Q1: Is the Incidental Stone item to be used for Road Maintenance?

A1: Yes, please see Technical Specification 5-2, Road Maintenance, subsection 1.0.A.

Q2: Is it required that all refuse yardages be surveyed to ensure payment by cubic yard?

A2: Yes, a pre-construction survey should be completed in addition to intermittent surveys and a final survey to ensure accuracy. If the yardage is not properly surveyed, then WVDEP will be unable to properly compensate the awarded contractor for the work.

Q3: The Refuse Area is about 100,000 cubic yards, where does the other fill material come from for backfilling the highwall?

A3: When originally stripped mined, the overburden was stockpiled further up the valley on the hillside just past the highwall. This is marked as the Borrow area in the drawings.

Q4: What are the compaction requirements for the backfill? How will compaction be measured?

A4: Please see Technical Specification 6-5, 2, which calls for 90 percent maximum dry density compaction of the highwall backfill. Compaction testing shall be by “proof rolling”, as per

Technical Specification 4-3.C.

Q5: What is the largest boulder allowed in the backfill?

A5: Typically, no boulder larger than 3 feet on a side is allowed in the non-structural backfill, however, the Inspector may allow larger boulders depending upon the size, depth of fill, and location. Please see Technical Specification 6-5.C.2.b and c.

Q6: How high should the Refuse and other AMD producing potential material be placed off the base of the backfill?

A6: Refuse should be a minimum of four feet off the floor of the backfill, and away from the highwall, as per Technical Specification 6-5.5.

Q7: Where are the details for the benches?

A7: Please see Sheet 26 of the drawings.

Q8: What is to be done with the Clear and Grubbed material?

A8: All Cleared and Grubbed vegetative material is to be burned to ash, as per Technical

Specification 5-1.H.5.

Q9: With respect to the excavation numbers shown on sheet 9, what group of numbers refer to which area?

Addendum 4 - Questions During The Pre-Bid Conference F or Energy Marketing Co., Inc. UO-885 Reclamation Project

A9: The group “Regrade with Benches” refers to the highwall backfill area, the “2% area + bridge” refers to the Refuse pile area, and the “Borrow Area – 3” refers to the borrow area.

Q10: The scales of the profile sheets seem to be wrong. What are the correct scales?

A10: The sheets are set to be printed out on 36 inch by 24 inch paper, landscape orientation. A check of the individual profiles did not show any scale errors.

Q11: What type of E&S control is required for the green lines shown on drawings 29,30,31 &

32?

A11: The contractor may use super silt fence, silt fence, hay bales, or silt socks. Whatever type is used, it must work.

Q12: Please clarify the breakdown for the 390,000 CY of unclassified excavation.

A12: Please see Sheets 09 and 21 of the drawings.

Q13: Does a qualified Geotechnical Engineer need to be present during filling or proof rolling operations?

A13: No.

Q14: Since the quantity of tires to be disposed of is unknown, can the awarded contractor be paid for the disposal of the tires at an agreed upon rate?

A14: The site has been made available for viewing at the contractor’s convenience. The contractor must determine what trash or garbage must be disposed of in preparing his bid.

Trash removal is paid for in the Site Preparation line item, which is a lump sum bid item.

Q15. What is the approximate depth of the water well?

A15. The exact depth is unknown. It is believed to be about two hundred feet deep.

Q16: Are any gates required for the fence bid item?

A16: Yes, a gate will be required on the sediment pond.

Q17: Can the client extend the bid date until 12 December 2023?

A17: The bid date has been extended to 14 December 2023.

Q18: Can the client extend the questions due date by two weeks until 30 November 2023?

A18: No, questions are due by 16 November 2023.

Q19: What type of liner is required for Ditch 10?

A19: 60 mil HDPE liner.

Q20: The plans call for a 3X3 underdrain, but I can not find a detail on it and it is not listed as a bid item. Is this to be installed?

A20: Yes, please see Sheet 28 for a standard detail of an underdrain, but note that this seep collector is to be of 8 inch DR17 HDPE, not PVC. It is Bid Item Number 30.

Q21: Since the project is not expected to start until February 2024 will the contractor be compensated for any significant changes in fuel prices?

A21: Currently, no mechanism exists for a WV State contract to take into account a situation such as this.

Q22: Can the concrete foundations, including rebar and minor steel, be processed into smaller chunks and left onsite in the fill area? Can any cinder blocks be left on site in the fill area?

A22: Yes. Any concrete should be broken up into pieces no larger than 3 feet on a side and buried in the highwall backfill. Cinder blocks need to be crushed before placing in the backfill.

Q23: Are there any bore holes for the coal refuse pile or designated borrow area?

A23: No.

Q24: Since we are placing loose fill to 90% compaction next to a highwall rock face, what will the procedure be if the fill area settles during the warranty period?

A24: If the fill settles and creates any cracks, the contractor would need to bring it back to grade and seal off any cracks at their expense under warranty. It is the responsibility of the contractor to figure out what procedure and equipment will be used.

Q25: What is the casing size for the water well that needs to be capped? Is there still a pump?

A25: The well is about a six inch diameter cased well. No pump is in the well. Please note that the well must be sealed by a certified WV well driller in accordance with the West

Virginia Bureau of Public Health Water Well Design Standards 64-46-12, Water Well

Abandonment.

Q26: Will the contractor be able to use a water source on site for compaction and dust control?

