250042-Sealed Specs R.pdf

MARICOPA COUNTY DEPARTMENT OF TRANSPORTATION

2901 WEST DURANGO STREET

PHOENIX, ARIZONA 85009

SPECIAL PROVISIONS

For

TONTO HILLS WATER LINE IMPROVEMENTS

MCDOT PROJECT NO. TT0752

MARCH 2025

TABLE OF CONTENTS

LOCATION OF THE WORK:

PROPOSED WORK:

CONTRACT TIME:

AVAILABLE INFORMATIONAL MATERIAL:

SECTION 104 SCOPE OF WORK

SECTION 105 CONTROL OF WORK

SECTION 107 LEGAL REGULATIONS AND RESPONSIBILITY TO PUBLIC

SECTION 111 ENGINEER’S OFFICE FACILITIES:

SECTION 201 CLEARING AND GRUBBING:

SECTION 330 ASPHALT CHIP SEAL

SECTION 350 REMOVAL OF EXISTING IMPROVEMENTS

SECTION 401 TRAFFIC CONTROL

SECTION 610 WATER LINE CONSTRUCTION

SECTION 716 COVER MATERIAL

APPENDIX A

APPENDIX B

TT0752 Tonto Hills Water Line Improvements 3

TONTO HILLS WATER LINE IMPROVEMENTS

MCDOT PROJECT NO. TT0752

LOCATION OF THE WORK: This project is located in within Maricopa County, Arizona within Township 1N and Range 5E and Sections 10 and 15 in the Community of Tonto Hills.

PROPOSED WORK: This project consists of furnishing all labor, equipment, and materials necessary to perform all operations required for installing new water lines throughout the Community of Tonto Hills and removing sections of the existing water lines as shown on the plans. Contractor is advised that the existing water lines to be removed include the following materials: ACP, DIP and PVC.

This project also consists of furnishing all labor, equipment, and materials necessary to perform all operations required for sealing the existing road surfaces with chip seal where water line work will occur. The project includes traffic control, clearing and grubbing when trenching will be done outside the limits of the existing chip sealed roadway and hydro-seeding these areas.

The Contractor is advised that three Approvals to Construct (ATC)s will be submitted and approved with ADEQ prior to start of construction based on the three construction phases shown on the plans.

The Contractor will be responsible for the submittal and approval of the three Approval Of Construction (AOC) based on the ADEQ requirements. The submittal of the three AOCs must be done through the ADEQ online portal (https://www.azdeq.gov/mydeq). The Contractor will be required to establish an account with ADEQ. It is highly recommended the Contractor review the ADEQ requirements for setting an account through the online portal as this process requires signature authorities and approvals.

The Contractor is advised that testing results of the new water lines must be reviewed and approved by ADEQ prior to these new lines being placed in service. The Contractor may be able to receive an expedited review and approval of the test results from ADEQ via email submittal while the corresponding AOC is being reviewed. However, there is no guarantee ADEQ will grant such approval. The Contractor shall assume that an AOC must be approved before the new water lines are active and in service.

The Contractor will be required to perform exploratory trenching to locate the existing water line segments to be removed. Once the locations of the water lines are identified and the locations of the new water lines to be installed are marked 5 feet away, the Contractor shall backfill and compact the exploratory trench with native material. Backfilling shall adhere to MAG requirements. The Contractor may use steel plates to cover locations where the new water line segments will tap the existing water lines. Exploratory trenching shall be paid for under Item

350.00990 Exploratory Trenching, Backfill and Compact and shall be paid for per linear foot.

The Contractor will be required to coordinate with Tonto Hills Domestic Water Improvement District (THDWID) to be granted access to submit the AOC on behalf of THDWID. All

TT0752 Tonto Hills Water Line Improvements 4 coordination with THDWID shall be the responsibility of the Contractor. The contact at THDWID is Mr. Jeff Frazey: jjfrazey@gmail.com.

In addition, all coordination with THDWID with regards to testing of the new water lines and service connection shall be the responsibility of the Contractor. The Contractor shall contact THDWID at least 72 hours in advance of any planned water service shutdown or service interruptions. Shutdowns shall not be longer than 4 hours.

The Contractor may develop a different phasing plan; however, the plan must be approved by the Engineer and Tonto Water Improvement District, and the Contractor shall be responsible to submit and get the approval for a new ATC from ADEQ. Construction duration may not be extended and the project schedule shall be maintained should the Contractor submit a new ATC.

The Contractor will be responsible for the submittal and approval of the Approval on Construction (AOC), once all requirements are met.

CONTRACT TIME: The Contractor shall complete all project work within 180 calendar days beginning with the start date specified in the Notice to Proceed.

AVAILABLE INFORMATIONAL MATERIAL: The following information is made available as an attachment to the solicitation for bids:

Geotechnical Report* Cross Sections

*Note: Soils information contained in the geotechnical report was obtained and used for design purposes. It is the responsibility of the Contractor to establish soils information for their bid and construction purposes.

SECTION 104 SCOPE OF WORK, add the following:

104.2.3 Due to extra work, shall be replaced with the following:

Repairs required due to unforeseen conditions not related to the Contractor’s operations shall be repaired by the Contractor as directed by the Engineer. Payment for Engineer Authorized Repairs shall be measured and paid per MAG 109.5, Actual Work Cost, through Item No.

109.5000 Engineer Authorized Repairs (Contingent Item). Written authorization from the Engineer is required prior to commencement of the work.

