A06 Susie WEST Herbicide Detailed Specifications.docx

DETAILED SPECIFICATIONS

HERBICIDE APPLICATION

2021 Susie WEST Herbicide Weed Treatment

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

2. Treatment Area: 2,853 acres including up to approximately 35 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 7 miles northeast of Carlin, Nevada. The legal description of the treatment area is: T34N R52E & T34N R53E. 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 17 to June 17 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: Picloram (Tordon 22k or equivalent) at 16 ounces/acre (0.25 lb ae/acre) + 2,4-D (Alligare 2,4-D or equivalent) 32 ounces/acre (0.95 lb ae/acre) + Surfactant (Rate as specified on label and compatible with herbicide) + Dye

· Terrestrial Tank Mix: Clopyralid (Transline or equivalent) at 16 ounces/acre (0.374 lb A.E./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 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.

Most of the North Fork Susie West treatment area consists of many hills with drainages and draws that contain intermittently flowing streams. Terrain varies from flat, 2% slopes in the valley bottoms, to steep hills 15-50% slopes. Soils are loamy, deep, and well-drained. Elevation ranges from 5,100 to 5,600 feet. Vegetation consists of semi-dense to dense stands of Wyoming sagebrush and rabbitbrush shrublands, seeded crested wheat grasslands, mixed native forb and grass areas, and some sparse Utah Juniper stands. Multiple mapped and unmapped two-track roads traverse through the area. The steeper slopes may necessitate backpack spraying.

The smaller section of the project area consists of a flat, dry floodplain encompassing the northwest and western border. Soils are very fine sandy or silt loams and may be very slick when wet. Vegetation in the floodplain consists of crested wheatgrass and basin wildrye grasslands and dense, Basin big sagebrush shrublands.

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 formulated herbicide and surfactant.