A26: There is a small stream that runs through the Impoundment Area.

Q27: Is the intent of the project to only use on site borrow and coal waste for the highwall fill?

A27: Yes.

Q28: Are the ditches to be lined with Mirafi fabric or 60 mil HDPE?

A28: The ditch schedule on Sheet 24 notes that only Ditch 10 is to have a HDPE liner, the other lined ditches are Mirafi fabric.

Q29: If the contractor reaches grade in the refuse pile area and the black material is present, will the contractor be required to undercut a certain depth and replace with clean dirt? If so, how will the contractor be compensated for undercutting?

A29: Yes, undercut the area to one foot of depth into clean soil. Quantities will be based upon the surveys made of the area.

Q30: Have the existing structures been inspected for asbestos or lead?

A30: No.

Q31: The line item quantity for ditch 5 is 280’ but the drawings indicate 580’. Which is correct?

A31: The drawings are correct.

Q32: Can the DEP clarify if they have received permission from the coal company to access the project via the existing mine site?

A32: Yes.

Q33: Will the contractor be permitted to bring stone deliveries through the mine property?

A33: Yes, the contractor must co-ordinate with the active mine operations for access.

CLARIFICATIONS, NOTES AND CHANGES

1. Additional fencing will be added to the project, please see the revised drawings as appropriate.

2. A sediment pond and a cattle waterer will be added to the project.

3. Indian Fork Road will handle vehicular traffic up to and including tri-axle trucks. Heavy equipment will need to be brought in by the haul road that goes through an active mine permit. Travel through the active permit must conform to MSHA requirements. Line item

24, Culvert, 24 inch is in the project if needed, but may not be required.

4. Road maintenance covers both Indian Fork Road from the end of blacktop and on the road going through the active mine permit and shall be billed to line items 25 Incidental Stone, Limestone and 26 Road Maintenance.

5. The new line item 34 Sediment Pond is for the shaping, sloping, keyway, berm work, etc.

Included is a minimum of 20 LF trapezoidal grouted ditch with a 2 Feet bottom width, 10

Feet top width prior to entering and existing the pond. Also, under this line item 34 shall be 120 LF of Grass Line with RECP Type III. The pond soil excavation will be paid under line item 22 Unclassified Excavation.

REVISED OR NEW COMMODITY LINES

1. Revised Commodity Line Item 14, Ditch 5, quantity increased to 580 LF.

2. Revised Commodity Line Item 22, Unclassified Excavation, quantity increased to 400,000

CY.

3. Revised Commodity Line Item 28, Farm Fence and Gates, quantity increased to 3,700 LF.

4. New Commodity Line Item 33, 2 inch HDPE DR 17 Conveyance Line, quantity to read

500 LF.

5. New Commodity Line Item 34, Sediment Pond, quantity to read 1 LS.

6. New Commodity Line Item 35, Cattle Waterer, quantity to read 1 EA.

REVISED OR ADDED SPECIFICATIONS

1. Technical Specification 6-5 Unclassified Excavation was updated to incorporate new line items.

2. Technical Specification 9-11 Cattle Waterer was inserted to for the new line item.

3. Technical Specification 10-15 HDPE Pipe and Fittings was updated to incorporate new line items.

REVISED OR ADDED DRAWINGS

Note: Any revised plan sheets shall take precedence over the original referenced plan sheets when referenced in the project documents.

Sheet 03R of the project plans was revised to update the summary of quantities.

Sheet 06R of the project plans was revised to correct the graphical distance barscale to the proper dimension.

Sheet 07R of the project plans was revised to correct the graphical distance barscale to the proper dimension.

Sheet 09R of the project plans was revised to show the location of the sediment pond and the cattle waterer.

Sheet 09A of the project plans was added to provide the cattle waterer details and sedimentation pond notes.

Sheet 22R was revised to show a scale of 1 inch equals 100 ft.

Sheet 23R was revised to show the proper Ditch number, 10 instead of 9, through the old impoundment area.

Sheet 24R of the project plans was revised to show corrected dimensions for the top widths of

Ditches 5 through 9.

6-5 (1)

6-5 UNCLASSIFIED EXCAVATION

1.0 GENERAL

This work shall consist of excavating, transporting, stockpiling, placing and compacting refuse, soil, rock or other materials encountered in the grading of the project area and any other indicated incidental work.

2.0 MATERIALS

Fill material shall be considered a mixture of soil or rock or soil and rock commingled with coal refuse encountered during excavation operations. The WVDEP shall consider all excavation “UNCLASSIFIED” regardless of any core boring or test pit data provided. This data (if provided) is not a guarantee of materials encountered throughout the construction area. There will be no additional payments for hard rock excavation (i.e. air hammer, blasting, etc.)

3.0 BORROW AND SPOIL AREAS

A. When required, designated disposal and borrow areas shall be shown on the

Project Plans. Soil cover shall be obtained as detailed in Section 4.0 of this Specification. Soil encountered within the project area is anticipated to produce suitable material for use as backfill and soil cover in the project area.

B. Offsite Borrow/Disposal Area

When during construction there is inadequate space for disposal and/or adequate soil material is not available within the Construction Limits, the Contractor shall be responsible for securing disposal and/or borrow area(s) outside the Construction Limits at no cost to the WVDEP.

