EXHIBIT_A_-_SCOPE_OF_WORK.pdf

Seminole County Solid Waste Management Facility Dry Hydrant System 01010 - 1 January 2025

SECTION 01010

SUMMARY OF WORK

PART 1 – GENERAL

1.01 LOCATION OF WORK

A. Work included in this Contract will be done at the Seminole County Solid Waste Management Facility (Osceola Road Landfill) at 1934 E Osceola Rd, Geneva, FL 32732. The Landfill is owned and operated by Seminole County.

1.02 DESCRIPTION OF WORK

A. The overall project involves the construction of a dry hydrant fire system. The scope of Work described herein is for the construction these facilities facilities. The construction will consist of the following:

1. Coordination with Landfill Operations for access and overall site work.

2. Retention pond clearing and trenching necessary for the pipe installation.

3. Construction of a dry hydrant system including pond inlet/strainer, piping/support in the retention pond, trenching and installation of below grade 8” PVC to the hydrant, dry hydrant, stripping/signage and other work necessary for a complete system that meets the Seminole County Fire Department requirements.

4. Submittals and Contract requirements, including record drawings.

5. Mobilization and demobilization

B. Work shall conform to the Drawings and Specifications that form a part of these

Contract Documents.

C. The Contractor shall be licensed for Class 5 (Florida Fire Protection Systems).

1.03 WORK BY OWNER

A. Owner will continue the disposal of waste within the active landfill area. Owner will continue the use of the access road that runs through the construction area. Therefore, the access road must be kept open and the Contractor is to furnish flagmen and/or all weather bypass lanes when necessary.

B. If it is necessary in the course of operating the landfill for the Contractor to move its equipment and/or materials, he shall do so promptly and place that equipment and/or materials in an area that does not interfere with the landfill operations.

C. Construction Quality Assurance (CQA). Owner will provide on-site inspection and quality assurance during construction. Quality control procedures will involve spot

Dry Hydrant System 01010 - 2 January 2025 checking of soil placement testing and construction observation of the material and equipment components. Some of the functions are as follows:

Inspection of materials, Review of site layout, Sub-grade strength verification, Inspection of pipe placement and slope;

Review of pipe testing; and Inspection of Contractor’s CQA procedures associated with soil classification, lift thickness, permeability, and compaction verification.

Contractor shall adhere to CQA procedures and work in cooperation with the Owner and Engineer’s representatives toward the successful completion of the project.

1.04 WORK BY CONTRACTOR

A. The Contractor shall furnish all labor, materials, equipment, tools, services and incidentals to complete all of the work required as shown on the Drawings and specified.

B. The Contractor shall complete the work, in place, ready for continuous service, and shall include repairs, testing, permits, cleanup, replacements, and restoration required as a result of damages caused during construction.

C. All material, equipment, skills, tools, and labor which are reasonably and properly inferable and necessary for the proper completion of the work, in a substantial manner and in compliance with the requirements stated or implied by the Specifications or Drawings, shall be furnished and installed by the Contractor without additional compensation, whether specifically indicated in the Contract Documents or not.

D. The Contractor shall comply with all municipal, county, state, federal laws, rules, guidelines, and codes, which are applicable to the work.

E. The Contractor shall pay for all soil and compaction testing and any of the Owner’s retesting as a result of failure of the original test samples to meet the specification requirements.

F. The Contractor will be responsible for any and all traffic control around the construction area including constructing any by-pass roads to avoid construction areas.

G. The Contractor shall maintain dust control on all roads used for access to construction and all construction areas.

H. The Contractor shall be responsible for obtaining a building permit. The Owner will cooperate and assist with the process.

Dry Hydrant System 01010 - 3 January 2025

1.05 CONTRACTOR USE OF SITE

A. Access to Site: Limited to the locations shown on the drawings, or as designated by the Owner.

B. Working Period: On site work by Contractor is limited to normal landfill hours of operation, Monday through Saturday. The landfill is closed on legal holidays and on Sunday. If the Contractor desires to work when the landfill is closed, prior written permission of Owner must be obtained, and if Owner grants permission, Contractor must pay all Owner's associated costs, such as inspection and testing. These costs are estimated at $175.00 per hour for extra hours and holidays. Costs may be less if an inspector is not required to be on site (For example, periods where only materials are being delivered to the site.)

C. Construction Operations: Limited to Landfill Area, Contractor’s storage and office areas, or as noted on Drawings.

D. Limit Use of Landfill Property:

1. Allow use of active waste disposal areas by public and Owner including utilization of paved entrance roads and of haul roads.

2. Allow Owner activities for operation.

E. Utility Outages and Shutdown: Prior approval by Owner and minimized in duration.

F. Safety Precautions

1. No smoking on the landfill.

2. Explosive and hazardous gases may be present. Provide detection equipment and procedures for protection in accordance with Section 01030-Special Provisions.

G. Observe regulations posted at the landfill entrance for disposal of materials and use of the landfill.

1.06 SITE CONDITIONS

A. Test borings made on the site for use in the design are available for the Contractor's use.

B. The Contractor shall be responsible for having determined to his satisfaction, prior to the submission of his Bid, the conformation of the ground, the character and quality of the substrate, the types and quantities of materials to be encountered, the nature of the ground water conditions, the execution of the work, the general and local conditions and all other matters which can, in any way, affect the work under this

Dry Hydrant System 01010 - 4 January 2025

Contract. No claim for extras based on substrate or ground water table conditions will be allowed.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION (NOT USED)

END OF SECTION

Dry Hydrant System 01025 - 1 January 2025

SECTION 01025

MEASUREMENT AND PAYMENT

PART 1 – GENERAL

REQUIREMENTS INCLUDE

A. Payment for all work done in compliance with the Contract Documents, inclusive of furnishing all manpower, equipment, materials, and performance of all operations relative to construction of this project, will be made under Pay Items. Work for which there is not a pay item will be considered incidental to the Contract and no additional compensation will be allowed.

