W912P723B0007P00002-.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

1. CONTRACT ID CODE PAGE OF PAGES

J 1 22

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912P723B0007

X 9B. DATED (SEE ITEM 11)

02-Jun-2023

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO.

5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

30-Jun-2023

CODE

USACE, SAN FRANCISCO DISTRICT

450 GOLDEN GATE

SAN FRANCISCO CA 94102

W912P7 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

Mary Fronck 415-503-6554 mary.fronck@usace.army.mil

Amendment 2 Summary of revisions

1. Specs section 01 11 00: Revised subsections 1.2.1 and 1.2.2 to require the contractor to do water quality monitoring.

2. Specs section 01 57 19: Added subsections 1.4.1, 1.11, 1.12, 3.1.5.1, 3.1.5.2, 3.1.5.3 and 3.1.5.4 and revised subsections 1.3, 1.5, 1.6.1, 1.6.2, 1.6.3, 1.7.5 and 3.1.5 to add the water quality monitoring requirements and required conservation measures for the protection of aquatic resources.

3. Specs section 35 20 23: Revised subsection 3.2.6.3 to provide notification in case of pipeline leak.

x 1

Added FAR Clause 52.204-27 Prohibition on a ByteDance Covered Application JUN 2023 Added Biological Opinion Document

W912P723B00070002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

(End of Summary of Changes)

Amendment 2 Summary of revisions

1. Specs section 01 11 00: Revised subsections 1.2.1 and 1.2.2 to require the contractor to do water quality monitoring.

2. Specs section 01 57 19: Added subsections 1.4.1, 1.11, 1.12, 3.1.5.1, 3.1.5.2, 3.1.5.3 and 3.1.5.4 and revised subsections 1.3, 1.5, 1.6.1, 1.6.2, 1.6.3, 1.7.5 and 3.1.5 to add the water quality monitoring requirements and required conservation measures for the protection of aquatic resources.

3. Specs section 35 20 23: Revised subsection 3.2.6.3 to provide notification in case of pipeline leak.

Added FAR Clause 52.204-27 Prohibition on a ByteDance Covered Application JUN 2023 Added Biological Opinion Document

Sacramento DWSC FY23 Maintenance Dredging W912P723B00070002

SECTION 01 11 00

SUMMARY OF WORK

08/11

PART 1 GENERAL

1.1 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

1.2 PROJECT DESCRIPTION

The work includes annual maintenance dredging of the federal navigation channel in the Sacramento River Deep Water Ship Channel (DWSC).

1.2.1 Requirements

a. Dredge the specified dredge reaches in the Sacramento DWSC to -30-ft MLLW plus 1-ft of allowable paid overdepth in Sacramento River DWSC.

All dredge material is suitable for the upland sites shown on plan sheets. Dredge material may be suitable for beneficial reuses at Contractor furnished sites in accordance with the permit requirements of the specific reuse site. The most recent sediment sampling report is attached at the end of the specification package.

b. Dredging operations in the Sacramento River DWSC shall begin at the downstream end of the channel (dredge reach 1) and continue in ascending order towards the upstream of the channel.

c. If a second dredge plant is used, dredging operations shall follow the order of the aforementioned requirement (item b). Multiple dredge plants shall not work in the same dredging reach.

d. Contractor shall coordinate to allow Government to perform fish monitoring and water quality monitoring .

e. Contractor shall conduct water quality monitoring and sampling as required in the Memorandum of Understanding (MOU) Resolution R5-2019-0041 with the Central Valley Regional Water Quality Control Board (CVRWQCB) for hydraulic dredging, or in accordance with Attachment B of CRWQCB Waste Discharge Requirements for Maintenance Dredging Operations Order R5-2022-0052 (WDR) for clamshell dredging.

The Contractor shall note that the specific monitoring and sampling requirements of the MOU are different from the WDR. Conduct dredging, material placement and discharge in a manner that meets water quality criteria in the MOU or WDR. Additional BMPs like discharge management and turbidity curtains may be required at some sites to meet the criteria.

ef . Government intends to perform fish monitoring on 30% of dredge material. Contractor need not delay dredging for compliance with Government fish monitoring.

SECTION 01 11 00 Page 2 June 27, 2023 f g. If Government furnished upland dredged material placement sites are used, the Contractor shall notify the Government 72 hours prior to starting site work at Government-furnished placement sites , so that Government can perform Environmental inspections of dredge material placement sites prior to ground disturbance .

gh. This project can be dredged either with a clamshell dredger or a hydraulic cutterhead dredger. If a hydraulic cutterhead dredge plant(s) is used, the plant(s) shall have a minimum of 16-in diameter pipeline and 1,800 horsepower for the main pump engine.

hi . The Contractor is responsible for dredge material placement site preparation and dredge material management. See Section TEMPORARY ENVIRONMENTAL CONTROLS 01 57 19 for additional requirements.

