Statement_of_Work_Revised_June_25_2024_0001.pdf

LAKE MEAD NATIONAL RECREATION AREA

BOULDER CITY, NEVADA

RECOAT INTERIOR OF LAS VEGAS BAY RAW WATER TANK AND REPLACE

ASSOCIATED PIPING AND VALVES

LAKE – 233763

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

June 25, 2024

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DIVISION 1 GENERAL REQUIREMENTS

SECTION 01110 SUMMARY OF WORK

1.1 EXISTING CONDITIONS

The Project location is the Lake Mead National Recreation Area. The site is located near the Las Vegas Bay developed area.

The purpose and need for this project is to perform periodic cyclic maintenance cleaning of the inside of the concrete water tank at Las Vegas Bay. The concrete tank has 2 cells which consists of a 150,000-gallon two cell partially buried concrete water storage tank.

This concrete tank is a mission critical component of the water system that provides drinking, irrigation and fire protection water to the visitors and park employees of Las Vegas Bay. The last repainting of this concrete was done when it was built in 2001. Regular cleaning of the lining of the tank is a critical component to maintain the Nevada State permit and the condition of the potable water.

The existing valve vault with the valves and piping are located inside a confined entry space.

To remove the confined space entry restrictions and allow safer and easier access to the valves by park employees, an opening will be saw-cut through the concrete wall.

The existing raw water steel tank will be disconnected from the water system. A connection will be made from the potable water lines and concrete to the existing raw water lines. The raw water lines will be converted to potable water lines. Chlorination and water quality testing of the raw water lines throughout the Las Vegas Bay Village area will be conducted.

Due to the deteriorated condition of the adjacent steel water tank, the steel tank will be taken offline, and the concrete tank will be put fully in service. Only one cell of the concrete tank is currently in operation. Refurbishing both cells of the concrete tank would fully put the tank into service while being able to take the steel tank out of service.

The addition of the access door to the valve vault will increase the safety of the NPS employees allowing them access to the equipment. The restrictive confined space entry requirements will be removed allowing easy access to the components for maintenance and adjustment.

The existing ductile iron pipes and valves have corroded. From recent inspections of the tank interior, the piping corrosion is producing metal scale and debris that is entering into the water supply. Replacing of the corroded pipes will produce a cleaner water supply for the public users.

The supplier of the raw water to the NPS is unable to continue supplying water. Conversion of the raw water lines to potable water lines will prevent future cross contamination of the raw and potable water in the developed areas. The connections will allow the movement of water from the potable water tank to the existing raw waterlines converting them to potable water lines.

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1.2 GENERAL PROJECT STATEMENT

A. The project requires construction services of draining the tanks, removal and replacement of existing ductile iron valves and piping, cleaning interior of the concrete tank, saw cutting a concrete wall to install a steel door and frame, installing a pipe connection between the 4 inch main and the 10 inch main, refilling the tank, disinfecting, performing water samples, obtaining NDEP construction and operation permit and providing testing and coordination with NDEP.

B. A site visit will be scheduled for a pre-bid visit with the interested respondents.

C. Contractor shall provide their own equipment and transportation to and from the construction site.

D. Permit for construction, revision, and operation of a potable water storage, upgrading of the piping system and disinfection of the existing pipelines shall be obtained (if needed) from the State of Nevada Division of Environmental Protection (NDEP) prior to start of construction.

1. Contractor shall manage any permit application and closeout process with NDEP.

2. Any engineering work that is needed to prepare and closeout the application shall be included in this proposal.

3. Any engineering support shall be licensed in the State of Nevada to facilitate the application process. NDEP requires a Nevada Professional Engineer (PE) license and signature in their sections requiring PE signatures.

E. Permit for dust control may be needed. The contractor shall verify the need for a dust control permit with the Clark County Division of Air Quality. If the permit is needed, the contractor shall coordinate, apply and obtain from the permit from the Clark County Division of Air Quality. Permit sign shall be posted on the job site. A copy of the Permit shall be forwarded to the COR. Contractor shall be responsible to maintaining the requirements stated in the permit and any close out procedures at the end of the project.

1.3 SCOPE OF WORK

The scope of work for this contract consists of:

A. See LAS VEGAS BAY SITE MAP maps Figure 3, 4 and 5.

B. See pictures at the end of these specifications for existing site conditions and visual site conditions.

C. The water tank shall remain in operation during the project. There are 2 separate cells within the concrete tank so phasing of the work is possible. Short term interruptions for connections and tie-ins is acceptable

D. All products shall be new and undamaged. Products and equipment shall be properly handled and stored on site.

E. Laydown and storage areas shall be coordinated with the COR on site.

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F. A field report conducted from Underwater Cleaning and Inspection is attached at the end of this document.

G. As-built drawings from the original contract documents is attached at the end of this document.

H. Work shall adhere to Nevada Legislative Code Chapter 445A – Water Controls NAC:

CHAPTER 445A - WATER CONTROLS (state.nv.us)

1. Other sections of the legislative code may apply, the following sections are highlighted and should not be considered as the only sections to be considered.

