AMD0001-SPEC 01 20 00 and 31 00 00 and 33 05_23_Drawings.pdf

88ARLWATER SOLICITATION NO.: W912EK26BA017

PRECONTRACT REVISIONS - AMENDMENTS

The following changes are made to Section 01 20 00, Section 31 00 00, Section 33 05 23 and the DRAWINGS.

a. SECTION 01 20 00. Delete 01 20 00 in its entirety and substitute Section 01 20 00, Amendment 0001.

b. SECTION 31 00 00. Delete 31 00 00 in its entirety and substitute Section 31 00 00, Amendment 0001.

c. SECTION 33 05 23. Delete 33 05 23 in its entirety and substitute Section 33 05 23, Amendment 0001.

d. DRAWINGS (SUPERSEDED)

Revised drawings listed below are being issued with this Amendment. Such revised drawings supersede those of the same sheet identification numbers listed in the INDEX OF DRAWINGS furnished with Solicitation No.

W912EK26BA017.

(1) Option A, SHEET C-101

(2) Option B, SHEET C-102

e. ATTACHMENTS

(1) Section 01 20 00, Section 31 00 00, and Section 33 05 23

(2) Option A C-101 and Option B C-102

AMND 0001

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

PART 1 GENERAL

1.1 JOB PAYMENT ITEMS

1.1.1 Demolition

1.1.1.1 Payment

1.1.1.2 Unit of Measure

1.1.2 Stripping

1.1.2.1 Payment

1.1.2.2 Unit of Measure

1.1.3 Cap Watermain

1.1.3.1 Payment

1.1.3.2 Unit of Measure

1.1.4 Site Restoration and Seeding

1.1.4.1 Payment

1.1.4.2 Unit of Measure

1.2 UNIT PRICE PAYMENT ITEMS

1.2.1 Restroom Trailers

1.2.1.1 Payment

1.2.1.2 Measurement

1.2.1.3 Unit of Measure

1.2.2 8-Inch DIP Watermain

1.2.2.1 Payment

1.2.2.2 Measurement

1.2.2.3 Unit of Measure

1.2.3 6-Inch DIP Watermain

1.2.3.1 Payment

1.2.3.2 Measurement

1.2.3.3 Unit of Measure

1.2.4 3-Inch DIP Watermain

1.2.4.1 Payment

1.2.4.2 Measurement

1.2.4.3 Unit of Measure

1.2.5 Valve Manholes

1.2.5.1 Payment

1.2.5.2 Measurement

1.2.5.3 Unit of Measure

1.2.6 Fire Hydrants

1.2.6.1 Payment

1.2.6.2 Measurement

1.2.6.3 Unit of Measure

1.2.7 Bollards

1.2.7.1 Payment

1.2.7.2 Measurement

1.2.7.3 Unit of Measure

1.2.8 Water Meter Vaults

1.2.8.1 Payment

1.2.8.2 Measurement

1.2.8.3 Unit of Measure

SECTION 01 20 00 Page 1

1.2.9 Asphalt Patching

1.2.9.1 Payment

1.2.9.2 Measurement

1.2.9.3 Unit of Measure

1.2.10 Concrete Patching

1.2.10.1 Payment

1.2.10.2 Measurement

1.2.10.3 Unit of Measure

1.2.11 8-Inch DIP Watermain Under West Central Rd

1.2.11.1 Payment

1.2.11.2 Measurement

1.2.11.3 Unit of Measure

1.2.12 Watermain Connection

1.2.12.1 Payment

1.2.12.2 Measurement

1.2.12.3 Unit of Measure

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 20 00 Page 2

SECTION 01 20 00

PRICE AND PAYMENT PROCEDURES

PART 1 GENERAL

1.1 JOB PAYMENT ITEMS

Payment items for the work of this Contract for which Contract job payments will be made are listed in the SCHEDULE OF PRICES and as specified. All costs for items of work, which are not specifically mentioned to be included in a particular job price payment item, are included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed constitutes full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.1.1 Demolition

1.1.1.1 Payment

Payment for all costs associated with demolition, including, but not limited to, demolition activities, proper disposal, and recycling debris will be paid for Item No. 0102 "Demolition," of the Base Bid.

1.1.1.2 Unit of Measure

Unit of measure: job.

1.1.2 Stripping

1.1.2.1 Payment

Payment for all costs associated with Stripping, including, but not limited to, stripping and stockpiling sod and topsoil will be made for:

Item No. 0103, "Stripping," of the Base Bid; and

Item No. 0801, "Stripping," of Option B, as applicable.

1.1.2.2 Unit of Measure

Unit of measure: job.

1.1.3 Cap Watermain

1.1.3.1 Payment

Payment for all costs associated with capping the abandoned watermain at the locations indicated on Sheet CD101 for the leak investigation including, but not limited to, locating, excavating, cutting, capping, plugging with concrete, and backfilling will be paid for Item No. 0201, "Cap Watermain," of the Base Bid.

SECTION 01 20 00 Page 3

1.1.3.2 Unit of Measure

Unit of measure: job.

1.1.4 Site Restoration and Seeding

1.1.4.1 Payment

Payment for all costs associated with restoring the aggregate trail, site, and staging areas to original or better condition including, but not limited to, providing aggregate surfacing and spreading topsoil, repair damaged turf areas, staging area site restoration, finish grading, seedbed preparation, seeding, fertilizing, and mulching will be made for:

Item No. 0501, "Site Restoration and Seeding," of the Base Bid; and

Item No. 1001, "Site Restoration and Seeding," of Option B, as applicable.

1.1.4.2 Unit of Measure

Unit of measure: job.

1.2 UNIT PRICE PAYMENT ITEMS

Payment items for unit price items will be made in the SCHEDULE OF PRICES and as specified. The unit price and payment made for each item will constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each unit price item.

