2) 70Z08826B0030252-Station GoldenGateSausalito-SPECS_11Jun26.pdf

DEPARTMENT OF HOMELAND SECURITY

UNITED STATES COAST GUARD

CIVIL ENGINEERING UNIT OAKLAND

OAKLAND, CALIFORNIA 94612-5203

PSN 24143559

SPECIFICATIONS

FOR

MAINTENANCE DREDGE

AT

COAST GUARD STATION GOLDEN GATE

HORSESHOE COVE - SAUSALITO, CALIFORNIA

Civil Engineering Unit Oakland Signature Date Gabriel Posluszny

PROJECT MANAGER

Joel Tomco

SUPERVISOR, RE DESIGN TEAM B

Steven F. Osgood

TECHNICAL DIRECTOR

TABLE OF CONTENTS

SECTION TITLE PAGE

DIVISION 01 - GENERAL REQUIREMENTS 3

01 10 00 - GENERAL PARAGRAPHS 3

01 33 00 – SUBMITTALS PROCEDURES 13

01 35 29 – HEALTH, SAFETY, AND EMERGENCY RESPONSE PROCEDURES 17

01 35 43 – ENVIRONMENTAL PROCEDURES 20

DIVISION 35 – WATERWAY AND MARINE CONSTRUCTION 27

35 20 23 - DREDGING 27

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DIVISION 01 - GENERAL REQUIREMENTS

01 10 00 - GENERAL PARAGRAPHS

PART 1 GENERAL

1.01 BASE WORK - SCOPE OF WORK: Provide all labor, materials, and equipment necessary to dredge and dispose of up to 6,000 cubic yards (cy) of sediment from the authorized dredge footprint at U.S. Coast Guard (USCG) Station Golden Gate, located within Horseshoe Cove at East Fort Baker, in the City of Sausalito, California. Dredged material shall be removed using a mechanical dredge and transported by barge to be permanently disposed of at an appropriate placement site. Suitable dredged material may be placed at an in-Bay site such as Alcatraz Island Dredged Material Disposal Site (SF-11), at a permitted beneficial reuse site, or at an appropriate authorized upland location. The contractor is expected to mobilize for pre-dredge Eelgrass and hydrographic surveys as soon as possible and produce a Dredge Operations Plan (DOP) within 30 days of award (to include the surveys). The contractor shall begin dredging as soon as a notice to proceed is received following approval of the DOP, while implementing requirements and best practices identified in the attached permits to minimize impacts to federally listed species and protected habitat.

A. All in-water work must be completed during the in-water work window (IWWW) of June 1 to October 31 to minimize impacts on Environmental Safety Act (ESA) protected fish species per BCDC Permit No. C1999.004.03, (BCDC Permit) Special Condition II D.

B. Dredged sediment shall be permanently disposed of using a bottom dump barge. As part of the Long Term Management Strategy (LTMS) for placement of dredged material in the San Francisco Bay Region, the volume disposed of for the work described herein shall be limited by site per the Clean Water Act Section 401 Water Quality Certification and Order 2014-00271 (Section 401). In-Bay disposal shall not exceed 20% of total dredged material. Approved upland beneficial reuse sites shall receive no less than 62% of the total dredged material so long as the material dredged is suitable for upland placement. The remaining dredged material shall be disposed of at approved ocean sites.

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1) Approved In-Bay Disposal Sites: Limited to 20% of the total volume dredged.

(a) Drop disposal material within quadrants H, C, and I when utilizing Alcatraz Disposal Site (SF-11)

(b) Rotate disposal between the quadrants and drop the load in the approximate center of each quadrant.

2) Approved Beneficial Reuse Sites: Minimum of 62% of the total volume dredged.

(a) Placement of material at any permitted beneficial reuse site, such as Montezuma Wetlands Restoration Project (Montezuma) shall be overseen by the operator in compliance with site permit.

3) Deep Ocean Disposal (SF-DODS)or Approved Upland Disposal: Remaining volume dredged.

C. Dredge approximately 6,000 cy of sediment from the approximately 0.73-acre dredge footprint to the following authorized design depths with two (2) feet of overdepth allowance throughout. No dredging in other areas is authorized.

1) Entrance Channel: Depth of -10 feet MLLW (-12 feet with overdepth allowance)

2) Transition area: Depth of -10 to -12 MLLW (-12 to -14 feet with overdepth allowance)

3) Settling Basin: Depth of -12 feet MLLW(-14 feet with overdepth allowance)

1.02 OPTION BID ITEMS: Provide all labor, material equipment, tools, transportation, supervision, field verification, and test services necessary to do the same work as described in paragraph 1.01 of 01 10 00 and contract drawings for the following option bid items. The work shall also conform to the applicable requirements of the project specifications (including Division 1).

A. Option Bid Item #1: Provide, install, maintain, and remove silt curtain around the active dredging or protected vegetation area if required by the Water Quality Certification after pre-dredge survey has been evaluated.

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1.03 BASIS FOR BIDS: Mobilize and demobilize personnel and

equipment including the dredge, barge, scow, trucks, and other equipment necessary to complete the work. Conduct pre-dredge surveys to prepare a Dredge Operations Plan (DOP). Once notified, remove no more than the authorized volume of sediment and permanently dispose of sediment in accordance with all specification and permit conditions.

Once operations are complete, conduct post- dredge surveys to complete the final report. Include all direct costs not associated with the dredging operation.