2. NAC 445A.67065 Storage structures: General requirements.

a. The materials and design of storage structures must provide stability and durability and protect the quality of the stored water.

b. Before a product may be used to coat, seal, patch or otherwise become attached to the interior surface of a storage structure, the product must be determined to be compatible with drinking water.

3. NAC 445A.67085 Storage structures: Coatings; disinfection.

a. All metal surfaces of a storage structure must be properly protected by the application of paint or another coating. The coating used must not result in the transfer of any substance into the water which imparts a taste or odor to the water or causes the water to exceed any primary or secondary standards. All internal coatings must be determined to be compatible with drinking water.

The code states metal surfaces. For this project, assume surfaces refer to the concrete tank. The concrete coatings shall be compatible with drinking water.

b. A storage tank, whether coated in the field or in the factory, must not be placed into service unless:

(a) The tank is cured for the appropriate time.

(b) After the tank is cured, the tank is filled with water and the water is retained in the tank for 5 days.

(c) The water retained in the tank is tested on the sixth day by a properly certified laboratory for the presence of volatile organic chemicals.

(d) The results of the test are submitted to and approved by the Division or the appropriate district board of health.

c. Storage structures must be disinfected before being put into service for the first time and after being entered for cleaning, repair or painting. The disinfection must be conducted in accordance with American Water Works Association Standard C652, as adopted by reference in NAC 445A.6663. The disposal of any heavily chlorinated water that results from the process of disinfection must be coordinated

LAKE 233763 Page 5 of 81 with the Bureau of Water Pollution Control of the Division. Before the structure is placed into operation after disinfection, two samples of water in the structure, taken at least 24 hours apart, must indicate that any concentration of coliform bacteria in the structure meets primary standards.

I. Other design standards and specifications refer to the use of the 2010 Las Vegas Valley

Water District “Uniform Design and Construction Standards for Potable Water Distribution Systems” 3rd Edition. Referred to as “UDACS Specs”.

https://www.lvvwd.com/engineering-resources/design/index.html

J. All products shall be certified NSF 61 and NSF 372 for Lead Free products and all components used. Certifications or documentation of the equipment shall be included in the O&M manuals and included with the approval request submittals to the COR.

1. Include in the final manual submit cut sheets, parts listing, sizes installed that illustrate that all of the materials and components that come into contact with water is shown as a product that is NSF61 “Lead Free” certified.

K. Pipe bedding shall be Type II or granular material. See UDACS Plate 16. This material shall be used for bedding, haunch support and initial backfill cover. The remaining material to the finished grade or subgrade for asphalt may be native soils dug out of the initial trench. All materials shall be properly compacted.

L. Pipe depths shall match existing.

M. Pipe bedding shall follow UDACS Specs 3.10.03, 3.10.04, 3.10.05. See UDACS Plate 15,16 and 19.

N. Concrete thrust blocks shall be use per UDACS Spec 2.14, 3.22 and UDACS Plate 31.

O. Pipe Locator Ribbon indicating a WATER line is located below shall be placed per UDACS

Plate 15.

P. Water Tank Interior Cleaning Requirements:

1. Water shall be drained from the concrete tank cell that is being worked on.

2. Proof of any necessary federal, state, or local permits or licenses necessary for the project.

3. Contractor shall inspect all surfaces specified to receive a cleaning prior to surface work.

Contractor shall notify Contracting Officer or their representative of any noticeable disparity in the surfaces which may interfere with the cleaning or long term reliability of the tank surface coating.

4. Contractor shall clean the interior of the water tanks. Any cleaning material or debris removed shall be removed from the tanks and properly disposed of.

5. All contaminants including oils, grease, unsound or incompatible existing coatings, waxes, form release, curing compounds, efflorescence, sealers, salts, or other contaminants shall be removed.

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6. The water storage tank shall be disinfected prior to being placed into operation.

7. Testing of water following disinfection shall consist of two or more successive bacteriological samples taken at 24-hour intervals and tested at an independent certified testing laboratory as specified in the Nevada Legislative Code.

Q. Proposed door system into the existing valve vault: Contractor shall be responsible for the installation of a steel door into the side of the valve vault.

1. The existing valve vault is within a “Confined Space Entry Restriction”. This is preventing easy access to the equipment by NPS staff. The desire is to install an additional entry point to the valve vault room.

2. The existing concrete is a reinforced cast in place concrete wall. The wall is 8 inches thick. The wall has #6 reinforcing bars both vertical and horizontal. See attached plan details.

3. Contractor shall saw cut an opening for a standard steel door and frame to be installed.

4. Standard Steel door and frame to be installed.

a. Standard 36-inch-wide steel door and frame shall be installed and secured.

b. Door shall be vented with a secure steel vent frame in the door. Small vent louvers are acceptable. Contractor shall submit design for the door and vent.

c. Door handle shall a Stanley Security Solutions “BEST” brand door handle and lock installed.

d. Lockset shall be a Apex 2300 Series Touch bar Exit Device single door application.

4900B Lever. 626 trim (finish). Provide submittal of the product for approval.

e. Strike plate based on door thickness. Consider S982 strike plate.

f. Locking core shall be supplied and installed by the NPS.

