SPECS.pdf

Los Reales Landfill Cell 4B – Technical Specification www.scsengineers.com

Technical Specifications Los Reales Landfill - Cell 4B

[ISSUED FOR BID]

City of Tucson Environmental & General Services 5300 East Los Reales Road Tucson, Arizona 85756 520-791-3175

1600 Maple Avenue, Suite 118 Tempe, Arizona 85283

602-840-2596

01217256.11 | October 2022

Los Reales Landfill Cell 4B – Technical Specification www.scsengineers.com

TABLE OF CONTENTS

DIVISION 1 – GENERAL REQUIREMENTS

Section 01010 – Summary of Work Section 01016 – Health and Safety Considerations Section 01019 – Contract Considerations Section 01025 – Measurement and Payment Section 01035 – Modification Procedures Section 01050 – Field Engineering Section 01052 – Layout of Work and Surveys Section 01200 – Project Meetings Section 01300 – Submittals Section 01310 – Construction Schedule Section 01400 – Quality Control Section 01500 – Construction Facilities Section 01560 – Temporary Controls Section 01600 – Material and Equipment Section 01630 – Product Options and Substitutions Section 01700 – Contract Closeout

DIVISION 2 – SITEWORK

Section 02100 – Clearing and Grubbing Section 02221 – Excavating and Stockpiling Section 02222 – Earth Fills Section 02223 – Subgrade Preparation Section 02224 – Trenching, Backfill & Compacting Section 02275 – Riprap Section 02610 – Pipe Culverts Section 02711 – Polyethylene Pipe Section 02712 – PVC Pipe & Fittings Section 02715 – Leachate Collection System and Riser Piping Section 02771 – Geotextile Section 02778 – Geomembrane Section 02779 – Geosynthetic Clay Layer

DIVISION 3 – CAST-IN-PLACE CONCRETE

Section 03300 – Cast-in-Place Concrete

DIVISION 1 – EQUIPMENT

Section 11305 – Leachate Pumping Unit

DIVISION 1

GENERAL REQUIREMENTS

Los Reales Landfill Cell 4B – Technical Specifications www.scsengineers.com

SECTION 01010

SUMMARY OF WORK

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Contract Description

B. Construction Water

C. CONTRACTOR’s Use of Site

D. Description of Work

E. CONTRACTOR’s Work Scope

1.2 CONTRACT DESCRIPTION

A. Contract Type: Stipulated price as described in Agreement between Owner and Contractor on the Basis of a Stipulated Price.

1.3 CONSTRUCTION WATER

A. Construction water is available on-site at the existing water storage pond shown on the plans. CONTRACTOR shall verify information prior to procurement of equipment to accomplish remaining requirements of this Article.

B. The CONTRACTOR shall be responsible for installing pump, pumping, transporting and/or conveying all required construction water from the existing water storage pond to the point of use.

C. CONTRACTOR shall utilize means he deems necessary to separately store water in sufficient quantities to maintain dust control in conformance with Section 01560 and for compaction as required by the Division 2 specifications. The CONTRACTOR will not be allowed to utilize existing equipment (i.e., stand tank and J-stand) used for dust control water for the landfill operations.

D. The OWNER will not charge a fee to the CONTRACTOR for the use of pumped groundwater stored in the existing water storage pond. The costs associated with installing pump and appurtenances, pumping, storage (if required), transport and/or conveyance and utilization of construction water shall be included in the bid price for each item as identified in Section 01025.

1.4 CONTRACTOR’S USE OF SITE

A. The CONTRACTOR should limit activities to the project area, as shown on the Drawings, stockpiles, staging area and haul road as identified by the OWNER.

1.5 DESCRIPTION OF WORK

A. The work to be performed for this contract includes, but is not necessarily limited to, surveying, Cell 4B excavation, subgrade preparation, stormwater channel construction and riprap placement.

B. Upon completion of subgrade preparation and prior to the placement of the operations layer, the Contractor shall provide the necessary time on the project schedule for the geosynthetic material installer to construct all geosynthetic components of the base lining system.

C. Contractor shall supply all equipment and personnel required to offload and store all geosynthetic materials delivered to the site in preparation for installation. This shall be incidental to the project.

D. All work must be carried out and maintained per the Drawings and Specifications subject to the approval of the Design Engineer and Quality Assurance/Quality Control consultant.

1.6 CONTRACTOR’S WORK SCOPE

A. CONTRACTOR shall furnish all labor, materials, tools, equipment, supervision, transportation and installation services required to complete the excavation, earth fills, channel and road development and other construction described in these Specifications and the following Drawings;

1. Construction Plans for the Cell 4B Liner, Los Reales Landfill, Tucson, Arizona, sealed by Michael P. Bradford, P.E., SCS Engineers

2. Construction Quality Assurance Plan, Los Reales Landfill Cell 4B, by SCS Engineers, September 2022.

B. Unless otherwise specified in these specifications or the above-referenced drawings, all work shall be performed in conformance with the requirements of the Standard Specifications for Public Improvements, Pima Association of Governments (PAG), latest edition.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

END OF SECTION

SECTION 01016

HEALTH AND SAFETY CONSIDERATIONS

A. Preparing project site specific health and safety plan

B. Implementing project site specific health and safety plan

1.2 MEASUREMENT AND PAYMENT

A. Section will be considered part of cost of all other items of work. OWNER will not make separate payment for this section.

