B08_Attach_01_Specs_Rehabilitate_North_Rim__Vol_A_(Div_01)_20261012.pdf

GRCA - 318719 00 01 01.A - 1

Construction Documents Cover Page Volume A

GRAND CANYON NATIONAL PARK

GRAND CANYON, ARIZONA

Rehabilitate North Rim Infrastructure

GRCA 318719

SPECIFICATIONS

Volume A (Division 01)

CONSTRUCTION DOCUMENTS

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

May 2026

This page intentionally left blank.

GRCA - 318719 00 01 07 - 1

Construction Documents SEALS AND SIGNATURES - Volume A

SEALS AND SIGNATURES - Volume A

It is a violation of applicable laws and regulations governing professional licensing and registration for any person, unless acting under the direction of the licensed and registered design professional(s) indicated above, to alter in any way the Specifications in this project manual.

I hereby certify that the portion of the Specifications described below was prepared by me or under my direct supervision and that I am a duly registered Professional

Engineer under the laws of the State of Arizona.

Ryan Rhoades, PE 05/01/2026

Pages or Specifications divisions or sections covered by this seal:

Sections 01 11 00, 01 26 01, 01 27 00, 01 31 00, 01 32 16, 01 32 33, 01 33 23, 01 33 23.A, 01 35 05, 01 35 13.22, 01 35 23, 01 35 73, 01 35 91, 01 40 00, 01 42 00, 01 50 00, 01 57 19.11, 01 57 19.12, 01 57 23, 01 65 50, 01 67 00, 01 71 21, 01 73 00, 01 73 29, 01 73 40, 01 73 50, 01 73 60, 01 74 19, 01 77 00, 01 78 23, 01 78 23.A, 01 79 00, 01 79 00.A, 01 81 13, 01 91 14

I hereby certify that the portion of the Specifications described below was prepared by me or under my direct supervision and that I am a duly registered Professional

Engineer under the laws of the State of Arizona.

Juan Coronado, PE 05/01/2026

Pages or Specifications divisions or sections covered by this seal:

Sections 01 40 00.A, 01 45 25, 01 73 20, 01 81 10

I hereby certify that the portion of the Specifications described below was prepared by me or under my direct supervision and that I am a duly registered Professional

Engineer under the laws of the State of Arizona.

Jennifer Stillman, PE 05/01/2026

Pages or Specifications divisions or sections covered by this seal:

Section 01 61 03, 01 74 15, 01 75 00

GRCA - 318719 00 01 07 - 2

Construction Documents SEALS AND SIGNATURES - Volume A

I hereby certify that the portion of the Specifications described below was prepared by me or under my direct supervision and that I am a duly registered Professional

Engineer under the laws of the State of Arizona.

Josie Brainard, PE 05/01/2026

Pages or Specifications divisions or sections covered by this seal:

Sections 01 81 33

END OF SEALS AND SIGNATURES

GRCA - 318719 00 01 10 - 1

Construction Documents TABLE OF CONTENTS

TABLE OF CONTENTS

DIVISION 01 — GENERAL REQUIREMENTS

01 00 00 - DIVISION 01 DIVIDER

01 11 00 - SUMMARY OF WORK

01 26 01 - CONTRACT MODIFICATION PROCEDURES

01 27 00 - DEFINITION OF CONTRACT LINE ITEMS

01 31 00 - PROJECT MANAGEMENT AND COORDINATION

01 32 16 - CONSTRUCTION SCHEDULE

01 32 33 - PHOTO DOCUMENTATION

01 33 23 - SUBMITTAL PROCEDURES

01 33 23.A - SubmittalList UPDATED

01 35 05 - ENVIRONMENTAL PROTECTION AND SPECIAL CONTROLS

01 35 13.22 - ARCHEOLOGICAL PROTECTION

01 35 23 - SAFETY REQUIREMENTS

01 35 73 - DELEGATED DESIGN PROCEDURES

01 35 91 - HISTORIC PRESERVATION TREATMENT PROCEDURES

01 40 00 - QUALITY REQUIREMENTS

01 40 00.A - Statement of Structural Tests and Special Inspections

01 42 00 - REFERENCE STANDARDS

01 45 25 - TESTING CONCRETE STRUCTURES FOR WATERTIGHTNESS

01 50 00 - TEMPORARY FACILITIES AND CONTROLS

01 57 19.11 - INDOOR AIR QUALITY MANAGEMENT

01 57 19.12 - NOISE AND ACCOUSTICS MANAGEMENT

01 57 23 - TEMPORARY STORM WATER POLLUTION PREVENTION

01 61 03 - EQUIPMENT - BASIC REQUIREMENTS

01 65 50 - MATERIAL TRANSPORT - HELICOPTERS

01 67 00 - PRODUCT REQUIREMENTS

01 71 21 - SPECIALTY ENGINEERING REQUIREMENTS

01 73 00 - WINTER OPERATIONS

01 73 20 - OPENINGS AND PENETRATIONS IN CONSTRUCTION

01 73 29 - CUTTING AND PATCHING

01 73 40 - EXECUTION

01 73 50 - TRAIL ACCESS MANAGEMENT

01 73 60 - CONSTRUCTION CAMPS AND STAFF HOUSING

01 74 15 - DISINFECTION OF FACILITIES

01 74 19 - CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 75 00 - CHECKOUT AND START-UP PROCEDURES FOR WATER TREATMENT

