with the information provided I need to create a performance work statement: for Tree Removal and Stump Removal.

Through market research it was determined the following position were required for tree removal and stump grounding.

•	Project Manager
•	Certified Arborist
•	Tree Climber
•	Ground Crew
•	Stump Grinder

Based on the department of Labor’s wage data for Fort Bragg NC. The following was determined to suffice work efficiently.
•	Project Manager: 1 full-time employee. 250 Hours per year. $35.29/hour
•	Certified Arborist: 1 full-time employee. 250 Hours per year. $25.68/hour
•	Tree Climber: 2 full-time employees. 250 Hours per year.  $20.60/hour
•	Ground Crew: 2 full-time employees. 250 Hours per year. $15.92/hour
•	Stump Grinder: 1 full-time employee. 250 Hours per year. $19.00/hour

Scope: 
The scope is projected for 50 work orders per year. I calculated the following factors into consideration to do one work order per week. totaling 50 weeks vs 52 weeks of traditional FTE
Factors to consider:
•	Tree size and location - The size and location of the tree affect the cost of its removal. A larger tree or one located in a difficult-to-reach area will require more equipment and labor, thus increasing the overall cost.

•	Species of tree - Different tree species have different densities, which impact the time and effort required to remove them. Certain species may also require special equipment, increasing the cost of removal.

•	Stump size and location - Similarly to trees, stump size and location play a significant role in determining the cost. A larger stump or one located in a hard-to-reach spot will require additional effort and equipment, leading to higher costs.

•	Access to the site - The accessibility of the work site also influences costs, as equipment and labor may need to navigate obstacles such as buildings, fences, or uneven terrain, and the cost for this may vary. 

•	Safety considerations - The safety of the workers and the site must be taken into consideration. Depending on the nature of the job or location, additional safety equipment or protocols could be necessary, which can add to the overall cost of the project. 

•	Additional services - If additional services are required or requested, such as hauling away debris or grinding the stump, they will also increase the cost of removal.

Other factors to consider include:
1.	Equipment: (number of units)
 
•If the equipment is rented or needs to be repaired, this will add to the overall cost.
*This does not include any additional costs such as equipment rental or disposal fees.



2.	Miscellaneous: (number of units)
 :
3.	Parts: (number of units)
 

By taking these factors into account we can prepare a more accurate and comprehensive independent cost estimate for tree removal and stump grinding in Fort Bragg. See Excel IGE Tree removal, stump removal. 

Replacement Parts 

The frequency of replacement or repair for each part of a stump grinder can vary depending on several factors, such as the frequency of use, maintenance routine, and the quality of the part. Below is an approximate frequency of replacement or repair for each part:

1. Cutting Teeth: Stump grinder cutting teeth need to be replaced every 8 to 10 hours of use, depending on the hardness of the material being ground.

2. Belts: The belts on the stump grinder should be inspected every 50 hours of use, and replaced as necessary when they are worn, damaged, or misaligned.

3. Bearings: Bearings should be inspected every 100 hours of use, and replaced as necessary when they are worn, damaged, or not functioning correctly.

4. Hydraulic Hoses: Hydraulic hoses should be inspected every 200 hours of use, and replaced as necessary when they are leaking or damaged.

5. Engines: The engines on stump grinders typically last several years with proper maintenance, but can require replacement if they are damaged or worn out.

6. Filters: Stump grinder filters should be replaced according to the manufacturer’s recommendations or at least once per year.

7. Grease and Oil: The grease and oil on a stump grinder should be changed according to the manufacturer’s recommendations or at least once per year.

8. Other Components: The frequency of replacement or repair for other components such as wheels, axles, frame, and cutting head varies depending on the quality of the parts, the frequency of use, and the condition of the stump grinder.

It’s important to note that the above frequencies of replacement or repair are only estimated guidelines, and the actual frequency of replacement or repair for each part may vary depending on various factors such as location, usage, maintenance, and the quality of the parts.

