COB 1712 R (901 Hearst NBSC) - Berkeley, California · Client. The building is located at 1901...

ACUMEN INDUSTRIAL HYGIENE INC

1032 IRVING STREET #922 SAN FRANCISCO CA 94122

TEL 415 242 6060 FAX 415 242 6006

WWW.ACUMEN-IH.COM

Asbestos, Lead and Hazardous Building Materials Investigation

Pre-Remodeling Survey Report for Seismic Upgrades and Renovations

North Berkeley Senior Center 1901 Hearst Street

Berkeley, CA 94702

January 2018

Acumen Project No. COB 1712

Prepared for:

City of Berkeley Public Works Department

1947 Center Street Berkeley, CA 94704

Prepared by: Reviewed by: __________________________________ ____________________________________ Paul M. Spillane, CIH (January 8, 2018) Tam Pham, CAC (January 8, 2018) Certified Asbestos Consultant #10-4630 Certified Asbestos Consultant #13-5033 CDPH Lead Accredited #3920 CDPH Lead Accredited #20323

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Table of Contents

Asbestos, Lead and Hazardous Building Materials Investigation North Berkeley Senior Center

Berkeley, CA 94702

January 2018

1.0 INTRODUCTION ................................................................................................................................2 2.0 SUMMARY OF INVESTIGATION ..................................................................................................3

2.1 Asbestos Survey Methods ..................................................................................................................3 2.2 Lead Containing Materials and Paint Survey Methods ......................................................................3 2.3 Other Hazardous Building Material Survey Methods ........................................................................3

3.0 NARRATIVE SUMMARY OF FINDINGS ......................................................................................3 4.0 DETAILED FINDINGS AND DISCUSSION ...................................................................................4

4.1 Asbestos Findings and Discussion .....................................................................................................4 4.1.1 Friable Asbestos Containing Materials.......................................................................................4 4.1.2 Non-Friable Asbestos Containing Materials/ Asbestos Containing Construction Materials .....4 4.1.3 Assumed Asbestos Containing Materials ....................................................................................5 4.1.4 Regulated Asbestos Containing Materials ..................................................................................5 4.1.5 Non-Asbestos Containing Materials............................................................................................6

4.2 Detailed Lead Findings and Discussion .............................................................................................6 4.2.1 Summary of Lead Findings for Paints and Materials .................................................................7

4.3 PCB and Universal Hazardous Waste Findings and Discussion........................................................7 4.3.1 Summary of Universal Hazardous Wastes ......................................................................................7

5.0 CONCLUSIONS...................................................................................................................................8 6.0 RECOMMENDATIONS .....................................................................................................................8

6.1 ACMs/LCMs During Building Demolition or Renovations ..............................................................8 6.2 Managing ACM/LBP in Place (For Portions to Remain) ..................................................................8

7.0 LIMITATIONS ....................................................................................................................................9 TABLES

Table 1: Summary of Asbestos-Containing Materials Table 2: Non-Asbestos Containing Materials Table 3: Summary of Lead Paint Sample Results Table 4: Summary of Lead TTLC Sample Results

APPENDICES Appendix A: Laboratory Reports Appendix B: Sample Location Floor Plans Appendix C: Photographs

Asbestos, Lead and Hazardous Building Materials Investigation North Berkeley Senior Center January 2018 Berkeley, CA

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1.0 Introduction

The purpose of this report is to present and discuss the findings of an asbestos, lead, and other hazardous building materials investigation for the North Berkeley Senior Center, a two-story building that Acumen Industrial Hygiene, Inc. (Acumen) surveyed for the City of Berkeley’s Public Works Department, the Client. The building is located at 1901 Hearst Street in Berkeley, California. Acumen’s representative, Mr. Paul Spillane, CIH, CAC and Lead Inspector/Assessor (I/A), conducted this investigation on December 13, 2017. We understand the purpose of this survey is for seismic upgrades and renovation work that is scheduled to occur at the subject site. The inspection was limited to accessible areas of the building. The building was occupied at the time of the survey. The objectives of this investigation were as follows:

• To identify regulated asbestos containing materials (RACMs), defined by Bay Area Air Quality Management District (BAAQMD). RACMs and Category I and II materials that will be rendered friable need to be removed if they are to be impacted by building renovation (and before the building can be demolished).

• To identify asbestos containing materials (ACM) that would require compliance with California Department of Industrial Relations – Division of Occupational Safety and Health (Cal-OSHA) asbestos regulations and waste disposal. ACM is a manufactured construction material with an asbestos content that is greater than 1% by weight.

• To identify asbestos containing construction materials (ACCM) that would require compliance with California Department of Industrial Relations – Division of Occupational Safety and Health (Cal-OSHA) asbestos regulations. ACCM is a manufactured construction material with an asbestos content that is greater than 0.1% by weight.

