Kittrell Specs 9106 - DOL099RB20666.pdf

TOC

12431/39363

TABLE OF CONTENTS

TABLE OF CONTENTS

Technical Specifications

DIVISION 2 – SITE WORK

02050 Demolition and Removal 02050: 1-3 02100 Sediment & Erosion Control / Environmental 02100: 1-3

Protection 02200 Clearing, Grading, and Excavation 02200: 1-5 02300 Seeding 02300: 1-4 02603 Plant Pipework and Appurtenances 02603: 1-15

DIVISION 3- CONCRETE

03100 Concrete Formwork 03100: 1-2 03200 Concrete Reinforcement 03200: 1-3 03300 Cast-in-Place Concrete 03300: 1-18

DIVISION 5 - METALS

05120 Structural Steel 05120: 1-7 05500 Metal Fabrications 05500: 1-5

DIVISION 7 – THERMAL AND MOISTURE PROTECTION

07920 Sealants and Caulkings 07920: 1-3

DIVISION 9 – FINISHES

09900 Painting 09900: 1-5

DIVISION 11 – EQUIPMENT

11310 Submersible Wastewater Pump 11310: 1-5 11361 Circular Clarifier 11361: 1-5 11395 Gravity Wastewater Filter 11395: 1-7 11398 Ultraviolet Disinfection Equipment 11398: 1-7

DIVISION 16 – ELECTRICAL

16010 Electrical General 16010: 1-4 16020 Packaged System Electrical Components 16020: 1-4 16111 Conduits 16111: 1-10 16120 Wires and Cable 16120: 1-7 16450 Electrical Grounding 11398: 1-5

02050-1

DEMOLITION AND REMOVAL

SECTION 02050

PART 1 – GENERAL

1.1 DESCRIPTION OF WORK

A. Work under this section includes furnishing labor, equipment and materials for demolition, removal and proper disposal of certain structures, piping, equipment, all stripping, trees, steps and existing asphalt and concrete surfaces, existing sidewalk and curb and gutter as indicated or specified. Do not begin demolition until authorization is received from the Owner, refer to paragraph "Title to Materials", hereinafter. Remove rubbish and debris daily, unless otherwise directed; do not allow accumulations. Store materials that cannot be removed daily in areas approved by the Owner. The demolition and removal of materials containing asbestos shall be in accordance with State and Federal regulations.

B. Structure demolition shall include removal of existing wooden, concrete and masonry structures, and cutting through or into existing reinforced concrete walls and masonry walls.

C. Pipe demolition shall consist of cutting, plugging, and removal of piping as required.

D. Pavement demolition shall consist of cutting and removing existing asphalt pavement, concrete pavement, and concrete curb and gutter.

E. Fence demolition shall consist of removing and replacing chain link fencing where necessary.

1.2 RELATED WORK IN OTHER SECTIONS

A. Sedimentation & Erosion Control/ Section 02100 Environmental Protection

B. Clearing, Grading and Excavation Section 02200 C. Seeding Section 02300

1.3 REQUIREMENTS

A. Dust Control: Take appropriate action to check the spread of dust to occupied portions of any nearby buildings and avoid the creation of a nuisance in the surrounding area. Do not use water if it results in hazardous or objectionable conditions, such as ice, flooding, or pollution. Comply with all dust regulations imposed by local air pollution agencies.

B. Protection: Protect existing work which is to remain in place, that is to be reused, or which is to remain the property of Owner by temporary covers, shoring, bracing and supports. Items which are to remain and which are damaged during performance of the

02050-2 work shall be repaired to their original condition or replaced. Do not overload structural elements. Provide new supports and reinforcement for existing construction weakened by demolition or removal work.

C. Facilities: Protect all electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas, and temporary services or connections for electrical and mechanical utilities.

Wastewater Treatment Plant must remain in operation during construction.

D. Explosives: Use of explosives will not be permitted.

E. Burning: Burning will not be permitted.

F. Regulations: Comply with federal, state, and local hauling and disposal regulations.

1.3 REQUIREMENTS

Submit proposed demolition and removal procedures to the Owner for approval before work is started. Procedures shall provide for coordination with other work in progress, a disconnection schedule of utility services, a detailed description of methods and equipment to be used for each operation of the sequence of operations.

PART 2 – PRODUCTS (n/a)

PART 3 – EXECUTION

3.1 EXISTING STRUCTURES AND FACILITIES TO BE REMOVED

A. Concrete and masonry structures which are in the way of new work shall be cut off to a point at least 3’-0” below finished grade level and backfilled and covered with unclassified excavation. Compaction shall be 95% of Standard Proctor at optimum moisture content. The Contractor shall install one 6-inch diameter hole per each square foot of base slab area for drainage. An 8-inch thick layer of stone shall be placed on top of the base slab prior to placement of unclassified excavation. Demolition debris may be buried within the excavated area, provided there are no voids which could cause settlement.

B. Existing concrete and masonry structures to be cut for installation of conduit and piping shall be neatly cut using core drills. After installation of conduit or pipe the annular space shall be filled with non-shrink grout.

C. Items such as concrete sidewalk, stairs, curb and gutter, chain link fencing and asphalt pavements shall be removed as necessary to complete the project as shown on the plans.

All concrete and asphalt items to be removed shall be saw cut with a neat clean line then removed. Fencing shall be removed and replaced to the nearest post where necessary.

02050-3

The Contractor shall take care as to not damage adjacent structures during removal. Any damage to adjacent facilities will be the Contractor's responsibility.

3.2 UTILITIES, PIPING AND EQUIPMENT TO BE REMOVED

A. Remove all existing utilities and related equipment uncovered by work and terminate in a manner conforming to the nationally recognized code covering the specific utility.