1.3 OTHER

A. The exact nature of materials and wastes disposed of at the landfill is unknown. The possibility exists of encountering gases and/or other substances during the Work that may be potentially hazardous to the safety and health of personnel, especially those working in the vicinity of open excavations and pipes venting gases.

B. The CONTRACTOR is advised that decomposing refuse produces landfill gas which is approximately 50 percent methane (natural gas) by volume. Landfill gas is colorless, can be odorless, may contain hydrogen sulfide, toxic or hazardous material, is combustible and may contain no oxygen. Landfill gas can also migrate through several thousand feet of soil adjacent to landfills.

The CONTRACTOR is therefore advised of the need for precautions against fire, explosion and asphyxiation when working on the landfill and in or near excavations on the project site.

1.4 SUBMITTALS

A. CONTRACTOR shall submit with the bid documents, a general Health and Safety

Plan to the OWNER, for informational purposes only.

B. CONTRACTOR shall submit, after Notice of Award but prior to the pre-construction meeting, a Site Specific Health & Safety Plan to be approved by OWNER (See Section 01300). Acceptance of the plan by the OWNER does not release the CONTRACTOR of liability in the event of an accident or injury, nor does it place any liability on the OWNER.

C. Submittals may be completed electronically.

3.1 CONSTRUCTION

A. CONTRACTOR shall be solely and completely responsible for initiating, maintaining, and supervising all safety precautions and programs in connection with the Work. Take all necessary precautions for the safety of, and provide the necessary protection to prevent injury or loss to all of the CONTRACTOR'S employees.

B. CONTRACTOR shall comply with all applicable Arizona Occupational Safety and Health Agency (OSHA) regulations. The CONTRACTOR'S Health and Safety Plan does not supersede or in any way relieve the CONTRACTOR of obligations under any applicable OSHA regulations including, but not limited to, 29 CFR 1910: Occupational Safety and Health Standards and 29 CFR 1926: Health and Safety Regulations for Construction.

C. CONTRACTOR shall be responsible for ensuring that all subcontractors abide with the contents of this section.

D. CONTRACTOR shall become familiar with potential hazardous health and safety conditions and risks associated with working in or near decomposing refuse at a landfill site and take the applicable precautions for work at the project site.

E. CONTRACTOR shall be solely responsible for determining and providing an appropriate health and safety program including monitoring, equipment, plans in event of problems and/or emergencies and other related items as needed.

3.2 SITE RESTRICTIONS

A. Smoking will not be permitted at the project site.

B. Reflective safety vests, hard hats and steel toed boots shall be worn by all personnel during work. Other personal protective equipment will be worn as necessary.

C. CONTRACTOR shall adhere to the posted speed limit at all times. Contractor shall further limit vehicle speeds as necessary for safe operation based on road conditions and construction traffic.

3.3 SITE SPECIFIC HEALTH AND SAFETY PROGRAM

A. Develop and implement a Health and Safety Program in accordance with all applicable Arizona Health and Safety regulations, Federal OSHA regulations 29 CFR 1910 and 29 CFR 1926 and any other applicable federal, state, or local agency regulations or requirements. If any of these requirements are in conflict, the more stringent requirement shall apply. The CONTRACTOR’S failure to be thoroughly familiarized with the aforementioned safety and health provisions shall not relieve the CONTRACTOR of responsibility for full compliance with the obligations and requirements set forth herein. The CONTRACTOR'S Health and Safety Plan shall include as appropriate, but shall not necessarily be limited to, the items required by OSHA 29 CFR 1910.120:

1. Organizational structure

2. Comprehensive work plan

3. Hazard analysis for each site task

4. Employee training

5. Personal protective equipment to be used for each task

6. Medical surveillance

7. Frequency and types of air monitoring, personnel monitoring and environmental sampling techniques and instrumentation to be used

8. Site control measures

9. Decontamination procedures

10. Emergency response plan

11. Confined space entry procedures (if part of the scope of work)

12. Spill containment program

B. CONTRACTOR shall provide to the OWNER, prior to the start of any field activities, certification that the requirements of this Section have been met.

This certification shall include:

1. Documentation of the training required under OSHA 29 CFR

1910.120 for site personnel and supervisors.

2. Documentation of current first aid and CPR training for at least two employees per work shift.

3. Documentation of participation of all site personnel in a medical surveillance program in accordance with OSHA 29 CFR 1910.120.

4. Documentation that all site personnel expected to wear respiratory protection have been medically examined and approved for wearing such equipment and have been fit tested in accordance with OSHA regulations.

C. The CONTRACTOR shall maintain a copy of the Health and Safety Plan at the site for the duration of the work.

D. If the OWNER observes any of the CONTRACTOR'S employees or subcontractors engaging in an unsafe act or procedures that may result in serious injury or death to the person performing the act/procedure, or to any other person, the OWNER shall have the right, but not the duty, to stop the work until the condition is corrected. The CONTRACTOR shall be held responsible for any increased costs that result from this work stoppage.

E. The CONTRACTOR shall be responsible for holding mandatory weekly safety meetings on the site. The OWNER shall be notified of the time and place for these meetings, so that they may attend if they desire. Meetings shall reiterate all safety measures to be taken and shall discuss any violations committed and preventive measures. The CONTRACTOR shall provide the OWNER with a copy of the minutes and the attendance upon request.

F. The CONTRACTOR shall provide all personnel working on the project with required orientation and training on the potential hazards and the appropriate use of safety equipment.

