JLWC-WaterSystemRenoSpecs.docx

CSI SPECIFICATION INDEX

FOR

Jacob Lake Work Center Water System Renovation

DIVISION 1 – GENERAL REQUIREMENTS

01601 – Mobilization

DIVISION 2 – SITE WORK

02610 – Pipe, Fittings, and Specialties 02641 – Valves 02642 – Valve Enclosures 02663 – Pipe Marking: Detecting Tape and Tracer Wire

DIVISION 3 – CONCRETE

03100 – Concrete Formwork 03201 – Concrete Reinforcement 03251 – Expansion and Contraction Joints 03301 – Cast-In-Place Concrete 03345 – Concrete Finishing

DIVISION 15 – MECHANICAL

15112 – Backflow Prevention Assemblies

DIVISION 16 – ELECTRICAL

16000 – Power Distribution and Service

END OF SPECIFICATION INDEX

CSI SPECIFICATION INDEX

PROJECT COORDINATION

01000

DIVISION 1 GENERAL

PROJECT COORDINATION – 01000

01000-2

01000-2

PART 1 - GENERAL

01000-3

1.1 - Description

This work shall consist of coordination with government agencies and the general public.

1.2 - Related Sections

01010 - Summary of Work

PART 2 - PRODUCTS

None

PART 3 - EXECUTION

3.1 - Government Agencies

All permits necessary for construction and occupancy of the project shall be obtained by the contractor.

There are no permits required by Arizona Department of Environmental Quality (ADEQ).

01000-3

3.2 – Forest Service

Contract work shall coordinate with COR to provide minimum interruption and planned service disconnections during normal operating hours. Contractor shall provide a minimum 48 hour notice to COR prior to service interruption.

END OF SPECIFICATION 01000

SUMMARY OF WORK

01010

DIVISION 1 GENERAL

SUMMARY OF WORK – 01010

PART 1 - GENERAL

1.1 - Location

The project is located in Coconino County, at the Jacob Lake Work Center in Jacob Lake, Arizona. The site is located at the intersection of Highway 67 and Highway 89A approximately 30 miles southeast of Fredonia, Arizona. To reach the work center from Jacob Lake, go south on Highway 67 approximately ½ mile, turn right (west) on FR 461 and go approximately ½ mile. The work center will be on your left (south side of FR 461).

1.2 - Site Work and Utilities

General:

All work shall be completed in accordance with local/state applicable codes, project specifications, and construction drawings. The work includes all labor, material, and equipment necessary to perform all the operations for the work specified.

Site Work:

The purpose of this project is to replace existing water utility components at this site. The project consists of installing or replacing specified valves and valve enclosures; and may include construction of foundation drains (additive items).

1.3 Definitions:

Building and trailer pad designations match those SHOWN ON DRAWINGS

TITLE ON DRAWING:COMMON NAME(S)

B1: Dorm B B2: Dorm A B3: Dorm C B4: Common Use Building B5: JL Warehouse T1A: northern most trailer pad T1B: 2nd northern most trailer pad T2A: 3rd trailer pad from the north T2B: 4th trailer pad from the north T3B: closest trailer pad to B1 (Dorm B) T3A: 2nd closest trailer pad to B1 (Dorm B) T4: Trailer pad southeast of B3 (Dorm C) T5: Trailer pad southwest of B3 (Dorm C)

1.4 Work description:

1. Replace building stop valves & main system valves.

1.1. Install new curb stop and drain valves V1, V2, V9, V12, V15 for buildings B1, B2, B3, B4, and B5. Replace existing valves where such can be found. Valves shall be located 30” from foundation wall where possible (see drawings). Valves shall be a 1” (or match existing service line) stop & drain valve, and shall connect to water main such that dissimilar metals are not touching.

1.2. Replace and install valve V20 with new 1-1/2” curb stop valve.

1.3. Install new 1” curb stop valves for drain lines (V16 & V10). For V16, remove existing 24” x 24” concrete pad, two valves (one valve for the drain line, one leading to B3), and two valve boxes. Repair waterline where valves are removed. For V10, replace existing drain valve.

1.4. Replace and install 2” stop and drain valve (V11) for stand pipe.

1.5. Install new 4” gate valves (V17, V18, V19, & V21) on existing 4” PVC line. V17, V18, & V19 are replacement valves (remove existing valve); V21 is a new valve.

1.6. Install new 7” diameter cast iron frame (valve box) and cover for each valve installed. Ensure installation prevents debris from entering between the existing water line and new valve box.

2. Replace RV pad service valves.

2.1. Install new service connection for RV pads T1A, T1B, T2A, T2B, T2A, T3B, T4, and T5. An RV connection includes (one) ¾” curb stop and drain valve, and (two) ¾” hose bibs on a tee (see drawings). Valves shall be located as described in detail 6/4 (see drawings). Valves shall connect to water main such that dissimilar metals are not touching. Provide and install atmospheric vacuum breakers on each of the hose bibs.

2.2. Install new 7” diameter cast iron frame (valve box) and cover over each new curb stop and drain valve. Ensure installation prevents debris from entering between the existing water line and new valve box.

2.3. Install new “meter box” enclosure for each RV pad (see detail 5/2).

3. New Double Check Valve Assembly

4. Existing Air Release Valve:

5. Install stop valves for fire hydrants –

5.1. Install (3) new 4” gate valves FV1, FV2, FV3 for individual isolation of fire hydrants FH1, FH2, & FH3. Provide 7” dia. cast iron valve box for each valve and level box to surface material. Gate valve shall not be more than 5’ from fire hydrant. If soil within 6” of fire hydrant is disturbed, contractor shall reestablish compaction and thrust blocks for fire hydrants.

