Attachment 71_Exhibit_M-1_M-2_Weather_Guidelines.pdf
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- Attached to
- Malheur NF Tree Planting Federal contract opportunity
- Solicitation number
- 1240BK26R0003
- Issued by
- Department of Agriculture Forest Service
About this file
This document is Section J (Exhibits) from contract R6-4-00-04, containing weather guidelines for tree planting operations.
Exhibit M-1 provides weather guidelines for planting Douglas-fir, specifying maximum allowable wind velocity based on air temperature and wet bulb depression combinations. The guidelines indicate that planting should proceed when wind velocity is less than 20 MPH, with specific wind speed restrictions varying by temperature and humidity conditions. The example provided shows an air temperature of 80°F, wet bulb depression of 7°F, and maximum constant wind speed of 9 MPH. Exhibit M-2 presents parallel weather guidelines for planting Ponderosa Pine, with similar parameters but different numerical thresholds. The Ponderosa Pine guidelines show an example of 68°F air temperature, 14°F wet bulb depression, and maximum constant wind speed of 14 MPH. Both exhibits include a notation that planting should not occur regardless of wind velocity under certain conditions. These guidelines appear to establish performance standards for tree planting work by specifying acceptable environmental conditions to ensure successful seedling establishment and contractor performance.
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Text version
R6-4-00-04 Page II
Section J
EXHIBITS
Exhibit M·l Weather Guidelines for Planting Douglas-fir •••••:tmum AlIow'b •• Wind Velocity 'Of • given AJrTemper••.ure - Wwt &vtb ~Ion ComWn.etkM'I
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