A04_Detailed_Specifications.docx

DETAILED SPECIFICATIONS

HERBICIDE APPLICATION

2024 Boulder Valley & Lime Weed Treatment

1. Target Species: Medusahead and Ventenata Additional noxious weed species found within the designated contract boundary, and susceptible to chemical intended for use, will also be treated.

2. Treatment Area: 3,106 acres including up to approximately 25 acres of streams/have the potential for water present and will require the use of both aquatic herbicide and adjuvant. Treatment areas vary in the amount of noxious weeds that are within the polygon. Actual weed treatments will be less than that of the treatment area itself.

3. Location of Work Site: There are 2 project areas in total: Boulder Valley (2940 acres) and Lime Mountain (166 acres). Boulder valley is located approximately 25 miles north of Elko, NV in the Santa Renia Mountains; the legal description is: T37N R49E and T37N R50E. Lime Mountain is located approximately 20 miles north of Tuscarora, NV in the Bull Run Mountains; the legal description is T43N and R51E.

Access to Work Site: Public or private access roads damaged by the Contractor shall be restored, at the Contractor’s expense, to the same condition they were in at the commencement of work.

4. Approximate Performance Period: Period of performance is estimated, and timing of treatments will need to be flexible in order to maximize the effects on target weed species. The anticipated treatment window for this project is September 16 to October 16 and the Contractor must be available during that time period.

5. Requirements of Equipment to be supplied by the Contractor: In order to mitigate the spread of annual grass seeds and damage to culturally significant areas within the treatment area overland travel with mechanical equipment will not be permitted.

6. Loading Facilities: Use of any loading area on federal or private land, shall be arranged by and at the discretion and risk of the contractor.

7. Work Crew Requirements: Work crew for handling and mixing of chemical and loading equipment shall be furnished by the Contractor.

8. Requirements of Chemical to be supplied by the Contractor: Herbicide, surfactant, and dye shall be used and selected from the attached lists of Approved Herbicide Formulations and Approved Adjuvants for use on BLM land. Colorant/dye must be visible for 3 days after application.

9. Kind of Chemical: Imazapic (Plateau 241-365, Panoramic 2SL 66222-141-81927, or Nufarm Imazapic 2SL 71368-99) + Surfactant + Dye

Contractor must provide a list of chemicals intended for use with their bid package.

10. Rate of Application:

· Terrestrial Tank Mix: Imazapic (Plateau, Panoramic, or Nufarm Imazapic) at 8 ounces/acre (0.125 lb A.E./acre) + surfactant (Rate as specified on label and compatible with herbicide) + Dye

11. Remarks and Other Requirements: Apply the spray solution in properly maintained and calibrated equipment capable of delivering the desired volume. Controlling drift is the responsibility of the Applicator.

Boulder Valley and Lime Mountain treatment areas consist of many hills with drainages and draws that hold intermittently flowing streams. Terrain varies from flat 2% slopes in valley bottoms to steep hill sides with 15-35% slopes. Soil types in the area are a silty sand soil and cobbly silt soil. Elevation ranges from 6000 to 7000 Feet. Vegetation consists of semi-dense stands of Wyoming sagebrush and rabbitbrush shrublands, mixed perennial bunchgrasses and native forbs, cheatgrass and invasive, annual forbs. Two track roads (both marked and unmarked) are widespread throughout the entire treatment area.

If water is present during the time of application, the buffers for non-aquatically formulated herbicides will be maintained at 10 feet for application by handgun and 25 feet for application with boom equipment. Spraying up to the water’s edge (within the buffer) will require use of aquatic herbicide formulation and surfactant.