C04 Attachment 4 Technical Specifications CNF_Flagstaff_WW_Specs_8.15.24.pdf

August 2024

Technical Specifications

Flagstaff Ranger Station Wastewater System Improvements

US Forest Service Region Three

Prepared by:

Set No.: ____________

Project #1-22139

TECHNICAL SPECIFICATIONS

AUGUST 2024

FLAGSTAFF RANGER STATION

WASTEWATER SYSTEM IMPROVEMENTS

U.S.D.A Forest Service Region Three Coconino National Forest Flagstaff Ranger District

Coconino County, Arizona

100% SUBMITTAL

Prepared by:

Dan Baum

QAQC by:

Amy Deitchler, PE

TABLE OF CONTENTS

DIVISION 0

Section Title 00910 Special Provisions

DIVISION 1 – GENERAL REQUIREMENTS

01010 Summary of Work 01275 Measurement and Payment (Wastewater) 01330 Submittals 01410 Regulatory Requirements 01420 References 01430 Quality Assurance 01450 Quality Control 01500 Temporary Facilities and Controls 01660 Product Storage and Handling Requirements 01700 Contract Closeout 01712 Field Engineering 01730 Execution Requirements 01740 Cleaning and Waste Management 01770 Closeout Procedures

DIVISION 2 – SITE CONSTRUCTION

02221 Trench Excavation and Backfill for Pipelines & Appurtenant Structures 02232 Site Clearing 02300 Earthwork 02730 Sanitary Sewer Collection Systems 02910 Seeding 02953 Television Inspection 02954 Sewer Line and Manhole Cleaning

DIVISION 3 – CONCRETE

03100 Concrete Formwork 03200 Reinforcement Steel 03290 Joints in Concrete 03300 Cast-in-Place Concrete 03315 Grout

DIVISION C – SPECIAL CONTENT

000001 Description/ Specification/ Statement of Work 010100 High-Pressure Gas Line Crossing 010250 Construction Survey and Staking 011900 Mobilization

023701 Sediment and Erosion Control Measures 024100 Waste Material Disposal 060101 Flowable Fill 312225 Excavation & Embankment 321216 Asphalt Pavement 321313 Concrete Paving 321373 Concrete Paving Joint Sealants 321613 Concrete Curb and Gutter 321623 Concrete Sidewalk and Steps 322640 Pavement Marking 340100 Maintenance of Traffic

Appendix

A Flagstaff RS Wastewater Geotechnical Report

SPECIAL PROVISIONS

SECTION 00910

SP-01 INCORPORATION OF THE MARICOPA ASSOCIATION OF GOVERNMENTS

UNIFORM STANDARD SPECIFICATIONS AND STANDARD DETAILS FOR

PUBLIC WORKS CONSTRUCTION (MAG)

SP-02 INCORPORATION OF THE CITY OF FLAGSTAFF MUNICIPAL CODE

SP-03 SUBSURFACE AND PHYSICAL CONDITIONS

SP-04 GEOTECHNICAL SITE CONDITIONS

SP-05 SPOIL

SP-06 BEST MANAGEMENT PRACTICES

SP-07 WATER FOR CONSTRUCTION

SP-08 SITE RESTORATION

SP-09 PRIVATE ACCESS

SP-10 SEWER MAIN LANDSCAPED AREAS

SP-11 STAGING AREA

SP-12 CONFLICTS WITH UTILITIES

SP-13 SEWER AND WATER MAIN CORSSINGS LESS THAN 24”

SP-14 DEWATERING

SP-15 QUALITY CONTROL TESTING OF SOIL, CONCRETE AND ASPHALT

MATERIALS

SP-16 CONSTRUCTION STAKING

SP-17 PERMITS

SP-18 EASEMENTS, CONSTRUCTION LIMITS, AND RIGHT-OF-WAY

SP-19 WINTER SHUTDOWN

SP-20 WORK WITHIN CITY OF FLAGSTAFF RIGHT-OF-WAY

SP-21 WORKING HOURS

SP-22 CONTRACTOR EMERGENCY CONTACT

SP-23 SEEDING

SP-24 FIELD OFFICES

SP-25 TRACER WIRE

SP-26 DETECTABLE WARNING TAPE

SP-27 PROGRESS MEETINGS

SP-28 SERVICE REQUIREMENTS

SP-29 TRAFFIC CONTROL

SP-30 ABANDON SEPTIC TANK IN PLACE

SP-31 PREINSTALLATION CONFERENCE

SP-32 SEWER SERVICE INSTALLATION

SP-33 SEWER SURFACE RESTORATION

SP-34 VISUAL COMPLETION OF SERVICE CONNECTION

SP-01 INCORPORATION OF THE MARICOPA ASSOCIATION OF GOVERNMENTS

UNIFORM STANDARD SPECIFICATIONS AND STANDARD DETAILS FOR

PUBLIC WORKS CONSTRUCTION (MAG)

All provisions of the MARICOPA ASSOCIATION OF GOVERNMENTS (MAG) Standard Specifications, 2024 Revision to the 2020 Edition, hereafter collectively referred to as MAG, apply to the project, except where portions of MAG are modified or replaced by the Contract Documents. The entire Section from the MAG has not been rewritten for these modifications. Instead, modifications are indicted for a specific subsection, paragraph, sentence or drawing.