1.2.1 Restroom Trailers

1.2.1.1 Payment

Payment for all costs associated with the Restroom Trailers, including, but not limited to, providing three separate portable restroom trailers as specified, each with separate men's and women's facilities and one with an ADA compliant stall; providing cleaning services as specified; and providing utility hookups or disposal services for Item No. 0101, "Restroom Trailers," of the Base Bid.

1.2.1.2 Measurement

The number of months, rounded up to the nearest whole month, as determined by the Contractor and approved by the Contracting Officer that restroom trailers are in use on site.

1.2.1.3 Unit of Measure

Unit of measure: month.

1.2.2 8-Inch DIP Watermain

1.2.2.1 Payment

Payment for all costs associated with the 8-inch watermain installation including, but not limited to, trench excavation; dewatering; trenchless

SECTION 01 20 00 Page 4 installation materials and equipment; furnishing and installing pipe and associated appurtenances; furnishing, placing, and compacting bedding and backfill material; casing; testing; disinfection; and polyethylene wrap will be made for:

Item No. 0104, "8-Inch DIP Watermain," of the Base Bid; and

Item No. 0802, "8-Inch DIP Watermain," of Option B, as applicable.

1.2.2.2 Measurement

The number of linear feet as measured in the field by the Contractor and approved by the Contracting Officer along the centerline of the pipe including the length through the fittings. Pipe will be measured from center of fitting to center of fitting, from center of water main to center of fire hydrant, and from center of water main to end of service connection.

1.2.2.3 Unit of Measure

Unit of measure: linear foot.

1.2.3 6-Inch DIP Watermain

1.2.3.1 Payment

Payment for all costs associated with the 6-inch watermain installation including, but not limited to, trench excavation; dewatering; trenchless installation materials and equipment; furnishing and installing pipe and associated appurtenances; furnishing, placing, and compacting bedding and backfill material; casing; testing; disinfection; and polyethylene wrap will be made for Item No. 0105, "6-Inch DIP Watermain," of the Base Bid.

1.2.3.2 Measurement

The number of linear feet as measured in the field by the Contractor and approved by the Contracting Officer along the centerline of the pipe including the length through the fittings. Pipe will be measured from center of fitting to center of fitting, from center of water main to center of fire hydrant, and from center of water main to end of service connection.

1.2.3.3 Unit of Measure

Unit of measure: linear foot.

1.2.4 3-Inch DIP Watermain

1.2.4.1 Payment

Payment for all costs associated with the 3-inch watermain installation including, but not limited to, trench excavation; dewatering; trenchless installation materials and equipment; furnishing and installing pipe and associated appurtenances; furnishing, placing, and compacting bedding and backfill material; testing; disinfection; and polyethylene wrap will be made for Item No. 0106, "3-Inch DIP Watermain," of the Base Bid.

SECTION 01 20 00 Page 5

1.2.4.2 Measurement

The number of linear feet as measured in the field by the Contractor and approved by the Contracting Officer along the centerline of the pipe including the length through the fittings. Pipe will be measured from center of fitting to center of fitting, from center of water main to center of fire hydrant, and from center of water main to end of service connection.

1.2.4.3 Unit of Measure

Unit of measure: linear foot.

1.2.5 Valve Manholes

1.2.5.1 Payment

Payment for all costs associated with gate valves on buried piping including, but not limited to, excavation; dewatering; furnishing and installing valves and associated valve boxes; furnishing, placing, and compacting bedding and backfill material; testing; and polyethylene wrap will be made for Item No. 0107, "Valve Manholes," of the Base Bid.

1.2.5.2 Measurement

The number of gate valves installed on buried piping as counted in the field by the Contractor and approved by the Contracting Officer.

1.2.5.3 Unit of Measure

Unit of measure: each

1.2.6 Fire Hydrants

1.2.6.1 Payment

Payment for all costs associated with providing fire hydrants including, but not limited to, excavation; dewatering; painting; associated appurtenances; thrust blocks; furnishing, placing, and compacting bedding and backfill material; testing; polyethylene wrap; and connection to the watermain will be made for Item No. 0108, "Fire Hydrants," of the Base Bid.

1.2.6.2 Measurement

The number of fire hydrants installed as counted in the field by the Contractor and approved by the Contracting Officer.

1.2.6.3 Unit of Measure

Unit of measure: each

1.2.7 Bollards

1.2.7.1 Payment

Payment for all costs associated with providing bollards including, but not limited to, excavation; associated appurtenances; steel pipe;

embedment sleeve; concrete; painting; and protective sleeve will be made for Item No. 0109, "Bollards," of the Base Bid.

SECTION 01 20 00 Page 6

1.2.7.2 Measurement

The number of bollards installed as counted in the field by the Contractor and approved by the Contracting Officer.

1.2.7.3 Unit of Measure

Unit of measure: each.

1.2.8 Water Meter Vaults

1.2.8.1 Payment

Payment for all costs associated with water meter vaults including, but not limited to, excavation; dewatering; furnishing and installing precast reinforced concrete vaults with openings and ladders for access;

furnishing and installing water meters and associated fittings;

furnishing, placing, and compacting bedding and backfill material;

testing; and connection to the watermain will be made for:

Item No. 0110, "Water Meter Vaults," of the Base Bid; and

Item No. 0805, "Water Meter Vaults," of Option B, as applicable.

1.2.8.2 Measurement

The number of water meter vaults installed as counted in the field by the Contractor and approved by the Contracting Officer.

1.2.8.3 Unit of Measure

Unit of measure: each.

1.2.9 Asphalt Patching

1.2.9.1 Payment

Payment for all costs associated with asphalt patching including, but not limited to; sawing, removing, and disposing of existing asphalt pavement;

restoring the subgrade; furnishing and placing asphalt pavement, including the asphalt binder and tack coat; pavement markings; and placing backfill to restore disturbed surfaces will be made for Item No. 0301, "Asphalt Patching," of the Base Bid.