Then 

Based on the frequency of replacement or repair provided earlier, the average cost of each item over time is:

1. Cutting Teeth: If you replace cutting teeth every 10 hours, you may need to replace them 36 times per year (approximately). This makes the yearly cost of cutting teeth $144 to $432 per year, based on the cost per tooth of $4 to $12.

2. Belts: If you replace belts every 50 hours of use, you may need to replace them 4 to 6 times per year (approximately), depending on the frequency of use. This makes the yearly cost of belts $60 to $300 per year, based on the cost per belt of $15 to $50.

3. Bearings: If you replace bearings every 100 hours of use, you may need to replace them 2 to 4 times per year (approximately), depending on the frequency of use. This makes the yearly cost of bearings $40 to $100 per year, based on the cost per bearing of $10 to $25.

4. Hydraulic Hoses: If you replace hydraulic hoses every 200 hours of use, you may need to replace them once or twice per year (approximately), depending on the frequency of use. This makes the yearly cost of hydraulic hoses $50 to $200 per year, based on the cost per foot of $25 to $50.

5. Engines: The cost of replacing an engine can vary greatly depending on the brand, horsepower, and type of engine needed. It is an infrequent replacement, typically every few years with proper maintenance, and can cost anywhere between $700 to $2000+.

6. Filters: If you replace filters at least once a year, the yearly cost of filters will range from $5 to $20 per year, based on the cost per filter.

7. Grease and Oil: The cost of grease and oil varies depending on the brand and quality. If you change the grease and oil at least once a year, the yearly cost of grease and oil will range from $5 to $20 per year, based on the cost per quart.

8. Other Components: The cost of other components such as wheels, axles, frame, and cutting head vary greatly depending on the quality and frequency of use.

**It’s important to note that the above costs are average estimates for each item based on the frequency of replacement or repair given earlier. The actual costs of replacing or repairing each item may vary depending on various factors such as location, usage, maintenance, and the quality of parts.

1. Wheels: Since the wheels of a stump grinder are generally sturdy and durable, they often do not require replacement each year. However, putting an average lifespan of 5 to 10 years based on usage, the yearly cost for each wheel can range from $5 to $30, based on the average cost of $50 to $150 per wheel.

2. Axles: Like wheels, axles have an average lifespan of 5 to 10 years based on usage, and replacement may not be required each year. Therefore, the yearly cost of an axle could range between $5 to $30, based on an average cost of $50 to $150 per axle.

3. Frame: The frame of a stump grinder has a longer lifespan and does not require replacement unless it is severely damaged. Based on an average lifespan of 10 to 15 years, the yearly cost of the frame could range between $20 to $80, based on an average cost of $300 to $800 per frame.

4. Cutting Head: The frequency of replacement for a stump grinder’s cutting head is highly dependent on the frequency of use, hardness of ground surface, and maintenance routine. Based on an average lifespan of 3 to 4 years with proper maintenance and use, the yearly cost of a cutting head could range between $88 to $267, based on an average cost of $350 to $800 per cutting head.

It’s important to note that the above estimated costs are only for general guidance, and the actual cost of replacement or repair may vary depending on various factors such as location, usage, maintenance, and the quality of parts.

Here is a list of common chainsaw parts that may need to be repaired or replaced, along with their average national price and the approximate frequency of replacement per year:

1. Spark Plug - $5 - $10, replaced 1-2 times per year
2. Air Filter - $5 - $15, replaced 1-2 times per year
3. Fuel Filter - $2 - $5, replaced 1-2 times per year
4. Carburetor - $30 - $50, replaced every 3-5 years
5. Guide Bar - $20 - $50, replaced every 1-3 years
6. Chain - $15 - $25, replaced every 1-3 years
7. Starter Rope - $5 - $10, replaced every 1-2 years
8. Ignition Coil - $25 - $50, replaced every 5-7 years
9. Muffler - $20 - $40, replaced every 5-7 years
10. Clutch - $20 - $40, replaced every 3-5 years.

Note that the frequency of replacement of each part may vary depending on factors such as usage frequency and intensity, the quality of the parts, and environmental conditions.

To estimate the approximate annual cost of replacing these common parts, you can multiply the average national cost by the frequency of replacement per year for each part. For example, the approximate annual cost of replacing the spark plug would be $5-$10 x 2 (times per year) = $10-$20 per year.

