GOGA_253655_China_Beach_Bath_House_RFIs_0002.pdf

GOGA 253655 China Beach Bath House RFIs + Government Responses

1. Please provide a construction parking plan as well as allowable limits for construction fencing and restrictions for construction staging at completed Phase 1 zone.

Government Response: Please see the attached Staging Plan. Future discussions after award can be held to re-configuring the staging to accommodate different phases of construction.

2. Please provide requirements for public access to beach that must be maintained for the duration of the project.

Government Response: As detailed in the staging plan notes, where safe and reasonable, the contractor shall work with NPS to provide the public to the beach during construction.

3. Fire sprinkler specifications list requirements for a complete design-build system. Per job walk, a fire sprinkler design and permit is being procured as part of phase 1. Please provide detailed clarification of fire sprinkler scope for Phase 2.

Government Response: NPS has contracted with Interface Engineering to develop the fire sprinkler design in order to facilitate the Phase 1 contractor’s effort to secure permits for connecting Fire and Domestic Water to the City’s system. The awarded Phase 2 contractor will be provided the approved sprinkler design and will be expected to contract with a fire sprinkler sub contractor to install the fire sprinkler system.

4. There does not appear to be a Hazardous Materials Survey for the existing built elements. An environmental report is included in bid documents but appears only to contain test results from Geotech borings. Please provide a comprehensive Hazardous Materials Survey Report which includes sample test results, locations, extent of hazardous materials and recommendations for abatement.

Government Response: Please see the attached Hazardous Materials Report. Refer to Spec Section 02-81-00 Hazardous Materials Remediation.

5. Please clarify whether Landscape Cast In Place Concrete is to be sole-sourced to Shaw and Sons only or whether “or Approved Equal” that is listed in specifications and in finish schedule on L1.0 is applicable. During the job walk, it seemed that the intent was for it to be sole-sourced to Shaw and Sons. Please also confirm that this applies only to concrete scope listed in the finish schedule on L1.0. Finally, are there other sole source requirements such as GFRC (also listed as “or approved equal”) based on Phase 1 procurement?

Government Response: Please see below, from the project specifications:

CRAFTSMAN CONCRETE SUBSTITUTIONS2. 3. 4. 5. 6.

A. Shaw & Sons Craftsman system has been used as the basis of design. This product shall be used unless the contractor can provide a material with the finish and quality that is equal or better than the Craftsman product. Substitutions shall be submitted to the landscape architect and ownership for review and approval. Submittals shall include representative samples. For Submittal Requirements of Craftsman products refer respective proprietary specification sections as identified in Section 2.1 of this specification.

1. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Owner’s Representative. Materials with equal performance characteristics produced by other Manufacturer’s and/or Distributors may be considered, providing deviations in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Owner’s Representative. The burden of proof on product equality is on the Contractor.

2. Specific reference to Manufacturer’s names and products specified herein are used as standards of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Owner’s Representative for Work under this Section.

3. Materials substituted and installed by the Contractor, without prior written approval by the Owner’s Representative may be rejected. Contractor shall not be entitled compensation by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

4. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

GFRC PRE CAST CONCRETE REQUIREMENTS SUBSTITUTIONS

B. Concrete works has been used as the basis of design. This product shall be used unless the contractor can provide a material with the finish and quality that is equal or better than the Concrete works GFRC product. Substitutions shall be submitted to the landscape architect and ownership for review and approval. Submittals shall include representative samples. See section 1.3 for submittal requirements.

6. Drawings A1.1 First floor demolition plan - East shows the keynotes dashed, is it work to be included or does the dash mean it will no longer be demolished?

Government Response: Dashed lines indicate ‘existing construction to be removed’ as shown in the Legend on A1.1.

7. The specifications mention security gates and barriers, but there is only one page of information provided. Will additional details be added?

Government Response: An updated version of Section 323136 is attached providing additional information. This section refers to door 127, which is a security gate.

8. Would it be possible to schedule an additional site visit for the subcontractors?

Government Response: A second site visit will not be scheduled.

9. The spec section 012700 is missing some units of measurement for the concrete repairs, they are highlighted in the attachment.

Government Response: The missing unit of measurement in each case is ‘percent’ (%). The symbol was lost when we compiled the individual pdf sections. See attached Section 012700 with percent symbol included.

CHINA BEACH REHABILITATION FINAL CONSTRUCTION DOCUMENTS

SAN FRANCISCO, CA JUNE 25, 2024

DEFINITION OF CONTRACT LINE ITEMS 01 27 00 - 1

SECTION 01 27 00

DEFINITION OF CONTRACT LINE ITEMS

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cut-off points where one item ends and another begins.

B. Include all work shown or specified in the bid. If no contract line item exists for a portion of the work, include the costs in a related item.

1.2 MEASUREMENT AND PAYMENT

A. General:

1. The total bid price shall cover all work required by the Contract Documents. All costs in connection with the proper and successful completion of the work, including furnishing all materials, equipment, supplies, and appurtenances; providing all construction, equipment, and tools; and performing all necessary labor and supervision to fully complete the work, shall be included in the unit and lump sum prices bid. All work not specifically set forth as to a bid item in the bid form shall be considered subsidiary obligations of Contractor and all costs in connection therewith shall be included in the bid prices.

2. Measurement for each bid item is shown on the List of Contract Line Items herein.

3. Payment shall be made in accordance with individual Contract Line Items herein for each unit installed, complete, and in place.