A. Dredge Operations Plan (DOP): Utilize the data collected from the pre-dredge surveys to finalize and submit a detailed dredge and disposal operations plan for the entire sediment disposal event. For more information on the DOP, see Section 3 20 23 Part 1.02A. The DOP shall include at a minimum:

1) A list of equipment, personnel, environmental controls, means of transport, and means and locations of intermediate storage or handling of dredge sediment.

2) The volumes to be disposed of in total and at each intended disposal location. Include proof of acceptance for beneficial reuse of sediment at the authorized facilities. The Contractor is solely responsible for coordinating the scheduling, offloading logistics, and tipping fees associated with the authorized beneficial reuse sediment placement facilities (Montezuma and Cullinan) with the facility owners.

3) Contractor shall coordinate the usage of the dredge footprint and adjacent navigable waters with the USCG Station Golden Gate Command and all appropriate CG personnel. Operational plan must demonstrate how the Contractor will prevent navigational obstructions and maintain 24/7 emergency access for USCG Search and Rescue vessels.

4) Details of the mobilization effort including preparation of the dredging plant and all site controls. Note that mobilization shall not proceed after the DOP has been approved and dredge operations have been authorized. Environmental and site control measures, including silt curtains for turbidity if Option #1 is exercised, shall comply with Division 01

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35 04 Section 1.06 per the BCDC permit, Special Conditions II-F.

5) Demobilization including the dredging plant, site controls, and any other sign of the work described herein.

6) Dredging shall be scheduled to start 60 days after the USCG receives, reviews, and resubmits the DOP.

B. Dredging Event: Dredge and dispose of approximately 6,000 cy of sediment from the boat basin and entrance channel within the USCG Station Golden Gate located in Sausalito, Marin County, California. Dredging material shall be removed using a mechanical clamshell dredge to the permitted design depths. Transport the dredged sediment by barge to the approved disposal site(s). For more information see Section 35 20 23.

1) The removal, transport and disposal of dredged sediment shall be paid for at the established unit prices per cubic yard (cy) and based on the difference in volume between the pre- and post- dredge hydrographic surveys of the dredge prism. Payment for dredging, including disposal fees, shall not be made for dredging deeper than the allowable over-depth, dredging outside the authorized areas, or dredging and/or disposing of sediment in an unauthorized manner.

2) The estimated unit price dredge quantity is 6,000 cy at the Station Golden Gate boat basin footprint per the BCDC Permit and the 2026 Sample Analysis Report (SAR) report. It is the Contractor’s responsibility that dredging shall not exceed this amount.

C. Pre-Dredge and Post-Dredge Hydrographic Surveys and Computations: Submit results of hydrographic surveys taken by a certified third-party surveyor before and after dredging per Clean Water Act Section 401 826505 (Section 401). The hydrographic surveys and related drawings must include the dredged prism. For more information see Section 35 20 23 Part 1.06 through 1.09.

1) The pre-dredge and post-dredge survey comparison will be utilized as a formal drawing for the record and payment and will be included in the post-dredge report to be submitted to the regulatory agencies.

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D. Pre-Dredge and Post-Dredge Eelgrass Surveys: The contractor shall conduct a pre-dredge and a post-dredge eelgrass survey and provide the reports of findings in a post-dredge biological report per Section 401. For more information see Section 01 35 43 Part 1.06.

1) Surveys shall be completed by a qualified biologist and shall follow NOAA’s California Eelgrass Mitigation Policy and Implementing Guidelines (CEMP), October 2014.

2) Payment will be made for costs associated with performing a pre-dredge and a post-dredge eelgrass survey and producing the reports of findings at and near the project area. Unit of measure is two jobs.

E. Post-Dredge Project Report: This report will be submitted to the regulatory agencies to satisfy permit requirements. For more information see Section 35 20 23 Part 1.02E.

1) Contractor shall submit the post-dredge report within 25 days after the completion of the dredging activities authorized.

2) The post-dredge eelgrass survey shall be provided to NOAA Fisheries, CDFW and the Commission staff for review and approval 60 days prior to the dredge episode (BCDC Permit, Amendment No. Two)

1.04 LOCATION: The project site is located at USCG Station

Golden Gate, Sausalito, California.

1.05 SITE INVESTIGATION: Investigate the site per FAR 52.236-3 to ascertain the general and local conditions, which can affect the work or its cost. Since the site is secured, prior arrangements for site visits should be made by contacting the Contracting Officer.

1.06 KICK OFF MEETING: Within 10 days after award, the

Contractor shall be available for a project kick-off meeting.

1.07 NOTIFICATION OF START AND COMPLETION OF WORK: The

Contractor shall notify the Contracting Officer in writing five (5) business days in advance of intended date of commencement of work, and five (5) business days prior to the date that work will be ready for final

24143559 01 10 00 Page 8 inspection.

1.08 CONTRACTOR'S DAILY REPORT: Complete Form 17-148

"Contractor's Daily Report to Construction Manager" every day there is any type of contractor or subcontractor activity (including equipment or material delivery) at the construction site. The contractor shall include daily calculations of estimated quantity of material dredged and disposed. The daily reports shall be compiled during the week and e-mailed to the USCG Project Manager at the close of business each Friday.

1.09 FINAL INSPECTION AND ACCEPTANCE: When work is complete

and ready for final inspection, submit a written request for final inspection to the Contracting Officer at least 10 working days in advance of the date of final inspection. Final inspection will not be scheduled until all submittals have been approved. Note inspection and acceptance will be required separately for both dredging and disposal.

1.10 CONTRACTOR SECURITY REQUIREMENTS: The Contractor shall

provide a list of all on-site personnel, including sub-contractors (including second and third-tier subcontractors) and suppliers, to the Contracting Officer. The contractor shall update this list when changes occur. Contractor personnel not listed may be denied access to the USCG facility. Contractor personnel will be restricted to designated working areas. Any personnel violating this policy may lose access to the USCG facility. Contractor personnel shall have photo identification at all times while working on Coast Guard facilities.

