Attachment_4_SOW_OLYM_Mayfield_Sprinkler_Install.pdf

Solicitation (RFQ) no. 140P8326Q0007 – Attachment 4, Statement of Work (SOW)

Olympic National Park

Design and Install One NFPA 13D Sprinkler System

Mayfield House

SCOPE OF WORK

PART 1 - GENERAL

1.1 DESCRIPTION

A. Design and installation of an automatic dry-pipe National Fire Protection Association

(NFPA) Standard 13D (Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height) fire protection system. System shall include aboveground distribution piping, sprinkler heads, water storage tank with water supply lines (if required) and other related components and appurtenances for coverage of the 2,600 square foot, two story, Type V construction, Mayfield House (See Attachment 3). This building will be used as housing for park staff. The system shall be designed and provided in accordance with NFPA 13, the International Building Code and this scope of work.

1.2 LOCATION

A. The Mayfield house is located at 14 Viewpoint Lane, Amanda Park, WA 98520 on Lake Quinault. Attachment 1 contains a map showing the building’s location within the park.

B. SITE VIST INFO:

a. A Site Visit is REQUIRED.

b. Site Visits will be held on February 17, 2026 from 11am to 3pm PT.

c. Site visits shall be scheduled by contacting the COR no later than 5p PT on

Friday, February 13, 2026 via email at keith_robinson@nps.gov

1.3 SPECIAL PROCEDURES

A. All work including but not limited to architectural, mechanical, electrical and structural shall be performed with extreme care to avoid damage to existing materials to remain or materials to be removed and reinstalled. Where “hot work” (open flame, grinding, welding, brazing, smelting) is required the Contractor shall apply for, and always have on site, a valid National Park Service hot work permit. Hot work permit requests shall be coordinated through the Contracting Officer’s Representative (COR).

B. The authority having jurisdiction (AHJ) is the National Park Service Pacific West Region Structural Fire Management Officer.

1.4 PROJECT CONDITIONS

A. This work will occur in a structure that is not being occupied during this work. Work shall occur between April 01, 2026, and October 31, 2026.

B. Protect finishes of existing floors and walls from damage that may occur during installation.

C. Piping shall be exposed in all areas. Exposed piping shall be steel, painted to match walls and ceiling, as allowed by NFPA 13. Concealed piping may be as allowed by

NFPA 13.

D. If Standpipe is needed, it shall be in the laundry room, laundry room closest, or other approved location.

E. SPECIAL NOTE: The contractor shall verify the required size of supply pipe for this system, whether or not the well pump can supply enough water, and if a water storage tank is needed. The work shall include a cross-connection protection for the potable water system.

1.5 QUALITY ASSURANCE

A. All work shall comply with the applicable requirements of this specification and the codes, standards, and entities identified in section 1.9 of this specification, and applicable state and local codes.

B. Where required by NFPA 13, piping, components, and appurtenances shall be listed.

C. Tanks, pumps, and hangers shall not be required to be listed.

D. Qualifications:

1.6 SYSTEM DESCRIPTION

A. System: Design and install a hydraulically calculated automatic Dry pipe fire protection system and connection to water distribution system for fire protection coverage in accordance with NFPA 13 and required and advisory provisions of NFPA 13 for uniform distribution of water over the design area.

1. Design shall be based on requirements of NFPA 13.

2. Contractor shall include materials, accessories, components, and appurtenances inside and outside the building to provide a system complete and ready to use.

3. Design and install system as required by this scope of work.

4. If required, design system with seismic bracing in accordance with NFPA 13.

5. The system should be separate from the potable water system (sharing of the well, and primary pump is acceptable.) The goal is to not have to treat sprinkler water. If the well is found to provide sufficient flow and a tank is not needed, this requirement shall be waved.

1.7 DEFINITIONS

AHJ: Authority Having Jurisdiction. The Authority Having Jurisdiction is the National Park Service Pacific West Structural Fire Management Officer

ALARM SIGNAL: Signifies a state of emergency requiring immediate action. Pertains to signals from operation of an alarm initiating device.

APPROVED: Acceptable to the Authority Having Jurisdiction.

AUTOMATIC FIRE ALARM SYSTEM: A system providing an emergency function without the necessity of human intervention and activated as a result of a predetermined temperature rise, or increase in level of products of combustion, in accordance with the minimum requirement of NFPA 72.

CO: Contracting Officer

COR: Contracting Officer’s Representative

DWELLING: Any building that contains not more than one or two dwelling units intended to be used, rented, leased, let, or hired out to be occupied or that are occupied for habitation purposes.

DWELLING UNIT: One or more rooms arranged for the use of one or more individuals living together, as in a single housekeeping unit, that normally have cooking, living, sanitary, and sleeping facilities.

FIRE PROTECTION SPRINKLER CONTRACTOR: A person or company engaged in the planning, sale, installation, repair, alteration, addition, maintenance, or inspection of fire protection sprinkler systems or water spray systems.

WATER-BASED FIRE SUPPRESSION SYSTEM (FIRE SPRINKLER): A system of overhead and underground piping to protect the interior or exterior of a building or structure from fire where the primary extinguishing agent is water.

FLOW: The flow rate of the water from the source under flow conditions.

GRADE: Lowest point of elevation of the finished surface of ground, paving, or sidewalk with the area between the building and property line.