6. Building B1 & B2 foundation drainage – additive items #1 & 2

6.1. Install foundation drain system for building B2 as described in the drawings, including a foundation drain surrounding the building, a drain line, and drain outlet. – additive item #1

6.2. Install foundation drain system for building B1 as described in the drawings, including a foundation drain surrounding the building, and a connection to B2’s foundation drain system. – additive item #2

1.5 - Timing of Work

This work is anticipated to start September 1, 2014. The site shall be open to normal work activities during construction. Contractor shall provide 48 hour notice prior to service disruptions and coordinate with COR. No restrictions are placed on weekend work. Due to wildland fire suppression operations, water shall be accessible through the stand pipe within 2 hours at all times. Water system shall be functional each day between 6PM and 6AM.

1.6– Use of Government Facilities

1. The site is available to the Contractor for staging and storage during construction. Any damage resulting from the Contractor's use of the site will be repaired or replaced at the Contractor’s expense at the direction of the Engineer.

2. Camping sites: No Forest Service campgrounds shall be made available for use by Contractor or his/her employees.

3. Sanitary facilities for construction workers shall be furnished and maintained by the Contractor during the life of the contract.

4. All temporary services and use areas shall be completely removed and the areas restored upon completion of use.

5. Electricity is available on site for contractor’s use.

6. Water is available on-site.

7. Transportation to and from the work site for the Contractor's personnel and materials will be provided at the Contractor's expense.

1.7 - Material Sources

All materials shall be obtained from a commercial source unless noted otherwise.

1.8 - Clean up and Disposal

The Contractor shall keep the work site free from accumulation of waste materials and rubbish resulting from the work.

Disposal of waste material will be off National Forest Land and in compliance with local, state and federal laws regarding disposal of construction waste.

Before final acceptance of the project by the Government, the Contractor shall remove from Government land all waste materials and rubbish resulting from this work.

1.9 - Subsurface Soils and Investigations

No auger boring tests where made in the area. Under supervision of the Engineer, the Contractor shall undertake any site investigations necessary to ascertain subsurface conditions.

The Forest Service has made every attempt to refelct the location of existing utility lines accurately on the attached drawings. The exact location of the lines, however, may vary. The Contractor shall take care during excavations in the area of known lines or near any existing buildings. The Contractor shall field verify the excat location of existing utility lines for the purpose of making new connections.

Prior to commencement of work, the Contractor shall call Blue Stake for all commecial utility line locations: 1-800-782-5348.

2.0 - Precautionary Measures

Environmental Protection:

All vehicles and equipment entering the project area must be clean of noxious weeds and will be subject to inspection. Wash all construction equipment to thoroughly remove all dirt, plant, and other foreign material prior to entering the project. Particular attention must be given to the under carriage and any surface where soil containing exotic seeds may exist.

Protection of Work:

The Contractor shall take precautions to protect all work during the construction period and shall provide and maintain adequate protection during severe weather conditions to prevent damage to the work, materials and equipment.

Safety:

The Contractor is responsible for safeguarding employees, public, existing facilities, and forest resources from his operations. All operations shall be in compliance with the requirements and restrictions of OSHA, the Arizona Occupational Safety and Health Code, and the Workman’s Compensation Board. The Contractor shall erect signs and chain-link fencing barricades as necessary to make unguarded operations safe. Signs and barricades shall be maintained at night and on weekends. Precautions such as lowering tractor blades and safely storing materials shall be practiced to prevent injury to others in the area.

Security:

No security shall be provided by the Government. The Contractor shall take all precautions deemed necessary to secure the worksite, improvements and equipment. This may include security fencing and/or a night watchman with mobile communication.

END OF SPECIFICATION 01010

SUBMITTALS

01300

DIVISION 1 GENERAL

SUBMITTALS – 01300

01300 - 8

01300 - 7

1.1 - Requirements

It will be the Contractor's responsibility to submit all items with such promptness as to cause no delay in the work. Approvals must be obtained before starting work which involves the item. Contractor shall allow ten (10) days for processing of submittals by the Government.

Submittals may also be referred to as SHOP DRAWINGS.

1.2 - Manufacturer's Literature and Shop Drawings

Submit two (2) copies to the Engineer for approval on the items required herein.

Submittal specifications are to be submitted in the following format:

A. The specifications and salient qualities of the item specified in the contract.

B. The specifications and salient qualities of the submittal item.

C. A listing of the differences and a comparison between the two, including but not limited to the structural qualities, operational qualities, any modifications necessary to accomplish installation of unit, and guarantee and warranty.

D. A cost comparison between the specified and submitted item(s) with the cost reduction benefit to the government or adequate justification for a cost increase to the government.

E. Shop drawings of submitted item(s) including wiring or layout diagrams.

If there are any modifications necessary to facilitate installation, a set of drawings showing installation of specified item and a set showing how the submittal item will be installed.

Submittals will be waived if Contractor furnishes exact item used for design when manufacturer's model, size, etc. are shown in the contract.

Submittals are required per the following sections:

1. 01410 – Quality Control and Quantity Measurement Contractor's Representative Designation 2.

01300 - 9 Project Schedule Quality Control Plan Sampling, Testing, Inspection As-Built Drawings Test Results

3. 02223 – Excavation and Backfill for Utilities Bedding - product type, size, and material

4. 02610 – Pipe, Fittings, and Specialties Product type, size, and material All components of the Foundation Drain shall be submitted.

5. 02641 – Valves Product type, size, and material

6. 02642 – Valve Enclosures Product type, size, and material

7. 02663 – Pipe Marking: Detecting Tape Product type, size, and material

7. 03201 – Concrete Reinforcement Product, Type, Size

8. 03301 – Cast-In-Place Concrete Mix Design, Admixtures, Cement, Aggregate

9. 15112 – Backflow Prevention Assemblies Product type, manufacturer, size, and material Enclosure – Type, manufacturer, size, and material

10. 16100 – Electrical Distribution System Circuit Breakers, control, disconnect boxes, GFCI duplex receptacle, heat tape

Other required submittals include all those as specified in the referenced Forest Service Specifications for this project.

END OF SPECIFICATION 01300

QUALITY CONTROL & QUANTITY MEASUREMENT

01410

DIVISION 1 - GENERAL

QUALITY CONTROL AND QUANTITY MEASUREMENT - 01410

01410 -

01410 - 9

This work shall consist of providing quality control in conformance with the Inspection of Construction provisions of this contract to ensure compliance with the drawings, specifications, and provisions of the contract, and measuring the quantities of completed work in conformance with the provisions of the applicable specification. The Contractor shall provide all personnel, equipment, tests, and reports necessary to meet the requirements of this specification.

1.2 - Related Work Specified Elsewhere

General Provisions FAR 52.236-5, Material and Workmanship

01410 - General Provisions FAR 52.236-6, Superintendence by the Contractor General Provisions FAR 52.246-12, Inspection of Construction

1.3 - Submittals

Submittals under this section shall be furnished to the Engineer. Submittals include, but are not limited to the following:

Contractor's Representative Designation

01410 - Project Schedule Quality Control Plan Sampling, Testing, Inspection, and Measurement of Quantities As-Built Drawings Test Results

None

3.1 - Contractor's Representative

Submit a letter to the Contracting Officer stating the name of the on-the-job superintendent or representative for the Contractor and the duties and authorities of the representative during work under this contract.

01410 - 10

3.2 - Project Schedule

Submit a project schedule stating information such as proposed dates of completion of various elements of construction.

3.3 - Quality Control Plan

The Quality Control Plan shall consist of the following:

(1) Authorities and responsibilities of inspection and testing personnel.

(2) Experience and qualifications of inspection and testing personnel to be assigned and name and location of any (for hire) testing facility to be used.

The Contractor's proposed quality control plan for all items requiring quality control shall be submitted to the Engineer for review prior to the Contractor commencing work. Within 10 days of receipt of the plan, the Engineer shall notify the Contractor whether the plan adequately covers quality control requirements. Construction work shall not be performed prior to Contractor's receipt of written approval of the proposed plan. The Contractor shall submit to the Engineer, in writing, any proposed changes in the approved quality control plan. Proposed changes shall not be put into effect until approved in writing by the Engineer.

All work shall comply with local applicable codes and codes referenced in individual sections of the technical specifications.

3.4 - Sampling, Testing, Inspection, and Measurement of Quantities

The Contractor shall provide and maintain appropriate measuring and testing devices, equipment, and supplies to accomplish the required measurement, testing, and inspection in a timely manner. Tests, measurements, and certifications shall be made as required by the drawings and specifications. The Contractor shall take samples and perform inspections and tests necessary to achieve the quality of construction required by the contract and make required measurements of work under this contract performed onsite or offsite. Sampling and testing frequency for specific items shall be specified in the related section.

The Contractor shall maintain current records of all inspections and tests performed. The following information will be acceptable to the Government:

PROJECT___________________NAME:________________________

CONTRACT No._____________________

01410 - 3 Pay Item No. Test Date Location Standard Results Test By

01410 - 11 (Initials)

01410 - 3 The Contractor shall engage inspection and testing agencies which are prequalified as complying with the recommendations of "Independent Laboratory Qualification" by the American Council of Independent Laboratories, and which specialize in the types of inspections and tests to be preformed.

The Contractor shall protect construction exposed by or for quality control service activities and protect repaired construction. Upon completion of inspection and testing repair damaged construction and restore substrates and finishes to eliminate deficiencies. The Contractor is responsible for repair and protection of inspected work, whether inspection is performed by the Contractor or by the Government.

01410 - 11

The Contractor shall certify in writing that all inspections and tests were performed in accordance with specifications.

3.5 - As-Built Drawings

The Contractor shall maintain a set of the contract drawings depicting as-built conditions. These drawings shall be maintained in a current condition and shall be available for review. All variations from contract drawings shall be indicated in red on the drawings. Upon completion of the contract work, as built drawings shall be submitted to the Contractoring Officer (CO) or Contracting Officer Representative (COR).

3.6 – Aggregate/ Fill Materials

When the material sources are not designated as Government-furnished or the Contractor elects not to use designated sources, the Contractor shall be responsible for furnishing materials that produce an end product equivalent in performance to that originally designated and that meets contract specifications.