1.3 LIST OF CONTRACT LINE ITEMS (BASE BID)

A. Contract Line Item 1: Rehabilitation of China Beach Bathhouse –Structure, Exterior Envelope, and

Electrical Room

1. Base Bid: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the rehabilitation of the historic China Beach bathhouse including all structural and exterior envelope improvements. The structural scope includes seismic upgrades, replacement of concrete elements, and structural repair work. The building envelope scope includes all architectural improvements, doors and windows, windscreens, roofing, railings, lighting, decontamination shower, and envelope repairs and finishes for a complete exterior rehabilitation. Installation of all main electrical equipment in room

116 and installation of all under slab piping throughout the building are included.

2. Measurement for payment will be by lump sum.

3. Payment will be made at the contract lump sum price.

B. Contract Line Item 2: Rehabilitation of China Beach Bathhouse –Public Facilities

1. Base Bid: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the rehabilitation of the public facilities in the China Beach Bathhouse. The scope includes all architectural, structural, mechanical, electrical, lighting, and plumbing work for a

DEFINITION OF CONTRACT LINE ITEMS 01 27 00 - 2

complete installation at rooms 116, 117, 118, 119, 120, 121, 123, 125, 127, 128, 129, and

130.

C. Contract Line Item 3: Rehabilitation of China Beach Bathhouse –Sitework

1. Base Bid: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the rehabilitation of the China Beach site. The sitework scope includes all civil, utilities, and landscape improvements except elements identified as Bid Options. Installation of concrete paving P1 in lieu of P4 is included.

D. Contract Line Item 4: Concrete Repairs – Crack Repair and labor for the repair of 500 lineal feet of cracks in existing concrete on exterior walls, underside of overhangs, remaining observatory elements, bridge, window sills and stairs.

2. Measurement for payment will be on a lineal foot basis of repairs completed.

3. Payment will be made at the contract unit price.

E. Contract Line Item 5: Concrete Repairs – Spall Repair without Rebar Damage and labor for the repair of 150 square feet spalls without rebar damage in existing concrete on exterior walls, underside of overhangs, remaining observatory elements, bridge, window sills, and stairs.

2. Measurement for payment will be on a square foot basis for repairs completed.

F. Contract Line Item 6: Concrete Repairs – Spall Repair with Moderate Rebar Damage and labor for the repair of 150 square feet of spalls with moderate rebar damage in existing concrete on exterior walls, underside of overhangs, remaining observatory elements, bridge, window sills, and stairs.

G. Contract Line Item 7: Concrete Repairs – Spall Repair with Significant Rebar Corrosion and labor for the repair of 150 square feet spalls with significant rebar damage in existing concrete on exterior walls, underside of overhangs, remaining observatory elements, bridge, window sills, and stairs.

DEFINITION OF CONTRACT LINE ITEMS 01 27 00 - 3

1.4 BID OPTIONS

A. Bid Option 1: Interior Bathhouse Construction – Boat Storage, Lobby, Office, Hall 104, and

Mechanical Room

1. Bid Option 1: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the completion of rooms 100, 102, 103, 104, 105, 107, and 109, including all architectural, mechanical, electrical, lighting, and telecommunications work. Installation of the entire fire sprinkler and alarm systems, and mechanical system are included. Installation of one light fixture closest to the entry door of the remaining shell spaces is included.

B. Bid Option 2: Interior Bathhouse Construction - Staff Locker/Shower/Rest Room

1. Bid Option 2: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the completion of rooms 110, 111, 111A, 112, 113, 114 and

115 including all architectural, mechanical, electrical, lighting, and telecommunications work.

C. Bid Option 3: Interior Bathhouse Construction – Remainder of Interior Spaces

1. Bid Option 3: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the completion of the remaining interior spaces, including all architectural, mechanical, electrical, lighting, and telecommunications work.

D. Bid Option 4: Sea Wall Repair

1. Bid Option 4: This item includes, but is not limited to, furnishing all materials, equipment, and labor for repair of damaged areas to the concrete cap of the historic sea wall. Repair will include patching spalled sections of the wall cap to match the material, finish, and profile of the historic wall. Include cap replacement due to exposed or delaminated concrete at 15% of the wall length and repair of horizontal cracking between the cap and top of wall at 10% of the wall length. Include allowance for concrete crack repair at 25 lineal feet at control joints in the sea wall.

2. Measurement for payment will be by unit price.

3. Payment will be based on the contract unit price.

E. Bid Option 5: Construct Terrace Extension Stair

1. Bid Option 5: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation of the Terrace Extension Stair, including landing, handrails, and perimeter walls. Refer to sheet L7.10-L7.13 and associated structural drawings.

F. Bid Option 6: Construct Counters and Stools at Seawall

DEFINITION OF CONTRACT LINE ITEMS 01 27 00 - 4

1. Bid Option 6: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation counters, stools, and companion seating at three locations.

Refer to sheet L7.8 and L7.9 for enlarged plans and details.

G. Bid Option 7: Concrete Repairs at Existing Seawall Stairs

1. Bid Option 7: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation damaged areas to the concrete stairs connecting the terrace to the beach. Repair will include patching spalled sections of the wall cap to match the material, finish, and profile of the historic wall at 10% of the wall length. Include repairs to 20% of the stair treads having exposed corroded reinforcement and delaminated concrete.

2. Measurement for payment will be by unit price.

H. Bid Option 8: New Handrails at Existing Seawall Stairs

4. Bid Option 8: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation of new metal handrails at the existing stairs leading from the terrace level to the beach. Handrails are to be provided on both sides of each stair and meet accessibility requirements. The paint system for the handrails shall match that of the new roof deck railings. Refer to sheets L1.1 and L1.2 for locations. Match elevations 6/L7.3 and detail 4/L7.3 for new railings.