HAZARDOUS AREA/ROOM: An area in a structure of building used for the process or storage that involves highly combustible, flammable, or explosive products or other material which may present a potential danger to life, health, property through fire, explosion, etc.

LISTED: Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.

MULTIPURPOSE PIPING SYTEM: A piping system within a residential occupancy intended to serve both domestic and fire protection needs.

NICET: National Institute for Certification in Engineering Technologies

NPS: National Park Service

PRE-ENGINEERED SYSTEM: A packaged sprinkler system including all components connected to the water supply and designed to be installed according to pretested limitation

PUMP: A mechanical device that transfers or raises, or transfers and raises, the pressure of a fluid (water).

RESIDENTIAL OCCUPANCY: Residential occupancies are as follows:

Apartment buildings Lodging and rooming houses Hotels, motels, and dormitories.

RESIDUAL PRESSURE: The pressure available from the source under flow conditions.

STATIC PRESSURE: The pressure available from the source when no water is flowing to the system.

SUPERVISORY SIGNAL: Indicates abnormal status or need for action regarding fire suppression or other protective system, such as a control valve supervisory/tamper switch.

TROUBLE SIGNAL: Indicates that a fault, such as an open circuit or ground, has occurred in indicating appliance circuit, initiating device circuit, or internal to FACP.

WATERFLOW ALARM DEVICE: A mechanical device mounted on the sprinkler pipe that has a paddle internal to the sprinkler pipe to monitor the water for flow. This device is typically monitored by the building fire alarm system.

1.8 SYSTEM REQUIREMENTS

A. The Contractor shall provide an automatic dry-pipe fire protection system.

B. Sprinkler System:

1. Contractor shall design and install a hydraulically calculated dry-pipe fire protection system. The system shall provide the minimum coverage mandated by NFPA 13R and NFPA 101. The contractor shall connect the system to the existing water distribution system. Connection to the water distribution system shall comply with NFPA 13 and NFPA 24.

2. If sprinkler riser is required, the riser main drain and inspector’s test valve discharge shall be routed to the exterior of the building. The inspector’s test valve shall be terminated with a smooth-bore, corrosion-resistant outlet. The inspector’s test discharge shall simulate a flow equivalent to one sprinkler. Contractor shall provide a splash block or rip-rap below the discharge outlet of all drain outlets to prevent landscape erosion.

3. Sprinkler system discharge design criteria shall be a minimum as specified in

NFPA 13.

4. Where more than 20 heads are required the Contractor shall provide electrical supervision of the sprinkler system, in accordance with NFPA 13, NFPA 72, and

NFPA 101.

5. In areas subject to freezing, care should be taken to cover sprinkler piping completely in unheated attic spaces with insulation. Installation should follow the guidelines of the insulation manufacturer.

6. Where system piping is located in areas not maintained above 40°F (4°C), the pipe shall be protected against freezing by use of one of the following methods, as approved by the AHJ/COR:

Dry pipe system Antifreeze system Listed standard dry-pendent or dry-sidewall sprinkler heads extended from pipe in heated areas into unheated areas not intended for living purposes

7. Contractor shall provide and install a spare sprinkler box, with applicable sprinkler wrench, near the riser. The box shall contain six (6) spare sprinkler heads of all head types used in the system.

8. Contractor shall install a sprinkler water flow switch. Water flow switch activation shall trigger a local alarm at the premises within 5 minutes of the beginning of water flow.

9. Sprinkler system design shall include materials, accessories, and equipment inside and outside the building, to include all fittings, valves, sprinkler heads, specialty items, and appurtenances required for a complete and operable water-based fire suppression system.

10. Where required by the COR the Contractor shall paint all interior exposed ferrous metal piping and ferrous metal pipe supports provided in tenant spaces with one coat primer and two coats of corrosion resistant exterior enamel. Finish paint color shall match surrounding surfaces. Paint color shall be approved by the COR.

11. Contractor shall provide NFPA 13 compliant labels and signs for all system control valves and drains.

12. The Contractor shall attach an NFPA 13 compliant hydraulic design plate to the system riser.

13. Work shall include installation of an alarm panel capable of providing line dial up/monitoring of alarms. Suppression system alarms shall include flow and tamper switch, and other code requirements.

A. Vane type water flow indicator shall be provided in system main.

B. Activation of any water flow switch shall cause an audible alarm on premises within 5 minutes of the flow of water across said device and shall continue until the flow of water is terminated.

C. Switches shall be set to signal any flow of water that equals or exceeds the discharge from any one sprinkler within 30-40 seconds.

Waterflow switch mechanisms shall incorporate an instantly recycling pneumatic adjustable retard element, adjustable up to two minutes.

D. The panel shall be capable of transmitting a signal to an approved central/remote station within 90 seconds of water flow or supervisory switch activation.

E. Valve Supervisory Switches: Where required provide sprinkler control valves with approved circuit supervisory (tamper) switches. The supervisory signal shall be obtained during the first two revolutions of the hand wheel or operating crank. The switch shall not interfere with the operation of the valve nor obstruct the view of its indicator. Devices shall be compatible with the fire alarm control panel or sprinkler monitoring panel, where existing or proposed, and the requirements of NFPA 72. All switches shall be suitable for installation as end-of-line devices.

14. Work Shall also include installation of heat/smoke detectors. Detectors shall be NFPA compliant, hardwired and connected to alarm panel.