1.2.2 Constraints

a. The environmental work window for the Sacramento DWSC is from 1 August to 31 October. Dredging is prohibited prior to 1 August. Pipeline assembly and disposal site preparation is allowed prior to 1 August.

b. All diesel-powered equipment must meet California Air Board emissions requirements.

c. Contractor is allowed a total accidental take of not more than 5 delta smelt (a listed endangered species) as stipulated in the USFWS biological opinions from the Sacramento River DWS Channel for the entire contract. Conduct dredging and material placement in a manner that minimizes adverse impacts to listed species and adheres to the conservation measures in the BO's as outlined in Section TEMPORARY

ENVIRONMENTAL CONTROLS 01 57 19.

d. Contractor must be in compliance with the Memorandum of Understanding Resolution R5-2019-0041 (MOU) (for hydraulic pipeline dredging) or WDR Order R5-2022-0052 (WDR) (for clamshell dredging) with the Central Valley Regional Water Quality Control Board (CVRWQCB). See Section

TEMPORARY ENVIRONMENTAL CONTROLS 01 57 19.

1.3 MEETINGS

1.3.1 Preconstruction Conference

The preconstruction conference will be held at such time and location as determined by the Contracting Officer or delegated representative for purposes of discussing and developing mutual understanding between the Contracting Officer or delegated representative and the Contractor's Representatives regarding the terms, conditions, and requirements of the contract. Members of the conference from the Government will include the quality assurance staff, the Contracting Officer or delegated representative, and construction staff. Members from the Contractor shall include the dredge master, chief hydrographic surveyor, and the quality control staff. The discussion will include, but will not be limited to, the following:

- Contractor supervisory and quality control project staff

- Correspondence procedures

- Accident Prevention Plan

- Operations and Water Quality Monitoring Plan

SECTION 01 11 00 Page 3 June 27, 2023

1.2.16 Waters of the United States

Waters of the United States means federally jurisdictional waters, including wetlands, that are subject to regulation under Section 404 of the Clean Water Act or navigable waters, as defined under the Rivers and Harbors Act.

1.2.17 Wetlands

Wetlands are those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions.

1.2.18 Universal Waste

The universal waste regulations streamline collection requirements for certain hazardous wastes in the following categories: batteries, pesticides, mercury-containing equipment (for example, thermostats), and lamps (for example, fluorescent bulbs). The rule is designed to reduce hazardous waste in the municipal solid waste (MSW) stream by making it easier for universal waste handlers to collect these items and send them for recycling or proper disposal. These regulations can be found at

40 CFR 273 .

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Pre-Dredge Submittals

Pre-Dredge Survey

Environmental Protection Plan ; G

Operations And Water Quality Monitoring Work Plan ; G

SD-11 Closeout Submittals

Water Quality Monitoring Report ; G

1.4 ENVIRONMENTAL PROTECTION REQUIREMENTS

Provide and maintain, during the life of the contract, environmental protection as defined. Plan for and provide environmental protective measures to control pollution that develops during construction practice.

Plan for and provide environmental protective measures required to correct conditions that develop during dredging. Protect the environmental resources within the project boundaries and those affected outside the limits of work during the entire duration of this Contract. Comply with federal, state, and local regulations pertaining to the environment, including water, air, solid waste, hazardous waste and substances, oily substances, and noise pollution.

SECTION 01 57 19 Page 9 June 27, 2023

Tests and procedures assessing whether construction operations comply with Applicable Environmental Laws may be required. Analytical work must be performed by qualified laboratories; and where required by law, the laboratories must be certified.

1.4.1 Conservation Measures for the Protection of Aquatic Resources

The following measures are non-discretionary actions required to protect species listed as threatened or endangered under the endangered species act (ESA). These measures are also listed under the Avoidance and Minimization Measures for Dredging Activities in the biological opinions issued by the USFWS and NMFS.

(1) Dredging at depths of less than 20 feet will be avoided to the maximum extent achievable.

(2) Maintenance dredging will only be conducted in the authorized channel to the authorized depths.

(3) The contractor will notify the Government of the project dredging schedule and plans as soon as they are known, and will keep the Government informed of any schedule changes. The Government will notify USFWS, NMFS, and CDFW.

(4) The maintenance dredging work window extends from August 1 through October 31 in the Sacramento DWSC.

(a) Within the Sacramento DWSC, to avoid peak migration of juvenile salmonids and adult presence in the project area, dredging will proceed from downstream to upstream during the environmental work window from August 1 until October 31.

(5) If two dredgers are used in a single channel, they shall not operate in the same reach. Alternatively, if two dredgers are used in the same reach, a turbidity curtain must be used downstream of each dredger to reduce the length of channel that fish are exposed to elevated turbidity.

(6) All slurry pipe placement and bank stabilization activities shall specifically avoid known locations containing special status species and/or designated critical and other sensitive habitats to the maximum extent feasible.

(7) If significant damage to wetlands or associated vegetation occurs, the Contractor shall restore the area to pre-existing conditions.

