C05_01_Attachment_1_-_PWS_7_23_2026.pdf

Solicitation No. 140R2026Q0094 Lake Berryessa East Side Road Seeding

Performance Work Statement

1.0 Purpose

The purpose of this Performance Work Statement (PWS) is to define required performance standards and responsibilities for restoration seeding across fire‑impacted lands along East Side Road at Lake Berryessa. Work will be funded through FY25 BIL-BAR 5-10 Year Post-Fire Recovery funding. This project will restore native grassland structure, reduce invasive plant cover, and support long-term post-fire ecological recovery of federally managed lands.

2.0 Background

Lake Berryessa was created as part of the Solano Project, authorized by the Reclamation Project Act of 1939 (53 Stat. 1187). The reservoir and surrounding federal lands are managed by the Bureau of Reclamation. At capacity, Lake Berryessa stores 1.6 million acre-feet (af) of water and is one of the largest bodies of fresh water in California. The lake is 23 miles long by 3 miles wide and has 165 miles of shoreline.

In 2020, the LNU Lightning Complex Fire burned large portions of the Project area. The recovery resulted in several time-consuming employee and public safety projects. This workload, when combined with a sharp decline in field office staff post-pandemic and post-fire, meant that a project to address the rise in invasive plants, including black mustard, along the eastern shore of Lake Berryessa could not be addressed until now.

3.0 Scope of Work – Revised / Expanded

The Contractor shall provide all labor, supervision, native seed, equipment (including water truck), tools, and materials required to perform invasive species removal and no-till seeding across approximately 383.8 acres within five paddocks. Prior to seeding, the Contractor shall also perform targeted invasive species removal.

1. Invasive Species Removal: After the Government completes two consecutive prescribed burns (fall and early spring), the Contractor shall conduct targeted plant removal as described in 3.1.

2. Native Seeding: Following completion of invasive species removal and Government approval of seedbed readiness, the Contractor shall conduct no-till seeding as described in Section 4.2.

The Contractor is responsible for meeting all performance standards associated with both tasks.

No work may begin until the Government issues written approval of both the Work written approval of the Contractor’s Work Plan and Quality Control Plan.

3.1 Invasive Species Removal (Contractor Responsibility)

Following the Government’s completion of two consecutive prescribed burns (fall and early-spring), the Contractor shall perform targeted invasive plant removal to prepare a suitable seedbed for native plant establishment. Work includes:

• Mechanical removal (hand-pulling, mowing, string-trimming), and/or

• Spot herbicide treatments if proposed in the Work Plan and approved by the Government.

This work is included in the Contractor’s responsibilities and is necessary to reduce competition with native seedings.

Invasive removal shall focus on mustard species, annual invasive grasses, and other species identified. Expected treatment extent is 5-30% of each paddock. Removal shall avoid creation of erosion-prone bare ground and avoid disturbance to native vegetation and sensitive resources during invasive control actions.

All invasive plant removal shall occur prior to no-till drilling and shall be documented in the Contractor’s Work Plan and daily logs.

The Contractor shall provide all labor, supervision, native seed, equipment, tools, and materials needed to conduct no‑till seeding of approximately 383.8 acres across five paddocks. The Contractor is responsible for achieving the performance outcomes defined in this PWS.

Prior to the start of work the contractor must submit and receive approval of a detailed Work Plan and Quality Control Plan.

Acreage by paddock:

Paddock Acreage 1A & B 71.3

2 71.4 3 118.6

4A & B 95 5 27.5

TOTALS 383.8

4.0 Performance Requirements

4.1 Invasive Species Control Requirements

The Contractor shall reduce post-burn invasive plant cover to levels that support successful native grassland establishment.

Minimum performance expectations:

• Remove or suppress invasive annuals so that post-treatment invasive cover does not exceed 20-40% of groundcover in treated areas.

• Achieve clear seedbed access for the no-til drill, with target areas free of dense mustard, annual grass mats, or resprouting perennial weeds.

• Ensure invasive plant removal does not create bare soil conditions susceptible to erosion;

maintain minimal protective stubble where possible.