5. Measurement for payment will be by lump sum.

6. Payment will be made at the contract lump sum price.

I. Bid Option 9: Replace Existing Guardrail and Handrail at Bottom of Trail Stair

1. Bid Option 9: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation of new metal handrails at the existing stairs at the bottom of the mid-slope trail. Handrails are to be provided on both sides of each stair and meet accessibility requirements. The paint system for the handrails shall match that of the new roof deck railings. Bid option includes removal of existing railings and patching of concrete at removal locations. See details 4,5,6,7/A7.3 for new railings. Assume 20’-0” length of guardrail and handrails.

J. Bid Option 10: Replace Existing Stair at West End of Terrace

1. Bid Option 10: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation of new code-compliant stair between the terrace level and beach. Provide guardrails and handrails both sides of stair per details

4,5,6,7/A7.3. Provide new level asphalt landing at tops of stairs and grade to meet adjacent concrete paving elevations. Bid option includes removal of existing stair and railings.

DEFINITION OF CONTRACT LINE ITEMS 01 27 00 - 5

K. Bid Option 11: Provide Graphic Concrete at West Terrace

1. Bid Option 11: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation graphic concrete Type P4 at the west terrace in lieu of P1. Refer to sheet L7.2.

L. Bid Option 12: Concrete Repairs at Existing Ramp

4. Bid Option 12: This item includes, but is not limited to, furnishing all materials, equipment, and labor for the installation damaged areas to the concrete stairs connecting the terrace to the beach. Repair will include patching spalled sections of the wall cap to match the material, finish, and profile of the ramp at 100% of the wall length. Include repair of 25 square feet of spalls, cracks at control joints, and replacement of corroded reinforcement.

5. Measurement for payment will be by unit price.

6. Payment will be made at the contract unit price.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

END OF SECTION

SECURITY GATES AND BARRIERS 32 31 36 - 1

SECTION 32 31 36

SECURITY GATES AND BARRIERS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Security gates.

1.2 ADMINISTRATIVE REQUIREMENTS

A. Coordination: Coordinate installation of units with size, location and installation of service utilities.

1.3 SUBMITTALS

A. Shop Drawings: Provide detailed drawings showing:

1. Layout and overall dimensions of each major element of the barrier.

2. Anchoring requirements of the barrier.

1.4 DELIVERY, STORAGE AND HANDLING

A. Store materials in a manner to ensure proper ventilation and drainage. Protect against damage, weather, vandalism and theft.

1.5 WARRANTY

A. See Section 01 77 00 - Closeout Submittals, for additional warranty requirements.

B. Correct defective Work within a one-year period after Date of Substantial Completion.

PART 2 PRODUCTS

2.1 SECURITY GATES AND BARRIERS – SALIENT CHARACTERISTICS

A. Security Gates and Barriers: Factory-fabricated, assembled, and tested devices, including components for satisfactory operation; capable of resisting specified impact when installed in foundations indicated on drawings.

B. Material: Hot-dipped galvanized steel with painted finish.

C. Swing Gates: Single leaf swing gate with side panel and transom panel with perforations as indicated in the drawings.

D. Galvanized-Steel Frames: Fabricate members from square tubes, 2 by 2 inches formed from

SECURITY GATES AND BARRIERS 32 31 36 - 2

0.108-inch (2.74-mm) nominal-thickness, metallic-coated steel sheet or formed from 0.105-inch (2.66-mm) nominal-thickness steel sheet and hot-dip galvanized after fabrication.

E. Hardware: Latches permitting operation from both sides of gate, hinges, and keepers.

1. Hinges: BHMA A156.1, Grade 1, suitable for exterior use.

a. Function: 39 - Full surface, triple weight, antifriction bearing.

b. Material: Wrought steel, forged steel, cast steel, or malleable iron; galvanized.

F. Rim Locks: BHMA A156.5, Grade 1, suitable for exterior use.

a. Function: 622 - Deadbolt by key from outside and by turn from inside.

b. Material: Cast, forged, or extruded brass or bronze.

c. Mounting Plate: Configuration necessary for mounting locks. Fabricate from 1/8-inch- (3.2-mm-) thick, steel plate; galvanized.

2.2 STEEL AND IRON

A. Plates, Shapes, and Bars: ASTM A 36/A 36M.

B. Tubing: ASTM A 500/A 500M, cold-formed steel tubing.

C. Galvanized-Steel Sheet: ASTM A 653/A 653M, structural quality, Grade 50 (Grade 340), with G90 (Z275) coating.

2.3 COATING MATERIAL

A. Refer to Section 099700 - Special Coatings for paint system for all gate and frame surfaces.

PART 3 EXECUTION

3.1 GATE INSTALLATION

A. Install gates according to manufacturer's written instructions, level, plumb, and secure for full opening without interference. Attach hardware using tamper-resistant or concealed means.

Install ground-set items in concrete for anchorage. Adjust hardware for smooth operation and lubricate where necessary.

3.2 ADJUSTING

A. Gates: Adjust gates to operate smoothly, easily, and quietly, free of binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding.

END OF SECTION

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OVERALL SITE PLAN

CHINA BEACH REHABILITATION

SEA CLIFF, SAN FRANCISCO

February 6, 2023

NORTH

0 10' 20' 40' www.sherwoodengineers.com

2548 Mission Street San Francisco, CA 94110 thoward Polygon thoward Polygon thoward Text Box

CONSTRUCTION STAGING

thoward Polygon thoward Length Measurement 18'-0" thoward Length Measurement 18'-0" thoward PolyLine thoward Callout

MAINTAIN A MINIMUM OF 10 PARKING STALLS FOR PUBLIC ACCESS.

