OK17-U77 ELA Part II SPECS.pdf

Author: Andrew Banta File: WLX Page 1 of 82

SECTION 00 01 01.0000

PROJECT TITLE PAGE

SANITATION FACILITIES CONTRUCTION

LAWATER LINE EXTENSION

FOR

TOWN OF SLICK

CREEK COUNTY, OKLAHOMA

PROJECT NUMBER OK 17-U77

EXCHANGE LETTER AMENDMENT PART II

SPECIFICATIONS

U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES

INDIAN HEALTH SERVICE

OKLAHOMA CITY AREA INDIAN HEALTH SERVICE

OFFICE OF ENVIRONMENTAL HEALTH AND ENGINEERING

DIVISION OF SANITATION FACILITIES CONSTRUCTION

OKMULGEE OEH&E FIELD OFFICE

Permit Number:

Date Received:

WL000019200263-R

May 14 2020

STATE OF OKLAHOMA

Department of Environmental Quality

APPROVED

Rocky W. Chen, P.E.

Water Quality Division

Isaac Cornelson, E.I.

Construction Permitting Section

May 15 2020

SECTION 00 01 07.0000

SEALS PAGE

APPLY SEAL WITH DATE AND SIGN

I certify under penalty of law that this document and all attachments were prepared under my direction or direct supervision.

Author: Andrew

Banta File: WLX

CONT ACT INFORMATION

Javier B. Franco, P.E., District Engineer Oklahoma City Area Indian Health Service

Office of Environmental Health and Engineering Division of Sanitation Facilities Construction

PO Box 67 Okmulgee, OK 74447

Telephone Number: 918-752-3173

Page 2 of82

SECTION 00 01 10.0000

TABLE OF CONTENTS

SECTION NUMBER - TITLE

Section 00 01 00.0000 - Project Title Page

Section 00 01 07.0000 - Seal Page

Section 00 01 10.0000 - Table of Contents

Section 00 01 15.0000 - List of Drawing Sheets

Section 01 11 00.0000 – Summary of Work

Section 01 22 00.0000 – Unit Prices

Section 01 31 00.0000 – Project Management and Coordination

Section 01 33 00.0000 – Submittal Procedures

Section 01 33 23.0000 – Shop Drawings

Section 01 42 19.0000 – Reference Standards

Section 01 43 00.0000 – Quality Assurance

Section 01 77 00.0000 – Closeout Procedures

Section 01 78 00.0000 – Closeout Submittals

Section 01 78 01.0000 – Warranties

Section 03 30 53.0000 – Miscellaneous Cast-In- Place Concrete

Section 31 22 13.0000 – Rough Grading

Section 31 22 16.0000 – Fine Grading

Section 31 23 16.1300 – Trenching

Section 31 23 16.2600 – Rock Removal

Section 31 23 23.1300 – Backfill

Section 31 23 23.2300 – Compaction

Section 33 11 13.0001 – Public Water Distribution Piping Disinfection

Section 33 11 13.2500 – Public Water Distribution Piping Polyethylene Pipe

Section 33 12 16.1038 – Public Water Utility Distribution Gate Valves

Section 33 12 16.0001 – Public Water Utility Air Relief Valves

Section 33 12 19.1000 – Public Water Utility Distribution Flush Hydrant

File: WLX

File: WLX Page 4 of 83

File: WLX Page 5 of 83

SECTION 00 01 15.0000

LIST OF DRAWING SHEETS

SHEET NUMBER TITLE

1 Cover Sheet & Location Map 2 Notes & Symbols 3 Plan Layout 4 Standard Details

File: WLX Page 6 of 83

SECTION 01 11 00.0000

SUMMARY OF WORK

Part 1 GENERAL

1.01 SUMMARY

A. Provide the following to complete the work in these Specifications and Contract Drawings:

1. Tools.

2. Equipment.

3. Materials.

4. Labor.

5. Supplies.

6. Manufactured articles.

7. All transportation to complete the work.

8. Temporary facilities.

B. Incidentals Items: Furnish all work, materials, and services not expressly provided by others or not expressly called for in the contract, but which are necessary for the completion of the work.

1.02 SITE LOCATION

A. Location:

1. The project is located south and west of the Town of Slick.

Legal Description: S/2 N/2 of Section 18, Township 15N, Range 10E, Creek County, Oklahoma.

The physical address of the existing home to be served is 26819 South 273rd West Avenue, Slick, OK 74071.

1.03 SUMMARY OF WORK TO BE DONE BY CONTRACTOR

A. Install approximately 4,960 linear feet of 3-inch DR9 HDPE water main line, fittings, gate valves, air relief valve, flush hydrant and other appurtenance specified in the contract drawings to serve one home.

1.04 ADDITIONAL INFORMATION

File: WLX Page 7 of 83

A. For technical questions contact:

Javier Franco, P.E., District Engineer Andrew Banta, Project Engineer Indian Health Service Indian Health Service Okmulgee OEHE Okmulgee OEHE PO Box 67 PO Box 67 Okmulgee, OK 74447 Okmulgee, OK 74447 Office: 918-752-3173 Office: 918-752-3172 Email: javier.franco@ihs.gov Email: andrew.banta@ihs.gov

PRODUCTS (Not Used)

EXECUTION (Not Used)

END OF SECTION

File: WLX Page 8 of 83

SECTION 01 22 00.0000

UNIT PRICES

GENERAL

1.01 SUMMARY

A. Work covered by this section includes:

1. Method of measurement.

2. Basis of payment.

1.02 PAYMENT

A. Payment is for completed and accepted work, including incidentals, performed in strict accordance with the drawings and specifications.

B. Unless otherwise noted, mobilization and demobilization of equipment are included in the bid price of each item.

C. Payment includes:

1. Mobilization and demobilization of equipment and materials.

2. Labor.

3. Materials.

4. Equipment.

5. Tools.

6. Testing equipment.

7. General requirement.

a. Submittals.

b. Record drawings.

c. Temporary facilities and controls.

d. Operation and maintenance manuals.

D. See individual sections for payment details.

PRODUCTS (not used).

File: WLX Page 9 of 83

EXECUTION (not used).