G. The CONTRACTOR shall meet applicable OSHA health and safety requirements at all times during drilling and excavations. The CONTRACTOR shall secure all work areas and close any open holes or excavations when not working by marking with ribbons and cones, and posting of signs indicating to the public to stay away due to the existence of deep open excavation.

SECTION 01019

CONTRACT CONSIDERATIONS

A. References and abbreviations of various industry associations, trade associations, societies, organizations and regulatory agencies, as referenced in the Contract Documents.

1.2 DESCRIPTIONS

A. The Contract Documents contain references to various standard

Specifications, codes, practices and requirements for materials, workmanship, installation inspections and tests. Which references are published and issued by the organizations, societies and associations listed below by abbreviation and name. Such references are hereby made a part of the Contract Documents to the extent cited.

B. Any material, method or procedure specified by reference to the number, symbol or title of a specific Specification or standard, such as a Commercial Standard, American National Standard, Federal or State Specification, Industry or Government Code, a trade association code or standard or other similar standard, shall comply with the requirements of the edition in effect on the date of Notice to Proceed.

C. The code, specification or standard referred to, except as modified in these Specifications, shall have full force and effect as though printed in these Specifications. These Specifications and standards are not furnished to bidders since manufacturers and trades involved are assumed to be familiar with their requirements. The OWNER will furnish, upon request, information as to how copies of the Specifications and standards referred to may be obtained.

1.3 ABBREVIATIONS

A. Whenever in the Contract the following abbreviations are used, their meanings shall be as follows:

AASHTO American Association of State Highway and Transportation Officials

ACI American Concrete Institute

ADEQ Arizona Department of Environmental Quality

ADOT Arizona Department of Transportation

ANSI American National Standards Institute

ASCE American Society of Civil Engineers

ASTM American Society for Testing and Materials

AWWA American Water Works Association

AZPDES Arizona Pollution Discharge Elimination System GRI

Geosynthetics Research Institute

FS Federal Specifications

NSF National Sanitation Foundation

OSHA Occupational Safety and Health Administration

PAG Pima Association of Governments

PC/COT Pima County/City of Tucson

PDEQ Pima County Department of Environmental Quality PPI

Plastic Pipe Institute

SPCC Spill Prevention, Control, and Countermeasures

SWPPP Stormwater Pollution Prevention Plan

COT City of Tucson

SECTION 01025

MEASUREMENT AND PAYMENT

A. Measurement and payment methods for line item bid with measurement and payment requirements.

1.2 MEASUREMENT OF QUANTITIES

A. Performed according to United States Measures.

B. Based on actual units installed or neat line dimensions of work completed.

1.3 CALCULATION OF QUANTITIES

A. Progress Payment Quantities:

B. CONTRACTOR will compute all quantities of Work performed or of materials and equipment delivered to the site for progress payment purposes.

C. OWNER may at any time verify quantities calculated by CONTRACTOR.

D. Final Payment Quantities: CONTRACTOR will compute all quantities of Work performed or of materials and equipment delivered and installed for final payment purposes. OWNER may perform an independent computation of all quantities of work performed and of materials and equipment installed.

1.4 PAYMENT

A. In accordance with lump sum, unit prices, or force account rates shown on the

CONTRACTOR’S final negotiated Bid Schedule.

B. Includes all costs for overhead and profit and for supplying materials, labor, equipment, and tools and all applicable Federal, State, County, City, and local taxes necessary to complete the Work in accordance with the Specifications, Drawings and Contract Conditions.

1.5 VALUES OF UNIT PRICES

A. The number of units and quantities contained in the Bid Schedule are approximate only and final payment will be made for the actual number of units and quantities incorporated in the work or made necessary to complete the project. All unit and lump prices shall include applicable Federal, State, County, City and local taxes.

B. In the event that work and materials or equipment are required to be furnished to a greater or lesser extent than is indicated by the Contract Documents, such work and materials or equipment shall be furnished in greater or lesser quantities.

1.6 CHANGES AND EXTRA WORK

A. Changes and extra work will be measured and paid for in accordance with the requirements of this Section.

1.7 REJECTED MATERIALS

A. Quantities of material wasted or disposed in a manner not called for in the Specifications; rejected loads of material including material rejected after it has been placed by reasons of the failure of CONTRACTOR to conform to the provisions of the Specifications; material not unloaded from the transporting vehicle; material placed outside the limits indicated by the Drawings or established by OWNER; or material remaining on hand after completion of the Work, will not be paid for, and such quantities will not be included in the final total quantities. No compensation will be made for loading, hauling and disposing of rejected material.

1.8 FORCE ACCOUNT WORK

A. Payment for Force Account work will be determined as follows:

B. Labor.

a. Payment for labor will be based on the Force Account Labor Rate Schedule submitted with the bid.

b. Payment constitutes full compensation for labor including wages, benefits, overhead and profit for each individual.

C. Equipment.

a. Payment for equipment will be based on the Force Account Equipment Rate Schedule submitted with the bid.

b. Payment constitutes full compensation for supplying equipment and includes all costs for maintenance, fuel, insurance, overhead, profit and any other costs necessary to provide and operate the equipment. Payment does not include operator labor cost.

D. Materials.

a. Payment for materials will be paid for at CONTRACTOR’s invoiced cost plus 10 percent.

b. Payment will be based on invoices from suppliers documenting cost to CONTRACTOR.

c. Where invoices are not available, a unit cost must be approved by the OWNER prior to use of the material.

1.9 PAY ITEMS

A. Mobilization/Demobilization Bid Item 1

1. Measurement by Lump Sum (LS), based on mobilizing of equipment and labor to perform work and demobilizing from and cleaning the site after all work and testing has been performed and accepted by the OWNER.