(8) The contractor is responsible for providing erosion and sediment control measures in accordance with Federal, State, and local laws and regulations to ensure compliance with water quality standards. The Contractor is responsible for the placement of temporary and permanent erosion and sediment control best management practices. These may include, but are not limited to, vegetation cover, stream bank stabilization, slope stabilization, silt fences, construction of terraces, interceptor channels, sediment traps, inlet and outfall protection, diversion channels, and sedimentation basins. Silt fences and other non-natural temporary measures shall be removed after the area has been stabilized.

SECTION 01 57 19 Page 10 June 27, 2023

1.4.2 Additional Conservation Measures for the Protection of Aquatic Resources for Cutterhead Dredgers

(1) If using a cutterhead dredger, the cutterhead will not be operated more than three feet above the channel bottom.

(2) Suction will not be employed while the dredge head is deployed and retrieved through the water column.

(3) The dredger will maintain the suction head at a constant elevation near the channel bed when dredging, to reduce the field of influence where fish may be entrained into the dredge pipe.

(4) Draghead deflectors will be installed on the leading edge of hopper dredge dragheads to minimize the risk of incidental take of benthic species such as green sturgeon. The deflector is designed to have a plowing effect of at least 6 inches.

1.4.3 Additional Conservation Measures for the Protection of Aquatic Resources for Clamshell Dredgers

(1) Multiple horizontal dredge cuts will be taken where a thick horizontal volume needs to be dredged to avoid overfilling the bucket and causing spillage.

(2) Once the clamshell bucket reaches the target depth, it will be fully closed before the dredge operator begins to raise it to the surface of the water column. This method, coupled with the use of a mechanical cable arm environmental clamshell bucket, minimizes the potential for generating turbidity in the water column.

(3) Once out of the water, the clamshell bucket will place dredged sediment directly into the scow. Sediment will not be released from the bucket until it is fully inside the scow. Within the scow, dredged sediment will pass through a 12-inch-by-12-inch grid to prevent any solid debris or artificial objects from entering the scow. Solid debris and artificial objects trapped on the grid will be removed and brought to an approved waste disposal site. Large woody debris with environmental value will be returned to the channel where not a hazard to navigation. The bucket will be held open over the grid within the scow until all the sediment and water has drained from within it to minimize the potential for resuspension of the sediment in the water column.

(4) The load line on disposal barges used for mechanical dredging will be predetermined based on channel conditions, and the barge will not be filled above this predetermined level. Under no circumstance will scows be loaded to more than 90% capacity.

(5) Untreated water shall not be overflowed, decanted, discharged, or otherwise released from the vessel.

(6) Before each disposal barge is transported to a placement site, the dredging contractor and a site inspector must certify that it is filled correctly. Scows will be inspected to ensure no loss of sediment during loading and transport.

(a) If turbidity levels reach a value that represents 75% of the relevant allowable limit as identified in the MOU or WDR for any

SECTION 01 57 19 Page 11 June 27, 2023 reason, the Corps' contractor will immediately slow the dredge rate by 50% to prevent turbidity levels from increasing further (i.e., if the cycle time for the bucket to descend, collect material, and drop that material in the scow is 30 seconds when the violation occurs, the revised cycle time should be 45 seconds until levels return to below 75% relevant allowable limits).

(b) If turbidity levels reach a value that represents 90% of the relevant allowable limit as identified in the MOU or WDR for any reason, the Corps' contractor will deploy a type II turbidity curtain, bubble curtain, or other similar measure to prevent the plume from migrating away from the dredge site. The curtain shall remain in place until levels have returned to below 75% relevant allowable limits.

1.5 SPECIAL ENVIRONMENTAL REQUIREMENTS

The Contractor shall conduct dredging, material placement, and any discharge of decant water from dredged material placement sites in accordance with the BO's and in a manner that meets the water quality criteria laid out in the Memorandum of Understanding (MOU) Resolution R5-2019-0041 with the Central Valley Regional Water Quality Control Board (CVRWQCB) for hydraulic pipleline pipeline dredging and of or the CRWQCB Waste Discharge Requirements for Maintenance Dredging Operations Order R5-2022-0052 (WDR) for clamshell dredging. Additional BMPs like discharge management and turbidity curtains may be required at some sites to meet the criteria. The contractor needs to communicate regularly as needed to keep the third party ensure good communication within its staff to keep water quality monitoring personnel contractor updated as to when and where dredging and material placement will be occurring, when discharge from dredged material placement sites will begin and end, if there any unexpected discharges, etc. The contractor will need to give the 3rd party monitoring contractor as much notice of these items as possible.

1.6 QUALITY ASSURANCE

1.6.1 Preconstruction (pre-dredge) Survey and Protection of Features

This paragraph supplements the Contract Clause PROTECTION OF EXISTING VEGETATION, STRUCTURES, EQUIPMENT, UTILITIES, AND IMPROVEMENTS. Prior to start of any onsite construction activities, perform a Pre-Dredge Survey of the project site with the Contracting Officer or delegated representative, and take photographs showing existing environmental conditions in and adjacent to the site. Submit a report for the record.