File: WLX Page 10 of 83

SECTION 01 31 00.0000

PROJECT MANAGEMENT AND COORDINATION

GENERAL

1.01 SUMMARY

A. Section includes construction scheduling and coordination.

PRODUCTS (Not applicable)

EXECUTION

3.01 PRE-CONSTRUCTION CONFERENCE

A. Representatives from the following must attend:

1. Prime Contractor

2. Project Engineer

3. Contracting Officer

B. Additional representatives, tribal government personnel, and subcontractors may attend.

C. The Contracting Officer will arrange the location, date, and time of the meeting.

D. The Contractor is responsible for notifying subcontractors of meeting time and date.

3.02 CONSTRUCTION SCHEDULE

A. Provide the Project Engineer with a written construction schedule including the anticipated start and completion dates of each major work item.

B. Present the schedule to the Project Engineer at the pre-construction meeting.

C. Notify the Project Engineer three full business days in advance of any start of construction.

D. Submit major changes to the schedule to the Project Engineer in writing.

File: WLX Page 11 of 83

SECTION 01 33 00.0000

SUBMITTAL PROCEDURES

GENERAL

1.01 SUMMARY

A. Section includes submittal procedures.

B. Related Requirements:

1. Section 01 78 00.0000 – Closeout Submittals.

PRODUCTS (Not Used).

EXECUTION

3.01 SUBMITTAL PROCEDURES

A. The required submittals are listed in PART 2 PRODUCTS of each section.

B. Provide one copy of each submittal to the Project Engineer.

1. Copies may be any one of the following:

a. Emailed:

1) Downloads from the manufacturer’s web site (preferred).

2) Scanned from hard copies (300 dpi black and white minimum).

b. Mailed:

1) Javier Franco, P.E., Okmulgee OEH&E, PO Box 67, Okmulgee, OK 74447.

C. Identify each cut sheet or shop drawing with the following information:

1. Contract or Purchase Order number.

2. Supplier.

3. Specification Section number.

D. Submit the following information (if applicable):

1. Manufacturer’s cut sheets: Show compliance with references (e.g. applicable ASTM, AWWA standards).

2. Laboratory results.

File: WLX Page 12 of 83

3. Any other information necessary to show compliance with the specifications.

E. Identify variations from the Contract Documents and product or system limitations that may be detrimental to successful performance of the completed work.

F. Identify and re-submit all changes made since previous submittal.

G. Distribute copies of approved submittals to concerned parties, (i.e. suppliers, sub-contractors).

H. Communicate in writing any inability to comply.

I. Allow three weeks for submittal approval.

J. Replace unapproved materials at the Contractor’s expense.

File: WLX Page 13 of 83

SECTION 01 33 23.0000

SHOP DRAWINGS

GENERAL

1.01 SUMMARY

A. Section includes shop drawings.

B. Related Requirements:

1. Section 01 33 00.0000 – Submittal Procedures.

2. Section 01 78 00.0000 – Closeout Submittals.

PRODUCTS (Not Used).

EXECUTION

3.01 SUBMITTAL PROCEDURES

A. The required shop drawings are listed in PART 2 - PRODUCTS of each section.

B. Provide one copy of each shop drawing to the Project Engineer.

C. Identify each shop drawing with the following information:

1. Contract or Purchase Order number.

2. Supplier or fabricator.

3. Specification Section number.

D. Submit the following information (if applicable):

1. Manufacturer’s cut sheets: Show compliance with references (e.g. applicable ASTM, AWWA standards).

2. Laboratory results.

3. Dimensional or shop drawings.

4. Any other information necessary to show compliance with the specifications.

E. Identify variations from the Contract Documents and product or system limitations that may be detrimental to successful performance of the completed work.

1. Communicate, in writing, any inability to comply.

F. Identify and re-submit all changes made since previous submittal.

File: WLX Page 14 of 83

G. Distribute copies of approved shop drawings to concerned parties, (i.e. suppliers, sub-contractors).

H. Allow three weeks for approval.

File: WLX Page 15 of 83

SECTION 01 42 19.0000

REFERENCE STANDARDS

GENERAL

1.01 SUMMARY

A. Section includes:

1. Organizations, associations, or appropriate agencies with jurisdiction that have references, standards, laws, or regulations cited in these specifications.

1.02 REFERENCES, STANDARDS, LAWS, OR REGULATIONS CITED IN THESE

SPECIFICATIONS

A. Use latest revision of all references, standards, laws, or regulations.

1.03 LIST OF ORGANIZATIONS, ASSOCIATIONS & AGENCIES

A. National Standards Organizations & Associations

American Association of State Highway and Transportation Officials (AASHTO) 444 North Capital Street NW, Suite 249 Washington DC, 20001

(202) 624-5800 www.aashto.org

American Concrete Institute (ACI) ACI International PO Box 9094 Farmington Hills, Michigan 48333-9094

(810) 848-3700 www.aci-int.org

American Society for Testing and Materials (ASTM) 100 bar Harbor Drive West Conshohocken, Pa 19428-2959

(610) 832-9585 www.astm.org

American Water Works Association (AWWA) 6666 West Quincy Avenue Denver, CO 80235

(303) 794-7711 www.awwa.org

National Electric Code (NEC) National Fire and Protection Association 1 Batterymarch Park Quincy, MA 02269-9959 1 888 632-2633 www.nec.com

National Electrical Manufacturer’s Association

(NEMA)

1300 North 17th Street Rosslyn, VA 22209

(703) 841-3200 www.nema.org

Underwriters’ Laboratories, Inc. UL 333 Pfingston Road Northbrook, IL 60062

(847) 272-8800 www.ul.com

File: WLX Page 16 of 83

B. Federal Agencies

Environmental Protection Agency (EPA) Region 6 1445 Ross Avenue Dallas, TX 75202 www.epa.gov/r6water/

Occupational Health and Safety Administration Region 6 (OSHA) 525 Griffin Street, Suite 602 Dallas, TX 75202 www.osha.gov

C. State Agencies

Oklahoma Department of Environmental Quality 707 N. Robinson P.O. Box 1677

OKC, OK 73102-6010

www.deq.state.ok.us

Oklahoma Water Resources Board 3800 North Classen Blvd.

Oklahoma City, OK 73118 405-530-8800 www.owrb.ok.gov

File: WLX Page 17 of 83

SECTION 01 43 00.0000

QUALITY ASSURANCE

GENERAL

1.01 SUMMARY

A. Section includes:

1. Prerequisites and procedures to assure the quality of construction.

B. Related Requirements:

1. Section 01 78 01.0000 – Warranties (if applicable).

1.02 QUALITY ASSURANCE

A. Perform work under the direction of personnel licensed in the state in which construction is located and where licensing of the trade is regulated by the state including, but not limited to:

1. Plumbing.

2. Well drilling.

3. Septic system installation.

4. HVAC.

5. Rock blasting.

6. Electrical work.

B. Control of Installation:

1. Perform work in accordance with the specifications.

2. Comply fully with manufacturers’ instructions.

C. If manufacturers’ instructions conflict with contract documents, request clarification from Project Engineer before proceeding.