2. Payment as follows: 50 percent of lump sum amount upon completion of 10 percent of the work and 50 percent after demobilization and site cleanup. Payment includes all costs for mobilizing and demobilizing equipment, living expenses, bonds, insurance, office and field overhead, geosynthetic installer management and any other administrative costs necessary to complete the work. Includes work described in all Construction Documents (Plans, Specifications, CQA Plan). Payment will be limited to 5 percent of the total contract price.

B. AZPDES Permit and the Storm Water Pollution Bid Item 2 Prevention Plan and Implementation

1. Measured by Lump Sum.

2. Payment includes all costs to prepare and submit to the State of Arizona a Construction Storm Water Pollution Prevention Plan, Notice of Intent, Notice of Termination for the project area. Bid item also includes Contractor’s cost to fully implement, monitor, and document the provisions of the permitted SWPPP during the contract term and until the Owner has provided acceptance of the work. Failure to implement proper stormwater control measures resulting in damage to completed work during the contract term will be repaired/replaced at the Contractor’s expense. Contractor not responsible for stormwater controls outside the limits of the construction areas. Stormwater controls shall be in accordance with the requirements of Section 01560.

C. Demolition, Salvage, Removal, and Disposal Bid Item 3

1. Measurement by Lump Sum

2. Payment includes all cost to completely demolish, remove, salvage or dispose of the existing steel frame building, pump and treat storage pond, and water truck filling station as directed on Sheet 4 of the Construction Plans. Associated surface soil cut/fill grading quantities measurement and payment are included in Bid Item 4.

D. Mass Excavation and Grading Bid Item 4

1. Measured by in-place Cubic Yard. Includes Clearing/Grubbing (Section 02100) Excavation, Stockpiling of Cut Material (location as directed by Owner, Section 02221), Placement and Compaction of Fill Material (Engineered, General, or Channel Berm as defined in Section 02222), Rough Grade, and Fine Grade of Cell 4B Subgrade and Perimeter Infrastructure as shown on Sheet 5 of the Plans, and Pump and Treat Pond Grading as Shown on Sheet 10 of the Plans. [Note: estimated cut quantities shown are bank and fill quantities are compacted in place]

2. Measurement of in-place cut and fill quantities will be made by comparing pre-construction topography with post-construction topography. Pre- construction topography will be established by field survey of existing grades. Survey will establish existing grades at a maximum 50-foot grid and establish major grade breaks. Post-construction topography will be established by a similar survey at a maximum 50-foot grid and also establish major grade breaks.

Calculations will be made on an average end area basis vertically with a 2-foot contour interval.

3. Payment will be made by the Cubic Yard. Payment includes all costs to load, haul, place, moisture condition and compact as described in Sections 02221 and 02222, and as shown on the Drawings.

E. Four (4) Parallel - 24” HDPE Corrugated Pipe Culverts Bid Item 5

1. Measured by the actual installed total Linear Foot, based on post-construction survey.

2. Payment will be by Lineal Foot. Payment includes all costs to furnish the equipment and labor necessary to install the culvert pipes, including but not limited to fusion or joints of pipe and fittings (if any) backfill and compaction as specified in the Construction Plans.

F. 12”-24” Riprap Aprons Bid Item 6

1. Measurement by area installed, measured by the square yard based on a perimeter survey of the completed installation.

2. Payment will be by the Square Yard. Includes all costs to over excavate, prepare subgrade, install geotextile and furnish and place riprap 18-inches thick minimum where shown on plans.

G. Asphalt Millings Road Surfacing Bid Item 7

1. Measurement by volume installed measured by the cubic yard.

2. Payment will be the cubic yard compacted in place. Includes all costs to over place and compact for the full road top widths indicated on the Construction Plans in two 6-inch compacted lifts for a total 12-inch final compacted thickness.

H. Liner Subgrade Preparation Bid Item 8

1. Measurement by Lump Sum.

2. Measurement based on acceptance of subgrade for liner placement by the CQA Consultant and the geosynthetics installed.

I. Exposed, Clean, and Connect to Cell 4A Liner Tie-In Bid Item 9

1. Measurement by Lineal Foot of tie-in uncovered, based on the perimeter survey performed along the eastern edge of the bottom liner of the Cell 4B area.

2. Payment will be by Lineal Foot. Payment includes all costs to locate, excavate, remove plywood, expose tie-in and prepare liner as shown on the Drawings and described in Sections 02778 and 02779.

J. Geosynthetic Clay Liner Bid Item 10

1. Measurement by area installed including anchor trenches, measured by the 3-dimensional surface area (parallel to surface) in square foot based on a perimeter survey of the completed installation. No adjustment will be made for uneven contours or for overlap at seams or wastage. No measurement will be made for geosynthetic clay liner lost due to damage resulting from either the fault or negligence of the CONTRACTOR. The perimeter is defined as the neat line dimension of the liner limit shown on the anchor trench and perimeter details.

2. Payment will be by the Square Foot. Includes all costs to install the geosynthetic clay liner, as shown on the Drawings and described in Section 02779.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the geosynthetic clay liner.

K. 60-Mil, Double-Sided Textured Geomembrane Liner Bid Item 11

1. Measurement by area installed including anchor trenches. Measured the 3-dimensional surface area (parallel to surface) by square foot based on a perimeter survey of the completed installation. No adjustment will be made for uneven contours or for overlap at seams or wastage. No measurement will be made for geomembrane lost due to damage resulting from either the fault or negligence of the CONTRACTOR. The perimeter is defined as the neat line dimension of the liner limits shown on the anchor trench and perimeter details.