• To identify primarily deteriorated lead-based paints (LBPs) that would need stabilization/removal to comply with California-EPA hazardous waste disposal regulations regulated by the California Department of Toxic Substances Control (DTSC). The handling of LBPs would also require compliance with Cal-OSHA lead regulations (8CCR1532.1). The evaluation of paints was not intended to be either a lead inspection or a lead hazard evaluation as defined by Title 17 CCR 35001 et seq. Lead-based paint inspections in public or residential buildings are subject to California Department of Public Health (CDPH) regulations. Certain aspects of the renovation project may require Title 17 compliant LBP clearance inspections prior to public re-occupancy.

• To identify lead containing materials (LCMs) primarily in ceramic tiles that would need to be removed before demolition for compliance with Cal-OSHA and Department of Toxic Substances Control (DTSC) regulations. The evaluation of ceramic tiles was also not intended to be either a lead inspection or a lead hazard evaluation as defined by California Department of Public Health (17CCR35001 et seq).

• To visually identify other potential hazardous building materials that would require removal prior to demolition to comply with Cal-EPA DTSC hazardous waste disposal regulations. The handling of universal hazardous wastes also requires compliance with Cal-OSHA regulations. These universal hazardous wastes may include mercury, polychlorinated biphenyls (PCBs), batteries and Freon.


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2.0 Summary of Investigation

2.1 Asbestos Survey Methods

The asbestos inspection consisted of a walkthrough of the building to identify and sample suspect asbestos-containing materials (ACM). Acumen noted significant factors of the suspect ACM, including the friability of suspect materials. Friability describes the ability of a material to be crushed or crumbled, when dry, into a powder using hand pressure. Where suspect ACMs were noted, bulk samples were collected and submitted with our chain of custody forms to Micro Analytical Laboratories, Inc. (Emeryville, CA) for analysis. This laboratory is accredited by the National Institute of Standards and Technology (NIST), National Voluntary Laboratory Accreditation Program (NVLAP) for selected test methods for asbestos. This laboratory also holds certification from the American Industrial Hygiene Association (AIHA). Acumen collected twenty-five (25) asbestos samples at the building during this survey. The suspect asbestos samples collected were analyzed by polarized light microscopy (PLM). The asbestos laboratory reports are shown in Appendix A. This method identifies the type(s) of asbestos present in the sample and its corresponding percent concentration(s). The reliable limit of quantification of this method is 1% asbestos. For samples reported as less than 1% (trace) asbestos, they will be reanalyzed using point counting methods.

2.2 Lead Containing Materials and Paint Survey Methods

The lead inspection consisted of a walkthrough of the buildings to identify deteriorated surface coatings and suspect lead containing materials (LCMs). Paints that were in deteriorated condition (peeling, chipping, powdering, etc.) and ceramic tiles were sampled, noting the location, color, substrate, and extent of deterioration. Intact paints were also sampled, for Cal-OSHA compliance purposes. We collected three (3) discrete samples of paints and analyzed by flame atomic absorption (FLAA) spectrometry using Method 7420. The limit of quantification depends on the mass of the sample. Three (3) bulk material samples were also collected and analyzed for total lead content by Total Threshold Limit Concentration (TTLC) method. These samples were submitted to Micro Analytical Laboratories, Inc. (Emeryville, CA) for analysis. This laboratory is accredited by the AIHA under the Environmental Lead Laboratory Accreditation Program (ELLAP) for selected lead analysis methods. The lead laboratory results are shown in Appendix A.

2.3 Other Hazardous Building Material Survey Methods

During this inspection, we visually verified the presence of suspect building materials. We also tallied fluorescent light tubes and estimated the number of ballasts associated with them. Ballasts were assumed to contain PCBs and were not sampled. PCB ballasts can be verified at the time of demolition as well as non-PCB ballasts will so be labeled.

3.0 Narrative Summary of Findings

The subject property was constructed around 1978 as slab-on grade with wood framed walls and ceilings (Photo 1). Proposed restroom ADA improvements are shown on floor plans dated 1999. The building consists of a two-story building with several classrooms, meeting rooms and a community cafeteria/ multipurpose room and kitchen that serves as the North Berkeley Senior Center.