104.4 PARTNERING, add the following:

The County’s Partnering Program is designed to build the foundation of a cohesive partnership with MCDOT, the Contractor, MCDOT’s Consultant Construction Manager, subcontractors and Suppliers through identifying outcomes, setting goals and resolving disputes. This is accomplished through all project team members being committed to: building relationships upon mutual trust and teamwork; establishing and keeping open lines of communication;

performing their best on the job; being open minded to new best practices; empowering

TT0752 Tonto Hills Water Line Improvements 5 employees to solve issues at the lowest level; and maintaining cooperative working relationships to meet project goals.

To implement this, the Contractor’s management personnel, the County’s Resident Engineer, the Consultant Construction Manager, and the Partnering Representative will initiate a conference call to determine a Partnering Facilitator to lead the Construction Kickoff Workshop and other subsequent partnering meetings during the project. They will also determine workshop attendees, agenda specifics, duration, frequency of partnering meetings and locations. Persons required to be in attendance will be agreed upon in this conference call in accordance with MCDOT’s Partnering Program.

Since the Partnering Program provides benefits to both the County and the Contractor, the County will reimburse the Contractor for one half of the cost of the partnering charges, equally divided, based upon approved invoices and documented expenses to the Contractor in connection with the Item PARTNERING, in an amount not to exceed the ALLOWANCE shown in the Bidding Schedule. Expenses eligible for reimbursement are direct expenses incurred in providing facilities, facilitators, supplies, and materials for the Construction Kickoff workshop and other partnering meetings during the project. No labor costs or additional mark-up for profit and/or fee for the Contractor will be eligible for reimbursement.

The establishment of a partnering charter on the project will not change the legal relationship of the parties to the contract, nor relieve either party from any terms of the contract.

SECTION 105 CONTROL OF WORK

105.6 COOPERATION WITH UTILITIES, add the following:

The following utilities are expected to be located within the limits of this project. These utilities, along with the contact information, are listed below:

Utility Owner Type & Location of Utility

Contact Name Contact Phone Email ID

Arizona Public Service

Overhead Power lines

Bobby Garza 602.371.7989 Baldemar.garza@aps.com

CenturyLink Overhead and underground lines

Jason Jensen 801.735.2464 jjensen@terratechllc.net

Cox Underground Communication lines

Duane Mitry 623.328.4181 duane.mitry@cox.com

Domestic Water Improvement District

Water lines Jeff Frazey 480.595.0128 jjfrazey@gmail.com

Crown Castle Underground Fiber Julio Munoz 520.289.7688 Julio.Munoz@crowncastle.com

TT0752 Tonto Hills Water Line Improvements 6

The Contractor is advised that significant coordination will be required with Tonto Water Domestic Water Improvement District to ensure notifications of water service interruptions 72 hours ahead of any scheduled work.

SECTION 107 LEGAL REGULATIONS AND RESPONSIBILITY TO PUBLIC

107.1 COMPLIANCE WITH LAWS, add the following:

107.1.2 Environmental Mitigation Measures:

The Contractor shall adhere to all terms, conditions, and requirements contained in the Environmental Mitigations listed herein. All related permits, reports, and notifications are located in Appendices A and B to these Special Provisions.

Prior to construction, all personnel who will be on-site including, but not limited to, Contractors, Contractors’ employees, supervisors, inspectors, and subcontractors, will review the MCDOT’s “Gila Monster Awareness Program” handout dated June 28, 2024, to become familiar with the identification of the Gila Monster and avoidance protocols. All on-site personnel will follow the notification request as applicable. The handout is located in Appendix A.

If any Sonoran Desert tortoises are encountered during construction, the contractor shall adhere to the Arizona Game and Fish Department’s “Guidelines for Handling Sonoran Desert Tortoises Encountered on Development Projects” revised September 22, 2014, located in Appendix A.

The Contractor shall complete a National Emission Standards for Hazardous Air Pollutants (NESHAP) notification for work associated with the removal of asbestos cement pipe (ACP) and submit it to the Maricopa County Air Quality Department (MCAQD) at least ten (10) business days prior to the start of those activities. The Contractor shall also be responsible for submitting any revisions of the NESHAP notification to that agency.

The Contractor shall send the initial Contractor submitted National Emission Standards for Hazardous Air Pollutants (NESHAP) notification and any subsequent revisions to the Engineer.

The Contractor shall not start work associated with the removal of the asbestos cement pipe (ACP) until ten (10) business days have passed since the submittal of the National Emission Standards for Hazardous Air Pollutants (NESHAP) notification to the Maricopa County Air Quality Department (MCAQD).

The Contractor shall have a copy of the Asbestos and Lead-based Paint Inspection report for TT0609: Tonto Hills Low Volume Roads, prepared by MCDOT and dated April 2024, on site at all times. The report is located in Appendix B.

During project construction, MCDOT Environmental Program Branch shall be notified at (602) 506-8068 of any proposed changes in scope of work and/or work to be added outside the defined project limits, for evaluation of potential environmental impacts.

Payment for Environmental Mitigation Compliance is an allowance determined by MCDOT and is intended to cover all activities associated with fulfilling environmental mitigation measures that

TT0752 Tonto Hills Water Line Improvements 7 are not directly included within other pay items. Payment will be based upon approved invoices, in accordance with Section 109.5.

107.1.3 Compliance with Migratory Bird Treaty Act:

If vegetation removal activities will occur between February 1st and August 31st, the Contractor shall arrange for a qualified biologist to conduct a bird nest survey of the grasses, shrubs, trees and/or limbs to determine the presence/absence of active bird nests. The survey shall be conducted within ten (10) calendar days of vegetation removal.

If active bird nests are found during the bird nest survey or during work activities, the Contractor shall notify the Engineer and avoid vegetation removal or pruning until the MCDOT Environmental Program Branch authorizes the work to resume. MCDOT Environmental Program Branch will arrange for a licensed wildlife rehabilitator to remove any eggs or nestlings from active nests within five (5) working days.