Equipment to be removed shall be removed with as little damage to the equipment as possible. Any anchor bolts or plates shall be removed by cutting and holes shall be grouted over flush with surface. Remove lights and stanchion and related equipment and deliver to a location in accordance with instruction of the Owner or his representative without additional cost.

B. Piping shown on the plans to be removed shall be disassembled where possible (and cut where required) and removed. All piping stub-outs indicated to remain shall be blind flanged, covered with a threaded cap or closed with a permanent mechanical plug, as appropriate.

3.3 DISPOSITION OF MATERIAL

A. Title to Materials - Except where indicated otherwise or specifically specified otherwise in other sections, all materials and equipment removed, and not reused, shall become the property of the Contractor and shall be removed from the property. Title to all materials resulting from demolition, and all materials and equipment to be removed, is vested in the Contractor upon approval by the demolition and removal procedures, and authorization by the Owner to begin demolition. The Owner will not be responsible for the condition or loss of, or damage to, such property after Notice to Proceed. Materials and equipment shall not be viewed by prospective purchasers or sold on the site.

B. Reuse of materials and equipment - Carefully remove and store materials and equipment to be reused or relocated to prevent damage, and reinstall as the work progresses.

C. Salvaged materials and equipment as specified by the Owner - Carefully remove materials that are to be removed by the Contractor and that are to remain the property of the Owner, and deliver to a storage site as directed within 15 miles of the work site.

3.4 CLEANUP

A. Remove and transport debris and rubbish in a manner that will prevent spillage on streets or adjacent areas. Cleanup any spillage from streets and adjacent areas that occur during transportation operations. The site shall have all debris removed and shall be graded to conform to the adjacent area in such a manner to provide proper drainage. The site shall be properly seeded and mulched after completion of demolition operations.

02100-1

SEDIMENT & EROSION CONTROL/ ENVIRONMENTAL PROTECTION

SECTION 02100

SEDIMENT & EROSION CONTROL / ENVIRONMENTAL PROTECTION

PART 1 – GENERAL

1.1 DESCRIPTION OF WORK PRACTICES

This section covers the practices necessary to minimize sedimentation and erosion and to provide environmental protection on the project or projects covered by these specifications, and the furnishing of materials, labor, and equipment for that purpose.

The Contractor shall comply with all Federal, State, and local water and air pollution laws. The Contractor shall keep himself informed of such regulations which affect the conduct of the work.

In the event of conflict between such regulations and the requirements of these specifications, the more restrictive requirements shall apply.

The Contractor shall take whatever measures are necessary to minimize soil erosion and siltation, Erosion and sedimentation control practices shall generally conform to the details shown in the Plans and to those outlined in the Erosion and Sediment Control Planning and Design Manual, latest edition, Division of Land Resources, North Carolina Department of Environment and Natural Resources.

The Contractor shall take every precaution throughout the life of the project to prevent the pollution of rivers, streams, and water impoundments. Pollutants such as chemicals, fuels, lubricants, bitumens, sewage, and other harmful waste shall not be discharged into or alongside rivers, streams, or impoundments, or into natural or manmade channels leading thereto.

1.2 RELATED WORK IN OTHER SECTIONS:

A. Clearing, Grading, and Excavation: Section 02200 B. Seeding: Section 02300

1.3 QUALITY ASSURANCE

Erosion and sedimentation control shall conform to the requirements of the North Carolina Sedimentation Pollution Control Act of 1973, latest revision.

PART 2 – PRODUCTS

2.1 SEEDING

Seeding and seeding materials shall conform to the requirements of Section 02300.

2.2 SILT FENCE

Silt fences shall conform to the details shown on plans.

02100-2

SEDIMENT & EROSION CONTROL/ ENVIRONMENTAL PROTECTION

PART 3 – EXECUTION

3.1 SOIL EROSION CONTROL MEASURES

The Contractor shall employ such standard erosion control practices as are necessary to prevent soil materials from migrating from the site. Should any erosion or siltation occur, the Contractor shall immediately remove and properly dispose of any material washed into rivers, streams, lakes, reservoirs, ditches, storm sewers, or other property. The Contractor shall be liable for any damage to private or public property resulting from insufficient erosion and siltation control measures, including any fines levied by local or state agencies.

The Contractor shall install temporary and permanent erosion control measures as shown in the Plans or as directed by the Owner. Temporary sediment control devices shall be installed to the extent possible prior to initiation of grading and excavation. Temporary erosion control measures shall include, but not be limited to, the use of temporary berms, dikes, drainage ditches, silt basins, silt ditches, slope drains, structures, stone check dams, vegetation, mulches, mats, netting, gravel, or other necessary methods. Temporary erosion control may include work outside the construction limits.

The Owner may limit the area over which excavation, embankment, and grading operations are performed whenever the Contractor's operations are not effectively minimizing erosion and/or siltation. In addition, should the Contractor fail to perform the necessary measures to control erosion, siltation, and pollution within 24 hours after receipt of notice from the Owner or local or state agencies, the Owner may suspend the work and may proceed to have such measures performed by others at the Contractor's expense. In such event, the Contractor shall not be eligible for any extension of contract time therefor.

3.2 HANDLING OF EXCAVATED MATERIALS

Construction operations in rivers, streams, ditches, and water impoundments shall be restricted to those areas which must be entered for the performance of work shown in the Plans. Excavated materials shall not be deposited in rivers, streams, ditches, or impoundments except that temporary earth dikes may be used when approved by the Owner, but such dikes shall be completely removed in such manner as to prevent siltation. Frequent fording of flowing streams with equipment will not be permitted. Temporary bridges or other structures shall be used wherever frequent stream crossings are necessary.