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Interior finishes of the building have painted gypsum walls and ceilings that were found not to contain asbestos. Paints throughout were generally intact. Of the intact paints sampled, the yellow on drywall paint contains 93 parts per million (ppm) lead. The gypsum board walls and ceilings throughout do not have asbestos but the cove-base mastic contains <1%, trace asbestos, (Photo 2). The building also has glued-on 1x1’ ceiling tiles and lay-in 2x4’ ceiling tiles that were found not to contain asbestos. Due to access issues we did not sample the 1x1’ ceiling tiles in the community cafeteria/multipurpose room and additional testing is recommended, if these are to be removed (Photo 3). The flooring throughout the building consists of vinyl floor tile, carpets and ceramic tiles. The 12x12” cream with brown streaks vinyl floor tiles contains 3% asbestos and the associated black mastic contains 3% to 5% asbestos (Photo 4). Carpet adhesive, vinyl sheet flooring and ceramic tile mastics sampled do not contain asbestos. The water heater has un-insulated water lines. The electric wall heating system is still in use so destructive investigation could not be performed without damaging or interrupting the system. Exterior stucco, caulking and roofing materials were not sampled, so these materials are assumed asbestos for the purpose of this survey (Photo 5). Fire-rated doors were not core-sampled for investigation, but these generally appeared to be “non-asbestos’ type doors and should not be an issue for the purpose of this survey. Window gaskets were not present on these windows. Ceramic tiles were sampled where previously damaged and those sampled do not contain detectible concentrations of lead nor asbestos. Due to the use of the kitchen space, we could not sample the ceramic tiles in the kitchen. Two types of ceramic tile are present in the kitchen: 4x8” red floor tiles and 6x6” yellow ceramic tiles on walls (Photo 6). The blue/white 2x2” ceramic tiles in the upper floor men’s restroom were also not sampled (Photo 7). Universal hazardous wastes include mercury in thermostats, lighting tubes/ballasts, exit signs (batteries) and smoke detectors (Photo 8).

4.0 Detailed Findings and Discussion

4.1 Asbestos Findings and Discussion

The sampling results for asbestos containing materials are summarized in Table 1. The quantities estimated in the table are for the materials found throughout the building and is not limited to only where the materials were sampled. Table 2 shows the sample results for those materials that did not to contain detectable amounts of asbestos. The laboratory analytical results are included in Appendix A. Asbestos sample locations are illustrated on the Sample Location Maps provided in Appendix B. Representative photographs of materials that have been identified are provided in Appendix C, but locations of these materials are not limited to the areas shown in these photographs.

4.1.1 Friable Asbestos Containing Materials

There were no friable asbestos containing materials found during our investigation. We recommend additional testing if the demolition work exceeds the scope of this survey.

4.1.2 Non-Friable Asbestos Containing Materials/Asbestos Containing Construction Materials

There were non-friable asbestos containing materials found during our investigation based on bulk samples collected:

• 12x12” beige with brown streaks vinyl floor tile contains 3% chrysotile asbestos with 3% to 5% chrysotile asbestos black mastic underneath the tile (Samples COB1712-01A, COB1712-01B, COB1712-01C, COB1712-01D and COB1712-01E, Photo 4). We estimate there are approximately 8,500 square feet of this Category I non-friable material present in the building.


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• Cove-base mastic contains <1% chrysotile asbestos (Samples COB1712-02A COB1712-02B, COB1712-02C, COB1712-02D and COB1712-02E, Photo 5). Point-count reanalysis of these samples indicates 0.11% to 0.14% chrysotile asbestos. This non-friable material is considered asbestos containing construction material (ACCM) and is present throughout the building.

4.1.3 Assumed Asbestos Containing Materials

The following lists the assumed ACMs that are present but not sampled:

• 1x1’ ceiling tile mastic (if present). This material was not accessible for sampling. We estimate there are approximately 5,000 square feet of this assumed ACM present.

• 4x8” red ceramic floor tile. This material can be found on the first floor kitchen and we assumed it to contain asbestos (in mastics/grout or mortar) and lead (in tile glaze). We estimate there are approximately 700 square feet of this assumed ACM present.

• 6x6” yellow ceramic wall tile. This material can be found on the first floor kitchen and we assumed it to contain asbestos (in mastics/grout or mortar) and lead (in tile glaze). We estimate there are approximately 500 square feet of this assumed ACM present.

• 2x2” blue/white ceramic floor tile. This material can be found on the second floor men’s restroom and we assumed it to contain asbestos (in mastics/grout or mortar) and lead (in tile glaze). We estimate there are approximately 200 square feet of this assumed ACM present.

• Exterior stucco. This material can be found on the upper floor exterior walls and we assumed it to contain asbestos (texture, stucco or paint) and lead (intact paint). We estimate there are approximately 3,800 square feet of this assumed ACM present.

• Exterior roofing. This material can be found on the roofs and we assumed it to contain asbestos (as built up roof, felts and mastics). We estimate there are approximately 16,800 square feet of this assumed ACM present.

• Exterior caulking. This material can be found on the upper exterior wall joints and we assume it to contain asbestos. This material should also be tested for PCBs if removed. We estimate there are approximately 750 linear feet (1/2 inch bead) of this assumed ACM present.

4.1.4 Regulated Asbestos Containing Materials

The Bay Area Air Quality Management District (BAAQMD) regulates air emissions from building renovation and demolition projects. This agency requires that materials with an asbestos content greater than 1% be removed before building renovation and demolition if they are either friable or the work will damage or otherwise render them friable. We did not find RACMs in the building, however the abatement of the black floor mastic would also be regulated as RACM if the contractor uses mechanic methods to remove the mastic. The cove base mastic is non-RACM because this material contains less than 1% chrysotile asbestos as determined by point-count analysis so it is not regulated by BAAQMD. Its waste is classified as construction debris (non-classified) by the California Department of Toxic Substances Control (DTSC). However, this does not relieve the contractor from Cal-OSHA regulations, asbestos training and work practices. Removal of this material is regulated by Cal-OSHA as unclassified asbestos abatement work. If more than 100 square feet of ACCM are removed, the material must be handled by a Cal-OSHA registered contractor. The contractor should also be licensed as an asbestos abatement contractor by the California State Licensing Board. Cal-OSHA does not require specified work practices for handling ACCMs other than wet methods to control dust.


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4.1.5 Non-Asbestos Containing Materials

The following are materials that were sampled at the building that do not contain asbestos.

• Drywall and taping mud and associated paints;

• Vinyl sheet floor (kitchen office);

• Nailed-in 1x1’ ceiling tile;

• Lay-in 2x4’ ceiling tile;

• Carpet adhesive;

• 2x2’ ceramic floor and wall tile adhesive (beige/brown lower restroom)

• 2x2’ ceramic floor tile, mortar and grout (orange yellow upper restroom); and

• 6x6’ ceramic wall tile (adhesive).

4.2 Detailed Lead Findings and Discussion

Where inspected, we did not observe loose and flaking paint inside the building. As shown on Table 3, we representatively sampled paints to comply with Cal-OSHA and waste disposal during construction. Work that disturbs paints that contain any detectable level of lead is subject to Cal-OSHA’s lead in construction regulations. Lead containing materials may require separate disposal, if they contain more than 50 parts per million (ppm) lead. This rule does not apply for intact paint. Table 4 shows a summary of lead bulk samples of ceramic tile, which were not found to contain detectable amounts of lead concentrations. Any construction work that disturbs lead based or lead containing materials (including demolition) will need to be conducted in accordance with Cal-OSHA's lead in construction regulations (8CCR1532.l). These regulations apply to materials that contains detectable amounts of lead. In theory, this should not pose a significant problem as this regulation has been in effect since 1992. Cal-OSHA's lead in construction standard (8CCRI532.1) requires a contractor whose work involves disturbing lead containing materials to develop and implement a lead compliance plan, conduct employee exposure assessment to determine appropriate protective measures, including medical surveillance and personal hygiene facilities, and to provide employee training on the hazards of lead related work. Note that lead related work in public buildings that exceeds Cal-OSHA's permissible exposure limit requires that the training be accredited lead worker training. Cal-OSHA notification 24 hours in advance of removal work would not be required because the paint tested contain less than 0.5% lead by weight or 5,000 ppm lead. The written lead compliance plan would essentially acknowledge the presence of lead and would describe procedures to minimize airborne lead exposures (e.g., use of dust control, clean up debris daily with a HEPA vacuum, and use good personal hygiene procedures, etc.) consistent with either assumed or known airborne lead exposures. Paints that contain more than 5,000 ppm are considered “lead-based paint” and if deteriorated are considered a “lead-hazard” by the CDPH. Paint chip wastes or material that contains more than 1,000 ppm lead would be classified as California hazardous wastes. Deteriorated paint wastes or materials that contain more than 50 ppm lead but less than 1,000 ppm lead would need to be re-analyzed by the Soluble Threshold Limit Concentration (STLC) to determine soluble lead content and by the US EPA Total Concentration for Leachable Pollutants (TCLP) test to determine whether the paint or material is either a California or a federal hazardous waste. If the soluble test(s) exceed 5.0 mg/L, then the waste would be characterized as “hazardous waste” (either California, federal or both). If ceramic tile contains greater than


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50 ppm, then it should also be removed and tested for leachable lead per the STLC/TCLP methods, prior to demolition.

4.2.1 Summary of Lead Findings for Paints and Materials

This investigation found the following lead-containing paints that are present throughout the building:

• White paint on drywall contains less than 67 ppm lead (none detected). It is intact and requires no lead-stabilization.

• Pink paint on drywall contains less than 82 ppm lead (none detected). It is intact and requires no lead-stabilization.

• Yellow paint on drywall contains 93 ppm lead. It is intact and requires no lead-stabilization. Based on dilution factors the waste would not be considered hazardous waste, however the contractor will need to create a lead-compliance plan.

• 2x2” beige/brown ceramic floor tile found in the first floor restroom contains less than 9.1 ppm lead (none detected). If removed the waste would not be considered hazardous waste.