(TYP SIZE 9FTx18FT) thoward Polygon thoward Callout MAINTAIN TWO ACCESSIBLE PARKING STALLS AT ALL TIMES DURING THE COURSE OF CONSTRUCTION thoward PolyLine thoward Polygon thoward PolyLine thoward PolyLine thoward PolyLine thoward PolyLine thoward Callout PROVIDE FLEXIBLE BEACH PUBLIC ACCESS DURING BUILDING REHAB, AND DURING PROMENADE CONSTRUCTION WHEN POSSIBLE BASED ON PHASING AND CONSTRUCTION ACTIVITY thoward Callout PROVIDE FLEXIBLE BEACH PUBLIC ACCESS DURING BUILDING REHAB, AND DURING PROMENADE CONSTRUCTION WHEN POSSIBLE BASED ON PHASING AND CONSTRUCTION ACTIVITY thoward Text Box Construction Staging Notes:

1. Pedestrian access required during construction when possible based on construction activity

2. Contractor to maintain access to both accessible parking stalls and provide adequate space for a minimum of ten (10) standard sized parking stalls within the project boundary. Construction fencing may be moved into public parking zone on a temporary basis to provide more staging space.

3. Contractor to provide construction fencing with screening between parking lot and sidewalk

4. Contractor to provide fencing along flexible beach access route that limits public access to the entire China Beach site unless otherwise noted.

5. Staging areas, sizes, flexible public access routes, etc are shown as options the contractor shall consider to provide the minimum public access as outlined above. The contractor shall review all minimum criteria depicted and noted on this plan and adjust programming as means and methods require.

thoward PolyLine thoward PolyLine thoward Callout PROVIDE FENCING BETWEEN FLEXIBLE PUBLIC ACCESS ROUTES AND EXTENTS OF ENTIRE CHINA BEACH SITE thoward Polygon thoward Callout

CONTRACTOR TO MAINTAIN PUBLIC ACCESS TO OVERLOOK GATHERING AREAS

Hazardous Materials Survey Report

China Beach Bath House Rehabilitation Sea Cliff Avenue, San Francisco, CA

Prepared for:

Pier 9, The Embarcadero, Suite 107

San Francisco, CA 94111

Prepared By:

Vista Environmental Consulting

2984 Teagarden Street San Leandro, CA 94577

August 17, 2020

Project No. 203011002

TABLE OF CONTENTS

EXECUTIVE SUMMARY

PAGE

1. INTRODUCTION 1

2. METHODOLOGY 1

3. RESULTS 4

4. RECOMMENDATIONS 7

5. LIMITATIONS & EXCLUSIONS 11

APPENDICES

A. BUILDING DATA

Hazardous Materials Summary

Asbestos Sampling Inventory

Asbestos Sample and Material Location Drawings

Photo Documentation

Asbestos Analytical Reports

XRF Lead Sequential Report i

EXECUTIVE SUMMARY

Vista Environmental Consulting (Vista) performed a hazardous materials survey at the China Beach Bath

House located in Golden Gate National Park in San Francisco, CA (Project Site). The survey was performed to identify and sample accessible suspect asbestos-containing materials, to identify representative building components for the presence of lead-containing surface coatings/lead-based paints

(LCSC/LBP), and to visually identify universal waste (UW) materials, polychlorinated biphenyls (PCBs) containing devices, and other suspect hazardous materials. Vista performed the hazardous materials survey on July 29, 2020.

The following tables are a summary of identified hazardous materials that may be in the path of construction:

Asbestos

MATERIAL DESCRIPTION LOCATION

ESTIMATED

QUANTITY

Sealant White & Tan Exterior Door, Window & Louver Frames

23 SF

(276 LF)

Coating Black, Concrete Perimeter Walls Behind Plaster 2,900 SF

Parapet/Flashing Gray & Black, Built-Up

Roof Parapets and 2nd Floor Observation

Deck at Perimeter of Observation Office

(200) and Flue

725 SF

Heat Shield Gray Concession Restroom (111) 1 SF

Insulators/Insulation Unknown, Electric Switch

Gear

Mechanical Room (113) and South Central

Storage Room (118). (Assumed –

Energized Equipment)

20 SF

Lead

ROOM COMPONENT SUBSTRATE COLOR CONDITION PbC UNITS

Outside Flag Pole Metal Yellow Deteriorated 0.12 mg/cm2

Outside Window Metal Brown Deteriorated 0.3 mg/cm2

Outside Door Frame Metal Brown Deteriorated 0.01 mg/cm2

Outside Louver Metal Brown Deteriorated 0.08 mg/cm2

Outside Wall Plaster Yellow Deteriorated 0.01 mg/cm2

Outside Wall Plaster Yellow Deteriorated 0.01 mg/cm2

Outside Window Sill Wood Yellow Intact 1.5 mg/cm2

Inside Wall Ceramic Beige Intact 6.2 mg/cm2

Inside Floor Ceramic Gray Intact 0.01 mg/cm2

Inside Door Metal Brown Intact 0.03 mg/cm2

Inside Door Frame Metal Brown, Light Intact 0.14 mg/cm2

Inside Door Wood White Intact 0.01 mg/cm2

Inside Stairs Metal Black Deteriorated 0.05 mg/cm2 ii

Inside Wall Concrete White Intact 0.19 mg/cm2

Inside Window Metal White Intact 0.4 mg/cm2

Inside Door Metal Gray Intact 0.15 mg/cm2

Inside Door Frame Metal Gray Deteriorated 0.28 mg/cm2

Inside Pipe Metal Orange Deteriorated 0.05 mg/cm2

Bold = Lead Based

Devices with Potential Hazardous Materials

MATERIAL CONTAMINANT

ESTIMATED

QUANTITY

Fluorescent Tubes (4' Length) Universal Waste 39

Light Fixture Ballasts Polychlorinated Biphenyls or

Electronic Waste

Smoke Detectors Low-Level Radiation 4

The Hazardous Materials Summary, Asbestos Sampling Inventory, Asbestos Sample and Material

Location Drawings, Photo Documentation, Asbestos Analytical Reports, and Lead XRF Sequential

Report can be found in Appendix A – Building Data.

