Attachment 003 Specifications.pdf

FOREST WIDE EYE WASH

STATION INSTALLATIONS

SPECIAL PROJECT SPECIFICATIONS

JESSIEVILLE, FOURCHE, POTEAU, MENA, ODEN, AND TIAK

RANGER DISTRICTS

USDA FOREST SERVICE

OUACHITA NATIONAL FOREST

SPECIAL CONTRACT REQUIREMENTS

Project: FOREST WIDE EYE WASH STATION INSTALLATIONS

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads. The following

Special Contract Requirements amend and supplement the Standard

Specifications for Construction of Roads and Bridges on Federal

Highway Projects (FP-14) U. S. Customary Units, U. S. Department of

Transportation, Federal Highway Administration.

Table of Contents

Contents

Project: FOREST WIDE EYE WASH STATION INSTALLATIONS

Table of Contents

Preface

101 - Terms¸ Format¸ and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

Delete these definitions and replace the following:

Add the following definitions:

102 - Bid¸ Award¸ and Execution of Contract

Delete Section 102

103 - Scope of Work

Delete Subsections 103.02, 103.03, 103.04, 103.05

104 - Control of Work

Delete Subsections 104.01, 104.02, 104.04

104.06 Use of Roads by Contractor

106 - Acceptance of Work

106.01 Conformity with Contract Requirements

106.02 Visual Inspection

106.07 Partial and Final Acceptance

107 - Legal Relations and Responsibility to the Public

Delete Subsection 107.05

108 - Prosecution and Progress

Delete Section 108

109 - Measurement and Payment

Delete Subsections 109.06, 109.07, 109.08, 109.09

109.02 Measurement Terms and Definitions

153 - Contractor Quality Control

153.03 Quality Control Plan

153.07 Records and control charts

155 - Schedules for Construction Contracts

Delete Section 155

156 - Public Traffic

Section 156. – PUBLIC TRAFIC

157 - Soil Erosion and Sediment Control

157.04 General

209 - Structure Excavation and Backfill

209.09 Backfill

209.10 Compacting

611 - Water Systems

611.02 Material

611.04 Laying Water Lines

611.05 Testing and Disinfecting Lines

611.10 Eye Wash Stations

611.11 Underground Warning Tape

703 - Aggregate

703.05 Subbase, Base, and Surface Course Aggregate

703.18 Porous Fill Material

725 – Miscellaneous Material

725.30 Water Line Piping

725.31 Eye Wash Stations

725.32 Underground Utility Warning Tape

725.33 Solvent Cement for pipe joints

Preface

Delete all but the first paragraph.

101 - Terms¸ Format¸ and Definitions

101.01_National_10_5_2017

Add the following paragraph to Subsection 101.01:

101.01 Meaning of Terms.

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03_National_10_5_2017

Add the following to Subsection 101.03:

101.03 Abbreviations.

(a) Acronyms.

AGAR — Agriculture Acquisition Regulations

AFPA — American Forest and Paper Association

FSAR — Forest Service Acquisition Regulations

MSHA — Mine Safety and Health Administration

NESC — National Electrical Safety Code

WCLIB — West Coast Lumber Inspection Bureau

(f) Miscellaneous unit abbreviations.

MP — milepost location ppm — parts per million volume

STA station location

101.04_National_10_5_2017

Make the following changes to Subsection 101.04:

101.04 Definitions.

Delete these definitions and replace the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads.

Contractor — The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “Purchaser”.

Culvert — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure.

Drawings — (Public Works Contracts) Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor according to FAR Clause 52.236-21 Specifications and Drawings for Construction. Also refers to submissions and submittals.

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work.

Right-of-Way — A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Solicitation—(Public Works Contracts) The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders.

Add the following definitions:

Adjustment in Contract Price — “Equitable adjustment,” as used in the Federal Acquisition Regulations, or

“construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change — “Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Forest Service — The United States of America, acting through the Forest Service, U.S. Department of

Agriculture.

Neat Line — A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road — Temporary construction access built along the route of the project.

Purchaser — The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse — A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order — An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Shop Drawings — (Timber and Stewardship Contracts) Referred to as “Drawings” in FP-14, include drawings, diagrams, layouts, schematics, descriptive literature, illustrations, lists or tables, performance and test data, and similar materials furnished by Purchaser to explain in detail specific portions of the work required by the contract.