Contractor and delivery personnel may be required to present personal photo identification to gain access to a USCG installation. If identification does not indicate United States citizenship, USCG Security may require proof of the legal right to work in the United States.

Contractor and delivery personnel also may be subjected to an immigration status and outstanding criminal warrants check.

The Real ID Act of 2005 established minimum security standards for license issuance and production and prohibits Federal agencies from accepting, for certain purposes, driver's licenses and identification cards from states not meeting the Act's minimum standards. Anyone

24143559 01 10 00 Page 9 requiring access to a military facility under this contract, to include subcontractors, who holds a driver's license from any state without approved licenses will be required to provide identification other than that driver's license to gain access. Government IDs annotated with “Federal Limits Apply” will not be accepted for access purposes. It is the responsibility of the Contractor to ensure that their personnel have federally acceptable personal photo identification and comply with any other requirements for base access.

Contractors shall provide the Contracting Officer's Representative with 24 hours of advance notice of every delivery to the site (e.g., concrete, lumber, parts, etc.) and provide the company name, delivery person, and phone number of the firm(s) making deliveries. All vehicle access to government property requires vehicle registration and proof of liability insurance, otherwise access to the USCG facility may be denied.

At least 7 days prior to commencing work the Contractor shall verify and ensure the USCG Security Office knows of the date and time the work will commence.

1.11 CONTINUITY OF FACILITIES OPERATION: The Contractor will

be working on a military installation. Become familiar with and obey fire, traffic, and security regulations.

Personnel shall not stray from the immediate area of work nor direct avenues of ingress and egress unless authorized in advance by the Contracting Officer.

A. Scheduling: Provide clear timelines for project work to minimize interference with the facility’s normal operations. Notify the Contracting Officer and site contact 2 weeks in advance of any mobilization effort or potential obstruction. Confirm arrival at the site within 48 hours with site POC and COR. Perform all on-site work, including deliveries, between the hours of 7:00 AM and 5:00 PM, Monday through Friday (Federal Holidays excluded), unless otherwise approved by the Contracting Officer and the Unit Commanding Officer.

B. Coordination: USCG Station Golden Gate is home to four search and rescue boats that support its mission.

Maintain constant communication with the Officer in Charge (OIC) and the COR to establish and maintain clear safety zones around equipment and vessels. Contractor equipment and personnel shall not impede access for USCG

24143559 01 10 00 Page 10 vessels nor hinder vessel access to and from their moorings and the navigational channel.

C. Emergency Response: The Contractor shall be capable of moving all equipment within approximately 15 minutes including dredge, barge, and support vessels to accommodate emergent USCG operations.

D. Upon completion of the work, the Contractor shall promptly remove all equipment, temporary navigational aids, survey markers, and materials from the site.

1.12 HAZARDOUS MATERIAL IDENTIFICATION: Submit Safety Data

Sheets (SDS) for any materials defined as hazardous under the most current revision of Federal Standard 313. One copy of each MSDS shall be submitted to the Contracting Officer’s Representative no later than the delivery date of the product. Two copies shall be submitted to the Contracting Officer.

1.13 SAFETY: During the execution of this contract, the

Contractor shall conform to the rules and regulations as set forth by OSHA Safety and Health Standards, 29 CFR Part 1926 - Safety and Health Regulations for Construction. When the standards differ, the more restrictive standard shall apply. The contractor shall provide barriers, temporary fencing, trench covers, etc.

wherever work could cause injury to workers, visitors, USCG personnel, or dependents. An Accident Prevention Plan shall be submitted in accordance with Section 01 35 29, paragraph 1.05.

1.14 CLEANUP: The Contractor shall keep the work area, including storage area, free from accumulations of waste materials daily and comply with all federal, state, and local regulations pertaining to storage, transport and disposal of wastes.

A. All incidental daily refuse generated by the Contractor’s crew and vessels shall be contained onboard and disposed of legally at an off-site facility. The Contractor shall not use the USCG waste disposal facilities including garbage cans, trash piles, or dumpsters.

B. Any artificial debris (e.g., submerged timber, wires, tires) incidentally recovered by the clamshell bucket during dredging operations shall be segregated from the dredged sediment. This debris becomes the property of the

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Contractor and must be disposed of at a licensed, upland disposal facility. For more information see Section 35 20 23 Part 1.03.

1.15 TEMPORARY FACILITIES:

A. Storage: If needed, the Contractor may be provided a storage area in a location determined by the Contracting Officer. The Contractor shall be responsible for restoring the area to its original condition at the completion of work. The Contractor shall be responsible for protecting materials stockpiled against weather, damage, theft, and other risks of loss. The USCG assumes no responsibility for material or equipment left in the storage area.

B. Sanitary Facilities: There may not be toilet facilities available for Contractor use at the job site. The Contractor shall provide their own facilities, including hand washing facilities, in accordance with 29 CFR 1926, Subpart D, paragraph 1926.51 (c)(1) and (f)(1).

C. Availability of Utility Services: No commercial utilities are available.

1.16 EXISTING UTILITIES: The existence of any other utility

locations and cable crossings is unknown. The authorized dredge footprint and disposal site are not anticipated to contain underground utilities. The Contractor shall verify all utility and cable crossing locations prior to dredging.

1.17 ATTACHMENTS: Documents and drawings to be used in

conjunction with these specifications are listed below.

