Contractor_Q_A_-_NISI_Tree_Work_0001.pdf
PDF 62 KB Posted
- Attached to
- Tree Work for NPS, Ninety-Six NHS
- Solicitation number
- 140P5126Q0048
About this file
This is a Questions and Answers document for Solicitation 140P5126Q0048, a tree work contract for the National Park Service at Ninety-Six National Historic Site.
The Q&A addresses five key inquiries regarding contract execution. First, required licenses are referenced in Section 5 ("Contractor Qualifications") of the scope of work. Second, an ISA-certified arborist who is a full-time employee of an awarded subcontractor satisfies the full-time employee requirement in Section 5.6, rather than requiring direct employment by the prime contractor. Third, while seasonal removal restrictions apply to non-hazard tree removals during bat pupping season (May 1–July 15), winter torpor period (December 15–March 31), and temperatures at or below 40°F, all 21 trees scheduled for removal may be removed outside these restrictions; however, contractors should make best efforts to adhere to the restrictions. Fourth, the contractor is responsible for providing a work schedule to the Contracting Officer's Representative (COR), who will coordinate archaeological clearance with the park archaeologist—typical clearance is accomplished within two weeks with advance notice. Fifth, trees will not be physically marked; instead, each tree is identified by individual ID numbers corresponding to a data sheet and tree maps with GIS coordinates (accurate to approximately 15 feet), tree characteristics (size, species, defects), and supplementary notes to facilitate identification. The government expects that clarification may be needed for 15 percent or fewer of the trees, and contractors unable to accurately identify trees using this information are not considered qualified for the work.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Sol_140P5126Q0048_Amd_0001.pdf | ||
| Tree_List_NISI_Tree_Work.xlsx | XLSX spreadsheet | |
| Sol_140P5126Q0048.pdf | ||
| SOW_NISI_Tree_Work.pdf | ||
| Tree_Map_NISI_Tree_Work.pdf | ||
| Wage_Determination_-_Ninety_Six__South_Carolina_-_Greenwood_County.pdf |
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Q&A
Tree Work for NPS, Ninety-Six National Historic Site
Solicitation: 140P5126Q0048
1. What licenses are required for this job?
Response: Please review scope of work, section 5, “Contractor Qualifications”.
2. Full-Time Employee Requirement for Certified Arborist (Section 5.6):
Section 5.6 states that the Arborist assigned to this contract shall be a full-time employee of the Contractor, and that independent consultants retained by the Contractor do not meet this criterion. If the awardee subcontracts performance of the work to a tree service subcontractor, does an ISA-certified Arborist who is a full-time employee of that named subcontractor satisfy this requirement, or must the Arborist be a direct employee of the prime awardee?
Response: ISA certified arborist who is full time employee of subcontractor awarded the work meets this requirement.
3. Seasonal Removal Restrictions vs. Performance Schedule (Section 3.4):
Section 3.4 restricts non-hazard tree removal during the bat pupping season (May 1 to July 15), the winter torpor period (December 15 to March 31), and when temperatures are 40°F or below. Of the 21 trees scheduled for removal, how many are designated as safety hazards (and therefore exempt from this restriction) versus non-hazard removals subject to the seasonal restriction? This affects our scheduling approach within the 9-month period of performance.
Response: All trees scheduled for removal can be removed outside of the seasonal restrictions (at any time and as soon as possible). However, efforts should be made to adhere to the seasonal restrictions to the fullest extent possible.
4. Archaeological Clearance Timeline for Excavation Work (Section 4.6.1):
Section 4.6.1 requires park archeologist clearance before any excavation-related work, which would include stump grinding. What is the typical timeline for this clearance, and is scheduling this clearance the responsibility of the Government prior to notice to proceed, or the Contractor's responsibility to initiate after award?
Response: Contractor will provide work schedule to COR, and COR will coordinate scheduling with park archeologist. We’re typically able to accommodate this type of work within two weeks, but as much advance notice as possible is always appreciated.
5. Will Trees be marked prior to performance of work-they were not marked at all during site visit making estimation very difficult? GPS is not 100% up to 15ft. We cannot be responsible for miss-identified trees during performance of work due to not being Cleary marked.
Response: Trees will not be marked.
Each tree is identified by an individual ID number that corresponds to the details provided in the data sheet (tree list) and tree maps. The tree list includes the GIS coordinates as well characteristics to aid in tree identification such as size, species, issue/defect, and in many cases additional notes to aid in tree identification. The data points were collected in survey 123, and as noted in the question are generally accurate to around 15’ +/-. When viewing the tree list it's important to open it in excel and make sure that the coordinates columns are extended to show the full length of the numerical data. Cutting off a digit or two from the coordinates information can reduce the accuracy significantly.
The information provided is sufficient for a trained and experienced arborist to locate the trees. Locating the trees on site using the GIS coordinates has proven to be an effective means to efficiently expedite tree location and ensure that work is being performed on the correct tree. Park personnel/COR are available to help provide clarification if there are any questions while on site. However, based upon past experience in executing identical contracts, park expectation is that clarification or field guidance may be needed on 15% or less of the trees covered by this contract. If a contractor cannot ensure that they are not performing work on the incorrect trees (ie, healthy trees without structural defects or significant maintenance pruning needs), then the contractor is not qualified to perform this work.
File details come from the government source that posted it. Updated .