5. The door shall be installed no more than 1 inches above the current floor level of the valve vault floor. The door opening shall be installed at least 12 inches away from the existing entrance hatch rungs.

6. The manway rim distance to the floor is 213 inches. The current distance from the manway rim to the top of the soil is 111 inches. This would require the excavation and removal of 102 inches or 8.5 feet.

a. Excavate the soil from around the corner of the valve vault on the side indicated with the interior stairs.

b. Grade the soil to drain away from the road and towards the drainage swale near the fence line. Grade to drain.

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c. Install a decorative block wall at the end of the valve vault wall towards the fence line. Maintain the existing ground cover height over the inlet and drainpipes existing the valve vault. Place the wall height to all the water from the entrance pad to drain away from vault and towards the swale at the fence.

d. Install a 4-foot by 4-foot square by 4-inch-thick concrete landing pad on the outside of the door opening. The top of the landing pad should be at the elevation of the base of the door opening. Wire mesh shall be installed in the concrete pad.

e. Backfill and grade around the landing pad.

f. Excavated soil may be placed in the open area between the existing steel tank and the fence. See Figure 5.

R. A 4-inch mushroom style venting system shall be installed in the ceiling of the valve vault room. See the picture at the end of the specifications illustrating an ideal location of the vent. Vent shall be sealed/screened to prevent wildlife from gaining entry into the vault room. Core drilling through the concrete slab will be needed.

S. Proposed System replacement of the ductile iron piping: Contractor shall be responsible for the removal and installation to match the existing layout of the piping inside the concrete tank and the valve vault.

1. As-built plans sheet C14 indicate the existing valve layout.

2. Verify against drawing against the as-built conditions.

3. The altitude valve indicated on the plans is not currently installed and should not be reinstalled.

4. As-built sheet C15 indicates that the ductile iron pipes connect to PVC pipe (detail B) with a transition coupling 2 feet outside of the concrete tank exterior wall. Replace the ductile iron up to this coupling. Reuse the coupling if possible.

5. As-built sheet C15 indicates the ductile iron drain pipes drain (Detail A) to the outside of the vault continuously with no connection or coupling. Cut the existing ductile pipe 2’ outside of the wall to match the Detail B standard. Install a coupling to attach the existing drain pipe with the new drain pipe.

6. As-built sheet C14 Detail B indicates 2 – 10-inch gate valves on the south end of the tank on the exterior. Those valves shall be replaced. The existing valve can may be reused. See the picture of the valve key indicating the approximate depth of excavation that may be encountered.

T. Water line Tie-In connection:

1. A connection between the City of Henderson Waterline and the outgoing waterline between the water tanks and the Las Vegas Bay developed area will be installed.

2. Locate and excavate the pipes per the attached drawing included in these specifications. Location shall be inside the fenced area.

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3. Isolation valve from the City of Henderson is located at the NPS park boundary. COR and USB representatives will coordinate with contractor to indicate the locate and operation of the valve during construction activities.

4. The existing pipes are indicated on the as-built drawings as PVC pipe. Contractor will verify the material type. Any identified differences shall be reported to the CO and

COR.

5. Install Tees and Isolation valves per attached sketches. Pipes are estimated to be 4 to

6 feet apart. Contractor shall field verify location.

6. Fittings, valves and associated pipes shall be cleaned and chlorinated during the installation process. Pipes and site shall be maintained as clean during the installation.

U. All external buried fittings and joint connections shall be thoroughly cleaned, coated and wrapped. See UDACS 3.11.01.A.3 and UDACS Section 3.16. Preference is to have the bolts greased and then entire fitting or valve wrapped in 8 mil polyethylene film, tightly sealed and taped. (AWWA C105).

V. Materials and Equipment: The Contractor shall provide all materials, equipment, and labor required to perform the work described in this specification. All materials and equipment shall be NEW and Contractor furnished from outside the park. A schematic, equipment plans and equipment specifications shall be submitted to the NPS for approval before construction and installation. Follow the included approval submittal process.

Construction shall follow those approved submittals. Submit to the COR for review and approvals.

W. A final inspection and operational testing shall be performed at the site with the COR and a representative of the Lake Mead Utility Systems Branch present.

X. All excess material that has been removed/demolished or was unused shall be disposed of outside of the park boundaries.

Y. Confined space Entry: To ensure a safe working environment when work is required to be performed in confined spaces, in accordance with 29 CFR 1910.146 and 29 CFR 1926.21 (b)(6).

1. The contractor and the staff shall be trained and certified in confined space entry to work in areas that is defined and requires confined space entry. Proof of Certifications and training experience shall be provided to the CO/COR.

2. This procedure is to be followed whenever an employee is required to enter a confined space. The Occupational Safety and Health Administration (OSHA) defines a confined space as a space that:

a. Is large enough and so configured that an employee can bodily enter and perform assigned work; and

b. Has limited or restricted means for entry or exit (for example, tanks, vessels, silos, storage bins, hoppers, vaults, and pits are spaces that have limited means of entry.); and

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c. Is not designed for continuous employee occupancy.

3. All employees required to enter a confined space shall receive training in the nature of the hazards involved, and the precautions that need to be taken. The employee also needs to be instructed in the proper use of protective and emergency equipment.