Include in the report a plan describing the features requiring protection under the provisions of the Contract Clauses, which are not specifically identified on the drawings as environmental features requiring protection along with the condition of trees, shrubs and grassed areas immediately adjacent to the site of work and adjacent to the Contractor's assigned storage area and access route(s), as applicable. The Contractor and the Contracting Officer or delegated representative will sign this survey report upon mutual agreement regarding its accuracy and completeness.

Protect those environmental features included in the survey report and any indicated on the drawings, regardless of interference that their preservation may cause to the work under the Contract.

SECTION 01 57 19 Page 12 June 27, 2023

1.6.2 Environmental Brief

Attend an environmental brief to be included in the pre-dredge /preconstruction conference meeting . Provide the following information:

types, quantities, and use of hazardous materials that will be brought onto the installation; and types and quantities of wastes/wastewater that may be generated during the Contract. Discuss the results of the Preconstruction pre-dredge Survey at this time.

Prior to initiating any work on site, meet with the Contracting Officer or delegated representative and USACE Environmental Team to discuss the proposed Environmental Protection Plan (EPP). Develop a mutual understanding relative to the details of environmental protection, including measures for protecting natural and cultural resources, required reports, required permits, permit requirements (such as mitigation measures), and other measures to be taken.

1.6.3 Employee Training Records

Prepare and maintain Employee Training Records throughout the term of the contract meeting applicable 40 CFR requirements. Provide Employee Training Records in the Environmental Records Binder.

Train personnel to meet state requirements. Conduct environmental protection/pollution control meetings for personnel prior to commencing construction activities. Contact Conduct additional meetings for new personnel and when site conditions change. Include in the training and meeting agenda: methods of detecting and avoiding pollution;

familiarization with statutory and contractual pollution standards;

installation and care of devices, vegetative covers, and instruments required for monitoring purposes to ensure adequate and continuous environmental protection/pollution control; anticipated hazardous or toxic chemicals or wastes, and other regulated contaminants; recognition and protection of archaeological sites, artifacts, waters of the United States, and endangered species and their habitat that are known to be in the area.

1.6.4 Non-Compliance Notifications

The Contracting Officer or delegated representative will notify the Contractor in writing of any observed noncompliance with federal, state or local environmental laws or regulations, permits, and other elements of the Contractor's EPP. After receipt of such notice, inform the Contracting Officer or delegated representative of the proposed corrective action and take such action when approved by the Contracting Officer or delegated representative. The Contracting Officer may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No time extensions will be granted or equitable adjustments allowed for any such suspensions. This is in addition to any other actions the Contracting Officer or delegated representative may take under the contract, or in accordance with the Federal Acquisition Regulation or Federal Law.

1.7 ENVIRONMENTAL PROTECTION PLAN

The purpose of the EPP is to present an overview of known or potential environmental issues that must be considered and addressed during dredging. Include in the EPP measures for protecting natural and cultural

SECTION 01 57 19 Page 13 June 27, 2023 resources, required reports, and other measures to meet the turbidity limits and other requirements in the MOU and/or WDR with the Central Valley Regional Water Quality Control Board (CVRWQCB). See 1.6.2 for requirements for pre-meeting with the Government prior to preparing the EPP for initial submission. Contingency plans should be discussed in the EPP that explain what actions will be taken if minimum freeboard isn't being maintained, if turbidity requirements are not being met, or if an adverse incident occurs. Submit the EPP within 15 days after Contract award and not less than 10 days before the preconstruction meeting.

Revise the EPP throughout the project to include any reporting requirements, changes in site conditions, or contract modifications that change the project scope of work in a way that could have an environmental impact. No requirement in this section will relieve the Contractor of any applicable federal, state, and local environmental protection laws and regulations. During dredging, identify, implement, and submit for approval any additional requirements to be included in the EPP. Maintain the current version onsite.

The EPP includes, but is not limited to, the following elements:

1.7.1 General Overview and Purpose

1.7.1.1 Descriptions

A brief description of each specific plan required by environmental permit or elsewhere in this Contract such as spill control plan, solid waste management plan, wastewater management plan, air pollution control plan, contaminant prevention plan, biological resources and wetlands plan, Non-Hazardous Solid Waste Disposal Plan.

1.7.1.2 Duties

The duties and level of authority assigned to the person(s) on the job site who oversee environmental compliance, such as who is responsible for adherence to the EPP, who is responsible for spill cleanup and training personnel on spill response procedures, who is responsible for manifesting hazardous waste to be removed from the site (if applicable), and who is responsible for training the Contractor's environmental protection personnel.

1.7.1.3 Procedures

A copy of any standard or project-specific operating procedures that will be used to effectively manage and protect the environment on the project site.