1.2.9.2 Measurement

The number of square yards as measured in the field by the Contractor and approved by the Contracting Officer.

1.2.9.3 Unit of Measure

Unit of measure: square yard.

1.2.10 Concrete Patching

1.2.10.1 Payment

Payment for all costs associated with concrete patching including, but not

SECTION 01 20 00 Page 7 limited to; sawing, removing, and disposing of existing concrete pavement and reinforcing; restoring the subgrade; furnishing and installing tiebars and dowel bars; furnishing and placing concrete pavement; forming and constructing integral curb; surface curing and pavement protection; joint sawing and filling; pavement markings; and placing backfill to restore disturbed surfaces will be made at the Contract unit price for:

Item No. 0401, "Concrete Patching" of the Base Bid; and

Item No. 0701, "Concrete Patching" of Option A, as applicable; and

Item No. 0901, "Concrete Patching" of Option B, as applicable.

1.2.10.2 Measurement

***AMND 0001***

The number of square yards feet as measured in the field by the Contractor and approved by the Contracting Officer.

1.2.10.3 Unit of Measure

Unit of measure: square feet.

1.2.11 8-Inch DIP Watermain Under West Central Rd

1.2.11.1 Payment

Payment for all costs associated with the watermain installation under West Central Rd including, but not limited to, furnishing and installing pipe; trenchless installation materials and equipment; pit excavation;

dewatering; placing and compacting backfill material; casing; testing; and disinfection will be made at the Contract unit price for:

Item No. 0601, "8-Inch DIP Watermain Under West Central Rd" of Option A;

and

Item No. 0803, "8-Inch DIP Watermain Under West Central Rd" of Option B, as applicable.

1.2.11.2 Measurement

The number of linear feet as measured in the field by the Contractor and approved by the Contracting Officer along the centerline of the pipe.

1.2.11.3 Unit of Measure

Unit of measure: linear foot.

1.2.12 Watermain Connection

1.2.12.1 Payment

***AMND 0001***

Payment for all costs associated with the watermain connection to the Village of Arlington Heights including, but not limited to, demolition and disposal of sidewalk; excavation; dewatering; furnishing and installing tapping sleeve, tapping valve, valve box, and thrust blocks; furnishing, SECTION 01 20 00 Page 8 placing, and compacting bedding and backfill material; testing; permits;

connection fees; and polyethylene wrap will be made at the Contract unit price for:

Item No. 0602, "Watermain Connection" of Option A; and

Item No. 0804, "Watermain Connection" of Option B, as applicable.

1.2.12.2 Measurement

The number of watermain connections as counted in the field by the Contractor and approved by the Contracting Officer.

1.2.12.3 Unit of Measure

Unit of measure: each

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

-- End of Section --

SECTION 01 20 00 Page 9

DIVISION 31 - EARTHWORK

SECTION 31 00 00

EARTHWORK

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.2.1 Topsoil

1.2.2 Utility Bedding Material

1.2.3 Flowable Fill

1.2.4 Satisfactory Materials

1.2.5 Unsatisfactory Materials

1.2.6 Cohesionless Materials

1.2.7 Unstable Material

1.2.8 Expansive Soils

1.2.9 Degree of Compaction (Proctor)

1.2.10 Degree of Compaction (Relative Density)

1.2.11 Subgrade

1.3 SUBSURFACE DATA

1.4 CRITERIA FOR BIDDING

1.5 SUBMITTALS

1.6 QUALITY CONTROL

1.6.1 Qualified Technician

1.6.2 Lab Validation

1.6.3 Preconstruction Meeting

PART 2 PRODUCTS

2.1 SOIL MATERIALS

2.1.1 Porous Fill

2.1.2 Topsoil

2.1.3 Utility Bedding Material

2.1.3.1 Class II

2.1.3.2 Sand

2.1.3.3 Gravel and Crushed Stone

2.2 FLOWABLE FILL

2.3 BURIED WARNING AND IDENTIFICATION MARKERS

2.3.1 Warning Tape for Metallic Piping

PART 3 EXECUTION

3.1 PROTECTION

3.1.1 Underground Utilities

3.1.2 Drainage and Dewatering

3.1.2.1 Drainage

3.1.2.2 Dewatering

3.1.3 Shoring and Sheeting

3.1.4 Protection of Graded Surfaces

3.2 EXCAVATION

SECTION 31 00 00 Page 1

3.2.1 Trench Excavation Requirements

3.2.1.1 Bottom Preparation

3.2.1.2 Removal of Unyielding Material

3.2.1.3 Removal of Unstable Material

3.2.1.4 Excavation for Appurtenances

3.2.1.5 Water Lines

3.2.2 Underground Utilities

3.3 SUBGRADE PREPARATION

3.3.1 General Requirements

3.3.2 Subgrade for Structures, Spread Footings, and Concrete Slabs

3.3.3 Subgrade for Pavements

3.3.4 Subgrade for Shoulders

3.4 FILLING AND COMPACTION

3.4.1 Trench Backfill

3.4.1.1 Replacement of Unyielding Material

3.4.1.2 Replacement of Unstable Material

3.4.1.3 Bedding and Initial Backfill

3.4.1.4 Final Backfill

3.4.1.4.1 Pavements

3.4.1.5 ***AMND 0001*** Deleted

3.4.1.6 Buried Tape And Detection Wire

3.4.1.6.1 Buried Warning and Identification Tape

3.4.2 Structural Fill Placement

3.4.3 Flowable Fill

3.4.4 Compaction

3.4.4.1 General Site

3.4.4.2 Adjacent Areas

3.5 FINISHING/FINISH OPERATIONS

3.5.1 Grading Around Structures

3.5.2 Grading

3.5.3 Topsoil and Seed

-- End of Section Table of Contents --

SECTION 31 00 00 Page 2

SECTION 31 00 00

EARTHWORK

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C33/C33M (2024a) Standard Specification for Concrete Aggregates

ASTM C117 (2023) Standard Test Method for Materials Finer than 75-um (No. 200) Sieve in Mineral Aggregates by Washing

ASTM C136/C136M (2025) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM C150/C150M (2024) Standard Specification for Portland Cement

ASTM C260/C260M (2024) Standard Specification for Air-Entraining Admixtures for Concrete

ASTM C618 (2025a) Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

ASTM C989/C989M (2025) Standard Specification for Slag Cement for Use in Concrete and Mortars

ASTM D698 (2012; R 2021) Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/cu. ft. (600 kN-m/cu. m.))