4. A Permit-Required Confined Space is Defined as: A Permit-Required Confined Space that has one or more of the following characteristics: (1) Contains or has the potential to contain a hazardous atmosphere; (2) contains a material that has the potential for engulfing an entrant (3) has an internal configuration such that an entrant could be trapped or asphyxiated by inwardly converging walls or by a floor which slopes downward and tapers to a smaller cross-section; or (4) contains any other recognized serious safety or health hazard.

5. General Requirements:

a. Any condition making it unsafe to open/remove an entrance cover or tank hatch shall be eliminated before the cover is removed.

b. When entrance covers are opened/removed, the entrance shall be properly guarded to prevent an accidental entrance by a worker and to protect the worker from other hazards space.

c. Before any worker enters the space, the internal atmosphere shall be tested with a calibrated, direct-reading instrument for the following conditions in the order given:

d. Oxygen content (between 19.5 and 23.5%)

e. Flammable gases and vapors (not over 10% of the lower flammable limit);

f. Potential toxic air contaminants (below permissible exposure limit).

g. NOTE: When testing the atmosphere of a Permit-Required Confined Space, oxygen shall always be performed first. Only if an acceptable oxygen test is obtained will other monitoring tests be performed and recorded.

h. Air borne combustible dust at a concentration below the lower flammable limit.

i. All tests must be accurate and must be completed and documented before entry.

j. The space must be free of any hazardous atmosphere whenever a worker is inside.

k. Continuous air ventilation shall be used as follows:

a. A worker shall not enter the space until ventilation has eliminated the hazard.

b. The ventilation shall be directed as to ventilate the immediate areas when a worker is present and shall continue until the worker leaves that area.

c. The air supply for the forced-air ventilation shall come from a clean source and may not increase the hazard in the space.

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l. The confined space atmosphere shall be continually tested to ensure that the air ventilation is preventing the accumulation of a hazardous substance.

m. If a hazardous substance is detected during entry:

a. Each worker shall leave the space immediately.

b. The space shall be evaluated to determine how the atmosphere developed.

c. Measures shall be taken to protect workers during future entry.

n. All necessary equipment used for entry into a confined space shall be provided by the responsible contractor/subcontractor involved and maintained properly.

Workers shall be trained in its proper use. Training shall include, but not be limited to:

a. Testing and monitoring equipment

b. Ventilation equipment

c. Communication equipment

d. Personal Protective Equipment (PPE)

e. Barriers and shields

f. Ladders and scaffolds

g. Rescue and emergency equipment

o. At least one attendant shall be posted outside the permit space into which entry is authorized. Attendant shall be responsible for permit space. The attendant shall be equipped with a cell phone/radio or other communication device to summon assistance in an emergency.

p. When the permit required confined space entry is completed, all possible entrance points must be sealed to preclude unauthorized access.

6. Permit System:

a. First the facilities/contractor entry supervisor must see that the Permit-Required Confined Space entry permit is properly completed. Particular attention must be paid to air monitoring, PPE, ventilation, barriers, and Rescue and Emergency equipment. When the permit is complete, the entry supervisor must sign. The entry supervisor will also print the names of the authorized entrants.

b. The entry supervisor shall confirm that the duties as defined in the OSHA regulation 29 CFR Part 1910.146 shall be clearly known by all entrants, attendants, rescue and emergency personnel, and supervisors.

c. Before any entry, all facilities or contractor personnel involved in the entry shall review the completed Permit-Required Confined Space Entry Permit and sign-in sheet, and shall confirm that all rescue equipment, PPE, and all other confined space requirements are in place.

a. Before any entry, all the facilities or contractor authorized and trained personnel involved in the entry must sign the permit to authorize the entry. By signing they are verifying that the requirements of the permit are met.

b. The completed permit and sign-in sheet shall be posted at the entrance of the space before any entry. All authorized entrants shall confirm that pre-entry preparations have been completed.

c. The duration of the permit shall not exceed the time required to complete the assigned task or job identified on the permit.

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d. The Contractor or Facilities supervisor shall terminate entry and cancel the entry permit when the task is completed, or when a condition that is not allowed on the permit arises.

7. Confined Space Entry Permit:

a. The following points are areas that shall be completed on the Confined Space

Entry Permit:

a. Location of the permit space to be entered.

b. Work to be performed.

c. The schedule start and required finish.

d. Authorized entrants, with method of determining which authorized entrants are inside the permit space (sign-in on the permit)

e. Personnel currently serving as attendants.

f. Individual currently serving as entry supervisor.

g. Prohibited conditions EG. NO SMOKING

h. Hazards of the permit space

i. The measures taken to isolate the permit space and eliminate or control hazards before entry.

j. Acceptable entry conditions including atmospheric monitoring results.

k. Results of initial and periodic tests, with testers signature and time performed.

l. Rescue and emergency contacts, including equipment and phone numbers.

m. Communicating procedures for entrants and attendants to maintain contact during entry.

n. Equipment to be provided for compliance, such as personal protective equipment, communications equipment, alarm systems, and rescue equipment.

o. Any other information necessary

p. Any additional permits issued to authorize work in the permit space, such as hot work permits

b. Note

a. The contractor or facilities entry supervisor shall verify that all safety precautions have been taken prior to signing the permit.

b. The attendant shall reverify the proper PPE as each entrant enters the space.

c. All complete permits shall be forwarded to EH&S for filing and review/auditing of the confined space program.