Utilization Standards — The minimum size and percent soundness of trees described in the specifications to determine merchantable timber.

102 - Bid¸ Award¸ and Execution of Contract

102.00_National_10_5_2017

Delete Section 102 in its entirety.

Delete Section 102.

103 - Scope of Work

Delete all of Section 103 except Subsection 103.01 Intent of Contract.

Delete Subsections 103.02, 103.03, 103.04, 103.05.

104 - Control of Work

Delete Subsections 104.01, 104.02, and 104.04.

Delete Subsections 104.01, 104.02, 104.04.

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Add the following to Subsection 104.06:

104.06 Use of Roads by Contractor.

104.06_National_10_5_2017

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

106 - Acceptance of Work

Delete Subsection 106.01 and replace with the following:

106.01 Conformity with Contract Requirements.

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

106.01 _National_10_5_2017

References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.

Perform all work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown on the plans or specified in the contract.

Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more strict.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

The Government may inspect, sample, or test all work at any time before final acceptance of the project. When the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the

Government, the Contractor’s results may be used by the Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.

Acceptable work conforming to the contract will be paid for at the contract unit bid price. Four methods of determining conformity and accepting work are described in Subsections 106.02 to 106.05 inclusive. The primary method of acceptance is specified in each Section of work. However, work may be rejected at any time it is found by any of the methods not to comply with the contract.

Remove, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be at no cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the CO. If the dispute is unresolved after reasonable steps are taken to resolve the dispute, further evaluation may be obtained by written request. Include a narrative describing the dispute and a proposed resolution protocol that addresses the following:

1. Sampling method;

2. Number of samples;

3. Sample transport;

4. Test procedures;

5. Testing laboratories;

6. Reporting;

7. Estimated time and costs; and

8. Validation process.

If the evaluation requires additional sampling or testing be performed, mutually agree with the Government on witnessing procedures and on sampling and testing by a third party laboratory. Use a third party laboratory accredited by the AASHTO accreditation program. Provide proof of the laboratory’s accreditation for the test procedures to be used. Do not use the same laboratory that produced the disputed Government test results or that produced the test results used as a basis for the dispute.

The CO will review the proposed resolution protocol and may modify it before final approval and execution.

The Government will use the approved resolution protocol test results to determine the validity of the disputed testing. If the Government test results are validated, the Contractor will be responsible for all costs associated with developing and performing the resolution protocol. If the Government test results are not validated, the

Government will be responsible for all costs associated with developing and performing the resolution protocol.

If the validity of the Government test results cannot be determined, the Contractor and Government will equally share all costs associated with developing and carrying out the resolution protocol.

(b) Alternatives to removing and replacing non-conforming work. As an alternative to removal and replacement, the Contractor may submit a written request to:

1. Have the work accepted at a reduced price; or

2. Be given permission to perform corrective measures to bring the work into conformity.

The request must contain supporting rationale and documentation. Include references or data justifying the proposal based on an evaluation of test results, effect on service life, value of material or work, quality, aesthetics, and other tangible engineering basis. The CO will determine disposition of the nonconforming work.

106.02 _National_10_5_2017

Delete Subsection 106.02 and replace with the following:

106.02 Visual Inspection.

Acceptance is based on visual inspection of the work for compliance with the specific contract requirements.

Use prevailing industry standards in the absence of specific contract requirements or tolerances.

106.07_National_10_4_2017

Delete Subsection 106.07.

106.07 Partial and Final Acceptance.

107 - Legal Relations and Responsibility to the Public 107.05_National_10_5_2017

Delete Subsection 107.05.

Delete Subsection 107.05.

108 - Prosecution and Progress

Delete Section 108 in its entirety.

Delete Section 108.

109 - Measurement and Payment

Delete Subsections 109.06, 109.07, 109.08, and 109.09:

Delete Subsections 109.06, 109.07, 109.08, 109.09.

108.00_National_10_5_2017

109.00_National_10_5_2017

Add the following sentence to Subsection 109.02(b):

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

109.02_National_10_5_2017

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

153 - Contractor Quality Control

Add the following paragraph to the end of Subsection 153.03(b):

153.03 Quality Control Plan.

(b) Quality Control Procedures.

