A06_Detailed_Specs.docx

DETAILED SPECIFICATIONS

HERBICIDE APPLICATION

2023 Adobe Herbicide Weed Treatment

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

2. Treatment Area: 546 acres including up to approximately 13 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: Project area is located approximately 25 miles north of Elko, Nevada in the Adobe Mountains. The legal description of the treatment area is: T37N R55E. See Attached Location Maps.

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 May 15 to June 30 and the Contractor must be available during that time period.

5. Requirements of Equipment to be supplied by the Contractor: Sufficient to meet specifications of the contract.

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.

10. Rate of Application:

· Terrestrial Tank Mix: Clopyralid (Transline or equivalent) at 16 ounces/acre (0.25 lb A.E./acre) + Metsulfuron methyl (Escort, MSM60, or equivalent) at 1 ounces/acre (0.0375lb AI/acre) + surfactant (Rate as specified on label and compatible with herbicide) + Dye

· Terrestrial Tank Mix Alternative: Chlorsulfuron (Telar XP or equivalent) at 1.0 ounces/acre (0.047 lb AI/acre) + 2,4-D (Alligare 2,4-D or equivalent) at 32 ounces/acre (0.95 lb ae/acre) + surfactant (Rate as specified on label and compatible with herbicide) + Dye

· Aquatic Mix: Aquatically approved 2,4-D (Alligare 2,4-D or equivalent) at 64 ounces/acre (1.9 lb ae/acre) + Aquatically approved surfactant (Rate as specified on label and compatible with herbicide) + Dye.

Quote must include both upland tank mixes. Only one terrestrial tank mix will be selected and funded, based on price and Government application needs.

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.

The Adobe treatment area consists 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. Soils types in the area are a silty sand soil and cobbly silt soil. Elevation ranges from 6000 to 6900 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. The steeper slopes may necessitate backpack spraying.

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.