01410 - 12

01410 - 12

END OF SPECIFICATION 01410

DIVISION 1-GENERAL REQUIREMENTS

01601 – MOBILIZATION

PART 1 – GENERAL

1.1 – Description

This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

PART 2 – PRODUCTS

None

PART 3 – EXECUTION

None

PART 4 – MEASUREMENT AND PAYMENT

Progress payments will be made as follows:

The Contractor can request payment for performance and payment bonds. The amount of the premium, including coinsurance and reinsurance agreements, will be paid upon receipt of evidence of full payment to the surety. When separate payment for bonding cost is made, the bonding cost will be subtracted from the total contract amount for this pay item and the balance paid in accordance with the progress payment schedule outlined below.

(a) When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

(b) When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

(c) Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

Any bonding costs in excess of the total contract amount of this pay item will be paid under one or more other pay items under this contract as determined by the Contracting Officer. In no circumstance will the total amount of this contract be increased as a result of bonding costs exceeding the total contract amount of this pay item.

The total of all payments shall not exceed the original contract amount for this item.

4.2 – Payment

Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01601(01) Mobilization (Base Bid) LS

END OF SPECIFICATION 01601

MOBILIZATION – 01601 13

DIVISION 2 – SITE WORK

EXCAVATION AND BACKFILL FOR STRUCTURES – 02221 - 15

EXCAVATION AND BACKFILL FOR STRUCTURES – 02221

02221-16

PART 1 – GENERAL

02221-12

1.1 – Description

This section covers excavation; furnishing, hauling and placing backfill material; watering; compaction; disposal of excess or unsuitable excavated material; and final grading for structures.

1.2 – Related Work Specified Elsewhere

03301 - Cast-in-Place Concrete

1.3 – Material Classification

Material to be excavated is unclassified. Contractor is advised to classify the material to their satisfaction.

PART 2 – PRODUCTS

2.1 – Backfill Materials

Backfill materials shall be readily compactible excavated material free of frozen or organic material, highly plastic clay or other objectionable material and shall contain no rock larger than 3 inches.

2.2 – Water

02220-16

02220-16 Water shall be reasonably clean and free of injurious substances.

PART 3 – EXECUTION

3.1 – Excavation

02221-15

Operations shall be in compliance with the requirements and restrictions of OSHA, the Arizona Occupational Safety and Health Code, and the Workman's Compensation Board.

Conform to the clearing boundary AS SHOWN ON THE DRAWINGS.

Extend excavation beyond exterior finished structure dimensions to allow for placing and removal of forms and other appurtenances.

02221-14

02221-18 When the structure is to rest on material other than rock, excavation to final grade shall not be completed until just before the structure is to be placed.

EXCAVATION AND BACKFILL FOR STRUCTURES – 02221 - 16

02221-17

3.2 – Excess Material (Suitable and Unsuitable)

All suitable excavated materials shall be used as backfill.

02220-13

02220-17 All excavated materials not required or unsuitable for backfill shall be utilized on the site or removed to waste areas as directed by the Engineer.

02221-19

PART 4 – MEASUREMENT AND PAYMENT

4.1 – Method of Measurement

Trenching, backfill and compaction will be measured for payment along the centerline of the trench. Additional excavation and backfill for valve boxes and service hookups are considered incidental to the items herein or elsewhere in the contract and will not be measured separately for payment.

Trenches to proposed building structures will be measured to the stub-up location. All other utility trenching will be measured to the point of service or point of connection.

4.2 – Basis of Payment

Payment will be made at the contract unit price as listed in the "Contract Schedule of Items" for quantities measured and accepted as follows:

02221(01) 02221(02) Excavation and Backfill – Building B2 (Additive Item 1) Excavation and Backfill – Building B1 (Additive Item 2)

LF

LF

END OF SPECIFICATION 02221

SEWAGE LAGOON

02594

02223- 02223-15

DIVISION 2 - SITE WORK

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 17

EXCAVATION AND BACKFILL FOR UTILITIES – 02223

02223-15

02223-18

02223-14

This section covers excavation; furnishing, hauling, and placing select backfill materials; watering; compaction; disposal of excess or unsuitable material; and grading for utilities.

1.2 - Related Work Specified Elsewhere

02610 – Pipe, Fittings, and Specialties 02641 – Valves 02642 – Valve Enclosures 02663 – Pipe Marking: Detecting Tape and Tracer Wire 16100 – Power Distribution and Service

1.3 - Class of Material

Material to be excavated for installation of utilities is unclassified. Contractor is advised to classify the material to their satisfaction.

1.4 - Approvals Required

Excavation Notify COR when excavation is completed. Do not place pipe, bedding, or backfill until the excavation is approved by the COR.

Commercially Supplies Bedding, Shading, & Backfill Material Submit material certification for COR approval prior to supplying backfill materials to project.

02223-16 Backfill Do not place shading or backfill until installation of pipe has been approved by the COR.

02223-17

1.5 - Backfill Time Limit

Backfill and restore surface materials of utility line trenches located in existing roadways or parking areas within 24 hours after approval to place backfill by the Engineer.

02223-20

2.1 - Backfill Materials

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 18

Backfill shall contain no frozen or organic material.

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 18

(a) Select Excavated Material Excavated material containing no rocks larger than 6 inches in largest dimension.

(b) Bedding/Shading Material Fine sand or soil with a maximum P.I. of 10, 100% passing the 3/8" sieve, without sharp chips or points.

02223-19

(d) Conduit Backfill Material free of sharp edges and rocks greater than 4" inches diameter.

2.2 Water

Furnish water that is reasonably clean and free of substances detrimental to the work.

2.3 Marking Tape

Plastic marking tape printed with the words “Buried Water Line” or approved wording. Contractor may use “Detectatape” by Allen Systems, Inc., Terra-Tape, or approved equal.