B. The Owner reserves the right to modify work as may be necessary and increase or decrease quantities of work to be performed, including deduction or cancellation of any one or more of the Pay Items. Changes in the work shall not be considered as a waiver of any conditions of the Contract nor invalidate any provisions thereof. When changes result in changes in the quantities of the work to be performed, the Contractor will accept payment according to Contract Unit Prices that appear in the original contract.

C. The Contractor's attention is called to the fact that the quotations for the various items of work are intended to establish a total price cost for completing the work in its entirety.

Should the Contractor feel that the cost of any item of the work has not been established by the Bid Form, s/he shall include the cost for the work in some other applicable bid item, so that his or her proposal for the project does reflect the Contractor’s total price for completing the work in its entirety.

D. The quantities for payment under this Contract shall be determined by actual measurement and payment of the completed items, in place, ready for service and accepted by the Owner, in accordance with the applicable method of measurement therefore contained herein. A representative of the Contractor shall witness all field measurements.

E. Work performed by the Contractor outside the limits of construction shall be at the Contractor's expense.

MEASUREMENT AND PAYMENT ITEMS

Work included in the Bid Schedule.

Bid Item 1 Bonds, Indemnification, and Insurance

a. Measurement: Measurement of various items for Payment & Performance Bonds, Indemnification, and Insurance will not be made for payment. All items shall be included in the lump sum price.

Dry Hydrant System 01025 - 2 January 2025

b. Payment: Payment of the applicable Contract lump sum price as stated in the proposal will be full compensation for furnishing all payment and performance bonds, indemnification, and insurance per the Contract Documents.

Bid Item 2 Mobilization & Demobilization

a. Measurement: Measurement of various items for Mobilization and Demobilization will not be made for payment. All items shall be included in the lump sum price.

b. Payment: Payment shall be full compensation for the preparatory work and operations in mobilizing for beginning Work on the project including, but not limited to, those operations necessary for the movement of personnel, equipment, supplies and incidentals to the project site, and for the establishment of field offices, storage sheds, safety equipment and first aid supplies, sanitary and other facilities, as required by these Specifications and State and local laws and regulations; and any other preconstruction expenses necessary for the start of the Work; the cost of General Requirements, permits and fees, construction schedules, project signs, shop drawings, temporary facilities, laydown storage area, construction aids, work associated with the Contractor support during Owner reviews and inspection, re-inspections and any rework resulting from the same; demobilization of personnel, equipment, supplies, and incidentals from the project site, contract close-out documents, removal of field offices and storage and final site clean-up. The Contractor shall submit invoices substantiating the cost of mobilization with each pay request. Payment will be made in accordance with the Contract Documents. The cumulative total shall not exceed the Lump Sum Bid Pay Item amount.

The final payment for mobilization/demobilization will not be made until all temporary facilities, temporary erosion and sedimentation controls, equipment, and appurtenances have been removed from the project site.

Bid Item 3 New Dry Hydrant Fire System

a. Measurement: Measurement of this item shall be based on satisfactory supply and installation of a new dry hydrant fire system in conformance with the Drawings, Specifications and Seminole County Fire Department complete and ready for continuous operation.

b. Payment: Payment of the applicable Contract lump sum price as stated in the proposal will be full compensation for furnishing all labor, materials, and equipment necessary for construction of a dry hydrant system including pond inlet/strainer, piping/support in the retention pond, trenching and installation of below grade 8” PVC to the hydrant, dry hydrant, fittings, site work (retention pond clearing and trench dewatering), concrete work, stripping/signage and appurtenances Work includes but is not limited to the following: all coordination, material and equipment, tools, and labor required to protect existing components to remain in service, maintaining landfill operations, and modifications to the existing site to accommodate new work.

Payment will be based on percentage of work completed during the pay period at the

Dry Hydrant System 01025 - 3 January 2025 time of the pay application to the nearest 5% complete; the cumulative total shall not exceed the Lump Sum Bid Pay Item amount.

Bid Item 4 Record Drawings

a. Measurement: Measurement for this item shall be based on satisfactory progress of the Contractor to provide project Record Drawings in accordance with the Owner requirements and specifications. Various items for project Record drawings shall not be made for individual payment and all items shall be included in the lump sum price.

b. Payment: Payment of the applicable Contract lump sum price as stated in the proposal will be full compensation for furnishing all labor, materials, and equipment necessary to create the project Record Drawings, including the certified as-built survey, in accordance with the Owner requirements and specifications. Payment will be made at the lump sum price divided into equal monthly payments based on the Contract Time and acceptance by Owner of the progressive as-built drawings.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION (NOT USED)

Dry Hydrant System 02220 - 1 January 2025

SECTION 02220

EXCAVATING, BACKFILLING, AND COMPACTING

PART 1 - GENERAL

1.01 DESCRIPTION

A. Scope of Work: The work included under this Section consists of excavating, backfilling and compacting for the construction of structures and utility systems consisting of piping and appurtenances as shown on the Drawings and specified herein.

B. Definitions:

1. Maximum Density: Maximum weight in pounds per cubic foot of a specific material as determined by AASHTO T-180 (ASTM D155).

2. Optimum Moisture: Percentage of water in a specific material at maximum density.

3. Rock Excavation: Excavation of any hard natural substance which requires the use of explosives and/or special impact tools such as jack hammers, sledges, chisels or similar devices specifically designed for use in cutting or breaking rock, but exclusive of trench excavating machinery.