2. Payment will be by the Square Foot. Includes all costs to install the geomembrane, as shown on the Drawings and described in Section 02778.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the geomembrane liner.

L. 16-oz/square yard Non-Woven Needle Punched Geotextile Bid Item 12

1. Measurement by area installed including anchor trenches. Measured the 3-dimensional surface area (parallel to surface) by square foot based on a perimeter survey of the completed installation. No adjustment will be made for uneven contours or for overlap at seams or wastage. No measurement will be made for geomembrane lost due to damage resulting from either the fault or negligence of the CONTRACTOR. The perimeter is defined as the neat line dimension of the liner limits shown on the anchor trench and perimeter details.

2. Payment will be by the Square Foot. Includes all costs to install the geotexile, as shown on the Drawings and described in Section 02771.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the geomembrane liner.

M. 8-oz/square yard Non-Woven Needle Punched Geotextile Bid Item 13

1. Measurement by area installed including anchor trenches. Measured the 3-dimensional surface area (parallel to surface) by square foot based on a perimeter survey of the completed installation. No adjustment will be made for uneven contours or for overlap at seams or wastage. No measurement will be made for geomembrane lost due to damage resulting from either the fault or negligence of the CONTRACTOR. The perimeter is defined as the neat line dimension of the liner limits shown on the anchor trench and perimeter details.

2. Payment will be by the Square Foot. Includes all costs to install the geotexile, as shown on the Drawings and described in Section 02771.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the geomembrane liner.

N. Anchor Trench Bid Item 14a-14e

1. Measurement by the Lineal Foot of Anchor Trench installed along the west side of the Cell 4B area.

2. Payment will be by Lineal Foot. Payment includes all costs to locate, excavate, backfill and compact, placement of protective berm, and placement of plywood as indicated for the various Anchor Trench types as shown on the Drawings and described in Section 02222.

O. Leachate Collection and Removal System (LCRS) Bid Item 15 Drainage Layer Gravel

1. Measurement will be based on the surveyed area multiplied by the specified neat line thickness for the LCRS drainage layer gravel material meeting the gradation requirements of Section 02222 and as shown on the Drawings. CONTRACTOR will be responsible for verifying specified thickness by survey methods. No adjustments will be made in the area for uneven contours.

2. Payment will be by the Cubic Yard in-place. Payment includes all costs to furnish equipment and labor to load, haul and place material as shown on the Drawing.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the LCRS drainage layer gravel.

P. Protective Soil Layer Bid Item 16

1. Measurement will be based on the surveyed area multiplied by the specified neat line thickness for the Operations Layer Material meeting the gradation requirements of Section 02222 and as shown on the Drawings. CONTRACTOR will be responsible for verifying specified thickness by survey methods. No adjustments will be made in the area for uneven contours.

2. Payment will be by the Cubic Yard in-place. Payment includes all costs to furnish equipment and labor to load, haul and place material as shown on the Drawings and as described in Section 02222.

Q. 6” PVC Leachate Collection Drain - Perforated Bid Item 17

1. Measurement based on actual length, based on survey performed by

CONTRACTOR.

2. Payment will be by Lineal Foot. Payment includes all costs to furnish the equipment and labor necessary to install the leachate collection drain, including but not limited to, perforated PVC pipe and gravel fill.

3. This item will also include all Construction Quality Control testing conducted by the Contractor for the leachate collection drain – perforated.

R. 18” HDPE Leachate Riser - Solid Wall Bid Item 18

1. Measured by the actual Linear Foot, based on survey performed by

CONTRACTOR.

2. Payment will be by Lineal Foot. Payment includes all costs to furnish the equipment and labor necessary to install the leachate riser – solid wall, including but not limited to, cut and connect to existing riser end cap, geotextile (quantity included in Bid Item 12), solid wall HDPE pipe, reducers, fittings, and bench gravel fill.

S. Leachate Riser Pump Station Concrete Headwall Bid Item 19

1. Measured by Lump Sum.

2. The Contractor is responsible for the purchase and complete installation two leachate pumping systems at the location indicated on the Construction Drawings. This includes installation/mounting of pump control boxes, pump startup/programming/testing.

3. The Contract Price for this item shall be full lump sum compensation per completed and approved pump system and shall include all labor, material, equipment, and other incidentals required to provide an operational pumping system to comply with the Contract Drawings and Technical Specifications (unless specifically identified as a pay item).

T. Leachate Pump and Control Panels Bid Item 20

1. Measured by Lump Sum

2. The Contractor is responsible for complete purchase and installation of the complete leachate pumping system (pump, panels, cables, controllers, etc) at the leachate pumping system location indicated on the Construction Drawings. The Contract Price for this item shall be full lump sum compensation per completed and approved pump system and shall include all labor, material, equipment, and other incidentals required to provide an operational pumping system.

U. Leachate Pump Discharge Assembly Bid Item 21

1. Measured by Lump Sum

2. The Contractor is responsible for complete installation of the mechanical pump discharge assembly at the leachate pumping system locations indicated on the Construction Drawings. This includes connection to the leachate forcemain. The Contract Price for this item shall be full lump sum compensation per completed and approved pump system and shall include all labor, material, equipment, and other incidentals required to provide an operational pumping system.