All asbestos (>0.1%) disturbance and/or removal operations must be conducted by a Cal/OSHA registered and State licensed asbestos removal contractor. All disturbance and/or abatement operations should be performed under the direction of a California Certified Asbestos Consultant.

Should the removal of identified regulated asbestos-containing materials (RACM) involve at least 100 square feet or 100 linear feet per project site, per year, then notification to the Bay Area Air Quality

Management District (BAAQMD) and Cal/OSHA must be accomplished prior to the initiation of such activities.

All activities involving potential and identified lead-containing surfaces should be conducted in accordance with California Health & Safety Code sections 17920.10 and 10525, 10525.7, Title 8, California Code of Regulations (CCR), Section 1532.1.

In addition, all removal activities involving identified lead-based paints (LBP) must be conducted in accordance with Title 17, CCR, Division 1, Chapter 8, Sections 35001 through 36100, which proscribes the use of California Department of Public Health (CDPH) certified workers, work practices, and other requirements.

Written notification to Cal/OSHA must be accomplished should LBP activities involve equal to or more than 100 square feet or 100 linear feet of removal in accordance with the requirements of 8 CCR 1532.1.

iii

Any welding, cutting or heating of metal surfaces containing surface coatings should be conducted in accordance with 8 CCR 1537 Welding, Cutting, and Heating of Coated Metals, which require surfaces covered with toxic preservatives, and in enclosed areas, be stripped of all toxic coatings for a distance of at least 4 inches, in all directions, from the area of heat application prior to the initiation of such heat application, or 8 CCR 1536 Ventilation Requirements for Welding, Brazing, and Cutting. Vista recommends that the paint is stripped 12 inches, in all directions, from the area of heat application prior to the initiation of such heat application.

All clean-up activities involving hazardous materials must be conducted by personnel trained in accordance with the requirements of 40 CFR 265.16; Title 22 CCR 66265.16 and 66273.36, Title 8, CCR, Section 5194 - Hazard Communication and wearing respiratory protection in accordance with Title 8, CCR, Section 5155.

All personnel who perform hazardous materials work must be trained and qualified to do so. They must also follow the most current OSHA regulations including 29 CFR 1910.120 and 8 CCR 5192, Hazardous

Waste Operations and Emergency Response, as well as other applicable federal, state and local laws and regulations.

Waste stream segregation and analysis is required in accordance with 22 CCR Division 4.5, Minimum

Standards for Management of Hazardous and Extremely Hazardous Wastes. The resulting wastes may be hazardous under California and federal RCRA standards for metals and therefore require proper handling, packaging, labeling, and transportation under a proper manifest to a permitted hazardous waste storage, treatment and disposal facility. The contractor should contact the waste disposal site(s) for specific waste characterization testing requirements.

All potential and identified Universal Waste materials (UW) impacted by the work should be removed and recycled or disposed of in accordance with the UW guidelines established by the DTSC, as stated in

22 CCR Sections 66261.9 and 66273.1 thru 66273.90.

All ballasts must be visually inspected prior to disposal to determine if they contain PCB’s. Those ballasts marked No PCB’s or PCB Free can be considered as such as should be treated as UW - electronic waste.

All PCB-containing devices, including, but not limited to ballasts should be removed or have the oils removed and properly handled, collected, stored, transported and recycled or disposed of by an approved recycling or disposal facility in accordance with the requirements of Title 22 CCR 67426.1.

Devices containing low-level radiation, should be collected, waste characterized, disposed or recycled according to California rules and regulations.

iv

The documents found in the appendices are not stand-alone documents and should not be separated from this report. Quantities and locations listed in the tables are order of magnitude estimates and are not to be used for bidding purposes. It is the sole responsibility of the contractor to verify quantities and locations of hazardous materials in the path of construction through site visits and contractual bid set documents, including, but not limited to all specifications, drawings, and addenda. Any discrepancies between the contractual bid set documentation and site visits must be submitted in writing to the Owner or Owner’s representative, prior to bidding.

Report prepared for the Company by:

Christopher R. Burns

Senior Project Manager

CAC #92-0224

LRCIA #LRC-00006938

China Beach Bath House August 17, 2020

Hazardous Materials Survey Report Project No. 203011002

- 1 -

1.0 INTRODUCTION

Vista Environmental Consulting, Inc. (Vista) has prepared this hazardous materials survey at the China

Beach Bath House located on Sea Cliff Avenue in San Francisco, CA (Project Site).

The purpose of this survey was to identify hazardous building materials so they can be removed; waste characterized, and properly disposed of prior to being impacted by renovation activities. The data provided in this report can assist all parties involved in this project make informed decisions with regards to regulatory compliance and employee health and safety. This survey included the following:

Visible and accessible suspect asbestos-containing materials (ACM) were assessed and sampled to determine asbestos content.

Representative painted and coated building components were assessed and categorized based on standard selective demolition practices and sampled for lead content which can be used in preliminary waste stream characterization estimates.

Visible and accessible materials commonly found in buildings which can potentially have hazardous properties that are regulated were assessed, but not sampled. These materials include, but are not limited to:

Universal Waste (UW) materials, such as non-incandescent lamps, batteries, mercury-containing devices, and electronic waste; Batteries include, but are not limited to those found in exit signs, emergency lights, fire alarm systems, and back-up power systems.