The files are the property of the Government and shall not be used for any purpose other than that considered by the specification. The work shall conform to the documents and drawings listed below which form a part of these specifications.

Number Title

No.1 Integrated Alternatives Analysis No.2 Eelgrass Survey Report No.3 Sampling Analysis Report No.4 BCDC Permit, C1994.004.03

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No.5 Section 401 WQC, 826505 No.6 USACE Permit, SPN-2014-00271

1.18 ENVIRONMENTAL REGULATORY PERMITS: The contractor shall

comply with all permits received by the USCG to perform the work as detailed in this specification and in accordance with the attached project documents. More details about permit requirements can be found in Section 01 35 43.

1.19 SEDIMENT ANALYSIS: The material to be removed is carried along the shoreline by natural currents, wind, and waves.

The attached SAR report was completed for this site in 2026 according to the procedures specified by the Dredged Material Management Program (DMMP).

1) Sediment samples were characterized as fine-grained depositional or disposal material exhibiting low concentrations of chemical constituents.

2) Sediment chemistry levels were below the trigger levels for bioaccumulation.

3) Toxicity analysis exhibited no acute sediment, standard elutriate, or MET elutriate toxicity for any of the tested organisms.

4) Station Golden Gate dredge area sediment appears to be suitable for unconfined aquatic disposal for in-Bay disposal or beneficial reuse as cover.

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PART 3 EXECUTION

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END OF SECTION

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01 33 00 – SUBMITTALS PROCEDURES

PART 1 GENERAL

1.01 GENERAL

A. Forward all submittals, except as stated elsewhere, to the Contracting Officer by email within 10 business days from date of award, unless indicated otherwise in this specification. Submittals shall be accompanied with the USCG furnished material submittal form in PDF Format.

Unless noted otherwise, all submittals shall be provided in legible, high quality electronic image format. Provide these submittal images to the Contracting Officer, the Construction Manager, and the Contracting Officer's Representative (COR) simultaneously. The Contracting Officer will e-mail approval or disapproval of submittals, within 10 calendar days after receipt.

B. The COR, Construction Manager, and Project Manager will review all submittals for compliance with these specifications. The Contracting Officer shall approve submittals before acceptance.

C. Approval of submittals, and corrections or comments made during the review, do not relieve the Contractor from compliance with the requirements of the plans and specifications or permit coordination.

D. The schedule of submittals listed in the submittal register (Table 1) and in the individual sections are the submittals required for this contract. Unsolicited submittals may be returned to the Contractor without review.

1.02 CERTIFICATES OF COMPLIANCE: Certificates of compliance

shall be signed by an authorized officer of the manufacturing company furnishing the material which states that the material being furnished meets all requirements of these specifications and referenced specifications.

1.03 DESIGN DRAWINGS: Design drawings shall be provided in

AutoCAD drawing file and PDF formats. When saving the AutoCAD drawing file the drawing shall be saved in AutoCAD 2020 drawing (*.dwg) format if an AutoCAD program is newer than AutoCAD 2020 is used by the contractor.

Design drawings shall be prepared, completed, and

24143559 01 33 00 Page 14 accurate. All plan views, elevations, sections, details, profiles, schedules, etc. shall be as complete as necessary to carry out the purpose of the drawing.

Drawings (including Drawing Files provided by the USCG for use in design development) shall comply with the most current USCG CAD standards (i.e. Job Guide for Drawing Format and Handling, SILC-JG-36-51 73 15-02) and templates before the Drawing Files will be accepted by the USCG. Drawings shall be submitted by email.

A. Files to be provided upon the request:

1) Job Guide for Drawing Format and Handling, SILC-JG-36- 51 73 15-02;

2) USCG CEU Oakland Title Block Templates (e.g. G-001 & G-002).

B. General Compliance of Drawing Format and Handling: See Sections 1.8.1 to 1.8.3 of the Job Guide for more requirements.

1) All drawing sets shall have a cover sheet and sheet index.

2) All unattached External references (XREFs) shall be deleted. All used XREFs shall be bound to each Drawing Sheet File using the “Insert” option, so that no external files will be required to view the drawings.

3) Each Drawing Sheet File shall contain no more than one layout tab. The layout tab shall be named to match the Sheet Identification (ID) (e.g. “G-001”).

4) Confirm only USCG CAD Standard Dimension and Text Styles are being used.

5) Confirm only USCG CAD Standard Multileader and Table Style are being used.

6) Purge the drawings of un-used block definitions, layers, line types, etc. to keep file size to a minimum and simplify product for future users.

C. Final Plan Review: Upon review by the Coast Guard of the final plans, CAD files shall be provided in conjunction with PDF’s. All XREFS shall be bound to each sheet file.

Cover sheet drawing (e.g. G-001) shall be stamped by

24143559 01 33 00 Page 15 either a Professional Engineer or Registered Surveyor of the respective discipline indicated by the drawing and who is registered in the state where the work will be constructed.

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PART 3 EXECUTION

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TABLE 1

CEU OAKLAND SUBMITTAL REGISTER

PSN:

24143559

CONTRACT NO.:

TBD

PROJECT TITLE AND LOCATION :

Maintenance Dredging at Station Golden Gate Sausalito, California

Submittal Reference Location ACTION DATE

NO.

SPEC.

SECTION

SECTION PAGE DESCRIPTION OF SUBMITTAL DATE REQUIRED DISAPPROVED APPROVED

01 01 10 00 1.06 7 Kick Off Meeting 10 days after award 02 01 10 00 1.08 7 Contractor’s Daily Report Daily 03 01 10 00 1.10 7 Contractor Security Requirements 10 days after award 04 01 34 43 1.06(C) 25 Eelgrass Survey: Pre-dredge NLT 30 days after award 05 01 34 43 1.06(C) 25 Eelgrass Survey: Post-dredge NLT 5 days after dredge 06 35 20 23 1.02(A) 27 Dredge Operations Plan NLT 30 days after award 07 35 20 23 1.02(B) 29 Solid Debris Management Plan NLT 30 days after award 08 35 20 23 1.02(C) 29 Hydrographic Survey: Pre-dredge NLT 30 days after award 09 35 20 23 1.02(C) 29 Hydrographic Survey: Post-dredge NLT 5 days post dredge 10 35 20 23 1.02(D) 30 Dredge Quantity Calculations NLT 25 days post-dredge 11 35 20 23 1.02(E) 30 Post Dredge Project Report NLT 25 days post-dredge

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01 35 29 – HEALTH, SAFETY, AND EMERGENCY RESPONSE PROCEDURES

PART 1 GENERAL

1.01 SECTION INCLUDES: This section applies to steps taken by the contractor to comply with the health and safety requirements listed herein. The Contractor shall comply with all applicable federal, state, and local laws and regulations. The ultimate responsibility for identifying applicable requirements and protecting contractor employees or sub-contractors rests with the primary contractor.

1.02 APPLICABLE PUBLICATIONS: The publications listed below

form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

A. American National Standards Institute (ANSI):

Z359 Series Fall Protection Code, Version 2 (Z359.0-2007, Z359.1-2007, Z359.2- 2007, Z359.3-2007, Z359.4-2007, Z359.6-2009, Z359.12-2009, Z359.13-2009, Z359.14-2012, and historical Z359.1-1992 (R1999)

B. Environmental Protection Agency (EPA) Regulations:

40 CFR 204 Noise Abatement Program for Construction Equipment

40 CFR 302.4 Designation of Hazardous Substances

C. U.S. Army Corps of Engineers (USACE):

EM 385-1-1 Safety and Health Requirements Manual

D. U.S. Department of Labor Occupation Safety and Health Administration (OSHA) Regulations:

29 CFR 1910.1200 Hazard Communication

29 CFR 1926.106 Working Over or Near Water

29 CFR 1926.453 Aerial Lifts (Construction Specific)

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29 CFR 1926 Subpart M Fall Protection

29 CFR 1926 Subpart P Excavations

1.03 REFERENCE STATUTES: The statutes listed below form a part of this specification to the extent referenced.

Noise Control Act (NCA) (42 U.S.C. §§ 4901 to 4918)

1.04 DEFINITIONS

A. Sediment: Soil and other debris that has been eroded and transported by runoff water.

B. Solid Waste: Rubbish, debris, and other discarded solid materials resulting from industrial, commercial, and agricultural operations, and from community activities.

Solid waste may also include non-sewage liquids.

C. Rubbish: A variety of combustible and noncombustible wastes such as paper, boxes, glass, crockery, metal, lumber, cans, and bones.

D. Debris: Includes combustible and noncombustible wastes, such as ashes, waste materials that result from construction or maintenance and repair work, leaves, and tree trimmings.

E. Chemical Wastes: Includes salts, acids, alkalines, herbicides, pesticides, and organic chemicals.

F. Sewage: Wastes characterized as domestic sanitary sewage.

G. Garbage: Refuse and scraps resulting from preparation, cooking, dispensing, and consumption of food.

H. Oily Waste: Includes petroleum products and bituminous materials.

I. Hazardous Material (HM): Chemicals defined by OSHA 29 CFR

1910.1200 and under the U.S. Department of Transportation (DOT) regulations (Title 49 CFR Parts 100 through 199) which are determined by the Secretary of Transportation to present risks to safety, health, and property during transportation. The DOT regulations include requirements for shipping papers, package marking, labeling, transport vehicle placarding, and training of personnel handling hazardous materials.

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1.05 Accident Prevention: Submit a copy of your “Accident

prevention” or “Injury and Illness Prevention” in the dredge operations plan.

1.06 Mobile Equipment Operator List: A list of qualified

operators for all mobile equipment that will be brought onto the job site with employee name(s), qualifications, and specific equipment to be operated shall be provided to the Contracting Officer prior to equipment operation.

(This includes forklifts, cranes, motorized lifting device, etc.). This is also to be included in the dredge operations plan.

1.07 NOISE: Make the maximum use of "low-noise-emission

products" as certified by EPA and described at 40 CFR Part 204. No blasting or use of explosives is permitted.

Comply with applicable portions of the Noise Control Act (NCA). The Contractor is responsible for complying with all other federal, state, and local noise control laws and regulations.

1.08 WORKING OVER OR NEAR WATER: When working over or near

water, comply with 29 CFR 1926.106.

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01 35 43 – ENVIRONMENTAL PROCEDURES

PART 1 GENERAL

1.01 SECTION INCLUDES: This section applies to all necessary

steps taken by the Contractor to comply with the environmental protection requirements listed herein.

1.02 APPLICABLE PUBLICATIONS: The publications listed below

form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

A. Environmental Protection Agency (EPA) Regulations:

40 CFR 122 National Pollution Discharge Elimination System

40 CFR 261 Identification and Listing of Hazardous Waste

1.03 REFERENCE STATUTES: The statutes listed below form a part of this specification to the extent referenced.

Clean Air Act (CAA) (42 U.S.C. §§ 7401 to 7642)

Clean Water Act (CWA) (33 U.S.C. §§ 1251 to 1387)

Coastal Zone Management Act (CZMA) (16 U.S.C §§ 1456)

Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) (42 U.S.C. §§ 9601 to 9675)

Endangered Species Act (ESA) (16 U.S.C. §§ 1531)

Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) (7 U.S.C. §§ 136 to 139y)

Federal Water Pollution Control Act (CWA) (33 U.S.C. §§ 1251)

National Environmental Policy Act (NEPA) (42 U.S.C. §§ 4321-4347)

Toxic Substance Control Act (TSCA) (15 U.S.C. §§ 2601 to 2654)

Resource Conservation and Recovery Act (RCRA) (42 U.S.C.