The Contractor shall provide documentation of the biologist qualifications at the preconstruction meeting or prior to any survey work being performed. The biologist shall have completed a full four-year course of study in an accredited college or university leading to a bachelor’s or higher degree, which included a major field (24 semester hours) of study in biological sciences, natural resources management, or related disciplines appropriate to the services provided or a combination of education and equivalent experience totaling a minimum of five years.

Between September 1st and January 31st, grubbing, shrub clearing, and tree/limb removal activities are not subject to this restriction.

Payment for Migratory Bird Treaty Act Compliance will be based upon approved invoices, in accordance with Section 109.5.

107.1.4 Fire Plan: The Contractor shall comply with the following requirements.

The Contractor shall be responsible for the cost of suppressing all fires caused by the Contractor’s operation and for all damage to any property of MCDOT or third parties. The following requirements are a part of this solicitation and any resultant contract.

1. Fire Prevention - During periods of contract performance, fire requirements shall be met by the Contractor.

2. Execution of Fire Plan

a. The Contractor shall designate a fire plan representative who shall be responsible for executing and carrying out the fire requirements.

The Contractor's fire plan representative shall make daily inspections to ensure that the terms of the fire requirements are met at all times.

b. Should any deficiencies appear during the inspection, the deficiencies shall

TT0752 Tonto Hills Water Line Improvements 8 be corrected within 24 hours. Activities with the potential to start fires shall be halted until the deficiencies are corrected.

c. The Contractor shall include the fire requirements in all subcontracts.

d. The Contractor shall ensure that all contract employees are informed of the existence and conditions of the fire requirements.

3. Fire Pre-Suppression Requirements

a. Welding - An area commensurate with the amount of welding to be accomplished shall be cleared before welding operations are started. Written notification must be provided to MCDOT with a 24-hour notice for all welding activity. As a minimum, a 3- to 5-gallon backpack pump filled with water is to be available in addition to the vehicle fire extinguisher. The area in the immediate vicinity of the operation shall be wet down before and after operations. The area adjacent to the welding operations shall be thoroughly checked for fires for 1 hour after welding.

4. Fire Suppression

a. The Contractor shall take independent action on the suppression of all fires in the work area or vicinity. Vicinity is defined as a 1/4-mile extension from the operations area boundary.

5. Equipment Requirements

a. All gasoline and diesel equipment (except turbocharged) used on the project shall be equipped with spark arresters.

b. Serviceable baffled mufflers with standard exhaust tailpipes are considered adequate on trucks, pickups, and sedans.

c. Equipment service areas and gas and oil storage areas shall be cleared of brush, litter, debris, and grass for a radius of at least 50 feet.

d. Each piece of motorized equipment not included in item e below shall be equipped with a round-pointed shovel and fire extinguisher.

e. Fuel trucks, service trucks, and the work site shall be equipped with a shovel, DB axe, and class ABC pressurized chemical fire extinguisher of not less than 15 pounds capacity by weight.

These shall be furnished and maintained at the Contractor's expense.

f. Power saws shall be kept in a safe, serviceable condition at all times. Each

TT0752 Tonto Hills Water Line Improvements 9 power saw shall be equipped with an approved spark arrester/muffler system meeting the SAE J-335b standard.

1) The refueling of power saws shall be done on mineral soil and the saw shall be moved at least 10 feet from the point of refueling to another barren spot before being started.

2) Power saws with warm or hot spark arresters/mufflers (running or not) shall not be placed or rested on sawdust piles, litter duff, stumps, or spots that are easily ignited.

3) Each power saw shall be accompanied by one round-pointed shovel in good condition and a metal fuel-safety can. One chemical pressurized fire extinguisher, 8 ounces or larger, is to be kept with the power saw operator at all times while working on the project. The shovel is to be kept with the fuel supply.

6. Smoking and Fires

a. Smoking

1) No smoking shall be allowed while traveling, except on surfaced highways. A surfaced highway is any road that is oiled, graveled, or otherwise paved.

2) Smoking is not permitted while working. Smoking is only permitted on breaks in areas having a clearing of at least 3 feet in diameter to bare soil.

b. Fires - No warming, burning of debris, or cooking fires shall be permitted.

7. Violations

a. Violation or deficiencies of fire requirements shall result in immediate suspension of operations until the deficiency or violation is corrected.

Repetitive violations will be grounds for default termination.

107.2 PERMITS, add the following:

The Contractor shall comply with all City of Scottsdale permitting requirements.

107.2.1 Stormwater Compliance AZPDES Construction General Permit Requirements, add the following:

This project construction activities will disturb one or more acres of land; therefore, the project is subject to the Arizona Pollutant Discharge Elimination System (AZPDES) program and

TT0752 Tonto Hills Water Line Improvements 10 requires coverage under the Construction General Permit (CGP). The Contractor is responsible for obtaining CGP coverage and complying with permit requirements.

107.2.3 Dust Control Permits, add the following:

The Contractor shall obtain a Dust Control Permit from the Maricopa County Air Quality Department and comply with Rule 310: Fugitive Dust from Dust-Generating Operations. No construction activity disturbance of the site is allowed until the Dust Control Permit has been issued.

107.5 SAFETY, HEALTH AND SANITATION PROVISIONS

107.5.3 Hazardous Material Handling

107.5.3.3 Identify Potentially Hazardous Materials, add the following:

The presence of asbestos-containing materials has been identified within the proposed project limits, associated with the asbestos cement pipe (ACP) used as water lines by the Tonto Hills Domestic Water Improvement District (DWID). The work under this item consists of removal, handling, and satisfactory disposal of the asbestos materials in accordance with the requirements specified herein.