Polychlorinated biphenyls (PCBs) containing devices such as lamp ballasts, wet-type transformers, and hydraulic systems.

Smoke detectors that contain low-level radioactive sources.

2.0 METHODOLOGY

Vista performed the pre-renovation hazardous materials survey on July 29, 2020. The asbestos survey was conducted by Christopher Burns, a State of California Division of Occupational Safety and Health

(Cal/OSHA) Certified Asbestos Consultant (CAC) #92-0224. Assisting on the survey was Greg Marszal, a Cal/OSHA Certified Site Surveillance Technician (CSST) #96-1975. The lead paint screening survey was conducted by Christopher Burns, a California Department of Public Health (CDPH) Lead-Related

Construction Inspector/Assessor (LRCIA) #LRC-00006938.

The survey performed was not intrusive in nature, but did not include access of areas and sampling of materials which would have required demolition or large scale destructive testing. Roof sampling was performed using 3” stainless steel cores down to the first hard substrate. Vista’s intent was to perform a thorough a survey and made a good faith effort to access all building materials down to the structural components and/or interstitial spaces. Vista made every effort to access these areas, however because non-destructive techniques had to be employed to keep the facilities operational, not all interstitial spaces could be accessed.

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Quantities and locations are based upon areas that were accessed. Materials similar to those in this report may be present in areas which were not accessed.

2.1 Asbestos

The asbestos survey was performed generally in accordance with the AHERA protocol (40 CFR Part 763, Subpart E). Visual identification was performed by assessing visible and accessible structural, architectural, and mechanical components in the path of construction for the presence of suspect ACM at the Project Site.

This asbestos survey was conducted in the following manner:

Suspect ACM was categorized into homogeneous materials. A homogeneous material is defined as being a surfacing material, thermal system insulation, or miscellaneous material which is uniform in color and texture. It may also be additionally subcategorized using the date of installation, when available. Each homogenous material is given a coding letter which can be found in charts, drawings and sample numbering.

A sampling scheme was developed based on the location and quantity of the suspect homogeneous ACM. A rough order of magnitude estimate of each suspect homogenous ACM was calculated and recorded for future reference. A sampling scheme, including a specific number of samples per suspect homogeneous ACM, was calculated prior to sampling.

Sampling guidelines established by the United States Environmental Protection Agency (USEPA) and BAAQMD Regulation 11, Hazardous Pollutants, Rule 2, Asbestos was utilized for sampling each suspected homogeneous ACM. Methods described in Appendix K of 8 California Code of

Regulation (CCR) 1529 were utilized in the collection of each suspect homogeneous ACM sample.

Trained California asbestos certified personnel, using appropriate sampling tools and sterile leak-tight Whirl-pak® containers or equivalent, collected building materials that were suspected to contain ACM.

Each suspect ACM sample was collected and sealed in its container and appropriately labeled with a unique sample identification number and recorded on an asbestos bulk sampling log. Each log contains a chain-of-custody to assure the proper transition of the samples from Vista to the analytical laboratory.

Sampling tools were decontaminated by using a clean wet cloth between the collection of each suspect sample to prevent the possibility of cross contamination to subsequent suspect ACM samples.

Suspect ACM samples were delivered, under proper chain-of-custody protocol, to SGS Forensic

Analytical Laboratories (Forensic) in Hayward, California. Forensic is accredited under the National

Voluntary Laboratory Accreditation Program (NVLAP) and the California Environmental Laboratory

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Accreditation Program (Cal-ELAP). The samples were submitted for analysis by Polarized Light

Microscopy (PLM) utilizing dispersion staining techniques in accordance with the EPA’s “Method for the

Determination of Asbestos in Bulk Building Materials” U.S. EPA/600/R-93/116, Visual Area Estimate, dated July 1993 and adopted by the NVLAP as Test Method Code 18/A01.

Samples of asbestos-containing door, window, and louver frame sealant and concrete coating were further analyzed by 400-point point count, utilizing National Emission Standards for Hazardous Air Pollutants

(NESHAP) Final Rule, 40 CFR, Part 61 methodology.

2.2 Lead

Vista’s lead construction screening survey used an X-Ray Fluorescence (XRF) direct read spectrum analyzer device to take readings of representative painted and coated surfaces for evaluation of lead levels for worker health and safety and preliminary waste characterization prior to construction activities. The device used was a NITON Corporation XRF Spectrum Analyzer, Model XLp- 300 A. This device is a solid-state detector optimized for lead L-shell and K-shell X-ray detection and uses a 40 mCi 109Cd

(1,480 Mbq) isotope for an excitation source.

This survey was a limited screening of paint for the purpose of characterizing the lead content in paint and coatings likely to be disturbed during work activities. For this purpose, XRF analysis was used to screen for lead levels and provides results that are generally representative of typical conditions but are not inclusive of all painted/coated surfaces present at the Project Site. This survey was not a surface by surface inspection as outlined in the U.S. Department of Housing and Urban Development (HUD)

Guidelines For the Evaluation and Control of Lead-Based Paint Hazards in Housing pursuant to Title X of the Housing and Community Development Act of 1992. These data can be helpful in evaluation of lead-related environmental risks in general, but cannot be used to calculate worker exposures and is not a substitute for employee exposure monitoring or waste stream sampling.

2.3 Devices with Potential Hazardous Materials

Devices with potential hazardous materials were visually identified during the survey walk through and their quantities were estimated and recorded. No attempt was made to disassemble devices or sample suspect materials within the devices. For example, fluorescent light fixtures must be presumed to contain

Universal Waste lamps and ballasts which contain PCB oil or are electronic waste, pending removal and disassembly of each unit to determine explicit product specific information that proves otherwise.