FACILITIES

01 77 00 - CLOSEOUT PROCEDURES

01 78 23 - OPERATION AND MAINTENANCE DATA

01 78 23.A - CloseoutOperationMaintenanceRequirements UPDATED

01 79 00 - DEMONSTRATION AND TRAINING

01 79 00.A - Demonstration and Training Requirements Table UPDATED

01 81 10 - WIND AND SEISMIC DESIGN CRITERIA

01 81 13 - SUSTAINABLE DESIGN REQUIREMENTS FOR NON-LEED™ PROJECTS

01 81 33 - CYBER SECURITY REQUIREMENTS

01 91 14 - TOTAL BUILDING COMMISSIONING

D I V I S I O N 0 1

GENERAL REQUIREMENTS

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Construction Documents SUMMARY OF WORK

SECTION 01 11 00 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes the following:

1. Work Covered by Contract Documents

2. Work Phases

3. Work Under Other Contracts

4. Government-Furnished Materials

5. Contractor Use of Site

6. Public Use of Site

7. Occupancy Requirements for Buildings

8. Conduct of Operations

9. Work Restrictions

10. Special Construction Requirements

11. Soils Investigation Report

12. Additional Reports

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. Project Location: The project is generally located at Grand Canyon National Park on the North

Rim and innercanyon between the North Rim and Cottonwood Campground. The project areas and associated project volumes are as follows:

1. Project Area 1 – North Rim

a. Volume 01: Pipelines – North Rim. A utility/road/trail corridor extending between the North Rim Tank Farm, near the existing Emergency Medical

Services (EMS) facility on State Route 67, and the Ballfield administrative site between the concessionaire’s housing area and the Grand Canyon North Rim

Lodge parking lot.

b. Volume 02: Pipelines – North Rim to Roaring Springs Pumphouse. A utility corridor (two directionally drilled bores) extending from the existing Ballfield administrative site to the Roaring Springs Pumphouse within the innercanyon.

c. Volume 03: Pipelines - North Rim to Supai Tunnel. A utility corridor extending along the existing waterline alignment between the North Rim Tank Farm and

Supai Tunnel, located near the North Kaibab Trail approximately three (3) miles from the trailhead parking area.

d. Volume 06: North Rim Water Treatment Plant. The North Rim Water

Treatment Plant (NR WTP) site is located adjacent to the North Rim Tank

Farm, southeast of the EMS building.

e. Volume 07: NOT USED.

f. Volume 08: North Rim Wastewater Collection System. The wastewater collection system improvements are generally located in three areas on the

North Rim: NPS Administration (Region 1), Campground (Region 2), and

Concessionaire Administration (Region 3).

g. Volume 09: Power Distribution – North Rim. The power distribution system improvements include localized improvements throughout the developed area of the North Rim peninsula including areas near the Grand Canyon Lodge, GRCA - 318719 01 11 00 - 2

Concessionaire Area, Administration area, Campground/Gas Station area, new

NR WTP site, the Power Distribution Center (PDC) and additional sites located throughout the North Rim.

2. Project Area 2 - Innercanyon

a. Volume 04: Pipelines – Roaring Springs Cave to Roaring Springs Pumphouse.

A utility corridor along the existing pipeline alignment between the Roaring

Springs Cave to the Roaring Springs Pumphouse.

b. Volume 05: Roaring Springs Pumphouse. The Roaring Springs Pumphouse is located adjacent to Roaring Creek and Roaring Springs helipad, upstream of the confluence with Bright Angel Creek.

c. Volume 10: Power Distribution – North Rim to Roaring Springs Pumphouse.

A utility corridor along the existing overhead power alignment between the

Grand Canyon Lodge parking area to Roaring Springs Pumphouse.

d. Volume 11: Power Distribution – Roaring Springs Pumphouse to Manzanita. A utility corridor following the existing Transcanyon Waterline (TCWL) alignment along Bright Angel Creek and the North Kaibab Trail, from the

Roaring Springs Pumphouse to Manzanita.

e. Volume 12: Power Distribution – Cottonwood Campground. Located at

Cottonwood Campground, adjacent to the Ranger Station, which is approximately 6.8 miles from the North Rim via the North Kaibab Trail.

B. The Work is described within thirteen project volumes as follows:

1. Volume 00: General

a. The item consists of general sheets, notes, abbreviations, symbology that apply to all volumes and standard details and schematics that are referenced in multiple volumes. Includes areas available for designated construction camps, staging, limits of construction, and helicopter operations and landing zones.

2. Volume 01: Pipelines – North Rim

a. This item consists of approximately 5,500 LF of 4-IN raw water pipeline, 5,500

LF of 4-IN finished water pipeline, and 8,420 LF of 2 IN conduit and fiber optic cable and appurtenances on the North Rim. Work includes a new 20 FT wide, 3,500 LF gravel access road from the Ballfield to near the intersection of Norton

Court and SR67. Work includes rough grading of the Ballfield site for construction staging of work associated with Volume 02. The raw water and finished water pipelines are routed from the Ballfield site to the new North Rim

WTP/Tank Farm site along the proposed access road and existing trail and utility corridors. The work includes a new 3-phase underground power feed to the North Rim Wastewater Treatment Plant and new 3-phase underground power feed to the new North Rim Water Treatment Plant in existing utility or roadway corridors. The fiber optic is routed from the new overhead power

(Volume 10) at the Grand Canyon Lodge parking along Bridle Path to the new

North Rim WTP site (Volume 6).

3. Volume 02: Pipelines – North Rim to Roaring Springs Pumphouse

a. This item consists of approximately 9,350 LF of 4.5-IN raw water pipeline and

9,350 LF of 4.5-IN finished water pipeline installed in two directionally drilled bores with the following telescoping steel casing (approximately 160 LF of 20-

IN conductor casing, approximately 3,000 LF of 13 3/8-IN surface casing, approximately 17,700 FT of 9 5/8-IN intermediate casing, and approximately

18,700 LF of 7-IN protection casing) drilled from the Ballfield site bore entry pit to the Roaring Springs Pumphouse bore exit.