A. General:

The Contractor and its abatement subcontractor shall comply with Maricopa County Air Pollution Control Regulations Rule 370, Section 301.9.

B. Asbestos Abatement Subcontractor:

The Contractor shall select an asbestos abatement subcontractor that is certified to remove, manage, and dispose of asbestos materials. At least one individual performing asbestos abatement-related work on this contract shall possess the following certification:

Asbestos Hazard Emergency Response Act (AHERA) Contractor/ Supervisor for asbestos abatement

Any additional crew members must possess the above or the following certification:

AHERA Worker Certification for all asbestos abatement workers/laborers

Certifications shall be current and must be valid throughout the duration of the project. The asbestos abatement subcontractor shall have three years of documented experience performing related work in the State of Arizona. The Contractor shall submit documentation of the asbestos abatement subcontractor’s certifications for all employees to be working on the project and the qualifications of the firm at the preconstruction meeting. The Contractor’s documentation of qualifications shall provide details indicating the types of relevant experience and shall provide the number of months of each type of experience to be considered for approval.

TT0752 Tonto Hills Water Line Improvements 11

The MCDOT Hazardous Materials Specialist will approve or reject the abatement subcontractor within ten (10) calendar days after receipt of documentation of experience and certifications.

The Contractor will not be allowed an extension in contract time for any delays to the work because of the failure of the Contractor’s asbestos abatement subcontractor to meet the County’s qualifications or notification requirements.

C. Removal Disposal and Containment Plan:

The asbestos abatement subcontractor shall be responsible for preparation of a comprehensive removal, disposal, and containment plan (hereinafter referred to as the Removal Plan) for removal, handling, and disposal of the asbestos materials. The Removal Plan shall comply with Maricopa County Air Pollution Control Regulations Rule 370, Section 301.9, as specified above.

The Removal Plan shall be prepared in accordance with regulations required in OSHA and other applicable federal, state, and local regulations for the removal and disposal of regulated material.

The Contractor shall submit the Removal Plan to the MCDOT Hazardous Materials Specialist for review a minimum of ten (10) working days prior to any work that will disturb the asbestos-containing materials.

The MCDOT Hazardous Materials Specialist will determine if the Removal Plan addresses all the required elements and will return it as approved or disapproved within ten (10) calendar days after receipt. The asbestos-containing materials shall not be disturbed until the Removal Plan has been approved in writing by the MCDOT Hazardous Materials Specialist.

D. Compliance Responsibility:

All work involved with the removal, handling, and disposal of the asbestos-containing materials shall be performed by the Contractor’s approved asbestos abatement subcontractor.

However, the Contractor shall be fully responsible for the work, and for the proper disposal of the removed asbestos-containing materials as specified herein, all in accordance with the applicable federal, state, and local standards, regulations, and requirements. The Contractor shall bear the responsibility for any non-compliance, and shall hold the County, its agents, officials, and employees harmless from all liability which may result from non-compliance with such applicable federal, state, and local standards, regulations and requirements.

E. Construction Requirements:

The Contractor shall supply potable water for their employees to wash their hands after handling the asbestos-containing materials, prior to eating, drinking, or tobacco use of any kind.

The asbestos abatement subcontractor shall remove the asbestos-containing materials in accordance with the approved Removal Plan. The asbestos-containing materials shall not be abraded in any way including grinding, sanding, or heating.

The Contractor shall also provide a letter and manifest certifying that the asbestos abatement subcontractor has disposed of the asbestos-containing materials in accordance with the final

TT0752 Tonto Hills Water Line Improvements 12

Removal Plan. Such letter and manifest shall be submitted to the Engineer within ten (10) working days of final disposal.

A time extension will not be granted due to the Contractor’s failure to comply with the requirements specified herein.

F. Basis of Payment:

Payment for asbestos removal will be based upon approved invoices, in accordance with Section 109.5.

107.15 COMMUNITY RELATIONS SUPPORT

107.15.1 General, replace the first paragraph with the following:

The Contractor shall not be required to:

(A) Participate in public meetings.

The Contractor shall:

(B) Distribute community relations program notices (door hangers) to local residents and businesses as required by the Engineer.

(C) Provide existing conditions documentation prior to starting construction in video format or as approved by the Engineer.

SECTION 111 ENGINEER’S OFFICE FACILITIES:

111.1 DESCRIPTION:

Engineer Office Facilities will not be required for this project.

SECTION 201 CLEARING AND GRUBBING:

201.3 CONSTRUCTION METHODS:

Modify the first sentence by deleting the phrase “or to a line 10 feet outside the edge of the surfaced area, whichever is greater,” and replacing with:

”or to a line up to 10 feet measured from the center of the water line as shown on the project plans trench detail.”

SECTION 330 ASPHALT CHIP SEAL

330.2 MATERIALS, add the following:

The Engineer must approve all material sources prior to their use. Once approved, material sources shall not be changed without the approval of the Engineer. If required by the Engineer, the Contractor shall submit material samples at least seven days prior to start of construction.

When requested, additional samples shall be furnished during the construction period at no cost to the County. Material sample submittal is a non-pay item.

TT0752 Tonto Hills Water Line Improvements 13

330.2.1 Asphalt:

Asphalt shall be MC 250 liquid asphalt and shall be produced by fluxing an asphaltic base with suitable petroleum distillates. The material shall show no separation or curdling prior to use and shall not foam when heated to the application temperature. The material shall conform to the requirements of Table 330-1 for the grade specified in the contract.