V. 3”x6” HDPE Dual Contained Leachate Forcemain Bid Item 22

1. Measured by the actual Linear Foot, based on survey performed by

CONTRACTOR.

2. Payment will be by Lineal Foot. Payment includes all costs to furnish the equipment and labor necessary to install the 3”x6” HDPE Dual Contained Forcemain including but not limited to connect to leachate pump discharge assembly, trenching, bedding, backfill/compaction of trench, dual contained pipe, reducers and fittings, and pressure testing necessary to extend the forcemain along the indicated alignment below grade up-to the proposed Frac Tank.

W. Construct Cell 4A Water Truck Filling Station Bid Item 23

1. Measured by Lump Sum

2. Payment includes all costs to furnish the equipment and labor necessary to purchase and install 21,000 gallon Frac Tank; perform mechanical connection assembly of leachate forcemain to Frac tank top fill port; Relocation of existing 7HP pump (including construction of new reinforced concrete pump pad); Relocation of existing Water Truck Filling J-Stand and Cattle Guard; perform mechanical piping connections and assembly between Frac Tank, 7HP Pump, and J-Stand.

X. Construct Pump and Treat Pond Water Truck Fill Station Bid Item 24

1. Measured by Lump Sum

2. Payment includes all costs to furnish the equipment and labor necessary to purchase and installation new 7HP Pump, J-Stand and Cattle Guard (includes reinforced concrete pad for pump); perform mechanical connections between pond, pump, and J-stand; relocate and install of existing 5-hp pump (includes reinforced concrete pad for pump); relocation of existing Inclined Tank and cattle guard; perform piping and Mechanical connections between 5HP Pump and Inclined Tank; Purchase and Install Piping Connections between existing potable water valve and Inclined Tank.

Y. Cut and Redirect existing Pump and Treat Discharge Line Bid Item 25

To New Pond.

1. Measured by Lump Sum

2. Payment includes all costs to furnish the equipment and labor necessary to cut, remove, and dispose of existing below grade forcemain, protect in place existing pump and discharge assembly, redirect pump discharge to fill new pond.

Z. Electrical Services and Connections Bid Item 26

1. Measured by Lump Sum

2. Payment includes all costs to furnish the equipment and labor necessary to provide power to the various pumps and lighting as specified in the Electrical Construction Plans. All electrical work must be performed by a qualified electrician licensed in the State of Arizona.

Bid price shall include necessary anticipated costs associated obtaining necessary electrical permits from the City and Local Utility, and coordinating inspections of work by the City and Local Utility for approval.

AA. Construction Taxes Bid Item 27

1. Measured by incurred cost.

2. Payment includes all costs assessed for Federal, State, County and City taxes. CONTRACTOR shall provide invoices or similar documentation of the assessed tax amount from each taxing authority to the OWNER verifying the actual amount paid. Taxes under this item will be paid at the actual amount assessed, without markup, and will not be subject to the early payment discount provision to this contract.

SECTION 01035

MODIFICATION PROCEDURES

A. Field Orders

B. Work Directive Changes

C. Change Orders

1.2 CHANGE PROCEDURES

A. OWNER will issue Field Orders for minor changes in the Work not involving an adjustment to Contract Price or Contract Time.

B. OWNER may issue a Proposal Request which includes a detailed description of a proposed change with supplementary or revised Drawings and Specifications, a change in Contract Time for executing the change with a stipulation of any overtime work required and the period of time during which the requested price will be considered valid. CONTRACTOR shall prepare and submit a Proposal with estimate within 5 days.

C. CONTRACTOR may request a change by submitting a Proposal to OWNER, describing the proposed change and its full effect on the Work. Include a statement describing the reason for the change, the effect on the Contract Price and Contract Time and a statement describing the effect on Work by separate or other contractors in accordance with Section 00675 within the Project Manual.

D. OWNER may issue a Work Change Directive for any change which, if not processed expeditiously, might delay the Project. This is not a Change Order, but only a directive to proceed with Work that may be included in a subsequent Change Order.

E. Changes affecting Contract Price or Contract Time, resulting under paragraphs 1.2 B, C, and D of this Section, will be processed as a Change Order.

SECTION 01050

FIELD ENGINEERING

A. General requirements for survey work to be performed by CONTRACTOR to layout Work under this Contract.

B. Before commencing any surveys, CONTRACTOR will give OWNER two working days advance notice so that OWNER may witness such work.

1.2 RELATED SECTIONS:

A. Section 01025 - Measurement and Payment

1.3 DESCRIPTION

A. Reference points: Reference points to be provided by OWNER pursuant to the

General Conditions will include referenced monuments and elevation benchmarks in the vicinity of the Project. If displaced by CONTRACTOR, replacement of these reference points will be at the expense of CONTRACTOR.

All surveys for record drawings shall tie to a minimum of three of these reference points and shall use the site coordinate system previously established by the OWNER’s survey and utilized in the design Drawings.

B. CONTRACTOR will furnish all necessary detail surveys including all lines, grades, and elevation appropriate to control construction. At a minimum, construction surveys are required for top of subgrade and top of the liner system.

C. Use by OWNER: OWNER may at any time use line and grade points and markers established by CONTRACTOR. CONTRACTOR's surveys are a part of the Work and may be checked by OWNER at any time. CONTRACTOR is responsible for any lines, grades or measurements which do not comply with specified or proper tolerances, or which are otherwise defective and for any resultant defects in the Work. CONTRACTOR will be required to conduct re-surveys or check surveys to correct errors indicated by review of the field notebooks or otherwise detected.