Where a modification to MAG does not exist for a particular Section of MAG it shall be assumed the work is to be completed in accordance with the appropriate MAG Section. When a modification to MAG does exist the requirements of that modification supersede the related MAG requirement. Where paragraphs are specifically deleted or modified, or new paragraphs added, all other parts of MAG will remain in effect unless otherwise modified by the Project Manual in accordance with the order of governance as specified in “Summary of Work”. Forms included in the Project Manual will be used in lieu of similarly titled forms in MAG. Where Technical Specifications follow the modifications in later divisions of the Project Manual, those specifications replace same numbered specifications in MAG.

Delete MEASUREMENT AND PAYMENT in all sections of MAG. Bid Form. If an item is listed as a Bid Item, administrative and procedural requirements will be listed in Section 01275: Measurement and Payment. If an item is not listed as a Bid Item, the item is not required or is considered an incidental cost to other Bid Items.

SP-02 INCORPORATION OF THE CITY OF FLAGSTAFF MUNICIPAL CODE

All provisions of Title 13 Engineering Design Standards and Specifications for New Infrastructure of the City of Flagstaff Municipal Code shall take precedence over the latest revisions of MAG Specs and Details and over ADEQ criteria. The more restrictive criteria of design and construction stated in these regulations apply to the project, except where portions of MAG are modified or replaced by the Contract Documents. The entire Section from MAG has not been rewritten for these modifications. Instead, modifications are indicted for a specific subsection, paragraph, sentence or drawing. Chapter 13-21 lists the revisions to MAG Specs and Details and indicates the section of MAG Specs and details on which the change is made.

SP-03 SUBSURFACE AND PHYSICAL CONDITIONS

In the preparation of Drawings and Specifications, the USFS Consultants relied upon the following reports of exploration and tests of subsurface conditions at the Site:

1. Geotechnical Evaluation Report, Flagstaff Ranger Station Wastewater Improvements, prepared by Western Technologies, In the preparation of Drawings and Specifications, the USFS Consultants relied upon the following drawings of physical conditions in or relating to existing surface and subsurface structures (except Underground Facilities) which are at or contiguous to the Site:

1. Flagstaff- Elden Ranger Station, Flagstaff Arizona, Administrative Plan, prepared by Spartan Technologies, 1987

These reports and drawings are not part of the Contract Documents, but the “technical data” contained therein upon which the Contractor may rely as identified and the above are incorporated therein by reference. Contractor is not entitled to rely upon other information and data utilized by USFS Consultants in the preparation of Drawings and Specifications.

SP-04 GEOTECHNICAL SITE CONDITIONS

Contractor shall familiarize themselves with the Geotechnical Report contained in the Appendix of the project manual and construct the project per the recommendations contained therein.

SP-05 SPOIL

Unless otherwise indicated on the Drawings or elsewhere in these specifications, place spoil in the confines of the existing easements or right-of-ways. In areas where confines limit the placement of spoil, the Contractor may have to haul the spoil out of the area until they are ready to backfill. The locations of spoil placement will be discussed at the preconstruction conference and will be subject to approval by the CO. The Contractor will be responsible for the disposal of all excess spoil.

No additional payment will be allowed the Contractor for this work. Refer to Section 01275:

Measurement and Payment for more information.

SP-06 BEST MANAGEMENT PRACTICES

Dust Control – Dust control is to be considered an integral part of the Work. Dust Control shall be provided from the start of construction until the Work is complete. Fugitive dust as a result of construction shall be controlled at all times within the subject property. The Contractor shall have a water truck available for dust control prior to beginning any construction tasks. Wetting shall be done a minimum of twice per day in dry conditions or at the direction of the Government as required until the final construction activities are completed. Contractor shall be prepared to provide dust control until the final surface restoration is completed. All costs incurred to meet dust control requirements are incidental to other items of the contract and no separate payment shall be made.

Road and Parking Lot Cleaning – It shall be the sole responsibility of the Contractor to keep all roads and parking lots free from mud, gravel, cobbles or other contaminants generated as a result of construction activities. It shall be the responsibility of the contractor clean all foreign matter from roads and parking areas in a reasonable amount of time as determined by the Government. All costs incurred to meet road and parking lot cleaning requirements are incidental to other items of the contract and no separate payment shall be made.

Erosion Control Measures – Temporary erosion and sediment control measures includes the installation and maintenance of temporary structural control measures to reduce or eliminate the erosion of soil and transport of sediment offsite as result of construction activities. This may include, but not be limited to, silt fences, ditch checks, sediment basins, erosion control mats, stabilized construction entrance, temporary diversions, inlet protection, sediment traps, and slope drains. If erosion control measures are required, it shall be the responsibility of the contractor to install and maintain them throughout the construction.

Failure to Provide Service – If the Contractor fails to provide adequate service on the above listed items, the Government reserves the right to contract these activities to a third party, the cost of which will be deducted from the contract amount at the time of the next pay request.

SP-07 WATER FOR CONSTRUCTION

The Contractor may obtain water for construction purposes from the Flagstaff Ranger Station at no charge at discretion of the COR. All water used must be metered, recorded and this information provided to the Government upon project completion. The water will be made available from the metered fire hydrants as directed by the COR. The Contractor may operate the metered fire hydrants, however any damage sustained from the usage will be the responsibility of the Contractor to repair. The Contractor is responsible for providing all required fittings, meters, hoses, backflow assemblies, valves and other appurtenances required for obtaining water for construction from the COR.