§§ 6901 to 6991i)

24143559 01 35 43 Page 21

1.04 ENVIRONMENTAL PROTECTION REQUIREMENTS: Provide and

maintain environmental protection during the life of the Contract to control pollution or to correct conditions that develop during construction. Comply with all Federal, State, and local laws and regulations pertaining to water, air, soil, and noise pollution.

1.05 PROTECTION OF NATURAL RESOURCES

A. Permits: The Government has received permits and concurrences from the U.S. Army Corps of Engineers for compliance with Section 404 of the Clean Water Act, Section 10 of the Rivers and Harbor Act, Section 103 of the Marine Protection, Research, and Sanctuaries Act (SPN-2014-00271), and the San Francisco Bay Regional Water Quality Certification and Order for compliance with Section 401 of the Clean Water Act (SPN-2014-00271/ 2 CW459070). The project shall adhere to Section 307 of the Coastal Zone Management Act, the U.S. Fish and Wildlife Service and National Marine Fisheries Service, Section 7 of the Endangered Species Act, Marine Mammal Protection Act, and Magnuson-Stevens Fisheries Conservation and Management Act. Copies of the environmental permits provided as an Attachment.

The terms and conditions, best management practices, and avoid measures include, but are not limited to, turbidity monitoring, solid debris management, spill prevention plans, etc.

The Contractor shall comply with all requirements under terms and conditions set forth in the environmental permits and authorizations issued for this project.

Copies of these environmental permits are provided with these specifications as attachments. The Contractor shall familiarize personnel with these, and any other permits issued for this project and comply with all requirements under the terms and conditions set forth therein. The contractor will be responsible for payment of fines resulting from violations of conditions set forth in the above permits.

B. Preserve the natural resources within the project boundaries and within the vicinity of performed under this Contract in their existing condition or restore to an equivalent or improved condition upon completion of the work. Repair or restore to original condition landscape features scarred or damaged by equipment or

24143559 01 35 43 Page 22 operations. Obtain Contracting Officer's approval before repair or restoration. Confine construction activities to areas defined by the work schedule, drawings, and specifications. Federal Acquisition Regulation clause 52.236-9 applies.

All project activities must be executed in compliance with the 2015 Biological Opinion (BiOp) for the Long Term Management Strategy for the Placement of Dredged Material in the SF Bay Region. These conservation measures include:

1) Compliance with environmental work windows.

2) Best practices for all dredgers (minimize dredging and disposal, minimize impacts of dredging, minimize impacts of disposal)

3) Best practices for hydraulic dredging if used. See BiOp, Section 1.3.4 at San Francisco District > Missions > Dredging Work Permits > LTMS.

C. Eelgrass Vegetation: An eelgrass survey was conducted in July 2024 (WRA, Inc 2024) to identify eelgrass within the vicinity of the proposed dredge area. The eelgrass survey identified a complete loss of vegetated eelgrass habitat in the study area since 2017. Given the lack of eelgrass detection within the entirety of Horseshoe Bay, the decline is likely due to environmental conditions in Horseshoe Bay, such as turbidity, salinity, or mechanical force.

According to this eelgrass survey, proposed dredging activities are unlikely to directly disturb existing eelgrass vegetation. Eelgrass surveys shall be conducted prior to and post dredging (see Section 1.06, below). If new eelgrass beds are identified, the Contractor will observe all best management practices to avoid disturbing or negatively impacting this vegetation.

Vessel operators will not drop anchors/spuds within identified eelgrass beds. Further, a 10-foot buffer around eelgrass beds will be maintained by vessel operators and dredge equipment. The attached Water Quality Certification permit includes direction for monitoring turbidity. If turbidity increases beyond what is allowable is detected, all work will stop. If best management practices do not prevent further disturbance https://www.spn.usace.army.mil/missions/dredging-work-permits/ltms/ https://www.spn.usace.army.mil/missions/dredging-work-permits/ltms/

24143559 01 35 43 Page 23 to the ecosystem, the Contractor shall deploy a full-depth turbidity curtain surrounding the work area to minimize the effects of suspected sediments to nearby eelgrass bed.

D. Except in areas indicated to be cleared, do not remove, cut, deface, injure, or destroy vegetation without special written permission from the Contracting Officer.

E. Construction equipment is to be kept in good repair, without leaks of hydraulic or lubricating fluids. If such leaks or drips do occur, they shall be cleaned up immediately. Drip pans shall be utilized when vehicles are parked. Confine equipment maintenance and/or repair to one location. Control runoff in this area to prevent contamination of soils and water.

F. At or before Contract completion, temporary construction facilities such as stockpiles of excess or waste materials and all other vestiges of construction. Restore all disturbed areas to their original condition.

G. For all work in or over water habitats, provide a debris boom. Take precautions to prevent construction materials from entering the water and immediately remove any material that enters the water in the work area. Report spills of any liquids into the water habitat and take steps to preclude spread or dissipation of spilled liquids.