• 6x6” yellow/orange ceramic wall tile found in the second floor women’s restroom contains less than 8.6 ppm lead (none detected).

• 2x2” orange ceramic floor tile found in the second floor women’s restroom contains less than 9.2 ppm lead (none detected). If removed the waste would not be considered hazardous waste.

4.3 PCB and Universal Hazardous Waste Findings and Discussion

The Resource Conservation and Recovery Act (RCRA) and the Toxic Substance Control Act (TSCA) defines PCB-containing materials as materials containing concentrations of greater than 500 ppm PCB. PCB-contaminated materials are defined as materials containing a concentration of greater than 50 ppm PCB, but less than 500 ppm PCB. Non-PCB materials are defined as containing a concentration of less than 50 ppm PCB. PCB manufacture was banned in 1979, so suspect PCB building materials, such as exterior sealants or caulking, are potentially present at the building. We recommend sampling exterior caulkings and sealants for PCBs if these would be removed for disposal, because these are likely applications of PCBs. Acumen visually assessed the building by counting fluorescent light fixtures that will require inspection and disposal as hazardous waste if they contain PCBs. If they are to be removed at this time, a trained hazardous materials contractor will need to assess ballasts and segregate those without the “No PCB” labeling for proper storage and disposal. The fluorescent light tubes are also regulated because of their mercury content but these can be recycled instead of disposal as hazardous waste. Although recycling may be more expensive than disposal, it avoids the perpetual liability associated with the generation and disposal of hazardous wastes. Smoke detectors, mercury thermostat and exit signs were also found at the building. These items must be removed and disposal as universal hazardous waste if impacted by the renovation project.

4.3.1 Summary of Universal Hazardous Wastes

The following lists the universal hazardous wastes found during the investigation:

• Approximately 200 fluorescent lights;

• Approximately 50 smoke detectors;

• Approximately 12 exit signs (contain batteries);

• Approximately 15 mercury thermostat controls (Photo 8).


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5.0 Conclusions

Our investigation discovered asbestos in the vinyl floor tiles and associated mastics, and it is considered Category I asbestos containing materials. The cove base mastic throughout the building contains trace asbestos. These are non-friable materials, which will require abatement prior to demolition (if part of the renovation work) by a licensed and registered asbestos abatement contactor. Other materials not sampled are assumed to contain asbestos at this time and should be tested if impacted by the renovation work. Lead containing paint is present but is not subject DTSC disposal regulations. The contractor will however need to comply with Cal-OSHA lead regulations during demolition. The ceramic tiles tested do not contain lead, but there were several tiles we did not test and are assumed to contain lead. Universal hazardous waste will also need to be removed and recycled or disposed as hazardous waste (if impacted during the renovations). If areas of the building are not being demolished, the asbestos (and lead) materials to remain should to be managed under an asbestos Operations and Maintenance (O&M) program, and disclosed to employees, occupants and contractors (if the building is to remain in use).

6.0 Recommendations

6.1 ACMs/LCMs During Building Demolition or Renovations

1. Notify potential renovation contractors of the presence of ACM in the building. Disturbance of ACM requires special training and procedures. A Cal-OSHA registered asbestos contractor is required for most ACM removals. BAAQMD regulations require that ACM be properly removed and disposed, prior to demolition or renovation where they would be disturbed. The removal of RACMs requires notification to the BAAQMD 10-days prior to friable removal or if mechanical methods will be used. If additional suspect materials are discovered, the asbestos contractor would be required to abate these as well.

2. Notify potential renovation or demolition contractors of the presence of lead containing paints. Disturbance of the paints requires compliance with Cal-OSHA’s lead in construction regulation.

3. Materials that are assumed to contain asbestos should be sampled to confirm whether or not they would need to be removed prior to demolition.

4. The fluorescent lights, batteries and mercury thermostats in the building will require dismantling and recycling. The fluorescent light ballasts may contain PCBs, which require disposal as hazardous wastes.

5. Although there is no regulatory requirement for it, it would be advisable to develop either a work plan or specification for the handling of asbestos, lead and hazardous materials during abatement.

6. The demolition contractor can recycle other universal hazardous wastes such as hydraulic oils, if specifically included in their scope of work.

6.2 Managing ACM/LBP in Place (For Portions to Remain)

1. If the buildings (of portions there-of) are not abated, the owner will need to notify building occupants and employees of the presence of asbestos, as required under California Health and Safety Code 25915.7-25919.7 (Connelly Bill) and by Cal-OSHA regulations. The materials have a low fiber release potential if it remains undisturbed. Notify contractor and maintenance employees of this report.