4. Volume 03: Pipelines – North Rim to Supai Tunnel

a. This item consists of approximately 2,930 LF of 2-IN spoolable composite pipe and 520 LF 1.5 IN steel finished water pipeline and appurtenances from the finished water tanks at the NR WTP site to the Supai Tunnel rest area on the

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North Kaibab Trail. A new bottle filling station and drain are included at Supai

Tunnel rest area. Work includes rock anchors to secure the 2-IN spoolable composite pipe to the canyon wall every 275 FT.

5. Volume 04: Pipelines – Roaring Springs Cave to Roaring Springs Pumphouse

a. This item consists of anchors to support the existing pipe between Roaring

Springs Cave and Roaring Creek, and replacement of the existing power and communication cables between Roaring Springs Pumphouse and Roaring

Springs Cave. Additional work includes removal and replacement of the overflow box near the cave outlet.

6. Volume 05: Roaring Springs Pumphouse

a. This item consists of a new pumping system to convey water from the Roaring

Springs Cave to the new raw water tanks located at the NR WTP. The interior of the existing Roaring Springs Pumphouse (RSPH) will be demolished, including all piping, equipment, electrical, and most interior walls. New automatic backwashing strainers, horizontal multi-stage centrifugal pumps, a new liquid hypochlorite disinfection system, and an outdoor valve vault to house isolation valves will be installed. Two new pipes from the bore exit

(Volume 02) to the RSPH will be installed. A finished water storage tank will be installed on the exterior to the building which will be connected to the existing TCWL for supply to Manzanita/Cottonwood. Electrical work consists of a new electrical transformer and motor control center to accommodate the new equipment, and new variable frequency drives (VFDs) to accommodate the larger pumps. Site work includes new transformers, buried underground electrical, new yard piping, a new finished water tank, slope stabilization, and improvements to the exterior deck and supporting crib wall.

7. Volume 06: North Rim Water Treatment Plant

a. This item consists of a new North Rim WTP that will treat the water source from the Roaring Springs Cave with membrane ultrafiltration and chemical disinfection. The North Rim WTP consists of a 6,200 SF building that includes administration, process, electrical, mechanical, and indoor/outdoor maintenance areas. Finished water pumps will be installed in the new North

Rim WTP to replace the functionality of the existing North Rim

Pumphouse. Two new welded steel raw water tanks will be installed adjacent to the facility and the two existing finished water tanks will be rehabilitated.

8. Volume 07: NOT USED

9. Volume 08: North Rim Wastewater Collection System

a. This item consists of replacement of approximately 11,622 LF of sanitary sewer piping and 46 manhole replacements at various areas on the North Rim including the Grand Canyon Lodge area.

1) Region 1 (NPS Administration): Collection system includes approxi-mately 5,538 LF replacement of sanitary sewer pipe with new PVC sani-tary sewer pipe, ranging in size from 6 IN to 10 IN diameter, 15 concrete manhole structures.

2) Region 2 (Campground): Collection system includes approximately

3,966 LF replacement of sanitary sewer pipe with new PVC sanitary sewer pipe, ranging in size from 4 IN to 8 IN diameter, 22 concrete man-hole structures. Replacement of building laterals for 10 cabins and 1 comfort station. The laterals will be replaced from the cleanout to the sewer trunk.

3) Region 3 (Concessions Administration): Collection system includes ap-proximately 2,118 LF replacement of sanitary sewer pipe with new PVC sanitary sewer pipe, ranging in size from 6 IN to 8 IN diameter, 9 con-crete manhole structures.

4) Lift Station #2: Purchase and replacement of the pumps in existing Lift

Station #2.

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10. Volume 09: Power Distribution – North Rim

a. This item consists of the replacement of 8 existing transformers and appurtenances, installation of 1 new transformer, replacement of 5 existing junction enclosures, replacement of 1 existing shunt reactor, and installation of

4 new pad mounted switches at the North Rim Power Distribution Center and select locations throughout the North Rim. A 750kVA standby generator will be installed in the existing Power Distribution Center and connected to the existing generation switching scheme. An above ground 20,000 gallon diesel fuel storage tank will be installed at the site adjacent to the existing generation building with a new 400 gallon day tank replacing the existing day tank inside the generation tank. The work also includes the replacement and installation of a new 4000 Amp, 480V switchgear in the generator building. The work includes a new power feed to the NR WWTP and new NR WTP.

11. Volume 10: Power Distribution – North Rim to Roaring Springs Pumphouse

a. This item consists of approximately 5,325 LF of three-phase power line, fiber optic, and appurtenances following the existing overhead power utility corridor. Steel power poles will be installed on micropile foundations at four locations in the vicinity of the existing poles: North Rim Bench, Upper Bench, Lower Bench, and Roaring Springs Pumphouse. The overhead conductor will utilize a combination of bare aluminum and insulted aluminum conductor based on the steel pole configuration. New cable marker balls will also be installed along the entire overhead line route to help improve helicopter safety. Fiber optic will be installed in the ground neutral line from the North Rim to Roaring

Springs Pumphouse.

12. Volume 11: Power Distribution – Roaring Springs Pumphouse to Manzanita

a. This item consists of the installation of approximately 3,600 LF of three-phase armored power cable following the existing waterline and trail corridor from

Roaring Springs Pumphouse to Manzanita. Installation of the cable will include different methods depending on the terrain, ranging from rock trenching, scree cover, and rock anchor support.