Contractors permitted to use a metered fire hydrant need to know and understand proper metered fire hydrant operation procedures as they are the party ultimately responsible for improper hydrant connections or any other improper operation of a metered fire hydrant. The contractor is responsible to teach proper operation procedures to all employees using metered fire hydrants. This includes water truck drivers or any other employees of the company that operate metered fire hydrants for any reason.

Meter Hydrant Connection Procedures

1. Perform a safety check of the hydrant. Check the hydrant visually, and shake the hydrant with your hands to make sure it is rigid (do not use a movable hydrant – they are dangerous and serious injury to the operator may result). Check the hydrant to ensure the caps are tight.

2. Remove hydrant nozzle cap.

3. Attach metering device and hose and install brace support. All hydrant connections must include a RPZ backflow assembly or device acceptable to the Government at all times.

4. Open hydrant slowly. It should take more than 60 seconds to fully open to prevent surging on the water system. Open completely to shut off drip drain while hydrant is in use. Valves downstream of the hydrant shall not be used to control flow.

5. They discharge end of the hose should not be inserted under any circumstances, into a tank or container underwater or laid on the ground to make and lay in its own pool of water. There must be at all time an air gap between the end of the water hose and the container.

6. Upon filling the tank or upon completion of the permitted use, slowly close hydrant valve.

7. Remove hose

8. Replace nozzle cap and tighten securely.

9. No hydrant shall ever be left without the cap replaced and securely tightened.

The use of fire hydrants for construction water needs is a privilege, and the COR will not tolerate abuse of this privilege. This includes illegal connections, water theft, vandalism, tampering, failing to replace caps, or damage caused by neglect.

SP-08 SITE RESTORATION

Site Restoration is an important part of this project. Site Restoration is replacement or reconstruction of site improvements to rights-of-way, easements, public property, and private property that are affected or altered by construction operations, with improvements restored to condition which is equal to, or better than, that which existed prior to construction operations. These Site Restoration items include but are not limited to; concrete curb and gutter replacement, sidewalk replacement, concrete surfaces, asphalt replacement, gravel restoration, seeding, sod, and irrigation system repair.

Initial restoration (rough grading, temporary aggregate if necessary, removal of excess excavated material and debris) shall be done each day to the extent necessary to allow the movement of local traffic and permit access to all areas for emergency vehicles. Maintenance of streets, drives, sidewalks, etc. shall be the responsibility of the Contractor (including dust control, grading, stabilization, etc.) until the restoration is complete and has been accepted by the Government. Restoration of each street or section of utility line shall follow the construction in a timely fashion so as to minimize inconvenience to the COR and the general public. The manner in which this restoration is done by the Contractor will be a determining factor in the approval of partial payment requests.

After utility work is completed on underground utilities and submitted on monthly estimate for payment, complete site restoration for those utility segments before next monthly estimate for payment is submitted, unless extended in writing by Government and CO. If site restoration is not completed, the Contractor’s partial payment request may be denied or additional retainage may be withheld.

For utility work requiring testing or post-installation TV inspection, completion of segment is not considered to include testing or TV inspection. Schedule for completion of site restoration is not determined by completion of testing or TV inspection.

SP-09 PRIVATE ACCESS

At all times during construction, afford property Governments access to their property to the highest degree possible. Ensure that businesses will have at least one approach open at all times, if possible, and open closed-off approaches as quickly as possible.

SP-10 SEWER MAIN LANDSCAPED AREAS

Repair any landscaped or vegetated areas on private or public land that are scarred or damaged during construction to an equal or better condition than that prior to the start of construction. This will include removing, replacing, and grading topsoil. Replace all landscaped and/or grass areas disturbed during the construction process with a minimum 6-inches of topsoil. Reseed all disturbed areas, private or public, unless otherwise indicated.

No additional payment will be allowed to the Contractor for this work if outside the pay limits depicted in the restoration details or detail in Section 01275: Measurement and Payment.

SP-11 STAGING AREA

Staging areas have been provided as shown on Sheet 4 of the drawings. Take care to protect, preserve and/or replace objects and structures encountered within the confines of the staging areas and restore all disturbed areas as close as possible to original condition as possible unless otherwise dictated in these specifications.

Storage of construction materials, equipment, and other items pertinent to the construction of the project will be allowed in the staging areas. However, bulk storage of petroleum based products stored in tanks will not be allowed. At all times, spill kits must be available on-site for any accidental spills of petroleum.

No payment will be allowed to the Contractor for any work, including restoration, with regards to the staging areas.

SP-12 CONFLICTS WITH UTILITIES

As shown on the Drawings, utilities may be in conflict with certain areas of the project. Utilities and other appurtenances may include but are not limited to the following: culverts; propane or gas mains and services; television cables; telephone lines and pedestals; electrical boxes and lines; street lights;

telephone and power poles; water mains and services; sanitary sewer mains and services; and storm drain pipes and inlets.

Utility locations are based on the available information which has been provided to or discovered by the CO. There is no guarantee as to the accuracy and completeness thereof is expressly disclaimed. The Contractor must check with the Utilities Underground Location Center (800-782-5348) at least two full working days in advance of the planned work date so that all utilities are located prior to digging.