Z. A daily log shall be prepared by the contractor representing the work that was performed that day.

1. The log shall describe the tasks performed that day and the contractor staff working.

2. 2 or more representative photos of the tasks being performed that day shall be included in each daily log.

3. The submitted daily logs shall be in a PDF format. Emailing to the CO/COR is acceptable.

4. The daily logs shall be sent to the CO/COR once a week. For every week worked in the field, the daily log shall be sent to the CO/COR.

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AA. Contractor shall submit at the end of the installation as-built drawings, sketches, and details of the installation.

1. Details shall indicate the items installed, items revised, or modified.

2. Drawings, sketches, and details shall be transmitted in a PDF format.

3. Photo files shall be transmitted to the CO/COR at the end of construction as a part of the close out procedures. Photo standards are described elsewhere in this document.

4. Three hard copies of the documents shall be provided at the end of the project in addition to the PDF files transmitted. A 3-ring binder is acceptable. The binder shall contain the following information. Delivery to the COR will be part of the project closeout process.

a. Copy of the NDEP approval to construct and approval to operate documentation letters.

b. All water quality testing results that were conducted.

c. Cut sheets of all installed products indicating the manufacture and size.

d. Cut sheets of the installed products indicating the NSF-61 certifications and compliance. Indicate the NSF 61 certifications of all products installed and used.

e. Cut sheets of all the paint products that were applied including the indication of the colors used.

BB. The Contractor shall manage a weekly progress meeting, conference call or Teams meeting between the contractor and the COR or NPS representatives. The need for the meeting shall be determined by the CO/COR and the contractor.

1. A weekly schedule update shall be presented at the meeting. Schedule shall show the previous weeks accomplishments and tasks. The schedule shall show the proposed work schedule for the future two (2) weeks of work. Three (3) weeks of work shall be shown. It should be updated weekly and sent to the COR in a PDF format.

2. Photographs of the work progress shall be taken. Regular submittal of a PDF file showing representative progress photos, or a log of the previous weeks work shall be done weekly.

CC. Other Items related to the Installation:

1. Items shown on the plans may vary in quantity and location. Field verify all items and underground/underwater components.

2. Notify the COR of construction phasing. Close coordination between the NPS and contractor is required to coordinate when down time of the existing water tank is needed. A 3-day notification to the NPS and COR is needed for any shutdown of the water tank or water lines for work. Any shutdown or transfer should occur during the mid-week. Tuesday, Wednesday, or Thursday.

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3. Photos of all connections are to be taken and provided. Photos taken documenting the progress of the construction and the suitability of each connection. This is especially important of any connection, cable connector or piping that will be buried.

a. Photos shall be JPG format.

b. No labels or text shall be placed on the photographs.

c. High resolution photos are preferred.

d. Name or number the photos to represent the task shown in the photo.

e. Photo files shall be transmitted to the CO/COR at the end of construction as a part of the close out procedures.

1.4 ESTIMATED SCOPE OF QUANTITIES

This quantity list may not be complete and accurate. Contractor shall field verify items and adjust their quantities accordingly. This list is included but not limited to:

1. Mobilize to Site

2. NDEP permits assembling and submittal.

3. Porta-potty rental and associated site safety items

4. Cleaning interior of tanks

5. Remove and replace piping and valves.

6. Excavate material to install new door opening.

7. Saw cut concrete wall and install steel door.

8. Install mushroom vent.

9. Excavate and install tie-in pipe connection.

10. Chlorination of the system and components

11. Testing of the water for compliance

12. Superintendent and project management

13. Bonds and insurance

1.5 LOCATION

A. Project Location: Lake Mead near the Las Vegas Bay developed area, Clark County, Nevada; within Lake Mead National Recreation Area (LAKE NRA).

1.6 PERFORMANCE PERIOD: The project schedule is based on calendar days from the "Notice to Proceed" (NTP) date.

A soft NTP will be issued upon receipt of Division 1 submittals to allow purchase of materials.

A second NTP will be issued for On Site Construction work. Work to be started within 30 days of this NTP. The On-Site Construction Period of performance for this task is 180 calendar days.

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1.7 FIELD VERIFICATION

A. The Contractor shall field verify all new and existing dimensions affecting the work in this contract before ordering any materials, equipment, or parts.

1.8 CONTRACTOR'S USE OF PREMISES

A. The site is located in public areas. Security of the equipment shall be maintained during

B. Contractor shall at all times conduct his operations to ensure the least inconvenience to the recreation area visitors and employees.

C. The contractor shall at all times make the job site, laydown area and storage area safe to the public.

1. Traffic control devices shall be used around the active job site.

2. Markings, tape, or barriers shall be used to separate the work area on land from the public.

3. Signs and barriers shall be used if NPS employees need to be kept out of working areas.

D. Preservation of Natural Features: Confine all operations to work limits of the project.

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

E. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for interruption of existing utility service, if appropriate.