1.4 SURVEYS FOR MEASUREMENT FOR PAYMENT

A. When the Specifications or OWNER require Bid Schedule items of work to be measured by surveying methods, CONTRACTOR will perform the surveys. All such surveys, including control surveys for establishing the measurement reference lines, will be performed by a duly qualified and licensed surveyor in the presence of CONTRACTOR who will provide notice so OWNER may witness the surveying operation. OWNER may independently check calculations of final quantities for payment purposes. A duplicate of the note reductions and calculations will be given to OWNER. All calculated quantities shall be certified by surveyor as to accuracy.

1.5 SURVEYING ACCURACY AND TOLERANCES IN SETTING OF SURVEY STAKES

A. Perform control traverse field surveys and computations to an accuracy of at least 1:10,000.

B. The tolerances applicable in setting survey stakes are as set forth below.

Such tolerances cannot supersede stricter tolerances required by the Drawings or Specifications and cannot otherwise relieve the CONTRACTOR of responsibility for measurements in compliance therewith.

Type of Mark Horizontal Position Elevation

Permanent reference points 1 in 10,000 ±.01 ft.

General excavation and earthwork 1 in 2,000

±.10 ft.

C. Tolerances for designed thickness shown on Drawings and for elevations shown on the Drawings are ±0.10 foot unless otherwise specified.

D. Surveyor must be licensed in the State of Arizona.

SECTION 01052

LAYOUT OF WORK AND SURVEYS

1.1 SUMMARY

A. Section includes requirements for survey work to be provided by the

CONTRACTOR for the following:

Setting offset stakes, slope stakes and grade stakes for field layout of features for performance of the Work

Surveys for measurement of quantities for payment Record

Drawings

1.2 DESCRIPTION

A. Reference Points. The reference points provided by the OWNER include monuments and elevation bench marks in the vicinity of the Project. If displaced during the project, replacement of these reference points will be at the expense of the CONTRACTOR. All surveys for record drawings shall tie to a minimum of three of these reference points and shall use the site coordinate system previously established by the OWNER’s survey and utilized in the Design Plan Drawings.

B. The OWNER reserves the right to perform any desired checking and correction of the CONTRACTOR’s layout work relative to OWNER's surveys but this does not relieve the CONTRACTOR of the responsibility for adequate performance of their Work.

C. Equipment and Personnel. Provide instruments and other survey equipment that are accurate, suitable for the surveys required in accordance with recognized professional standards and in proper condition and adjustment at all times. Perform surveys under the direct supervision of a licensed surveyor.

D. Field Notes and Records. Record surveys in field notebooks.

E. Use by the OWNER. The OWNER may at any time use line and grade points and markers established by the OWNER or CONTRACTOR. The CONTRACTOR’s surveys are a part of the Work and may be checked by the OWNER or representatives of the OWNER at any time.

1.3 RELATED SECTIONS

A. Section 01025 – Measurement and Payment

B. Section 01050 – Field Engineering

1.4 SURVEYS FOR LAYOUT AND PERFORMANCE OF WORK

A. CONTRACTOR will perform all surveys for layout of the Work, reduce the field notes, make necessary calculations, and prepare drawings necessary to carry out such work. CONTRACTOR’s layout work will include the following:

1. Slope staking for excavations at 25-foot grid, and grade breaks

2. Blue top for subgrade at 25-foot grid and grade breaks

3. All as-built surveys specified in Section 01052

4. Surveys to measure completed units of work specified in Section 01025

B. CONTRACTOR must perform all additional slope staking, off-setting and other control staking necessary to perform the Work.

1.5 SURVEYS FOR RECORD DRAWINGS AND MEASUREMENT FOR PAYMENT

A. When the Specifications require items of work to be measured by surveying methods, the CONTRACTOR will perform the surveys and perform necessary calculations to determine payment quantities. The ENGINEER may perform independent checks.

B. Items requiring surveys for determining pay quantities are given in Section 01025, Measurement and Payment.

C. The Surveyor shall prepare drawings for each layer of the lining system (subgrade, top of compacted soil, and top of protective soil layer). Points shall provide a comparison of the design elevation against the actual elevation at each point. Points shall be established on a 50-foot maximum grid. Additionally, points shall be established at major changes in grade, changes in alignment, along flow lines, and at any specific points shown in the Drawings. The difference in design verses constructed elevation for each point shall not exceed the tolerance described in Section 01050 paragraph 1.5.B.

D. Provide the OWNER with Record (As-Built) Drawings. Separate and distinct sheets shall be provided depicting existing conditions, top of subgrade/finished earth surface and top of operations layer. Sheets shall include the following items:

1. Topography that depicts Cell 4B grading at the start of construction and following excavation and fills. In the event the Contractor must excavate below the design subgrade as required by these specifications or to remove unsuitable material (at the direction and approval of the Engineer or Owner), Contractor shall provide as- built survey of the final excavated limits and grades, the limits of fill and grades after placement of engineered fill to establish subgrade and the final grade.

2. Staking points, grade breaks and limit lines of earthwork as shown in the Design Drawings.

3. Staking points, grade breaks and limits of liner as shown in the Design Drawings. Where not coincident, limits shall be provided for the geomembrane, GCL and geotextile including anchor trench alignment and temporary liner terminations (special attention to be given to specific as-built points as required in the Construction Drawings.

4. Staking points, grade breaks and limits of operations layer as shown in the Design Drawings.

5. Limits and Grades of earthwork in the perimeter berm. Include staking points, grade breaks and points of change in surface material.