4. Suitable: Suitable materials for fills shall be a noncohesive, nonplastic granular local sand and shall be free from vegetation, organic material, marl, silt or muck.

The Contractor shall furnish all additional fill material required.

5. Unsuitable: Unsuitable materials are highly organic soil (Peat or muck) classified as A-8 in accordance with AASHTO Designation M 145.

C. Plan For Earthwork: The Contractor shall be responsible for having determined to his satisfaction, prior to the submission of his bid, the conformation of the ground, the character and quality of the substrata, the types and quantities of materials to be encountered, the nature of the groundwater conditions, the prosecution of the work, the general and local conditions and all other matters which can in any way affect the work under this Contract. Prior to commencing the excavation, the Contractor shall submit a plan of his proposed operations (including maintenance of traffic) to the Engineer for review. The Contractor shall consider, and his plan for excavation shall reflect, the equipment and methods to be employed in the excavation. The prices established in the Proposal for the work to be done will reflect all costs pertaining to the work.

Dry Hydrant System 02220 - 2 January 2025

1.02 QUALITY ASSURANCE

A. Testing laboratory employed by the Owner will make such tests as are deemed advisable. The Contractor shall schedule his work so as to permit a reasonable time for testing before placing succeeding lifts and shall keep the laboratory informed of his progress. Costs for all testing shall be paid by the Owner. However, any and all tests which have to be repeated because of the failure of the tested material to meet specification shall be paid for by the Contractor and the cost of any tests shall be deducted from payments due the Contractor.

B. Standards:

1. OSHA 29 CFR Subpart P - Excavations and Trenches a) 1926.650, 1926.651, 1926.652.

2. OSHA 29 CFR Subpart J - a) 1910.146 for Confined Space Entry.

1.03 JOB CONDITIONS

A. Test borings and the sub-surface exploration data if previously done on the site will be made available upon request and are for the Contractor's information only.

B. If, in the opinion of the Engineer, conditions encountered during construction warrant a change in the footing elevation, or in the depth of removal of unsuitable material from that indicated on the Drawings, an adjustment will be made in the contract price, as provided in the Schedule of cost for Changes in Quantities.

1.04 PROTECTION

A. Sheeting and Bracing:

1. All requirements of the Trench Safety Act shall be adhered to at all times.

2. Furnish, put in place, and maintain such sheeting and bracing as may be required to support the sides of excavations, to prevent any movement which could in any way diminish the width of the excavation below that necessary for proper construction, and to protect adjacent structures, power poles, etc. from undermining, and to protect workers from hazardous conditions or other damage.

Such support shall consist of braced steel sheet piling, braced wood lagging and soldier beams or other acceptable methods. If the Engineer/RPR is of the opinion that at any points sufficient or proper supports have not been provided, he may order additional supports put in at the expense of the Contractor, and compliance with such order shall not relieve or release the Contractor from his responsibility for the sufficiency of such supports. Care shall be taken to prevent voids outside of the sheeting, but if voids are formed, they shall be immediately filled and

Dry Hydrant System 02220 - 3 January 2025 compacted. Where soil cannot be properly compacted to fill a void, lean concrete shall be used as backfill at no additional expense to the Owner.

3. The Contractor shall construct the sheeting outside the neat lines of the foundation unless indicated otherwise to the extent he deems it desirable for his method of operation. Sheeting shall be plumb and securely braced and tied in position.

Sheeting and bracing shall be adequate to withstand all pressure to which the structure or trench will be subjected. Any movement or bulging which may occur shall be corrected by the Contractor at his own expense so as to provide the necessary clearances and dimensions.

4. Where sheeting and bracing is required to support the sides of excavations for structures, the Contractor shall engage a Professional Geotechnical Engineer, registered in the State of Florida, to design the sheeting and bracing. The sheeting and bracing installed shall be in conformity with the design, and the Professional Engineer shall provide certification of this.

5. The installation of sheeting, particularly by driving or vibrating, may cause distress to existing structures. The Contractor shall evaluate the potential for such distress and, if necessary, take all precautions to prevent distress of existing structures because of sheeting installation.

6. The Contractor shall leave in place to be embedded in the backfill all sheeting and bracing not shown on the Drawings but which the Owner may direct him in writing to leave in place at any time during the progress of the work for the purpose of preventing injury to structures, utilities, or property, whether public or private. The Engineer/RPR may direct that timber used for sheeting and bracing be cut off at any specified elevation.

7. All sheeting and bracing not left in place shall be carefully removed in such manner as not to endanger the construction or other structures, utilities, or property. All voids left or caused by withdrawal of sheeting shall be immediately refilled with sand by ramming with tools especially adapted to that purpose, or otherwise as may be directed by the Engineer/RPR.

8. The right of the Engineer/RPR to order sheeting and bracing left in place shall not be construed as creating any obligation on his part to issue such orders, and his failure to exercise his right to do so shall not relieve the Contractor from liability for damages to persons or property occurring from or upon the work occasioned by negligence or otherwise, growing out of a failure on the part of the Contractor to leave in place sufficient sheeting and bracing to prevent any caving or moving of the ground.

9. No wood sheeting is to be withdrawn if driven below mid-diameter of any pipe, and under no circumstances shall any wood sheeting be cut off at a level lower than 1 foot above the top of any pipe.

Dry Hydrant System 02220 - 4 January 2025

B. Pumping and Drainage:

1. The Contractor shall at all times during construction provide and maintain proper equipment and facilities to remove all water entering excavations, and shall keep such excavations dry so as to obtain a satisfactory undisturbed subgrade foundation condition until the fills, structures or pipes to be built thereon have been completed to such extent that they will not be floated or otherwise damaged by allowing water levels to return to natural levels as stipulated in Section 02140.