It’s important to keep in mind that this is just an estimate, and your actual costs may vary based on your individual chainsaw usage and maintenance needs. By regularly inspecting and maintaining your chainsaw, you may be able to extend the lifespan of certain parts and reduce the frequency of repairs and replacement.





Then 
For two chainsaws is 
-Spark Plug - $5 - $10, replaced 1-2 times per year - cost per year (two chainsaws): $20 –-$40
-Air Filter $5 - $15, replaced 1-2 times per year - cost per year (two chainsaws): $20 - $60-
-Fuel Filter - $2 - $5, replaced 1-2 times per year - cost per year (two chainsaws): $8 - $20
-Carburetor - $30 - $50, replaced every 3-5 years - cost per year (two chainsaws): $12 - $34
-Guide Bar - $20 - $50, replaced every 1-3 years - cost per year (two chainsaws): $14 - $66
-Chain - $15 - $25, replaced every 1-3 years - cost per year (two chainsaws): $10 - $50
-Starter Rope - $5 - $10, replaced every 1-2 years - cost per year (two chainsaws): $6 - $10
-Ignition Coil - $25 - $50, replaced every 5-7 years - cost per year (two chainsaws): $7 - $20
-Muffler - $20 - $40, replaced every 5-7 years - cost per year (two chainsaws): $5.8 - $16
-Clutch - $20 - $40, replaced every 3-5 years - cost per year (two chainsaws): $8 - $26.

The total cost of common parts for two chainsaws per year would be approximately $352. Again, keep in mind that these estimates are based on moderate usage and may vary based on your specific chainsaw models and maintenance practices.

Going forward I was able to get the following list of parts per mechanical item on a annual cost basis 
Truck Mounted Crane:
- Hydraulic Pumps: $100
- Cylinders: $200
- Boom cables: $45
- Control switches: $15
- Hoses: $80
- Outriggers and pads: $200
- Safety devices: $60

Total annual cost: $700



Excavator:
- Track chains and rollers: $500
- Hydraulic hoses and cylinders: $400
- Engine and fuel filters: $70
- Bucket teeth and cutting edges: $120
- Swing bearings and gears: $700
- Radiator and cooling fan: $200
- Electrical system components: $150

Total annual cost: $2,140


Dump Truck:
- Tires and rims: $2,000
- Brake pads and shoes: $400
- Suspension system components: $1,500
- Hydraulic cylinders and hoses: $800
- Drive shafts and u-joints: $300
- Electrical wiring and lights: $100
- Frame and body parts: $500

Total annual cost: $5,600









Trailer (two units):
- Tires and axles: $4,000
- Brakes and electrical wiring: $600
- Suspension system components: $3,000
- Floorboards and decking: $200
- Lights and reflectors: $40
- Hitch and coupler parts: $150
- Wheel bearings and seals: $40

Total annual cost: $8,030


Backpack Blower (two units):
- Spark plug: $20
- Air filter: $30
- Fuel lines and filter: $20
- Ignition coil: $100
- Carburetors rebuild kit: $40
- Fan blades and housing: $60
- Starter rope and grip: $10

Total annual cost: $280










Truck (three units):
- Brakes and brake pads: $1,500
- Tires and rims: $9,000
- Transmission fluid and filter: $600
- Engine oil and filter: $90
- Fuel pump and injectors: $3,000
- Radiator and fan: $3,000
- Starter and alternator: $1,500

Total annual cost: $19,690


Wood Chipper:
- Blades and knives: $200
- Anvil or cutting disk: $1,000
- Belts and pulleys: $100
- Hydraulic hoses and cylinders: $1,500
- Engine oil and filters: $50
- Electrical system components: $150
- Safety devices: $300

Total annual cost: $3,300

Note that these estimates are for reference purposes only and can vary depending on the quality of the parts, maintenance schedule, and usage of the equipment. It’s best to follow the manufacturer’s recommendations and consult with a certified mechanic to determine the appropriate replacement schedule for each part.