2. Prepare and implement an O&M program to manage ACMs that will remain in place. This asbestos O&M program should detail roles and responsibilities for managing ACM at the


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complex. The O&M program should establish written policies and procedures for asbestos safe work practices to minimize the potential for unauthorized disturbance of ACM, monitor the condition of ACM and respond to damage or deterioration of ACM, with the goal of preventing the release of airborne asbestos fibers. Implementation of the O&M program will require that facility employees receive annual asbestos training. The O&M program should remain in place as long as ACM remains in the buildings.

3. The presence of deteriorated lead containing paints must also be stabilized to comply with lead paint regulations. This work must follow procedures for lead-safe work practices as required by EPA and California laws.

4. The California - Proposition 65 rules require posting a sign warming of potential hazards because of the presence of asbestos.

7.0 Limitations

Reasonable effort was made by Acumen personnel to locate and sample suspect materials. However, for any facility or building, the existence of unique or concealed ACM or lead-containing materials and debris is a possibility. Acumen does not warrant, guarantee, or profess to have the ability to locate or identify all ACM or other hazardous materials at this facility. The intent of this report is for use in planning, for demolition purposes. All quantities of materials identified in this report should be field verified by contractors prior to submitting bids to perform abatement work. Additional confirmatory sampling and detailed quantification may be required if the renovation work uncovers additional suspect materials. The report is not intended as a CDPH or HUD defined “lead hazard evaluation” or “lead inspection”. Acumen provided these services consistent with the level and skill ordinarily exercised by members of the profession currently providing similar services under similar circumstances at the time the services were provided. This statement is in lieu of other statements either expressed or implied. This report is intended for the sole use of the named client and their designees. The scope of services performed in execution of this evaluation may not be appropriate to satisfy the needs of certain other users, and use or re-use of this document, the findings, conclusions, or recommendations is at the risk of said user. As with all such assessments, the results of the sampling represent conditions found on the date of the survey and may not represent conditions found at other times. Additionally, this assessment was limited with respect to the specific parameters indicated above and should not be construed to be a comprehensive evaluation or a definitive representation of all conditions within the facility. The information presented in this report is intended to be used as a guide to evaluate the need for materials removal, further investigation or the need for modifications to the processes or procedures surveyed. The client should recognize that all testing and remediation methods have reliability limitations, no method or number of sampling locations can guarantee that a condition will be discovered within the performance of the services as authorized by the client. Additionally, the passage of time may result in a change in the environmental characteristics at this site. This report does not warrant against future operations or conditions that could affect the recommendations made. The results, findings, conclusions, and recommendations expressed in this report are based only on conditions that were observed during Acumen’s inspection of the site.

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Table 1

Asbestos Containing Material North Berkeley Senior Center

1901 Hearst Avenue Berkeley, CA 94702

December 13, 2017

Location Material Results1 BAAQMD2 EQ3 Sample No.

1st Floor - Cafeteria 12x12" Beige and Brown Vinyl Floor Tile Floor Tile: 3% CH Black Mastic: 5% CH

Cat I NF 8,500 COB1712-01A

1st Floor - Kitchen Closet 12x12" Beige and Brown Vinyl Floor Tile Floor Tile: 3% CH Black Mastic: 5% CH

Cat I NF See above COB1712-01B

1st Floor - Game Room B 12x12" Beige and Brown Vinyl Floor Tile Floor Tile: 3% CH Black Mastic: 5% CH

Cat I NF See above COB1712-01C

2nd Floor - Closet 12x12" Beige and Brown Vinyl Floor Tile Floor Tile: 3% CH Black Mastic: 5% CH

Cat I NF See above COB1712-01D

2nd Floor - Classroom A 12x12" Beige and Brown Vinyl Floor Tile Floor Tile: 3% CH Black Mastic: 3% CH

Cat I NF See above COB1712-01E

1st Floor - Cafeteria Brown Baseboard Mastic Brown Mastic: < 1% CH Non-RACM Not Quantified COB1712-02A

1st Floor - Studio Brown Baseboard Mastic Brown/Beige Mastic: < 1% CH

Non-RACM See above COB1712-02B

1st Floor - Game Room B Brown Baseboard Mastic Brown Mastic: < 1% CH Non-RACM See above COB1712-02C

2nd Floor - Closet Brown Baseboard Mastic Brown/Beige Mastic: < 1% CH

Non-RACM See above COB1712-02D

2nd Floor - Hall Brown Baseboard Mastic Brown Mastic: < 1% CH Non-RACM See above COB1712-02E

Table 1 (continued)

Asbestos Containing Material North Berkeley Senior Center

Berkeley, CA 94702

December 13, 2017

Page 2 of 2

Location Material Results1 BAAQMD2 EQ3 Sample No.