153.03_National_10_4_2017

Submit written proposals for approval of alternate AASHTO or State approved test methods. Alternate methods may be allowed based on documented equivalence to the specified method.

153.07_National_10_4_2017

Delete Subsection 153.07 and replace with the following:

153.07 Records and control charts.

Maintain complete testing and inspection records by pay item number and make them accessible to the CO.

155 - Schedules for Construction Contracts

Delete Section 155 in its entirety.

Delete Section 155.

156 - Public Traffic

Delete Section 156 in its entirety and replace with the following:

Section 156. – PUBLIC TRAFIC

155.00_National_10_5_2017

156.00_National_10_4_2017

Description

156.01 This work consists of controlling and protecting public traffic adjacent to and within the project.

Material

156.02 Conform to the MUTCD and the following Sections and Subsections:

Permanent Traffic Control 633

Traffic Signing and Marking Material 718

Concrete Barriers and Precast Guardwalls 618

Temporary plastic fence 710.11

Construction Requirements

156.03 General. Accommodate traffic according to MUTCD, approved traffic control plan and this section.

Perform work in a manner that ensures safety and convenience of the public. Unless otherwise provided for in

Table 156-1, keep existing roads open to all traffic during road improvement work, and maintain them in a condition that will adequately accommodate traffic. Accommodate public traffic on roads adjacent to and within the project until the project is accepted according to Subsection 106.07(b).

Submit traffic control plan at least 30 days prior to intended use. Perform no work that interferes or conflicts with traffic or existing access to the roadway surface until a traffic control plan has been approved.

Post construction signs and traffic control devices in conformance with MUTCD and Forest Service EM 7100-15.

All required signs will be in place and approved prior to beginning work on project.

If the Contractor agrees in writing to allow public traffic to use a new road being constructed prior to completion, it will be considered an existing road for traffic control purposes.

156.04 Temporary Traffic Control. Install and maintain temporary traffic control devices adjacent to and within the project as required by the approved traffic control plan and the MUTCD. Install and maintain traffic control devices as follows:

(a) Furnish and install traffic control devices before the start of construction operations.

(b) All detours outside of clearing limits will be approved in writing by the Contracting Officer as part of the traffic control plan.

(c) Install only those traffic control devices needed for each stage or phase.

(d) Relocate temporary traffic control devices as necessary.

(e) Remove devices that no longer apply to the existing conditions.

(f) Immediately replace any device that is lost, stolen, destroyed, or inoperative.

(g) Keep temporary traffic control devices clean.

(h) Remove all temporary traffic control devices upon contract completion or when approved.

(i) When required, use flaggers certified by the American Traffic Safety Services Association, the National

Safety Council, the International Municipal Signal Association, a state agency, or other acceptable organization. Perform the work described under MUTCD Part 6. Use type III, VII, VIII, or IX retroreflective sheeting on flagger paddles. Do not use flags. Flaggers must wear high visibility safety apparel as required by MUTCD 6E.02.

156.05 Temporary Closures. Road segments may be closed as shown in Table 156-1. The maximum consecutive days of closure shall be as shown. Maintain traffic control devices during closure period(s).

Appropriate barricades and signs will be erected and maintained as shown in the traffic control plan or as otherwise designated.

Prior to closing roads during construction, give written notice to the Contracting Officer at least 10 days in advance.

Table 156-1

Temporary Road Closures

Road Number

Maximum Consecutive Days of Closure

XXX XXX

156.06 Acceptance. Public traffic work will be evaluated under Subsection 106.02.

Measurement and Payment

156.07 Do not measure Public Traffic for payment. Payment for contract work is provided indirectly. See

Subsection 109.05.

157 - Soil Erosion and Sediment Control

Delete Subsection 157.04 and replace with the following:

157.04 General.

157.04_National_10_4_2017

Thirty (30) days prior to the start of construction, submit a written plan according to subsection 104.03 with all necessary permits that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control without approval.

When erosion control measures are not functioning as intended, take corrective action to eliminate or minimize pollutants in storm water discharges from the project.

209 - Structure Excavation and Backfill

Make the following Changes to Subsection 209.09:

209.09 Backfill.

Add the following to Subsection 209.09(a):

209.09_National_10_5_2017

(a) General.

