Attachment 2 - Forest Service Supplement Specifications.pdf

FOREST SERVICE

SUPPLEMENTAL SPECIFICATIONS

FOR

Indian Meadows Trailhead –

Water System Improvements

USDA Forest Service, Region 1

Helena-Lewis and Clark National Forest

Lincoln Ranger District

Lewis and Clark County, Montana

Prepared by:

GREAT WEST ENGINEERING, INC.

2501 Belt View Drive

Helena, MT 59601

Table of Contents Preface

101 – Terms, Format, and Definitions

102 – Bid, Award, and Execution of Contract

103 - Scope of Work

104 - Control of Work

105 - Control of Material

106 - Acceptance of Work

107 - Legal Relations and Responsibility to the Public

108 - Prosecution and Progress

109 - Measurement and Payment

152 - Construction Survey and Staking

153 - Contractor Quality Control

155 - Schedules for Construction Contracts

156 - Public Traffic

611 – Water Systems

Preface Preface_wo_10_23_2019

Delete all but the first paragraph and add the following:

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

System Roads.

101 – Terms, Format, and Definitions 101.01_National_11_9_2016

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_11_9_2016

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_9_5_2018

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 Public Works contract specifications or

Timber Sale and IRTC contract provisions to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 – Bid, Award, and Execution of Contract 102.00_National_11_9_2016

Delete Section 102 in its entirety.

Delete Section 102.

103 - Scope of Work 103.00_National_11_9_2016

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 104.00_National_11_9_2016

Delete Subsections 104.01, 104.02, and 104.04.

Delete Subsections 104.01, 104.02, 104.04.

104.06_National_11_9_2016

Add the following to Subsection 104.06:

104.06 Use of Roads by Contractor.

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.

105 - Control of Material

105.02_National_2_25_2019

Add the following to Subsection 105.02c:

105.02(c) Contractor-located sources.

All material (e.g., soil, gravel, sand, borrow, aggregate, etc.) transported onto National Forest System land or incorporated into the work shall be weed-free. The Contracting Officer may request written documentation of methods used to determine the weed-free status of any and all materials furnished by the contractor. Contractor-provided expertise and methods to establish weed-free status must be appropriate for the weeds of concern in the local area. The following applies to this contract:

A Forest Service weed specialist will inspect proposed sources to determine weed-free status. Provide the Contracting Officer written notification of proposed material sources 30 days prior to use. Written approval of the specific source will be provided to the contractor by the CO. If weed species are present in the proposed source, appropriate mitigation measures may allow conditional use of the source as required by the Contracting Officer.

106 - Acceptance of Work 106.01_National_7_18_2017

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.

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_11_9_2016

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.

107 - Legal Relations and Responsibility to the Public

107.05_National_7_18_2017

Delete Subsection 107.05.

Delete Subsection 107.05.

108 - Prosecution and Progress 108.00_National_11_9_2016

Delete Section 108 in its entirety.

Delete Section 108.

109 - Measurement and Payment 109.00_National_11_9_2016

Delete Subsections 109.06, 109.07, 109.08, and 109.09:

Delete Subsections 109.06, 109.07, 109.08, 109.09.

109.01_National_2_22_2019

Delete the third paragraph and Table 109-1 of Subsection 109.01 and replace with the following:

109.01 Measurement of Work.

Take measurements as described in Subsection 109.02 unless otherwise modified by the Measurement

Subsection of the section controlling the work being performed. Table 109-1 indicates the accuracy required for quantities of the various pay units used in the Schedule of Items. Use this guide to determine the decimal placement in the final payment.

Table 109-1

Decimal Accuracy of Quantities for Final Payment

Pay Item Level of Precision

Linear Foot 1

Exception--Timber, Steel, and concrete Piles 0.1

Station 0.1

Mile 0.01

Square Foot 0.1

Square Yard 0.1

Each 1

Acre 0.01

Gallon 1

M-Gals. 0.1

Cubic Yard 1

Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;

0.1

Exception--Concrete; Masonry 0.01

Pound 1

Ton 0.1

Exception--Calcium Chloride;

Sodium Chloride; Hydrated Lime;

Bituminous Materials; Pavements;

Bed Course Materials

0.01

Hour 0.1

MFBM 0.01

Station Yard 1

Cubic Yard Mile 1

Ton Mile 1

109.02_National_11_9_2016

Add the following sentence to Subsection 109.02(b):

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

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

152 - Construction Survey and Staking 152.00_National_2_25_2019

Add the following to Subsection 152.04(c):

152.04 General.

(c) Material.