The Contractor shall determine liquid asphalt/stone chip compatibility. All test results shall be submitted to the Engineer.

TABLE 330-1

MC 250 LIQUID ASPHALT AASHTO M-82 TABLE 1

Property Test Method Requirement Kinematic Viscosity at 60 degree c (140 F) centistokes ASTM D2170 250 min 500 max Flash point(tab open cup) degrees C (F) ASTM D92 66 (150) min Water percent ASTM D95 …min 0.2 max Distillation test: Distillate percentage by volume of total distillate to 360 degree C (680 degree F) to 225 C (437 F) to 260 C (500 F) to 315 C (600 F)

ASTM D402

0 min 10 max 15 min 55 max 60 min 87 max

Residue from distillation to 360 degree C (680 f) Volume percentage of sample by difference

ASTM D402 67 min …max

Test on residue from distillation Absolute viscosity at 60 degree C (140 F) poises ASTM D21771 300 min

1200 max Ductility, 5 cm/min, cm. ASTM D113 100 min

…max Solubility in Trichloroethylene percent ASTM D2042 99 min

…max

Add the following subsection:

330.2.3 Rubber Asphalt Binder (RAB)

The asphalt binder shall consist of asphalt cement, Granulated Reclaimed Tire Rubber (CRM), and styrene-butadiene-styrene (SBS) Polymer. This material is designated as Rubber Asphalt Binder that meets the requirements for performance grade specification PG 70-22 TR+ as presented in Table 330-A.

The ground tire rubber shall be any crumb rubber, derived from processing whole scrap tires or shredded tire materials taken from automobiles, trucks, or other equipment owned and operated in the United States. The processing shall not produce, as a waste, casings, or other ground material that can hold water when stored or disposed above ground. Rubber tire buffing produced by the re-treading process qualifies as a source of crumb rubber.

The Contractor shall determine RAB/stone chip compatibility. Proposed aggregate samples shall be submitted to the RAB supplier prior to the preparation of the mix design to test the aggregate

TT0752 Tonto Hills Water Line Improvements 14 for stripping characteristics. All test results shall be submitted to the Engineer. RAB shall be smooth, homogeneous and comply with the following requirements:

TABLE 330-A

RUBBER ASPHALT BINDER (RAB) PG 70-22 TR+

Test Property AASHTO Test Method Requirements Dynamic Shear of Original Binder:

G*/Sin δ, kPa minimum

T 315 1.00

Dynamic Shear of RTFO Binder:

G*/Sin δ , kPa minimum

T315 2.20

Dynamic Shear of PAV Binder:

G*Sin δ , kPa maximum

T315 5000

Creep Stiffness of PAV Binder:

S, Mpa maximum

T313 300 m-value at 60 sec.

minimum

T313 0.300

ADDITIONAL REQUIREMENTS

Test Property AASHTO Test

Method Requirements

Solubility in Trichloroethylene, %, minimum

ASTM D 2042 97.5

Softening Point, °C, minimum

AASHTO T 53 54

Elastic Recovery, @ 10 °C, %, AASHTO T 301 55

Phase Angle (δ), @ 70 °C @ 10 rad/sec, degrees, maximum

AASHTO T 315 75

Separation of Polymer, 325°F, %

TEX 540-C (see Note below) Report

Notes:

PG 70-22 TR+ asphalt binder shall contain a minimum of 8 percent crumb rubber and a minimum of two percent SBS (styrene-butadiene-styrene) polymer.

PG 70-22 TR+ asphalt binder shall conform to the requirements of AASHTO M 320 and, in addition, shall meet the requirements specified above.

Note: A 350-gram sample of the RAB is poured into a friction-top pint can (approximately 3- 1/2 inch diameter by 4 inch height) and stored for 48 hours at 325°F. Upon completion of storage time the sample is visually examined for separation of polymer from the asphalt (smoothness and homogeneity). If after visual evaluation a question still exists about the separation of polymer, samples will be taken from the top and bottom for softening point

TT0752 Tonto Hills Water Line Improvements 15 determination. A difference between the softening points of top and bottom samples of 4 percent or more, based on the average of the top and bottom softening points, constitutes separation (Tex 540-C).

Application and storage temperatures shall comply with the following requirements:

Type-Grade Recommended Range, °F Max. Allowable, °F Max. Heating and Storage, °F RAB 340-360 375 375 (see Note below)

Note: Maximum temperature for storage by the Asphalt Supplier or the Contractor shall be 360°F. For RAB designated for surface treatment work, the temperature of the modified asphalt binder may be increased to a maximum of 375°F by the supplier loading through an in-line heater or by the Contractor just prior to application. In any case, the heating, storage, and application temperatures used shall be the lowest temperatures practical.

Add the following subsections:

330.2.4 Material Testing

The Contractor is responsible for the quality control of the materials used. Testing done by the Engineer will be for acceptance and assurance that materials used conform to the specifications and not considered quality control.

330.2.4.1 Asphalt Binder

Provisions for properly sampling from distributor trucks or on-site bulk storage units shall be made by the Contractor. Sampling shall be done by the Contractor and witnessed by the Engineer in accordance with the latest edition of ASTM D-140, "Standard Methods of Sampling Bituminous Materials". The Engineer will test in accordance with the latest edition of AASHTO or ASTM.

The minimum frequency of assurance sampling and testing shall be once per 500 tons of asphalt binder, or at least one per project. Material found in non-compliance will be rejected and removed from the job site. No payment will be made for rejected material. The project shall not resume until the new material is tested by the Contractor's AASHTO asphalt accredited, independent, materials laboratory, and found in compliance. The Contractor's test results shall be submitted to the Engineer for compliance verification. No lost time will be considered as a result of material being found in non-compliance.