3.3 STABILIZATION AND FINAL COVER MATERIALS

All disturbed, non-paved areas shall be seeded and fertilized, mulched, and tacked as soon as practical after cleanup in accordance with the details shown in the Plans and with other applicable sections of these specifications. In no case shall a total area of one acre or more be left unstabilized for a period greater than thirty (30) days when construction has been completed in the area.

02100-3

SEDIMENT & EROSION CONTROL/ ENVIRONMENTAL PROTECTION

3.4 MAINTENANCE OF CONTROL MEASURES

Control devices shall be maintained at a minimum of 50% of their original capacity and may not be removed until the areas they serve have been stabilized. When authorized by the Owner, the Contractor shall remove the erosion control measures and shall make appropriate repairs, if necessary, to maintain the site in a stabilized condition.

02200-1

CLEARING, GRADING AND EXCAVATION

SECTION 02200

CLEARING, GRADING, AND EXCAVATION

PART 1 – GENERAL

1.1 DESCRIPTION OF WORK

Work under this section applies to the clearing and earthwork activities necessary to construct items covered under other sections of these specifications, including the removal and satisfactory disposal of all materials excavated within the limits of work indicated in the Plans or directed by the Owner. These activities include such excavation as is necessary for the formation, compaction, and shaping of all embankments, fills, and roadways, drives, and vehicular parking and loading areas, and for shaping of drainage ways, to conform to the typical cross sections and to the lines and grades as shown in the Plans.

This work shall also include the removal and proper disposal of all unsuitable subgrade material and replacement with satisfactory materials, and stripping and removal of other items within the limits of construction, such as trees and shrubs, fencing, walls, steps, sidewalk, drainage pipes, curb and gutter, and existing asphalt and concrete surfaces, and adjustment of utility structures and castings, as required.

1.2 RELATED WORK IN OTHER SECTIONS:

A. Sediment & Erosion Control / Environmental Protection: Section 02100 B. Seeding: Section 02300

1.3 QUALITY ASSURANCE:

Prior to beginning of any clearing or demolition activities, the Contractor shall confirm the limits of work and the items to be removed with the Owner. The Contractor shall then conduct these operations in strict accordance with the agreed limits and procedures.

Compaction shall be completed in accordance with the standards of ASTM D-698 as amended.

The Contractor shall retain the services of an independent testing laboratory to perform all materials testing required to confirm performance under these specifications. In areas of fill and backfill, field density tests shall be performed in sufficient numbers to insure that the specified density is obtained for each lift. The Contractor shall rework, or remove and replace, soil materials in the areas in which testing reveals compaction below the specified density until the applicable specified compaction can be confirmed by field-testing. The Contractor shall be liable for all costs of retesting, as well as standard density tests (Proctor curves) for borrow material, if applicable.

1.4 CLASSIFICATION OF EXCAVATION:

Common Excavation shall include all materials excavated within the designated limits not otherwise classified as Solid Rock Excavation, Undercut Excavation, or Borrow Excavation, but including removal and disposal of vegetation, topsoil, ornamental work, pipes, concrete slabs, asphalt, pavement, debris, and other surplus materials not specifically detailed in the Bid.

02200-2

CLEARING, GRADING AND EXCAVATION

Undercut Excavation shall consist of the excavation and disposal of unsuitable materials below the subgrade and replacement with suitable compacted materials.

Solid Rock Excavation shall include all hard rock found in place and all rock, hard slate, hard sandstone, and solid rock of other definition found in place which cannot be removed by suitable heavy-duty ripping and excavating equipment, in addition to fragments of rock greater in volume than the capacity of the excavating machinery to remove and which, in the opinion of the Owner, requires blasting.

Borrow Excavation shall include soil materials required to satisfactorily execute the work in accordance with the Plans and these specifications, not otherwise available within the limits of work shown in the Plans, and excavated from areas other than those designated, as authorized or directed by the Owner.

1.5 GEOTECHNICAL DATA:

A. A subsurface (geo-technical) investigation has not been performed for the treatment plant site.

PART 2 - PRODUCTS

2.1 BORROW MATERIAL

Borrow material shall consist of a sandy-clay, or clayey-sand soil which shall be free from trash, debris, stone, vegetable matter, or other organic or waste materials. It shall have an optimum, compacted dry unit weight of 120 pcf or greater. The source of borrow material shall be approved by the Owner. The Contractor shall submit Proctor density curves for each source of borrow material for approval.

2.2 CRUSHED STONE

Crushed stone for foundation preparation or for use as backfill in event of over-excavation, as may be directed by the Owner, shall be uniform, clean material conforming to North Carolina Department of Transportation specifications #57 or #67.

2.3 CONCRETE

Concrete for use as backfill in event of over- excavation, as may be directed by the Owner, shall have a compressive strength of 2,000 psi or greater.

2.4 TOPSOIL

Topsoil shall consist of natural loamy, organic soil suitable as seedbed for lawns or roadway shoulders. Topsoil shall be removed from the work sites and may be stockpiled for subsequent use.

PART 3 - EXECUTION

3.1 CLEARING, GRUBBING, AND STRIPPING:

02200-3

CLEARING, GRADING AND EXCAVATION

The Contractor shall conduct clearing, grubbing, and stripping operations with full consideration of the property rights of the Owner and adjacent property owners and of the convenience of the general public, and shall strive to minimize inconvenience to all parties.

Where indicated or directed, the Contractor shall clear the construction areas of trees and brush and provide for grubbing of stumps and roots. Only those trees that seriously interfere with construction shall be cut, and care shall be exercised to protect remaining trees and adjacent property. All brush, stumps, laps, roots, and logs shall be removed from the work site. No open burning shall be allowed at the work site. Minor structures, pipes, and other debris where indicated or authorized by the Owner shall be removed.