3.1 - Excavation

Excavation shall not begin until all clearing or grubbing work has been completed. Operations shall be in compliance with the requirements and restrictions of OSHA, the Arizona Occupational Safety and Health Code, and the Workman's Compensation Board.

All trenches shall be excavated in reasonably close conformity with the lines and grades shown on the drawings. Any shifting or change from the alignment and grade shown on the drawings must receive prior approval by the Engineer in writing.

Lay utilities in continuous open trench. Short tunnel sections or boring may be used in special locations with the approval to the Engineer.

Trim roots flush with trench wall.

3.2 - Over excavation

Restore to grade any over excavation by backfilling with bedding material.

02223-21

3.3 - Wet Excavation

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 19

If water is encountered during trench excavation, provide adequate pumping equipment and piping to keep trench free from water and dispose of the water without damage to adjacent property. Separate payment will not be made for pumping of water from trenches or for excavation of material rendered unsuitable as a result of water encountered.

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 19

02223-22

3.4 - Backsloping, Sheeting and Shoring

Backsloping of trench walls will be allowed only upon prior written approval of the Engineer.

Remove all shoring and sheeting when construction is completed. Withdraw shoring in such a manner as to prevent trench wall from caving in while backfilling.

3.5 - Excavated Material

Pile excavated material at the side of the trench where it will provide the best protection for the work. Leave adequate space between the toe of the spoil pile and edge of trench, to prevent material from falling into the trench.

3.6 - Backfill

Before compacting backfill other than rock or sand, prepare material to a water content that will permit proper compaction by either aerating the material if it is too wet, or spraying the material with water if it is too dry. Thoroughly mix each lift before compaction to assure uniform distribution of water content. Do not compact material above pipe until there is 6 inches of cover over the pipe. There shall be no machine compaction within 6" of an electric cable or conduit. Compact each lift to the required density.

(a) Bedding and Shading Place in lifts 6 inches or less and compact with a minimum of 3 passes over the entire lift surface. Compact around pipe barrel and bells by hand tamping.

(b) Select Excavated Material and Conduit Backfill Distribute large rocks so they are individually surrounded by fine materials. Place 12-inch lifts or less and compact to at least 90% of the maximum dry density as determined by AASHTO T-99.

(c) Backfill and Compaction in Roadways Place 6-inch lifts and compact to at least 95% of maximum dry density as determined by AASHTO T-99.

(d) Surface Restoration In Areas Other Than Roads All surfaces shall be restored to the required grade (usually original ground line), mounded over or smoothed off as directed, and left in a uniform and neat condition, to the satisfaction of the Contracting Officer. Surface drainage shall be diverted so that it will not follow along a trench. In areas where natural re-vegetation is designated (no planting to be done), the Contractor shall scarify all disturbed or compacted areas and right-of-ways such that the surface of the ground is loose to a depth of at least one inch.

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 20

(e) Final Finish After the utility installation and backfill have been completed, finish all disturbed areas, except trench area required to be mounded AS SHOWN ON DRAWINGS, to a smooth, uniform grade and texture, well blended to the original contours, showing minimum evidence of construction activity.

(f) Trenches in Embankments When pipelines are to be placed in trenches excavated in embankments, the excavation of each trench shall be performed after the embankment has been constructed to a place at least 3 feet over the pipe or to finish grade, whichever is least.

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 21

3.7 - Disposal of Excess Excavation and Unsuitable Material

02223-21 All suitable excavated materials shall be used as backfill.

02220-21

02220-33 All excavated materials not required or unsuitable for backfill shall be utilized on the site or removed to waste areas as directed by the Engineer.

3.8 – Finishing and Cleanup

After the pipeline installation and backfill has been completed, the disturbed area along the pipeline shall be finish graded to present as near a natural appearance as possible and cleaned up by removing all debris and materials not utilized. Stockpiled topsoil shall be smoothly distributed over disturbed areas.

4.1 – Method of Measurement

Utility trenching, backfill and compaction will be measured for payment along the centerline of the trench. Additional excavation and backfill for valve boxes and service hookups are considered incidental to the items herein or elsewhere in the contract and will not be measured separately for payment.

Utility trenches to proposed building structures will be measured to the stub-up location. All other utility trenching will be measured to the point of service or point of connection.

Payment will be made at the contract unit price as listed in the "Contract Schedule of Items" for quantities measured and accepted as follows:

02223(01)

02223(02) 02223(03) Electric Trench (Base Bid)

Excavation and Backfill – drain line – B2 (Additive Item 1) Excavation and Backfill – drain line – B1 (Additive Item 2)

LF

END OF SPECIFICATION 02223

02665-

EXCAVATION AND BACKFILL FOR UTILITIES – 02223 – 21

DIVISION 2 SITE WORK

PIPE, FITTINGS, AND SPECIALTIES 02610

PART 1 - GENERAL

1.1 - Scope

This section specifies furnishing pipe, fittings, and specialties. Installation of these items is covered in other sections of the specifications

All references to pipe sizes refer to the nominal diameter.

1.2 - Related Work Specified Elsewhere 02223 - Excavation and Backfill for Utilities 02641 - Valves 02642 - Valve Enclosures 16100 - Power Distribution and Service

1.3 - Submittals

Submit sufficient descriptive literature to demonstrate compliance with these specifications for the following:

Pressure pipe and fittings

Specialties

Perforated Pipe

1.4 - Single Manufacturer

All pipe of a given type, material, and size shall be the product of a single manufacturer.

1.5 - Applicable Codes

AWWA

ASTM

Uniform Plumbing Code

PART 2 – PRODUCTS

2.1 - Bushings

Where reducing fittings are shown on the drawings, bushings of the same material as the fitting may be approved by the COR, if space is available.

2.2 - Joints Between Dissimilar Materials

Use flanges or couplings manufactured specifically for the types of pipe being joined and having a minimum pressure rating, or pressure class (as applicable) equal to or greater than the lower pressure rating or class of the pipes being joined. If PVC fitting is used to connect PVC pipe to threaded metallic pipe, use PVC male adapter to female metallic fitting.

2.3 - Pressure Pipe and Fittings

Pressure pipe and fittings shall conform to the following, unless otherwise noted on the drawings:

Pipe and Fittings, 3/4” – 4” diameter:

Polyvinyl Chloride: Pipe couplings and fittings shall be schedule 40, manufactured of material conforming to ASTM D 1784, Class 12454B, designated as PVC 1120 in ASTM D 1785. Threaded joints and fittings shall meet Schedule 80 requirements of ASTMD 1785.

Polyethylene (PE): Pipe shall comply with requirements of ANSI/AWWA C901, SDR9, 200 PSI. Joining methods and fittings shall be per approved submittal. Flare, insert, grip joint, compression and fusion type fittings can be employed. If compression fittings are used, they shall be a type with a split clamp. Plastic barb and hose clamp fittings will not be allowed.

Galvanized steel: Pipe shall comply with ASTM A 120, schedule 40, threaded and coupled. Threaded fittings shall comply with ANSI B 16.3.

Pipe and Fittings, 4” and greater diamter:

Polyvinyl chloride: Pipe and fittings shall be elastometic joint or flanged and shall comply with requirements of ANSI/AWWA C900-89. Where SHOWN ON THE DRAWINGS, restrained joints of the MegaLug type or approved equal will be used. Fittings shall comply with the requirements of ANSI/AWWA C110/A21.10-87.

Ductile Iron: Pipe shall comply with the requirments of ANSI AWWA C151/A21.5. Pipe shall be cement-mortar lined, rubber gasketed slip joint. Where SHOWN ON THE DRAWINGS, restrained joints of the MegaLug type or approved equal will be used. Fittings shall comply with the requirements of ANSI/AWWA C110/A21.10-87.

Pipe to be continuosly and permanently marked with the following information: manufacturer's name or trademark, size, schedule and type of pipe, working pressure at 73 degrees F, and NSF (National Sanitary Foundation).

Pipe less than 4-Inch Diameter:

Screw-Joint: Pipe to dimensional requirements of ASTM D 1785 Schedule 40, with joints meeting requirements of 150 psi working pressure, 200 psi hydrostatic test pressure, unless otherwise shown or specified. Pipe couplings when used must be hydrostatically tested as required by ASTM D 2464.

Elastomeric Gasket Joint: Pipe shall be to dimensional requirements of ASTM D 1785, Schedule 40 with joints meeting the requirements of 150 psi working pressure, 200 psi hydrostatic test pressure, unless otherwise shown or specified, or it may be pipe conforming to requirements of ASTM D 2241, elastomeric joint, with the following applications:

Solvent Cement Joint: Pipe to dimensional requirements of ASTM D 1785 or D 2241 with joints meeting the requirements of 150 psi working pressure and 200 psi hydrostatic test pressure. Seals shall be NSF-pw seals meeting ADEQ requirements.

2.4 - Specialties

Saddles – Cast Iron, Steel and Asbestos Cement Pipe: Double strap service saddle with brass or forged steel galvanized straps.

Saddles - Plastic Pipe, 1-inch through 4-inch Two piece polypropylene body which surrounds pipe, with two stainless steel straps and stainless steel reinforcing cap.

Flexible Couplings Steel or cast iron. Rockwell, Dresser, or approved equivalent.

Pipe Supports Cast iron saddle, locknut nipple and reducer to provide vertical adjustment.

Thread Compound and Tape A lead-free, antiseize sealing compound or tape approved for use in joints and threaded parts of potable water systems.

Building Connectors High molecular weight elastomeric plastic compression sealing ring or sleeve coupling with stainless steel clamps and bolts. Fernco or approved equal.

2.5 – Perforated Pipe – 4” – Foundation/Subsurface Drain

SDR-35 PVC Perforated Pipe – Gasketed or solvent weld.

Smoothwall Pipe – High density polyethylene layer around a black polyethylene core, with large perforations, meeting ASTM F810.

Filter Fabric sock – 4” sock or sock to fit O.D. of installed perforated pipe. Sock shall be approved for installation around perforated drain pipe. It shall have characteristics to prevent clogging and to screen out sand and sediment. Sock shall be installed per manufacturer’s instructions.

Landscape Fabric - 4.oz, non-woven polypropylene

Properties: Test Method 4 oz.

a) Grab Tensile (lbs) ASTM D-4632 105

b) Grab Elongation (%) ASTM D-4632 50

c) Puncture Strength (lbs) ASTM D-4833 65

d) Mullen Burst (psi) ASTM D-3786 210

e) Trapezoidal Tear (lbs) ASTM D-4533 45

f) Apparent Opening Size (AOS) ASTM D-4751 70

g) Permittivity (sec-1) ASTM D-4491 2.0

h) Permeability (cm/sec) ASTM D-4491 .22

i) Water Flow Rate (gpm/ft2) ASTM D-4491 145

j) Weight (oz/yd2) ASTM D-3776 4.0

k) Thickness (mils) ASTM D-1777 55

l) U.V. Resistance ASTM D-4355 70

Sand – coarse sand shall be brought commercially. Depth of sand shall be at minimum 6-inches thick.