Backfill without damaging or displacing the culvert or structural plate structure. Replace any pipe that is distorted by more than 5 percent of nominal dimensions, or that is ruptured or broken.

Add the following to Subsection 209.09(b)

(b) Pipe culverts.

Do not place or backfill pipe that meets any of the following conditions until the excavation and foundation have been approved in writing by the CO:

• Embankment height greater than 6 feet at subgrade centerline.

• Installation in a protected stream course.

• Round pipe with a diameter of 48 inches or greater.

• Pipe arches with a span of 50 inches or greater.

• Any box culvert or structure other than pipe culverts.

209.10_National_10_5_2017

Delete Subsection 209.10 and replace with the following:

209.10 Compacting.

Compact the embankment using one of the following methods as specified.

(a) Compaction Method 1. Use AASHTO T 27 to determine the quantity of material retained on a No. 4 (4.75-millimeter) sieve. Compact as follows:

(1) More than 80 percent retained on a No. 4 (4.75-millimeter) sieve. Adjust the moisture content to a level suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Use compression-type rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet (1 meter) per second. Compact each layer of material full width with one of the following and until there is no visible evidence of further consolidation:

(a) Four roller passes of a vibratory roller having a minimum dynamic force of 40,000 pounds (180 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute;

(b) Eight roller passes of a 20-ton (20-metric ton) compression-type roller; or

(c) Eight roller passes of a vibratory roller having a minimum dynamic force of 30,000 pounds (130 kilonewtons) impact per vibration and a minimum frequency of 1000 vibrations per minute.

Increase the compactive effort for layers deeper than 12 inches (300 millimeters) as follows:

• For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in Subsection 209.10(a)(1)(a), by four passes; or

• For each additional 6 inches (150 millimeters) or fraction thereof, increase the number of roller passes in Subsection 209.10(a)(1)(b) and (c), by eight passes.

(2) 50 to 80 percent retained on a No. 4 (4.75-millimeter) sieve. Classify the material according to AASHTO M 145. Adjust the moisture content of material classified A-1 through A-5 to a moisture content suitable for compaction. Adjust the moisture content of material classified A-6 and A-7 to within 2 percent of the optimum moisture content. Use

AASHTO T 99 to determine the optimum moisture content of the portion of the material passing a No. 4 (4.75-millimeter) sieve. Multiply this number by the percentage of material passing a No. 4 (4.75-millimeter) sieve, and add 2 percent to determine the optimum moisture content of the material.

Use nonvibratory rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet(1 meter) per second. Compact each layer of material full width according to Subsection 209.10(a)(1).

(3) Less than 50 percent retained on a No. 4 (4.75-millimeter) sieve. Classify the material according to AASHTO M 145. For material classified A-1 or A-2-4, determine the maximum density according to AASHTO T 99, Method C..

Adjust the moisture content of material classified A-1 through A-5 to a moisture content suitable for compaction. Adjust the moisture content of material classified A-6 and A-7 to within 2 percent of the optimum moisture content.

Use compression-type or vibratory rollers. Compact each layer of material full width to at least 95 percent of the maximum density. Determine the in-place density and moisture content according to AASHTO T 310 or other approved test procedures. When required, use

AASHTO T 224 to correct for coarse particles.

(b) Compaction Method 2. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate roller compaction equipment over the full width of each layer until there is no visible evidence of further consolidation or, if when a sheepsfoot roller is used, the roller “walks out” of the layer. Make at least three complete passes. Use compression-type rollers at speeds less than 6 feet (1.8 meters) per second and vibratory rollers at speeds less than 3 feet (1 meter) per second. Ensure rollers meet the following requirements:

(1) Steel wheeled rollers, other than vibratory, capable of exerting a force of not less than 250 pounds per inch (4.5 kilogram/millimeter) of width of the compression roll or rolls.

(2) Vibratory steel wheeled rollers equipped with amplitude and frequency controls with a minimum dynamic force of 30,000 pounds (130 kilonewtons) impact per vibration, specifically designed to compact the material on which it is used.

(3) Pneumatic-tired rollers with smooth tread tires of equal size that will provide a uniform compacting pressure for the full width of the roller and capable of exerting a ground pressure of at least 80 psi (550 Kilopascals).

(4) Sheepsfoot, tamping, or grid rollers capable of exerting a force of 250 pounds per inch (4.5 kilogram/millimeter) of width of roller drum.