D. Correct defective work to conform to the applicable specification.

1.03 DELIVERY, STORAGE, AND HANDLING

A. Inspect materials for acceptability when delivered to the site.

B. Store and handle materials to prevent damage.

jearnest Highlight

File: WLX Page 18 of 83

1.04 WARRANTY

A. Provide a minimum one-year warranty for all materials and labor, covering defects in the materials or deficiencies resulting from Contractor installation.

B. Provide additional warranties as required by other sections.

PRODUCTS (not used).

EXECUTION (not used).

File: WLX Page 19 of 83

SECTION 01 77 00.0000

CLOSEOUT PROCEDURES

GENERAL

1.01 SUMMARY

A. Section includes information on closeout procedures and site cleanup.

B. Related Requirements:

1. Section 01 78 00.0000 – Closeout Submittals.

1.02 ADMINISTRATIVE REQUIREMENTS

A. Final Inspection:

1. Send written certification that work is complete and ready for Final Inspection to the Project Engineer.

2. The Contracting Officer will schedule the Final Inspection at a day and time convenient to all parties.

3. Provide Record Drawings at the Final Inspection.

1.03 SITE CONDITIONS

A. Complete clean up before the Final Inspection.

B. Remove waste and erosions control devices, surplus materials, rubbish, and construction facilities from the site.

C. Punch List:

1. The Contracting Officer will provide a letter to the Contractor listing the deficiencies noted during the Final Inspection

2. Correct the deficiencies in conformance with the Specifications and Contract Drawings.

PRODUCTS (not used)

EXECUTION (not used)

File: WLX Page 20 of 83

SECTION 01 78 00.0000

CLOSEOUT SUBMITTALS

GENERAL

1.01 SUMMARY

A. Section includes:

1. The requirements for closeout submittals including:

a. Record drawings (as-builts)

b. Warranty information

c. General operation and maintenance information (if applicable)

B. Related Requirements:

1. Section 01 33 00.0000 – Submittal Procedures.

2. Section 01 77 00.0000 – Closeout Procedures.

1.02 DELIVERY

A. Provide all closeout submittals meeting this specification and specific requirements of each section.

1. Provide in required form.

2. Required before final payment is made.

1.03 DEFINITIONS

A. Record Drawing’s drawing showing:

1. The actual installation of facilities.

2. Changes from the plans with enough detail so that the facility can readily be located.

B. Swing Ties: Measurements from permanent easily located objects to an installed object.

PRODUCTS (not used)

EXECUTION

3.01 RECORD DRAWINGS

A. Provide record data in one of the following manners:

1. On a set of project drawings, neatly draw swing tie measurements and changes.

File: WLX Page 21 of 83

2. On separate 8½ by 11 sheets, neatly draw site sketches, structure sketches, etc., indicating the necessary information.

B. Provide two swing tie measurements to all buried utility objects that may need to be located in the future, including, but not limited to:

1. Gate valves.

2. Corporation stops.

3. Curb stops.

4. Water main fittings.

5. Couplings to existing water systems.

6. Utility crossings.

C. Provide offset measurements and depths for buried utilities (e.g. water main) installed parallel to roads.

D. Provide quantities of installed bid schedule items for individual facilities on 8½ X 11 sheets.

1. Project Engineer may supply standard IHS forms for use by the Contractor.

File: WLX Page 22 of 83

SECTION 01 78 01.0000

WARRANTIES

GENERAL

1.01 SUMMARY

A. Section includes:

1. Preparation and submittal

2. Time and schedule of submittals

1.02 RELATED SPECIFICATION

A. Section 01 33 00.0000 – Submittals

B. Section 01 77 00.0000 – Closeout Procedures

C. Section 01 78 00.0000 – Closeout Submittals

PRODUCTS (Not Applicable)

EXECUTION

3.01 PREPARATION OF SUBMITTALS

A. Obtain warranties executed in duplicate by responsible subcontractors, suppliers, and manufacturers, within ten business days after completion of the applicable item or work.

B. Unless otherwise approved, Warranty date is the Date of Substantial Completion.

C. Verify that documents contain full information required.

D. Specifically identify the warranty expiration date for each submittal. Retain warranties for the time specified for that submittal.

E. Submit under provisions of Section 01 78 00.0000 – Closeout Submittals.

3.02 TIME OF SUBMITTAL

A. For equipment or component parts of equipment put into service during construction, submit documents within ten business days after installation and approval by the Project Engineer.

B. Submit other documents within ten business days after Date of Substantial Completion and prior to final Application for Payment.

File: WLX Page 23 of 83

C. For items of work when acceptance is delayed beyond Date of Substantial Completion, submit within ten business days after acceptance, listing the date of acceptance as the beginning of the warranty period.

File: WLX Page 24 of 83

SECTION 03 30 53.0000

MISCELLANEOUS CAST-IN- PLACE CONCRETE

GENERAL

1.01 SUMMARY

A. This section includes provisions for miscellaneous cast-in-place concrete.

B. Related Requirements:

1. Section 33 11 31.2510 – Public Water Distribution Piping Polyvinyl Chloride Pipe.

2. Section 33 12 16.1038 – Public Water Utility Distribution Gate Valves.

1.02 PRICE AND PAYMENT PROCEDURE

A. The cost of the concrete is incidental to the item installed.

1. There is no separate payment for the concrete.

1.03 REFERENCES

A. ASTM C33 – Standard Specification for Concrete Aggregates.

B. ASTM C94 – Standard Specification for Ready Mix Concrete.

C. ASTM C144 – Standard Specification for Mortar Aggregate.

D. ASTM C150 – Standard Specification for Portland Cement.

E. ASTM A185 – Welded Steel Wire Fabric, Plain for Concrete Reinforcement.

F. ASTM A615 – Deformed and Plain Billet-Steel Bars for Concrete Reinforcement.

1.04 QUALITY ASSURANCE

A. Obtain cement and aggregate from the same source for all work.

B. Perform work in accordance with ACI 301.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Delivery:

1. Ready Mix Concrete:

a. Deliver and mix in accordance with ASTM C94.