The Contractor shall coordinate work with all utility companies or private entities that may be affected by the project. For utilities shown on the Drawings, the Contractor shall be responsible for any charges associated with relocating, removing, replacing, crossing, working around, or supporting utilities or otherwise addressing utility conflicts as necessary to conduct construction operations and properly construct the project. The Contractor shall also be solely responsible for any damage to these utilities due to their operations. The Contractor shall work closely with the utilities to ensure their criteria are met and no problems result. For underground utilities not shown on the Drawings, the Contractor shall follow procedures of Underground Facilities of the General Conditions.

Unless identified as a bid item in the Bid Form, no separate payment will be made for this work, and the Contractor shall figure the cost of such work into other applicable bid items.

SP-13 SEWER AND WATER MAIN CORSSINGS LESS THAN 24”

Where there is not 24” minimum separation between water and sanitary sewer main, the Contractor is to center one standard length of new sanitary sewer main over the water crossing and encase the new sanitary sewer main in a minimum of 6” of flowable fill for a minimum of 10 feet on either side of the existing water crossing. Additionally, the crossing must have a 6” minimum vertical separation between water and sewer mains. Sears at the crossing must be constructed with slip-on or mechanical joint pipe complying with public water supply design standards and be pressure tested to 150 psi to assure watertightness. At crossings, one standard length of new pipe must be centered at approximately a 90-degree angle in respect to the existing pipe.

SP-14 DEWATERING

The Contractor will be responsible for any dewatering operations which may be necessary to adequately remove water such that construction activities can be completed as specified. The Contractor will be responsible for conveyance and disposal of water to surface watercourses. Make all necessary arrangements for infringements across private property and obtain and adhere to any necessary discharge permits from the City of Flagstaff and ADEQ.

SP-15 QUALITY CONTROL TESTING OF SOIL, CONCRETE AND ASPHALT

MATERIALS

This Special Provision only applies to soil and asphalt materials. Refer to other applicable sections of the specifications for quality control testing requirements of other materials.

Complete testing of all components of the project will be required to the satisfaction of the Government.

The Contractor is solely responsible for quality control (QC) testing.

The following table outlines the minimum frequency of quality control testing. All testing is the responsibility of the Contractor and must be conducted by an approved, certified testing laboratory or individual.

Contractor must remedy all defects and performance problems revealed by the testing to the satisfaction of the Government at no additional expense to the Government. The Government may conduct quality assurance testing in addition to the Contractor’s quality control testing, and in the case of a conflict between quality control and quality assurance testing, the quality assurance testing will govern.

Minimum Quality Control Testing Frequency Table

SECTION ITEM DESCRIPTION TEST OR SUBMITTAL FREQUENCY

TRENCH BACKFILL

02221 Type ‘A’ Trench Backfill Field Density/Moisture Content 1 test / 200 LF / lift

02221 Type ‘B’ Trench Backfill Field Density/Moisture Content 1 test / 300 LF / lift

02221 Type ‘C’ Trench Backfill Field Density/Moisture Content 1 test / 400 LF / lift

STREET, URBAN TRAIL, SIDEWALK, AND CURB AND GUTTER BACKFILL

02230 Subgrade Preparation Field Density/Moisture Content 1 test / 5,000 SF / lift

02230 Embankment Placement Field Density/Moisture Content 1 test / 5,000 SF / lift

02230 Subexcavation Replacement Field Density/Moisture Content 1 test / 5,000 SF / lift

02234 Sub-Base Course(s) Field Density/Moisture Content 1 test / 2,500 SF / lift

02235 Base Course(s) Field Density/Moisture Content 1 test / 2,000 SF / lift

MISCELLANEOUS BACKFILL

02300 Select Fill/Structural Fill Field Density/Moisture Content 1 test / 1,000 SF / lift

02300 Drainage Course Field Density/Moisture Content 1 test / 1,000 SF / lift

02300 Filter Material Field Density/Moisture Content 1 test / 200 LF / lift

ASPHALT (PLANT MIX BITUMINOUS SURFACE)

02510 Asphalt Concrete Pavement Field Density 1 test / roller pass

02510 Asphalt Concrete Pavement Field Thickness 1 test / 3,000 SF

02510 Asphalt Concrete Pavement In-Place Density and Thickness 1 core / 500 ton

CONCRETE (SURFACE)

321623, 332228 Concrete Field Strength

1 sample / 150 cubic yards, or 5,000 square feet of surface area

321623, 332228 Concrete Compressive Strength

Cylinders should be tested for compressive strength at 7, 14, and 28 days, with two cylinders tested at each interval and one reserved for additional testing.

SP-16 CONSTRUCTION STAKING

The Contractor will be responsible for construction staking. The Government will supply files needed for the construction staking.

This item covers survey work required to set specific horizontal and vertical stringlines, stakes, and/or bluetops to ensure location specific compliance with the Plans and Specifications for each stage of construction. Contractor is responsible for the preservation of said stringlines, stakes, and/or bluetops until such time that they are no longer required for construction activities. Contractor is responsible for coordination efforts which will limit the amount of exposure to said stringlines, stakes, and/or bluetops.

The Contractor will not be reimbursed for any additional survey work, including rental late fees or additional rental time that is required due to sequence of operations, operator error, or negligence. This item includes all labor, equipment (including rental fees), supplies, and incidentals associated with this work. Consider all costs associated with this provision incidental to performance of the work. Include the cost in the cost of other items.