C. Water Supply:

1. The following water supply sources shall be considered to be acceptable:

A connection to a reliable waterworks system with or without an automatically operated pump

An elevated tank A pressure tank designed to American Society of Mechanical Engineers

(ASME) standards for a pressure vessel with a reliable pressure source A stored water source with an automatically operated pump

2. Where stored water is used the tank and appurtenances shall comply with NFPA 22.

3. Where stored water is used as the sole source of supply, the minimum quantity shall equal the water demand rate times 10 minutes.

4. Where stored water is used as the sole source of supply, the minimum quantity shall be permitted to equal the two-sprinkler water demand rate times 7 minutes where dwelling units meet the following criteria:

One story in height Less than 2000 ft2 (186 m2) in area

D. Multipurpose Piping System:

1. A multipurpose piping system, serving both sprinkler and domestic needs, shall be considered to be acceptable where the following conditions are met:

In common water supply connections serving more than one dwelling unit, 5 gpm shall be added to the sprinkler system demand to determine the size of common piping and the size of the total water supply requirements where no provision is made to prevent flow into the domestic water system upon operation of a sprinkler.

Smoke detectors are provided in accordance with NFPA 72 All piping in the system supplying sprinkler heads is listed and conforms to the piping specifications of this scope of work and NFPA 13R/

NFPA13D.

Piping connected to the system that supplies only plumbing fixtures complies with local plumbing and health authority requirements but is not required to be listed.

Permitted by the local plumbing or health authority.

A sign is affixed adjacent to the main shutoff valve that states in minimum

¼-inch letters, “Warning, the water system for this home supplies a fire sprinkler system that depends on certain flows and pressures being available to fight a fire. Devices that restrict the flow or decrease the pressure such as water softeners shall not be added to this system without a review of the fire sprinkler system by a fire protection specialist. Do not remove this sign.”

Devices that restrict the flow or decrease the pressure, such as water treatment and filtration equipment, shall not be added to the system. Where water treatment and filtration equipment are installed, a listed automatic flow sensing bypass shall be provided in the supply piping that directs all water directly to the system.

1.9 REFERENCES

A. National Fire Protection Association (NFPA)

1. NFPA 13 (Standard for the Installation of Sprinkler Systems – 2007 Edition)

2. NFPA 13R/ 13D (Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height – 2007 Edition)

3. NFPA 22 (Standard for Water Tanks for Private Fire Protection - 2003 Edition)

4. NFPA 24 (Standard for the Installation of Private Fire Service Mains and Their Appurtenance - 2007 Edition)

5. NFPA 25 (Inspection, Testing and Maintenance of Water-Based Fire Protection Systems - 2007 Edition)

6. NFPA 70 (National Electrical Code - 2008 Edition)

7. NFPA 72 (National Fire Alarm Code - 2007 Edition)

8. NFPA 101 (Life Safety Code - 2006 Edition)

9. NFPA 170 (Standard for Fire Safety and Emergency Symbols – 2006 Edition)

B. Underwriters Laboratories, Inc. (UL)

1. UL-199 Automatic Sprinklers for Fire-Protection Service

2. UL-1468 Direct Acting Pressure Reducing and Pressure Restricting Valves

3. UL 1626, Proposed Standard for Residential Automatic Sprinklers for Fire Protection Service

C. Factory Mutual System (FM)

1. FM Approval Guide - current edition D. American Welding Society (AWS)

1. AWS D10.9 - Specification for Qualification of Welding Procedures and Welders for Piping and Tubing E. International Code Council

1. International Building Code – 2009 edition

2. International Fire Code – 2006 edition

1.10 QUALITY ASSURANCE

A. Qualifications:

1. Contractor shall be certified by the material/equipment manufacturer as trained in, and as knowledgeable of, the manufacturer's standard practice and procedure relating to installation of sprinkler systems. The Contractor shall be certified and licensed by the state and local jurisdictions, as applicable.

2. Contractor shall be a firm specializing in performing work of this section with a minimum of five years experience and must be regularly engaged in the installation of water-based fire suppression systems.

3. Contractor shall have successfully installed automatic water-based fire suppression systems of the same type and design as specified herein. The Contractor shall provide evidence of such qualifications in the Relevant Experience fill-in sheets provided in Attachment 5, “Forms to Return with Quote”.

The data shall include:

a) Names

b) Locations of at least three installations where the Contractor has installed such systems.

c) The Contractor shall indicate the type and design of each system and certify each system has performed satisfactorily in the manner intended for a period of not less than 12 months.

d) The Contractor shall submit a copy of a valid state sprinkler contractor certificate and license, in accordance with Washington State Law, https://app.leg.wa.gov/wac/default.aspx?cite=212-80- 018.

B. Personnel:

1. Design: All fire sprinkler plans submittals, to include shop drawings and working plans, shall be developed in accordance with codes and standards identified in this specification by a Fire Protection Engineer or a NICET Level 3 Automatic Sprinkler System Layout Technician.

https://app.leg.wa.gov/wac/default.aspx?cite=212-80-018 https://app.leg.wa.gov/wac/default.aspx?cite=212-80-018

2. Installation Supervision: The sprinkler system installation supervisor shall be qualified and experienced in the design and installation requirements of sprinkler systems in accordance with NFPA 13 and state requirements.

3. Contractor shall provide workers normally employed in the field and as otherwise specified in the specification and NFPA 13.

D. Other Requirements:

1. The design, equipment, materials, installation, and workmanship shall be in strict accordance with the required and advisory provisions of this specification and NFPA 13 and other applicable NFPA codes.

2. The advisory provisions (Annexes) of the NFPA publications referred to herein shall be considered to be mandatory, as though the word "shall" has been substituted for "should" wherever it appears. If there are any conflicts between these specifications and the referenced standards and publications, the most stringent requirement shall apply.

3. The Contractor shall coordinate with the NPS and all trades and contractors on the site to ensure that the final installation of the water-based fire suppression system meets the minimum installation requirements of NFPA 13.

1.11 SYSTEM COMPONENTS COMPLIANCE

A. Performance requirements for the fire protection system will be determined by a review of construction submittals and by field inspection. Compliance review shall be performed by the AHJ/COR. Compliance review is to verify that the Design/Build Contractor is providing systems, products, and/or materials that will satisfy the stated criteria. This review shall not relieve the design/build Contractor from responsibility for any errors or omissions, nor from responsibility for complying with the requirements of the project contract, this specification, or applicable NFPA codes and standards.

1.12 HYDRAULIC SYSTEM DESIGN PARAMETERS

A. Hazard Classifications

1. The system occupancy classification shall be light hazard (Residential).

B. Hydraulic Design Requirements:

1. Sprinkler Discharge Area:

The discharge area for each system shall be the hydraulically most remote area as defined in NFPA 13 and as stated for light hazard occupancy.

2. Friction Losses:

Losses in pipe shall be calculated in accordance with the Hazen-Williams formula with "C" values in accordance with NFPA 13.

C. Location and spacing of sprinkler heads in relation to the ceiling, light fixtures, ventilation equipment, storage, ceiling fans, and soffits, shall not exceed that permitted by

NFPA 13 and the listing of each sprinkler. The spacing of sprinkler heads on the branch lines for open areas shall be uniform.

D. Drain pipes shall be 2 inch and valves shall be provided on the system to allow drainage. The system shall drain to the maximum extent possible through the main drain valve. Discharge from the drain pipe shall be to the building exterior, directed away from the building. The discharge from the drain pipe shall be piped to within 8 inches of grade.

Splash blocks under the drain outlet shall be provided to prevent soil erosion. Discharge to sump pumps, floor drains, sinks and waste lines, etc. are not permitted.

1.13 PIPE SCHEDULE SYSTEM DESIGN PARAMETERS

A. Pipe schedule system shall meet the minimum flow and pressure requirements of NFPA

13.

B. The number of sprinkler heads on each given pipe size shall meet NFPA 13 requirements.

C. Extra hazard occupancies shall be hydraulically calculated.

1.14 SUBMITTALS

A. The AHJ shall review and "accept/reject" or take other appropriate action on the Contractor's submittals including shop drawings, samples, documentation and as-built drawings. This review is to verify conformance to project specifications and design concepts expressed in the contract documents. The AHJ is allotted 20 working days to review and approve/reject each submittal.

B. Shop Drawings:

1. Contractor shall prepare and submit a minimum of one digital and one complete hard copy set of detailed electronically generated shop drawings indicating the proposed layout of equipment, mains, risers, hangers, pipes and sprinkler heads.

2. Drawings shall be drawn to scale, not less than 1/8-inch equals 1-foot, on sheets not smaller than 24 inches x 36 inches, in accordance with all requirements for "Working Drawings (Plans)" as specified in NFPA 13.

3. Drawings shall comply with Chapter 22 (Plans and Calculations) of NFPA 13 and contain all applicable information found referenced in Chapter 22 of NFPA 13.

4. Drawings shall be stamped/sealed by a fire protection engineer or a certified NICET Level III Automatic Sprinkler Layout Technician.

5. Drawings shall show hydraulic reference points with hydraulically most remote areas clearly shown, and proof by example that area shown is in fact the hydraulically most remote.

C. Design Data:

1. Contractor shall submit for approval to the COR calculations, and other information for the dry pipe sprinkler system, stamped/sealed and signed by professional fire protection engineer prior to beginning any work.

D. Product Data

1. Submit one complete set of descriptive data (manufacturer’s cut sheets) marked-up to show the specific model, type and size of each item proposed. Full descriptive data shall be submitted for all components essential to proper installation, including, but not limited to: sprinkler heads, pipe, fittings, gate valves, butterfly valves, check valves, backflow devices, hangers, flow switches, tamper switches, materials and other associated equipment.

2. Prepare and submit a minimum of three (3) complete sets of hydraulic calculations.

E. Project Record Documents

1. Contractor shall prepare, daily, red-lined shop drawings to record as-built conditions. Submit completed red-line drawings to the Contracting Officer and the AHJ at project completion.

2. Prepare and submit three (3) sets of record shop drawings, product data, and hydraulic calculations reflecting final as-built conditions at completion of project, but before final acceptance of the work. These documents shall be prepared in accordance with the requirements for the initial submittal. Freehand sketches or mark-up documents are not acceptable. Record drawings shall be on reproducible sepia.

F. Operations and Maintenance Data:

1. Furnish three (3) sets of instruction manuals containing complete operation and maintenance instructions for the specific make and model of check valves, control valves, waterflow switches, valve supervisory switches, control panels, and other components supplied. Include maintenance data relative to components of the system, servicing requirements, inspection data, replacement part numbers and availability, and location and numbers of the service depot.

G. Contractor’s Material and Test Certificates

1. Upon completion of required testing the contractor shall submit completed and signed material and test certificates for aboveground, underground piping and backflow prevention devices certifying system meets or exceeds the specified requirements. The Contractor shall use the following National Park Service forms:

Underground Piping Acceptance Test Form (Form AS-4, Attachment 4) Aboveground Piping Acceptance Test Form (Form AS-5, Attachment 5) Backflow Prevention Assembly Test Form (Form BF-1, Attachment 6)

PART 2 - PRODUCTS

2.1 GENERAL

A. All equipment supplied under this specification shall be new and, where required by the NFPA or this specification, shall be UL-listed or FM-approved for fire protection systems and provided as intended by the listing.

2.2 ABOVEGROUND PIPING

A. Pipe shall be per NFPA 13. Schedule 10 pipe or smaller will not be approved. All steel pipe must be Schedule 40.

B. Piping joined by threaded methods shall be Schedule 40 for sizes less than 8-inch pipe.

C. Pipe shall be joined by screwed, rolled-groove, welded or flanged methods.

D. Fittings shall be cast iron, or malleable iron, or steel conforming to NFPA 13 requirements.

2.3 SPRINKLER HEADS

A. Quick-response extended coverage type sprinkler heads may be used as approved by the AHJ.

B. Sprinkler heads in areas without finished ceilings shall be upright or pendent, polished brass, unless otherwise specified. Sprinkler heads shall be ordinary temperature rated except where a higher temperature rating is necessary for individual sprinkler head locations, as approved by the AHJ.

C. Sprinkler heads shall be U.L. listed for the intended application.

D. Sprinkler heads subject to mechanical damage shall be properly protected with listed guards, in accordance with the requirements of NFPA 13.

E. Corrosion resistant sprinkler heads shall be provided in locations where chemicals, moisture, or other corrosive vapors sufficient to cause corrosion of such devices exists.

F. Sprinkler heads shall not be painted in the field. The Contractor shall ensure proper protection is provided to prevent the painting of sprinkler heads by other trades and contractors. Any sprinkler heads that have been painted shall be replaced by the Contractor with new listed sprinkler heads of the same characteristics, including orifice size, thermal response, and water distribution.

2.4 SPRINKLER MONITORING

A. Vane type water flow indicators shall be provided in each system main.

B. If required by NFPA 13D, activation of any water flow switch shall cause an audible alarm on premises within 5 minutes of the flow of water across said device and shall continue until the flow of water is terminated.

C. If required by NFPA 13D, switches shall be set to signal any flow of water that equals or exceeds the discharge from any one sprinkler within 30-40 seconds. Waterflow switch mechanisms shall incorporate an instantly recycling pneumatic adjustable retard element, adjustable up to two minutes.

D. Where sprinkler monitoring panels or fire alarm control panels monitor sprinkler system components the panel shall be capable of transmitting a signal to an approved central/remote station within 90 seconds of water flow or supervisory switch activation.

E. Valve Supervisory Switches: Where required provide sprinkler control valves with approved circuit supervisory (tamper) switches. The supervisory signal shall be obtained during the first two revolutions of the hand wheel or operating crank. The switch shall not interfere with the operation of the valve nor obstruct the view of its indicator. Devices shall be compatible with the fire alarm control panel or sprinkler monitoring panel, where existing or proposed, and the requirements of NFPA 72. All switches shall be suitable for installation as end-of-line devices.

F. Pressure Gauges: Pressure gauges shall have a metal corrosion-resistant case, liquid filled, flat glass window, 3½-inch diameter with background dial with black markings, and a 0-300 pounds per square inch gauge range. Gauge accuracy shall be 3-2-3 percent of full range. A shut-off valve shall be provided with each gauge connection.

G. Check Valve: Provide a listed/approved swing-type check valve in the sprinkler system riser assembly prior to any branch lines. A backflow prevention device listed for water-based fire protection systems shall be allowed, as approved by the AHJ.

J. Backflow Preventer: Provide double detector check valve assembly backflow preventer with gate valves. Each check valve shall have a drain. Backflow prevention assemblies shall have current "Certificate of Approval” from the Foundation for Cross-Connection Control and Hydraulic Research. Means shall be provided downstream of all backflow prevention valves for flow tests at system demand.

2.5 VALVES

A. Gate Valves

1. Up to and including 2 inches: Bronze body, bronze trim, rising stem, handwheel, inside screw, single wedge or disc.

2. Over 2 inches: Iron body, bronze trim, rising stem, handwheel, OS&Y, single wedge, resilient-seated.

B. Globe Valves

1. Up to and including 2 inches: Bronze body, bronze trim, rising stem and handwheel, inside screw.

2. Over 2 inches: Iron body, bronze trim, rising stem, handwheel, OS&Y, plug type disc, renewable seat and disc.

C. Ball Valves

1. Up to and including 2 inches: Bronze one-piece body, stainless steel ball, Teflon seats and stuffing box ring, lever handle and balancing stops. Over 2 inches: Cast steel body, chrome plated steel ball, Teflon seat and stuffing box seals, lever handle, flanged.

D. Butterfly Valves

1. Butterfly valves shall be listed for use on fire protection systems and shall be bronze body, stainless steel disc, and resilient replaceable seat, threaded ends, extended neck, handwheel and gear drive and integral indicating device, and built-in tamper-proof switch for signal transmission to the fire alarm system.

2. Cast or ductile iron body, chrome plated ductile iron disc, resilient replaceable EPDM seat, extended neck, handwheel and gear drive and integral indicating device and built-in tamper proof switch for signal transmission to the fire alarm system.