(c) Compaction Method 3. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer until there is no visible evidence of further consolidation. Make at least three complete passes.

(d) Compaction Method 4. Adjust the moisture content of the material to a moisture content suitable for compaction. Fill the interstices around rock with earth or other fine material as practical. Operate hauling and spreading equipment uniformly over the full width of each layer.

(e) Compaction Method 5. Adjust the moisture content of the material to a moisture content suitable for compaction. Compact the complete surface with a bucket of an excavator larger than 39,000 pounds (18 metric ton) Gross Vehicle Weight using a minimum of three blows.

Overlap compaction by ½ width of bucket.

(f) Compaction Method 6. Adjust the moisture content of the material to a moisture content suitable for compaction. Compact using an approved mechanical tamper for a minimum of three complete passes.

When compacting with rollers or hauling and spreading equipment is not practical, use approved mechanical tampers for a minimum of three complete passes.

301.05_National_10_4_2017

611 - Water Systems

Add the following to Subsection 611.02.

611.02 Material.

Water Line Piping 725.30

Eye Wash Stations 725.31

Solvent Cement for pipe joints 725.34

Delete Subsection 611.04.

611.04 Laying Water Lines.

A. Piping shall have no dips in the piping.

B. Solvent welding of PVC Piping

1. Pipe shall have the end square, chamfer, and clean.

2. Check dry fit of pipe and fitting.

3. Use a suitable applicator to apply primer to the inside of the socket fitting and the outside of the pipe the full length of the joint.

4. While the primer is still wet apply an even coat of cement to the inside of the fitting.

5. Quickly assemble the joint. Cement must be fluid or restart the procedure.

6. Push the pipe completely into the fitting and give a ¼ turn.

7. Hold the joint together for minimum of 30 seconds or till glue has initial set and is not pushing the joint apart. Wipe off any excess glue.

8. Follow any other requirements that the product manufacturer requires for their product.

C. The piping shall be installed in strict accordance with the piping manufacturer's installation recommendations. Special attention shall be given to the manufacturer's recommended ambient installation temperatures, recommended embedment materials, pipe jointing system requirements including preparation and curing times and techniques, support requirements during installation, and recommended backfilling sequence and technique.

D. Longitudinal bending of the pipe shall comply with the manufacturer's recommendations. The literature provided by the Contractor shall include the manufacturer's recommendations for longitudinal bending.

E. Gate Valves in Valve Boxes

Provide brass valves with handwheels that open by counterclockwise rotation of the valve stem. Bolt and construct stuffing boxes to permit easy removal of parts for repair. Use valves from one manufacturer.

Install all gate valves in valve boxes. Valve boxes shall be installed plumb and in accordance with the manufacturer's instructions.

Valves installation shall conform to AWWA C509 in accordance with AWWA C600 for valve-and-fitting installation and with the recommendations of the Appendix ("Installation, Operation, and Maintenance of Gate Valves") to AWWA C509. Make and assemble joints to gate valves and check valves as specified for making and assembling the same type joints between pipe and fittings.

Delete Subsection 611.05.

611.05 Testing and Disinfecting Lines.

A. PRESSURE TESTING: All piping that is used in the final system shall be subjected to a pressure test.

The test shall use water (not air) as the testing medium. All items that comprise the system shall be tested unless otherwise authorized by the COR. The method for testing the system shall expose the system to a pressure of at least 125 psi for a period of not less than two hours. The method for accomplishing this shall be devised by the Contractor and approved by the COR. No amount of leakage is acceptable. Leaks in the new piping shall be repaired by the Contractor at no additional cost to the Government.

B. DISINFECTION: All water piping affected by this construction shall be disinfected in accordance with the specified code. This includes the existing water lines affected by this construction. The Contractor shall insure that all chlorine in excess of a 2 ppm residual shall be removed from the water supply prior to returning the system to service. Do not apply undiluted disinfectant to the lines before filling the pipes with water. Disinfection shall be accomplished as follows:

PROCEDURE: The Contractor shall devise his own method for ensuring that all piping is disinfected at the time it is placed into service. The Contractor shall describe the method of disinfection in writing for approval by the COR prior to beginning the procedure. All work shall comply with the specified code.