SP-17 PERMITS

The Government will obtain the following permits at no expense to the Contractor. The Contractor will be required to carry out all provisions of these permits as part of this contract.

1. City of Flagstaff – Approval to Construct, Engineering Review, and Capacity Assurance forms.

2. Arizona Department of Environmental Quality Approval to Construct, an Engineering Review.

3. U.S. Army Corps of Engineers – Federal Clean Water Act (404 Permit).

4. Any Other Applicable Permits

The Contractor is responsible for obtaining all necessary permits, licenses, agreements, insurance, and approvals required by any government authority or agency for the performance of this work at his own expense. Government will allow Contractor access, as appropriate and necessary, for obtaining data in regard to permits and, at its own discretion, may assist Contractor, when necessary, in obtaining such permits. These Permits may include but are not limited to the following:

1. Storm Water Discharge Permit. The work requires a General Permit for Storm Water Discharges Associated with Construction Activities, and all discharges must be in accordance with the submitted Storm Water Pollution Prevention Plan (SWPPP). The Contractor is responsible for preparing and signing a SWPPP and submitting a complete Notice of Intent (NOI) package to the Arizona Department of Environmental Quality.

The Contractor will be responsible for all fees associated with the permit application.

Implement and comply with the provisions of the NOI and SWPPP and the cost of this item will be distributed throughout the contract price. If the Contractor elects not to carry out the provisions of the NOI and SWPPP, then the Contractor shall be responsible for any damages or fines the City of Flagstaff and the State of Arizona may assess for non-compliance. At the end of the project, the Contractor will be responsible for submitting and signing a completed Notice of Terminations (NOT) form to the Department of Environmental Quality. The Contractor will be responsible for paying annual SWPPP permit renewal fees until the NOT is issued.

SP-18 EASEMENTS, CONSTRUCTION LIMITS, AND RIGHT-OF-WAY

Conduct construction operations within the easement, construction limits, and right-of-way limits. Obtain written permission from the adjoining private land Government prior to conducting any operations off the allowed easement. Take care to protect, preserve and/or replace objects and structures encountered within the confines of the easements and restore all disturbed areas restored to the original condition unless otherwise dictated in these specifications.

SP-19 WINTER SHUTDOWN

A shutdown due to inclement weather during the winter months may be requested by the Contractor.

Indicate the number of calendar days being requested in the original shutdown request. This initial request may be extended during the shutdown period as long as such extension is justifiable and requested at least 14 days prior to the date the original extension was to elapse. Any extension of shutdown will require the Contractor to demonstrate that adequate operations can be maintained throughout the extended period.

Shutdown extensions may require operation modifications and approval of the City of Flagstaff and ADEQ. Only one winter shutdown will be granted during the project.

The Government reserves the right to approve or disapprove any shutdown or extension requests. As a condition of approval of a shutdown, close all open excavations, provide for maintaining traffic, and provide for protection of public property at the work site. The Contractor will not be allowed to perform any work during the shutdown period unless prior approval is granted by the Government.

SP-20 WORK WITHIN CITY OF FLAGSTAFF RIGHT-OF-WAY

Sanitary sewer main installation will occur within City of Flagstaff right of way. Contractor shall complete all work and site restoration in City of Flagstaff right of way according to Title 13 of City of Flagstaff Municipal code including but not limited to flowable fill at utility crossings and pavement replacement. Contractor is responsible for providing City of Flagstaff approved traffic control plan for work occurring in City of Flagstaff right of way. This is paid for under Bid Item 01500-1.

SP-21 WORKING HOURS

Regular working hours are defined as an eight-hour period (plus 1 hour lunch allotment) within the bounds of 7:00 AM and 7:00 PM. Work during other hours may be permitted following written approval of the COR. Contractor shall provide the GOVERNMENT a request at least three (3) working days prior to working other hours, or in excess of 8 hours per day. GOVERNMENT shall provide a response to the request within 24 hours of receipt. Emergency work may be done without prior permission.

SP-22 CONTRACTOR EMERGENCY CONTACT

Provide a primary and secondary 24-hour, 7-day a week emergency contact.

SP-23 SEEDING

Furnish a dry land pasture seed mixture and approved fertilizer to be placed in all disturbed areas (not including landscaped areas in the community), containing Arizona fescue (2 lbs/acre), Squirreltail (2 lbs/acre), Western wheatgrass (1 lb/acre), Blue grama (1 lb/acre), Mountain muhly (1 lb/acre), Beebalm (0.5 lb/acre), and Lupine (0.5 lb/acre). Alternate mixes may be used, with CO’s approval.

Sow seed in the areas described in the Contract Documents at the rate of 15 pounds per acre on a “pure live seed” basis. The necessary bulk seed can be calculated by:

Necessary Bulk Seed = Total Pounds (kg) Pure Live Seed Required

(% Germination) x (% Purity)

SP-24 FIELD OFFICES

Maintain a suitable field office at the site or off site, which will serve as headquarters for the project Superintendent. All communications, drawings, instructions, and other articles will be delivered to the Contractor’s field office or to the Contractor’s main office as appropriate. Communications delivered to either location will be deemed to have been delivered to the Contractor.

Maintain copies of record drawings, specifications, shop drawings, submittals, and all communications pertinent to the performance of the work at the field office and make them available to the Government or COR for use at all times.