ASTM D1140 (2017) Standard Test Methods for Determining the Amount of Material Finer than 75-µm (No. 200) Sieve in Soils by Washing

ASTM D2487 (2017; R 2025) Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D4253 (2016; E 2019) Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table

SECTION 31 00 00 Page 3

ASTM D4254 (2016) Standard Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density

ASTM D4318 (2017; E 2018) Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils

ASTM D4829 (2021) Standard Test Method for Expansion Index of Soils

ASTM D4832 (2016; E 2018) Standard Test Method for Preparation and Testing of Controlled Low Strength Material (CLSM) Test Cylinders

ASTM D5268 (2019) Topsoil Used for Landscaping Purposes

ASTM D6023 (2016) Standard Test Method for Density (Unit Weight), Yield, Cement Content, and Air Content (Gravimetric) of Controlled Low-Strength Material (CLSM)

ASTM D6103/D6103M (2017; E 2021) Standard Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)

ILLINOIS DEPARTMENT OF TRANSPORTATION (ILDOT)

ILDOT (2022) Standard Specifications for Road and Bridge Construction

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2024) Safety -- Safety and Occupational Health (SOH) Requirements

1.2 DEFINITIONS

1.2.1 Topsoil

Surface layer of primarily organic soil capable of supporting vegetation growth.

1.2.2 Utility Bedding Material

Fill placed to directly support pipes, conduits, cables, and appurtenant structures. Bedding may also be used to provide a cushion between utilities and bedrock, obstacles, obstructions and other unyielding materials.

1.2.3 Flowable Fill

Fill placed in a plastic or liquid form that flows to near its final placement location with limited assistance and subsequently cures or solidifies to provide a stable or impermeable barrier.

SECTION 31 00 00 Page 4

1.2.4 Satisfactory Materials

Satisfactory materials for fill, backfill, or any in-situ soils to remain in place comprise any materials classified by ASTM D2487 as GW, GP, GM, GP-GM, GW-GM, SW, SP, SM, SW-SM, SP-SM. Maximum particle size to be no greater than one-half of the allowable lift thickness or 3 inches in any dimension.

1.2.5 Unsatisfactory Materials

Materials which do not comply with the requirements for satisfactory materials are unsatisfactory. Unsatisfactory materials also include man-made fills, trash, refuse, backfills from previous construction, roots, and other organic matter or frozen material. Notify the Contracting Officer when encountering any contaminated materials.

1.2.6 Cohesionless Materials

Cohesionless materials include materials classified in ASTM D2487 as GW, GP, SW, and SP. Materials classified as GM and SM will be identified as cohesionless only when the fines are nonplastic. Perform testing, required for classifying materials, in accordance with ASTM D4318, ASTM C117, ASTM C136/C136M, and ASTM D1140.

1.2.7 Unstable Material

Unstable materials are too weak to adequately support the utility pipe, conduit, equipment, or appurtenant structure. Satisfactory material may become unstable due to ineffective drainage, dewatering, becoming frozen or excessive loading.

1.2.8 Expansive Soils

Expansive soils are defined as soils that have an expansion index greater than 20 when tested in accordance with ASTM D4829.

1.2.9 Degree of Compaction (Proctor)

Degree of compaction required, is expressed as a percentage of the maximum dry density obtained by the test procedure presented in ASTM D698 abbreviated as a percent of laboratory maximum dry density.

1.2.10 Degree of Compaction (Relative Density)

Degree of compaction required for soils with less than 5 percent passing the No. 200 sieve, is expressed as a relative percentage of the maximum index density/dry unit weight and minimum index density/dry unit weight, obtained by the test procedures in accordance with ASTM D4253 and ASTM D4254, respectively, abbreviated as a percent of laboratory relative density.

1.2.11 Subgrade

Earth materials directly below foundations and directly below granular base materials in building slab and pavement areas including shoulders.

1.3 SUBSURFACE DATA

Subsurface soil boring logs are shown in project plans. These data

SECTION 31 00 00 Page 5 represent available subsurface information; however, variations may exist between boring locations.

1.4 CRITERIA FOR BIDDING

Base bids on the following criteria:

a. Surface elevations are as indicated.

b. Ground water elevations indicated by the boring log were those existing at the time subsurface investigations were made and do not necessarily represent ground water elevation at the time of construction.

c. Material character is indicated by the boring logs.

d. Hard materials will be encountered below existing surface elevations.

1.5 SUBMITTALS

Government approval is required for submittals with a "G" classification.

Submittals not having a "G" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Excavation and Trenching Plan ; G ECG

Dewatering Work Plan ; G ECG

Preconstruction Meeting ; G

SD-03 Product Data

Flowable Fill Mix Design ; G ECG

1.6 QUALITY CONTROL

1.6.1 Qualified Technician

Provide a Qualified Technician to inspect, monitor, sample, and performing field testing. The technician qualifications need to be one of the following: a current National Institute for Certification in Engineering Technologies (NICET) Level II minimum certification in Construction Materials Testing Soils, a Geologist-in-Training with minimum one-year experience, an Engineer-in-Training with minimum one-year experience, a Registered Geologist, or a Professional Engineer.