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3.0 RESULTS

3.1 Asbestos

The following materials have detectable concentrations of asbestos greater than 0.1%:

HOMO.

ID

MATERIAL DESCRIPTION LOCATION

CAL/OSHA

CLASS

BAAQMD

CATEGORY

D Sealant White & Tan

Exterior Door, Window & Louver

Frames

Unclassified NA (<1% by

Point Count)

E Coating Black, Concrete Perimeter Walls

Behind Plaster Unclassified

NA (<1% by

Point Count)

I Parapet/Flashing Gray & Black, Built-Up

Roof Parapets and

2nd Floor

Observation Deck at Perimeter of

Observation Office

(200) and Flue

Class II Category I – Non-

Friable

S Heat Shield Gray Concession

Restroom (111) Class II

Friable (RACM when Removed)

AA Insulators/Insulation Unknown, Electric

Switch Gear

Mechanical Room

(113) and South

Central Storage

Room (118).

(Assumed –

Energized

Equipment)

Class II Category II- Non-

Friable

Subsurface asbestos-containing utility piping may be present throughout the Project Site.

BAAQMD classifications are based upon the material’s condition at the time of the survey or as rendered as a result of standard manual removal/demolition techniques. The use of “mechanical means” or non-standard or other aggressive removal/demolition techniques will result in non-friable materials becoming

RACM.

The results of the bulk samples collected for asbestos, and analyzed by PLM, indicate that detectable concentrations of asbestos are not present in the following tested materials:

HOMOGENEOUS ID MATERIAL DESCRIPTION # OF SAMPLES

A Paint/Concrete Yellow, Gray, Exterior Walls, Foundation

B Putty Gray, Window 2

C Sealant Gray, Door & Window Frames 2

F Paint/Stucco Yellow, Gray 2

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HOMOGENEOUS ID MATERIAL DESCRIPTION # OF SAMPLES

G Sealant Gray, Concrete Seam 2

H Roofing Black & Gray, Tar & Gravel 2

J Mastic Gray & Black, Built-Up Roof 2

K Paint/Plaster White/Gray, Walls 2

L Vapor Barrier Black, Walls 2

M Mortar/Grout Gray, White, 4" Ceramic Wall 1

N Mortar/Grout Gray/Gray, 1" Ceramic Floor 1

O Wallboard/Joint Compound White/White 1

P Jacketing White, 4" OD Fiberglass Pipe 2

Q Jacketing White, Duct 2

R Glazing Gray, Window 2

T Tile/Grout Terracotta/Gray, Wall 1

U Gasket Black, Pipe 1

V Vinyl Floor Tile/Mastic 12" White/Yellow 1

W Basecove/Mastic 4" Brown/Yellow 1

X Concrete Gray, Walkway 3

Y Asphalt Black, Roads & Parking 3

Z Putty Tan, Window 1

BB Insulation White & Brown, Firedoor 1

CC Coating Gray, Floor Texture 1

DD Concrete Gray, Retaining Wall, Upper 1

EE Expansion Joint Brown, Retaining Wall 1

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3.2 Lead

XRF Sampling

For purposes of this survey, and in accordance with Title 8 CCR, Section 1532.1 (8 CCR 1532.1) and

Title 17 of the California Code of Regulations, Section 35001 et. seq. the bulk paint chip sample or XRF direct read instrument results were interpreted as follows:

1. Lead-based paints (LBP) and Lead-based Materials (LBM) are present when bulk samples revealed a lead concentration of ≥0.5 wt%, ≥5,000 milligrams per kilogram (mg/kg) or parts per million (ppm), or ≥1.0 milligrams per centimeter squared (mg/cm²) via XRF direct read instrument sampling.

2. Positive results (lead detected) were determined when bulk samples revealed a lead concentration of

<0.5 wt%, <5,000 mg/kg or ppm down to the analytical detection limit of the analysis, or <1.0 milligrams per centimeter squared (mg/cm²) via XRF direct read instrument sampling down to the detection limit of the device.

3. “No lead detected” was determined when bulk paint chip samples did not reveal a lead concentration above the analytical detection limit of the laboratory or direct read instrument sampling device.

Please refer to the Conclusions/Recommendations section below for regulatory clarifications regarding lead in paints.

The bulk sample results or XRF direct read instrument results for this survey indicated that the following building components and respective surface coatings had lead concentrations defining them as LBP, in accordance with Title 17 of the California Code of Regulations, Section 35001 et. seq.:

Outside Window Sill Wood Yellow Intact 1.5 mg/cm2

The bulk sample results or XRF direct read instrument results for this survey indicate that the following building components and respective surface coatings had lead concentrations, in excess of the level for compliance with trigger activities, as defined in 8 CCR 1532.1:

ROOM COMPONENT SUBSTRATE COLOR CONDITION PbC UNITS

Outside Flag Pole Metal Yellow Deteriorated 0.12 mg/cm2

Outside Window Metal Brown Deteriorated 0.3 mg/cm2

Outside Door Frame Metal Brown Deteriorated 0.01 mg/cm2

Outside Louver Metal Brown Deteriorated 0.08 mg/cm2

Outside Wall Plaster Yellow Deteriorated 0.01 mg/cm2

Outside Wall Plaster Yellow Deteriorated 0.01 mg/cm2

Inside Wall Ceramic Beige Intact 6.2 mg/cm2

Inside Floor Ceramic Gray Intact 0.01 mg/cm2

Inside Door Metal Brown Intact 0.03 mg/cm2

Inside Door Frame Metal Brown, Light Intact 0.14 mg/cm2

Inside Door Wood White Intact 0.01 mg/cm2

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Inside Stairs Metal Black Deteriorated 0.05 mg/cm2

Inside Wall Concrete White Intact 0.19 mg/cm2

Inside Window Metal White Intact 0.4 mg/cm2

Inside Door Metal Gray Intact 0.15 mg/cm2

Inside Door Frame Metal Gray Deteriorated 0.28 mg/cm2

3.3 Devices with Potential Hazardous Materials

ESTIMATED

QUANTITY

Fluorescent Tubes (4' Length) Universal Waste 39

Light Fixture Ballasts Polychlorinated Biphenyls or

Electronic Waste

The Hazardous Materials Summary, Asbestos Sampling Inventory, Asbestos Sample and Material

Location Drawings, Photo Documentation, Asbestos Analytical Reports, and Lead XRF Sequential

Report can be found in Appendix A – Building Data.