1.7.1.4 Communications

Communication and training procedures that will be used to convey environmental management requirements to Contractor employees and subcontractors.

1.7.1.5 Contact Information

Emergency contact information (office phone number, cell phone number, and e-mail address).

SECTION 01 57 19 Page 14 June 27, 2023

1.7.2 General Site Information

1.7.2.1 Drawings

Drawings showing locations of proposed temporary excavations or embankments for haul roads, stream crossings, jurisdictional wetlands, material storage areas, structures, sanitary facilities, storm drains and conveyances, and stockpiles of excess soil.

1.7.2.2 Work Area

Work area plan showing the proposed activity in each portion of the area and identify the areas of limited use or nonuse. Include measures for marking the limits of use areas, including methods for protection of features to be preserved within authorized work areas and methods to control runoff and to contain materials on site, and a traffic control plan.

1.7.2.3 Documentation

A letter signed by an officer of the firm appointing the CQC System Manager and stating that person is responsible for managing and implementing the Environmental Program as described in this contract.

Include in this letter the CQC System Manager's authority to direct the removal and replacement of non-conforming work.

1.7.3 Management of Natural Resources

a. Fish and wildlife resources

b. Wetland areas

1.7.4 Protection of Historical and Archaeological Resources

a. Objectives

b. Methods

1.7.5 Protection of the Environment from Waste Derived from Contractor Operations

Control and disposal of solid and sanitary waste. Control and disposal of hazardous waste.

This item consist s of the management procedures for hazardous waste to be generated. The elements of those procedures will coincide with the Installation Hazardous Waste Management Plan. The Contracting Officer or delegated representative will provide a copy of the Installation Hazardous Waste Management Plan. As a minimum, include the following:

a. List of the types of hazardous wastes expected to be generated

b. Procedures to ensure a written waste determination is made for appropriate wastes that are to be generated

c. Sampling/analysis plan, including laboratory method(s) that will be used for waste determinations and copies of relevant laboratory certifications

SECTION 01 57 19 Page 15 June 27, 2023

d. Methods and proposed locations for hazardous waste accumulation/storage (that is, in tanks or containers)

e. Management procedures for storage, labeling, transportation, and disposal of waste (treatment of waste is not allowed unless specifically noted)

f. Management procedures and regulatory documentation ensuring disposal of hazardous waste complies with Land Disposal Restrictions( 40 CFR 268 )

g. Management procedures for recyclable hazardous materials such as lead-acid batteries, used oil, and similar

h. Used oil management procedures in accordance with 40 CFR 279 ;

Hazardous waste minimization procedures

i. Plans for the disposal of hazardous waste by permitted facilities; and Procedures to be employed to ensure required employee training records are maintained.

1.7.6 Operation and Prevention of Releases to the Environment

a. Name and location of Dredge Material Placement (DMP) sites to be used;

b. Operation plan for DMP sites, with discharge points if applicable;

c. Approximate available capacity (cubic meters volume) of the DMP sites;

d. Expectation of discharge of effluent to receiving waters;

e. Calculations for minimum holding times required for dredge slurry before effluent discharge to receiving waters, if applicable;

f. Description of dredge material handling equipment;

g. Method of transporting dredged materials to placement sites;

h. Expected dredging rate in cubic yards per day;

i. Schedule with hours of operation and estimated days to complete project

j. Best management practices to be implemented during dredging operations to prevent impacts to water quality;

k. Measures to meet the turbidity limits and other requirements in the

Memorandum of Understanding and/or General Order with the Central Valley Regional Water Quality Control Board (CVRWQCB). Contingency plans should be discussed in that explain what actions will be taken if minimum freeboard isn't being maintained, if turbidity requirements are not being met, or if an adverse incident occurs.

l. Plans for Notifications in the event of an unplanned release to the environment

1.7.7 Clean Air Act Compliance

1.7.7.1 Pollution Generating Equipment

Identify air pollution generating equipment or processes that may require federal, state, or local permits under the Clean Air Act. Determine requirements based on any current installation permits and the impacts of the project. Provide a list of all fixed or mobile equipment, machinery or operations that could generate air emissions during the project to the USACE Environmental Team.

In accordance with 40 CFR § 51.853(c)(2)(ix), the USACE has determined that the proposed agency action is exempt from the requirement to prepare a conformity determination with the State Implementation Plan under the Clean Air Act because the project consists of maintenance dredging, no new

SECTION 01 57 19 Page 16 June 27, 2023 depths are required, and disposal would be at approved disposal sites.

The Contractor shall be responsible for compliance with all Bay Area Air Quality Management District (BAAQMD) regulations and standards including obtaining a permit if necessary, for operation of a stationary source of air pollutants. Mechanical failures resulting in violations of particulate matter or sulfur compounds (Regulation #2) would be handled through application for a variance from the BAAQMD.

Unless "optimized" or diesel powered equipment with the "Best Available Control Technology" (BACT) emission devices are used, injection timing on diesel powered dredges and equipment shall be retarded two degrees from manufacturer's recommended setting to reduce air pollutant emissions.