The field office shall be weathertight, heated field office for use as a common facility by all personnel engaged in construction activities; of sufficient size to accommodate required office personnel and meetings of at Project site. Keep office clean and orderly. Furnish and equip offices as follows:

• Desk and four chairs, four-drawer file cabinet, a plan table, a plan rack, and bookcase.

• Furnish room with desk, work table, two chairs, plan rack, and locking storage for surveying equipment.

• The Contractor shall pay all electrical and heating bills.

• Provide an electric heater and air conditioner with thermostat capable of maintaining a uniform indoor temperature of 68 deg F.

• Provide fluorescent light fixtures capable of maintaining average illumination of 20 fc at desk height.

• Provide two 110- to 120-V duplex outlets.

All electrical and heating bills for the field office are the responsibility of the contractor. No separate payment will be made for field offices. The cost of field offices will be included in the mobilization Bid Item for the base bid.

SP-25 TRACER WIRE

A tracer wire shall be installed on all sanitary sewer mains and on all sewer services within City of Flagstaff right of way. The tracer wire shall be taped to the top of sanitary sewer mains with ten (10) mil tape and shall be plastic covered No. 12 AWG type UF 600V. Plastic cover for tracer wires shall be green for sanitary sewer lines. All tracer wire splices shall be carefully soldered and wrapped. Wires are to be wrapped with Scotch 3M electrical tape and inserted into a direct burial splice, use Scotch 3M DBR-6 or equivalent. No splices will be allowed for wire lengths less than 500 feet.

A tracer wire connection station shall be installed for each 500 linear feet of sanitary sewer main as shown on the contract drawings. Tracer wire stations for sewers shall be located in conjunction with sewer services as shown on the contract drawings. Eight feet of tracer wire shall be loosely coiled inside a separate cast iron valve box top section without a valve. An approved type, 5lb magnesium anode shall be placed at a tracer wire connection station under the valve box for each 1,000 linear feet of tracer wire.

All tracer wire shall be successfully tested by the Contractor in the presence of the CO/COR. Contractor shall notify the GOVERNMENT three (3) working days in advance of the testing. The City of Flagstaff shall observe the tests of all tracer wire performed by the Contractor prior to paving and acceptance by the City to show that all sanitary sewer mains and services can be located by this means. These tests shall be witnessed by the City of Flagstaff. The City of Flagstaff shall be provided all information necessary to "as-built" the location of all tracer wire, anodes, and connection stations.

No separate payment will be made for this work. The cost of furnishing and installing the tracer wire system shall be incidental to the other appropriate bid items. See Section 01275: Measurement and Payment for more information.

SP-26 DETECTABLE WARNING TAPE

Six inch wide detectable warning tape will be installed on all new pipes and shall be 12 inches to 24 inches below finished grade. The detectable warning tape for sanitary sewer mains shall be green. The tape shall be permanently printed at least every thirty-six (36) inches with "BURIED SEWER LINE BELOW" for sewer mains.

The cost of furnishing and installing the detectable warning tape shall be incidental to the other appropriate bid items. See Section 01275: Measurement and Payment and the Drawings for more information. The warning tape must be installed as a condition for approval for payment for the related bid item. Warning tape for gravity sewer main, forcemain, and all service lines shall read “sewer”.

SP-27 PROGRESS MEETINGS

The GOVERNMENT will schedule and conduct progress meetings at regular intervals to discuss the status of the project. The meetings will be conducted at the project site, unless otherwise indicated. The GOVERNMENT will prepare the meeting agenda and will distribute the agenda to all invited attendees.

In addition to representatives of Government, each contractor, subcontractor, supplier, and other entity concerned with current progress or involved in planning, coordination, or performance of future activities shall be represented at these meetings. All participants at the conference shall be familiar with Project and authorized to conclude matters relating to the Work.

GOVERNMENT shall record significant discussions and agreements achieved and shall distribute the meeting minutes to everyone concerned within 7 calendar days of the meeting.

SP-28 SERVICE REQUIREMENTS

Maintain wastewater flows throughout the project, which may require temporary bypass pumping.

Maintain service to existing service connections throughout construction, except that service connections may be taken out of service one time for a period of up to 8 hours for installation of new sewer services or service connections to new mainlines. Provide the Government with a written 24 hour notice before disrupting service.

Do not interrupt water service except as approved by the Government.

Existing septic systems (septic tanks, cesspools, drywells, etc.) cannot and shall not be abandoned until the sewer service connection is made, tested, and accepted.

The Contractor will be responsible for any damage that occurs to the Government and/or customers on the system due to interruption of service. No additional compensation shall be allowed for installation of any measures required to continue service. These costs shall be distributed within appropriate Bid Items in the contract.

SP-29 TRAFFIC CONTROL

Adhere to all traffic control requirements as set forth in the Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), latest edition, published by the U.S. Department of Transportation, Federal Highway Administration. Coordinate with the Government and City of Flagstaff to schedule road closures and/or detours and conduct construction activities so as not to interfere with the traffic control.

SP-30 ABANDON SEPTIC TANK IN PLACE

Once a property is connected to sewer, existing septic tanks, seepage pits and cesspools must be located, pumped and abandoned in accordance with A.A.C. R-18-9-A309(D) and the Coconino County Health Code. The septic shall be pumped out and disposed of by an ADEQ licensed sewage disposal provider.