2.6 PIPE HANGERS AND SUPPORT

A. Pipe hangers, braces and supports shall be in accordance with NFPA 13.

B. Hangers for support of piping and equipment shall be types approved for fire protection service. Supports including all threaded rods shall not interfere with access to operating areas, obstruct electrical junction boxes, or impact the reliability and operations of facility equipment and systems. In areas subject to earthquakes additional seismic bracing will be required on all hangers and provided according to NFPA 13 and the IBC.

2.7 PIPE SLEEVES

A. A steel sleeve of adequate size to allow an approximate 1-in. (25-mm) clearance between the sleeve and the pipe or raceway shall be provided for each pipe or raceway.

The space between the sleeve and penetrating item (annular space) shall be filled as required to meet the fire rating. Joint reinforcement shall be provided in the horizontal mortar joints immediately above and below sleeves in concrete masonry walls, and all hollow spaces of concrete masonry walls immediately adjacent to the sleeve shall be filled with concrete, mortar, or grout.

B. Systems requiring galvanized pipe: For sleeves in masonry and concrete walls, floors and roofs provide, Schedule 40 or standard weight, hot-dip galvanized steel pipe sleeves.

C. Systems requiring galvanized pipe: For sleeves in partitions, and other than masonry and concrete walls, floors and roofs provide hot-dip galvanized steel sheet having a nominal weight of not less than 0.90 pounds per square foot.

2.8 PIPE ESCUTCHEON PLATES

A. Provide approved one piece or split hinge type metal plates for piping passing through floors, walls, and ceilings in exposed areas. Plates shall be painted to match the pipes they are secured to. Securely anchor plates in place with set screws or other approved means.

2.9 INSPECTOR’S TEST CONNECTION

A. Provide test connection piping to a location where the discharge will be readily visible or provide a test connection with sight glass assembly. The test piping shall discharge to exterior grade and onto a splash block so as to prevent damage to the structure or landscape.

B. System, main drain or sectional drains, connections piping shall be routed to a location where the discharge will be readily visible. The test piping shall discharge to exterior grade and onto a splash block so as to prevent damage to the structure or landscape.

2.10 RISER ROOM

A. A room which supports the sprinkler riser that shall not be subject to temperatures below 40 degrees Fahrenheit. Where these conditions may exist, provisions shall be made to provide NFPA 13 freeze protection for riser piping.

PART 3 - EXECUTION

3.1 PREPARATION

A. Coordinate work of this section with the COR.

B. The Contractor shall take necessary measures to prevent damage to the facilities and equipment and shall take any necessary measures to prevent accidental water discharge at all times. All collateral damage resulting from the work and testing under this section, whether intentional or not, shall be repaired by the contractor at no cost to the government.

C. At any time “Hotwork” is being performed by the contractor a valid NPS Hot Work permit shall be on site.

D. The Contractor is responsible for the safe work place environment for their employees and contractors. The contractor shall comply with the OSHA standards.

F. Ream pipe and tube ends to remove all burrs.

G. All excess oil, dirt, pipe joint compound, rust, and mill scale shall be removed from piping and equipment. All dirt, debris and excess cutting oil shall be removed from the interior of all piping and equipment before it is erected.

H. Cap off open newly provided pipe at the end of each work day to prevent insects, rodents or other potential obstructions from entering the pipe.

I. Storage of equipment, tools, and materials is the sole responsibility of the Contractor.

Arrangements shall be made with the COR prior to work.

J. Storage of material shall be stacked in an orderly fashion and meet the satisfaction of the COR. The storage shall be safeguarded to prevent accidents from occurring around the stored material.

3.2 DELIVERY, STORAGE AND HANDLING OF MATERIALS

A. Deliver and store valves in shipping containers, with labeling in place.

B. It is the responsibility of the contractor to maintain all parts in a safe, secure place until installation.

C. The storage location must meet the approval of the COR.

D. Provide temporary protective coating on cast iron and steel valves during the storage period.

E. All stored pipe shall be supported off the ground at all times.

3.3 GUARANTEE

A. The Contractor, in addition to other warranties or guarantees required by the contract documents, shall guarantee workmanship on all piping, devices, and related materials for a period of one year from the date of the Contracting Officer’s final acceptance of the work.

All defects shall be promptly corrected at no cost to the Government.

B. The Contractor is responsible for providing a system that has been coordinated with the contract documents and approved by the Contracting Officer.

3.4 EXTRA MATERIALS

A. Provide spare sprinkler heads under provisions of NFPA 13. The quantity of each type of extra sprinkler head shall be as specified in NFPA 13, six (6) spare in total.

B. Provide metal cabinets for storage of spare sprinkler heads and sprinkler wrenches.

Cabinets shall be of sufficient size to permit six (6) spare sprinkler heads to fit upright and be reasonably secured within the cabinets.

D. Cabinets shall be wall mounted adjacent to the sprinkler system riser, or otherwise approved location.

E. Provide two (2) of each type of key and/or special tool required for system use and maintenance, include access tools for waterflow and tamper switches.

3.5 INSTALLATION

A. All work shall be provided in a professional manner (parallel/perpendicular to walls and columns) in accordance with NFPA and NPS standards and other applicable standards referenced by this document.