The Contractor shall be responsible to obtain from the property owner(s) of the borrow and disposal areas, all necessary rights of entry, including rights of entry for WVDEP and OSMRE for inspection purposes and by the property owner. The said rights of entry agreement must state that the property owner(s) agree to indemnify and hold harmless the WVDEP from all liability and/or damages resulting from the Contractor’s use of property for which the Contractor was to obtain rights of entry for borrow, disposal, access, soils testing, or other purposes. Said indemnification shall include, but is not limited to, liability and damages resulting from the Contractor’s failure to obtain any or not all the rights of entry; failure to obtain the proper rights of entry; failure to utilize appropriate language in the rights of entry agreements;

or failure to obtain permission and signature of all persons or entities holding a legal interest in the subject property(ies) covered by the rights of entry.

6-5 (2)

The Contractor shall submit to the Regional Engineer offsite borrow/disposal area(s) for approval of use. The Regional Engineer reserves the right to have the borrow material tested for quality and contamination at the Contractor’s expense. In addition, prior to use of the area, the Contractor shall submit a plan detailing cut/fills, access roads, permit, easements, etc. to the Regional Engineer for approval of site. All work performed offsite shall comply with the contract documents, including but not limited to Technical Specification 6-1 Revegetation and Technical Specification 6-2 Sediment and Erosion Control.

Construction performed on offsite barrow and or disposal site shall become part of the Contract and therefore part of the Contract Warranty.

The Contractor shall be held responsible for compliance with all NEPA requirements and shall provide proof of such compliance to the Regional Engineer. 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.

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

2. 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.

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

4. 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.

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

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

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

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

9. 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.

6-5 (3)

4.0 SOIL COVER

A. This work consists of covering all areas reaching final grade with a one (1) foot thick layer of suitable soil material capable of supporting vegetation. The soil cover material shall be obtained in conjunction with clearing and grubbing operations, regrading and/or drainage feature and other planned excavations and as directed and approved by the Inspector. Areas reaching final grade in exposed coal or coal refuse shall be undercut a minimum of twelve (12) inches with a minimum of twelve (12) inches of soil material placed over the exposed coal or refuse to the lines and grades shown on the Project Plans.

B. All topsoil encountered during excavation operations shall be stockpiled and used as a general cover of the site at final grade and soil cover for encountered coal, refuse, exposed coal seams, bedrock, and buried materials at final grade elevations.

1. Topsoil for the restoration of temporarily disturbed areas (such as office trailers, parking areas, etc.) shall consist of a four (4) inch thick layer of loose, friable, and loamy topsoil.

2. The topsoil shall be free of refuse or any foreign materials and shall contain not less than five percent nor more than twenty percent organic matter.

3. Topsoil shall be denuded of all burnable materials prior to stripping and shall be free of subsoil.

4. The surface of the topsoil and all other areas to be seeded shall be raked, rolled, and graded smooth with adjoining areas.

5.0 REFUSE

Iron precipitate, coal or coal refuse, and black or dark gray shales, acidic materials, and other on-site potentially toxic materials shall be specially handled to the satisfaction of the Inspector. Coal and coal refuse, black or dark gray shales, acidic material, and other on-site similar materials to be buried in-place shall not be placed in any water course, within one (1) foot, minimum, vertically of any coal seam or four

(4) feet, minimum, horizontally of the highwall or designated backfill area. The refuse shall be compacted and placed beneath a cap of two (2) feet if available (minimum of 12 inches), of soil cover (capable of supporting vegetation) and proposed final grades depicted on the Project Plans.

All coal refuse shall be covered with a minimum of two (2) feet of the best available non-toxic and non-combustible material that will support vegetation. Based on physical and chemical analysis, alternative thickness of cover material may be permitted.

Liming of open pits is to be carried out at a rate of 40 tons/acre. All potentially toxic material shall be cleaned from the pavement prior to spreading lime uniformly over

6-5 (4) the exposed pavement. This potentially toxic material shall be placed on a pad prepared in the backfill. The top of the pad shall be a minimum of four (4) feet above the pavement, located out of any water course and away from the highwall. Lime shall be blended with the toxic material or (lime shall be spread over top of toxic material). Coal refuse shall be treated in the same manner as the toxic material above. Lime at a rate of 40 tons/1000 tons. (Unless testing shows other amounts)

Unless otherwise specified, all lime used shall comply with Technical Specification 6-1 Revegetation Subsection 1.1. The use of blends and low-grade agricultural liming materials shall require prior Regional Engineer approval. Lime shall be spread as soon as possible after delivery to site. Lime shall be applied evenly and uniformly distributed over the treated area. Lime shall be thoroughly mixed into the soil material. Lime shall not be stored onsite more than 60 days.

6.0 TREATMENT POND AND STORMWATER STRUCTURE CLEANINGS

A. Metal Precipitant

1. Metal precipitant shall be disposed in an Inspector approved non-structural location, covered, and vegetated.

B. Soil Sediment

1. Sediment of acceptable quality can be incorporated into the final soil layer with Inspector approval.

2. Sediment that is not of acceptable quality shall be disposed in an Inspector approved non-structural location and vegetated.

7.0 METHOD OF CONSTRUCTION

A. The Contractor shall comply with all Special Provisions.

1. The Contractor shall comply with OSHA Regulation 29CFR1926 Subpart P for excavation of trenches associated with pipe, culvert, subsurface drains, wet mine seal constructions, and similar constructions.