The license shall be provided to the COR prior to commencing of any pumping. A copy of all pumping receipts shall be submitted to the CO. Abandoning the septic tank shall include the following actions:

1. Disconnect and remove electrical and mechanical components;

2. Pumping of existing septic tanks.

3. Remove or collapse the top of any tank or containment structure.

4. Punch a hole in the bottom of the tank or containment structure if the bottom is below the seasonal high groundwater table;

5. Fill the tank or containment structure or any cavity resulting from its removal with earth, sand, gravel, concrete, or other approved material; and

6. Regrade the surface to provide drainage away from the closed area;

7. Cut and plug both ends of the abandoned sewer drain pipe between the building and the on-site wastewater treatment facility not more than 5 feet outside the building foundation if practical, or cut and plug as close to each end as possible; and

8. Notify the Arizona Department of Environmental Quality within 30 days of closure.

SP-31 PREINSTALLATION CONFERENCE

A pre-installation conference/meeting is required prior to each major work item being performed. Work items that will require a conference include but are not limited to start of pipe work and start of sewer service work. The GOVERNMENT may request a pre-installation conference for any item of work associated with the project.

SP-32 SEWER SERVICE INSTALLATION

All sewer service lines from gravity mains shall be 4-inch PVC piping as shown on the drawings from the main line to the edge of the right-of-way regardless of the service connection requiring a grinder pump.

The connection will be made using an “Inserta Tee®” fitting manufactured by Advanced Drainage Systems or approved equal. Sewer saddles will not be accepted as an alternate product.

As part of the installation for each sewer service line, the Contractor is responsible to ensure that a minimum of 2% slope is feasible between the planned sewer main connection and service line connection before tapping the sewer main. If 2% is not possible at the proposed alignment, the Contractor shall notify the GOVERNMENT as soon as reasonably possible. The GOVERNMENT will coordinate with the Contractor to determine either a feasible location for tapping the sewer service or requiring the service to utilize a grinder pump.

If a minimum 2% grade cannot be met due to elevations, a grinder pump may be required. CO will work with the contractor if grinder pumps are necessary. The contractor will verify the power source if grinder pumps are needed.

SP-33 SEWER SURFACE RESTORATION

All sewer services will be backfilled to match the exiting conditions. A minim of 2-inches of topsoil shall be replaced under lawn, sod, seeding, or other landscaped areas and a minimum of 2-inches of crushed subbase under areas of concrete, asphalt, or other non-lawn landscaping elements. Trees, shrubs, sod, and other vegetation do not need to be replaced within 6 ft. either side of the centerline of the sewer service.

Gravel, asphalt, grass seed (on areas of existing grass), pavers, decorative rocks, wood chips, any damaged yard irrigation repairs, and other non-vegetation landscaping elements need to be replaced within 6 ft. either side of the centerline of the pipe.

SP-34 VISUAL COMPLETION OF SERVICE CONNECTION

The Contractor will be responsible for verifying that the service connection for each property has all plumbing, piping, and drainage fixtures connected. Acceptable methods include flushing dye or water down fixtures in a structure and visually confirming flow through a cleanout between the connection point at the sewer main. Other methods are acceptable with approval of the Government.

END OF SECTION

DIVISION 1

GENERAL REQUIREMENTS

SECTION 01110

SUMMARY OF WORK

SECTION 01110

SUMMARY OF WORK

PART 1- GENERAL

1.1 DESCRIPTION

A. In general, the Work under this Contract includes, but is not necessarily limited to, the following major items of work as shown on the plans and as specified. The following descriptions are provided as an outline of major work items and shall not be construed as an inclusive or complete listing of all items of Work under this Contract.

1. The project includes new sewer collection system includes connecting existing facilities, installing sewer mains and sewer manholes, and restoring surfaces to preconstruction conditions.

1.2 WORDING OF SPECIFICATIONS

A. Throughout these specifications the abbreviation CO shall mean "Contracting Officer”

B. Throughout these specifications the abbreviation COR shall mean "Contracting Officer Representative”

C. Throughout these specifications the abbreviation Government shall mean "Project Administrator or Owner”

D. Other reference standards are specified in Section 01420. The Contractor shall become thoroughly familiar with all reference specifications.

1.3 USE OF PREMISES

A. General: Contractor shall have full access to grounds for construction operations during construction period, and limited access to facilities. Contractor's use of premises is limited by the Government's right to perform work or to retain other contractors on portions of Project site. Building access shall be coordinated with CO.

B. Contractor shall conduct their operations to ensure the least inconvenience to the public and employees. Work is limited to the hours of 7am-7pm.

C. Notify Contracting Officer at least 72 hours prior to start of work. Provide 24-hours’ notice prior to any work occurring within buildings onsite.

D. Confine storage of equipment and materials to areas as approved by the CO.

E. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of work area.

SECTION 01110

SUMMARY OF WORK

F. Preservation of Natural Features: Confines all operations to work limits of the project.

Prevent damage to natural surroundings. Restore damaged areas, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval.

Consult with CO and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

G. Existing Utilities: Notify CO and utility companies of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. Call the Utilities Underground Location Center at 1-800-782-5348, at least 2 business days in advance of excavation for the marking of underground utilities. If damage occurs, repair utility at no additional expense to the Government.