H. The Contractor shall maintain an adequate spill response kit (including absorbent pads and floating oil containment booms) on the primary dredge vessel and support tugboat. All hydraulic hoses must be maintained to prevent leaks. In the event of a petroleum spill, the Contractor must immediately deploy containment booms, notify the USCG COR, and contact the National Response Center (NRC).

1.06 EELGRASS PROTECTION: Water quality monitoring and

turbidity controls (e.g., silt curtains) are required to protect existing eelgrass beds in the area surrounding the dredge footprint. Controls at in-water disposal sites are not required and compliance shall be verified solely through the Dredging Quality Management (DQM) GPS tracking system as outlined in the DOP to be included in the post-dredge report.

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A. Visual Monitoring: Log baseline condition daily and active dredging condition at a minimum of every loading event. Excessive turbidity can be defined as a continuous, visible sediment plume (distinctly contrasting with ambient water color/clarity) extending greater than 100 meters from the active dredge vessel or the receiving scow.

1) If the pre-dredge eelgrass survey confirms that no eelgrass beds exist within 250 meters of the dredge footprint, the Contractor shall conduct regular visual monitoring of the water surface during all dredging operations.

2) If new eelgrass beds are identified within 250 meters of the dredge footprint, observations must be made during every scow loading event and at a minimum every 1 hour during dredging operations.

3) If any plumes are identified, the Contractor shall immediately cease dredging, notify the COR, and document the event and corrective actions taken for the daily report.

4) Daily reports shall include a log of all visual observations with verification that the buffer zone remained clear in between and shortly after each barge traversal. Include photographic record for each log entry.

5) If plumes are regularly identified, the Contracting Officer reserved the right to mandate formal, instrumented (metered) turbidity testing at no additional cost to the Government.

B. Physical Containment: If Option #1 is exercised, the Contractor shall deploy and maintain a full-depth curtain (silt curtain) surrounding any active dredging operation.

The silt curtain must be:

1) Properly deployed prior to the commencement of any dredging.

2) Rated for the tidal currents of Horseshoe Cove and installed in a manner that prevents the escape of suspended sediments from the dredge footprint.

3) Enclose the entire work area, generally no less than

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50 feet and no more than 100 feet from the active dredge footprint.

4) Avoid proximity to existing eelgrass bed. Anchors and ballast chains shall not be allowed to drag across known eelgrass habitat.

C. Eelgrass Surveys: The Contractor shall perform eelgrass surveys to determine the presence of eelgrass (Zostera marina and Zostera pacifica) within the dredge footprint and surrounding area, and to provide a comparative and quantitative assessment of the eelgrass communities within the area of potential effect prior to, and after dredging. The surveys shall be conducted in conformance with the requirements of both the California Eelgrass Mitigation Policy (CEMP) (NOAA 2014) and Eelgrass/Macroalgae Habitat Interim Survey Guidelines (WDFW 2008). The eelgrass surveys shall a 45-meter and 250-meter buffer zone outside of the dredge footprint perimeter. The report shall include calculated square meters of eelgrass in the project and buffer areas; a map that clearly show the location(s) of any eelgrass beds;

and a brief discussion of the survey methods, survey results relative to the survey parameters (spatial distribution, aerial extent, percent vegetated cover, and turion density), observation of invasive species (caulerpa sp.), and recommendations. Raw data shall also be included in the report.

Submit the name and qualifications of the Firm that will conduct the eelgrass surveys for approval prior to the kickoff meeting.

1) The pre-dredge eelgrass survey shall be performed as soon as possible and no later than 30 days after award and shall record all presence of eelgrass (eelgrass density and eelgrass extent). Dredging cannot be initiated until after the survey has been completed.

2) The post-dredge eelgrass survey shall be completed within 5 days after completion of dredging and shall document the presence/absence of eelgrass and any potential effects from the dredging operations. The results of the eelgrass surveys shall be submitted in report form no later than 25 days after completion of work.

1.07 EROSION AND SEDIMENT CONTROL MEASURES:

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A. Borrow pits are not permitted on Government property.

B. Provide necessary controls to prevent visible or measurable erosion from leaving the construction site.

C. Provide temporary protection for erodible soils.

Immediately protect side slopes and back slopes upon completion of rough grading. Plan and conduct all earthwork to minimize duration of exposure of unprotected soils.

1.08 CONTROL AND DISPOSAL OF WASTES: With the exception of

materials specifically indicated or specified to be salvaged for reuse in construction, or turned over to the Government, all wastes and demolished materials become the contractor's property and shall be removed from the job site daily.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

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DIVISION 35 – WATERWAY AND MARINE CONSTRUCTION

35 20 23 - DREDGING

PART 1 GENERAL

1.01 SECTION INCLUDES: This section applies to all work

required for dredging and disposal of sediment. Perform all operations necessary for the removal of all sediments to the required dimensions, the disposal thereof, and all operations thereto.

1.02 SUBMITTALS:

A. Dredge Operations Plan (DOP): This submittal is required 60 calendar days before the proposed commencement of dredging. Contractor shall provide the DOP within 30 days of award and must be approved by the Corps prior to initiating the work. The detailed plan shall cover the entire dredging and dredge sediment disposal operation.

The DOP shall be a document that explains in writing the exact procedures to be followed and which materials and equipment shall be used by the Contractor to accomplish the required work. It shall include a list of equipment, environmental controls, means of transport, and means and locations of intermediate storage or handling of dredge sediment.

The DOP shall adhere to the permit requirements from the U.S. Army Corps of Engineers and shall include, at a minimum:

1) Corps permit number and dredge episode number.

2) Copy of the dredging contract and description of the scope of working including identification of the work as maintenance dredging.