2. The Contractor shall adhere to sequence of construction as outline in the Special Provisions. The Contractor shall not allow water to enter or pool in constructed ditches, pipes, or subsurface drains until all components have been installed and are operational and the construction has been approved by the Inspector. Work shall proceed downstream to upstream, bringing the site to grade and installing drainage control structures. The Contractor shall comply with Technical Specification Section 6-2 Sediment and Erosion Control.

B. Excavation

6-5 (5)

1. Material excavation shall consist of the required removal of materials from areas shown with the slopes and finish grading of the areas depicted on the Project Plans. Any excavation beyond planned areas will not be paid for unless written authorization is obtained from the Regional Engineer. Slopes shall be trimmed neatly to present a uniform surface, free from hollows, protrusions, and loose or overhanging rocks. The tops of all slopes shall be rounded to form a smooth, uniform transition to existing ground.

2. Generally, the material to construct fills and grades shown on the Project Plans is located directly adjacent to the fill area. In no instance will the Contractor have the need to move material from one balanced area to another balanced area without prior authorization from and the express written consent of the Regional Engineer.

3. The reclamation approach described in these construction specifications and shown on the Project Plans is intended to provide a lasting, stable configuration. The Contractor is required to exercise care to avoid conditions which may result in unstable conditions during the construction process. The Contractor shall be responsible for protecting adjacent properties and structures along with completed onsite work from damage. The Contractor must utilize material removal techniques, which are generally considered to be conducive to retaining slope stability. Additionally, disturbed slopes shall be brought to the design profile as soon as practical and shall be protected in accordance with Technical Specification Section 6-1 Revegetation.

4. All vegetation and organic material (except for stumps located in non-structural backfill that are located greater than five (5) feet from finished grade) shall be removed from the disposal and fill areas prior to placement of excess spoil or backfill.

C. Material Placement

All excavated materials shall be moved and deposited as shown on the Project Plans and detailed in these specifications. Field adjustments to elevations, lines, and grades may be required to correctly construct this project as shown on the Project Plans. Such adjustments shall be made by the Contractor at no additional costs to the WVDEP. The Regional Engineer reserves the right to increase or decrease any or all the quantities of work or to omit any work, as deemed necessary.

The Contractor shall comply with Technical Specification 6-2 Sediment and Erosion Control Subsection 1.2.E during the project. After prolonged precipitation events, if soil surfaces become too wet and plastic to work properly, the top material shall be removed to expose firm material. Ruts in the surface of any layer shall be suitably filled or eliminated by grading before compaction.

6-5 (6)

The Inspector reserves the right to determine if the hauling equipment causes horizontal shears or slicken-slides, rutting, quaking, heaving, cracking, or excessive deformation where material is placed, the Contractor shall limit the type, load or travel speed of the hauling equipment on areas where the material is placed. During material placement, the Contractor shall remove from the areas of fill any material the Inspector considers objectionable and shall dispose of such material and refill the area as directed and at no additional cost to the WVDEP. The Contractor shall select compaction equipment that will produce the specified density. Should fill areas become sealed with a slick surface, the Contractor at the discretion of the Inspector may be required to scarify the surface to a depth of four (4) inches prior to placement of the next lift.

The Contractor shall insure that backfilling over trenches and other excavation is well compacted prior to seeding. f settlement occurs after seeding and during the term of the Contract or prior to the end of the Project Warranty, the Contractor shall fill the settled areas with approved topsoil, re-fertilize and reseed the area.

The regrading plan shall be conducted in a manner such that topsoil encountered and stockpiled shall be uniformly spread over the entire final graded area to be vegetated. The top soil cover shall not be compacted to the specifications stated for fill compaction but shall be placed in a manner to allow for proper establishment of vegetation. Excess stockpiled soil must be either removed or permanently stabilized within fifteen (15) days of completion of the construction

The Contractor shall revegetate all disturbed areas by the method given on the Project Plans while complying with Technical Specification Section 6-1 Revegetation.

Fill materials to be used in any area of fill placement shall be free from trash, debris, frozen soil, organic material or other foreign material. No burning refuse (defined as greater than 140º F) and/or combustible material shall be placed in fill areas.

1. Structural Backfill

Structural Backfill is soil and/or aggregate used as fill to bring a site to a required elevation grade for additional construction to take place on top of the backfill. Examples of these types of areas are, but not limited to ponds, silos, buildings, roads, parking areas, treatment processes, etc.

Compaction shall meet the following:

6-5 (7)

Description % of Maximum Dry Density

Foundations 98% + 3% Building Slabs 98% + 3% Concrete Tanks 98% + 3% Embankment Fill 95% + 3% Embankment Subgrade 95% + 3% Roadway Subgrade 95% + 3% Roadway Aggregate Base Layer 95% + 3% Roadway Aggregate Top Layer 95% + 3% Culvert Backfill 95% + 3% Foundation Backfill* 95% + 3%

*Backfills against foundations shall be done in manner to prevent horizontal displacement of material adjacent to foundations.

Compaction equipment shall not contact foundations nor be operated in a manner that could cause damage to foundations. Any damage to foundations shall be repaired or replaced at the Contractor’s expense at the discretion of the Engineer.

a. Soil lifts shall not exceed a compacted height at the specified maximum dry density of twelve (12) inches.

b. Aggregate lifts shall not exceed a compacted height at the specified maximum dry density of six (6) inches unless otherwise noted on the Project Plans.

c. Rock size no larger than nine (9) inch shall be permitted in soil backfill.

d. Embankment fill material that does not contain adequate moisture to be compacted to the requirements specified herein shall receive applications of water necessary for compaction.

