B08_-_SOW_NSEW_Hazard_Pruning.docx

NATIONAL MALL AND MEMORIAL PARKS

Fy-25 North & South Elm Walks Scope of Work

NSEW Hazard Mitigation Pruning fy-25

PART 1: GENERAL

1.1 PROJECT DESCRIPTION:

1. The contractor shall provide all labor, supervision, materials, tools, supplies, transportation, barricades, signs, traffic control measures/coordination and equipment incidental to and necessary to execute safe full spectrum pruning operations in accordance with industry standards and best management practices (BMPs). The area of operations shall be as follows:

Area of Operation:

1.2 SCOPE OF WORK:

TASK 1: Prune all live trees in Areas of Operation to meet the specifications listed in this Scope of Work (SOW):

a. Crown raise (elevate): 10' from sidewalk surface; 8' from mowed grass. Remove descending portions encroaching into public areas that originate below 18' from grade. Crown raise 8” dbh trees and smaller to 4’ from grade.

b. Maintenance Prune: Maintenance pruning shall consist of crown cleaning to remove all deadwood 1.5 inches or larger at their point of attachment. Diseased limbs and/or structurally compromised portions shall be removed or treated at the discretion of the arborist. Crown thinning not to exceed 5% of growth.

c. Crown reduction: Weight reduction of over-extended limbs and portions beyond limb wood or trunk wood with compromised structural integrity.

d. Create 6' halo around overhead lights and traffic control devices, 8' clearance from statues, structures, flags, and flag poles.

e. Hazard Prune shall consist of the removal of all dead or dangerous limbs 1.5 inches or greater in diameter at their point of attachment. Large masses of smaller dead limbs which significantly detract from the tree’s aesthetics shall be removed.

Technical Requirements:

a. No live wood over 3 inches in diameter shall be cut when not absolutely necessary to reach the pruning objective.

b. No live wood over 6 inches in diameter shall be cut without prior coordination and approval from the NAMA staff Arborist.

c. All pruning and tree care operations are to be conducted in accordance with the most recent version of the American National Standards Institute ANSI A300 standard for maintenance pruning or hazard pruning. All ANSI Z133 standards shall be met at all times.

1.3 PERIOD OF PERFORMANCE:

Begin operations September 30, 2025. Period of performance expires February 10, 2026. Workflow should continue until complete (NPS duty days, only).

1.4 PROTECTION OF GOVERNMENT PROPERTY:

1. The Contractor shall assume full liability and responsibility for any loss or damage to Government property caused by his operations and shall assume full responsibility for any and all damages or claims for damage for injury to persons, property or equipment which might result from any service performed under this contract. The Contractor shall be responsible for the repair or replacement of all damaged government property caused by his operations.

2. Tree and Turf Protection: All motorized and non-motorized equipment used shall be conveyed and staged on industry appropriate turf protection mats (e.g. Alturna mats, Trak-Mats, ½” plywood, etc.) designed for the purpose of protecting soil, turf and Critical Root Zones (CRZ’s) when operating off of paved surfaces. At no time shall motor vehicles or heavy equipment be in direct contact with soil, turf or critical root zones. At no time shall “over-the-road” DOT tires be in direct contact with soil, turf, or critical root zones. Extra wide, low PSI "floatation tires" made for the purpose are exempt (e.g. golf carts, ATV’s)

1.5 PERMITS AND RESPONSIBILITIES:

1. The contractor shall, without additional expense to the Government, be responsible for obtaining and renewing all necessary licenses and permits.

2. The contractor shall be responsible for all damages to persons or property that occur as a result of the contractor’s negligence and shall take proper safety and health precautions to protect the work, the workers, the public and the property of others.

3. The contractor shall be responsible for all materials delivered and work performed until completion and acceptance of the entire work.

1.6 ON-SITE SUPERVISOR:

1. As a minimum, the contractor must provide one on-site supervisor to direct all contract personnel and maintenance operations.

2. The on-site supervisor shall be fluent in the English language in order to effectively communicate with the contractor’s employees and/or subcontractors as well as the COR and other Government personnel.

3. If the on-site supervisor is not present or otherwise absent, the contractor shall provide an alternate supervisor to manage and direct all contract personnel and operations. The alternate supervisor shall possess the same qualifications as the on-site supervisor.

4. The onsite supervisor shall be available for phone calls during all working hours.

5. A current ISA Certified Arborist shall be on the job site at all times and shall be the primary contact with the Government's technical representative responsible for controlling the quality of work and inspecting all completed work in order to ensure that contract performance requirements are met. The contractor shall provide the arborist’s certification ID for verification before work begins, and any time there is a change in the onsite arborist. Certification and currency will be subject to verification by the government utilizing the ISA database.