The Contractor shall engage a Professional Geotechnical Engineer registered in the State of Florida, to design the dewatering systems for all structures. The Contractor shall submit to the Engineer for review a plan for dewatering systems prior to commencing work. The dewatering system installed shall be in conformity with the overall construction plan, and the Professional Engineer shall provide certification of this. The Professional Engineer shall be required to monitor the performance of the dewatering systems during the progress of the work and require such modifications as may be required to assure that the systems are performing satisfactorily.

2. Dewatering shall at all times be conducted in such a manner as to preserve the undisturbed bearing capacity of the subgrade soils at proposed bottom of excavation and to preserve the integrity of adjacent structures. Well or sump installations shall be constructed with proper sand filters to prevent drawing of finer grained soil from the surrounding ground.

3. Water entering the excavation from surface runoff shall be collected in shallow ditches around the perimeter of the excavation, drained to sumps, and pumped from the excavation to maintain a bottom free from standing water.

4. The Contractor shall take all additional precautions to prevent uplift of any structure during construction.

5. The conveying of water in open ditches or trenches will not be allowed.

Permission to use any storm sewers, or drains, for water disposal purposes shall be obtained from the authority having jurisdiction. Any requirements and costs for such use shall be the responsibility of the Contractor. However, the Contractor shall not cause flooding by overloading or blocking up the flow in the drainage facilities, and he shall leave the facilities unrestricted and as clean as originally found. Any damage to facilities shall be repaired or restored as directed by the Engineer or the authority having jurisdiction, at no cost to the Owner.

6. The Contractor shall prevent flotation by maintaining a positive and continuous operation of the dewatering system. The Contractor shall be fully responsible and liable for all damages which may result from failure of this system.

Dry Hydrant System 02220 - 5 January 2025

7. Removal of dewatering equipment shall be accomplished after the system is no longer required; the Contractor shall remove the material and equipment constituting the system.

8. The Contractor shall take all necessary precautions to preclude the accidental discharge of fuel, oil, etc. in order to prevent adverse effects on groundwater quality.

1.05 TESTING AND INSPECTION SERVICE

A. Unless otherwise indicated in the General Requirements, Contractor shall pay for all testing services. Owner has the right to employ and pay for the services of an independent testing laboratory to perform testing specifically indicated on the Contract Documents or specified in the Specifications and may at any other time elect to have materials and equipment tested for conformity with the Contract Documents

B. Laboratory will transmit:

1. One copy of test reports to Contractor and one copy to the Owner representative, if applicable.

2. Two copies of the test reports directly from the laboratory to the Engineer and one copy to the Owner’s representative.

3. Identify test reports by project title, Engineers File Number, project location, and location of each onsite test submitted.

PART 2 - PRODUCTS

2.01 MATERIALS

A. General:

1. All fill material shall be subject to the review and acceptance of the Engineer.

2. All fill material shall be free of organic material, trash, or other objectionable material. The Contractor shall remove excess or unsuitable material from the job site.

B. Common Fill Material: Common fill shall be sand and shall not contain stones, rock, concrete or other rubble larger than two (2) inches in diameter. It shall have physical properties that allow it to be easily spread and compacted.

C. Select Common Fill and Structural Fill: Fill shall be reasonably well graded sand to gravelly sand having the following gradation:

Dry Hydrant System 02220 - 6 January 2025

US Sieve Size Percent Passing By Weight 1 - in. 100 No. 4 75-100 No. 40 15-80 No. 100 0-30 No. 200 0-12

D. Class 1 Soils*: Manufactured angular, granular material, 1/4 to 1 1/2 inches (6 to 4

mm) size, including materials having significance such as crushed stone or rock, broken coral, crushed slag, cinders, or crushed shells. Sieve analysis for crushed stone is given below separately.

Crushed Stone: Crushed stone shall consist of clean mineral aggregate free from clay, loam or organic matter, conforming with ASTM C33 stone size No. 89 and with particle size limits as follows:

U.S. Sieve Size Percent Passing By Weight 1/2 100 3/8 90-100 No. 4 20-55 No. 8 5-30 No. 16 0-10 No. 50 0- 5

E. Class II Soils**:

1. GW: Well-graded gravel’s and gravel-sand mixtures, little or no fines. Fifty (50) percent or more retained on No. 4 sieve. More than 95 percent retained on No.

200 sieve. Clean.

2. GP: Poorly graded gravels and gravel-sand mixtures, little or no fines. Fifty (50) percent or more retained on No. 4 sieve. More than 95 percent retained on No.

200 sieve. Clean.

3. SW: Well-graded sands and gravelly sands, little or no fines. More than fifty

(50) percent passes No. 4 sieve. More than 95 percent retained on No. 200 sieve.

Clean.

4. SP: Poorly graded sands and gravelly sands, little or no fines. More than fifty

(50) percent passes No. 4 sieve. More than 95 percent retained on No. 200 sieve.

Clean.

* Soils defined as Class I materials are not defined in ASTM D2487.

** In accordance with ASTM D2487, less than 5 percent pass No. 200 sieve.

Dry Hydrant System 02220 - 7 January 2025

F. Coarse Sand: Sand shall consist of clean mineral aggregate with particle size limits as follows:

U.S. Sieve Size Percent Passing By Weight 3/8 inch 100 No. 10 85-100 No. 40 20-40 No. 200 0-12

G. Other Material: All other material, not specifically described, but required for proper completion of the work shall be selected by the Contractor and acceptable by the Engineer.

PART 3 - EXECUTION

3.01 PREPARATION

A. Clearing:

1. The construction areas shall be cleared of all obstructions and vegetation including large roots and undergrowth, within 10 feet of the lines of the excavation.