330.2.4.2 Stone Chips (Pre-Coated)

The stone chips will be sampled and tested by the Engineer in accordance with the latest edition of ASTM C-136, "Sieve Analysis of Fine and Coarse Aggregates." The Engineer will sample and test the stone chips, for approval, from the completed stockpile, prior to pre-coating.

Add the following subsection:

330.3 TIME OF APPLICATION AND WEATHER CONDITIONS

TT0752 Tonto Hills Water Line Improvements 16

The chip seal shall be placed only when the roadway surface is dry and there is no imminent threat of rain or if wind deflects the asphalt binder spray from vertical. The surface treatment shall not be applied unless the pavement temperature is at least 60 degrees F and rising.

330.4 CONSTRUCTION METHODS

330.4.1 Preparation of Surfaces, replace with the following:

Surface Cleaning

Immediately before applying the bituminous material, the area to be surfaced shall be cleaned of dirt and other objectionable material. The surface shall be cleaned with a self-propelled pickup sweeper. When necessary, cleaning of the existing pavement surface shall be supplemented by hand brooms or other methods, approved by the Engineer, to assure a good bond between the surface treatment and the pavement surface. Pick up brooms alone may not be adequate to thoroughly clean the surface. If water is used, the pavement shall be dry before applying the asphalt binder. The Contractor shall conduct all sweeping operations in the same direction as traffic flow. Final sweep shall be made three months following Project Completion.

The Contractor shall take all steps, procedures, and means to prevent dust pollution due to his construction practices in connection with this work. Dust prevention measures shall be maintained at all times during construction of the project to the satisfaction of the Engineer, in accordance with Maricopa County Air Pollution Control Regulations.

330.4.2 Application of Bituminous Material, replace with the following:

The bituminous material shall be applied the same day the surface is prepared. Asphalt binder containing particulate modifiers may be susceptible to separation of the modifier. Appropriate circulation or agitation in storage shall be provided if separation of the modifier is expected, suspected, or if the modified asphalt binder will be stored at elevated temperature for more than one day before use.

The Engineer will determine the precise application rate of the asphalt binder. For bidding purposes the contractor shall assume an application rate of 0.40 gal/sy for low volume, and 0.56 gal/sy for high volume at 60 degrees F. At application temperature, the rate could be 0.05 gal/sy higher. At all times, application rate for low volume shall be kept at 0.30 to 0.40 gal/sy. For high volume, application rate shall be kept at 0.50 to 0.60 gal/sy.

Contractor shall take precautionary measures to protect surrounding areas. Any overspray of asphalt binder on concrete pavers asphalt driveways or concrete aprons and driveways shall be removed by the Contractor by an approved method.

330.4.3 Application of Cover Material, replace with the following:

At an appropriate time, as determined by the Contractor following the application of the bituminous material, the chips shall be spread with a self-propelled mechanical spreader. The spreader shall be a self-propelled machine with an aggregate receiving hopper in the rear, belt conveyors to carry the aggregate to the front, and a spreading hopper equipped with a full width

TT0752 Tonto Hills Water Line Improvements 17 distribution auger and spread roll. The spreader shall be in good mechanical condition and be capable of applying the cover material uniformly across the spread at the specified rate. The minimum width of the spreader shall be twelve feet. Trucks utilized for hauling stone chips shall be tailgate discharge and shall be equipped with a device to lock onto the hitch at the rear of the stone chip spreader. Haul trucks shall also be compatible with the stone chip spreader so that the dump bed will not push down on the spreader when fully raised or have too short a bed, which results in stone chip spillage while dumping into the receiving hopper.

At the time of application, precoated aggregate shall be within the temperature range of 200 degrees F and 300 degrees F measured at a point 6 to 12 inches below the top of the load. In

The Engineer will determine the application rate of the cover material. For bidding purposes, the contractor shall assume a maximum application rate of 18 lbs/sy for low volume, and 26 lbs/sy for high volume. At all times, the application rate for low volume shall be kept at 15lbs to 20lbs. For high volume, the application rate shall be kept at 20lbs to 25lbs.

330.4.4 Rolling, replace with the following:

In residential areas, rollers shall be completely skirted.

Three operational pneumatic-tired rollers, with operators shall be provided to accomplish the required embedment of the stone chips. If the Contractor is working at more than one location, there shall be a minimum of three rollers, with operators at each location.

Sufficient rollers shall be used for the initial rolling to cover the width of the stone chip spread with one pass. The first pass shall be made immediately behind the stone chip spreader. Three complete passes with pneumatic-tired rollers shall be made. The Engineer may require extra rolling on Cul-de-Sacs. All rolling completed within one hour after the application of the stone chips. If the spreading is stopped for an extended period, the stone chip spreader shall be moved ahead or off to the side so that all stone chips can be rolled immediately.

330.4.5 Joints, replace with the following:

Paper, or other material approved by the Engineer, shall be used at the beginning and end of the surface treatment section to make a smooth, straight, clean transition. Paper shall also be used at concrete bridge decks. Overlap of asphalt binder at transverse stopping points, creating a bump, is not allowed.

330.4.6 Surplus Aggregate Removal, replace with the following:

The Contractor shall keep all driveways clean of any loose stone chips on a daily basis during construction. Gas powered blowers are not allowed. Cleanup shall also include the daily removal of surface treatment materials from manhole covers, valve covers, survey monuments, fire hydrant markers, rip rap, etc. in the project area.

The Contractor shall conduct all sweeping operations in the same direction of traffic flow. Pick-up brooms shall be used on subdivision roads, and roads with curb and gutter.