13. Volume 12: Power Distribution – Cottonwood Campground

a. This item consists of a new photovoltaic solar power installed on the roof of a new shade canopy at Cottonwood Campground. Work includes a new outdoor rated battery enclosure, DC/AC inverter, circuit breaker, and connections to the existing Cottonwood ranger station service entrance. New 1000V rated power cables and conduit will be installed between the shade structure and battery enclosure.

C. Project will be constructed under a single prime contract.

D. All construction staff, materials, and equipment for Innercanyon construction will require transportation into and out via helicopter or foot.

1. Contractor shall provide helicopter operations. Use of Government-owned helicopters by contractor staff will not be permitted. See Section 01 65 50 “Material Transport” for requirements on the use of helicopter transportation.

2. No mechanized ground transportation is permitted on innercanyon trails.

E. The Government has selected the following products and services to be sole-sourced for the

Project. No product substitutions will be allowed.

1. Volume 03: Spoolable Composite Pipe – FlexSteel

2. Volume 05: Multi-Stage Centrifugal Pumps - Flowserve

3. Volume 06: Ultrafiltration (UF) Membrane Systems – Veolia/Suez

4. Volume 09: Standby Generator – Caterpillar

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5. Various volumes – Programmable Logic Controllers (PLCs) – Automation Direct Do-more

6. Various volumes – Water quality instruments – Hach

1.3 WORK PHASES

A. The Work shall be conducted with the following phasing requirements:

1. Volumes 01, 02, 04 and 05 must be ready for use within four hundred and twenty

(420) calendar days after receiving Notice to Proceed, to provide the delivery of water to the existing North Rim Tank Farm.

2. Volume 10 work does not have to be done in the same construction season as the rehabilitation of the Roaring Springs Pumphouse; it can occur during or after Volume 5 work. If the work occurs after the Volume 5 substantial completion, it must be completed when the Roaring Springs Pumphouse is offline from November 1 through May 14.

B. Refer to drawings for additional phasing requirements pertaining to sequence of construction and utility operations. Incorporate phasing requirements on drawings into the construction schedule.

C. Tree removal for all packages shall occur between September 1 and March 31 to avoid bird nesting. Work outside this window may be requested and will require a NPS wildlife bird biologist to perform a nest survey. Surveys shall be conducted no more than five days prior to scheduled activity. Refer to Specification 01 35 05 for additional Wildlife Protection Requirements.

D. The contractor shall prepare a Concrete Phasing Plan that identifies the planned sequences of concrete pours for the Volume 6-North Rim WTP. The Concrete Phasing Plan shall evaluate pour sequences relative to the structural details and specifications, including testing specifications. The Concrete Plan shall be submitted 30 days prior to show drawings submittals for the reinforcement or similar structural submittals. The Concrete Phasing Plan is to be included with the Construction Schedule and defined in 01 32 16 Construction Schedule.

1.4 WORK UNDER OTHER CONTRACTS

A. General: Cooperate and coordinate with concurrent active construction contracts contractors so work on those contracts may be carried out smoothly, without interfering with or delaying work under this Contract. Coordinate Work of this Contract with work performed under separate contracts. Some of the concurrent contracts will have a direct and indirect potential impact to this project schedule; successful bidder is encouraged to communicate and coordinate early in schedule development and finalization of baseline schedule.

B. Existing NPS Operations: Contractor helicopter operations will be on or adjacent to the South

Rim helibase, North Rim helipad, Roaring Springs helipad, Manzanita helipad, and Cottonwood

Campground helipad used by NPS for operations including transporting personnel and materials, emergencies, and search and rescue missions. Contractor shall yield all work to the needs of helibase operations at any time. Helibase operations will have final authority to stop construction work in all areas including during helicopter operations and emergencies, if required. Grand

Canyon National Park Helibase is solely responsible and legally bound to managing the airspace that is required to support the project areas via innercanyon. Aviation operations are subject to conforming to internal policy NPS Reference Manual 60 and GRCA's Internal Aviation

Management Plan (IAMP). See Specification Section 01 65 50 – Material Transport-Helicopters for the details associated with use and coordination.

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C. Facilities Maintenance Division (FMD) operations: The South Rim contractor support facilities are located adjacent to the South Rim Facilities Maintenance Division (FMD) for Grand Canyon

National Park. Contractor shall conduct work to have minimal impact to these facilities or operations.

D. Other NPS Operations: NPS conducts other Park operations for official and visitor purposes.

Contractor shall conduct work to have minimal impact on these operations and visitor enjoyment.

Temporary safety shutdowns in specific geographic location of contractor work may occur due to emergency park operations at any time during the contract period in and or outside of the limits of construction.

E. Concurrent Work: Government has awarded separate contract(s) for the following construction operations at Project site. Those construction operations potentially will occur simultaneously with portions of work under this Contract.

1. GRCA 190083 TransCanyon Waterline Replacement: A separate contract has been awarded for the replacement of the TransCanyon Waterline (TCWL). The work includes improvements to the raw water, potable water, electrical and communications systems within the Innercanyon and South Rim. Specific areas of TCWL project geographic and utility operations interface includes: 1) Rehabilitation of the TCWL between Roaring Springs Pumphouse and Manzanita, and 2) water distribution improvement within the Cottonwood Campground. In addition, the TCWL Contractor will use the South Rim Contractor Support Facilities for staging and a base for helicopter operations. The Contactor for Rehabilitate North Rim Infrastructure shall coordinate Innercanyon work with the NPS and defer helicopter use until completion of the TCWL Replacement project. Currently, the substantial completion date for

TCWL Replacement project is summer 2027.