2. Strip and stockpile topsoil on the site at the location to be determined by the

Owner.

3.02 EXCAVATION

A. General: Excavations for roadways, structures and utilities must be carefully executed in order to avoid interruption of utility service.

B. Excavating for Roadways/Structures/Utilities:

1. Excavation shall be made to such dimensions as will give suitable room for building the foundations and the structures, for bracing and supporting, for pumping and draining, and for all other work required.

a. Excavation for precast or prefabricated structures shall be carried to an elevation 2 feet lower than the proposed outside bottom of the structure to provide space for the select backfill material. Prior to placing the select backfill, the excavation shall be measured by the Engineer to indicate to the satisfaction of the Owner that the excavation has been carried to the proper depth and is reasonably uniform over the area to be occupied by the structure.

b. Excavation for structures constructed or cast in place in dewatered excavations shall be carried down to the bottom of the structure where

Dry Hydrant System 02220 - 8 January 2025 dewatering methods are such that a dry excavation bottom is exposed and the naturally occurring material at this elevation leveled and left ready to receive construction. Material disturbed below the founding elevation in dewatered excavations shall be replaced with Class B concrete.

c. Footings: Cast-in-place concrete footing sides shall be formed immediately after excavation. Forming for footing sides is specified elsewhere.

2. Immediately document the location, elevation, size, material type and function of all new subsurface installations, and utilities encountered during the course of construction.

3. Excavation equipment operators and other concerned parties shall be familiar with subsurface obstructions as shown on the Drawings and should anticipate the encounter of unknown obstructions during the course of the work.

4. Encounters with subsurface obstructions shall be hand excavated.

5. Excavation and dewatering shall be accomplished by methods that preserve the undisturbed state of subgrade soils. Subgrade soils which become soft, loose, "quick" or otherwise unsatisfactory for support of structures as a result of inadequate dewatering or other construction methods, shall be removed and replaced by crushed stone as required by the Engineer/Project Manager at the Contractor's expense.

6. The bottom of excavations shall be rendered firm and dry before placing any structure. Excavated material not suitable for backfill shall be removed from the site and disposed of by the Contractor.

7. All pavements shall be cut prior to removal, with saws or approved power tools.

8. Excavated material shall be stockpiled in such a manner as to prevent nuisance conditions. Surface drainage shall not be hindered.

9. All locations and elevations as required herein must be permanently documented by the Contractor, on the Record Drawings prior to the Engineer's review and acceptance of the Application for Payment for that work.

3.03 DRAINAGE

A. The Contractor shall at all times during construction provide and maintain proper equipment and facilities to remove promptly and dispose of properly all water entering excavations, and keep such excavations dry so as to obtain a satisfactory undisturbed subgrade foundation condition. The dewatering method used shall prevent disturbance of earth below grade.

Dry Hydrant System 02220 - 9 January 2025

B. All water pumped or drained from the work shall be disposed of in a suitable manner without undue interference with other work, without damage to surrounding property, and in accordance with pertinent rules and regulations.

C. No construction, including pipe laying, shall be allowed in water. No water shall be allowed to contact masonry or concrete within 24 hours after being placed. The Contractor shall constantly guard against damage due to water and take full responsibility for all damage resulting from his failure to do so.

D. The Contractor will be required at his expense to excavate below grade and refill with crushed stone (gradation 57 or 89) or other acceptable fill material if the Engineer determines that adequate dewatering has not been provided.

3.04 UNDERCUT

A. If the bottom of any excavation is below that shown on the Drawings or specified because of Contractor error, convenience, or unsuitable subgrade due the Contractor's excavation methods, he shall refill to normal grade with fill at his own cost. Fill material and compaction method shall be as directed by the Engineer.

3.05 FILL AND COMPACTION

A. Compact and backfill excavations and construct embankment according to the following schedule. (Modified Proctor standard shall be ASTM D-1557):

STRUCTURES AND ROADWORK

Area Material Compaction Beneath Structures Structural Fill 12" lifts, compacted to 95% maximum density as determined by AASHTO T-180. Fill should not be placed over any in-place soils until those deposits have been compacted to 95% Modified Proctor.

Around structures Structural Fill 8" lifts, 95% of maximum density as determined by AASHTO T-180. Use light rubber-tired or vibratory plate compactors.

Beneath Paved Surfaces Common Fill 12" lifts, 98% by maximum density as determined by AASHTO T-180 or as required by the FDOT Standards.

Open Areas Common Fill 12" lifts, 95% by maximum density as determined by AASHTO T-180.

B. Unless otherwise indicated, pipe shall be laid in open trenches per drawings/details.

Minimum requirements are common fill in 12” lifts, compacted to 95% maximum density as determined by AASHTO T-180

Dry Hydrant System 02220 - 10 January 2025

C. Excavations shall be backfilled to the original grade or as indicated on the Drawings.

Deviation from this grade because of settling shall be corrected. Backfill operation shall be performed to comply with all rules and regulation and in such a manner that it does not create a nuisance or safety hazard.

D. Embankments shall be constructed true to lines, grades and cross sections shown on the plans or ordered by the Owner. Embankments shall be placed in successive layers of not more than 8 inches in thickness, loose measure, for the full width of the embankment. As far as practicable, traffic over the work during the construction phase shall be distributed so as to cover the maximum surface area of each layer.

E. If the Contractor requests approval to backfill material utilizing lifts and/or methods other than those specified herein, such request shall be in writing to the Owner.

Acceptance will be considered only after the Contractor has performed tests, at the Contractor's expense, to identify the material used and density achieved throughout the backfill area utilizing the method of backfill requested. The Owner's acceptance will be in writing.