If these performance conditions are not met, the Contractor shall implement corrective action at no additional cost to the Government, per Section 5.1.

4.2 Seed Mix Procurement

The Contractor shall:

• Provide a 100% native grass and /forb wildflower seed mix.

• Include no fewer than five (5) species from the Government‑provided species list.

• Ensure seed purity, viability, and labeling in accordance with state and federal law.

• Provide seed documentation (purity, germination, lot numbers) both with the work plan and again prior to application.

Approved Species List:

Common Name Scientific Name Plant Type Meadow or California Barley Hordeum brachyantherum Perennial Grass California Brome Bromus carinatus Perennial Grass California melic Melica californica Perennial Grass Purple Needlegrass Nasella pulchra Perennial Grass Nodding Needlegrass Nasella cernua Perennial Grass Small-Flower Melicgrass Melica imperfecta Perennial Grass Small Fescue Vulpia microstachys Annual Grass Blue Wildrye Elymus glaugus Perennial Grass Creeping Wildrye Leymus triticoides Perennial Grass

4.3 Seeding Application

The Contractor shall:

• Apply seed using a no‑till drill or other Government‑approved low‑disturbance method.

• Seed the entirety of the designated paddocks, achieving total treated acreage within 3% of the Government‑identified acreage.

• Ensure even seed distribution consistent with native grassland restoration standards, and industry best practices.

• Conduct seeding only during the months of October - November unless otherwise approved in writing by the Government.

• Submit GPS-tracked seeding coverage maps.

• Comply with all environmental and biological protection measures contained in Section

7.0.

4.4 Monitoring Requirements

The Contractor shall conduct all required monitoring to document baseline vegetation conditions, evaluate the effectiveness of invasive species removal, and assess post-seeding establishment.

Desired Monitoring:

The Contractor shall establish linear transects in each of the 5 parcels. Each transect will be 2-meters in width and 50 meters in length starting from the permanent fenceline adjacent to East Side Road and extending towards the shoreline. The transects will be laid out using a measuring tape before seeding, after seeding, and 6 months after seeding using the same fixed endpoints such as a fence, shrub, or stake. Utilizing the centerline of the tape as the axis of the transect, plants rooted up to one meter away from the measuring tape will be tabulated.

Deliverables – The Contractor shall submit:

• Complete datasheets for all transect.

• Transect maps and GIS data showing transect locations.

• Photographs of each transect and representative plots.

• A monitoring summary describing vegetation conditions and any deviations from expected performance.

4.5 Biological Surveys (Government Responsibility)

Prior to any ground disturbing activities, pre-construction biological surveys will be conducted in the action area for federally listed species by the Government. These surveys are not part of the Contractor’s scope.

5.0 Work Plan Requirement

Before beginning work, the Contractor shall submit a Work Plan to the Government for approval.

The plan shall include:

• The final seed mix (species and quantities).

• Proposed invasive species removal methods.

• Equipment descriptions to be used, including water truck and decontamination procedures.

• Seeding approach, sequencing, and daily production estimates.

• Environmental compliance methods.

No work may begin until the Government issues written approval of the work plan.

5.1 Re‑Performance Requirement

If work deviates from the approved work plan without written Government authorization, the Contractor shall re-perform work at no additional cost to the Government.

The Government reserves the right to reject any work not performed in accordance with the approved plan or this PWS.

6.0 Quality Control Plan (QCP)

Within 10 days after award, the Contractor shall submit a Contractor Quality Control Plan (QCP) describing inspection procedures, personnel responsibilities, monitoring frequency, corrective action processes, and documentation protocols. The plan must be approved by the Contracting Officer prior to commencing work.

7.0 Environmental Protection Requirements

7.1 Worker Environmental Awareness Training (WEAT)

Worker Environmental Awareness Training: Prior to the commencement of Project work, all Project personnel will attend an environmental awareness training. It will include; species descriptions and habitat needs, species status and protection under the Endangered Species Act, definition of take, reporting requirements, conservation measures to reduce project impacts, and instructions for encountering California Red-legged Frog (CRLF) and Keck’s checker-mallow in areas where take could occur. Employees will sign a form stating that they received and understand the training. Reclamation will maintain a list of personnel receiving the training.