File: WLX Page 25 of 83

B. Storage:

1. Prevent deterioration or intrusion of foreign matter.

PRODUCTS

2.01 MATERIALS

A. Cement: ASTM C150, Portland Cement Type – I.

B. Aggregates shall be clean, hard, tough, water sound and free of deleterious substances.

C. Mixing Water

1. Use potable water unless approved by Project Engineer.

D. Metal Reinforcement

1. Rebar: Conforming to ASTM A615

2. Welded Wire Fabric: Conform to ASTM A185

2.02 QUALITY CONTROL

A. Provide a compressive strength of 2,500 psi at 28 days unless otherwise noted on the Drawings.

EXECUTION

3.01 PREPARATON

A. Forms:

1. Conform to shapes, lines and dimensions of members as called for on the plans.

2. Sufficiently tight to prevent leakage of concrete.

3. Properly brace and tie.

B. Remove excess water before concrete is placed.

C. Moisten subgrade before placing concrete.

D. For job mixed concrete:

1. Mix the materials until they are uniformly distributed.

3.02 INSTALLATION

A. Placing Concrete

File: WLX Page 26 of 83

1. Place concrete in one continuous operation.

2. Remove supporting forms and shoring after members have acquired sufficient strength to support their weight and imposed loads safely.

3. Concrete temperature shall not be less than 45 degrees Fahrenheit at the time of placement.

a. Do not heat aggregates and water used for mixing to a temperature exceeding 120 degrees Fahrenheit.

3.03 PROTECTION

1. Maintain concrete temperature of not less than 45 degrees Fahrenheit, or more than 70 degrees Fahrenheit, for a period of four days.

2. Do not add chemical or other foreign material to the concrete mix.

File: WLX Page 27 of 83

SECTION 31 22 13.0000

ROUGH GRADING

GENERAL

1.01 SUMMARY

A. Section includes:

1. Rough and finished site grading of areas disturbed during construction.

B. Related requirements:

1. Section 31 23 16.1300 – Trenching

1.02 MEASUREMENT AND PAYMENT

A. Work is incidental to buried utilities.

B. No separate payment will be made.

PRODUCTS (Not applicable)

EXECUTION

3.01 ROUGH GRADING

A. Grade site to prevent surface water from flowing into excavations and trenches.

B. Maintain existing drainage.

C. Remove any water accumulated in the excavation by pumping or other approved method.

D. If sub-grade is altered, restore to its proper bearing capacity at Contractor’s expense.

File: WLX Page 28 of 83

SECTION 31 22 16.0000

FINE GRADING

GENERAL

1.01 SUMMARY

A. Section includes:

1. Fine site grading of areas disturbed during construction.

PRODUCTS (Not Used)

EXECUTION

3.01 FINE GRADING

B. Grade after all structures and piping are installed.

C. Grade site to true grades as shown on the plans.

D. Ensure that drainage is away from structures.

E. Dress and trim all slopes for a uniform and smooth appearance.

File: WLX Page 29 of 83

SECTION 31 23 16.1300

TRENCHING

GENERAL

1.01 SUMMARY

A. Section includes:

1. Trenching necessary for the construction of the facilities as indicated on the drawings including, but not limited:

a. Water mains and service lines.

B. Related Requirements:

1. Section 31 22 13.0000 – Rough Grading.

2. Section 31 22 16.0000 – Fine Grading.

3. Section 31 23 16.1300 – Trenching.

4. Section 31 23 16.2600 – Rock Removal.

5. Section 31 23 23.1300 – Backfill.

6. Section 31 23 23.2300 – Compaction

1.02 MEASUREMENT AND PAYMENT

A. Trenching is incidental to installation of buried utilities.

B. No separate payment will be made.

1.03 REFERENCES

A. Reference latest manual revision or ASTM standard.

B. ASTM D698 – Test Method for Laboratory Compaction Characteristic of Soil Using Standard Effort.

C. ASTM D1556 – Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method.

D. ASTM D1557 – Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort.

E. ASTM D2922 – Test Method for Density of Soil and Soil Aggregate in Place by Nuclear Methods.

F. ASTM D2487 – Classification of Soils for Engineering.

File: WLX Page 30 of 83

G. ASTM D3017 – Test Method for Water Content of Soil and Rock in Place by Nuclear Methods.

1.04 SUBMITTALS (if required)

A. Barricades and lights

PRODUCTS (Not Used)

EXECUTION

3.01 GENERAL

A. Conform to recommended safety standards, identified, but not limited to, OSHA 1910 and 1926.

B. No workers may enter any trench or excavation without the prior approval of the Competent Person on site.

C. Obtain all permits from appropriate road agency for construction within road right of way.

D. Repair damage resulting from settlement, slides, cave-ins, water pressure, and other causes.

E. Provide adequate signs, barricades, fences, and amber lights and take all necessary precautions to protect the work and the safety of the public in all construction areas.

1. Placement of construction signs and barricades shall conform to the “Manual on Uniform Traffic Control Devices,” 2009 Edition with Revision Numbers 1 and 2 incorporated, dated May 2012 (PDF).

2. Protect barricades and obstructions at night by amber signal lights that burn from sunset to sunrise.

3. Barricades

a. White or with reflective paint to increase their visibility at night.

b. Commercial grade.

4. Minimize obstruction to traffic and inconvenience to the public and residents near the work.

F. Road, Driveway, and Sidewalk Crossing:

1. Comply with all construction and material requirements of roadway authorities having jurisdiction.

2. Maintain one open lane of traffic at all times.

3.02 PREPARATION

A. Layout and Staking:

File: WLX Page 31 of 83

1. Lines staked by the Project Engineer.

2. Notify the Project Engineer at least three business days in advance of the times and places that stakes and benchmarks will be required.

3. Preserve stakes and benchmarks when set. Re-staking for disturbed or displaced stakes at the Contractor’s expense.

B. Close no road or street without permission of the proper authority.

C. Keep fire hydrants accessible.

D. Ensure that gutters, sewer inlets, drainage, and irrigation ditches are kept functional.

3.03 PROTECTION OF EXCAVATION

A. Provide suitable sheathing, shoring, and/or bracing to:

1. Prevent excavation from caving.

2. Provide safe working conditions to protect workers and property.

B. Repair damage resulting from settlement, slides, cave-ins, and water infiltration at Contractor’s expense.

3.04 GENERAL EXCAVATION

A. Excavate by open cut method unless otherwise approved by the Project Engineer or as required by applicable encroachment permits.

B. Remove and stockpile existing topsoil and suitable backfill.

C. Dispose of unsuitable backfill at the location shown in the Drawings or as approved by the Project Engineer.

D. Dispose of excess material, including rock, broken concrete and bituminous materials, debris, at the location shown in the Drawings or as approved by the Project Engineer.