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

2. The NPS can assist to locate utilities but the NPS does not know where all of the utilities are located.

3. NPS will provide As-Built drawings of the NPS constructed items in and around this project.

F. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent.

G. Work Limits: The Contractor shall be confined to conduct his work to job site area and work limits as shown on drawings or approved by the Contracting Officer. Contractor shall be responsible to pay for rehabilitation work for any resource damage outside authorized work limits.

H. Care shall be taken to ensure that fuel, oil and other spills do not occur. If spills occur, cleanup will be completed at no additional expense to the Government.

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1.9 HOURS OF OPERATION

A. Hours of operation shall be Monday through Friday between the hours of 7:00 AM and 5:00 PM unless alternate hours are approved by the Contracting Officer and the Contracting Officers Representative (COR). Requests for changes shall be submitted to the COR.

1.10 SPECIAL PROVISIONS

A. Permitting and Fees:

1. The Contractor is responsible for obtaining and paying for all fees and costs for necessary permits and approvals for all construction activities associated with this Project.

2. Permits from the Nevada Division of Environmental Protection are expected to be needed.

3. Permits for Clark County Dust Control may be needed.

4. Scott Bell, Environmental Protection Specialist shall be listed as the owner/operator for all NDEP applications and permits.

5. Prior to beginning site construction, apply for and receive any needed permits and approvals from NDEP. No work shall commence prior to receiving permits and approvals. A copy of the permits and approvals shall be forwarded to the NPS for review. PDF copy emailed to the CO/COR is acceptable.

6. A copy of the permit application package submitted to the governing agencies shall be transmitted to the CO/COR at the time of application. A PDF copy emailed to the CO/COR is acceptable.

7. Contractor shall provide all needed Professional Engineering services for inspections, signatures and closures needed to approve or close out any permit.

8. All testing of the product and water for closeout of the permit shall be included in this proposal.

B. Lake Mead NRA shall not provide an housing, camping locations or RV accommodations for the contractor.

C. Time Constraints:

1. Quiet Hours in the park are from 10:00 PM until 6:00 AM. The Contractor shall not operate equipment or make loud noise between these hours.

2. No work will be performed on weekends or on federal holidays without the advanced, written authorization of the CO.

3. Any request to work outside of normal working days and hours shall be submitted to the CO and COR at least 3 business days before the requested event for authorization.

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D. Park Entry:

1. The contractor shall furnish a list of personnel with phone contact information.

Vehicles associated with the contractor shall be waived entrance fee upon entering in a marked company vehicle or by providing the names of employees entering in personal vehicles. The entrance fee is waived only for the purpose of reporting directly to a specific work location. Any deviation for recreational purposes is subject to payment of required entrance fees.

E. Park Regulations:

1. Ensure all personnel (contractors, subcontractors, and vendors) entering or working in the park are familiar with and obey all park regulations. Law enforcement rangers will intervene if they perceive any unsafe or unlawful activity.

F. Emergency Medical and Accident Reporting:

1. All accidents and incidents shall be reported to the CO and COR.

a. The Contractor or subcontractor shall contact Park Dispatch for any medical emergency or traffic accident occurring within the Park.

Emergency number: Dial 911 as needed.

Park Dispatch: 702-293-8932 EMERGENCY

Park Dispatch is called so that the entrance station will be prepared should any emergency vehicles (e.g. ambulance) need to enter the Park and so that any available Emergency Medical Services personnel in the Park might respond until such time as the ambulance arrives.

b. The Contractor or subcontractor is required to report ANY personal injury and / or property damage incident occurring within the park. This report must be made to a Law Enforcement Ranger at the first available opportunity before leaving the park:

Park Dispatch: 702-293-8998 NON-EMERGENCY

G. Logistics:

1. The public access in the public areas shall always be maintained. NPS Employee access should be maintained to all facilities during construction.

2. The Contractor shall be responsible for the security of all materials staged/stored on LAKE NRA property.

3. The project site is within a chain link fenced area. Contractor may use the interior of the fenced area as their work zone.

H. Environmental Compliance Requirements:

1. The Contractor and all employees working on the Project will be required to take “Desert Tortoise Awareness Training” which will be provided by the Government at no cost to the Contractor. This training will take approximately 30 minutes or less.

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2. The Contractor’s employees shall never handle a desert tortoise.

3. The Contractor and employees shall immediately report the presence of any desert tortoise to the COR.

4. Herbicides shall not be used in or around the Project site.

5. The Contractor shall arrange for needed trainings by contacting the NPS inspection office no less than 5 working days prior to the requested training. Such contact shall provide sufficient time to accommodate scheduling and travel to the site.