1.6.2 Lab Validation

Perform testing by a Corps validated commercial testing laboratory or Contractor established testing laboratory meeting the requirements of Section 01 45 04 CONTRACTOR QUALITY CONTROL and approved by the Contracting Officer. Submit testing laboratory validation for the testing to be performed. Do not permit work requiring testing until testing facilities have been inspected, Corps validated, and approved by the Contracting Officer.

SECTION 31 00 00 Page 6

1.6.3 Preconstruction Meeting

Conduct a preconstruction meeting at the jobsite at least five business days prior to the start of earthwork operations on the project. The preconstruction meeting is to be arranged by the Contractor and is to follow the written agenda submitted prior to the meeting. The purpose of this meeting is to review the requirements of this specification and the associated plans. The following individuals must be in attendance at this meeting: Contractor's Project Manager and Project Superintendent, earthwork subcontractor's Project Manager and Site Foreman, Contractor's Geotechnical Engineer and Testing Agency, Government Geotechnical Engineer and Civil Engineer, and Government Construction Manager and Engineering Technician.

The minutes of this meeting are to be recorded by the Contractor and published via email within 48 hours to all attendees. The minutes must be re-published within 48 hours via email pending any subsequent comments from the attendees.

PART 2 PRODUCTS

2.1 SOIL MATERIALS

2.1.1 Porous Fill

Materials containing less than 5 percent passing the No. 200 sieve.

Provide the gradation as appropriate for the intended purpose.

2.1.2 Topsoil

Material suitable for topsoil obtained from stripping operations excavations are defined as: Natural, friable soil representative of productive, well-drained soils in the area, free of subsoil, stumps, rocks larger than one inch diameter, brush, weeds, toxic substances, and other material detrimental to plant growth. Amend topsoil pH range to obtain a pH of 5.5 to 7. Topsoil material will be in accordance with ASTM D5268 or as stripped from the site for reuse.

2.1.3 Utility Bedding Material

Except as specified otherwise in the individual piping section, provide bedding for fire hydrants per Village of Arlington Heights regulations.

Utility bedding material to consist of IL DOT CA-6 beneath manholes and for hydrants or CA-7 for water mains. Material not specfically called out may include the following:

2.1.3.1 Class II

Coarse sands and gravels with maximum particle size of 1.5 inch , including various graded sands and gravels containing small percentages of fines, generally granular and noncohesive, either wet or dry. Soil Types GW, GP, SW, and SP are included in this class as specified in ASTM D2487.

2.1.3.2 Sand

Clean, coarse-grained sand, of the ILDOT State Standard or SW or SP by ASTM D2487 for bedding and backfill.

SECTION 31 00 00 Page 7

2.1.3.3 Gravel and Crushed Stone

Clean, coarsely graded natural gravel, crushed stone or a combination thereof identified as meeting the ILDOT State Standard or having a classification of GP in accordance with ASTM D2487 for bedding and backfill as indicated. Do not exceed maximum particle size of 3 inches .

2.2 FLOWABLE FILL

Design and submit flowable fill mix design to consist of Portland cement, fly ash, or slag cement, and fine aggregate. Include the dry weights of cementitious material(s); quality and gradation of aggregates in the saturated surface-dry weights along with gradation tests; quantities, types, and names of admixtures; and quantity of water per cubic yard. The unconfined compressive strength to be 50 to 150 psi at 28 days in accordance with ASTM D4832. The aggregates in accordance with ASTM C33/C33M Fine Aggregates. Air-entrain fill in accordance with ASTM C260/C260M. The air content to be between 8 and 15 percent in accordance with ASTM D6023. The flow to be between 8 and 12 inches in accordance with ASTM D6103/D6103M . Portland cement to be Type I or II in accordance with ASTM C150/C150M. Fly ash to be Class C in accordance with ASTM C618. Provide slag cement in Grade 100 or 120 in accordance with

ASTM C989/C989M.

2.3 BURIED WARNING AND IDENTIFICATION MARKERS

Provide polyethylene plastic and metallic core or metallic-faced, acid-and alkali-resistant, polyethylene plastic warning tape manufactured specifically for warning and identification of buried utility lines.

Provide tape on rolls, 3 inches minimum width, color coded as specified below for the intended utility with warning and identification imprinted in bold black letters continuously over the entire tape length. Warning and identification to read, "CAUTION, BURIED (intended service) LINE BELOW" or similar wording. Provide permanent color and printing, unaffected by moisture or soil.

Warning Tape Color Codes

Red Electric

Yellow Gas, Oil; Dangerous Materials

Orange Telephone and Other Communications

Blue Water Systems

Green Sewer Systems

White Steam Systems

Gray Compressed Air

2.3.1 Warning Tape for Metallic Piping

Provide acid and alkali-resistant polyethylene plastic tape conforming to the width, color, and printing requirements specified above, with a

SECTION 31 00 00 Page 8 minimum thickness of 0.003 inch and a minimum strength of 1,500 psi lengthwise, and 1,250 psi crosswise, with a maximum 350 percent elongation.

PART 3 EXECUTION

3.1 PROTECTION

Perform all work specified in accordance with applicable requirements of the Corps of Engineers publication EM 385-1-1 Safety and Health Requirements Manual.

Use equipment of type and size appropriate for the site conditions (soil character and moisture content). Maintenance of exposed subgrades and fills is the responsibility of the Contractor. The Contractor is required to prevent damage by ineffective drainage, dewatering, and heavy loads and equipment by implementing precautionary measures. Repair or replace any defects or damage.

3.1.1 Underground Utilities

Location of the existing utilities indicated is approximate. Physically verify the location and elevation of the existing utilities indicated prior to starting construction. The Contractor is responsible for protecting utilities from damage during construction.

3.1.2 Drainage and Dewatering

Provide for the collection and disposal of surface and subsurface water encountered during construction.