3.05 PIPE LINE EXCAVATION

A. Install facilities as staked unless otherwise approved by Project Engineer.

B. Maintain surface drainage away from trenching or excavation.

1. Conform to Section 31 22 13.0000 - Rough Grading.

3.06 TRENCHING

A. Bottom width: No less than 12 inches or more than 24 inches wider than the outside diameter of the pipe.

B. Remove large stones, ledge rock, and boulders to provide a 6-inch minimum clearance for all pipes.

File: WLX Page 32 of 83

C. Keep walls as nearly vertical as soil conditions permit below the top of pipe.

D. Trench width above pipe may be as wide as required for shoring and sheeting, and proper installation of work.

E. Ensure trench is on proper alignment and center pipe within the trench.

F. Depth: Provide minimum cover identified in the specifications, or to depths shown on drawings.

G. Accurately shape bottom of trench to provide uniform bearing and support for pipe.

H. Excavate bell holes and depressions for joints after bottom of trench is graded.

1. Excavate bell holes and depressions to the minimum length, depth, and width required to make the particular joint.

3.07 REMOVAL OF NUISANCE WATER

A. Remove nuisance water entering the trenches. Nuisance water that can be removed through the use of sump or trash pumps is not considered dewatering.

B. Keep trenches free from water until the facilities are in place, sealed against the entrance of water, and backfill has been placed and compacted above the water level.

3.08 LOCATE EXISTING UTILITIES

A. Locate all existing underground utilities.

1. Utilize state “dig-safe,” “OKIE” or “one-call” hotlines.

2. Contact all other utility owners not covered by the state “dig safe” hotlines.

3.09 UTILITY CONFLICTS

A. Protect existing utilities from damage during excavation and backfilling operations.

B. Provide temporary support for existing water, gas, telephone, power, or other utility services that cross the trench, until backfilling operations have reached the elevation of the utility being crossed.

1. Compact backfill to 95% of Standard Proctor Density under disturbed utilities.

2. Repair or replace any damaged existing utilities at Contractor’s expense.

C. Pipe separation.

1. Horizontal Separation from existing or proposed mains:

a. Maintain a 10-foot horizontal separation (O.D. to O.D.) for the following:

1) Water mains

2) Sewer mains

File: WLX Page 33 of 83

3) Storm sewers

4) Raw water lines

5) Oil and gas lines

6) Buried electric cables

b. Maintain a 15-foot horizontal separation for the following:

1) All parts of septic tanks

2) Absorption fields

3) Any other sewage treatment and disposal systems.

c. Maintain a 50-foot horizontal separation from any gas storage tank.

d. Any deviation must be approved in advance by the Project Engineer and permitting authority.

2. Vertical Separation

a. Vertical crossing with the water main above the sewer line:

1) Maintain a minimum 24-inch vertical separation (O.D. to O.D.) for crossing any existing or proposed sanitary sewers, storm sewers, raw water lines, petroleum product lines, natural gas lines, and other buried utility lines.

2) Lay pipe with joints equidistant from the point of crossing.

b. Vertical crossing with the water main below the sewer line:

1) Maintain a minimum 24-inch vertical separation (O.D. to O.D.) for crossing any existing or proposed sanitary sewers, storm sewers, raw water lines, petroleum product lines, natural gas lines, and other buried utility lines.

2) No sewer line joint closer than 10 feet from the water line.

3) Provide adequate support to prevent damage to the water main.

c. If it is impossible to meet any of the above separation distances and deviations, the following method shall be adhered to:

1) Sewer main shall be constructed to water main pressure pipe standards, and successfully pass a 150-psi pressure test prior to backfilling.

D. Water main and sewer line crossing and parallel installation.

1. Maintain a 30-inch horizontal separation from water main and sewer lines.

2. Maintain a 24-inch vertical separation for crossing water main and any existing or proposed sanitary sewer lines, storm sewers, raw water lines, petroleum lines, natural gas lines, and other buried utility lines.

3. Water line splices or joints will not be permitted within 10 feet of a sewer line crossing.

3.10 MOVING FENCES AND MINOR STRUCTURES

File: WLX Page 34 of 83

A. Remove and reset culverts, drainage pipes, fencing, or other minor structures that fall within the alignment of the new construction. Restore to their original location and grade.

Visit the project site and determine actual conditions with regard to the existence of old car bodies, abandoned houses, fences, driveways, trees, stumps, brush, sidewalks, approaches, and other miscellaneous obstacles to construction.

1. No separate payment will be made for the removal or replacement of these items.

SECTION 31 23 16.2600

ROCK REMOVAL

GENERAL

1.01 SUMMARY

A. This section pertains to the rock excavation necessary for the construction of the facilities as indicated on the plans.

B. Related Requirements

a. Section 31 23 16.1300 – Trenching

b. Section 31 23 23.1300 - Backfill

1.02 MEASUREMENT AND PAYMENT

A. Rock

1. Measurement: volume of trench in which rock was removed measured along the centerline of the pipe.

a. Calculation shall be based on two-foot wide trench and 3-foot depth. Any excess rock that is excavated shall be considered over-excavation and shall not constitute additional payment.

2. Payment: Shall be full compensation for:

a. Earth Work:

1) Ripping operations.

2) Jackhammering.

3) Removal of rock from site.

1.03 DEFINITION

A. Solid Rock

1. Solid rock is defined as large masses of rock which, in the opinion of the Project Engineer, cannot be excavated without drilling, hammering, ripping equipment or other specialized equipment.

PRODUCTS (NOT APPLICABLE)

EXECUTION

3.01 METHODS OF EXCAVATION

File: WLX Page 36 of 83

A. Rock excavation may be accomplished by any or all of the following methods depending on the rock type:

1. Excavation with earthmoving equipment

2. Rip with a dozer and excavate.

3. Jack hammer and excavate.

3.02 RESPONSIBILITIES

A. Remove excavated rock from site unless otherwise directed by the Project Engineer.

3.03 EXCAVATION, RIPPING, AND JACK-HAMMERING

A. Excavate and/or rip to a minimum 6 inches deeper than the pipe invert.

B. Provide 6 inches clearance from rock on each side of pipe.

C. Backfill with imported bedding materials to a depth of 6 inches above the top of pipe.

D. Refill remaining trench with material in accordance with Section 31 23 23.1300 – Backfill.

1. Use existing soil to the greatest extent possible.

File: WLX Page 37 of 83

SECTION 31 23 23.1300

BACKFILL

GENERAL

1.01 SUMMARY

A. Section includes:

1. Backfill necessary for the construction of the facilities as indicated on the plans including, but not limited to water mains and service lines, sewer mains and service lines, concrete manholes, septic tanks, and other structures.