6. The environmental compliance contacts for this project are Kelly Wallace, and Matthew D’ambrosi. For questions or additional information, contact the following people via email:

a. Kelly Wallace, Biologist: kelly_wallace@nps.gov

b. Matthew D’ambrosi, Biological Science Technician: matthew_dambrosi@nps.gov

I. Equipment Washing:

1. Equipment washing is required to preclude the introduction and spread of non-native species into the Park. Therefore, all equipment shall be cleaned outside of the Park before entering the Park. Equipment leaving the park for any reason must be re-washed before returning to the job site. Equipment that is moved from the job site, but remains within the original developed area, need not be re-washed prior to returning to the job site. It is also known that there are areas inside the Park that have non-native plants and weed species infestation. Therefore, before equipment can be moved from one developed area to another, it must be washed at the location identified on the Site Plan (see attached site plan and mileage table) to ensure weeds are not spread from one developed area to another.

2. The Contractor shall clean all equipment prior to the equipment entering Lake Mead National Recreation Area. It is recommended that cleaning be accomplished by hot water, pressure washing, using water only. All equipment surfaces shall be cleaned, with special emphasis given to the undercarriage. This includes, but is not limited to:

wheel wells, bumpers, radiator grills, springs, shock absorbers, wire harnesses, skid plates, oil pans, axles, frame ledges, buckets, tracks, belly pans, etc. Cleaning shall also include all dirt and debris inside the cab, or operator area. A Shop-Vac or commercial car wash vacuum system may be used for operator compartments, provided the method used effectively removes all visible debris. Equipment cleaning is for the purpose of removing any seed and soil accumulations to prevent the potential spread of non-native plant and weed species from outside the park to locations inside the park. Cleaning shall be performed in a manner that will reasonably remove all visible soil, plant and other foreign material. All equipment that requires washing shall be inspected by government personnel, or contractors/partners assigned to this duty, to ensure compliance.

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3. Equipment that requires washing is generally defined as track or rubber-tired machinery intended for use primarily off-road. Examples include backhoes, loaders, earthmovers, graders, rollers, bulldozers, water trucks, etc; or four wheel drive or passenger vehicles that are driven in off road areas. Equipment may also be stationary, such as a material screening plant, conex storage containers, or a mobile office (mobile offices may be cleaned in the same manner as operator compartments as outlined in paragraph 2). The equipment is generally under the direct control of the contractor or sub-contractors, is likely to remain on the construction site for an extended period of time, and may contain adhered soil and seed from other project sites.

4. Equipment/Vehicles that do not require washing are defined as those normally used for highway driving only, and travel primarily on paved surfaces and well maintained service roads and parking areas (this includes approved staging areas). Examples include semi-tractor trailers, dump trucks, concrete trucks, pickup trucks, fuel trucks, service trucks, etc. These delivery and passenger vehicles are generally not under the direct control of the contractor, have no earth-moving function, and do not remain on the project site. These vehicles have a low probability of carrying adhered soil and seed from other projects. However, every vehicle and piece of equipment is subject to rejection from entering the park if there are obvious signs (covered in mud, plant material adhered to it, etc.) that it could be transporting non-native species into the Park.

J. Post Equipment Washing Inspections:

1. All equipment subject to inspection will be inspected by government, or other authorized personnel prior to leaving the paved surface or designated washing area identified on the Site Plan. Equipment determined to be free of soil or mud based on visual examination by government personnel will be cleared to enter the project area, or proceed to other areas of the park as appropriate. The Contractor shall arrange for needed inspections by contacting the NPS inspection office no less than 5 working days prior to the inspection. Such contact shall provide sufficient time to accommodate scheduling and travel to the site. Equipment not passing initial inspection must be rewashed outside the park at no additional expense to the government.

2. A list of government Inspectors for this project will be provided by the list below.

Please contact via email all members and coordinate designated representative for inspection:

a. Clayton Merrill, Biological Science Technician: clayton_merrill@nps.gov

b. Kelly Wallace, Biologist: kelly_wallace@nps.gov

c. Matthew D’ambrosi, Biological Science Technician: matthew_dambrosi@nps.gov

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1.11 DESIGNATED OFFICIALS

A. The NPS Project Manager (PM) and Contracting Officer's Representative (COR) will be:

Carl Bush PE, Lake Mead NRA Telephone: 702-859-0194 (cell) E-mail: carl_bush@nps.gov

B. The Contracting Officer (CO) will be:

END OF SECTION 01010

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LAKE MEAD NATIONAL RECREATION AREA

FIGURE 1

Project Site

Lake Mead Maintenance Building

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LAKE MEAD NRA DISTANCE CHART

FIGURE 2

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LAS VEGAS BAY SITE MAP

FIGURE 3

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CALLVILLE BAY SITE MAP

FIGURE 4

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FIGURE 5

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SECTION 01270 DEFINITION OF BID ITEMS

1.1 DESCRIPTION

A. The intent of this section is to explain, in general, what is and what is not included in a bid item, and the limits or cut-off points where one bid item ends, and another begins.

B. If no bid item exists for a portion of the work, include the costs in a related bid item.

1.2 LIST OF ANTICIPATED BID ITEMS

A. BID ITEM No. 01 – Recoat Interior of Las Vegas Bay Raw Water Tank, as specified.

1. UNIT – lump sum

2. DEFINITION – Unit price includes all necessary labor, materials, and equipment to install the additional components to the concrete water tank. Work also includes but is not limited to: draining the tank, cleaning the interior of the tank, permitting, testing, pipe and valve replacement, cutting and installing a new door, mobilization/demobilization. All removed/demolished equipment and materials shall be transported and legally disposed of off-site.