Rigid Extruded Polystyrene (XPS) – Product shall be installed per manufacturer’s recommendations. An approved type of product recommended for installation is Owens Corning, Foamular 150 Extruded Polystyrene (XPS) Rigid Foam Insulation, or an approved equal.

Masonry Waterproof Coating – 2 coats shall be applied per manufacturer’s recommendations. Use Drylock, or an approved equal. All above grade applications shall be submitted to COR for review and approval on color before application.

Cementious Wedge – This shall be installed as shown on drawing. Submit product information on wedge to COR before ordering for review and approval. Install per manufacturer’s instructions.

¾” Gravel – This shall be a commercial source free from vegetation. Provide source of material to COR for review and approval prior to ordering and/or placement.

2.6 – Magnetic Marking Tape

PIPE FITTINGS AND SPECIALTIES – 02610 – 25

02665-23 Metallic core, plastic marking tape, printed with the words "Caution Buried Electric/Water Line" or similar wording. "Detectatape" by Allen Systems, Inc., Terra-Tape, or approved equal.

PIPE FITTINGS AND SPECIALTIES – 02610 – 26

2.7 Stainless Steel Screen

16-mesh woven wire cloth, type 304 stainless steel standard grade, non-corrodible. This shall be installed at all outlets of drain lines.

2.8 Riprap at daylight drain

Riprap shall consist of hard, dense, durable stone, angular in shape and resistant to weathering. Rounded stone or boulders will not be accepted as riprap material. The stone shall have a specific gravity of at least 2.5. Each piece shall have its greatest dimension not greater than three times its least dimension. Riprap shall be nominal stone size 6” and shall conform to the gradation requirements of CDOT 506.02 6” riprap given in the table below.

50-70 35-50 2-10 .4

OR

Riprap shall consist of hard, dense, durable stone, angular in shape and resistant to weathering. Rounded stone or boulders will not be accepted as riprap material. Individual stones shall have dimensions of 6” to 12”. Source of stone shall be from rocks uncovered on site during construction operations or from an approved off-site source.

PIPE FITTINGS AND SPECIALTIES – 02610 – 26

02665-24

3.1 - Pipe Installation

Handle and install pipe in accordance with manufacturer's Installation Guide and the following:

02665-2

Pipe Placement Place pipe so the full length (except for couplings) bears uniformly on the bedding material. Do not lay pipeline in water.

02665-25

Separation of Water and Sewer Mains A water line shall not infringe upon an area six feet on either side of a sewer line and shall not be below, at the same level as, or less than two feet above the top of the sewer line, unless extra protection is provided. Extra protection shall consist of constructing the sewer line with mechanical joint ductile iron pipe or with slip-joint ductile iron pipe if joint restraint is provided or shall consist of encasing both the water and sewer lines in at least six inches of concrete. Under no circumstances shall water line infringe upon an area within two feet of either side of or two feet below the sewer line.

PIPE FITTINGS AND SPECIALTIES – 02610 – 27

Pipe Protection Keep interior of pipeline and joining surfaces clean. Plug exposed ends of pipe at end of work shifts.

02665-68

Cutting Pipe Make all cuts square and ream. Do not use damaged pipe.

02665-79 Lubricated Joints Use only non-toxic and water-soluble lubricant.

02665-79 Pipe Alignment and Grade Where necessary to avoid existing obstacles, pipelines may be realigned slightly. Slope all lines to drain or as shown.

Do not exceed the manufacturer's recommended maximum deflection. Deflections in excess of these limitations require special bends or a sufficient number of shorter pipe lengths.

3.2 - Valves

See Section 02641 - Valves.

3.3 - Thrust Blocks

02610-25

Place thrust blocks upon undisturbed soil and bear on an area equal to

02665-one-third circumference of fitting (minimum).

3.4 - Anchor Blocks

Place anchor blocks upon undisturbed soil. Place anchor rods to bear firmly and evenly around pipe or fixture being secured.

3.5 – Magnetic Marking Tape

Place metallic core marking tape vertically above all buried waterlines, during backfilling.

3.6 Daylight Drain

3.7 Foundation Drain/Subsurface Drain

Construct foundation drain as SHOWN ON THE DRAWINGS

3.8 - Hydrostatic Testing

PIPE FITTINGS AND SPECIALTIES – 02610 – 28

02665-41 Perform hydrostatic test on all waterlines. Furnish all equipment necessary for tests.

Test as follows:

02665-62 Preparation Do not backfill couplings and fittings before testing. Brace couplings and fittings to prevent movement during testing. Backfill other portions of waterline prior to test so no movement can occur when the line is under pressure.

02665-26 Allow all thrust blocks in test section to cure for 48 hours (minimum) prior to testing.

Flush all pipelines.

02610-26

Furnish and install all temporary supports, blocking and

02665-plugs necessary to run the test. Remove after testing.

All air should be expelled from the pipeline during filling and again before making the pressure test.

Testing Perform test in the presence of the COR as follows:

Test each section at 150 psi (minimum) at the lowest elevation point in the section, for a period of 4 hours.