3) Name and contact information of Contractor’s representative on site.

4) Mobile equipment operator list.

5) Dredging start and completion dates.

6) Names of vessels, dump scow identifications, bin or barge capacities

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7) Detailed discussion of the Contractor’s proposed dredging method as governed under BCDC Permit Special Conditions II, including drawings of the areas authorized to be dredged, procedures and dredging equipment, cross-sections, volume to be dredged, and design depths including overdepth based on MLLW.

8) Controls being established to ensure that dredging operations occur within authorized area and at the authorized depths.

9) Controls being established to ensure that disposal of the dredged material at the disposal sites is at the assigned location and depth.

10) Method of determining electronic positions of dredge or dump scow during entire operation at dredge site, disposal site, and enroute to and from disposal site.

11) Discussion of the sediment quality, explaining why the sediment is suitable for the proposed disposal and/or beneficial reuse placement sites.

12) Procedures for conducting the pre- and post-dredge hydrographic surveys.

13) The pre- dredge hydrographic survey with volume calculations.

14) Procedures for monitoring the progress and quantity of dredging during the execution of the work.

15) Identification of the disposal location(s) including associated dates and quantities of each sediment disposal proposed.

16) Discussion as to how the proposed disposal volumes are consistent with the LTMS.

17) Procedures for transporting the sediment to the disposal location.

18) Notice to Mariners.

19) Solid debris management plan.

20) Accident/spill prevention and control plan.

21) Any specific conditions listed on attached permits.

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Provide plans and procedures should gale force winds or higher be forecast. Precautions shall include, but not be limited to, closing all openings, removing all loose materials, tools and equipment from exposed locations, anchoring and tying down barge, dredge, and/or pipeline.

The Contractor must acknowledge that the BCDC staff shall be allowed to board any vessel under way associated with dredging or disposal and subject to reasonable safety and operational considerations (PCDC Permit, Amendment No.

One).

Results of any barge overflow, effluent water quality or other testing required by the Water Board shall be submitted in writing to Commission staff at the same time such testing is submitted to the Water Board (PCDC Permit, Amendment No. One).

Submit weekly Disposal Site Verification Logs (DSVL) by noon Monday via e. The DSVL enumerates work accomplished during the preceding week.

B. Solid Debris Management Plan: Submit proposed measures to ensure that solid debris generated during any authorized dredging, demolition or construction operation is retained and properly disposed.

1) Mechanically dredged material shall be passed through a debris grid with a maximum opening size of 12 inches by 12 inches that will cover the entire loading area of the dump cow. Everything that does not pass through the grid will be considered solid debris and shall be promptly removed from the grid and disposed of at an upland disposal site suitable for the material.

C. Hydrographic Surveys: Submit results of hydrographic surveys taken before (pre) and after (post) dredging performed by a third-party licensed surveyor to certify their accuracy. The hydrographic surveys and related drawings must include the dredged prism. More information provided in Section 1.06, below.

1) The pre-dredge survey submittal is required no later than 30 days after award.

2) The post-survey submittal is required prior to final acceptance of the dredging work and 25 days after the last disposal activity.

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3) A copy of the Post-Dredge survey shall be sent to the National Ocean Service for chart updating.

D. Dredge Volume Calculations: Submit results of actual gross volume of dredged sediment. Cover sheet shall be signed, dated, and sealed by licensed surveyor.

E. Post-Dredge Project Report: The Contractor shall provide the COR, construction manager, and project manager with a notice of completion within 24 hours of the last sediment deposit. Within 25 days after the completion of the dredging, the Contractor shall submit a post-dredge report to document the project’s execution. This report will be submitted to the regulatory agencies to satisfy permit requirements. At a minimum, the report will include:

1) Corps permit number and dredge episode number.

2) Dates of commencement and completion of work.

3) Post-dredge survey maps of the dredge footprint.

4) Calculated final dredging volume (in cubic yards) based on the pre- and post-dredge surveys. Explain any variation in quantities greater than 15% beyond estimated quantities or dredging deeper than is permitted (design plus overdepth allowance).

5) Disposal locations and volume of dredged sediment placed at each placement location.

6) As appropriate, a discussion of the actions and/or measures implemented to prevent exposure of the contaminated z-layer to aquatic life post dredging.

7) Should testing and analysis of the z-layer from the project area show elevated levels of contaminants that may pose a threat to aquatic life, coordinate with COR and DMMO on a suitable plan, with a timeline, on actions and/or measures the Contractor shall implement to prevent exposure of the contaminated z-layer to aquatic life post dredging. This plan must be coordinated before the episode approval request package is submitted to the Water Board.

8) Copies of all hydrographic surveys.

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9) Required monitoring logs and any noncompliance issues.

10) Environmental permitting compliance documentation

1.03 ARTIFICIAL OBSTRUCTIONS: The USCG anticipates debris such as, but not limited to, metal bands, pallets, pieces of broken cable, rope, hose, and broken piles. The Government has no knowledge of existing wrecks or wreckages. Prior to dredging, the Contractor shall survey the dredge area and remove debris encountered. Debris removed from the dredge area shall be removed from the water. Explosives shall not be used under any circumstance. Disposal of debris shall be the responsibility of the Contractor and disposal shall be outside the limits of the USCG Station Golden Gate property.

1.04 QUANTITY OF MATERIAL: The total estimated amount of

material to be removed from within the specified limits, including side slopes, is 6,000 cubic yards. The quantity listed is an estimate only.

A. Maximum Event: The total dredge volume, per environmental authorizations, is not to exceed 20,000 cy for this event.

B. Over-depth Dredging: Due to…