Use required stake dimensions and materials. Pre-paint the top 2 inches of all stakes and lath, or mark them with plastic flagging. Use designated colors for paint or flagging. Mark all stakes with a stake pencil that leaves a legible imprint, or with waterproof ink.

Do not use aerosol spray paints.

Use moisture-resistant paper for survey notes. Keep notes in books with covers that will protect the contents and retain the pages in numerical sequence.

Make the following changes to Subsection 152.05:

152.05 Survey and Staking Requirements.

Delete Subsection 152.05(d)(2) and replace with the following:

(d) Slope and reference stakes.

(2) Conventional survey methods. When required, locate slope stakes on designated portions of the road. Locate the slope stake catch points and use them to establish clearing limits and slope stake references.

Mark slope stakes with the station, the amount of cut or fill, the horizontal distance to centerline, and the slope ratios.

Place slope reference stakes at least 10 feet outside the clearing limit and mark with the offset distance to the slope stake. Place sight stakes when required.

Prior to clearing and grubbing operations, move the slope stake outside the clearing limit to the slope reference stake. After clearing and grubbing and before excavation, reset the slope stakes in their original position.

Use the designated method to establish the slope stake catchpoint.

Method I—Computed Method. Use the template information shown in the plans or other

Government-provided data to calculate the actual location of the catchpoint. The slope stake “catchpoint distance” provided may be used as a trial location to initiate slope staking.

Recatch slope stakes on any section that does not match the staking report within the tolerances established in Table 152-2.

Method II—Catchpoint Measurement Method. Determine the location of slope stake catchpoints by measuring the catchpoint distances shown in the plans or other

Government-provided data.

Add the following to Subsection 152.05(e):

(e) Clearing and grubbing limits.

Mark the clearing limits with flagging or tags on trees to be left standing, or on lath. Make markings intervisible, and no more than 90 feet apart.

After establishing clearing limits, move the location line stake outside the clearing limits for station identification purposes, and mark it with horizontal distance to location line.

Replace Table 152-1 with the following:

Table 152-1 Construction Survey and Staking Tolerances Table 152-1

Construction Survey and Staking Tolerances (1)

Staking Phase Horizontal Vertical

Control points set from existing

Government control points- Tolerance Class

A

±0.03 feet

(±10 millimeters)

±0.01 feet × N

(±3 millimeters × N )(2)

Mapping, topography, and cross-section

Points- Tolerance Class A

±0.16 feet

(±50 millimeters)

±0.16 feet

(±50 millimeters)

Centerline points (3) including (PC), (PT), (POT),(POC), and references- Tolerance Class

A

±0.06 feet

(±20 millimeters)

±0.06 feet

(±20 millimeters)

Slope-stake and slope-stake references-

Tolerance Class A (4)

±0.16 feet

(±50 millimeters)

±0.16 feet

±50 millimeters)

Culverts, ditches, and minor drainage structures stakes- Tolerance Class A

±0.16 feet

(±50 millimeters)

±0.06 feet

(±20 millimeters)

Retaining walls stakes ±0.06 feet

(±20 millimeters)

±0.03 feet

(±10 millimeters)

Curb and gutter stakes ±0.06 feet

(±20 millimeters)

±0.03 feet

(±10 millimeters)

Bridge substructures stakes ±0.03 feet

(±10 millimeters)(5)

±0.03 feet

(±10 millimeters)

Bridge superstructures stakes ±0.03 feet

(±10 millimeters)(5)

±0.03 feet

(±10 millimeters)

Clearing and grubbing limit stakes- Tolerance

Class A

±1.00 feet

(±300 millimeters)