C. BACTERIOLOGICAL TESTING: After final flushing, and before the water system is placed in service, the contractor shall make two bacteriological tests 24 hours apart showing the absence of coliform organisms prior to acceptance of the water system. The samples shall be collected from the end of the main line. The contractor shall submit samples to a testing lab certified by the State Health Department for performing the required testing and furnish the engineer a copy of all test results.

D. REPETITION OF PROCEDURES: If the initial disinfection fails to produce samples acceptable to the

State for potable water, disinfection shall be repeated until satisfactory samples have been obtained.

When the samples are satisfactory, the system may be placed in service

E. Test Plan: Before testing begins and in adequate time to obtain approval through the submittal process, prepare and submit a test plan for approval by COR include testing procedures, methods, equipment, and tentative schedule. Obtain advance written approval for deviations from the

Specifications.

Add the following Subsection 611.10.

611.10 Eye Wash Stations.

Install Government Furnished “Haws” eye wash stations in accordance with the manufacturer’s recommendations in the locations indicated on the plans. Contact the COR for a copy of the “Haws Eye

Wash Installation Manual.” The eye wash stations are stored at each respective facility. The contractor shall contact the COR and let the COR know when the contractor will move the eye wash stations from storage to the site. The contractor shall contact the COR to gain access to the storage building where the eye wash stations are stored.

611.11 Underground Warning Tape.

The detection tape shall be placed above all buried utilities installed in this contract.

The detection tape shall have a minimum of 6 inches of cover over the tape and be placed 12 inches above the buried utility when depth allows.

The detection tape shall be installed per the manufacturer’s instructions.

Solvent Cement for pipe joints 725.34

Septic Tanks 725.35

703 - Aggregate

Delete Subsection 703.05 including Tables 703-2 and 703-3:

703.05 Subbase, Base, and Surface Course Aggregate

703.05_Forest_10_6_2017

Aggregate shall meet the requirements of Arkansas Department of Transportation Standard

Specifications for Highway Construction, 2014 Edition, SECTION 303 AGGREGATE BASE COURSE, and

TABLE 303-1 AGGREGATE BASE COURSE GRADING AND CRUSHING REQUIREMENTS, including the requirements of subsection 303.01 Materials. When used as a surface course, aggregate shall have a PI of 3-7.

703.18 Porous Fill Material

The aggregate for the eye wash frost free drain shall be one-half to two and one-half inches (1/2" to 2-

1/2") in diameter with no more than ten percent (10%) by weight passing through a one-half inch (1/2") screen. The aggregate shall have a Mohs hardness of at least 3.0.

725 – Miscellaneous Material

Add the following Subsection 725.30.

725.30 Water Line Piping.

All piping and fittings shall be schedule 40 PVC. PVC water line piping, valves, and fittings must meet the requirements in ASTM D 1785, ASTM D 2466, ASTM D 2564, ASTM D2665, ASTM D2949, ASTM 3033, ASTM 3034, ASTM F 656, and ASTM F 1668. Pipe and fittings shall be manufactured from virgin rigid PVC compounds with a cell class of 12454 as identified in ASTM 1784.

Valve Boxes

1. Valve box top section shall be made of ductile iron.

2. The top section shall have an adjustable elevation.

3. The bottom section shall be constructed of corrosion-proof plastic or polymer.

Add the following Subsection 725.31.

725.31 Eye Wash Stations.

Eye wash stations shall be Government Furnished “Haws” eyewash stations. Coordinate the pick-up of the water towers with the COR.

Add the following Subsection 725.32.

725.32 Underground Utility Warning Tape.

The detection tape shall have an overall thickness of 5 mil with a foil core thickness of 0.35 mil per ASTM

D 2103. Tape shall have a tensile strength of 15,000 psi and Elongation of 80% MD and 150% TD per

ASTM D 822. The color shall conform to APWA standard colors and have “CAUTION BURIED (type) LINE

BELOW”. Type shall be the utility service type. The detection tape shall be a minimum of 3 inches in width

Add the following Subsection 725.34.

725.33 Solvent Cement for pipe joints.

PVC pipe joint cement must meet the requirements of ASTM Standard D-2564.

PVC pipe joint cement primer shall have a purple tint on the pipe, be used at all joints and must meet the requirements of ASTM Standard F-656.