PWS.Revised 5.21.2025.KO Approved.pdf

PERFORMANCE WORK STATEMENT

Englebright Lake - Yuba River Gravel Placement

21 May 2025

1. Part A – General Information:

1. Services: This project is being performed as a requirement of a Biological Opinion issued by the National Marine Fisheries Service (NMFS). The U.S. Army Corps of Engineers (Corps) is proposing to continue a gravel augmentation project which involves placement of a heterogeneous mix of gravel and cobble into the lower Yuba River channel below Englebright Dam.

The purpose of gravel augmentation is to place suitable-sized spawning gravel within the upper Narrows reach for rehabilitating associated geomorphic processes and aquatic habitat in the Englebright Dam reach of the Lower Yuba River. Implementation of a long-term augmentation program will serve to improve the overall ecological functionality of the channel. The project will provide gravel and cobble suitable for anadromous salmonid adult spawning, embryo incubation, and survival to emergence in a key area in the lower Yuba River designated as critical habitat for the Central Valley spring-run Chinook salmon and the Central Valley steelhead. The project area is located on the lower Yuba River downstream of Englebright Dam (Yuba River mile 23.9), Yuba County, California (Plate 1). Gravel augmentation will be confined to the river channel located between Englebright Dam and the junction with Deer Creek. This reach is called the Englebright Dam Reach and it is located in the steep canyon off Highway 20, about 23 miles east of Marysville, California

2. Authorities/Technical Direction: The Contractor shall not take direction from any Government employee, or any person other than the Government Contracting Officer that changes the terms and conditions of this contract action, scope or impacts the cost, price, or schedule. Changes authorized by the Contracting Officer will be in the form of a written, official, signed modification to the contract action received by the Contractor before the Contractor shall act upon those changes. The Contractor shall comply with the changes clause of this contract when the Contractor believes direction has been given from persons other than the Government Contracting Officer that equate to a change by notifying the Contracting Officer as directed by the clause. Any direction given by any Government employee or any other person outside their authority must be reported to the Contracting Officer. The COR is limited to the authorities stated in the COR appointment letters.

3. Invoices & Payments:

The Contractor shall be paid after the completion of specified services for the amount of work accomplished. Invoices shall be verified by the COR before payment can be authorized. Invoices shall be sent in arrears WITHOUT all required information including any necessary supporting documentation to the following address:

USAED, Finance Center Attn: CEFC-FP

5722 Integrity Dr.

Millington, TN 38054-5005

CEFC-Payments@usace.army.mil

One copy each of Invoice WITH all required information including any necessary supporting documentation.

U.S. Army Corps of Engineers Attn: COR, Englebright Lake 12896 Englebright Dam Road, Smartsville, CA 95977.

mailto:CEFC-Payments@usace.army.mil

Email address to be provided at time of award.

Final payment shall be authorized when the COR approves the work as complete and contractor removes all materials, equipment, supplies, transportation, and all reporting requirements have been met.

All invoices must reflect contract number and final invoice shall be marked “FINAL”.

1. Part B – Work to be performed:

2. General Information: The Contractor shall furnish all labor, materials, equipment, supplies, transportation, and supervision necessary to provide the US Army Corps of Engineers (USACE) with Gravel Placement Services to meet specific terms within the Biological Opinion issued by the National Marine Fisheries Service (NMFS).

3. The contractor shall be held accountable for restoring any damage to the roadway past the locked gate near the University of California’s Sierra Foothill Research and Extension Center. Any harm or deterioration identified by the COR will be considered the contractor’s responsibility. Upon determination by the COR, the contractor must ensure that the roadway is returned to its original state, using materials and repair methods that match the existing infrastructure. This requirement includes any necessary grading, resurfacing, or structural reinforcement to maintain the integrity and safety of the roadway. All corrective actions must be completed promptly and to the satisfaction of the COR to prevent further degradation and ensure continued access to the facility

4. This contract consists of a Base Year and (4) Option Years. Gravel Placement must be done between July 15th and September 1st of each year. This is the only period allowed per the terms of the Biological Opinion.

5. Work Location: Service shall be performed in the areas listed in this statement of work unless otherwise specified by the COR.

a. Yuba . To access the project area, take Peoria Road off Highway 20 (2 miles downstream of Parks Bar Bridge). Peoria Road merges into Scott Forbes Road to Narrows II powerhouse. Contractor shall be provided access through locked gate near the University of California’s Sierra Foothill Research and Extension Center. Total distance from Highway 20 to Narrows II powerhouse: 8 miles.

b. Lower Yuba River, downstream from the HWY 20 bridge , Yuba County, CA

6. Tasks: The following tasks are to be performed in support of this effort:

The Gravel Placement window: July 15th through September 1st.

Gravel Purchase and Delivery:

The Contractor shall purchase and deliver an initial amount of approximately 5,000 short tons of a specified mix of gravel and cobble (0.25 – 5 inches in diameter) to the project area location specified in Section 2 - General Information and shown on Plates 1 and 2. NOTE: There is not sufficient room to stockpile the gravel mix on site. It must be delivered as needed.