Maximum allowable overall leakage for a test section is:

02665-27 L = NDP , where

02665- 02665-33

L = Allowable leakage, gph

02665- 02665-75 N = Number of joints in test section D = Nominal diameter of pipe, inches

PIPE FITTINGS AND SPECIALTIES – 02610 – 29

P = Square root of the average test pressure, psig

02665-33

02665-29 Repair any visible leakage at joints and repeat the test.

02665- 02665-29 If overall leakage is above maximum allowable, repair the pipeline and repeat the test.

Continue this procedure until leakage is within the allowable specified.

02665- 02665-29

02665- 02665-46

3.7 - Disinfection of New Waterline

PIPE FITTINGS AND SPECIALTIES – 02610 – 29

Disinfect all newly laid pipelines after hydrostatic testing is completed in the following manner:

Disinfecting Agent Chlorine as a calcium hypochlorite, or sodium hypochlorite solution of known strength.

Disinfecting Solution Strength and Measurement Mix the chemical with the water entering the pipeline to obtain a minimum of 50 mg/l chlorine concentration. The following table can be used to calculate required chlorine based on strength product used:

02665-36

To achieve 50 mg/l (ppm) Per 1000 gallons volume to be disinfected use

02665-4 02665-70

5% chlorine bleach - 1 gal

02665- 02665-27 25% powder - 1 lb.-11 oz.

70% powder - 9.6 oz.

02610-27

Open valves as necessary to allow solution to fill and circulate throughout the entire system. Test all outlets and ends of pipeworks to ensure that the chlorine solution has reached the entire system.

Disinfection Period Retain chlorine solution in the system for a minimum of 24 hours. Test for chlorine residual at a representative number of outlets. If free chlorine residual is below 10 mg/l, repeat disinfection cycle. During the disinfection period, operate all valves and hydrants in the treated segment of pipeline to disinfect the appurtenances.

Final Flushing and Test Following disinfection, flush pipelines with potable water until the chlorine residual is no higher than the existing water supply system or one mg/l. The Engineer will collect four samples; two each at least 24 hours apart: one at the source and one near the end of the new line. An independent laboratory will conduct bacteriological tests on all samples.

02665-28

02665-76 If the initial disinfection fails to achieve potable bacteriological quality, repeat the disinfection procedure until satisfactory results are obtained.

PIPE FITTINGS AND SPECIALTIES – 02610 – 30

02665- 02665-34

PART 4 – MEASUREMENT AND PAYMENT

4.1 – Method of Measurement

Measurement will be made for the actual length of pipe installed, including all fittings, accessories, appurtenances, and connections to existing lines, measured along the centerline of the pipe.

Measurements will not be made until installations are complete, disinfected, pressure tested, and accepted.

Payment will be made at the contract unit price as listed in the “Contract Schedule of Items” for quantities measured and accepted as follows:

END OF SPECIFICATION 02610

03345-

PIPE FITTINGS AND SPECIALTIES – 02610 – 30

02665-

DIVISION 2 SITE WORK

VALVES – 02641-31

VALVES 02641

02641- 02641-28

PART 1 - General

02641-29

1.1 - Description

This section specifies furnishing and installing valves.

1.2 - Related Work Specified Elsewhere

02223 - Excavation and Backfill for Utilities

02641-

02642 - Valve Enclosures

02641-23

1.3 - Working Pressure l50 psi minimum for all valves unless otherwise shown.

02641-24

1.4 - Submittals

Submit sufficient descriptive literature to demonstrate compliance with these specifications for each type and brand of valve being furnished.

PART 2 - Products

2.1 - Curb Stops

02641-27 Curb stops shall be bronze, tee head, with built-in drain and the same size as service line. Furnish with rigid metal liner to use if connecting to plastic pipe. Acceptable curb stops shall be Mueller Co., Model H10204 with drain or equal.

2.2 - Valves

Gate valves shall be used only for line sizes over 4" diameter unless otherwise noted on the plans, and shall conform to the following unless otherwise shown on drawings.

Four Inch and Over AWWA C509, manganese bronze, epoxy coated according to AWWA C550 slip-joint/ring tightened connection, wedge-type-sealing, non-rising stem with operating nut capable of inline maintenance or replacement. Include two valve rods. Acceptable gate valves over 4-inches in diameter shall be Waterous 500 series by American Flow Control (American Darlin) or equal.

02641-30

Under Four Inches Ball Valves shall conform to the following unless otherwise shown on the drawings:

02641-2 02641-32

VALVES – 02641-32

Two piece, forged brass, 150 psi WOG rating, reinforced teflon seats, chrome plated ball with separate packing nut capable of inline maintenance or replacement.

VALVES – 02641-32

Check Valves Bronze body, Bronze disc, 200 psi WOG rating with threaded or flanged end connections. Federal Specification WW-V-51(Type IV, Class A).

2.3 - Valve Rods

Materials - Galvanized iron or steel

02641- 02641-29

2.4 – Service Valves

Valves shall conform to the following unless otherwise SHOWN ON THE DRAWINGS:

Three inches and over: Resilient seated gate valve, AWWA C 509, ductile iron body, NRS, 200 – pound wedge, operating nut. AVK or approved equal.

Under three inches: Two piece, forged brass ball valve, 150 psi, WOG rating, reinforced teflon seats, chrome plated ball with separate packing nut capable of in-line maintenance or replacement.

PART 3 - Execution

02641-31

3.1 - Installation

Install valves according to manufacturer's installation recommendations and the following:

Gate/Ball Valves Install valves on horizontal pipelines with stems vertical and pointing upward.