B. Related Requirements:

1. Section 31 22 13.0000 – Rough Grading.

2. Section 31 22 16.0000 – Fine Grading.

3. Section 31 23 16.1300 – Trenching.

4. Section 31 23 16.2600 – Rock Removal.

1.02 MEASUREMENT AND PAYMENT

A. Backfilling is incidental to installation of buried utilities.

1. No separate payment will be made.

B. Imported Bedding

1. Measurement: volume of imported bedding installed in trench measured along the center line of the pipe

2. Payment: Full compensation imported bedding installed:

a. Earthwork including all:

1) Backfilling.

2) Compaction.

3) Removal of excess soil and rock.

4) Site restoration.

b. Provision and installation of materials including:

1) Imported bedding material.

1.03 REFERENCES

File: WLX Page 38 of 83

A. Reference latest manual revision or ASTM standard.

B. Manual on Uniform Traffic Control Devices.

C. ASTM D698 – Test Method for Laboratory Compaction Characteristic of Soil Using Standard Effort.

D. ASTM D1556 – Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method.

E. ASTM D1557 – Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort.

F. ASTM D2922 – Test Method for Density of Soil and Soil Aggregate in Place by Nuclear Methods.

G. ASTM D2487 – Classification of Soils for Engineering.

H. ASTM D3017 – Test Method for Water Content of Soil and Rock in Place by Nuclear Methods.

1.04 SUBMITTALS (if required)

A. Imported bedding material

1.05 DEFINITIONS

A. Soil Materials as summarized in the following table and defined in ASTM D2321 and ASTM D2487.

Description and Comparison of Soil Material Classifications

ASTM D2321 ASTM D2487

Class Type

USCS

Group Symbol Description

IA Manufactured aggregates: ¼ to 1 ½ inch open graded, clean.

* None Closest to “Poorly graded gravel (GP)”

IB Manufactured aggregates: ¼ to 1 ½ inch dense graded, clean.

* None Closest to “Poorly graded gravel with sand (GP)”

II

Coarse sands and gravels with maximum particle size of 1 ½ inch clean.

GW Well-graded gravels and gravel-sand mixtures;

little or no fines.

GP Poorly graded gravels and gravel sand mixtures little or no fines.

SW Well-graded sands and gravelly sands; little or no fines.

SP Poorly graded sands and gravelly sands; little or no fines

Coarse sands and gravels with maximum particle size of 1 ½ inch, borderline clean.

GW-GC

SP-SM

Etc.

Sands and gravels which are borderline between clean and with fines

File: WLX Page 39 of 83

III

Fine sand and clayey gravels.

GM Silty gravels, gravel-sand-silt mixtures.

GC Clayey gravels, gravel-sand-clay mixtures SM Silty sands, sand-silt mixtures SC Clayey sands, sand-clay mixtures

IV

Fine grained soils (inorganic)

ML Inorganic silts and very fine sands, rock flour, silty or clayey fine sands, silts with slight plasticity

CL Inorganic clays of low to medium plasticity, gravely clays, sandy clays, silty clays, lean clays

MH Inorganic silts, micaceous or diatomaceous fine sandy or silty soils, elastic silts

CH Inorganic clays of high plasticity, fat clays.

V

Organic soils

OL Organic silts and organic silty clays of low plasticity

OH Organic clays of medium to high plasticity, organic silts

PT Peat and other high organic soils

* USCS system is limited to naturally occurring soils. Manufactured aggregates not covered.

PRODUCTS

2.01 BEDDING, HAUNCHING AND INITIAL BACKFILL MATERIAL

A. Class I, Class II or Class III, utilized in accordance with restrictions described in Part 3 - Execution.

EXECUTION

3.01 GENERAL

A. Conform to recommended safety standards, identified, but not limited to, OSHA 1910 and 1926.

B. No workers may enter any trench or excavation without the prior approval of the Competent Person on site.

C. Provide adequate signs, barricades, fences, and amber lights and take all necessary precautions to protect the work and the safety of the public in all construction areas.

1. Placement of construction signs and barricades shall conform to the “Manual on Uniform Traffic Control Devices.”

2. Protect barricades and obstructions at night by amber signal lights that burn from sunset to sunrise.

3. Barricades

a. White or with reflective paint to increase their visibility at night.

b. Commercial grade.

4. Minimize obstruction to traffic and inconvenience to the public and residents near the work.

File: WLX Page 40 of 83

D. Road, Driveway, and Sidewalk Crossing:

1. Comply with all construction and material requirements of roadway authorities having jurisdiction.

2. Maintain one open lane of traffic at all times.

3.02 PREPARATION

A. Close no road or street without permission of the proper authority.

B. Keep fire hydrants accessible.

C. Ensure that gutters, sewer inlets, drainage, and irrigation ditches are kept functional.

3.03 BEDDING

A. If existing soil cannot provide uniform, stable bearing support, over-excavate 4 inches below bottom of pipe or structure.

B. Embedment and the backfill up to 4 inches above the pipe crown shall be done in the presence of the Project Engineer or his/her representative.

1. Violation of this provision will require the removal and replacement of the backfill at Contractor’s expense, even if backfill was correctly placed and compacted.

C. Compact in lifts not to exceed 6 inches in loose measure.

D. Utilize Class I, II, or III materials as appropriate for bedding as listed in the following table.

Use of Soils and Aggregate for Bedding

Class IA Class IB Class II Class III General Excellent pipe support. Excellent drainage.

Excellent pipe support. Good drainage. Minimizes migration of adjacent material.

Good pipe support. Fair drainage.

Reasonable pipe support. Poor drainage

Compaction Not required Not required Required 85% of Standard Proctor.

Required 90% of Standard Proctor.

Wet Conditions (below current or future water table). Rock Cuts

Acceptable. Must use same material for Haunching.

Acceptable. Must use same material for Haunching.

Acceptable. Clean groups only suitable for drainage blanket.

Not- Acceptable

Dry Conditions Acceptable Acceptable Acceptable Acceptable

3.04 HAUNCHING AND INITIAL BACKFILL

A. General

1. Provide imported backfill if native soil is unsuitable for haunching and initial backfill.

File: WLX Page 41 of 83

a. Unsuitable native soil is defined as solid or loose rock, dry or frozen lumps greater than ¾ inches in diameter (in any dimension), or containing organic material, or any other material that could damage the pipe.