B. Install all equipment in accordance with manufacturer’s instructions.

C. Use proper lubricant on ends of piping or gaskets where required by pipe fitting or coupling manufacturer. The manufacturer’s recommended lubricant shall be used.

D. Where required by manufacturer, properly torque bolts to manufacturer’s specifications using a torque wrench.

E. Prevent electrolysis by insulating connection between pipe, fittings, hangers or dissimilar metal against direct contact. Use dielectric insulating flanges and units.

F. Support all sprinkler piping, risers, etc., as specified in NFPA 13 and 24. Provide riser clamps above floor at each floor penetration.

G. Provide minimum 1¼-inch diameter, 4-inch long nipples and caps at ends of all cross mains for flushing connections.

H. Sprinkler installation shall be coordinated with the installed mechanical and electrical panels, sprinkler heads shall be located as close to the center of the ceiling panel in both directions as possible.

I. The Contractor shall install the piping and equipment in accordance with approved shop drawings.

J. The Contractor shall install seismic bracing in accordance with NFPA 13.

K. The Contractor shall install proper UL-listed firestopping materials as required for any penetrations through fire rated construction.

L. Tapping or drilling of load-bearing structural members is not permitted. Attachments may be made to steel or concrete structures with approved clamps and hangers designed in accordance with NFPA 13 and local standards.

M. Provide pipe sleeves where piping passes through walls, floors, roofs, and partitions.

Grout sleeves in proper position and location during construction. Provide sleeves of sufficient length to pass through entire thickness of walls, floors, roofs, and partitions.

Provide clearance between exterior of piping and interior of sleeve in accordance with NFPA 13. Firmly pack space with noncombustible insulation and caulk at both ends of the sleeve with plastic waterproof cement, which will dry to a firm but pliable mass, or provide a flexible seal. Extend sleeves in floor slabs 3 inches above the finished floor.

N. Install valves with stems upright or horizontal as required. Valve stems shall not be inverted.

O. Provisions shall be made by the Contractor to protect piping, sprinkler heads and other components of the sprinkler systems from extreme climatic conditions including freezing and high temperature (under 40° F, or over 100° F).

P. All control valves shall have all-weather signs identifying their function per NFPA 13 requirements.

Q. Caution signs shall be attached to all valves controlling sprinkler heads. The caution sign shall be worded as follows:

This valve controls fire protection equipment.

Do not close until after fire has been extinguished.

Use auxiliary valves when necessary to shut off supply to auxiliary Equipment

R. Where water supply control valves are required to be electronically monitored a sign shall be installed at the valve which reads:

Caution: Automatic alarm will be sounded if this valve is closed

3.6 TESTING

A. Inspection test procedures shall be submitted to AHJ for approval prior to performance of test.

B. Hydrostatically test all piping at system working pressure.

C. Where a fire department connection is required all systems piping and attached appurtenances, to include the piping between the exterior fire department connection and the check valve in the fire department connection inlet pipe shall be hydrostatically tested at 200 psi. The pressure shall be maintained for a period of two (2) continuous hours.

D. The Contractor shall make provisions for the proper disposal of water used for flushing or testing. Diversion of flush and test water onto the ground or into drains or waterways is not approved.

E. Leaks in piping shall be immediately corrected. On threaded piping, tighten joints. If necessary, dismantle and replace section. Caulking, peening, or stop-leak compounds will not be permitted.

F. The backflow prevention assembly shall be forward flow tested to ensure proper operation. The minimum flow rate shall be the system demand, including hose stream allowance where applicable.

G. All operating parts, including electrical equipment, shall be fully tested to ensure their proper operation. All control valves shall be fully closed and opened under full system pressure.

H. All sprinkler alarm and supervisory devices shall be fully tested by the Contractor to ensure their proper operation and that they report appropriate signals to the fire alarm or sprinkler monitoring panel.

I. All gaps left by holes and or penetrations created for the installation of fire sprinkler piping, appurtenances, or wiring shall be patched or backfilled will an approved fire stop material or construction.

J. The Contractor shall hydraulically and mechanically pre-test all provided components in accordance with NFPA 13 acceptance test protocols to ensure proper installation and operations prior to scheduling the AHJ system acceptance test.

K. All acceptance testing performed by the Contractor shall be conducted in the presence of the AHJ or his designated representative, and other representatives at the option of the

NPS.

1. SPECIAL NOTE: All persons concerned shall be notified two (2) weeks in advance of the tests in order to arrange attendance at the tests.

L. The Contractor shall perform supplemental tests and shall render additional services in connection with the sprinkler system, as directed. The cost, if any, will be negotiated prior to the test. The effect of additional tests, if any, on the delivery schedule shall be determined prior to undertaking the test.

3.7 PATCHING AND PAINTING (FINISH WORK)

A. Patching:

1. Replacement or repair materials shall match those of the existing adjacent surfaces.

2. Finished surfaces shall be repaired to match existing finished surfaces.

3. All surfaces, walls, floors and ceilings shall be repaired to maintain their integrity and fire resistance.

4. Replace fireproofing material removed from structural steel with new fireproofing material of equal or better fire rating. New fireproofing material shall be acceptable to the COR.

B. Painting:

1. All new paint colors and textures shall match those of the existing adjacent areas.

2. Spot painting will be acceptable only if the painting matches the existing paint, to the satisfaction of the COR. If the spot painting does not match, the Contractor shall repaint the entire contiguous surface.