3.1.2.1 Drainage

Provide and maintain positive surface water runoff from the construction area throughout construction activities. Install temporary ditches, swales, pumps, or other drainage measures as required to prevent soils from becoming unstable, minimize erosion, and prevent undermining of excavations and foundations. Remove unstable material from working platforms and other disturbed areas and replace with suitable material as specified herein. The Contractor is responsible for assessing site conditions and implementing all necessary drainage and stabilization measures to safely and effectively perform the work.

3.1.2.2 Dewatering

Control groundwater flowing toward or into excavations to prevent sloughing of excavation slopes and walls, boils, uplift and heave in the excavation and to eliminate interference with orderly progress of construction. French drains, sumps, ditches or trenches are not allowed within 3 feet of the foundation of any structure, except with specific written approval, and after specific contractual provisions for restoration of the foundation area have been made. Perform control measures by the time the excavation reaches the water level in order to maintain the integrity of the in-situ material. While the excavation is open, maintain the water level continuously, at least 2 feet below the working level. Submit a Dewatering Work Plan outlining procedures for accomplishing dewatering work. Operate dewatering system continuously until construction work below existing water levels is complete. Measure and record performance of dewatering system at same time each day.

SECTION 31 00 00 Page 9

3.1.3 Shoring and Sheeting

Submit an Excavation and Trenching Plan to stabilize features, prevent undermining or unintended horizontal and vertical movement of adjacent structures, and prevent slippage or movement in banks or slopes adjacent to the excavation. Submit drawings and calculations, certified by a registered professional engineer, describing the methods for shoring and sheeting of excavations. Drawings to include material sizes and types, arrangement of members, and the sequence and method of installation and removal. Calculations are to include data and references used.

3.1.4 Protection of Graded Surfaces

Protect newly backfilled, graded, and topsoiled areas from traffic, erosion, and settlements that may occur. Repair or reestablish damaged grades, elevations, or slopes.

3.2 EXCAVATION

Excavate to contours, elevation, and dimensions indicated. Excavate soil disturbed or weakened by Contractor's operations, and soils softened or made unstable for subsequent construction due to exposure to weather. Use material removed from excavations meeting the specified requirements in the construction of fills, embankments, subgrades, shoulders, bedding (as backfill), and for similar purposes to minimize surplus material and to minimize additional aggregate material to be brought on site. Do not excavate below indicated depths except to remove unstable material as determined by the Government and confirmed by the Contracting Officer.

Remove and replace excavations below the grades shown with appropriate materials as directed by the Contracting Officer.

If at any time during excavation, the Contractor encounters material that may be classified as rock or as hard/unyielding material, uncover such material, and notify the Contracting Officer. Do not proceed with the excavation of this material until the Contracting Officer has classified the materials as common excavation or rock excavation. Failure on the part of the Contractor to uncover such material, notify the Contracting Officer, and allow sufficient time for classification and delineation of the undisturbed surface of such material will cause the forfeiture of the Contractor's right of claim to any classification or volume of material to be paid for other than that allowed by the Contracting Officer for the areas of work in which such deposits occur.

3.2.1 Trench Excavation Requirements

Excavate the trench as recommended by the manufacturer of the pipe to be installed. Slope trench walls below the top of the pipe, or make vertical, and of such width as recommended by the manufacturer. Provide vertical trench walls where no manufacturer installation instructions are available. Do not exceed the trench width of 24 inches plus pipe outside diameter (O.D.) for pipes of less than 24 inches inside diameter, and do not exceed 36 inches plus pipe outside diameter for pipe sizes larger than 24 inches inside diameter. Where recommended trench widths are exceeded, provide redesign, stronger pipe, or special installation procedures. The Contractor is responsible for the cost of redesign, stronger pipe, or special installation procedures without any additional cost to the Government.

SECTION 31 00 00 Page 10

3.2.1.1 Bottom Preparation

Grade the bottoms of trenches accurately to provide uniform bearing and support for the bottom quadrant of each section of the pipe. Excavate bell holes to the necessary size at each joint or coupling to eliminate point bearing. Remove stones of 3 inches or greater in any dimension, or as recommended by the pipe manufacturer, whichever is smaller, to avoid point bearing.

3.2.1.2 Removal of Unyielding Material

Where unyielding material is encountered in the bottom of the trench, notify the Contracting Officer. Following approval, remove such material 4 inches below the required grade and replace with suitable materials as provided in paragraph FILLING AND COMPACTION.

3.2.1.3 Removal of Unstable Material

Where unstable material is encountered in the bottom of the trench, remove such material to the depth directed and replace it to the proper grade with suitable material as provided in paragraph FILLING AND COMPACTION.

When removal of unstable material is required due to the Contractor's fault or neglect in performing the work, the Contractor is responsible for excavating the resulting material and replacing it without additional cost to the Government.

3.2.1.4 Excavation for Appurtenances

Provide excavation for manholes, catch-basins, inlets, or similar structures sufficient to leave at least 12 inches clear between the outer structure surfaces and the face of the excavation or support members.

3.2.1.5 Water Lines

Excavate trenches to a depth that provides a minimum cover of 5 feet 6 inches from the existing ground surface, or from the indicated finished grade, whichever is lower, to the top of the pipe.

3.2.2 Underground Utilities

Perform work adjacent to utilities as indicated. Excavation made with power-driven equipment is not permitted within 2 feet of known utility or subsurface construction. For work immediately adjacent to or for excavations exposing a utility or other buried obstruction, excavate by hand. Start hand excavation on each side of the indicated obstruction and continue until the obstruction is uncovered or until clearance for the new grade is assured. Support uncovered lines or other existing work affected by the Contract excavation until approval for backfill is granted by the Contracting Officer. Report damage to utility lines or subsurface construction immediately to the Contracting Officer.

3.3 SUBGRADE PREPARATION

3.3.1 General Requirements

Shape the subgrade to the lines, grades, and cross sections indicated.