2. Provide complete and uniform bearing and support for the pipe, including allowance for bell holes, or structure.

3. Work material under and around the pipe to ensure full pipe support.

4. Hand tamp to prevent movement of the pipe during placement of material.

5. Compact in lifts not to exceed 6 inches in loose measure.

6. Avoid contact between the pipe and compaction equipment.

B. Utilize Class I, II, or III materials as appropriate for haunching and initial backfill as listed in the following table. No frozen materials or frozen clods will be permitted.

Use of Soils and Aggregate for Haunching and Initial Backfill Class IA Class IB Class II Class III

General Excellent pipe support. Excellent drainage. Install to a minimum of 4” above the pipe crown.

Excellent pipe support. Good drainage. Minimizes migration of adjacent material. Install to a minimum of 4” above the pipe crown.

Good pipe support. Fair drainage. Install and compact to a minimum of 6” above the pipe crown.

Reasonable pipe support. Poor drainage. Install and compact to a minimum of 6” above the pipe crown.

Compaction Not required Not required Required 85% of Standard Proctor.

6-inch maximum lifts.

Required 90% of Standard Proctor.

6-inch maximum lifts.

Wet Conditions (below current or future water table). Rock Cuts

Acceptable. Must use same material for Bedding.

Extend Haunching to the top crown of the pipe.

Acceptable. Must use same material for Bedding. Extend Haunching to the top crown of the pipe.

Acceptable. Clean groups only suitable for drainage.

Not- Acceptable

Dry Conditions Acceptable Acceptable Acceptable Acceptable

3.05 FINAL BACKFILL

A. Provide imported backfill if native soil is unsuitable for final backfill.

1. Unsuitable native soil is defined as solid or loose rock, dry or frozen lumps greater than 6 inches in diameter (in any dimension) or containing organic material, or any other material that could damage the pipe.

B. Backfill remainder of excavation with native material, free from large clods, large stones, organic material or frost chunks.

C. Compact in 12-inch, loose measure, lifts to a density not less than the density of the surrounding undisturbed soil.

File: WLX Page 42 of 83

1. Provide 30 inches (minimum) of backfill over the pipe before wheel loading the trench.

2. Wheel roll and mound except as otherwise required by the applicable roadway authority or permits.

D. Repair any trenches improperly backfilled or where settlement occurs, then refill and compact.

E. Restore surface to the required grade and compaction. Conform to Section 31 22 16 – Fine Grading.

F. Remove all surplus backfill materials to the location shown in the Drawings or as approved by the Project Engineer.

3.06 REMOVAL OF NUISANCE WATER

A. Remove nuisance water entering the trenches. Nuisance water that can be removed through the use of sump or trash pumps is not considered dewatering.

B. Keep trenches free from water until the facilities are in place, sealed against the entrance of water, and backfill has been placed and compacted above the water level.

3.07 UTILITY CONFLICTS

A. Protect existing utilities from damage backfilling operations.

B. Provide temporary support for existing water, gas, telephone, power, or other utility services that cross the trench, until backfilling operations have reached the elevation of the utility being crossed.

1. Compact backfill to 95% of Standard Proctor Density under disturbed utilities.

2. Repair or replace any damaged existing utilities at Contractor’s expense.

File: WLX Page 43 of 83

SECTION 31 23 23.2300

COMPACTION

GENERAL

1.01 SUMMARY

A. Section includes:

1. Compaction of excavations, trenching, and backfill necessary for the construction of the facilities as indicated on the drawings including, but not limited to, water mains and service lines, sewer mains and service lines, concrete manholes, septic tanks, and other structures.

B. Related Requirements

1. Section 31 22 16.0000 – Fine Grading.

2. Section 31 23 16.1300 – Trenching.

3. Section 31 23 16.2600 – Rock Removal.

4. Section 31 23 23.1300 – Backfill.

1.02 MEASUREMENT AND PAYMENT

A. Compaction is incidental to installation of buried utilities.

B. No separate payment will be made.

1.03 REFERENCES

A. Reference latest manual revision or ASTM standard.

B. ASTM D698 – Test Method for Laboratory Compaction Characteristic of Soil Using Standard Effort.

C. ASTM D1557 – Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort.

D. ASTM D2922 – Test Method for Density of Soil and Soil Aggregate in Place by Nuclear Methods.

E. ASTM D2487 – Classification of Soils for Engineering.

F. ASTM D3017 – Test Method for Water Content of Soil and Rock in Place by Nuclear Methods.

1.04 SUBMITTALS (NOT REQUIRED)

1.05 DEFINITIONS

File: WLX Page 44 of 83

A. Soil Materials as summarized in the following table and defined in ASTM D2321 and ASTM D2487.

PRODUCTS (NOT USED)

EXECUTION

3.01 GENERAL

A. Conform to recommended safety standards, identified, but not limited to, OSHA 1910 and 1926.

B. Minimize obstruction to traffic and inconvenience to the public and residents near the work.

C. Road, Driveway, and Sidewalk Crossing:

1. Comply with all compaction requirements of roadway authorities having jurisdiction.

2. Maintain one open lane of traffic at all times.

3.02 TRENCH COMPACTION

A. HAUNCHING AND INITIAL BACKFILL

1. General

a. Work material under and around the pipe to ensure full pipe support.

b. Hand tamp to prevent movement of the pipe during placement of material.

c. Compact in lifts not to exceed 6 inches in loose measure.

2. Avoid contact between the pipe and compaction equipment.

B. FINAL BACKFILL

1. Thickness of backfill layers exceeding 12 inches may be approved by the Project Engineer based on the type of soil encountered and the field performance of the equipment used.

2. If greater than 12-inch thick compact layers are approved:

a. Hand excavate to the test level at locations designated by the Project Engineer.

b. Refill the test excavation with compacted backfill to the specified density.

3. Reopen any trenches improperly backfilled or where settlement occurs to the depth required for proper compacting, then refilled and compacted at the expense of the Contractor.

a. Restore the surface to the required grade and compaction, mounded over and smoothed off or resurfaced as required.

File: WLX Page 45 of 83

b. Compact all backfill to a density not less than the density of the surrounding undisturbed soil.

c. Surplus materials shall be disposed of as directed by the Project Engineer.

C. Compact trench backfill within the limits of a roadway to a density not less than 95% of the maximum density determined by ASTM D698 from 12 inches above pipe crown to the surface.

1. Roadways for the purposes of backfilling and compaction include driveways and unimproved roads as well as paved streets and highways.