All materials removed from the site shall be disposed of in a legal manner. All putresible waste material shall be properly disposed in an approved sanitary landfill. Upon request of the Owner, the Contractor shall provide documentation for his disposal methods.

Where structures are to be built on fills, the entire area on which the structural fill will bear shall be stripped to such depth as to remove the organic layer, including turf, topsoil, roots, and other materials not suitable for subgrade.

3.2 GENERAL GRADING REQUIREMENTS

Excavation and grading shall include all earthwork for site development, roadway, drives, and vehicular parking and loading areas; excavation and backfill for structures; and embankment construction. Excavation and grading shall also include undercut excavation and placement of borrow materials, disposal of unsuitable and excess materials, procurement and placement of topsoil, final grading and dressing off, and cleanup. These activities shall also cover blasting, if required, and measures required for stabilization of excavation work, including shoring, sheathing, bracing, dewatering, cofferdam work, and other protective measures.

Site grading shall conform to the grades indicated by the finish grades and cross-sections in the Plans. Where topsoil, pavement, or other items are shown, the rough grade shall be established at such depth below finish grade as is necessary to accommodate these items.

The Contractor shall be responsible for dewatering, if required for site grading or structural excavation. The Contractor shall provide and maintain appropriate measures for dewatering, including ditching, drains, pumping, bailing, and well pointing.

3.3 SUBGRADE FOR BUILDINGS OR ROADWAY

All exposed soils at subgrade elevation under structures shall be proofrolled with a 15 to 20 ton pneumatic roller or equivalent weighted equipment. Should soft or unsuitable material be indicated by the proof rolling operations, the Contractor shall remove such material and replace it with an acceptable compacted borrow material, stone, or concrete, as directed by the Owner.

3.4 FILLS AND EMBANKMENTS

For areas within the 1:1 envelope of structural loading (including vehicular loading), fills and embankments shall be constructed of material that is free from grass, roots, and other organic materials, or rock unless specifically approved by the Owner. In areas outside the 1:1 envelope, the Contractor may place properly compacted stippings and excess topsoil materials when authorized by the Owner.

02200-4

CLEARING, GRADING AND EXCAVATION

Where natural slopes are steeper than 3:1, the Contractor shall cut horizontal benches in the natural soil to receive fill material. Where natural slopes are shallower than 3:1, the Contractor shall scarify the subgrade prior to placing fill material.

Fills shall be formed of acceptable material placed in successive layers of not over eight-inch loose thickness for the full width of section, where practical. Fill materials shall be spread evenly and compacted to obtain uniform density. Fills under structures shall be compacted to ninety-eight percent (98%) of the Standard Proctor Maximum Dry Density as defined by ASTM D-698.

Fills under roadways, drives, parking areas, walks, and future paved surfaces shall be compacted to 95% of Standard Proctor Maximum Dry Density. Fills in other areas shall be compacted to at least 90% of Standard Proctor Maximum Dry Density. Material that is too dry for proper compaction shall be moistened, turned, and harrowed, and then properly compacted. Material too wet for proper compaction shall be dried by aeration, disking, harrowing, or other methods to a moisture content which will allow compaction to the specified density. Borrow material, as needed, will be taken from the work site, or if authorized by the Owner, from other acceptable source.

Where rock is excavated along with other material, it shall be incorporated in fill sections which are not to support pavement or structural loading. Rock shall be evenly distributed. Rock fragments larger than 4" in greatest dimension will not be allowed in the top 12" of fills or slopes.

Voids between rock material are to be well filled with good material and all rock shall be covered with at least 12" of earth.

3.5 UNDERCUT EXCAVATION

Should unsuitable materials be encountered within the grading limits indicated in the Plans, the Contractor shall remove these materials as directed by the Owner and backfill to the indicated subgrade elevation with suitable, properly compacted material. Undercut material may be used elsewhere on the project if the Owner determines that it is suitable. If it cannot be used, the Contractor shall provide for removal and disposal off the site.

3.6 EXCAVATION FOR FOUNDATIONS

Foundation excavation shall be made at the location and to the elevation shown in the Plans. The limits of the excavation shall be made sufficiently large to allow for placement of forms for footings and walls and for pointing masonry, if applicable. Excavations shall be kept free of water. Where necessary, the sides of excavation shall be shored and sheathed, or cofferdams built, as required for protection of the work and laborers.

The base of the excavation shall be level and in firm, solid material. Should soft or unsuitable material be encountered at subgrade elevation, such material shall be removed and replaced with acceptable compacted borrow material, stone, or concrete, at the direction of the Owner. Over-excavation below grade shall be replaced at the option of the Owner with good material, stone, or concrete without additional compensation therefor.

3.7 BLASTING

Rock excavation required for structural foundations shall be accomplished by use of heavy ripping equipment, rock drills, or pneumatic jackhammers, if possible. Where blasting is required, the Contractor shall ensure that such operations are performed under the supervision of a capable person, well experienced in demolition operations and procedures needed to protect persons and property from injury. No blasting for rock excavation will be allowed except by

02200-5

CLEARING, GRADING AND EXCAVATION

permission of the Owner if there are existing adjacent structures or pipelines. In such event, the Contractor shall provide prior, site-specific documentation to the Owner that vibrations from blasting will not cause damage to adjacent structures and piping. The Contractor shall also provide for monitoring and documentation of vibrations during blasting operations. The Contractor shall bear responsibility for all damages resulting from his blasting operations.

3.8 BACKFILL

Backfill around structures and other facilities shall be accomplished as soon as is practical in conformance with the following provisions.

Backfill shall consist of clean earth, free from trash, demolition materials, grass, roots, and other organic materials, large rocks, and other unacceptable material. It shall be placed in eight-inch layers and thoroughly compacted by mechanical tamps to 90% of the Standard Proctor Maximum Dry Density as defined by ASTM D-698 as amended, with any subsequent settlement being refilled. Care shall be taken to protect piping or other utilities during backfill operations.