Remove all unsuitable or unstable material encountered at the surface or within excavated areas and replace with approved structural fill. Do not place fill on surfaces that are muddy, frozen, contain frost, standing

SECTION 31 00 00 Page 11 water, or are otherwise unsuitable to support the work. Where side slopes are steeper than 1 vertical to 4 horizontal, provide benching as necessary to ensure stability and proper bonding of the fill. Place structural fill in uniform lifts and compact in accordance with the project specifications. Where the subgrade consists of both existing ground and previously placed fill, ensure the materials are shaped and compacted to provide a uniform and stable foundation for the waterline installation.

3.3.2 Subgrade for Structures, Spread Footings, and Concrete Slabs

Do not excavate below depth shown for structures, spread footings, and concrete slabs. If over excavation occurs, notify the Contracting Officer and remove, replace, and compact as directed. Compact disturbed material to 95 percent of ASTM D698. After final rolling, the surface of the subgrade for buildings and pavements must not show deviations greater than

0.05 foot when tested with a 10-foot straightedge applied both parallel and at right angles to the centerline of the area.

3.3.3 Subgrade for Pavements

Compact top 12 inches of subgrade for pavements to at least 95 percent of ASTM D698. After final rolling, the surface of the subgrade for buildings and pavements must not show deviations greater than 0.05 foot when tested with a 10-foot straightedge applied both parallel and at right angles to the centerline of the area.

3.3.4 Subgrade for Shoulders

Compact the upper 6 inches of subgrade for shoulders to at least 95 percent of ASTM D698 for the full depth of the shoulder.

3.4 FILLING AND COMPACTION

Prepare the ground surface on which backfill is to be placed and provide compaction of backfill materials in accordance with the applicable requirements for subgrade preparation. Do not place material on surfaces that are muddy, frozen, or contain frost. Due to the limited width of the waterline excavation, compact backfill using walk-behind compaction equipment, such as vibratory plate compactors, trench rollers, jumping jack rammers, or other approved equipment suitable for the soil being compacted and the trench dimensions.

Moisten material as necessary to provide the moisture content of minus 2 to plus 3 percent of optimum, that will readily facilitate obtaining the specified compaction with the equipment used. Fill and backfill to contours, elevations, and dimensions indicated. Compact and test each lift before placing overlaying lift.

3.4.1 Trench Backfill

Backfill trenches to the grade shown. Backfill the trench to 2 feet above the top of pipe prior to performing the required pressure tests. Leave the joints and couplings uncovered during the pressure test.

3.4.1.1 Replacement of Unyielding Material

Replace unyielding material removed from the bottom of the trench with satisfactory material or initial backfill material.

SECTION 31 00 00 Page 12

3.4.1.2 Replacement of Unstable Material

Replace unstable material removed from the bottom of the trench or excavation with satisfactory material placed in layers not exceeding 6 inches loose thickness.

3.4.1.3 Bedding and Initial Backfill

Provide bedding of the type and thickness shown. Place initial backfill material and compact it with approved tampers to a height of at least one foot above the utility pipe or conduit. Bring up the backfill evenly on both sides of the pipe for the full length of the pipe. Take care to ensure thorough compaction of the fill under the haunches of the pipe.

Except where shown or when specified otherwise in the individual piping section, provide bedding for buried piping in accordance with PART 2 paragraph UTILITY BEDDING MATERIAL. Compact backfill to top of pipe to 95 percent of ASTM D698 maximum dry density.

3.4.1.4 Final Backfill

Do not begin backfill until construction below finish grade has been approved, underground utilities systems have been inspected, tested and approved, forms removed, and the excavation cleaned of trash and debris.

Bring backfill to indicated finish grade. Where pipe is coated or wrapped for protection against corrosion, the backfill material up to an elevation 2 feet above sewer lines and 1 foot above other utility lines needs to be free from stones larger than 1 inch in any dimension. Heavy equipment for spreading and compacting backfill are not to be operated closer to foundation or retaining walls than a distance equal to the height of backfill above the top of footing; compact remaining area in layers not more than 4 inches in compacted thickness with power-driven hand tampers suitable for the material being compacted. Place backfill carefully around pipes or tanks to avoid damage to coatings, wrappings, or tanks.

Do not place backfill against foundation walls prior to 7 days after completion of the walls. As far as practicable, bring backfill up evenly on each side of the wall and sloped to drain away from the wall.

Fill the remainder of the trench, except for special materials for buildingsand pavements with satisfactory material. Place backfill material and compact as follows:

3.4.1.4.1 Pavements

Place backfill up to the required elevation as specified. Do not permit water flooding or jetting methods of compaction.

3.4.1.5 ***AMND 0001*** Displacement of Features Deleted

After other required tests have been performed and the trench backfill compacted to 2 feet above the top of the pipe, inspect the pipe to determine whether unexpected or damaging displacement has occurred.

Conduct walk-through inspection of pipe sizes larger than 48 inches .

Inspect pipes smaller than 48 inches using remote methods using closed circuit television, sonar, or hybrid that can provide a 360-degree inspection of the pipe.

SECTION 31 00 00 Page 13

3.4.1.6 Buried Tape And Detection Wire

3.4.1.6.1 Buried Warning and Identification Tape

Provide buried utility lines with utility identification tape. Bury tape 12 inches below finished grade; under pavements and slabs, bury tape 6 inches below top of subgrade.

3.4.2 Structural Fill Placement

Place fill and backfill beneath and adjacent to structures in successive horizontal layers of loose material not more than 8 inches in depth, or in loose layers not more than 4 inches in depth when using hand-operated compaction equipment. Do not place over wet or frozen materials. Compact to at least 90 percent of laboratory maximum dry density for cohesive materials or 95 percent of laboratory maximum dry density for cohesionless materials, except as otherwise specified. Perform compaction in such a manner as to prevent wedging action or eccentric loading upon or other damage to the structure. Moisture condition fill and backfill material to a moisture content that will readily facilitate obtaining the specified compaction within range of plus 2 or minus 2 percent of optimum moisture content at the time of compaction.