Community Cafeteria/ Multipurpose Room

1x1’ Ceiling Tile Mastic Assumed Cat I NF 5,000 SF -

Kitchen 4x8” Red Ceramic Floor Tiles Assumed Cat I NF 700 SF -

Kitchen 6x6” Yellow Ceramic Wall Tiles Assumed Cat I NF 500 SF -

Upper Floor Men’s Restroom 2x2” Blue/White Ceramic Tiles Assumed Cat I NF 200 SF -

Exterior Stucco Assumed RACM 3,800 SF -

Roofing System Built Up Roof, Felts and Mastics Assumed Cat I NF 16,800 SF -

Exterior Caulking Assumed Cat I NF 750 LF -

Footnotes

1. Results report percent (%) asbestos as determined by polarized light microscopy (PLM). Samples that are marked Point Count were analyzed by NIOSH 7400 method as determined by PLM 400 Point Count method and are reported as percentage (%) asbestos. CH = Chrysotile asbestos; AC = Actinolite asbestos; TR = Tremolite asbestos; AM = Amosite asbestos; CR = Crocidolite; PP = sample was not analyzed because of Prior Positive; Trace = levels of asbestos is less than 1%; and ND = no asbestos detected.

2. BAAQMD indicates classification into friable as Regulated Asbestos Containing Material (RACM) or Category I or Category II Non-Friables. Depending on methods of removal Category I or II non-friable ACMs could become rendered into friable/RACM. BAAQMD classifications are non-applicable (N/A) for materials with results that are ND for asbestos.

3. EQ means estimated quantity either in square feet (SF) linear feet (LF), or each unit (EA). Estimated quantities are non-applicable (N/A) for materials with results that are ND for asbestos.

Estimated quantities should be confirmed by an abatement contractor prior to bid or removal. TBD = To Be Determined.

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Table 2

Non-Asbestos Containing Materials North Berkeley Senior Center


December 13, 2017

Location Material Results1 Sample No.

1st Floor - Cafeteria Drywall and Taping Mud Drywall: ND Taping Mud: ND

Tape/Paint: ND

COB1712-03A

1st Floor - Studio Drywall and Taping Mud Drywall: ND Taping Mud: ND

Paint: ND

COB1712-03B

2nd Floor - Closet Drywall and Taping Mud Drywall: ND Taping Mud: ND

Paint: ND

COB1712-03C

2nd Floor - Women’s Restroom Drywall and Taping Mud Drywall: ND Taping Mud: ND

Paint: ND

COB1712-03D

2nd Floor - Library Drywall and Taping Mud and Texture

Drywall: ND Taping Mud: ND

Tape/Paint: ND

COB1712-03E

1st Floor - Kitchen 2x4" Ceiling Tile Ceiling Tile: ND COB1712-04A

1st Floor - Hall 2x4" Ceiling Tile Ceiling Tile: ND White Coating: ND

COB1712-04B

2nd Floor - Library 2x4" Ceiling Tile Ceiling Tile: ND White Coating: ND

COB1712-04C

1st Floor - Kitchen Office Beige/Sand Vinyl Sheet Flooring

Sheet Vinyl: ND Yellow Mastic/Dirt: ND

COB1712-05A

1st Floor Hallway Carpet Mastic Yellow/Tan Mastic: ND COB1712-06A

1st Floor - Bottom of West Stairs Carpet Mastic Yellow/Tan Mastic: ND COB1712-06B

2nd Floor - Hallway Carpet Mastic Yellow/Tan Mastic: ND COB1712-06C

1st Floor - Men’s Restroom 2x2" Ceramic Tile Mastic Ceramic Tile: ND White Mortar: ND

Yellow/White Adhesive: ND

COB1712-07A

Table 2 (continued) Table 2: Analytical Results Summary of Bulk Sampling for Lead-Containing Materials

Non-Asbestos Containing Materials North Berkeley Senior Center


December 13, 2017

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Location Material Results1 Sample No.

2nd Floor - Women’s Restroom 6x6" Ceramic Tile Mastic Ceramic Tile: ND Gray Grout: ND

Yellow/Tan Adhesive: ND Wall Compound: ND

COB1712-07B

2nd Floor - Classroom A 1x1" Ceiling Tile Ceiling Tile: ND White Coating: ND

COB1712-08A

Footnote 1. Samples were analyzed by polarized light microscopy (PLM) and reported as not containing detectable amounts of asbestos. ND indicates

that asbestos was not detected.

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Table 3 Table 3: Summary of Lead Paint Sample Results

Summary of Lead Paint Sample Results North Berkeley Senior Center


December 13, 2017

Location Material Result1 Condition2 Sample No.

1st Floor Cafeteria White Paint on Drywall < 67 Intact COB1712-PB01

1st Floor Studio Pink Paint on Drywall < 82 Intact COB1712-PB02

2nd Floor Closet Yellow Paint on Drywall 93 Intact COB1712-PB04

Footnote 1. Samples are analyzed by Flame Atomic Absorption Spectrometry (AAS). U.S. EPA SW-846 Method 7000B is used for the instrumental

analysis. Nitric acid and hydrogen peroxide digestion procedures are based on ASTM E-1645. Results reported in milligram per kilogram (mg/kg) or parts per million (ppm). The “<” sign means below analytical detection limit.