7.2 Wildlife Protection During Work

To reduce the potential for Project vehicles striking CRLF, a 10-mile-per-hour speed limit will be enforced at the site.

To reduce the potential for Project vehicles striking CRLF, a 10-mile-per-hour speed limit will be enforced at the site.

No work will occur during or 24-hours following a rain event. A rain event is to be considered precipitation of ¼-inch or more within a 24-hour period.

All Project personnel will be informed of the Action Area boundaries for Project activities. If necessary, flagging and/or staking may be used to define the Project area limits.

7.3 Vehicle and Equipment Decontamination

To prevent spread of invasive species, disease, or contaminants:

• All equipment and vehicles shall be fully decontaminated prior to arriving on site.

• Decontamination steps must be described in the Work Plan.

7.4 Ground Preparation

The Government will perform required ground preparation (e.g., controlled burns). The Contractor shall coordinate timing and shall not enter the site until the Government authorizes access.

7.5 Invasive Species Management

To prevent further spread of non-native vegetation, all invasive species removal shall follow BMPs including:

• Minimizing soil disturbance during mechanical removal,

• Cleaning tools and equipment between paddocks,

• Avoiding invasive plant seed dispersal during removal activities,

• Immediately reporting any new invasive species detections to the Government.

8.0 Government-Furnished Property / Access

The Government will provide access keys for gates along East Side Road and the Eticuera Day Use Area. The Government could also provide access to the maintenance yard at the Lake Berryessa Administration Office, which contains a water source for project use. The Government will not provide a water truck.

The Contractor shall supply and operate a water truck suitable for all project needs, including equipment cleaning, dust control, and any other approved activities requiring water. The paddocks have no on-site water access, and the Contractor is responsible for transporting water.

The Contractor shall include the water truck, water-hauling logistics, and refilling procedures in the Work Plan. Contractors may access the shoreline to obtain water at the Field Office Administration Office, if needed.

All other equipment, seed, and supplies shall be provided by the Contractor.

9.0 Period of Performance

• Base Year: 10/01/2026 – 9/30/2027

• Option Year 1: 10/01/2027 - 9/30/2028

• Workdays: Monday–Friday, excluding federal holidays.

9.1 Paddock Option Year

Native grassland establishment can be impacted by environmental conditions, soil moisture, post‑fire succession, precipitation timing, and other natural factors outside the Contractor’s control.

Based on Government monitoring following the base‑year seeding, some paddocks may require additional reseeding the following year, while others may not.

To accommodate this, the Government intends to include separate option‑year CLINs for each paddock. The Government will exercise only the CLINs associated with those paddocks that the Government determines require reseeding.

If an option‑year CLIN is exercised, the Contractor shall perform reseeding in accordance with the requirements of this PWS and the approved Work Plan for that performance period and paddock(s).

10.0 Place of Performance

Work will occur along ~6 miles of federal land along the East Side Road at Lake Berryessa.

Lake Berryessa Field Office 5520 Berryessa Knoxville Road Napa, CA 94558

The contractor may stage equipment and supplies on the hardened surfaces of:

Eticuera Day Use Area 8600 Berryessa Knoxville Road Napa, CA 94558

The work will take place along 6 miles of East Side Road from its intersection with Berryessa Knoxville Road just north of Eticuera Day Use Area extending south to its intersection with the southern gate limiting public access to the Gunn Easement (38.632185835028, - 122.23397247869522).

11.0 Deliverables

• Approved Work Plan

• Approved Quality Control Plan

• Seed Procurement Documentation

• Invasive Removal Summary

• Daily logs (as requested)

• GPS Seeding Maps

• Final Seeding Completion Report

12.0 Type of Contract

The Government intends to award a firm-fixed price service contract as a result of this solicitation.

13.0 Administrative Information

13.1 Recognized Holidays

The Contractor is not required to work on the following Federal Holidays:

New Year’s Day Martin Luther King Jr.’s Birthday President’s Day Memorial Day Juneteenth National Independence Day Independence Day Labor Day Columbus Day Veteran’s Day Thanksgiving Day Christmas Eve/Christmas Day