2. GRCA 257282 South Rim Wastewater Treatment Facilities: This project will replace the South Rim Wastewater Treatment Plant with a new facility. The existing plant services all visitor, resident staff housing, lodging, and support facilities at the South

Rim. Work may coincide with deliveries, staging, use of Helibase at the South Rim and South Rim contractor support facilities. Planned construction period of 2027 to

2030.

3. Replacement of Overhead Power from Hopi Point to Havasupai Gardens: Will include helicopter flights from the South Rim Helibase and Contractor Staging. Planned construction period of 2026 to 2029.

4. North Rim Temporary Wastewater Treatment Plant

a. This project will install a temporary wastewater treatment plant to the north of the permanent wastewater treatment plant that was damaged in the Dragon

Bravo Fire. Estimated construction period of performance October 2026 through June 2027. Work will be local to the existing WWTP area but may utilize some of the same construction staging areas.

5. Fire Recovery Operations: Hazard tree and debris removal from fire recovery operations on the North Rim and around the WWTP; estimated period of performance

April 2026 through November 2028.

6. Rehabilitation of water, power, wastewater infrastructure damaged in fire; estimated period of performance October 2026 thru December 2026.

7. Replacement of SR67 from Entrance Gate to Grand Canyon Lodge:

a. The construction approach for the SR67 project has identified the need for a temporary asphalt batch plant with a preliminary location being identified as

Marble Flats. This site is available for Contractor use as a temporary batch plant if needed. Road work likely in two phases- stabilization and then complete rehabilitation. Planned construction period of 2026 to 2029. However, work will not begin until this project is complete.

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8. Aramark CFIP Projects to be completed prior to the North Rim seasonal opening in the spring of 2027 (projects are tentative):

a. CFIP Project #1: Rehabilitate/Remodel EDR, Dorm and Staff Housing

b. CFIP Project #2: Food and Beverage at General Store

c. CFIP Project #3: Motel Renovation and New Hostel Rooms/Admin Space

d. CFIP Project #4: ABA Conversion of Two Cabins

e. CFIP Project #5: Rehabilitate (4) Cabins Near General Store

f. CFIP Project #6: Rehabilitate the Historic Storage/Linen Cabin

9. North Rim Permanent Wastewater Treatment Plant

a. This project provides a permanent replacement of the existing NR WWTP that was destroyed during the 2025 Dragon Bravo fire. Once the permanent NR

WWTP is operational and online, the North Rim Temporary Wastewater

Treatment Plant will be decommissioned and removed from the site.

Construction of the North Rim Permanent Wastewater Treatment Plant is planned for Spring 2029 through Fall 2031.

1.5 CONTRACTOR USE OF SITE

A. Limits of Construction (LOC): Contractor shall have limited use of site for construction operations.

1. Limit use of premises to areas within the Limits of Construction indicated on drawings.

Do not disturb portions of the site beyond these areas. The Contractor shall clearly delineate the boundary of the Limits of Construction (LOC) prior to commencing work using fencing, flagging or other approved methods. Delineation shall be maintained for the duration of construction and shall correspond to the LOC shown on the drawings.

Erosion and sediment control features (silt fence, wattles, etc) may be used to satisfy this requirement where they are installed at the LOC boundary.

2. Contractor may request deviations from the Limits of Construction but approval is not guaranteed. Generally, the approval process once all information has been provided is up to 90 days or longer if outside agency coordination is required.

B. Equipment and Material Staging: Confine storage of materials to staging areas shown on plans.

1. Equipment and material staging areas are intended for deliveries and storage of tools and equipment, material stockpiling, construction equipment parking, construction vehicle parking, construction administration trailers, and similar.

2. Confine stockpiling to equipment and material staging areas. Small stockpiles within limits of construction for use in localized trenching work is acceptable.

3. Areas within the limits of construction that are not designated for equipment and material staging shall not be used for this purpose.

4. Equipment and material staging areas should not be used for construction camps including camping units, trailer complexes for living areas, private vehicle parking, and similar.

5. Prior to work commencing in each geographic area within limits of construction, the contractor will site walk each site with NPS COR, CMR and NPS vegetation specialist to identify vegetation to be salvaged. Any vegetation that can't be salvaged will be disposed of outside of the park boundaries. Additional resources specialists will survey areas pending sensitivity of each location.

C. Parking:

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1. Private vehicles for construction personnel shall be parked at designated construction camps or outside the Park.

2. Contractor shall provide a shuttle bus for construction personnel from the designated construction camps and other off-site lodging locations.

3. Parking for marked construction vehicles shall be limited to the following areas between April 15 and November 30 (visitor season):

a. Volume 01: Ballfield staging area

b. Volume 06: NRWTP staging area

c. Volume 09: Power Distribution Center - up to 5 vehicles

d. Helibase Road trailer, staging and construction camp area, adjacent to the existing North Rim WWTP. This can only be used once the contractor for construction of the Temporary WWTP has completed the work.

4. Marked construction vehicles can be parked at the North Kaibab trail parking lot, Grand

Canyon Lodge visitor overflow parking, North Rim Campground, NPS administrative facilities, and Concessionaire administrative facilities for no more than 2 hours and up to 2 vehicles at any time in a single location.

D. Preservation of Natural and Manmade Features:

1. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants with like species, at no additional expense to the Government.

2. Provide temporary barriers to protect existing trees and plants and root zones.

3. Provide temporary construction protection mats for all areas where construction may impact a wetland, saturated conditions, or other sensitive areas. All areas that are disturbed must be restored per Specification 01 35 05.

4. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer (CO) and remove agreed-on roots and branches that interfere with construction. Contractor shall follow Grand Canyon vegetation guidelines related to pruning and root cutting.

5. Do not fasten ropes, cables, or guys to existing trees.

6. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

7. All trees over six (6) IN DBH (diameter breast height) shall be salvaged, transported and stacked in four (4) FT sections at a Native American Tribal location at no cost to tribes within 150-mile radius of removal site. Prior approval of tribal locations for delivery and approval by tribes must be demonstrated prior to transporting outside the

NPS boundaries. All slash to be removed by contractor and disposed of outside of the park.

8. Maintain work buffer of at least 5 FT from historic features including rock walls along trails and parking areas. Historic rock curbing and sidewalks in front of General Store will be protected in place.

9. Repair and restore trails and ground to original condition.

10. NPS will provide native seeds for contractor re-seeding of post construction disturbed areas. The seeds need to be collected by the NPS and written request for the seed will need to be provided twelve (12) months prior to scheduled re-seeding.

11. Any proposed use of herbicide or pesticide must be approved by NPS CO as part of existing approved products and licensed applicators.

12. Dispose of unsuitable excavated materials for backfill and spoils at the Ballfield per

Volume 01 Drawing 013L101.

E. Driveways and Entrances: Keep driveways, trails, and entrances serving NPS and concessionaire premises clear and available to Government employees, and emergency vehicles at all times. The

EMS building driveways and entrances shall not be used by the Contractor. Do not use for parking or storage of materials.

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1. Schedule deliveries to minimize use of driveways and entrances.

2. Schedule deliveries to minimize space and time requirements for storage of materials and equipment on-site.

F. Construction Camp: Establishment of a camp will be permitted at Lindberg Hill, Dusty Road, near the North Rim Temporary WWTP (once the contractor for construction of the Temporary

WWTP has completed the work), Cottonwood Campground (use for all innercanyon work), and

South Rim Contractor Support Facilities as shown on drawings and specified in 01 73 60

“Construction Camps”. Provide utilities as specified in Section 01 50 00 "Temporary Facilities and Controls". Adhere to park rules, animal deterrent policies, cleanliness policies, and return site to previous condition at completion of work.

G. Hauling Restrictions: Comply with legal load restrictions on hauling of materials. Load restrictions on park roads are identical to state load restrictions with such additional regulations as may be imposed by the Park Superintendent. Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1. State Route 67 (SR67) is heavily used for visitor traffic and park operations. Contractor shall not impede flow of traffic for equipment and material deliveries at any time, unless otherwise approved by the Contracting Officer.

2. Contractor shall use the North Rim park entrance gate and South Rim park entrance gate. Contractor personnel providing identification of employment with the Contractor or in a marked vehicle are not required to pay Park entrance fees. Contractor shall not use other entrance roads into the Park.

3. South Rim Shuttle Bus Road near the Contractor Support Facilities on the South Rim is the primary access route for Facility Maintenance Division (FMD), helibase, and wildland fire staff and associated activities. Contractor shall not use Shuttle Bus Road or associated parking facilities for construction purposes without prior approval from the Contracting Officer.

H. SR67 Restrictions: Contractor shall identify jurisdictions, load restrictions, permit requirements, time and calendar restrictions as required for use of SR67. Contractor shall be responsible for obtaining any permits with Arizona Department of Transportation and Coconino County as required.

1.6 PUBLIC USE OF SITE

A. The contractor will attempt, to the extent possible, to schedule any needed trail, rest area, campground, or campsite closures during lower visitation times (e.g., winter, outside peak rim-to-rim times) to minimize visitor impacts.

B. Road restrictions (one lane must be passable with traffic control) may be permitted within park boundaries, when required, upon specific approval of Contracting Officer for a maximum of 8 hours within a single day.

C. The following areas will be closed to the public for the construction durations identified below.

Contractor shall submit a trail, rest area, campground, camp site closure plan as part of the construction schedule for review and approval by the Contracting Officer prior to work commencing. Refer to 01 73 50 for additional requirements. Request for closure is based on accepted baseline schedule six months or more prior to start of planned work.

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1. The North Kaibab Trail between the Redwall Bridge and Manzanita will be closed when the directional drilling is exiting the rock face near the Roaring Springs Pumphouse.

2. The North Kaibab Trail between the North Rim and Manzanita will be closed during a portion of overhead power installations when the work is overhead or in the vicinity.

3. A portion of the Supai Tunnel rest area will have a localized closure during construction activities for the water spigot, bottle fill station, and associated piping. The North

Kaibab Trail will remain open through this area.

4. The North Kaibab Trail will be closed for the pipe installation from the North Rim to

Supai Tunnel.

5. Temporary closure of the North Kaibab Trail will be required during installation of the power from Roaring Springs Pumphouse to Manzanita. It is anticipated this closure will only be required when the alignment follows the trail.

6. Cottonwood Campground will have a localized closure during innercanyon construction activities to accommodate a construction camp. The North Kaibab Trail will remain open through this area.

7. A portion of the North Rim Visitor Center Parking Lot will be closed during construction activities within the limits of construction of the North Rim overhead power bench. Traffic will be routed through other areas of the parking area.

8. The Bridle Path follows SR67 and connects the Grand Canyon Lodge with the North

Rim Campground, the NPS Administrative Offices, and the North Kaibab Trailhead.

Volume 01: Pipelines – North Rim is located within a portion of the Bridle Path. Bridle

Path will be closed during the construction. Traffic will be rerouted to the Transept

Trail.