Excessively wet, soupy or mucky material shall be removed from the area around structures prior to backfill being placed, and no such material shall be used for backfill purposes.

Backfill around non-water holding structures shall be completed upon completion of the structure above finish grade, and after all piping has been properly installed and tested. Unless approved by the Owner, structures that are to contain liquids shall not be backfilled until successfully tested for leakage. It shall be the responsibility of the Contractor to protect all structures from damage due to floatation prior to backfill being placed.

3.9 FINE GRADING, PLACEMENT OF TOPSOIL, AND CLEANUP:

Upon completion of excavation, grading, and backfill, the entire work area shall be fine graded and dressed off to the indicated grades. At least 4" of topsoil shall be placed on all disturbed non-paved areas with the final level of topsoil conforming to the design finished elevations. Topsoil shall be obtained from off-site sources if required. Topsoil shall be free of debris, sticks, excessive amounts of weeds, and other deleterious substances.

Upon completion of the fine grading and placement of topsoil, the entire site shall be cleaned up and dressed off, including the removal of rocks that may interfere with mowing and maintenance of right-of-way, and all excess material and debris shall be disposed of to the Owner's and Owner's satisfaction. All areas to be seeded shall be "broom dragged" and/or hand-raked.

02300-1

SEEDING

SECTION 02300

SEEDING

PART 1 – GENERAL

1.1 SCOPE OF WORK

The Contractor shall provide seedbed preparation, liming, fertilizing, seeding and mulching of all newly graded finish earth surfaces, unless otherwise indicated, and all areas inside or outside the limits of construction that are disturbed by the Contractor’s operations.

The Contractor shall perform seeding and mulching operations immediately upon completion of grading. The Contractor shall adapt his operations to variations in weather or soil conditions as necessary for the establishment and growth of the grasses or legumes. In all operations, the Contractor shall take care to preserve or restore the required line, grade, and cross-section of the area.

PART 2 – PRODUCTS

2.1 SEED

Seed shall be certified by and comply with the rules and regulations of the NC Department of Agriculture. Only high quality seed shall be used. Wet, moldy, or otherwise damaged seed or seed containing an excess of noxious weeds will not be acceptable. Each variety of seed shall be furnished and delivered in separate bags. If seed is to be mixed before sowing, it shall be mixed by methods which will mix the seed thoroughly and uniformly without causing damage to the seed. During handling and storage, seed shall be protected from damage from any cause.

2.2 FERTILIZER

Fertilizer shall comply with the rules and regulations of the NC Department of Agriculture. It shall be manufactured from cured stock and have an analysis of 5-10-10. During handling and storage, the fertilizer shall be protected against hardening, caking, or loss of plant food values.

Any hardened or caked fertilizer shall be pulverized to its original condition before being used.

2.3 LIME

Lime shall comply with the rules and regulations of the NC Department of Agriculture. It shall be agricultural grade ground dolomitic limestone containing not less than 85% of combined calcium and magnesium carbonates. It shall be so graded that 100% will pass a No. 10 sieve and 40% will pass a No. 100 sieve. During handling and storage, lime shall be protected against hardening and caking. Any hardened or caked lime shall be pulverized to its original condition before being used.

2.4 MULCH

Mulch shall consist of clean grain straw reasonably free from mature seedbearing stalks, roots, or bulblets of Johnson Grass, Nutgrass, Sanbur, Wild Garlic, Wild Onion, Bermuda Grass, Crotalaria, Witchweed, and restricted noxious weeds as defined by the NC Department of Agriculture at the time of use. Mulch that is matted or lumpy shall be loosened and separated before being used.

02300-2

SEEDING

2.6 ASPHALT ADHESIVE

Emulsified asphalt shall conform to ASTM D 977, Grade RS-1.

PART 3 – EXECUTION

3.1 PREPARATION

3.1.1 Seed Bed Preparation

The Seed bed shall be properly prepared and true to line and grade with lime and fertilizer worked into the soil 4" to 6" deep. All weeds and other unacceptable growth shall be cut and disposed of properly. Uneven and rough areas shall be smoothed to provide a uniform surface.

The soil shall be loosened to a minimum depth of 5" and all clods shall be broken up. The top 2" or 3" of soil shall be worked into an acceptable seedbed by the use of approved methods. On cut slopes greater the 2:1, the Owner may permit the depth of preparation to be reduced, but in all cases the slope surface shall be scarified, grooved, trenched, or punctured so as to provide places in which the seeding materials can lodge.

3.1.2 Lime and Fertilizer

Lime and fertilizer shall be distributed uniformly over the prepared seedbed at the specified rates and then harrowed, raked, or otherwise thoroughly worked or mixed into seedbed.

3.2 SEEDING

3.2.1 Seeding Conditions

Immediately before seeding, restore soil to the proper grade. Do not seed when the ground is muddy or in any unsatisfactory condition for seeding.

3.2.2 Seeding Methods

Seed shall be distributed uniformly over the prepared seedbed at the specified rate and immediately harrowed, dragged, raked, or otherwise worked so as to cover the seed with a layer of soil. Immediately after seed has been properly covered, the seedbed shall be compacted by means approved by the Owner.

3.3 MULCH

1.3.1 Application

Within 24 hours after the completion of seeding, all areas shall be mulched. Mulch shall be spread uniformly by hand or by approved mechanical spreaders which will provide an acceptable application. An acceptable application will be that which will allow some sunlight to penetrate and air to circulate but also partially shade the ground, reduce erosion, and conserve soil moisture.