Water shall be applied with suitable sprinkling devices and shall be thoroughly incorporated into the material that is to be compacted. Embankment fill material that contains excess moisture shall be dried prior to compaction. The Contractor shall maintain adequately sized discing equipment onsite for soil conditioning (i.e. adding or reducing moisture).

e. Prior to fill placement, all unsuitable material, as determined by the Inspector, shall be removed. The WVDEP reserves the right to have the Contractor to test soil for suitability.

2. Non-Structural Backfill

Non-Structural Backfill is fill that is placed at locations where NO additional construction (surcharge loads) shall take place. Examples of these types of areas are, but not limited to highwall backfill, some spoil areas, etc.

6-5 (8)

Compaction shall meet the following:

Description % of Maximum Dry Density

Soil Backfill 90% + 3% Embankment Fill for Lawns 90% + 3%

a. All excess spoil shall be transported and placed only on the solid portion of the bench in a controlled manner in horizontal compacted lifts not exceeding four (4) feet in thickness. The area shall be backfilled and graded to conform to the lines and grades as indicated on the Project Plans.

b. Boulders may or may not be apparent on the surface of the Project area but may be encountered during excavation operations. Boulders to be incorporated into the fill shall not be greater than three (3) feet in any dimension, segregated and not concentrated in any fill location, and shall be buried at least twelve (12) inches below finished grade.

c. Boulders larger than three (3) feet in any dimension shall be either reduced to less than three (3) feet in any dimension or placed at a designed location on the Project site at the discretion of the Inspector.

d. Depositing and compacting fill in layers shall be started at the lowest point in the fill below grade and be advanced in horizontal lifts.

e. For non-structural backfills where the fill point begins less than five (5) feet below the finished grade, the Contractor shall at no expense to the WVDEP, remove all material that is deemed unsuitable by the Inspector.

f. For non-structural backfills where the fill point begins at a depth of five (5) or greater below the finished grade, the Contractor shall construct the initial lift with the most durable material available in a lift thickness deemed appropriate by the Engineer to provide support for equipment and to construct subsequent lifts. The Inspector reserves the right to have the Contractor to perform proof roll test of the soil for suitability.

3. Pipe Backfill

a. The Contractor shall backfill piping with the appropriate material as given by the Project Plans to twelve (12) inches above the top of the pipe.

b. Six (6) inch loose lifts shall be placed and compacted to four

(4) inches until final finished graded is reached.

6-5 (9)

8.0 QUALITY CONTROL

Compaction testing shall be conducted in accordance with Technical Specification 4-1 Quality Control.

9.0 METHOD OF MEASURMENT

A. The method of measurement for determining quantities for per unit bid item(s) shall include furnishing all materials and doing all the work prescribed in a workmanlike and acceptable manner, including all labor, tools, equipment, supplies, and incidentals & appurtenances necessary to complete the work as shown on the Project Plans.

B. The method of measurement for determining quantities for lump sum bid in a workmanlike and acceptable manner, including all labor, tools, C. Projects requiring the movement of earth (i.e., cut/fill) shall be paid based on the amount of material cut. The volume of cut shall be calculated by AUTOCAD Surface Comparison, five-foot by five-foot square, between a pre-construction and post-construction topographical survey.

D. Any excavation needed to complete items not listed under the “PAY ITEM” section below will be considered incidental to that item and at no additional cost to DEP.

9.1 BASIS OF PAYMENT

A. Per unit bid item(s) shall be paid per unit bid and shall include the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform the work.

B. Lump sum bid item(s) shall be paid at the lump sum bid and shall include the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform the work.

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

9.2 PAY ITEM

“Ditch 1”, per Linear Foot.

“Ditch 2”, per Linear Foot.

“Ditch 3”, per Linear Foot.

6-5 (10)

“Ditch 4”, per Linear Foot.

“Ditch 5”, per Linear Foot.

“Ditch 6”, per Linear Foot.

“Ditch 7”, per Linear Foot.

“Ditch 8”, per Linear Foot.

“Ditch 9”, per Linear Foot.

“Ditch 10”, per Linear Foot.

“Access Road Construction”, per Linear Foot.

“Texas Crossing”, per Each.

“Unclassified Excavation”, per Cubic Yard.

“Culvert, 24 inch”, per Linear Foot.

“8 HDPE DR17 Conveyance Line”, per Linear Foot.

“8 inch HDPE DR 17 Seep Collector”, per Linear Foot.

“8 inch PVC SDR-35 Conveyance Line”, per Linear Foot.

“8 inch PVC SDR-35 Seep Collector”, per Linear Foot.

“2 inch HDPE DR 17 Seep Collector”, per Linear Foot.

“Sediment Pond”, per Lump Sum.

“Cattle Waterer”, per Each.

END OF SECTION

9-11 (1)

9-11 CATTLE WATERER

1.1 RELATED DOCUMENTS

A. Project Plans and general provisions of Contract apply to work of this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Four hundred (400) Gallon Waterer.

2. Float system to turn on/off the water flow to the tank.

1.3 SUBMITTALS

A. General: Submit the following in accordance with Special Provisions Section 0-11 Submittals.

1. Product data for each type of material required.

2. Provide Soil Conservation approval for use in WV.

1.4 BASIS OF DESIGN

A. The BASIS OF DESIGN for the Cattle Waterer is by Carr Concrete, P.O. Box 265, Waverly, WV 26184-0265, having been deemed to represent the minimum level of quality, performance, and service acceptable for this material. Equal material submittals will be in accordance with Special Provisions Section 0-13 Engineer Approved Equal.