Reformulated diesel fuel shall be used for all diesel powered dredges and equipment to reduce air pollutant emissions. Reformulated diesel fuel shall be a low sulfur, reduced aromatics diesel fuel meeting the following specifications, unless otherwise approved by the Contracting Officer or delegated representative: (1) Sulfur content less than 0.05 percent by weight and (2) Aromatics content less than 20 percent by volume Prior to dredging or construction operations, the Contractor shall submit certification from the fuel supplier or manufacturer stating that the fuel contents meet the above requirements and proof of reformulated diesel fuel purchase of the above specified fuel shall be submitted to the Contracting Officer or delegated representative.

Dredges and equipment shall not be allowed to idle when not required in performing the work.

1.7.7.2 Stationary Internal Combustion Engines

Identify portable and stationary internal combustion engines that will be supplied, used or serviced. Comply with 40 CFR 60 Subpart IIII, 40 CFR 60 Subpart JJJJ, 40 CFR 63 Subpart ZZZZ, and local regulations as applicable. At minimum, include the make, model, serial number, manufacture date, size (engine brake horsepower), and EPA emission certification status of each engine. Maintain applicable records and log hours of operation and fuel use. Logs must include reasons for operation and delineate between emergency and non-emergency operation.

1.7.7.3 Refrigerants

Identify management practices to ensure that heating, ventilation, and air conditioning (HVAC) work involving refrigerants complies with 40 CFR 82 requirements. Technicians must be certified, maintain copies of certification on site, use certified equipment and log work that requires the addition or removal of refrigerant. Any refrigerant reclaimed is the property of the Government, coordinate with the USACE Environmental Team to determine the appropriate turn in location.

1.7.7.4 Air Pollution-engineering Processes

Identify planned air pollution-generating processes and management control measures (including, but not limited to, spray painting, abrasive blasting, demolition, material handling, fugitive dust, and fugitive emissions). Log hours of operations and track quantities of materials used.

SECTION 01 57 19 Page 17 June 27, 2023

1.7.7.5 Compliant Materials

Provide the Government a list of and SDSs for all hazardous materials proposed for use on site. Materials must be compliant with all Clean Air Act regulations for emissions including solvent and volatile organic compound contents, and applicable National Emission Standards for Hazardous Air Pollutants requirements. The Government may alter or limit use of specific materials as needed to meet installation permit requirements for emissions.

1.8 LICENSES AND PERMITS

Obtain licenses and permits required for the dredging of the project and in accordance with FAR 52.236-7 Permits and Responsibilities. Notify the Government of all general use permitted equipment the Contractor plans to use on site.

a. The following certifications and approvals will be obtained by the Government prior to the start of dredging operations and are available upon request:

(1) CVRWQCB Memorandum of Understanding

(2) NMFS and USFWS Biological Opinions

1.9 SOLID WASTE MANAGEMENT PERMIT

Provide the Contracting Officer or delegated representative with written notification of the quantity of anticipated solid waste or debris that is anticipated or estimated to be generated by construction. Include in the report the locations where various types of waste will be disposed or recycled. Include letters of acceptance from the receiving location or as applicable; submit one copy of the receiving location state and local Solid Waste Management Permit or license showing such agency's approval of the disposal plan before transporting wastes off Government property.

1.9.1 Solid Waste Management Report

Monthly, submit a solid waste disposal report to the Contracting Officer or delegated representative. For each waste, the report will state the classification (using the definitions provided in this section), amount, location, and name of the business receiving the solid waste.

1.10 FACILITY HAZARDOUS WASTE GENERATOR STATUS

Not Used.

1.11 OPERATIONS AND WATER QUALITY MONITORING WORK PLAN

Within 15 days after NTP, the contractor must submit an Operations and Water Quality Monitoring Work Plan to the government. The plan shall cover the following:

(a) Name and location of Dredge Material Placement Sites (DMPSs) to be used.

(b) Operation plan for DMPSs, with discharge points if applicable.

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(c) Approximate volume of material in cubic meters to be placed at the DMPSs.

(d) Expectation of discharge of effluent to receiving waters.

(e) Calculations for minimum holding times required for dredge slurry before effluent discharge to receiving waters, if applicable.

(f) Description of dredge material handling equipment.

(g) Method of transporting dredged materials to placement sites.

(h) Expected dredging rate in cubic yards per day.

(i) Schedule with hours of operation and estimated days to complete project.

(j) Best management practices to be implemented during dredging operations to prevent impacts to water quality.

(k) Brief description of the equipment to be used for water quality parameter monitoring (such as brand, model number, etc.) and calibration procedures.

(l) Water Quality Field Forms that will be used.