6. Miscellaneous Items - CONTRACTOR’S Surveyor shall include the following as-built information on one of the sheets identified above, as appropriate, or shall provide additional sheets, as needed. The specific sheet for each element shall be as approved by the OWNER.

a. Location and alignment of buried utilities and buried culverts.

b. Initial and finish grades for storm water control features.

c. Limits of temporary or permanent access roads.

d. Subgrade and finished grade of temporary or permanent access roads.

e. Stockpile limits and grades (pre- and post-construction).

f. Final site as-builts showing contours and any other miscellaneous constructions including fence, wells, probes, electrical, etc.

g. Owner-provided reference points shall be shown on all applicable as-built drawing sheets.

E. Surveyor shall provide a Text/ASCII file containing all collected as-built locations. As-built drawings shall depict all collected locations with an associated point reference number such that points in the provided Text/ASCII file can be referenced on the drawings.

F. Surveyor shall submit certified top of subgrade as-built point drawings within 2 days of completion of the subgrade. Where applicable, Surveyor shall provide certified top of compacted soil as-built point drawings within 2 days of completion of this layer. These submittals must be approved by the OWNER before installation of the next liner component begins. In order to avoid project delays, the Surveyor may provide submittals for portions of each completed surface for approval; however, a final consolidated drawing of each surface shall be provided at the completion of each surface.

G. All final as-built topographic survey drawings are due within 10 days after Substantial Completion date.

H. Provide sealed as-built survey drawings on a 22” x 34” bond print at same horizontal and vertical scale, same coordinate system, same stationing and same orientation for each element as shown on the design drawings. Provide as-built survey information and associated point data on the same datum and coordinate basis as design drawings. All point data must have clear, easy to understand descriptions. Provide all point data in Text/ASCII format, printed and on compact disk (CD) or DVD along with list of descriptor abbreviations. All information provided must be accompanied with a letter explaining what is being submitted and a list of what information is given in each CD/DVD. Submit all survey information of any layer to the OWNER before that layer is covered.

I. Surveyor shall provide all drawings in electronic format. Provide information in AutoCAD 2012 or higher format in accordance with OWNER’S drafting standards. Surveyor shall also provide documents in Adobe .pdf format. For drawings which are used as the basis for a City of Tucson Grading Permit, the AutoCAD drawing shall be provided with the as-built coordinate data on a separate layer, legible and scaled to match the scale of the Construction Plan drawings, such that the data can be directly inserted into the original Improvement Plan drawing for the purposes of generating a final record drawing acceptable to the City of Tucson.

J. Submit survey information for items listed above to the OWNER before the items are covered.

K. Provide surveys to measure the following items:

1. Volume of Excavation

2. Volume of Engineered Fill

3. Volume of Unsuitable Material removed from the Cell 4B area below the design subgrade and replaced with Engineered Fill

4. Volume of General Fill

5. Volume of Channel Berm Fill

6. Area of Liner Subgrade Preparation

7. Area of Channel Berm Subgrade Preparation

8. Volume of Operations Layer placement

9. Length of Anchor Trench

10. Length of Liner Termination

11. Area of GCL and Geomembrane Liner placement. Area will be to the hinge point/limit of waste as shown on the drawings only and will not include the material in the run-out or anchor trench itself.

12. Length of Leachate Collection Drain, for each diameter and material

13. Length of Culverts, for each location

14. Area of Rip Rap Placement

SECTION 01200

PROJECT MEETINGS

1.1 REQUIREMENTS INCLUDED

A. Representatives of CONTRACTOR, subcontractors and suppliers attending meetings must be authorized to act on behalf of organizations they represent.

1.2 PRE-CONSTRUCTION MEETING

A. Meeting will be held at a location selected by OWNER.

B. Attendance:

1. CONTRACTOR's Office Representative

2. CONTRACTOR's On-Site Field Superintendent

3. Any Subcontractors or Supplier's representatives whom CONTRACTOR may desire to invite or OWNER may request

4. ENGINEER's Representatives

5. OWNER's Representatives including the Design Engineer and CQA Personnel

C. A suggested format would include, but not be limited to, the following subjects:

1. Presentation of a proposed construction progress schedule and submittals as required by the Contract Documents

2. Required bonds and insurance certifications prior to Notice to Proceed

3. Liquidated Damages

4. Procedures for handling submittals

5. Direction of correspondence, and coordinating responsibility between CONTRACTOR and OWNER

6. Request or scheduling of a weekly job meeting for all involved

7. Laboratory testing of construction materials

8. Applications for payment, and progress payment procedures

9. Change Order procedures

10. OWNER's site regulations

D. The meeting will be documented by the OWNER or person designated by the OWNER. Copies of the minutes and relevant documents will be provided to all parties.

1.3 WEEKLY PROGRESS MEETINGS

A. OWNER’S Representative will schedule and administer progress meetings at minimum of once per week and such additional meetings as required, or as requested by OWNER.

B. Attendance:

1. OWNER’S Representative

2. ENGINEER, if requested by OWNER’S Representative

3. CQA Officer

4. CONTRACTOR's superintendent

5. Subcontractors as appropriate to agenda

6. Suppliers as appropriate to agenda

C. Meeting requirements:

1. OWNER’S Representative will administer the following general requirements for progress meetings:

a. Prepare agenda for meetings

b. Make physical arrangements for meetings

c. Preside at meetings

d. Record significant proceedings and decisions of the meeting

e. Reproduce and distribute copies of meeting record within seven days…