4.0 RECOMMENDATIONS

4.1 Asbestos

The results of the survey indicate that asbestos-containing materials are present in the path of demolition at the Project Site.

Work performed during any activities that disturb the asbestos-containing materials identified in this report must be done in compliance with the most recent edition of all applicable federal, state, and local regulations, standards, and codes governing abatement, transport, and disposal of asbestos-containing materials. These include, but are not limited to, the following:

CCR, Title 8, Chapter 3.2, Subchapter 2, Article 2.5 - Registration Asbestos-Related Work

Sections 341.6 through 341.14

CCR, Title 8, Section 1529 - Asbestos in the Construction Industry

BAAQMD Regulation 11, Hazardous Pollutants, Rule 2, Asbestos Demolition, Renovation and Manufacturing

NESHAP - 40 CFR Part 61, National Emissions Standards for Hazardous Air Pollutants

AHERA - 40 CFR Part 763 - Subpart E, Asbestos Containing Materials in Schools

Materials encountered in the building that are not part of this report must be properly sampled for the content of asbestos or assumed to be asbestos containing prior to any disturbance.

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Prior to activities which will disturb identified or assumed asbestos, a Cal/OSHA registered and

California licensed asbestos contractor must be utilized for abatement of asbestos that will be impacted.

Vista recommends that all abatement operations be conducted under the direction of a California Certified

Asbestos Consultant.

Should the removal of identified regulated asbestos-containing materials (RACM) involve at least 100 square feet or 100 linear feet per project site, per year, then notification to the BAAQMD and Cal/OSHA must be accomplished prior to the initiation of such activities.

4.2 Lead

The results of the survey indicate that lead-based and containing paints, and lead-based materials are present in the path of demolition at the Project Site.

At present there is no state or federal regulation requiring mandatory lead removal or abatement prior to disturbance of building materials with identified lead paint or coatings. However, there are applicable

Cal/OSHA worker protection and training requirements, Cal/EPA waste disposal requirements, CDPH requirements for public and residential buildings, and SB 460 lead hazard regulations that apply to lead-related construction activities, abatement activities and their associated wastes. The following is a brief discussion and summary of applicable regulatory requirements:

♦ Cal/OSHA: Title 8, California Code of Regulation (CCR), Section 1532.1 (8 CCR 1532.1) governs occupational exposure to lead. This regulation requires that prior to initiation of certain activities, referred to as “trigger tasks”, workers must be trained, medically evaluated, and properly fitted with respiratory protection, and protective clothing until statistically reliable personal eight-hour time weighted average

(TWA) results indicate lead exposure levels below the Personal Exposure Limit (PEL) for each unique task which disturbs lead-based and lead-containing coatings. This process is known as a Negative

Exposure Assessment or NEA.

If the result of the exposure assessment is above the Action Level (AL) additional monitoring is required and if the result is above the PEL additional exposure monitoring, worker protection (including respirator protection and PPE), training and medical requirements apply. However even where the NEA criteria is met, certain hazard communication training and work practice controls still apply where lead is disturbed.

“Trigger tasks” are tasks that are assumed to exceed the PEL pending an exposure assessment and they encompass the majority of construction activities that disturb surface coatings. Examples of “trigger” tasks range from manual paint scraping as a lower expected exposure up to hot work and abrasive blasting as the highest expected exposures, and include any non-listed task that the employer determines may potentially expose employees to lead levels above the AL.

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“OSHA does not consider any method that relies solely on the analysis of bulk materials or surface content of lead (or other toxic material) to be acceptable for safely predicting employee exposure to airborne contaminates. Without air monitoring results or without the benefit of historical or objective data (including air sampling which clearly demonstrates that the employee can not be exposed above the action level during any process, operation, or activity) the analysis of bulk or surface samples can not be used to determine employee exposure.”- OSHA Standard Interpretation May 8, 2000.

OSHA states that these rules apply to “any detectable concentration of lead” without a specified detection level. Due to the Consumer Product Safety Commission currently allowing paint to contain up to 90 parts per million (ppm) or 0.009 wt% of lead, the variation of lead content due to aging and weathering, and the variation of detection limits associated with analysis of bulk materials, such as paint chips and surface content analysis via XRF, it is recommended that all painted or coated surfaces be treated as potentially containing lead. Positive analytical results by either method can be used to indicate that detectable lead is present but negative results cannot be interpreted as conclusively demonstrating the absence of lead.

Analytical data from analysis of bulk materials or surface content of lead can be helpful in evaluation of lead-related environmental risks in general but cannot be used to calculate worker exposures and are not a substitute for employee exposure monitoring. As a result of the above, any employee that works around potential lead-based or lead-containing coatings must have HAZCOM training and personal exposure air monitoring is additionally required for employees that disturb such coatings. Significant additional certification, notification, and work practices are required for materials found to be lead-based.

Any welding, cutting or heating of metal surfaces containing surface coatings should be conducted…