Table 152-1

Construction Survey and Staking Tolerances (continued) (1)

Staking Phase Horizontal Vertical

Roadway subgrade finish stakes- Tolerance

Class A (6)

±0.16 feet

(±50 millimeters)

±0.03 feet

(±10 millimeters)

Roadway finish grade stakes (6) ±0.16 feet

(±50 millimeters)

±0.03 feet

(±10 millimeters)

Control points set from existing Government control points –Tolerance Class B (7)

±0.16 feet

(±20 millimeters) ±0.16 feet ×

(±20 millimeters × )(2)

Mapping, topography, and cross-section points–Tolerance Class B (7)

±1.00 feet

(±300 millimeters)

±0.50 feet

(±150 millimeters)

Centerline points including (PC), (PT), (POT),(POC), and references–Tolerance Class

B (7)

±0.16 feet

(±20 millimeters)

±0.16 feet

(±20 millimeters)

Slope-stake and slope-stake references–

Tolerance Class B (7)

±0.50 feet

(±50 millimeters)

±0.16 feet

±50 millimeters)

Culverts, ditches, and minor drainage structures stakes–Tolerance Class B (7)

±0.50 feet

(±150 millimeters)

±0.16 feet

(±20 millimeters)

Clearing and grubbing limit stakes–Tolerance

Class B (7)

±2.00 feet

(±600 millimeters)

Roadway subgrade finish stakes–Tolerance

Class B (7)

±0.50 feet

(±50 millimeters)

±0.16 feet

(±10 millimeters)

Roadway finish grade stakes–Tolerance Class

B (7)

±0.50 feet

(±50 millimeters)

±0.16 feet

(±10 millimeters)

(1) At statistical 95 percent confidence level. Tolerances are relative to existing Government control points.

(2) N is the number of instrument setups.

(3) Centerline points: PC - point of curve, PT - point of tangent, POT - point on tangent, POC - point on curve.

(4) Take the cross-sections normal to the centerline ±1 degree.

(5) Bridge control is established as a local network and the tolerances are relative to that network.

(6) Includes paved ditches.

(7) Tolerance Class B for Very Low Volume Roads with an aggregate or native finished surface.

N

N

153 - Contractor Quality Control 153.02_National_2_25_2019

Delete Subsection 153.02 and replace with the following:

153.02 Qualifications.

Submit the following for approval with the quality control plan:

(a) Quality control manager (QCM). Furnish a QCM who has at least 2 years’ experience in construction, inspector, quality control and material testing on construction projects of similar type and scope.

(b) Testers. Provide testers with at least one year experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:

(1) NICET Level II certification in highway material or equivalent state or industry certification;

(2) Certification by a regional certification program (such as Western Alliance for Quality

Transportation Construction (WAQTC), Northeast Transportation Technician Certification Program

(NETTCP), Southeast Task Force for Technician Training and Qualification (STFTTQ), or Multi

Regional Training and Certification (M-TRAC)); or

(3) At least one year employment by an AASHTO accredited laboratory performing equivalent sampling and testing.

153.03_National_2_25_2019

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

153.03 Quality Control Plan.

(b) Quality Control Procedures.

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_2_25_2019

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.

153.07_Project_2_28_2022

Add the following.

153.07. Project Submittals

At a minimum the contractor shall provide project submittals as shown on the Submittal Log below. Submittal requirements are listed in the Standard Specifications, Supplemental Specifications, and Drawings.

Submittal Log

Log

No.

Incidental to Pay

Item(s) Description of Submittal

Type of

Submittal

Requirement found in

Specification No.