3.4.3 Flowable Fill

Place fill in a manner to completely fill voids in the location indicated. Do not place when atmospheric temperatures are expected to be below 33 degrees F at any time during the 3 day period following placement.

3.4.4 Compaction

3.4.4.1 General Site

Compact adjacent to manholes, using hand-operated or mechanically operated small compaction equipment suitable for confined areas where conventional rollers cannot adequately operate. Compact underneath areas designated for vegetation and areas outside the 5 foot line of the paved area or structure to 90 percent of ASTM D698.

3.4.4.2 Adjacent Areas

Compact areas within 5 feet of structures to 95 percent of ASTM D698.

3.5 FINISHING/FINISH OPERATIONS

During construction, keep embankments and excavations shaped and drained.

Maintain ditches and drains along subgrade to drain effectively at all times. Do not disturb the finished subgrade by traffic or other operation. Protect and maintain the finished subgrade in a satisfactory condition until ballast, subbase, base, or pavement is placed. Do not permit the storage or stockpiling of materials on finished subgrade. Do not lay subbase, base course, ballast, or pavement until the subgrade has been checked and approved, and in no case place subbase, base, surfacing, pavement, or ballast on a muddy, spongy, frozen or otherwise unstable subgrade.

Finish the surface of excavations, embankments, and subgrades to a smooth and compact surface in accordance with the lines, grades, and cross sections or elevations shown. Provide the degree of finish for graded

SECTION 31 00 00 Page 14 areas within 0.1 foot of the grades and elevations indicated except as indicated for subgrades specified in paragraph SUBGRADE PREPARATION.

Finish gutters and ditches in a manner that will result in effective drainage. Finish the surface of areas to be turfed to a smoothness suitable for the application of turfing materials. Repair graded, topsoiled, or backfilled areas prior to acceptance of the work, and re-established grades to the required elevations and slopes.

3.5.1 Grading Around Structures

Construct areas within 5 feet outside of each building and structure line true-to-grade, shape to drain, and maintain free of trash and debris until final inspection has been completed and the work has been accepted.

3.5.2 Grading

Finish grades as indicated within one-tenth of one foot . Grade areas to drain water away from structures. Maintain areas free of trash and debris. For existing grades that will remain but which were disturbed by Contractor's operations, grade as directed.

3.5.3 Topsoil and Seed

On areas to receive topsoil, prepare the compacted subgrade soil to a depth of 2 inches for bonding of topsoil with subsoil. Spread topsoil evenly to a thickness of 6 inches and grade to the elevations and slopes shown. Do not spread topsoil when frozen or excessively wet or dry. Keep topsoil separate from other excavated materials, brush, litter, objectionable weeds, roots, stones larger than 2 inches in diameter, and other materials that would interfere with planting and maintenance operations.

-- End of Section --

SECTION 31 00 00 Page 15

DIVISION 33 - UTILITIES

SECTION 33 05 23

UTILITY HORIZONTAL DIRECTIONAL DRILLING (HDD) WATER LINES

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 WORK DESCRIPTION

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 QUALIFICATIONS

1.6 SAFETY

1.7 HORIZONTAL DIRECTIONAL DRILLING PLAN

PART 2 PRODUCTS

2.1 EQUIPMENT

2.1.1 Drill Rod

2.1.2 Directional Drilling Machine

2.1.3 Vacuum Excavation Unit

2.1.4 Drilling Fluid Management System

2.2 MATERIALS

2.2.1 Ductile Iron Pipe

2.2.1.1 Thickness

2.2.1.2 Joint

2.2.1.3 Pipe Lining

2.2.1.4 Coating

2.2.1.5 Pipe Section Length

2.2.1.6 Fittings

2.2.1.7 ***AMND 0001 Deleted

2.2.2 Drilling Fluids

2.2.3 Additives

PART 3 EXECUTION

3.1 EXAMINATION

3.1.1 Soil Test Data

3.2 PREPARATION

3.3 INSTALLATION

3.4 BORE TRACKING AND MONITORING

3.5 DRILL ENTRANCE AND EXIT PITS

3.6 DRILL ENTRANCE AND EXIT ANGLE

3.7 PILOT HOLE

3.8 GUIDANCE SYSTEMS

3.9 REAMING

3.10 PULL BACK

3.11 DRILLING FLUIDS DISPOSAL

3.12 CONNECTION OF PRODUCT PIPE TO PIPELINE

3.13 FIELD QUALITY CONTROL

3.13.1 Daily Work Log

3.13.2 Drill Logs

3.13.3 Field Tests

SECTION 33 05 23 Page 1

3.14 CLEANUP AND FINAL CLOSEOUT

-- End of Section Table of Contents --

SECTION 33 05 23 Page 2

SECTION 33 05 23

UTILITY HORIZONTAL DIRECTIONAL DRILLING (HDD) WATER LINES

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO T 180 (2025) Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop

AMERICAN WATER WORKS ASSOCIATION (AWWA)

AWWA C104/A21.4 (2022) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

AWWA C110/A21.10 (2021) Ductile-Iron and Gray-Iron Fittings

AWWA C111/A21.11 (2023) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings

AWWA C150/A21.50 (2021; R 2023) Thickness Design of Ductile-Iron Pipe

AWWA C151/A21.51 (2023) Ductile-Iron Pipe, Centrifugally Cast

AWWA C153/A21.53 (2019) Ductile-Iron Compact Fittings for Water Service

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1926.652 Safety and Health Regulations for Construction; Subpart P, Excavations;

Requirements for Protective Systems

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Qualifications ; G ECG

SECTION 33 05 23 Page 3

Horizontal Directional Drilling Plan ; G ECG

SD-03 Product Data

Ductile Iron Pipe ; G ECG

Drilling…