2. Interruption of Existing Utility Service: Notify CO, 48 hours in advance of any interruption of existing utilities.

3. Water service interruption shall be minimized and approved by the Contracting Officer in the construction schedule.

1.4 CONSTRUCTION SEQUENCE

A. Contractor shall provide construction sequencing in the schedule that reduces service interruption to the existing facilities.

B. The Contractor may use water utilities available onsite through metered fire hydrants.

Power is not available for Contractor use during the project.

1.5 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering materials.

END SECTION

SECTION 01275

MEASUREMENT AND PAYMENT

SECTION 01275

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and Special Provisions of the Contract, including General and Supplementary Conditions and other Division 1- Division16 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes administrative and procedural requirements for measurement and payment.

1.3 DEFINITIONS

A. Unit price is an amount proposed by bidders, stated on the proposal costs/ quantites, as a price per unit of measurement for materials or services added to or deducted from the Contract Sum by appropriate modification, if estimated quantities of Work required by the Contract Documents are increased or decreased.

1.4 PROCEDURES

A. Unit prices include all necessary material, plus cost for delivery, installation, insurance, overhead, and profit.

B. Measurement and Payment: The Measurement and Payment sections do not necessarily name all incidental items required to complete the work. The cost of all such incidentals shall be included in the various related items of work. All estimated quantities stipulated in the Contract Documents are approximate and are to be used only as a basis for estimating the probable cost of the work and for the purpose of comparing the proposals submitted for the work. It is understood and agreed that the actual amounts of work performed, and materials furnished under unit price items may differ from such estimated quantities and the payment for such work and materials shall be based on the actual amount of work done and materials furnished in each case.

C. The GOVERNMENT will determine the actual quantities and classifications of Unit Price Work performed by the Contractor.

D. List of Bid Items: A list of unit Bid Items is included at the end of this Section.

Specification Sections referenced in the schedule contain requirements for materials described under each Bid Item.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

PART 4 - MEASUREMENT AND PAYMENT

4.1 LIST OF BID ITEMS

A. Bid Items No. 01330-1 – MOBILIZATION

1. Description: This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

2. Work Required: Work required under this section includes but is not limited to the following.

a. The movement of personnel, equipment, supplies and incidentals to the project site;

b. The establishment of all facilities necessary for the work on the project;

c. The costs of obtaining the required permits, bonds, and insurance; and

d. All other work and operations which must be performed, or costs incurred prior to beginning work on the various items of the project.

3. Unit of Measurement: Lump Sum

4. Measurement: Measurement for MOBILIZATION will be made as a percentage completed of the lump sum. 50% of the lump sum will be credited to the first progress payment, with the second 50% being credited to subsequent progress payments in proportion to total construction completed as a percentage of the contract unit price.

5. Payment: Payment for MOBILIZATION will be made at the contract unit price bid as a lump sum.

B. Bid Item No. 01172-1 – CONSTRUCTION SURVEY AND STAKING

1. Description: This item includes providing construction survey and staking necessary for construction of the project as shown in the Contract Documents.

2. Work Required: Work required under this section includes but is not limited to the following.

a. Provide personnel, equipment and supplies required for construction layout and reference staking necessary for the proper control and satisfactory completion of all structures, pipelines and other appurtenances required for the completion of the work and acceptance of the project;

b. All incidental materials, tools, equipment, and labor for the completion of this item.

3. Unit of Measurement: Lump Sum

4. Measurement: Measurement for CONSTRUCTION SURVEY AND STAKING will be made as a percentage completed of the lump sum. 50% of the lump sum will be credited to the first progress payment, with the second 50% being credited to subsequent progress payments in proportion to total construction completed as a percentage of the contract unit price.

5. Payment: Payment for CONSTRUCTION SURVEY AND STAKING will be made at the contract unit price bid as a lump sum.

C. Bid Items No. 340100-1– TRAFFIC CONTROL

1. Description: This item includes providing and maintaining all traffic control on the project as indicated on the Drawings and in the Contract Documents.

2. Work Required: Work required under this section includes but is not limited to the following.

a. Furnishing, installing, maintaining, replacing, and operating necessary construction traffic control devices throughout the work period;

b. Preparing and submitting the traffic control plan and making adjustments as required for final approval; and

c. All incidental materials, tools, equipment, and labor for the completion of this item.

3. Unit of Measurement: Lump Sum

4. Measurement: Measurement for TRAFFIC CONTROL will be made as a percentage completed of the lump sum. 50% of the lump sum will be credited to the first progress payment, with the second 50% being credited to subsequent progress payments in proportion to total construction completed as a percentage of the contract unit price.

5. Payment: Payment for TRAFFIC CONTROL will be made at the contract unit price bid as a lump sum.

D. Bid Item No. 023701-1 – SOIL EROSION AND POLLUTION CONTROL:

1. Description: Prior to the start of construction, the Contractor shall submit a written plan for review that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction.

When erosion control measures are not functioning as intended, immediately take corrective action.

2. Work required under this section shall include, but not be limited to the following:

a. Submit Erosion Control Plan;

b. Furnish and install of straw wattles (fiber rolls);

c. Furnish and install erosion control mats on slopes;

d. Temporary erosion control measures;

e. All labor, tools, equipment, materials, royalties and incidentals required to complete the work as specified.

3. Unit of Measurement: Lump Sum

4.…