/Drawings

Additional

Specification

References

1 151 Submittal Schedule Schedule

2 151 Weed Free Material Source

Certification

Material

Certification FSSS 105.02(b)

3 151 Hazardous Spill Plan Plan FSSS 107.10

4 151 Contractor Quality Control Plan Plan 153.02 552.09

5 151 Material Storage/Staging Plan Plan and

Description FSSS 151 Drawings

6 151 Traffic Control Plan Plan FSSS 156

7 152 Surveyor Credentials Certification FSSS 152

8 611 Water Tank Material

Certification

FSSS 611,

Drawings

9 611 Stock Tank Material

Certification

10 611 Water Pipe, Fittings, Hydrants, Vaults & Appurtenances (Including Tracer Wire)

Material

Certification

11 611 Pipe Bedding Material Material

Certification 704.02

12 636 Pumps Material

Certification Drawings

13 636

Solar Panels (Complete Submittal including panels, support/base, inverter, tank level floats, conduits, fittings, wiring and other appurtenances)

Material

Certification /

Drawings, 636

155 - Schedules for Construction Contracts 155.00_National_11_9_2016

Delete Section 155 in its entirety.

Delete Section 155.

156 - Public Traffic 156.00_National_2_25_2019

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

Section 156. – PUBLIC TRAFFIC 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:

Temporary Traffic Control 635

Construction Requirements

156.03 General. The Contractor will be allowed to close the stock parking lot (southeast), at the project site, to through-traffic, for the duration of the project. The trailhead parking lot (northwest) shall remain open during construction activities. The Contractor will be responsible for providing, installing, maintaining, and removing road closure signs during the construction period. The Contractor shall be responsible for providing, installing, maintaining, and removing type 3 barricades at the project site for the road closure period.

The contractor shall provide and install one informational sign for the duration of the project. The road closed ahead sign is to be place as directed by the CO and shall read similar to (Contractor to get specific wording from CO prior to production):

The contractor may close the stock parking lot for two months between June/July of 2022 or between

June/July of 2023. Periodic delays of up to 30 minutes will be allowed outside of the stock parking lot closure for material transport (if necessary).

Contractor to coordinate with the CO on the specifics for miles ahead language on the signage.

Accommodate traffic according to the MUTCD and approved traffic control plan and this section.

Perform work in a manner that ensures safety and convenience of the public. Accommodate public traffic on roads adjacent to the project until the project is accepted according to Subsection 106.07(b).

INDIAN MEADOWS –

STOCK ACCESS

CLOSED

XX MILES AHEAD

Submit traffic control plan at least 15 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.

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

Measurement and Payment

156.06 Do not measure Public Traffic for payment. Payment for this item shall be incidental to

Mobilization. See Subsection 109.05.

611 – Water Systems

611.02_Project_2_28_2021

Add the following to the end of Section 611.02

611.02 Materials

BALL VALVES

A. Ball valves for water service shall be of bronze or brass construction with two-piece end entry body, bronze or brass ball, teflon or Viton stem seal, reinforced teflon seats and thrust washer, a removable operating lever, and threaded ends.

B. Valves shall be rated not less than 500 psi nonshock cold WOG and shall be driptight in both directions.

C. Valves shall be Conbraco Industries "Apollo 70-100 Series", Powell "Fig 4210T", Stockham "S-216” or approved equal.

FROST-FREE HYDRANT

A. Hydrant to be Certified Lead Free to NSF/ANSI 372-2016, Drinking Water System Components.

B. Hydrant shall have a brass foot valve, hose adaptor and pivot connector.

C. Hydrant to be steel, zinc-plated 1 in. diameter pipe with ¾ in. FNPT connection.

BURIED POLYETHYLENE STORAGE TANK

A. Tank shall be manufactured from high-density polyethylene with U.V. inhibitors. Resins must be FDA compliant for potable water use.

B. Tank shall be sectional ribbing designed to withstand up to 400 psf load pressure.

C. Tank shall be equipped with multiple fitting flats to accommodate a variety of plumbing configurations.

D. Tank shall have a minimum 20-inch diameter access cover and riser. A closed cell foam gasket shall be installed between the riser and the tank to ensure a water-tight seal.

611.03_Project_2_28_2021

Add the following paragraphs to the end of Section 611.03

611.03 General

Install all valves, equipment and accessories in accordance with the manufacturer’s requirements.

Reference shall be made to jointing and alignment specifications.

Pressure test all valves in a similar manner to and in conjunction with the testing prescribed for piping systems. Additionally, individually test each valve for full and unhindered operation after installation.