9. The Transept Trail links the northern portion of Bridle Path, the NPS Administrative

Offices, and the Grand Canyon Lodge and passes nearby the Ballfield site. The Transept

Trail will remain open to the public.

1.7 OCCUPANCY REQUIRMENTS FOR BUILIDINGS

A. Existing Buildings

1. Partial Government Occupancy: Government will occupy premises during entire construction period, with exception of areas under construction. Cooperate with

Government during construction operations to minimize conflicts and facilitate

Government usage. Perform Work so as not to interfere with Government’s operations.

Maintain existing exits, unless otherwise indicated.

2. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from Contracting Officer.

1.8 CONDUCT OF OPERATIONS

A. Contractor shall conduct his operations in conformance with rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by Park Superintendent.

B. No signs or advertisements (except those specified herein) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

1.9 WORK RESTRICTIONS

A. On-Site Work Hours:

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1. North Rim: Work on the North Rim shall be generally performed during the hours of 6 a.m. to 6 p.m., Monday through Sunday. Work in the Campground and near the Grand

Canyon Lodge during the weekends will not start until 9 a.m.

2. Innercanyon: Work in the Innercanyon shall be generally performed during the hours of 6 a.m. to 6 p.m., Monday through Sunday.

3. Project helicopters will generally fly between 8:00 (power on) a.m. and 5:00 p.m. (shut down) each day with generally no flights between 5 p.m. and 8:00 a.m. In no case will flight occur before 1/2 hour prior to sunrise and 1/2 hour after sunset: Instrument Flight

Rules (IFR) are prohibited. Deviations from specified flight times must be approved by the South Rim Helibase Manager and Contracting Officer.

4. Night Work Hours: Work outside established work hours can be requested by contractor.

a. Volume 02: Pipelines – North Rim bore drilling operations is pre-approved for

24-hour operations.

b. Innercanyon night work will not be approved due to wildlife and/or visitor services.

B. Work on Federal holidays may not be performed without prior consent from the Contracting

Officer. Submit requests 5 business days in advance of the work to the Contracting Officer for approval.

C. Existing Utilities

1. Utility Locating:

a. Notify Contracting Officer and utility companies of proposed locations and times for excavation. NPS will not be responsible for clearance or locating NPS owned utilities. Contractor shall utilize a third party locator and potholing services as required to clear utilities prior to excavation.

b. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the

Government.

c. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

2. Maintenance of Utility Operations

a. Roaring Springs Pumphouse

1) Once Volume 05 work is substantially complete, RSPH must remain op-erational between May 15 and October 31 each year.

2) Overhead power to RSPH must remain operational between May 15 and

October 31 each year.

b. North Rim Water Distribution System

1) North Rim Pump Station and water distribution system must remain op-erational at all times of year.

2) Two finished water storage tanks shall remain operational at full capac-ity between November 1 and May 14 due to winter storage requirements on the North Rim.

3) One finished water storage tank shall remain operational between May

15 and October 31 while the other finished water tank is off-line for re-habilitation.

4) Authorized restricted use of water and power for North Rim reference 01

50 00-1 section 1.3.

5) The existing standby generators at the Power Distribution Center must remain operational at all times of year.

c. North Rim Wastewater Collections

1) The main North Rim wastewater collections and temporary treatment shall remain operational between April 1 and October 31 each year.

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Sewer manholes, gravity sewer segments and lift station shall remain operational between by bypassing and pumping flows as necessary.

2) The collection system at the Administration area and winter treatment system (septic system) shall be operational from November 1 to March

31 each year.

3. Existing Utility Interruptions:

a. Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

b. Notify Contracting Officer not less than fourteen (14) days in advance of proposed utility interruptions.

c. Do not proceed with utility interruptions without Contracting Officer’s written permission.

d. Hours and length of Utility Shutdowns: to be approved on case-by-case basis through notification and approval by Contracting Officer.

D. Mule Train Routes: Anticipate approximately 2 mule trains per day from North Rim to Supai

Tunnel along the North Kaibab Trail between May 1 and October 31. The Contractor will be required to temporarily stop construction activities to allow mule trains to pass the work area unless the North Kaibab Trail is closed for construction as detailed in Specification Section 01 73

50.

E. Communications equipment proposed by type, purpose and geographic location to include inside the limits of construction to the CO in to ensure that there is no communications conflict with

NPS operations. This includes but is not limited to radio repeaters, antennas, handheld radios, aviation radio systems, internet equipment that uses cellular and satellites to communicate.

F. Mechanical equipment will have all industry available noise damping and spark arrestor features to mitigate the decibel output of equipment. Failure to provide such features may result in the

NPS CO directing non-use of specific equipment for non-compliance until the requirement is made for the specific equipment.

G. Nonsmoking Building/Tobacco Use/Vaping: Smoking is not permitted within building or within

25 feet of entrances, operable windows, or outdoor air intakes.

1. Smoking is not permitted in buildings.

2. Due to concern of wildland fires, smoking is allowed only in a single designated outside area of no larger than 500 sf within designated construction staging areas. This area shall be clear of exposed vegetation and have adequate means for disposal of trash and flammable materials.

1.10 SPECIAL CONSTRUCTION REQUIREMENTS

A. Project Website: A project website administered by NPS CMR will be used for purposes of managing communication and documents during construction stage.