2. Intact paint requires no lead-stabilization; Deteriorated paint must be stabilized prior to demolition or renovation.

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Table 4 Table 4: Summary of Lead TTLC Sample Results

Summary of Lead TTLC Sample Results North Berkeley Senior Center


December 13, 2017

Location Material Result1 Sample No.

1st Floor Men’s 2x2" Beige Brown Ceramic Tile < 9.1 COB1712-PB03

2nd Floor - Women’s 6x6" Yellow Orange Ceramic Tile < 8.6 COB1712-PB05

2nd Floor - Women’s 2x2" Orange Ceramic Tile < 9.2 COB1712-PB06

Footnote 1. Samples are analyzed by Total Threshold Limit Concentration (TTLC) in accordance with EPA Methods 3050B for Acid Digestion (SW

846, 3rd edition, 2007) and 7420 for Analysis (SW-846, 3rd edition, 2007). Results reported in milligram per kilogram (mg/kg) or parts per

million (ppm). The “<” sign means below analytical detection limit (none detected). Ceramic tile contains more than 1,000 ppm lead would be classified as California hazardous wastes. If ceramic tile contains greater than 50 ppm lead but less than 1,000 ppm lead, then it should also be removed and tested for leachable lead per the STLC/TCLP methods, prior to demolition or renovation. If less than 50 ppm, abatement is not required.

ACUMEN

INDUSTRIAL HYGIENE INC


TEL 415 242 6060 FAX 415 242 6006

WWW.ACUMEN-IH.COM

A

Appendix A Appendix A Laboratory Reports

Laboratory Reports

North Berkeley Senior Center 1901 Hearst Avenue Berkeley, CA 94702

December 13, 2017

ACUMEN



TEL 415 242 6060 FAX 415 242 6006

WWW.ACUMEN-IH.COM

A

Appendix B Appendix B Sample Location Floor Plans

Sample Location Floor Plans


December 13, 2017

1

Vertical Sample

Floor Sample Ceiling Sample

Red Asbestos Containing Material Blue Lead Sample * Floorplan is not to scale.

_A_ ACUMEN INDUSTRIAL HYGIENE INC

1032 IRVING STREET #922

SAN FRANCISCO CA 94122

415 242 6060

WWW.ACUMEN-IH.COM

Proj

ect

Nor

th B

erke

ley

Seni

or C

ente

r 19

01 H

ears

t Ave

nue

Ber

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y, C

A

Project No. Date

COB 1712 12/13/17

Location

-

Level

First Floor

2

Vertical Sample

Floor Sample Ceiling Sample

Red Asbestos Containing Material Blue Lead Sample * Floorplan is not to scale.

_A_ ACUMEN INDUSTRIAL HYGIENE INC

1032 IRVING STREET #922

SAN FRANCISCO CA 94122

415 242 6060

WWW.ACUMEN-IH.COM

Proj

ect

Nor

th B

erke

ley

Seni

or C

ente

r 19

01 H

ears

t Ave

nue

Ber

kele

y, C

A

Project No. Date

COB 1712 12/13/17

Location

-

Level

Second Floor

ACUMEN



TEL 415 242 6060 FAX 415 242 6006

WWW.ACUMEN-IH.COM

A

Appendix C Appendix C Photographs

Photographs


December 13, 2017

Photo 1

The 1978 building consists of a two-stories with several classrooms, meeting rooms and a community cafeteria/multipurpose room and kitchen that serves as the North Berkeley

Senior Center.

Photo 2

The gypsum board walls and ceilings throughout do not have asbestos but the cove-base mastic contains (<1%, trace asbestos).

Photo 3

Due to access issues we did not sample the 1x1’ ceiling tiles in the community cafeteria/multipurpose room and additional testing is recommended, if these are to be

removed

Photo 4

The 12x12” cream with brown streaks vinyl floor tiles contains 3% asbestos and the associated black mastic contains 3% to 5% asbestos

Photo 5

Photo 6

Due to the use of the kitchen space, we could not sample the ceramic tiles in the kitchen. (Two types are present: 4x8” red floor tiles and 6x6” yellow ceramic tiles on walls).

Photo 7

The blue/white 2x2” ceramic tiles in upper floor men’s restroom were also not sampled.

Photo 8

Universal hazardous wastes are present and include mercury in thermostats, lighting tubes/ballasts, exit signs (batteries) and smoke detectors, (Photo 8).

COB 1712 R (901 Hearst NBSC) - Berkeley, California · Client. The building is located at 1901...

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