TT0752 Tonto Hills Water Line Improvements 18

Before final acceptance, all private and/or public property and grounds occupied by the Contractor in connection with the work shall be cleaned of all rubbish, excess materials, temporary structures, and equipment. All parts of the work area shall be left in a condition equal to, or better than, it was prior to the start of the project.

Before final acceptance, the Contractor shall sweep the completed project area and repeat the surface treatment where the old road surface is exposed, or where binder lies uncovered by stone chips.

330.4.7 Distributing Equipment, replace with the following:

Distributor trucks shall comply with the most current edition of Section 404-3.02 (A) of the Arizona Department of Transportation Standard Specifications for Road and Bridge Constructions. For each distributor truck proposed to be used on the project, an Arizona Test Method 411 Report shall be submitted to the Engineer. If the reports are over 12 months old, the Contractor's AASHTO Accredited Testing Laboratory will test the trucks, with the results submitted to the Engineer.

Add the following subsection:

330.4.8 Sand Blotter:

Sand blotter shall be in accordance with Section 333.3.2.

The Contractor shall apply sand blotter, as many times as necessary, prior to opening the roadway to traffic where there is an excess of asphalt, or as requested by the Engineer. The Contractor shall be responsible for sweeping the sand within 24 hours of opening the roadway to traffic.

If the paved roadway is to be sanded, the surface shall be sanded at approximately two pounds per square yard. No more sand shall be used than necessary, and the amount specified shall not be increased without prior approval of the Engineer.

Add the following subsection:

330.4.9 Surface Performance

The completed surface treatment shall leave a homogeneous mat, adhere firmly to the prepared surface, and have a skid resistant surface texture.

330.6 MEASUREMENT, replace with the following:

Certified weight slips are required for all asphalt binder.

330.7 PAYMENT, replace with the following:

(A) Binder Material: Ton

TT0752 Tonto Hills Water Line Improvements 19

(B) Chip seal operation/construction: SY

The cost associated with sand blotter, the material supplies, application, and clean-up shall be included in the unit price of related pay items. No direct payment or measurement for pay purposes will be made for sand blotter.

SECTION 350 REMOVAL OF EXISTING IMPROVEMENTS

350.1 DESCRIPTION, add the following:

Work under this bid item shall also include the removal, salvage and reinstallation of driveway pavers or the replacement of AC driveways, if impacted by construction. An allowance in the amount of $20,000 has been established for the project to be used at the discretion of the Engineer. Contractor is advised of the following:

- Reinstallation of pavers shall comply with MAG Section 342 (Approximately 75 SY)

- All areas shall include subgrade preparation.

SECTION 401 TRAFFIC CONTROL

401.4 TRAFFIC CONTROL MEASURES:

401.4.1 Traffic Control Plan, add the following:

Construction shall be limited to the areas shown in the plans for each phase (or as directed by the Engineer). A construction sequence plan has been included in the plans (Sheet 105). The intent of this phasing requirement is to minimize the disruption to this community. The contractor will be limited to this phasing sequence and any additional cost associated with this phasing requirement shall be incidental within the Traffic control line item. The contractor may submit a phasing plan that meets the general intent of this phasing requirements for review and consideration.

No measurement or direct payment will be made for developing the sequencing plan and/or traffic control plan, the cost being considered included in the price of the contract items.

401.5 GENERAL TRAFFIC REGULATIONS:

401.5.3 Temporary Lane Diversions, add the following:

The Contractor will be allowed to run traffic on native or pulverized chip seal, provided dust control is maintained. In lieu of removing existing chip seal, the Contractor may opt to pulverize in place to ABC specification.

401.5.9 Traffic Control Allowable Closures and Restrictions, add new section:

Only daytime work, between Monday and Friday, excluding recognized federal holidays, will be allowed, between the hours of 6 AM to 7 PM. All roads shall be re-opened to 2 lanes, 2-way traffic at night and on weekends, with no exceptions. Temporary grading may be required to allow for one lane of traffic to be maintained during the workday so that the roadway may be

TT0752 Tonto Hills Water Line Improvements 20 graded as shown on the plans. Any temporary grading will be incidental to the Traffic Control bid item.

The Contractor will be allowed to run traffic on native or pulverized chip seal, provided dust control is maintained. In lieu of removing existing chip seal, the Contractor may opt to pulverize in place to ABC specification.

Short term flagging closures are allowed, with a 30-minute maximum duration. Access is to be maintained to local traffic, including emergency response, trash pickup and mail delivery, at all times. Short term driveway closures will be allowed only for work directly in front of the driveway, and only after notifying affected residents 2 days in advance. Temporary grading, ramps, or other measures to ensure driveway access may be needed.

The Contractor shall provide for adequate drainage, free of ponding, within the limits of construction. This work, which may require temporary drainage construction, pumping, or other methods, shall be considered incidental to the completion of the project and no separate measurement or payment shall be made. Diversion of drainage onto private property shall not be allowed.

SECTION 610 WATER LINE CONSTRUCTION

610.4.3, Blocking and Restraints, Modify the 5TH paragraph of the standard specification to read:

Where restrained joints are specified on mains sixteen (16) inches in diameter and smaller, ductile iron pipe shall be used with an approved joint restraint method. If ductile iron pipe material is not specified on the project plans, then use an approved joint restraint for the specified pipe material.