2.0 PRODUCTS

2.1 MATERIALS

The waterer shall be constructed of five thousand (5,000) psi concrete reinforced with one hundred and twenty (120) linear feet of #4 (60) Grade reinforcing bar. Inlet and outlet couplings shall be Galvanized Malleable Iron.

9-11 (2)

2.2 DIMENSIONS

Weight………………………………4,500 pounds Height……………………………….30 inches Diameter…………………………….6.5 feet Bottom Thickness……………….…4 inches Wall Thickness…………….………..4 inches at the top, tapered to 8 inches at bottom Inlet………………………………… .1½ inch Outlet……………….……………… .2 inch

3.0 EXECUTION

3.1 INSTALLATION

A. Excavate and level an area seven and a half (7.5) feet in diameter. The depth of excavation and bedding are based on plan elevations. Dig a ten (10) to twelve (12) inch wide trench across the center of the excavation to a minimum depth of two (2) feet.

B. Set the tank on concrete blocks with the inlet and outlet lined up over the trench. Attach inlet and outlet overflow lines. After the lines are attached, raise the tank, remove concrete blocks, and set the tank down. Make sure the lines are lowered into the trench as the tank is lowered. Place earth into the trench, compacting the earth as the earth is being placed.

4.0 METHOD OF MEASURMENT

in a workmanlike and acceptable manner, including all labor, tools, in a workmanlike and acceptable manner, including all labor, tools,

4.1 BASIS OF PAYMENT

A. Per unit bid item(s) shall be paid per unit bid and shall include the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform the work.

9-11 (3)

B. Lump sum bid item(s) shall be paid at the lump sum bid and shall include the following items, which price and payment shall be full compensation for all materials, labor, equipment and incidentals necessary to perform the work.

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

4.2 PAY ITEM(S)

“Cattle Waterer”, per Each.

10-15 (1)

10-15 HDPE PIPE AND FITTINGS

The Specification provides minimum requirements for HDPE pipe and fittings to be used in the Project.

1.1 DESCRIPTION

A. Scope – This section specifies high density polyethylene pipe (HDPE) and fittings for water utility use as indicated on the Project Plans, and as specified herein.

1. Furnish, Install, and Test HDPE pipe as indicated and specified in this section, and as referred to in related sections, and the Project Plans.

2. The primary installation method is burial. The means and methods, including the testing for acceptance shall conform to all applicable standards as noted herein with the intention of providing a leak-free system to the WVDEP.

B. Special Instructions: None

1.2 RELATED WORK

A. The following sections are incorporated by reference:

1. Specia l Prov is ions Section 0-11 Submittals

2. Specia l Prov is ions Section 0-2 Coordination and Meetings

3. Technica l Specif icat ions Section 4-1 Quality Control

1.3 REFERENCES

A. To the extent referenced in this Specification section, the standards and documents listed below are included, and made a part of this Specification.

B. In the event of a conflict, the requirements of this Specification section prevail.

C. Unless otherwise specified, references to documents shall mean the latest published edition of the referenced document in effect at the bid date of the project.

10-15 (2)

ANSI/AWWA www.awwa.org

• ANSI/AWWA C901-08 Polyethylene (PE) Pressure Pipe and Tubing, ½ In. (13 mm) Through 3 In. (76 mm) for Water Service

• ANSI/AWWA C906-07 Polyethylene (PE) Pressure Pipe and Fittings, 4

In. (100 mm) Through 63 In. (1,600 mm), for Water Distribution and Transmission

• ANSI/AWWA C651 Standard for Disinfecting Water Mains

• AWWA M55 Manual of Water Supply Practices, PE Pipe–Design and

Installation Plastics Pipe Institute, PPI www.plasticpipe.org

• PPI Handbook of Polyethylene Pipe – 2009 (2nd Edition)

• PPI TR-33 Generic Butt Fusion Joining Procedure for Polyethylene Gas

Pipe

• PPI TR-34 Disinfection of Newly Constructed Polyethylene Water Mains

• PPI TR-41 Generic Saddle Fusion Joining Procedure for Polyethylene

Gas Piping

• PPI TN-42 Recommended Minimum Training Guidelines for PE Pipe Butt

Fusion Joining Operators for Municipal and Industrial Projects (2009) ASTM www.astm.org

• ASTM F 714 Standard Specification for Polyethylene (PE) Plastic

Pipe (SDR- PR) Based on Outside Diameter

• ASTM F905 Standard Practice for Qualification of Polyethylene Saddle-

Fused Joints

• ASTM F 1055 Standard Specification for Electrofusion Type Polyethylene

Fittings for Outside Diameter Controlled Polyethylene Pipe and Tubing

• ASTM F 1290 Standard Practice for Electrofusion Joining Polyolefin Pipe and Fittings

• ASTM F 1412 Standard Specification for Polyolefin Pipe and Fittings for

Corrosive Waste Drainage Systems

• ASTM F1417 Standard Test Method for Installation Acceptance of Plastic

Gravity Sewer Lines Using Low-Pressure Air

• ASTM F 2164 Standard Practice for Field Leak Testing of

Polyethylene (PE) Pressure Piping Systems Using Hydrostatic Pressure

• ASTM F2206 Standard Specification for Fabricated Fittings of Butt-Fused Polyethylene (PE) Plastic Pipe, Fittings, Sheet Stock, Plate Stock, or Block