(m) Measures to meet the turbidity limits and other requirements in the Memorandum of Understanding Resolution R5-2019-0041 (MOU) for hydraulic pipeline dredging) or WDR Order R5-2022-0052 (WDR, for clamshell dredging) with the Central Valley Regional Water Quality Control Board (CVRWQCB). Contingency plans should be discussed that explain what actions will be taken if minimum freeboard isn't being maintained, if turbidity requirements are not being met, or if an adverse incident, such as accidental discharge of dredged materials to the river, occurs.

1.12 Environmental Compliance Work Plan Review Meeting

After submittal of Operations and Water Quality Monitoring Work Plan but prior to workplan acceptance, the contractor shall schedule a meeting with the government to cover the following:

(a) Review and discuss the workplan to ensure understanding by all parties.

(b) Resolve any outstanding comments on the workplan.

(c) Review with contracted personnel the requirements of governing documents including but not limited to the CVRWQCB MOU or WDR and Biological Opinions.

(d) Review lines of communication with the government and expectations of coordination and communication.

(e) Discuss any other concerns pertinent to environmental compliance.

SECTION 01 57 19 Page 19 June 27, 2023

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 PROTECTION OF NATURAL RESOURCES

Minimize interference with, disturbance to, and damage to fish, wildlife, and plants, including their habitats. Prior to the commencement of activities, consult with the Government, regarding rare species or sensitive habitats that need to be protected. The protection of rare, threatened, and endangered animal and plant species identified, including their habitats, is the Contractor's responsibility. The following special status species are known to occur and could be affected within the construction area: green sturgeon, Chinook salmon, steelhead, valley elderberry longhorn beetle, and delta smelt, and giant garter snake.

Preserve the natural resources within the project boundaries and outside the limits of permanent work. Restore to an equivalent or improved condition upon completion of work that is consistent with the requirements of the USACE Environmental Team or as otherwise specified. Confine construction activities to within the limits of the work indicated or specified.

3.1.1 Flow Ways

Do not alter water flows or otherwise significantly disturb the native habitat adjacent to the project and critical to the survival of fish and wildlife, except as specified and permitted.

3.1.2 Vegetation

Except in areas to be cleared, do not remove, cut, deface, injure, or destroy trees or shrubs without the Contracting Officer or delegated representative's permission. Do not fasten or attach ropes, cables, or guys to existing nearby trees for anchorages unless authorized by the Contracting Officer or delegated representative. Where such use of attached ropes, cables, or guys is authorized, the Contractor is responsible for any resultant damage.

Protect existing trees that are to remain to ensure they are not injured, bruised, defaced, or otherwise damaged by construction operations. Remove displaced rocks from uncleared areas. Coordinate with the Contracting Officer or delegated representative and USACE Environmental Team to determine appropriate action for trees and other landscape features scarred or damaged by equipment operations.

3.1.3 Streams

Stream crossings must allow movement of materials or equipment without violating water pollution control standards of the federal, state, and local governments. Construction of stream crossing structures must be in compliance with any required permits including, but not limited to, Clean Water Act Section 404, and Section 401 Water Quality.

The Contracting Officer or delegated representative's approval and appropriate permits are required before any equipment will be permitted to ford live streams. In areas where frequent crossings are required, SECTION 01 57 19 Page 20 June 27, 2023 install temporary culverts or bridges. Obtain Contracting Officer or delegated representative's approval prior to installation. Remove temporary culverts or bridges upon completion of work, and repair the area to its original condition unless otherwise required by the Contracting Officer or delegated representative.

3.1.4 Fisheries and Water Quality Studies

The Government will conduct fisheries studies per the MOU and/or WDR Biological Opinions . The Government will conduct sampling and prepare documentation regarding fisheries and maintenance dredging. The Government will either utilize a fish screen at the point of discharge of the dredged material, sample scows (if dredging is conducted using an environmental clamshell), utilize a fish screen fashioned to work with an environmental clamshell, or other similar methods. The fish monitoring plan will be shared with the Contractor upon receipt. The Government may also additionally conduct non-invasive studies of fish in the water column which may entail limited access to the dredge vessel.

The Government contractor will conduct water quality studies as directed by MOU and/or WDR. The main goal is to ensure compliance with the MOU (for hydraulic dredging) or WDR (for clamshell dredging) with the CVRWQCB. The dredging Contractor will need to coordinate up to daily, or more if needed, with the Environmental Contractor to communicate in advance when and where dredging will be occurring, when new DMPS will be used, and when discharge from a DMPS will begin and end. The dredging contractor will need to modify, if needed, dredging practices in order to meet the turbidity limits and other requirements in the MOU or WDR, as required, with the CVRWQCB.

3.1.5 Water Quality Sampling

The Contractor shall perform water quality monitoring during dredging operations in accordance with the requirements of the Memorandum of Understanding R5-2019-0041 with the CVRWQCB for hydraulic dredging or WDR Order R5-2022-0052 with the CVRWQCB for clamshell dredging. The Contractor shall attend a Water Quality meeting prior to mobilization to ensure understanding of the MOU or WDR requirements. At a minimum, the Contractor's Project Manager and appropriate technical person, who will be conducting the water quality monitoring, shall be in attendance. The Contractor shall monitor multiple locations concurrently if multiple dredges are in use, two or more DMPSs are discharging water concurrently, or two or more DMPSs have standing water more than 6 inches in depth at the same time.