3.6 FIELD QUALITY CONTROL

A. Quality control testing during construction: The Owner's testing service must inspect and approve subgrades and backfill layers before further construction work is performed.

1. Number of Tests: One test will be made in accordance with AASHTO T99, method C for each class of material. Field density tests shall be in accordance with ASTM D 2937 (drive cylinder method). Tests will be made as the fill and backfill work progress, in locations designated by the Engineer.

2. The Contractor’s testing service shall make field density tests in accordance with the following schedule:

WORK AREA TESTING TO BE PROVIDED

1. For each continuous 300' length One in place density test in each of trench or part thereof, backfilling 12" lift of compacted backfill.

in a single working day.

2. For each discreet excavation and One in place density test in each backfill location (i.e. manholes & wetwells, 12" lift of compacted backfill at pipe repair sites, pipe relocation sites, etc.) each individual site.

Examples:

1. 200 feet of continuous trench backfilled in a single day requires one set of tests.

2. 700 feet of continuous trench backfilled in a single day requires three sets of tests (two for the first 600' of trench and one for the remaining 100' of trench).

Dry Hydrant System 02220 - 11 January 2025

3. 200 feet of continuous trench backfilled in a single working day and two pipe repairs done during the same working day at separate locations requires three sets of tests (one for the continuous trench and one for each separate pipe repair locations).

B. If, in the opinion of the Engineer, based on testing service reports and inspection, subgrade or backfill which has been placed is below specified density, the Contractor shall provide all additional compaction and testing required to bring the deficient areas into compliance with this specification at no additional cost to the Owner.

C. Work on Non-Tested Areas: Placing permanent construction over backfill that has not been tested and approved may require removal of permanent work, recompacting the backfill, and replacing the work at no additional cost to the Owner.

Dry Hydrant System 15050 - 1 January 2025

SECTION 15050

PIPING SYSTEMS

PART 1 - GENERAL

1.01 DESCRIPTION

A. SCOPE:

This section specifies systems of process piping and general requirements for piping systems. Detailed specifications for the components listed on the Piping System Specification Sheets may be found in other sections of Division 15. This section shall be used in conjunction with those sections.

B. DEFINITIONS:

Pressure terms used in Section 15050 and elsewhere in Division 15 are defined as follows:

1. Maximum: The greatest continuous pressure at which the piping system operates.

2. Test: The hydrostatic pressure used to determine system acceptance.

1.02 QUALITY ASSURANCE

A. REFERENCES:

This section contains references to the following documents. They are a part of this section as specified and modified. In case of conflict between the requirements of this section and those of the listed documents, the requirements of this section shall prevail.

Reference Title

AASHTO M36/M36M-87 Metallic (Zinc or Aluminum) Coated Corrugated

Steel Culverts and Underdrains

ANSI A13.1-81 Scheme for the Identification of Piping Systems

ANSI B1.20.1-83 Pipe Threads, General Purpose (Inch)

ANSI B16.1-89 Cast Iron Pipe Flanges and Flanged Fittings Class 25, 125, 250, and 800

ANSI B16.3-85 Malleable Iron Threaded Fittings Class 150 and 300

ANSI B16.5-88 Pipe Flanges and Flanged Fittings

Dry Hydrant System 15050 - 2 January 2025

ANSI B16.9-86 Factory-Made Wrought Steel Buttwelding Fittings

ANSI B16.11-80 Forged Steel Fittings, Socket Welding and Threaded

ANSI B16.12-83 Cast Iron Threaded Drainage Fittings

ANSI B16.22-89 Wrought Copper and Copper Alloy Solder Joint

Pressure Fittings

ANSI B16.26-88 Cast Copper Alloy Fittings for Flared Copper Tubes

ANSI B31.1-89 Power Piping

ANSI B31.3-90 Chemical Plant and Petroleum Refinery Piping

ASME SECTION IX-89 Boiler and Pressure Vessel Code; Welding and

Brazing Qualifications

ASTM A47-84 Malleable Iron Castings

ASTM A53-90 Pipe, Steel, Black and Hot Dipped, Zinc-Coated

Welded and Seamless

ASTM A74-87 Cast Iron Soil Pipe and Fittings

ASTM A105/A105M-87a Forgings, Carbon Steel, for Piping Components

ASTM A106-90 Seamless Carbon Steel Pipe for High-Temperature

Service

ASTM A126-84 Standard Specification for Gray Iron Castings for

Valves, Flanges, and Pipe Fittings

ASTM A197-87 Cupola Malleable Iron

ASTM A234/A234M-89 Pipe Fittings of Wrought Carbon Steel and Alloy

Steel for Moderate and Elevated Temperatures

ASTM A312/A312M-89 Seamless and Welded Austenitic Stainless Steel Pipe

ASTM A403/A403M-90 Wrought Austenitic Stainless Steel Piping Fittings

ASTM A536-84 Ductile Iron Castings

ASTM A570/A570M-90 Hot-Rolled Carbon Steel Sheet and Strip, Structural

Dry Hydrant System 15050 - 3 January 2025

Quality

ASTM B88-89 Seamless Copper Water Tube

ASTM C76-89 Reinforced Concrete Culvert, Storm Drain, and

Sewer Pipe

ASTM C296-88 Asbestos-Cement Pressure Pipe

ASTM C443-REV A-85 Standard Specification for Joints for Circular

Concrete Sewer and Culvert Pipe, Using Rubber Gaskets

ASTM C564-88 Rubber Gaskets for Cast Iron Soil Pipe and Fittings

ASTM D1248-84 Polyethylene Plastics Molding and Extrusion

Materials

ASTM D1784-90 Rigid Poly (Vinyl Chloride) (PVC) Compounds and

Chlorinated Polyvinyl Chloride (CPVC) Compounds

ASTM D1785-89 Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules

40, 80, and 120

ASTM D2241-89 Poly (Vinyl Chloride) (PVC) Plastic Pipe (SDR-PR)

ASTM D2513-90 Thermoplastic Gas Pressure Pipe, Tubing, and

Fittings

ASTM D2665-89a Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings

ASTM D2996-88 Filament-Wound Reinforced Thermosetting Resin

Pipe

ASTM D3034-89 Standard Specification for Type PSM Poly (Vinyl

Chloride) (PVC) Sewer Pipe and Fittings

ASTM D3261-90 Butt Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and

Tubing

ASTM D4174-89 Cleaning, Flushing, and Purification of Petroleum

Fluid Hydraulic Systems

ASTM D4101-82 Propylene Plastic Injection and Extrusion Materials

Dry Hydrant System 15050 - 4 January 2025

ASTM F441-89 Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic

Pipe, Schedules 40 and 80

AWWA C105-88 Polyethylene Encasement for Ductile-Iron Piping for

Water and Other Liquids

AWWA C110-87 Ductile-Iron and Gray-Iron Fittings, 3 Inch through

48 Inch, for Water and Other Liquids

AWWA C111-85 Rubber-Gasket Joints for Ductile-Iron and Gray-Iron

Pressure Pipe and Fittings

AWWA C115-88 Flanged Ductile-Iron and Gray-Iron Pipe with

Threaded Flanges

AWWA C151-86 Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids

AWWA C200-86 Steel Water Pipe 6 Inches and Larger

AWWA C205-89 Cement-Mortar Protective Lining and Coating for

Steel Water Pipe--4 In. and Larger--Shop Applied

AWWA C206-88 Field Welding of Steel Water Pipe

AWWA C207-86 Steel Pipe Flanges for Waterworks Services--Sizes 4

In. through 144 In.

AWWA C208-83 Dimensions for Fabricated Steel Water Pipe Fittings

AWWA C209-84 Cold-Applied Tape Coating for Special Sections, Connections, and Fittings for Steel Water Pipelines

AWWA C210-92 Liquid Epoxy Coating Systems for the Interior and

Exterior of Steel Water Pipe

AWWA C214-89 Tape Coating Systems for the Exterior of Steel Water

Pipelines

AWWA C301-84 Prestressed Concrete Pressure Pipe, Steel Cylinder

Type, for Water and Other Liquids

AWWA C303-87 Reinforced Concrete Pressure Pipe--Steel Cylinder

Type, Pretensioned, for Water and Other Liquids

Dry Hydrant System 15050 - 5 January 2025

AWWA C600-87 Installation of Ductile-Iron Water Mains and Their Appurtenances

AWWA C651-86 Disinfecting Water Mains

AWWA C900-89 Polyvinyl Chloride (PVC) Pressure Pipe, 4 Inches through 12 Inches, for Water

AWWA M11-89 Steel Pipe--A Guide for Design and Installation

CISPI 301-75 Specification Data for Hubless Cast Iron Sanitary

System with No-Hub Pipe and Fittings

FEDSPEC L-C- Coating, Pipe, Thermoplastic Resin or 530B(1)-72 Thermosetting Epoxy

MIL-H-13528B-87 Hydrochloric Acid, Inhibited, Rust Removing

MIL-STD-810C Environmental Test Methods (1975)

SAE J1227-86 Assessing Cleanliness of Hydraulic Fluid Power

Components and Systems

UPC (1988) Uniform Plumbing Code

B. FITTINGS AND COUPLING COMPATIBILITY:

To assure uniformity and compatibility of piping components, fittings and couplings for grooved end piping systems shall be furnished by the same manufacturers.

PART 2 - PRODUCTS

2.01 PIPING MATERIALS

A. Unless otherwise specified, piping materials, including pipe, gaskets, fittings, connection and joint assemblies, linings and coatings, shall be selected from those listed in the piping system (Section 3.06). Piping materials shall conform to detailed specifications for each type of pipe and piping appurtenance specified herein or in other sections of Division 15.

B. Ductile Iron Pipe

1. Standards: ANSI A-21.50, AWWA C150 and ANSI A-21.51, AWWA C151.

2. Below ground piping: Class 350 (4”-12”), Class 250 (16”-24”) and Class 200

(24”-64”) unless otherwise noted or specified.

Dry Hydrant System 15050 - 6 January 2025

3. Above ground piping: Flanged, Class 350 (Minimum) unless otherwise noted or specified.

4. Ductile iron pipe fittings shall be the compact type meeting the requirements of ANSI/AWWA C110 and C153 where applicable. Where taps are shown on fittings, tapping bosses shall be provided. At a minimum, fittings shall have the same pressure rating as the connecting pipe.

a. Flanged Joint: ANSI/AWWA C110/21.10 and ANSI B16.1, faced and drilled 125-pound ANSI standard.

b. Mechanical Joint: ANSI/AWWA C110/A21.10

c. Provide mechanical joint fittings for all buried fittings, unless noted otherwise.

5. Gaskets

a. Potable and Reuse Water Service: Styrene Butadine Rubber (SBR) ring type.

b. Wastewater Service: Neoprene rubber ring type.

c. Class I landfill leachate

6. Joint Accessories

a. Mechanical joint bolts, washers and nuts: Ductile iron or Corten steel.

b. Flanged joint bolts, washers and nuts: 316 stainless steel.

7. Coatings

a. Below ground or in a casing pipe: Asphaltic coating, 1.0 mil DFT

b. Exposed exterior: Per Section 09900.

c. Water interior below ground: cement lined.

d. Wastewater or leachate interior: Protecto 401 ceramic epoxy (40 mil DFT) as manufactured by Induron Protective Coatings, Inc.

C. Natural Gas and Propane Systems:

1. Piping 1½ inches and smaller shall be seamless Schedule 40 black steel, ASTM

A106 or ASTM A53 Type "S", Grade A or B, with Class 150 black malleable iron threaded fittings conforming to ASME B16.3.

2. Piping 2-inch and larger shall be Type "S" seamless or Type "E" electric resistance welded Schedule 40 black steel, ASTM A53, Grade A or B, with Schedule 40 wrought carbon steel fittings, ASTM A 234 and butt weld joints, except that piping for connection to threaded valves and appurtenances shall be threaded in accordance with ANSI B2.1.

3. Piping exterior shall be coated a two-coat epoxy system per Section 09900.

Galvanizing shall not be considered adequate protection.

Dry Hydrant System 15050 - 7 January 2025

4. For propane systems, alternate pipe material may be considered provided the material and application complies with NFPA 58 and local codes. Alternate material may include polyethylene (ASTM D2513) , copper Type L or K; ASTM B42), or wrought-iron (ANSI B36.10M).

5. Gas Valves:

a. Gas valves 2-inch and smaller shall be three-piece bronze ball valve with threaded ends equal to Hammond 8604; Watts 6800 (YRPV); or Apollo 82- 100, modified with tee handles.

b. Gas valves larger than 2-inch shall be lubricated plug valves equal to valves manufactured by Powell; Homestead and Rockwell.

c. Gas valves shall be listed suitable for natural gas service.

D. Landfill Gas Pipe:

1. Stainless steel pipe and fittings 6-inch and less shall be fabricated from stainless steel sheet and conform to ASTM A778/A774 Type 316L. Carbon content of Type 316L material shall be 0.03 percent maximum. Finish shall be No. 1 or No. 2B.

2. Pipe shall be die-formed or rolled true to dimension and round. Tolerances for length, inside and outside diameter, and straightness shall conform to ASTM A530.

The two edges of sheet shall be brought to line so as not to leave a shoulder on the inside of the pipe. Ends of pipe and fittings shall be perpendicular to the longitudinal axis. Longitudinal seams on pipe and fittings shall be welded by either the tungsten gas or the metallic-gas method. The interior welds shall be smooth, even, and shall not have an internal bead higher than 1/16-inch. All pieces shall be marked with gauge and type of stainless steel and with the initials of the inspector marked on the inside of each piece, at each end.

3. Fittings shall be smooth curve type up to 18-inch diameter and mitered type 20-inch diameter and greater. Fittings shall conform to ANSI B 16.9.

4. Flanges for pipe 4-inch and smaller shall be of the type of stainless steel as the pipeline, and shall be welded directly to the pipe end, and shall be drilled to the 125 lb ANSI B 16.1 standard. Flanges for pipe larger than 4-inch shall have stub ends or rolled angle rings of the type of stainless steel as the pipeline welded to the pipe end, with suitable gaskets between the mating surfaces and joined through the use of 125 lb rated back-up flanges, drilled to ANSI B 16.1, and made of Type 316 stainless steel. Where the pipe stub is to pass through a sleeve during installation, a split-type back up flange shall be used. Bolts, washers, nuts, and other hardware for flange bolting shall be Type 316 stainless steel.

5. Gaskets for flanged connections shall be a minimum of 1/16-inch thick and shall be rubber, hypalon, teflon, BUNA-N, SBR, NBR, or viton.

6. Wall pipes shall have integral shop welded wall stops.

Dry Hydrant System 15050 - 8 January 2025

7. All stainless steel pipe and fittings shall be pickled at the point of manufacture, scrubbed, and washed until all discoloration is removed in accordance with ASTM A380.

8. Pipe ends shall be prepared for couplings or other type ends where required by transport and handling limitations, where required by the support layout requirements and where noted on the Drawings. Plain end pipe may be coupled with "Pressfit"-style connectors, for pipe/tubing sizes 1½-inch and smaller, manufactured by the Victaulic Co. or by the use of grooved end couplings.

Grooving (or built-up ends for Schedule 5s or l0s pipe) shall be of the coupling manufacturers standard type. Split ring, grooved end couplings shall not be used for digester gas. Contractor is responsible for ensuring rigidity of joints where required. All normal pipe joints at valves, bends, etc, shall be flanged, drilling per ANSI B 16.1, Class 125.

9. Shop welding of fabrications shall be done according to the procedures and by welders certified per ASME Section IX. Welds shall be by an inert gas shielding process using only extra low carbon filler metals. Welds shall have a bead height of no more than 1/16-inch. Butt welds shall have 100 percent penetration to the interior or backside of the weld joint. Cross-sectional thickness of welds shall be equal or greater than that of the parent metal.

10. Where shown on the Drawings or where approved by the Engineer, plain end pipe shall be joined by all stainless steel flexible couplings. Sleeve type couplings shall be of the Type 316L stainless steel and shall be Style 38 as manufactured by Dresser Manufacturing Division of Dresser Industries; coupling 411 as manufactured by Smith Blair, Inc. or equivalent couplings manufactured by Depend-O-Lok Co.

11. Where shown on the Drawings or where approved by the Engineer, restrained flanged coupling adaptors shall be used to connect plain end pipe to equipment, fittings, and valves. Flanged coupling adaptors shall be of the Type 316L stainless steel and shall comply with AWWA C207. Flanged coupling adapters shall be manufactured by Dresser Manufacturing Division of Dresser Industries; Smith Blair, Inc. or equal.

E. Double Wall Containment:

1. Pipe and fittings shall be made of black…