Stock

• ASTM D 2239 Standard Specification for Polyethylene (PE) Plastic Pipe

(SIDR- PR) Based on Controlled Inside Diameter

• ASTM D 2321 Standard Practice for Underground Installation of

Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications

• ASTM F 2620 Standard Practice for Heat Fusion Joining of

Polyethylene Pipe and Fittings

• ASTM D 2683 Standard Specification for Socket-Type Polyethylene

Fittings for Outside Diameter-Controlled Polyethylene Pipe and Tubing

• ASTM D 2737 Standard Specification for Polyethylene (PE) Plastic http://www.awwa.org/ http://www.plasticpipe.org/ http://www.astm.org/

10-15 (3)

Tubing

• ASTM D 2774 Standard Practice for Underground Installation of

Thermoplastic Pressure Piping

• ASTM D 3261 Standard Specification for Butt Heat Fusion

Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and Tubing

• ASTM D 3350-08 Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

1.4 SYSTEM DESIGN PARAMETERS

A. The polyethylene system working pressure rating accommodates the normal operating pressure and the repetitive surges. The pressure rating applies at 80oF or less.

B. Per AWWA 901 and C906, the repetitive surge pressure allowance is one half the pressure class of the pipe, and the occasional surge over pressure allowance is equal to the pressure class of the pipe. Allowable Total Pressure during Recurring Surge conditions equals 1.5 times the pipe’s pressure class. Allowable Total Pressure during Occasional Surge conditions equals two (2) times the pipe’s pressure class.

Table 1 gives the Pressure Class per AWWA C901, Pressure Rating and Allowable Total Pressure During Recurring and Occasional Surge for

PE4710 pipe at 80oF or less. For PE 3608, refer to Table 2.

Table 1. Pressure Class per AWWA C901 for PE 4710 at 80oF or less

Pipe Dimension Ratio (DR)

Pressure Class

Pressure Rating

Allowable Total Pressure During

Recurring Surge

Allowable Total Pressure During

Occasional Surge

DR 9 250 psi 250 psi 375 psi 500 psi

DR 11 200 psi 200 psi 300 psi 400 psi

DR 14.3 150 psi 150 psi 225 psi 300 psi

DR 17 125 psi 125 psi 185 psi 250 psi

DR 21 100 psi 100 psi 150 psi 200 psi

Table 2 gives the Pressure Class per AWWA C901 and C906, Pressure Rating and Allowable Total Pressure During Recurring and Occasional

Surge for PE3608 pipe at 80oF or less.

10-15 (4)

Table 2. Pressure Class per AWWA C901 and C906 for PE 3608 at 80oF or less

Pipe Dimension Ratio (DR)

Pressure Class

Pressure Rating

Allowable Total Pressure

During Recurring

Surge

Allowable Total Pressure During

Occasional Surge

DR 9 200 psi 200 psi 300 psi 400 psi

DR 11 160 psi 160 psi 240 psi 320 psi

DR 14.3 120 psi 120 psi 180 psi 240 psi

DR 17 100 psi 100 psi 150 psi 200 psi

DR 21 80 psi 80 psi 120 psi 160 psi

1.5 SUBMITTALS

A. Quality Assurance / Control Submittals

1. Affirmation that product shipped meets or exceeds the standards set forth in this Specification. This shall be in the form of a written document from the Manufacturer attesting to the manufacturing process meeting the standards.

2. Manufacturers recommended fusion procedures for the products.

1.6 DELIVERY – STORAGE – HANDLING

A. Handle the pipe in accordance with the PPI Handbook of Polyethylene

Pipe (2ndEdition), Chapter 2 using approved strapping and equipment rated for the loads encountered. Do not use chains, wire rope, forklifts or other methods or equipment that may gouge or damage the pipe or endanger persons or property. Field storage is to be in compliance with AWWA Manual of Practice M55 Chapter 7.

B. If any gouges, scrapes, or other damage to the pipe results in loss of

10% of the pipe wall thickness, cut out that section or do not use.

2.0 PRODUCTS FOR 3 INCH AND SMALLER PIPE PER AWWA C901

2.1 PIPE

A. Polyethylene pipe shall be made from a HDPE material having a minimum material designation code of PE 4710 or PE 3608. The material shall meet the requirements of ASTM D 3350 and shall have a minimum cell classification of PE445474C for PE 4710 and PE345464C for PE 3608.

10-15 (5)

B. The pipe shall meet the requirements of AWWA C901.

C. HDPE pipe shall be rated for use at a pressure class of one hundred

(100) psi (DR-17 Minimum). The outside diameter of the pipe shall be based upon the IPS, CTS, or SIDR sizing system.

2.2 FITTINGS

A. Butt Fusion Fittings - Fittings shall be made of either PE4710 or PE 3608, with a minimum Cell Classification as noted in 2A.01A. Butt Fusion Fittings shall meet the requirements of ASTM D3261. Molded and fabricated fittings shall have a pressure rating equal to the pipe unless otherwise specified in the Project Plans.

Markings for molded fittings shall comply with the requirements of ASTM D 3261. Fabricated fittings shall be marked in accordance with ASTM F 2206. Socket fittings shall meet ASTM D 2683.