END OF SECTION 01270

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SECTION 01310 PROJECT MANAGEMENT AND COORDINATION

1.1 SUMMARY

A. This Section includes administrative provisions for coordinating construction operations on this project including, but not limited to the following:

1. Supervisory and administrative personnel.

2. Project meetings.

3. Coordination procedures.

1.2 SUPERVISORY AND ADMINISTRATIVE PERSONNEL

A. General: In addition to the project superintendent, the Contractor shall provide other supervisory and administrative personnel as required for proper work performance. This may include special personnel required for coordination of operations with subcontractors and material suppliers.

B. Staff roster:

1. Within 14 days after the NTP, the Contractor shall submit a list of staff assignments, including subcontractor personnel (if applicable), working at the job site. Identify each individual and their duties and responsibilities.

1.3 PROJECT MEETINGS

A. Submittals required prior to the Preconstruction Conference.

1. Letter designating the Project Superintendent.

2. Proposed construction schedule.

3. Schedule of values.

4. Accident prevention plan.

5. Site health & safety plan.

6. A list of Subcontractors for this project.

7. Written statements from subcontractors certifying compliance with applicable labor standard clauses.

8. Satisfactory evidence of liability insurance coverage and workman’s compensation for the Contactor and all subcontractors.

9. Waste and recycling plan.

B. Preconstruction Conference: Once the contract is awarded, an initial orientation meeting will be scheduled for a time and date that is agreeable to the Government and Contractor

LAKE 233763 Page 27 of 81 and will be conducted in the Lake Mead Maintenance Building. Lake Mead personnel will be present to go over park specific requirements of the project with the Contractor and the Contractor’s supervisory and administrative team. The Notice to Proceed date will also be established at the Preconstruction Conference.

1. Agenda: Items to be discussed will include but not be limited to:

1. Park Rules and Regulations.

2. General correspondence procedures.

3. Labor standards provisions.

4. Payroll reports.

5. Payments to the Contractor.

6. Acceptance/rejection of work.

7. Progress Meetings.

8. Subcontractors.

9. Documents required under contract.

10. Local emergency phone number.

11. Specifications and drawings.

2. Once the Notice to Proceed date has been established, the Contractor shall submit the proposed work schedule to the Government for approval.

1.4 COORDINATION PROCEDURES

A. Coordination: Coordinate the construction operations identified in the various Sections of this Specification to ensure the efficient installation of all materials and equipment.

1. Schedule construction operations in the proper sequence required to obtain the best results where installation of one part of the Work depends on installation of other components before or after its own installation.

2. Coordinate installation of different components with subcontractors and Government personnel to ensure maximum accessibility for required maintenance, service, and repair.

3. Make adequate provisions to accommodate items scheduled for later installation.

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1.5 INSTALLATION SCHEDULE REQUIREMENT

A. Installation Baseline Schedule: Prepare Installation Baseline Schedule using computerized scheduling software.

1. Installation Baseline Schedule shall show submittal review, installation start date, work activities / staff resources, activity durations, major milestones, inspection dates, closeout activities, and project end date.

2. Establish procedures for updating Installation Baseline Schedule and for reporting progress. Coordinate procedures with progress meeting and payment request dates.

3. Contracting Officer may request an updated Installation Schedule at any time to confirm progress of the work.

1.6 SCHEDULE OF VALUES

A. Submit a schedule of dollar values based on the Contract Bid Schedule. Include bond costs, mobilization, general condition costs, overhead, and profit in the total dollar value of unit price items and in the component parts of Work for each lump-sum item as described below. Do not include general condition costs, overhead, or profit as separate items;

however, payment for bond premiums can be made based upon evidence of payment to the surety. Bond premiums may be shown as a separate item.

B. Break down each lump sum Bid Item into component parts of Work for which progress payments may be requested. The total costs for the component parts of work shall equal the bid amount for the lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values.

C. The total cost of all items shall equal the contract total, or 100%. The Schedule of Values will form the basis for progress payments. Each progress payment request shall include the overall percentage complete to that date.

END OF SECTION 01310

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SECTION 01330 SUBMITTALS

A. The intent of this section is to explain submittal requirements before and during

B. This section also includes the requirements for properly handling "Substitutions" and

"Comparable Products" the Contractor submits as being "equal" to the product that has been specified.

1.2 SUBMITTAL AND APPROVAL PROCEEDURES

A. All submittals shall be transmitted to the COR, as original and three (3) copies, using National Park Service form CM-16, dated 4/00.

1. A copy of the form is included at the end of this Section.

2. No action will be taken on a submittal unless it is accompanied by a transmittal form.

3. All submittals shall be carefully reviewed by the Contractor prior to submission to the

Government to eliminate errors.

B. Content of the RFI or Submittal: Include a detailed, legible description of item needing information or interpretation and the following:

1. RFI/Submittal number, numbered sequentially.

2. Date.

3. RFI subject.

4. Specification Section number and title and related paragraphs, as appropriate.

5. Drawing…