SECTION 716 COVER MATERIAL

716.2.3 Gradation, Replace Tables 716-1 and 716-2 with the following:

TABLE 716-1

COVER MATERIAL, LOW VOLUME

Sieve Size Percent Passing 1/2 in. 100 3/8 in. 97-100 1/4 in. 65-100 No. 8 0-10 No. 200 0-1

TABLE 716-2

COVER MATERIAL, HIGH VOLUME

Sieve Size Percent Passing 3/4 in. 100

TT0752 Tonto Hills Water Line Improvements 21

COVER MATERIAL, HIGH VOLUME

Sieve Size Percent Passing 1/2 in. 97-100 3/8 in. 70-100 1/4 in. 0-10 No. 8 0-5 No. 200 0-1

End of Special Provisions

APPENDIX A

June 28, 2024

Gila Monster Awareness Program (Heloderma suspectum)

Maricopa County Department of Transporta�on (MCDOT)

Courtesy of Arizona Game and Fish

Iden�fica�on: Large bodied lizard (up to 22 inches in length and 5 pounds in weight) with black and pink or orange blotches or bands and has beadlike scales.

Habitat: Primarily the deserts of Arizona and Mexico near washes and arroyos in semi-arid rocky regions. Gila monsters prefer rocky foothills over flat terrain.

O�en Mistaken Species:

Chuckwalla (Sauromalus ater)

Western-banded Gecko (Coleonyx variegatus)

DO NOT ATTEMPT TO HANDLE OR MOVE. Gila Monsters are venomous and will bite if threatened. If a Gila Monster is injured during project ac�vi�es or will not leave the project site on its own, contact one of the “Addi�onal Resources” below and then no�fy the MCDOT Natural Resources Biologist (602.506.0001).

Addi�onal Resources:

Arizona Game and Fish Department: 602.942.3000

Phoenix Herpetological Society: 480.513.43777

APPENDIX B

Maricopa County Transportation Department Engineering Division

TT0609: Tonto Hills Low Volume Roads

Asbestos and Lead- Based Paint Inspection

April 2024

Maricopa County • Transportation Department • Engineering Division • April 2024 i

INSPECTION SUMMARY

Owner Information: Maricopa County Department of Transportation, 2901 West Durango Street, Phoenix, Arizona 85009

Facility Description: Water distribution system within the Tonto Hills residential subdivision

Facility Location: Main entrance: N Cave Creek Road and N Old Mine Road, Approximate Latitude and Longitude: 33.866182, - 111.828424

Facility Size: 2,135,348 square feet (49.02 acres)

Facility Age: Approximately 60 years (Early 1960s infrastructure and mid-1960s to early 2020s residential construction)

Facility Present Use: Water distribution system of residential subdivision

Facility Prior Use: No different prior use

Date of Inspection: July 7, 2023

Inspector: Theodore Stude

Certification Number(s) & Expiration Date(s):

Asbestos Building Inspector: ON-4644-5273-031623, Expires March 16, 2024

Lead Risk Assessor: LBP-R-102140-3, Expires April 5, 2026

Training Provider(s): The Asbestos Institute (Asbestos) and Allstate Services, LLC (Lead)

Number of Samples and Dates Analyzed:

60 (July 10, 2023) using Polarized Light Microscopy (PLM), EPA method 600/R-93/116 (Asbestos)

9 (July 12, 2023) using Flame Atomic Absorption Spectrophotometry (Flame AAS), modified EPA method SW-846 3050B/7000B (Lead)

Laboratory and Certification Number(s): Fiberquant Analytical Services (PLM and Flame AAS)

National Voluntary Laboratory Accreditation Program (NVLAP) Lab Code: 101031-0

Environmental Lead Laboratory Accreditation Program (ELLAP)1 Laboratory ID: 101593

Asbestos-Containing Material (ACM) Identified: None by laboratory analysis.

ACM Assumed:

To Be Removed To Remain Facility Component

Estimated Quantity NESHAP Category Estimated Quantity NESHAP Category

854 linear feet² Regulated ACM (RACM) Asbestos Cement Pipe

(ACP), various diameters 3,416 linear feet² Category II Nonfriable

ACM

22,980 linear feet Category II Nonfriable

ACM

Lead-Containing Paint (LCP) Identified: None by laboratory analysis.

Lead-Based Paint (LBP) Identified: None by laboratory analysis.

1 The EPA recognizes the ELLAP program as meeting the requirements of the National Lead Laboratory Accreditation Program (NLLAP).

2 The estimated quantities of ACP to be removed are based on 2 cuts (1 cut at each end) per 10-foot section of pipe, with the section of pipe remaining intact otherwise. The quantity values should be revised if the removal method differs.

Note: ACP in an intact, undamaged, state is categorized under National Emission Standards for Hazardous Air Pollutants (NESHAP) as a Category II nonfriable ACM. However, during demolition or renovation operations there is a high probability of the material becoming crumbled, pulverized, or reduced to powder which would categorize the material as RACM.

Maricopa County • Transportation Department • Engineering Division • April 2024 1

Maricopa County Department of Transportation TT0609: Tonto Hills Low Volume Roads

Asbestos and Lead-Based Paint Inspection April 2024

Project Description The purpose of the Maricopa County Department of Transportation (MCDOT) TT0609 project is to provide permanent dust mitigation by paving 17 roadway segments within the Tonto Hills subdivision to comply with MCDOT’s Very Low-Volume Road Design Guidelines and meet the local community’s expectations. The paving will also reduce maintenance and repair efforts and expenditures caused by stormwater erosion of the existing roadways.

Inspection Description The purpose of this asbestos and lead-based paint inspection is to evaluate suspect materials and identify asbestos-containing materials (ACM), lead-containing paints (LCP), or lead-based paints (LBP) prior to disturbance by proposed construction activities called out in 60% construction plans dated May 30, 2023.

This inspection will also include data from an existing report detailing an asbestos and lead-based paint inspection completed by Western Technologies Inc. (WT) in 2021.