4. Three coats are required if a stand-alone primer is used. One coat of primer and two coats of finish paint.

5. Two coats are acceptable with the use of a manufactured primer/paint mixture (e.g. – BEHR Paint Company line of primer/paints)

C. Paint Preparation:

1. The Contractor shall thoroughly mix all painting materials to ensure uniformity of color, complete dispersion of pigment and uniform composition.

2. Metal - primer required by manufacturer for proper adhesion.

D. The Contractor shall not thin materials, unless necessary for proper application and when finish paint is used for body and prime coats. Materials and the quantities used for thinning shall be in accordance with the manufacturer's printed instructions.

E. The Contractor shall remove all paint skins, then strain paint through commercial paint strainer to remove all lumps and other particles.

F. Two-component and two-part paint and those requiring additives shall be mixed in such a manner as to be uniformly blended in accordance with the manufacturer's printed instructions.

G. The Contractor shall use color pigment recommended by the paint manufacturer for tinting required to produce exact shades specified.

3.8 PATCHING AND PAINTING (CLEAN-UP)

A. Upon completion, the Contractor shall clean paint from all hardware, glass and other surfaces and items not required to be painted.

B. Before final inspection, any work that has become damaged or discolored shall be touched up or refinished by the Contractor in a manner to produce solid even color and finish texture, free from defects.

C. The Contractor shall be responsible for replacing and/or repairing any and all areas damaged during the execution of this work.

C. The areas of cutting, coring, demolition, debris removal, and painting; the inside and outside of the building shall be left in a safe and clean condition suitable for the installation of new work.

PART 4 - SAFETY

4.1 SAFETY REQUIREMENTS

A. General: The Contractor must comply with the following safety requirements:

1. First Aid Equipment: Provide adequate first aid equipment for all contract employees for the hazards associated with the types of ongoing construction work at the site.

2. First Aid Training: Provide adequate training to all Contractor personnel to ensure prompt and efficient application of first aid.

3. Personal Protective Equipment (PPE): Provide personal protective equipment

(PPE) that meets applicable OSHA and ANSI standards for all contract employees.

4. Hazardous Materials: Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury. Store hazardous materials in accordance with manufacturers and OSHA recommendations. Maintain MSDS onsite for each chemical used on the jobsite. Immediately report all spills of hazardous materials to the contracting officer. All Hazardous materials shall be properly labeled.

5. Submit a Site-Specific Safety Plan (SSSP), before the beginning of construction written, to comply with OSHA and project requirements (generic plan is not acceptable).

a. Name and qualifications of supervisor responsible to carry out the program

b. Signature page with names and titles of Plan Preparer, Safety Officer, Project Manager, and NPS Point of Contact

c. Provide a site map identifying key work areas, staging areas, emergency access points, and evacuation routes.

d. Include an Emergency Response Plan to include evacuation procedures, rally points, and responses for injuries, weather events (have a Severe Weather Contingency Plan), and hazardous material exposure.

6. Complete Job Hazard Analysis (JHAs) for high-risk tasks, including excavation, concrete work, and utility connections.

7. Ensure all personnel are properly trained in hazard communication, heavy equipment operation, fall protection and tasks specific to this project.

8. Ensure a competent person is overseeing high risk tasks.

9. Compliance with NFPA 2421 for fire prevention on construction sites is required.

10. Emergency Contacts: Post telephone numbers and reporting instructions for ambulance, hospital, fire department, police, and park dispatch in conspicuous locations at the site.

11. Emergency Medical & Accident Reporting: In the event of an emergency / medical incident, the Contractor shall Dial 911 as needed. The Contractor shall also contact Park Dispatch at: 360-565-3115 for any medical emergency, traffic accident, or personal injury occurring within the Park. A formal accident investigation and documentation shall be reported in a incident report (e.g., CM-

22) within 7 days.

12. Include sub-contractors in all above safety items.

PART 5 – EXCAVATION & FILL

5.1 DESCRIPTION

1. Section Includes: Perform all excavation, dewatering, filling, backfilling, compaction and grading necessary or required for the construction of the work as covered by these specifications and indicated on the drawings. The excavation shall include, without classification, the removal and disposal of all materials of whatever nature encountered, including water and all other obstructions that would interfere with the proper construction and completion of the required work.

5.2 REFERENCES

1. American Society for Testing and Materials (ASTM).

2. Washington State Department of Transportation, M41-01.32-Standard Construction Manual, August 2018 Edition.

3. Washington State Department of Transportation, M41-10-Standard Specifications for Road, Bridge, and Municipal Construction, 2018 Edition.

5.3 SUBMITTALS:

1. Submit “Weed-Free” certification on any import fill material to be approved by park, as required.

5.4 ADDITIONAL SAFETY RESPONSIBILITIES

1. Maintain excavations in a safe manner that shall not endanger property, life, health, or the project schedule. All earthwork shall be performed in strict accordance with applicable law, including local ordinances, applicable OSHA requirements.

5.5 MATERIALS

1. Bed waterlines in sand that is clean, graded, and washed, passing a No. 4 U.S. Standard sieve, and conforming generally to ASTM C33 for fine aggregate or approved equal.

2. Rest of trench maybe filled with native backfill: Class A Backfill, Construction Manual, Paragraph 9-4.10(3b). Native soil prepared as necessary to be free from clods or rocks larger than two (2) inches in greatest dimension, and free from organic material. All native soil excavated as part of the project but not used as native backfill shall be hauled out of the Park to an approved disposal site.