1.7 CONDUCT:

1. The contractor’s employees shall, at all times while on the job site, whether on or off duty, conduct themselves in a professional, orderly and safe manner. Rudeness, fighting, being under the influence of alcohol and/or drugs or bringing and/or consuming alcohol and/or drugs, gambling, soliciting, stealing, and any immoral or otherwise undesirable conduct shall not be permitted on the job site and shall result in immediate and permanent removal from the job site of any employee engaging in such conduct.

2.1 SITE MAINTENANCE:

1. The contractor shall maintain the work site in a safe, neat and orderly manner. All supplies and equipment on the project site shall be stored to preclude any damage.

2. Limited space may be provided for the storage of materials, which shall be stored in a clean and neat condition as approved by the COR. This is not guaranteed, thus the contractor must be prepared to transit the entire operational footprint daily.

3. All mud, dirt, debris, foreign objects or spills of any kind from the contractor’s operations shall be cleaned up daily or as requested by the COR.

4. All contractor generated refuse and waste shall be hauled from the work site daily. Refuse and waste material shall be hauled in trucks with tight fitting covers to prevent spillage on roadways.

5. It shall be the contractor’s responsibility to take whatever measures are necessary to assure the protection of the Government assets and to perform the work so as to cause minimal disruption of ongoing activities near occupied areas.

6. The contractor assumes the risk and responsibility for the loss or damage to the Government furnished property.

7. Any/all turf protection mats shall be removed from turf nightly. No mats to remain on soil/turf overnight.

2.2 ENVIRONMENTAL CONCERNS AND SAFETY STANDARDS:

1. The contractor and each of his employees shall work in compliance with all applicable OSHA, Federal, state and local safety laws and regulations (e.g. CFR29, etc).

2. The contractor will be in compliance with ANSI Z133.1 standards.

3. The contractor shall provide and ensure that all personnel at the work site use the proper Personal Protective Equipment (PPE) required by OSHA regulations and ANSI standards.

4. The contractor shall take all necessary precautions for safety and shall provide reasonable protection to prevent damage, injury or loss to persons, properties, equipment and vehicles.

5. In the event of an emergency the contractor should first call 911. For other nonemergency issues requiring a law enforcement officer, the US Park Police watch desk may be reached at (202) 438-1617.

6. Damage caused by the contractor to any properties shall be repaired or replaced to the satisfaction of the Government at the expense of the contractor. The Government, at its sole direction, may elect to repair or replace the damaged property, and deduct such costs from monies due the contractor.

7. The contractor shall not leave any tools, parts and/or supplies unattended in the public area at any time while performing work.

8. The contractor shall report damage caused to US Government trees or landscape immediately to the COR or NAMA staff Arborist.

2.3 VEHICLE OPERATIONS

Contractor personnel operating motor vehicles used in performance of this contract shall have a valid state operator’s license and shall operate all motor vehicles in accordance with applicable laws. The contractor’s vehicles shall have an identification tag clearly visible while on site.

3.1 QUALITY ASSURANCE:

1. When the contractor considers work is acceptable to the Government and complete, the contractor shall inform the COR that the work is complete and ready for inspection. The COR will inspect the work on-site in consultation with the staff arborist. In the event that the work is not acceptable, the contractor shall record a list of items noted by the Government to be corrected. A subsequent inspection may take place in order to review the corrected items.

Upon completion, the contractor shall provide the government with a work/treatment log denoting the work performed by specimen. The work log shall utilize standard industry terms and include any tree health or hazard concerns noted during work performance. Contractor work log entries will be used to build historical tree health data archives and better inform urban forest management decisions within the park.

The Contractor shall submit all invoices through www.ipp.gov within 30 days of work performed or on a monthly basis. All Invoices will have the work performed broken out on them along with the location site clearly defined. Failure of the contractor to upload an attached copy of the invoice and any requested documentation through IPP.gov will result in invoice being rejected.

PART 4: BUSINESS HOURS

4.1 BUSINESS HOURS

1. The contractor is responsible for conducting routine services, between the hours of 7:00 a.m. – 3:30 p.m. ET Monday thru Friday, except when the Government facility is closed due to local or national emergencies, administrative closings, or similar Government directed facility closings. The contractor will not be reimbursed when the government facility is closed for the above reasons unless emergency services are requested.

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