B. Electrofusion Fittings - Fittings shall be PE4710 or PE 3608, with a minimum Cell Classification as noted in 2A.01A. Electrofusion Fittings shall have a manufacturing standard of ASTM F1055. Fittings shall have a pressure rating equal to the pipe unless otherwise specified on the Project Plans.

C. Flanges and Mechanical Joint Adapters (MJ Adapters) – Flanges and Mechanical Joint Adapters shall be PE4710 or PE 3608, with a minimum Cell Classification as noted in 2A.01A. Flanged and Mechanical Joint Adapters can be made to ASTM D 3261 or if machined, must meet the requirements of ASTM F 2206. Flanges and MJ Adapters shall have a pressure rating equal to the pipe unless otherwise specified on the Project Plans. Markings for molded or machined flange adapters or MJ Adapters shall be per ASTM D 3261. Fabricated (including machined) flange adapters shall be per ASTM F 2206.

Van-Stone style, metallic (including stainless steel), convoluted or flat-plate, back-up rings and bolt materials shall follow the guidelines of Plastic Pipe Institute Technical Note # 38, and shall have the bolt-holes and bolt-circles conforming to one of these standards: ASME B-

16.5 Class 150, ASME B-16.47 Series A Class 150, ASME B-16.1 Class 125, or AWWA C207 Class 150 Series B, D, or E. The back-up ring shall provide a long-term pressure rating equal to or greater than the pressure-class of the pipe with which the flange adapter assembly will be used, and such pressure rating shall be marked on the back-up ring. The back-up ring, bolts, and nuts shall be protected from corrosion by a system such as paint, coal-tar epoxy, galvanization, polyether or polyester fusion bonded epoxy coatings, anodes, or cathodic protection, as specified

10-15 (6) by the project engineer.

D. Service connections shall be electrofusion saddles with a brass or stainless steel threaded outlet, electrofusion saddles, sidewall fusion branch saddles, tapping tees, or mechanical saddles.

For electrofusion saddles with threaded outlet the size of the outlet shall be one inch IPS unless a larger size is shown on the Project Plans.

Electrofusion saddles shall be made from materials required in Sub- Section 3.2 B of this Specification.

For sidewall fusion saddles, the size of the saddle shall be as indicated on the Project Plans. The saddle can be made in accordance to ASTM D 3261 or ASTM F 2206. After installation, approximately one quarter (¼) inch of the PE pipe shall be visible beyond the saddle to confirm that proper surface preparation occurred. Saddle faces that do not provided one quarter (¼) inch of area beyond the saddle are not acceptable.

Tapping tees shall be made to ASTM D3261 or D2683.

Mechanical strap-on saddles can only be used where there use on PE pipe is approved by the mechanical saddle Manufacturer. The body of the saddle shall be stainless steel, epoxy coated cast iron or brass. The gasket material and design must be acceptable for PE pipe. The outlet shall be threaded for one inch IPS unless a larger size is shown on the Project Plans. Mechanical strap-on saddles will be installed per the Manufacturer’s instructions.

2.3 PIPE AND FITTING IDENTIFICATION

A. The pipe shall be marked in accordance with the standards to which the pipe is manufactured.

B. Color identification by the use of stripes on pipe to identify pipe service shall be optional. If used, stripes or colored exterior pipe product shall be blue for potable water.

3.0 PRODUCTS FOR 4 INCH AND LARGER PIPE PER AWWA C906

3.1 PIPE

A. Polyethylene pipe shall be made from HDPE material having a material designation code of PE3608 or higher. The material shall meet the requirements of ASTM D 3350 and shall have a minimum cell classification of PE345464C.

10-15 (7)

B. The pipe and fittings shall meet the requirements of AWWA C906.

C. HDPE pipe shall be rated for use at a pressure class of one hundred

(100) psi (DR-17 minimum). The outside diameter of the pipe shall be based upon the IPS or DIPS sizing system.

3.2 FITTINGS

A. Butt Fusion Fittings - Fittings shall be made of HDPE material with a minimum material designation code of PE3608 and with a minimum Cell Classification as noted in 2B.01A. Butt Fusion Fittings shall meet the requirements of ASTM D3261. Molded and fabricated fittings shall have a pressure rating equal to the pipe unless otherwise specified on the Project Plans. All fittings shall meet the requirements of AWWA C906.

Markings for molded fittings shall comply with the requirements of ASTM D 3261.Fabricated fittings shall be marked in accordance with ASTM F 2206. Socket fittings shall meet ASTM D 2683.

B. Electrofusion Fittings - Fittings shall be made of HDPE material with a minimum material designation code of PE 3608 and with a minimum Cell Classification as noted in 2B.01A. Electrofusion Fittings shall have a manufacturing standard of ASTM F1055. Fittings shall have a pressure rating equal to the pipe unless otherwise specified on the Project Plans.

All electrofusion fittings shall be suitable for use as pressure conduits, and have nominal burst values of four times the Working Pressure Rating (WPR) of the fitting. Markings shall be according to ASTM F 1055.

C. Flanges and Mechanical Joint Adapters (MJ Adapters) – Flanges and

Mechanical Joint Adapters shall have a material designation code of PE3608 or higher and a minimum Cell Classification as noted in 2B.01A.

Flanged and Mechanical Joint Adapters can be made to ASTM D 3261 or if machined, must meet the requirements of ASTM F 2206.