1. See Section 01 31 00 "Project Management and Coordination" for requirements on using Project Website.

B. The A/E has obtained the Approvals to Construct (ATC) for water system work through Arizona

Department Environmental Quality (ADEQ), reference 01 31 00-10 1.9/B/1 for list of specific

ATCs. The ATCs issued by ADEQ expire within one (1) year from the issue date for initiation of construction and notification for each individual ATC scope permit. Given the time frame from issue date of ATC to construction contract award and notice to proceed (NTP), the ATCs will be

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near expiration. The construction contractor will need to upon issuance of NTP submit an extension request to ADEQ for each individual ATC to include the extension request fee. Failure to request extension prior to expiration will result in the construction contractor having to submit a full new request for the ATC. Generally the time extension is half or less the cost of the original

ATC permit and less of an administrative requirement. This can be referenced on the public

ADEQ website: DW Engineering Review | Facilities Review Application | ADEQ. Contractor will be responsible obtaining the AOC (Approval of Construction) post construction of each ATC, paperwork and fees.

C. The North Rim has a seasonal shutdown of visitor services that varies each year. Typically the shutdown to overnight visitors begins on October 15 and the shutdown to day visitors begins on

November 30. The North Rim typically reopens to visitor services on or around May 15. Vehicle traffic is often impassable due to snow accumulation and other weather events on SR67 from

Jacob Lake to the North Rim Lodge and on other North Rim roadways from first Monday after the first full weekend in December until May 15. The contractor shall maintain access at all times if working at the North Rim during this period. Snow removal of SR67 and Park roads will not be provided by NPS or the ADOT and will be the responsibility of the contractor. ADOT does not maintain the only road access to North Rim, Grand Canyon National Park (project location), SR67 in the winter from the first Monday of the first weekend in December through May 15;

reference 01 73 00 Winter Operations.

D. The Contractor shall not construct permanent structures or install permanent utilities at staging areas or Contractor camps unless specifically shown in the Contract Documents or authorized in writing by the Contracting Officer. Any proposal for permanent structures or utilities at these locations must be submitted to the Contracting Officer for review and acceptance prior to construction.

E. Hazardous Materials:

1. The Roaring Springs Pumphouse was tested for Asbestos Containing Material (ACM) and Lead-Based Paint (LBP). The results and findings are contained in the report, “Asbestos Inspection and Lead Paint Screening at Roaring Springs Pump House and

Day-Use Structure, North Rim, Grand Canyon, Arizona” prepared by Landmark

Environmental, November 7, 2022. The report does not identify ACM within the project structures. LBP may be present on exterior wood siding within the Roaring

Springs Pumphouse.

2. The existing two 2-million gallon water storage tanks were tested for Asbestos

Containing Material (ACM) and Lead-Based Paint (LBP). The results and findings are contained in the report, “TM NR Finished Water Tank Coating Lead Tests” prepared by HDR Engineering, May 28, 2025. The report identified LBP within the roof coating.

3. LBP abatement or demolition activities shall conform to OSHA Lead in Construction regulations found in 29 CFR Part 1926.62 which require the employer provide worker protection.

F. The drawings survey data of features and conditions are prior to the 2025 Dragon Bravo Fire and

2026 floods that impacted some areas within this drawing set. Contractors are expected to conduct due diligence during the solicitation phase to identify any changes or conflicts between the drawings and existing conditions due to the fire and provide in writing for technical and price proposals. Contractors are expected to conduct due diligence site visit within 45 days of issuance of notice to proceed (NTP) with Contracting Officers Representative (COR) and onsite CMR to field evaluate locations impacted by the fire within scope of contract documents prior to initiation of work. Notify the Contracting Officer in writing of changes or conflicts between the drawings and existing conditions due to the fire that would impact scope, cost, or schedule.

https://www.azdeq.gov/facilitiesreview#:~:text=An%20Approval%20to%20Construct%20%28ATC%29%20is%20a%20certificate,or%20operational%20performance%20of%20a%20public%20water%20system.

GRCA - 318719 01 11 00 - 14

1.11 ADDITIONAL REPORTS

A. The following reports are provided as an appendix to the project specifications. In case of conflict between report and drawings or specifications, the drawings and specifications govern.

1. Geotechnical Investigation Report (GIR); GRCA 318719 Rehabilitate North Rim Infrastructure; Grand Canyon North Rim, Arizona; prepared by GEI; August 11, 2025.

2. Geotechnical Investigation Report (GIR); GRCA 318719 Rehabilitate North Rim Infrastructure; Grand Canyon Inner Canyon, prepared by GEI; August 11, 2025.

3. Geologic Interpretive Summary Report; GRCA 318719 Rehabilitate North Rim Utility Infrastructure, prepared by GEI, March 31, 2026.

B. The following reports are provided for project reference.

1. Bore B Drilling Plan; GRCA North Rim Rehabilitation (244 pages), prepared by Geostock Sandia, April 2, 2026.

2. Asbestos Inspection and Lead Paint Screening at Roaring Springs Pumphouse and Day-

Use Structure, North Rim, Grand Canyon, Arizona (29 pages). prepared by Landmark Environmental, November 7, 2022.

3. Finished Water Storage Tank Inspection - Lead Coating Tests (3 pages), prepared by HDR Engineering, July 14, 2025

4. Representative UF Membrane Skid Process and Instrumentation Diagrams (25 pages), prepared by Suez, March 29, 2021.

5. Upper Bench Power Pole Site Visit Notes (22 pages), HDR Engineering, January 31, 2025.

6. North Rim Power System Analysis Report (442 pages), prepared by HDR Engineering, March 24, 2025.

7. Intergovernmental Agreement (IGA 24-0009595-I/P0012024001153): Snow Removal and Boundary Management between ADOT and NPS (8 pages), August 28, 2024.

8. North Rim Geophysical Studies; GRCA 318719: Rehabilitate North Rim Utility Infrastructure (419 pages), Geostock Sandia, May 19, 2025.

9. Trail Management Standards for…