The third-party Contractor will be collecting water quality data from waters impacted by the dredging operations. Parameters measured may include water temperature, dissolved oxygen, pH, conductivity, turbidity and salinity. Grab water samples for lab analyses will also be collected when return water discharge to the river is occurring. The dredging Contractor will need to coordinate daily, or more if needed, with the Government ensure good internal communication between the dredging and water quality monitoring staff to communicate in advance when and where dredging will be occurring, when a new DMPS will be used, and when discharge from a DMPS will begin and end. The dredging Contractor will need to modify, if needed, dredging practices in order to meet the turbidity limits and other requirements in the MOU and/or WDR with the Central Valley Regional Water Quality Control Board (CVRWQCB).

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For the samples requiring laboratory analyses, the Contractor shall ship the samples to the government laboratory for analysis using the Government shipping account. All samples shall be held at a temperature between 0 and 4 degree Celsius (°C) until further processing. Laboratory costs and mailing costs of sending samples will be separately paid by the Government. The contractor shall drive short hold time samples collected Friday-Sunday to a lab in Rancho Cordova, CA (or approximate equivalent).

All relevant monitoring instruments shall be maintained and calibrated following the manufacturer's manuals and guidelines. The Contractor will have to meet the water quality criteria described in the MOU or WDR, as required, with the CVRWQCB.

3.1.5.1 Water Quality Monitoring at Dredging and DMPSs

Water quality monitoring shall be undertaken with visual observations, field parameter equipment and grab samples where required during dredging operations. Locations to be monitored include up and downcurrent of the Dredging sites, DMPS receiving water sites, DMPS discharge points, and within the DMPSs. Please note that upcurrent and downcurrent vary depending on whether the tide is incoming or outgoing, and will need to be determined and recorded in the field by the monitoring team.

Depending on if hydraulic pipeline or clamshell dredging is used, the frequency, specific location, and exact monitoring requirements are different. If hydraulic pipeline dredging is utilized, the contractor shall follow monitoring requirements laid out in the MOU (Resolution R5-2019-0041), and if clamshell dredging is utilized, the contractor must monitor according to Attachment B of CRWQCB Waste Discharge Requirements for Maintenance Dredging Operations Order R5-2022-0052.

3.1.5.2 Water Quality Monitoring Requirements

The Contractor shall submit all field notes and measurements to the COR and government environmental engineer biweekly via RMS and email, and as part of the closeout Water Quality Monitoring Report. The field notes shall be submitted in word and/or pdf and field measurements for the water quality parameters shall be submitted in pdf and excel spreadsheet format.

The contractor shall take and record GPS coordinates for monitoring locations in the field notes. The Contractor shall take photos, as needed, to document the field conditions and include them with the biweekly monitoring reports and final report.

The Contractor shall document if there is any discoloration in the water or objectionable odor at each monitoring station. The Contractor shall compare field measurements to the criteria identified in the MOU or WDR as required, and shall notify the government immediately when an exceedance of criteria or freeboard at a DMPS falling below 2 feet is observed. The Contractor shall also notify the government environmental engineer within 12 hours of when discharge from any DMPS has begun, including photos documenting discharge and receiving water. The contractor shall also notify the government immediately upon any adverse events potentially affecting water quality, such as a pipeline breakage, clamshell bucket malfunction, or other inadvertent leak or spill.

For DMPS monitoring, the contract includes observations and monitoring during dredged material placement at the sites as well as 3 weekly site visits after material placement at the DMPS has ceased, or until the site is empty, whichever comes first. The weekly DMPS inspections can cease when the dredger completes all dredging for the season, so for the last

SECTION 01 57 19 Page 22 June 27, 2023

Sacramento DWSC FY23 Maintenance Dredging W912P723B000700002

DMPS used, the contractor can assume no follow up weekly DMPS inspections.

The government lab will provide sample containers and shipping supplies.

Laboratory services and sample shipping costs will be paid for by the government. The contractor will have to follow "clean-hands, dirty-hands" protocol according to Surface Water Ambient Monitoring Program (SWAMP) Quality Assurance Program Plan (SWAMP, 2008), Method 1669 - Sampling Ambient Water for Trace Metals at EPA Water Quality Criteria Levels (USEPA, 1996) and Standard Operating Procedures for Conducting Field Measurements and Field Collections of Water and Bed Sediment Samples in SWAMP (MPSL-DFG, 2007) to take any required mercury and methyl mercury samples.

Due to short hold time and shipper limitations, for Biological Oxygen Demand (BOD) samples collected on a Friday - Sunday, the contractor will need to hand deliver the BOD samples to the laboratory in Rancho Cordova, CA (or approximate equivalent).

The…