3.3.2 Tack Materials and Methods

Mulch shall be held in place by applying a sufficient amount of asphalt emulsion or other approved binding material. The rate and method of application shall meet the approval of the Owner. When the binding material is not applied directly with the mulch, it shall be applied immediately following the mulch application. During the application of the binding material, adequate precautions shall be taken to prevent damage to traffic, structures, traffic control devices, and other appurtenances. When any damage does occur, the Contractor shall repair it, including any necessary cleaning. The Contractor shall take precautions to prevent mulch from

02300-3

SEEDING

entering drainage structures and shall promptly remove any blockages which may occur.

3.4 STANDARD APPLICATIONS

Unless specified otherwise in the SPECIAL CONDITIONS, the type of seed and the rates for seed, fertilizer, lime and mulch shall be as listed below:

***Temporary - Reseed according to optimum season for desired permanent vegetation,

3.4.1 Shoulders, Side Ditches, Slopes (Max. 3:1)

DATE: TYPE: PLANTING RATES:

Aug 15 - Nov 1 Tall Fescue 300 lbs./acre

Nov 1 - Mar 1 Tall Fescue and 300 lbs./acre Abruzzi Rye 25 lbs./acre

Mar 1 - Apr 15 Tall Fescue 300 lbs./acre

Apr 15 - Jun 30 Hulled Common Bermudagrass 25 lbs./acre

Jul 1 - Aug 15 Tall Fescue and 120 lbs./acre ***Browntop Millet 35 lbs./acre

*** or Sorghum - Sudan Hybrids 30 lbs./acre

3.4.2 Slopes (3:1 to 2:1)

DATE: TYPE: PLANTING RATES:

Mar 1 - Jun 1 Sericea Lespedeza (scarified) and 50 lbs./acre (Mar 1 - Apr 15) Add Tall Fescue 120 lbs./acre

(Mar 1 - Jun 30) Or Add Weeping Lovegrass 10 lbs./acre

(Mar 1 - Jun 30) Or Add Hulled Common Bermudagrass 25 lbs./acre

Jun 1 - Sep 1 *** Tall Fescue and 120 lbs./acre ***Browntop Millet 35 lbs./acre

*** or Sorghum - Sudan Hybrids 30 lbs./acre

Sep 1 - Mar 1 Sericea Lespedza (unhulled - unscarified) 70 lbs./acre and Tall Fescue 120 lbs./acre

(Nov 1 - Mar 1) Add Abruzzi Rye 25 lbs./acre

3.5 MAINTENANCE

Inspect all seeded areas and make necessary repairs or reseeding within the planting season, if possible. If stand should be over 60% damaged, reestablish grass cover following original lime, fertilizer and seeding rates.

The Contractor shall maintain seeded areas in a satisfactory condition until final acceptance of the project. For temporary cover, the Contractor shall provide for mowing before grass grows over 12" in height (otherwise fescue may be shaded out). Areas of damage or failure due to any cause

02300-4

SEEDING

shall be corrected by being repaired or by being completely redone as may be directed by the Owner. Damage or failure resulting from poor seed, the Contractor's operation, or his failure to provide erosion control shall be repaired or replaced at the Contractor's expense.

The Contractor shall maintain adequate drainage on the project at all times. In the event water pockets are formed, they shall be drained by the Contractor, and all wet and unstable material shall be removed and disposed of and the area backfilled and compacted with suitable material.

Such remedial work caused by the failure of the Contractor to keep the area adequately drained shall be performed at his expense.

02603-1

PLANT PIPEWORK AND APPURTENANCES

SECTION 02603

PART 1 – SCOPE OF WORK

1.1 DESCRIPTION OF WORK

Work covered under this section of these specifications consists of the construction of yard piping; structure piping; equipment, and chemical piping; and other miscellaneous pipe work;

including valves, fittings, and appurtenances on the site. The scope of work shall be as detailed on the plans and itemized in the bid and shall include all material, equipment, labor, and other items required for proper and acceptable completion.

1.2 LOCATIONS

Pipe work shall be installed at the locations shown on the plans and to the position, alignment and grade shown thereon.

1.3 RELATED WORK IN OTHER SECTIONS

• Clearing, Grading, and Excavation: Section 02200

• Control of Erosion, Siltation, and Pollution: Section 02476

1.4 QUALITY ASSURANCE

Standards:

American Association of State Highway Transportation Officials

• AASHTO T99

American National Standards Institute

• ANSI A21.10 gray iron and ductile cast iron pipe

• ANSI A21.50 and A21.51 ductile cast iron pipe

American Society for Testing and Materials

• ASTM A-24 stainless steel pipe

• ASTM A-53 pipe, steel, black and hot dipped Zinc coated, welded, and seamless

• ASTM A-120 pipe, steel black and hot dipped Zinc coated, welded and seamless for ordinary use

• ASTM A-339 ductile iron fittings

• ASTM B-42 copper pipe

• ASTM C-14 concrete sewer pipe (18" and smaller)

• ASTM C-33 crushed stone

• ASTM C-76 concrete sewer pipe (larger than 18")

• ASTM D-24 PVC fittings

• ASTM D-1705 PVC pipe

02603-2

• ASTM D-698 standard proctor compaction tests

• ASTM D-1869 pipe testing

• ASTM D-2321 pipe installation

• ASTM D-2412 pipe testing

• ASTM D-2444 pipe testing

• ASTM D-2751 ABS or PVC composite pipe

• ASTM D-2751 ABS sewer service line

• ASTM D-3034 PVC gravity sewer pipes

• ASTM C-55 concrete brick

• ASTM C-91 masonry cement

• ASTM C-443 reinforced concrete pipe joints

• ASTM C-478 precast catch basins and manholes

• ASTM C-252 encasement pipe

• ASTM C-32 manhole brick

• ASTM C-139 concrete manhole block

• ASTM C-230 grout and mortar

• ASTM C-443 pipe joint material and fittings

• ASTM C-594 flexible couplings and fittings

American Water Works Association

• C-202 gate valves - 3" through 48" for water and other liquids

• C-301 gaskets

• C-504 rubber seated butterfly valves

• M-11 steel pipe design and installation manual

1.5 SUBMITTALS

Submit manufacturers literature and certification on the following (six copies required):

Pipe Pipe specialties Valves Pipe hangers and accessories Fittings

PART 2 – PRODUCTS

2.1 MATERIAL

A. All material and appurtenances shall meet the following minimum standard requirements therefore. It shall be each manufacturer's responsibility to check the proposed installation and to furnish material that will be fully capable of performing its intended function.

B. Pipe shall be of the type, size, class, and diameter as hereinafter specified and called for by the plans. General testing considerations shall comply with the following:

1. Trench width for buried pipe design shall be considered as the outside diameter of the pipe plus 2', at the bottom and up to 1' above the top of the pipe. Buried pipe shall be designed for laying condition C (See Plans) to withstand all internal pressures and external loads with depths of cover as shown on the plans.

02603-3

2. Where cast iron pipe and fittings are shown or called for on the plans, the Contractor may have the option of providing either gray or ductile cast iron pipe and fittings. Where specifically noted on the plans, ductile iron pipe only shall be furnished.

3. Unless otherwise noted, design pressure shall consist of 150 psi working pressure plus 100-psi surge allowance for all pressure piping.

4. Pipe fittings shall be of the size, configuration and type called for by the Plans.

All fittings shall be of at least the same class as the pipe with which they are used.

5. Valves shall be of the type, size and class required by the plans. Flanges shall be 125 lb. ANSI Standard, faced and drilled in accordance with ANSI B16.1. All valves shall be furnished with operating devices as specified or shown. All valves shall be of at least the same pressure class of the pipe with which they are used. A valve box shall be provided for each underground gate, butterfly, or plug valve, except where shown differently on the plans.

2.2 PIPE AND FITTINGS

A. Ductile Cast Iron Pipe: Ductile cast iron pipe shall be as hereinbefore specified with a wall thickness of minimum Class 50 except all piping for non-buried installation shall be furnished without an exterior bituminous coating to facilitate painting, and all ductile cast iron pipe installed under structures or through structure walls shall be minimum thickness Class 50. Ductile cast iron pipe shall be furnished with interior cement lining, except pipe used for air service shall be furnished with no interior lining.

B. Gray Cast Iron Pipe: Not in this Contract

C. Steel Pipe: Not in this Contract

D. Polyvinyl Chloride Pressure Pipe: Not in this Contract

E. Polyvinyl Chloride Drainage Pipe: Not in this Contract.

F. Copper Pipe: Not in this Contract

G. Copper Tubing: Not in this Contract

H. Stainless Steel Pipe: Not in this Contract

I. Vitrified Clay Pipe: Not in Contract.

J. Reinforced Concrete Storm Drain Pipe: Not in this Contract

K. Reinforced Concrete Sewer Pipe: Not in Contract.

L. ABS truss, PVC truss, and PVC sewer pipe: Not in this Contract

02603-4

M. Ductile Cast Iron Fittings Ductile cast iron fittings shall conform to the requirements of ANSI Specification A21.10 with mechanical joint or flanged ends as required, except that material and manufacture shall conform to ASTM Specification A-339, Grade 80-60-03 and compact fittings shall conform to ANSI/AWWA C153/A21.53. All fittings for buried service shall be furnished with an exterior bituminous coating, as required for pipe. Fittings for non-buried, exposed service shall be furnished without an exterior bituminous coating to facilitate painting. Mechanical joint ends shall conform to ANSI Specification A21.11. Flanged ends shall be 125 lb. standard, faced and drilled in accordance with ANSI B 16.1. All fittings used for air service shall be furnished with no interior coating.

N. Gray Cast Iron Fittings: Not in Contract.

O. Steel Fittings: Not in this Contract

P. Polyvinyl Chloride Pressure Fittings: Not in this Contract

Q. Polyvinyl Chloride Drainage Fittings: Not in this Contract

R. Copper Fittings: Not in this Contract

S. Stainless Steel Fittings: Not in this Contract.

T. Joint Material:

1. Gaskets for pipe and fittings shall be continuous rings of rubber material compounded to resist deterioration and of a texture to assure a permanent and watertight seal. They shall have a smooth surface, free from pitting, blisters, porosity or any other defects. Gaskets shall conform to the requirements of AWWA Specification C-301 and Federal Specification WW-P-42 lb. Gasket material used for air piping shall be suitable for 250ºF operating temperature.

2. Gasket lubricant shall be a potable hydrogenated vegetable oil, insoluble in cold water, non-toxic, shall not support the growth of bacteria, and shall not impart taste nor odor to the water. It shall not contain detergents, soaps, organic solvents or other deleterious ingredients and shall have no deteriorating effects on the gaskets. The lubricant shall be semi-opaque, easily applicable, readily adherent to the inside of the bell and shall remain in the usable state throughout the range of temperature in which pipe is normally installed. Lubricant shall be delivered to the job site in unopened containers bearing the manufacturer's name and trade name or trademark.

3. Pipe dope shall be approved by the Owner.

4. Joint material for concrete pipe shall be the preformed plastic, rope type as manufactured by Ram-Nek, or equal, and which meets or exceeds all requirements of Federal Specification SS-S-00210 "Sealing Compound, Preformed Plastic for Pipe Joints, Type I, Rope Form."

02603-5

U. Insulation: Not in this Contract

2.3 CATCH BASINS, MANHOLE AND JUNCTION BOX MATERIALS (Not in this Contract)

2.4 CRUSHED STONE

Crushed stone for pipe bedding shall conform to ASTM C33. Size No. 67, with a size range of ¼" to 1".

2.5 VALES, GATES, OPERATORS, AND ACCESSORIES

A. Plug Valves:

1. Plug valves shall be of the non-lubricated, eccentric type with resilient faced plugs, with flanged ends for installation within structures and mechanical joint ends for buried service. Port areas shall be at least 80% of full pipe area for pipes 6" to 16" in diameter and 70% of full pipe area for valves larger than 16" diameter. Valves smaller than 6" in diameter shall have 100% full pipe area.

Bodies shall be semi-steel, gray cast iron, or ductile iron. Seats in 3" and larger valves shall have a welded in overlay of not less than 90% pure nickel on all surfaces containing the plug face. Valves shall have stainless steel permanently lubricated upper and lower plug stem bushings. All 4" and larger valves shall be of the bolted bonnet design. All nuts, bolts, springs, and washers shall be cadmium plated.

2. Plug valves 4" and smaller for non-buried service shall be equipped with (true) manual gear type operators with position indicators. Plug valves 6" and larger for non-buried service and all sizes for buried services shall be equipped with manual gear actuators. All gearing shall be enclosed, suitable for running in oil, and the actuator shall be submersible with seals provided on all shafts to prevent entry of water into actuator. All shaft bearing shall be furnished with permanently lubricated bronze bearing bushings. Actuators of nonburied service shall clearly indicate valve position and an adjustable stop shall be provided to set closing torque. Valve packing adjustment shall be accessible without disassembly of the actuator. Valves for non-buried services shall be furnished with a hand wheel, except valves mounted inaccessible high shall be provided with chain operators. Plug valves for buried service shall have gear operators and shall be provided with nut operator and extension stem of suitable length.

3. Valves and actuators shall be as manufactured by DuZurik, Keystone, Kennedy, or equal.

B. Gate Valves: Not in this Contract

C. Globe Valves: Not in this Contract

D. Ball Valves: Not in this Contract

E. Butterfly Valves for Air Service: Not in this Contract

02603-6

F. Needle Valves: Not in this Contract

G. Check Valves for Water & Sewage Service; Larger than 2": Standard check valves shall be iron body, bronze, mounted, full opening spring loaded, 125 lb. ANSI Standard flanged, and suitable for at least 150 psi pressure. Valves 8" and larger shall have two ½" threaded taps on the side upstream and downstream from the clapper. A ½" galvanized nipple and ½" bronze gate valve shall be installed in each tap.

H. Check Valves for Water & Sewage Service 2" and Smaller: Check valves 2" and smaller for water and sewage service shall be all bronze, swing check type with threaded connections, rated 125 psi.

I. Ball Check Valves: Not in this Contract

J. Check Valves for Air Service: Check valves for air service shall be the wafer type, spring loaded, suitable for bolting between two 125 lb. ANSI standard template flanges.

Bodies shall be cast iron or semi-steel; seat, bronze, or stainless and spring, stainless steel. Either sliding disc or swing type is acceptable. Valves shall be rated 100 psi and 250º F and shall be manufactured by Daniel Industries, Val-matic Valve and Manufacturing Company, Techno Corporation, or equal.

K. Air Release Valves:

1. Air release valves for sewage service shall be the long stem and body type designed to keep the valve operating mechanism as free from contact with the sewage as possible. Valves shall have 2" threaded inlet, with 1" blow off connection with 1" blow off valve (gate valve), ½" back flushing attachments with ½" outlet. Outlet and back flushing connections shall be quick couplings.

Valve shall have a minimum of 5/16" diameter orifice.

2. Valve body shall be cast iron; mechanism and seat, bronze; lever pins, stainless steel; and float, stainless steel. Valves shall be suitable for 100 psi working pressure. Valves shall be as manufactured by the Multiplex Mfg. Company, the Valve and Primer Company, Val-Matic Mfg. Corp., or equal.

3. Air release valves for water service shall be rated 150 psi, shall have threaded connections, and shall be Crispin pressure air valves as manufactured by Multiplex Manufacturing Company, APCO Valves, No. 200 as manufactured by the Valve and Primer Corporation, or equal.

L. Pressure Relief Valves: Pressure on safety relief valves for air service shall be the spring manually adjustable angle type with 125 lb. ANSI standard template flange valves shall be suitable for 150 psi and 250ºF. Bodies shall be cast iron on steel; trim shall be bronze or stainless steel; and springs carbon steel. Valves shall be factory set relieve at 7.5 psig, and shall be adjustable to relieve over a range of 5 to 8 psig within an accuracy of +0.25 psig.

02603-7

M. Circular Chart Recorder: The Contractor shall supply and install a dual pen circular chart recorder as indicated on the drawings. The circular chart recorder shall be an Omega model no. CT7000 or approved equal.

N. Slide Gates: Not in this Contract

O. Stop Gates: Not in this Contract

P. Sluice Gates: Not in this Contract

Q. Telescoping Valve:

1. The valve shall be the size and travel length indicated on the drawings and consist essentially of a fabricated non-rising type steel or cast iron floor stand incorporating a valve lifting stem and a travel indicating device calibrated in ½" increments, geared down so that the full length of travel registers on a 2' scale, hand wheel with handle grip for rapid adjustment, stainless steel tube, and tube guide collar with Neoprene gasket. The sliding valve tube shall be stainless steel tubing with diameter arranged to slide inside of a cast iron receiving pipe as indicated on the pipe drawings. The valve tube shall have two V-notched weirs located at 180º to accurately control the rate of sludge withdrawal.

2. The telescoping valves shall be manually operated by means of a cast iron hand wheels with…