2. The location of the roadway limits for the purposes of this section shall be established by the Project Engineer in the field and may include highway shoulders and drainage ditches.

D. In lieu of this special compaction the Contractor may use, at his expense, well-graded gravel as backfill.

1. The gravel shall be clean and may vary in size from ¼-inch to 1.5-inch with not more than 10% of the material less than ¾-inch in size.

2. The gravel shall be compacted as approved by the Project Engineer.

E. Backfill and compaction around manholes, hydrants, valve boxes and other appurtenances shall be in lifts not to exceed 12 inches.

1. Compact to a density not less than 90% of the maximum density determined by ASTM D 1557.

File: WLX Page 46 of 83

SECTION 33 11 13.0001

PUBLIC WATER DISTRIBTUION PIPING DISINFECTION

GENERAL

1.01 SUMMARY

A. Section includes disinfection of public water distribution piping.

B. Related requirements:

1. Section 01 33 00.0000 – Submittal Procedures.

2. Section 01 77 00.0000 - Closeout Procedures.

3. Section 01 78 00.0000 – Closeout Submittals.

4. Section 33 11 31.2510 – Public Water Distribution Piping Polyvinyl Chloride Pipe.

1.02 MEASUREMENT AND PAYMENT

A. Disinfection of public water distribution piping.

1. There is no separate payment for disinfection of public water distribution piping. The cost of disinfection is included in the cost of the pipe installation.

1.03 REFERENCES

A. Reference Standards:

1. Use current standard.

2. ANSI/AWWA B300 – Hypochlorites.

3. AWWA Manual M12 – Simplified Procedures for Water Examination

4. ANSI/AWWA C651-05 - Disinfecting Water Mains.

5. Oklahoma Department of Environmental Quality Title 252, Chapter 626, Subchapter 19- 2(f) Disinfection and Testing.

1.04 SUBMITTALS

A. Test and Evaluation Reports:

1. Conform to Section 01 33 00.0000 – Submittal Procedures.

2. Provide copies of the laboratory test results.

1.05 QUALITY ASSURANCE

File: WLX Page 47 of 83

A. Qualifications

1. Bacteriological testing: state certified laboratory.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Storage and Handling Requirements.

1. Sodium Hypochlorite: control storage conditions and time to minimize deterioration.

2. Calcium Hypochlorite: Store in a cool, dry, and dark environment to minimize deterioration.

B. Packaging Waste Management.

1. Deposit packaging in an approved landfill.

PRODUCTS

2.01 MANUFACTURERS

A. Manufacturers and wholesalers.

1. Sodium Hypochlorite and Calcium Hypochlorite.

a. Harcros Chemicals

1) Address: 3909 S. Meridian Avenue, Oklahoma City, OK 73119.

2) Telephone: 405-685-7741.

3) Website: www.harcroschem.com/

b. Univar USA Inc.

1) Address: 3320 S Council Rd, Oklahoma City, OK 73179.

2) Telephone: 405-745-2376.

3) Website: www.univarusa.com/pagesi/water.

c. John Bull Chemical & Supply Co.

1) Address: 8141 E 46th St., Tulsa, OK 74145

2) Telephone: 918-663-7727

3) Website: www.johnbullchemical.com.

B. Materials

1. Conform to ANSI/AWWA B300.

File: WLX Page 48 of 83

EXECUTION

3.01 PREPARATION

A. Pre-flush the source of potable water used to fill the water main.

3.02 INSTALLATION

A. Approved methods of chlorination.

1. Continuous feed method:

a. Use this method on mains that are kept clean and dry during construction.

b. Place hypochlorite granules in the water line during construction.

1) Place at:

a) The upstream end of the main.

b) The upstream end of each branch main

c) At 500 foot intervals.

2) Quantity of granules required:

Pipe Diameter (d) Calcium Hypochlorite Granules Inches oz Grams

4 1.7 48 6 3.8 108 8 6.7 190 10 10.5 298 12 15.1 428

14 and larger D2 x 15.1 D2 x 428 Where D is the inside pipe diameter in feet D = d/12

3) Filling the main:

a) Fill main with potable water.

b) Fill at a velocity less than 1 foot per second.

c) Eliminate air pockets.

4) Contact time:

a) 24 hours when the water temperature is 41o F or higher.

b) 48 hours when the water temperature is less than 41o F.

5) Chlorine Residual:

File: WLX Page 49 of 83

a) Maintain free chlorine residual of not less than 10 mg/l after 24 hours of contact time.

b) Sample at: each fire or flush hydrant and at the end of the main and end of branch lines.

a) Test for residual free chlorine at each sampling point.

b) Record test results and submit to the Project Engineer.

6) Final Flushing:

a) Flush the system with potable water at a velocity of 2.5 feet per second or greater.

2. Tablet method:

b. Used only on mains kept clean and dry during construction.

c. Place 5-gram calcium hypochlorite tablets in the main during construction.

1) Quantity of tables required:

Length of Pipe Section (feet) Pipe Diameter 13 or less 18 20 30 40

Inches Number of 5-gram Calcium Hypochlorite Tablets 4 1 1 1 1 1 6 1 1 1 2 2 8 1 2 2 3 4

10 2 3 3 4 5 12 3 4 4 6 7 16 4 6 7 10 13

Based on 3.25-gram available chlorine per tablet

2) Place tablets in each:

a) Section of pipe.

b) At each hydrant.

c) At each hydrant branch.

3) Attach tablets to pipe with food grade adhesive.

a) Place adhesive on flat side of tablet.

b) Attach to the inside top of the pipe.

c) If attached to the pipe before installation, mark the location of the tablet on the outside of the pipe to indicate the pipe has been installed with the tablet at the top.

File: WLX Page 50 of 83

4) Filling the main:

a) Fill with potable water.

b) Fill at a velocity less than 1 foot per second.

c) Eliminate air pockets.

5) Contact time:

a) 24 hours when the water temperature is 41o F or higher.

b) 48 hours when the water temperature is less than 41o F.

6) Chlorine Residual:

a) Maintain free chlorine residual of not less than 10 mg/l after 24 hours of contact time.

b) Sample at each fire or flush hydrant and at the end of the main and end of branch lines.

c) Test for residual free chlorine at each sampling point.

d) Record test results and submit to the Project Engineer.

7) Completion:

a) Flush the system with potable water at a velocity of 2.5 feet per second or greater.

3. Slug method:

d. Required for mains that were contaminated with groundwater during construction.

1) Place at:

a) The upstream end of the main.

b) The upstream end of each branch main.

c) At 500 foot intervals.

2) Quantity…