Placement of Gravel:

The Contractor shall “place” 5,000 short tons of gravel in the Yuba River as specified in the Gravel Augmentation Implementation Plan (GAIP). The Contractor shall use a “sluicing” method of gravel placement that involves pumping water-gravel slurry through an 8-inch flexible pipe. The water-gravel slurry shall be placed directly into the water within the river channel at the location specified in Section 2

- General Information and shown on Attachment 4.

Water Truck Standby:

The Contractor shall provide for a 2,000- gallon water truck to stand by for fire suppression if necessary.

Optional Purchase and Delivery:

The Contractor shall purchase and deliver up to 10,000 short tons, in 1,000 short ton increments of a specified mix of gravel and cobble (0.25 – 5 inches in diameter) to the project area location specified in Section 2 - General Information and shown on Plates 1 and 2. NOTE: There is not sufficient room to stockpile the gravel mix on site. It must be delivered as needed. This is an optional task and will be requested at the discretion of the Operation Project Manager.

Optional Placement:

The Contractor shall “place” the additional purchased gravel in accordance with the GAIP. The Contractor shall use a “sluicing” method of gravel placement that involves pumping water-gravel slurry through an 8-inch flexible pipe. The water-gravel slurry shall be placed directly into the water within the river channel at the location specified in Section 2 - General Information and shown on Attachment 2.

This is an optional task and will be requested at the discretion of the Operations Project Manager.

Gravel Specifications as required per the Biological Opinion:

Gravel Size (inches) Percent Retained

Target % of Total Mix

3.5” to 5” 1.25” to 3.5” .75” to 1.25”

.5” to .75” .25” to .5”

30% 80% 88% 96% 100%

30% 50% 8% 8% 4%

7. Pre-Work Meeting: The Contractor shall meet with the COR at least five (5) days prior to commencement of the contract to discuss contract requirements and provide proof of meeting the following requirements:

i. Valid Driver’s License.

ii. General Liability Insurance (Minimum $1,000,000.00).

iii. Automobile Liability Insurance. (Minimum $1,000,000.00)

iv. Worker’s Compensation Insurance (Minimum $100,000.00 per employee).

v. Safety plan.

1. Part C – Contractor Responsibilities

2. Safety and Health Requirements: The Contractor shall comply with the latest version of EM 385-1-1 (including interim changes), U.S. Army Corps of Engineers (USACE) Safety and Health Requirements Manual.

See USACE website for more details at www.usace.army.mil/Safety-and-Occupational-Health/. The Contractor will be provided access to a copy of EM 385-1-1. A copy of EM 385-1-1 is located at the park Office and is available online. The Contractor shall comply with all pertinent provisions of the California http://www.usace.army.mil/Safety-and-Occupational-Health/

State Health Code, Cal-OSHA, and Yuba and Nevada Counties Codes. An observed Contractor violation of safety requirements/equipment shall be grounds for the Government to stop work. Work shall not continue until the violation is corrected.

3. Equipment: Equipment must be capable of driving through shallow water and not be susceptible to sinking into the riverbed. Since the equipment will be working in an aquatic environment, all exterior surfaces of the equipment must be clean and free of oils, greases and lubricants. All hydraulic hoses and fittings shall be inspected to insure there are no leaks. If equipment leaks or has not been properly cleaned, work will not be allowed to proceed until the deficiencies are corrected. Excavation equipment may need to be driven or “walked” into to job site due to road conditions and terrain. All equipment shall have all safety features intact and in operating condition. All equipment must be suitable for use on the described project and is subject to the acceptance of the Contracting Officers Representative. The access road for the work areas requires the use of a locked gate. The gate must remain locked and closed at all times. Access codes will be provided to the contractor prior to the start date. The contractor will be responsible for all ingress and egress of contractor personnel and sub-contractors. The contractor will be responsible to provide a chemical toilet for use by contract personnel during all on site activities.

4. Ability to Perform: The Contractor shall have sufficient equipment and labor to perform services. If for any reason the Contractor is unable to perform any service as scheduled, the COR shall be notified 24 hours in advance.

QUALITY ASSURANCE SURVEILLANCE PLAN (QASP)

Yuba River Gravel Placement

Englebright Lake Smartsville CA

Quality Assurance Surveillance Plan: The QASP will consist of periodic inspections conducted by the COR or his/her designee. A surveillance report shall be prepared by the COR and forwarded to the Contractor. The Contractor shall respond to any complaints and/or ratings of poor performance within five (5) calendar days, after receipt of the report.

Performance Standard Acceptable Quality Level

(AQL)

Method and Frequency of Inspection

Remedy

Obtain acceptance from the Contracting Officer’s Representative on all Pre-Work Submittals and attend the pre-work meeting, as outlined in the

PWS.

100% Completion

Scheduled Inspection.

Upon completion of submittals and pre-work meeting, but not later than 10 days after award.

Remedy: The Contractor shall reperform at no additional cost to the Government until approval of the APP. Continuous review until performance is satisfactory per the AQL.

Gravel purchase delivery and placement.

97% required at the AQL

Random and scheduled quality assurance inspections by the

COR.

Remedy: The Contractor shall reperform at no additional cost to the Government. Continuous review until performance is satisfactory per the AQL.

GAIP PLACEMENT MAP

1. Part B – Work to be performed: