Gardena City Council
May 28, 2024

G. Interior final finishes: Materials and products that will be exposed at interior, occupied spaces; including flooring, wallcovering, finish carpentry, and ceilings.

H. Municipal Solid Waste Landfill: A permitted facility that accepts solid, nonhazardous waste such as household, commercial, and industrial waste, including construction and demolition waste.

I. Packaged dry products: Materials and products that are installed in dry form and are delivered to the site in manufacturer's packaging; including carpets, resilient flooring, ceiling tiles, and insulation.

J. Sediment: Soil and other debris that has been eroded and transported by storm or well production runoff water.

K. Sanitary wastes:

1. Garbage: Refuse and scraps resulting from preparation, cooking, distribution, or consumption of food.

2. Sewage: Domestic sanitary sewage.

L. Wet products: Materials and products installed in wet form, including paints, sealants, adhesives, and special coatings.

1.3 SUBMITTALS
A. Solid Waste Management and Environmental Protection Plan: Prepare and submit at the Preconstruction Meeting a Solid Waste Management and Environmental Protection Plan including, but not limited to, the following:

1. Procedures for Recycling/Re-Use Program in compliance with the City Community Development Department’s Waste Management and Recycling Plan.

TP-29
SECTION 01 7419

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 3

2. Revise and resubmit Solid Waste Management and Environmental Protection Plan as required by the City Community Development Department’s Waste Management and Recycling Plan.
a. Approval of the Contractor's Solid Waste Management and Environmental Protection Plan, will not relieve the Contractor of responsibility for adequate and continuing control of pollutants and other environmental protection measures.

B. With each Contractor's Report as specified in Section 01 4000 – Quality Requirements, submit an updated Summary Of Solid Waste Disposal And Diversion. Submit on form in Appendix A of this Section. Include manifests, weight tickets, receipts, and invoices specifically identifying the Project and waste material for:

1. Municipal Solid Waste Landfills.

2. Recycling/Reuse Facilities.

C. With Record Submittals as specified in Section 01 7704 - Closeout Procedures and Training, submit the following:

1. Final Summary Of Solid Waste Disposal And Diversion. Submit on form in Appendix A of this Section.

2. Resource Conservation and Recovery Act Project Summary. Submit on form in Appendix B of this Section.

PART 2 PRODUCTS - NOT USED
PART 3 EXECUTION

3.1 RECYCLING AND REUSE
A. Collection: Implement a recycling/reuse program that includes separate collection of waste materials of the following types as appropriate to local and regional recycling/reuse facilities:

1. Metal.
a. Ferrous & Non-ferrous.

2. Debris.

3. Paper/Cardboard.

4. Plastic / Vinyl

5. Gypsum.

6. Paint.

7. Concrete / CMU

8. Glass

9. Wood

10. Ceramic Tile

11. Others as appropriate.

TP-30
SECTION 01 7419

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 4 B. Recycling/reuse centers: Contact governmental solid waste offices, Environmental Protection Agency (EPA) regional offices, and applicable nonprofit organizations.

1. Metal.
a. Ferrous & Non-ferrous.

2. Debris.

3. Paper/Cardboard.

4. Plastic / Vinyl

5. Gypsum.

6. Paint.

7. Concrete / CMU

8. Glass

9. Wood

10. Ceramic Tile

11. Others as appropriate.

C. Handling:

1. Clean materials which are contaminated prior to placing in collection containers. Deliver materials free of dirt, adhesives, solvents, petroleum contamination, and other substances deleterious to recycling process.

2. Arrange for collection by or delivery to the appropriate recycling or reuse facility.

D. Participate in re-use programs: identify local and regional re-use programs, including but not limited to non-profit organizations such as schools, local housing agencies, and public arts programs, that accept used materials. The following are examples for contractor's information only.

1. National materials exchange network, such as CAL-MAX a free service provided by various state and regional offices, designed to help businesses find markets for materials that traditionally would be discarded. The premise of the program is that material discarded by one business may be a resource for another business.
a. Items and regions covered by materials exchange programs may vary.

Contact the applicable regional materials exchange program. In California, contact CAL-MAX at (916) 255-2369.

2. Habitat For Humanity, a non-profit housing organization that rehabilitates and builds housing for low income families.
a. Sites requiring donated materials vary. Contact the national hotline (800) HABITAT.

E. Rebates, tax credits, and other savings obtained for recycled or re-used materials accrue to Contractor.

3.2 ENVIRONMENTAL CONTROLS
TP-31
SECTION 01 7419

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 5 A. Protection of natural resources: Preserve the natural resources within the Project boundaries and outside the limits of permanent Work performed under this Contract in their existing condition or restore to an equivalent or improved condition as approved by the Engineer, upon completion of the Work.

1. Confine demolition and construction activities to work area limits indicated on the Drawings and as directed by the Engineer.
a. Temporary construction: As specified in Section 01 5000 - Temporary Facilities And Controls.
b. Demolition and salvage operations: As specified in Section 02 4119 - Selective Structure Demolition.
c. Disposal operations for demolished and waste materials that are not identified to be salvaged, recycled or reused:
1) Remove debris, rubbish, and other waste materials resulting from demolition and construction operations, from site.
2) No burning permitted.
3) Transport materials with appropriate vehicles and dispose off-site to areas which are approved for disposal by governing authorities having jurisdiction.
4) Avoid spillage by covering and securing loads when hauling on or adjacent to public streets or highways. Remove spillage and sweep, wash, or otherwise clean project site, streets, or highways.
5) Comply with applicable regulations.

2. Water resources as follows:
a. Comply with requirements of the National Pollutant Discharge Elimination System (NPDES) and the State Pollutant Discharge Elimination System (SPDES).
b. Oily substances: Prevent oily or other hazardous substances from entering the ground, drainage areas, or local bodies of water. 1) Store and service construction equipment at areas designated for collection of oil wastes.
c. Mosquito abatement: Prevent ponding of stagnant water conducive to mosquito breeding habitat.
d. Prevent run-off from site during demolition and construction operations.

3. Land resources: Prior to construction, identify land resources to be preserved within the Work area. Do not remove, cut, deface, injure, or destroy land resources including trees, shrubs, vines, grasses, top soil, and land forms without permission from The City.

4. Air Resources: Prevent creation of dust, air pollution, and odors. a. Use water sprinkling, temporary enclosures, and other appropriate methods to limit dust and dirt rising and scattering in air to lowest practical level.
1) Do not use water when it may create hazardous or other adverse conditions such as flooding and pollution.
b. Store volatile liquids, including fuels and solvents, in closed containers. c. Properly maintain equipment to reduce gaseous pollutant emissions.

TP-32
SECTION 01 7419

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 6 d. Interior final finishes: Schedule construction operations involving wet products prior to packaged dry products to the greatest extent possible in accordance with the approved City Community Development Department’s Waste Management and Recycling Plan.
e. Temporary Ventilation: As specified in Section 01 5000 - Temporary Facilities And Controls, and as follows:
1) Provide adequate ventilation during and after installation of interior wet products and interior final finishes.
2) Provide adequate ventilation of packaged dry products prior to installation. Remove from packaging and ventilate in a secure, dry, well-ventilated space free from strong contaminant sources and residues. Provide a temperature range of 60 degrees F minimum to 90 degree F maximum continuously during the
ventilation period. Do not ventilate within limits of Work unless otherwise approved by City Engineer.
f. Pre-occupancy ventilation: After final completion and prior to initial occupancy, provide adequate ventilation for minimum 5 days. Preoccupancy ventilation procedures:
1) Use supply air fans and ducts only;
2) Temporarily seal exhaust ducts;
3) Temporarily disable exhaust fans;
4) Provide exhaust through operable windows or temporary openings.
5) Provide temporary exhaust fans as required to pull exhaust air from deep interior locations. Stair towers may be used for exhausting air from the building during the temporary ventilation. 6) After pre-occupancy ventilation and prior to final testing and balancing of HVAC system, replace air filters and make HVAC system fully operational.

5. Noise Control: Perform demolition and construction operations to minimize noise. Perform noise producing work in less sensitive hours of the day or week as directed by the Engineer .
a. Repetitive, high level impact noise will be permitted only between the hours permitted in the City Noise Ordinance. Do not exceed the limitations specified by OSHA.
b. Provide equipment, sound-deadening devices, and take noise abatement measures that are necessary for compliance.

END OF SECTION
TP-33
SECTION 01 7419

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 7 Appendix A

SUMMARY OF SOLID WASTE DISPOSAL AND DIVERSION
Project Name:

Contractor Name: License Number:

Contractor Address:

Solid Waste Date Amount Municipal Solid Recycling/Reuse Comments Material Material Disposed/ Waste Facility Facility (if disposed, Disposed/ Diverted (name, address, & (name, address, & state why Diverted (ton or cu.yd) phone number) phone number) not diverted) Metal
Debris
Paper/
Cardboard
Plastic
Gypsum
Paint
Concrete/CMU
Glass
Wood
Ceramic Tile
Other:

Signature: Date:

TP-34
SECTION 01 7700

CONTRACT CLOSEOUT
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7700 - 1 PART 1 - GENERAL

1.1 SECTION INCLUDES
A. This Section includes administrative and procedural requirements for Contract Closeout, including but not limited to, the following:

1. Inspection procedures.

2. Project record documents submittal.

3. Final cleaning.

1.2 RELATED REQUIREMENTS:

1. Section 01 2976 - Progress Payment Procedures.

2. Section 01 3300 - Submittal Procedures.

3. Section 01 5000 - Construction Facilities and Temporary Controls.

PART 2 – PRODUCTS (Not used)
PART 3 - EXECUTION

3.1 SUBSTANTIAL COMPLETION
A. Inspection Procedures: On receipt of the Request For Certificate of Substantial Completion, City will authorize commencement of inspection.

INSPECTOR, CITY, CONTRACTOR and ARCHITECT will inspect the Work.

1. If after inspection of the Work, CITY does not consider the Work substantially complete, CITY will notify CONTRACTOR.

2. If after inspection, CITY considers the Work substantially complete, INSPECTOR shall prepare a comprehensive Punch List of items to be corrected.
a. INSPECTOR may repeat inspection to assure the Work is corrected.
b. Results of the completed inspection will form a partial basis of the requirements for Release of Retention.

TP-35
SECTION 01 7700

CONTRACT CLOSEOUT
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7700 - 2

3.2 ADMINISTRATIVE CLOSEOUT
A. Re-inspection Procedures: INSPECTOR, CITY, CONTRACTOR and ARCHITECT may inspect the Work upon notice, including final inspection of Punch List items from earlier inspections, has been corrected, except for items whose completion is delayed under circumstances acceptable to CITY.

1. OWNER has the right to preclude CONTRACTOR from Punch List correction and documents submittals after the Contract Completion date; unless OWNER elects to authorize CONTRACTOR to extend Administrative Contract duration. CONTRACTOR will be assessed actual cost for the unsettled items. Withholds amounts exceeding actual costs to correct or to obtain deliverable will be released.

2. If allowed by the CITY, re-inspection will be repeated, but may be assessed against CONTRACTOR if OWNER is subject to additional professional service and or additional costs of inspection.

3.3 PROJECT RECORD DOCUMENT SUBMITTAL
A. General: Do not use project record documents for construction purposes.

Protect record documents from deterioration and loss. Provide access to record documents for ARCHITECT, INSPECTOR and CITY reference during normal working hours. Project record document shall be updated on a weekly basis. Prior to submitting each application for payment, secure INSPECTOR and ARCHITECT approval of project record documents.

B. Record Drawings: Maintain a clean, undamaged set of prints of Drawings and Shop Drawings. Mark the set to show the actual installation where the installation varies substantially from the Work as originally shown. Mark the Drawing that is most capable of showing conditions fully and accurately.

Where Shop Drawings are used, record a cross-reference at the corresponding location on the Drawings. Provide detailed and accurate field dimensions for concealed elements that would be difficult to measure and record at a later date.

1. Mark record sets with red erasable pencil. Use other colors to distinguish between variations in separate categories of the Work.

Date and number entries in the same format as submitted. Call attention to entry by a “cloud” around the affected areas.

2. Mark new information important to OWNER but was not shown on Drawings or Shop Drawings.

3. Utility location and depth below finished grade and above ceilings and attic spaces shall be fully dimensioned and indicated on record TP-36
SECTION 01 7700

CONTRACT CLOSEOUT
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7700 - 3 drawings. Dimensions shall be measured from building lines or permanent landmarks and shall be triangulated to those features.

4. Note related Change Order or Construction Directive numbers where applicable. RFC submissions shall be referenced on each affected sheet, Drawing and Shop Drawing.

5. Organize record drawing sheets into manageable sets. Bind sets with durable-paper cover sheets; print suitable titles, dates, and other identification on the cover of each set.

6. Prior to Contract Completion of the Work, review of the project record drawings by ARCHITECT; prepare a final set of project record drawings using reproducible vellum. Submit final set of transparencies to ARCHITECT.

C. Record Specifications: Maintain two complete copies of the Specifications, including Addenda. Include with the Specifications two copies of other written Contract Documents, such as Change Orders or Construction Directives issued during construction.

1. Mark these record documents to show substantial variations in actual Work performed in comparison with the text of the Specifications and modifications.

2. Give particular attention to substitutions and selection of options and information on concealed Work that cannot otherwise be readily discerned later by direct observation.

3. Note related record document information with Product Data.

4. Prior to Contract Completion of the Work, submit record Specifications to ARCHITECT for OWNER records.

D. Record Product Data: Maintain two copies of each Product Data submittal.

Note related Change Orders and Construction Directives and mark-up of record drawings and Specifications.

1. Mark these documents to illustrate significant variations in actual Work performed in comparison with information submitted. Include variations in products delivered to the Project site and from the manufacturer’s installation instructions and recommendations.

2. Provide detailed and accurate information regarding concealed products and portions of Work that cannot otherwise be readily discerned later by direct observation.

TP-37
SECTION 01 7700

CONTRACT CLOSEOUT
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7700 - 4

3. Prior to Contract Completion, submit complete set of record Product Data to ARCHITECT for OWNER records.

E. Record Samples: Immediately prior to Substantial Completion, CONTRACTOR shall meet with ARCHITECT and CITY at the Project site to determine which Samples are to be transmitted to OWNER for record purposes. Comply with CITY instructions regarding delivery to OWNER storage area.

F. Miscellaneous Records: Refer to other Specification sections for requirements of miscellaneous record keeping and submittals in connection with actual performance of the Work. Prior to the date of Contract Completion, complete and compile miscellaneous records and place in good order. Identify miscellaneous records properly and bind or file, ready for continued use and reference. Submit to Architect for OWNER records.

3.4 FINAL CLEANING
A. General: Related sections of the Contract Documents specify general cleaning during performance of the Work. General cleaning is included in Division 01 Section “Construction Facilities and Temporary Controls”.

B. Cleaning: Employ experienced workers or professional cleaners for final cleaning. Clean each surface or unit to the condition expected in a normal, commercial building cleaning and maintenance program. Comply with manufacturer’s instructions.

1. Complete the following cleaning operations before requesting inspection for a certificate of Substantial Completion. a. Clean the Project site, including landscape development areas, of rubbish, litter, and other foreign substances. Sweep paved areas broom clean; remove stains, spills, and other foreign deposits. Rake grounds that are neither paved nor planted to a smooth, even-textured surface.

END OF SECTION
TP-38
SECTION 02 4113

SITE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 1 PART 1 - GENERAL

1.1 DESCRIPTION
A. This section describes demolition of items specified herein and shown on the drawings.

1.2 RELATED WORK SPECIFIED ELSEWHERE
A. Section 017419, Construction Waste Management Disposal B. Section 028200, Asbestos Abatement
C. Section 311000, Site Clearing

1.3 SUMMARY
Provide labor, materials and equipment as necessary to complete work as indicated on the Drawings and specified herein.

A. This section includes the removal of existing structures, fences, pavements, and other items indicated on the Drawings or specified, or both.

B. Related sections include the following:

1. Division 01 Section “Temporary Facilities and Controls.”

2. Division 31 Section “Site Clearing.”

3. Division 31 Section “Excavation Fill Paving.”

1.4 PROJECT CONDITIONS
A. Do not close or obstruct streets, walks or other occupied or used facilities without permission from the Project Representative. Provide alternate routes around closed or obstructed traffic ways if required.

PART 2 - PRODUCTS
Not Used.

TP-39
SECTION 02 4113

SITE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 2 PART 3 - EXECUTION

3.1 GENERAL
A. Demolish and remove all work items within the scope of work noted in the drawings in the manner specified.

3.2 ENVIRONMENTAL CONSIDERATIONS
A. Nuisance Dust Control:

1. Demolition debris that contains dust or other material that could become airborne or create a nuisance shall either be removed from the work site daily, or shall be covered and secured with tarps or sheeting until removed from the site.

2. Apply a water mist, or other means approved by the city, on debris to control or mitigate airborne dust or airborne nuisances, unless the material will become friable (i.e., crumble easily) or will dissolve in water. Friable material and material that may dissolve in water shall be securely covered with tarps or sheeting.

3. Demolition debris that becomes friable when wetted or will dissolve in water shall be stored only on impervious surfaces, field-installed ground sheeting, or other barriers.

B. Demolition Debris:

1. Manage demolition material as hazardous waste or solid waste in accordance with these specifications.

2. Unless specifically identified in the contract documents or approved by the City, no demolition debris shall be placed as fill material or otherwise disposed of on City property.

3. Minimize the volume of accumulated demolition debris.

4. Metal and other material salvage or recycling operations shall be performed in a defined area within the work site.

5. Temporary storage and piling of demolition debris is not permitted unless storage piles are covered and secured with tarps or sheeting. The city may waive this requirement if the material does not contain dust or other materials that could become airborne or contaminate stormwater.

C. Blasting will not be permitted.

3.3 REMOVAL AND PLUGGING OF ABANDONED PIPES
A. Abandoned pipes or portions of other exposed items shall be removed.

B. Cap or plug the ends of partially removed pipes to produce a watertight seal.

TP-40
SECTION 02 4113

SITE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 01 7419 - 3 C. Contact the City for direction if unidentified utilities are uncovered during the work.

D. Dispose of removed pipes off City property at no added cost to the City.

3.4 SITE RESTORATION
A. See soils report for recommended grade fill material and the depth cover of earth is obtained over such material.

B. Grade fill material in a manner to avoid causing interference with existing drainage patterns and to avoid water ponding.

C. See Section 311000, Site Clearing.

3.5 DISPOSAL OF DEMOLISHED MATERIALS
A. Remove demolition waste materials from the work site and dispose of them off City property in accordance with local, state, and federal laws and regulations.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Do not burn demolished materials.

C. See Section 017419, Construction Waste Management Disposal, for recycling requirements.

3.6 CLEANING
A. Clean adjacent structures and improvements of dust, dirt, and debris caused by building demolition operations. Return adjacent areas to condition existing before building demolition operations began.

END OF SECTION
TP-41

TECHNICAL SPECIFICATIONS
SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 4119 - 1 PART 1 - GENERAL

1.1 SUMMARY
A. Section Includes:

1. Procedures for demolition and removal of existing building elements.

2. Removal of designated building equipment and fixtures.

B. Related Documents: The Contract Documents, as defined in Section 01 1000- Summary of Work, apply to the Work of this Section. Additional requirements and information necessary to complete the Work of this Section may be found in other documents.

C. Related Sections:

1. Section 01 3543 - Environmental Procedures: Recycling and reuse of waste materials.

1.2 SYSTEM DESCRIPTION
A. The extent of Selective Demolition Work is that Work necessary, and required to facilitate the new construction indicated.

B. Demolition shall be such that all construction, new and existing, can be performed, and completed in accordance with the construction documents.

C. The contractor shall visit the project site and familiarize himself with the existing conditions and project requirements.

D. Verify the scope of the Work under this Section including salvage material. The City will be responsible for removing all materials and equipment which the City wishes to salvage prior to the beginning of this Work.

1.3 QUALITY ASSURANCE
A. Performance Criteria:

1. Requirements of Structural Work: Do not cut structural work in a manner resulting in a reduction of load-carrying capacity of load/deflection ratio.

2. Operational and Safety Limitations: Do not cut operational elements and safety-related components in a manner resulting in a reduction of capacities to perform in a manner intended or resulting in a decreased operational life, increased maintenance or decreased safety.

TP-42

TECHNICAL SPECIFICATIONS
SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 4119 - 2

3. Visual Requirements: Do not cut work which is exposed on the exterior or exposed in occupied spaces of the building in a manner resulting in a reduction of visual qualities or resulting in substantial evidence of the demolition work judged by the Engineer to be cut and patched in a visually unsatisfactory manner.

4. Loading: Do not superimpose loads at any point upon existing structure beyond design capacity including loads attributable to materials, construction equipment, demolition operations and shoring and bracing.

5. Vibration: Do not use means, methods, techniques or procedures which would induce vibration into any element of the structure.

6. Fire: Do not use means, methods, techniques or procedures which would produce any fire hazard unless otherwise approved by the Engineer.

7. Water: Do not use means, methods, techniques or procedures which would produce excessive water run-off, and water pollution.

8. Air Pollution: Do not use means, methods, techniques or procedures which would produce uncontrolled dust, fumes or other damaging air pollution.

1.4 PROJECT SITE
A. Indicated "Existing Construction" was obtained from existing drawings or other information which may not reflect actual conditions. The Contractor shall verify all existing conditions and notify the Engineer of discrepancies before proceeding with the Work.

B. Perform the removal, cutting, drilling, etc., of existing work with extreme care.

C. Occupancy: Contractor shall have full use of the facility during construction.

D. Condition of Structure: The City assumes no responsibility for the actual condition of portions of the structure to be demolished.

E. Partial removal: Items of salvageable value to the Contractor may be removed from the structure as the work progresses if not claimed by the City. Salvaged items must be transported from the site as they are removed.

F. Protection: Make sure that the safe passage of persons around the area of demolition is maintained during the demolition operation. Conduct operations to prevent injury to adjacent buildings, structures, other facilities, and persons.

1.5 PROTECTION OF EXISTING CONSTRUCTION
A. Provide temporary construction, constructed of framing and plywood, to protect existing construction and surrounding surfaces from damage by movement of materials and personnel.

TP-43

TECHNICAL SPECIFICATIONS
SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 4119 - 3 B. Repair, replace, or rebuild existing construction as required or as directed which has been removed, altered or disrupted to allow for new construction. Existing construction shall be corrected to match adjacent construction, new or existing.

C. Perform cutting of existing concrete and masonry construction with saws and core drills. Do not use jack-hammers or explosives.

PART 2 - PRODUCTS

2.1 SALVAGED MATERIALS
A. Removed and salvaged materials of value not designated for reinstallation, unless claimed as salvage by the City, shall become the property of the Contractor and shall be removed from the premises by the Contractor and recycled, reused or disposed of as specified in Section 01 3543- Environmental Procedures.

2.2 SALVAGED ITEMS FOR RE-USE
A. Materials and items scheduled for re-use which are damaged by the contractor to the extent which they cannot be re-used shall be replaced by the Contractor at no additional cost to the City.

PART 3 - EXECUTION

3.1 EXAMINATION
A. Verification of Conditions: Verify that field measurements, surfaces, substrates and conditions are as required, and ready to receive Work.

B. Report in writing to the Engineer prevailing conditions that will adversely affect satisfactory execution of the Work of this Section. Do not proceed with Work until unsatisfactory conditions have been corrected and approved by the Engineer.

C. By beginning Work, Contractor accepts conditions and assumes responsibility for correcting unsuitable conditions encountered at no additional cost to the City.

TP-44

TECHNICAL SPECIFICATIONS
SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 4119 - 4

3.2 PREPARATION
A. Temporary Support: Provide adequate temporary support for work to be cut to prevent failure. Do not endanger other work.

B. Provide adequate protection of other work during selective demolition to prevent damage and provide protection of the work from adverse weather exposure.

3.3 PROCEDURE
A. Employ only skilled tradesmen to perform selective demolition.

B. Cut work by methods least likely to damage work to the retained and work adjoining.

C. In general, where physical cutting action is required, cut work with sawing and grinding tools, not with hammering and chopping tools.

D. Where selective demolition terminates at a surface or finish to remain, completely remove all traces of material selectively demolished, including mortar beds.

Provide smooth, even, substrate transition.

3.4 POLLUTION CONTROLS
A. Use temporary enclosures and other suitable methods to limit the amount of dust and dirt rising and scattering in the air to the lowest practical level. Comply with AQMD standards.

B. Comply with governing authorities pertaining to environmental protection.

C. Clean adjacent portion of the structure and improvement of dust, dirt and debris caused by demolition operations, as directed by the Engineer and governing authorities. Return adjacent areas to its condition prior to the start of the work.

3.5 DISPOSAL OF DEMOLISHED MATERIALS
A. Collect, recycle, reuse, and dispose of demolished materials as specified in Section 01 3543 - Environmental Procedures and as approved by the City.

TP-45

TECHNICAL SPECIFICATIONS
SECTION 02 4119

SELECTIVE STRUCTURE DEMOLITION
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 4119 - 5

3.6 SCHEDULE OF SELECTIVE DEMOLITION
A. Provide additional selective demolition as indicated and required by the Contract Documents and as required for indicated new construction.

B. Items for demolition covered under the plans and these specifications include all items detailed in the drawings and other selective demolition required to complete the job.

C. Payment for items of work covered in the plans and Division 2 specification will be based on the lump sum bid price for building demolition and removals, no additional compensation will be allowed.

END OF SECTION
TP-46
SECTION 02 8200

ASBESTOS-RELATED DEMOLITION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 1 PART 1 - GENERAL

1.1 DESCRIPTION
A. This section consists of furnishing all work necessary to perform asbestosrelated demolition of asbestos-containing and/or contaminated materials located within the project limits. (Reference Appendix B, Asbestos & Lead survey report) All work shall be performed in accordance with all federal, state, and local requirements and statutes. The work specified herein shall be the removal of asbestos-containing materials by persons knowledgeable, qualified, trained, and experienced in the removal, treatment, handling, transportation, and disposal of asbestos-containing material, and the subsequent cleaning of the affected environment. These persons shall comply with all federal, state, and local regulations and mandated work practices, and shall be capable of performing the work in the Contract.

B. The entire facility will be vacant.

1.2 SCOPE OF WORK
A. General Requirements: Work of this section includes but is not limited to the following:

1. Obtaining all notifications and permits required to perform the work.

2. Developing a detailed asbestos-related demolition work plan, including work sequence, work area isolation, HVAC and electrical isolation and decommissioning, asbestos removal methods, and transport/disposal procedures. This work plan shall be coordinated with the lead-related demolition work plan in Section 02081.

3. Removing and legally disposing of all asbestos-containing materials (ACM) and asbestos contaminated materials disturbed by the project and removed from the project site.

4. Thoroughly cleaning the area of work and obtaining final visual inspection approval from the Client’s Representative. Clearance air monitoring performed by Phase Contrast Microscopy (PCM) (NIOSH Method 7400) will be performed for negative pressure enclosures.

5. The Contractor shall retain a third-party asbestos consulting firm to perform an exposure assessment and perform exposure monitoring. The third-party consulting firm shall perform monitoring for a minimum of two days while asbestos-related demolition is being performed.

6. The Contractor shall perform employee exposure monitoring as required by Cal-OSHA during the project.

B. Project Specific Requirements: The Contractor shall remove, transport, and properly dispose of the following materials. Refer to the drawings at the end of TP-47
SECTION 02 8200

ASBESTOS-RELATED DEMOLITION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 2 this section for the location of the materials referenced below. It is the abatement contractor’s responsibility to verify the quantities and location of all known asbestos-containing materials.

1. Approximately one hundred (100) asbestos-containing pipe elbows from above the ceilings on the first and second floor and in the mechanical room in the basement.

2. Asbestos-containing ceiling tile from the first and second floors of the building. Please note that the ceiling tile containing Amosite asbestos.

Approximately 5,000 square feet per floor.

1.3 RELATED WORK
A. SECTION 01 3300 – SUBMITTAL PROCEDURES
B. SECTION 01 4000 – QUALITY REQUIREMENTS

1.4 REQUIRED LICENSURE
A. The prospective Asbestos Abatement Contractor shall provide documentation of current and valid licensing in the State of California in accordance with the provisions of Chapter 9, Division (as amended) of the Business and Professions Code.

B. The prospective Asbestos Abatement Contractor shall provide documentation of current and valid certification in the State of California to perform asbestosrelated work by the Contractors' State License Board.

C. The prospective Asbestos Abatement Contractor shall provide documentation of current and valid registration with the California Department of Industrial Relations - Division of Occupational Safety and Health (DOSH) to perform asbestos-related work.

D. Transportation of Friable and Non-Friable Asbestos-Containing Materials:

Contractor shall itself be, or have a subcontractor that is, a registered hazardous waste transporter with the State of California, Department of Toxic Substances Control.

1.5 APPLICABLE DOCUMENTS AND REGULATIONS
A. It is the responsibility of the Contractor to know the current regulations controlling work and to perform all related work in accordance with such regulations that provide for worker and public safety against asbestos exposure.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 3 B. The publications listed below form a part of this specification to the extent referenced. The current issue of each document shall govern. Where conflict among requirements or with these Specifications exists, the more stringent requirements shall apply.

CODE OF FEDERAL REGULATIONS (CFR)
29 CFR Part 1910 Occupational Safety and Health
Standards for General Industry
29 CFR 1910.1200 Hazard Communications
29 CFR 1910.134 Respiratory Protection
29 CFR 1910.145 Specifications for Accident Prevention Signs and Tags
29 CFR 1910.1020 Access to Employee Medical Records
29 CFR Part 1926 Occupational Safety and Health Regulations for Construction
29 CFR 1926.1101 Construction Standard for Asbestos,
Tremolite, Anthophyllite and Actinolite
U.S. ENVIRONMENTAL PROTECTION AGENCEY (EPA)
40 CFR 61 Sub A & B General Provisions
40 CFR 61 Sub M National Emissions Standard for Hazardous Air Pollutants (NESHAP)
40 CFR 260 Hazardous Waste Management Systems:

General
40 CFR 261 Identification and Listing of Hazardous Waste 40 CFR 262 Standards Applicable to Generators of
Hazardous Waste
40 CFR 263 Standards Applicable to Transporters of
Hazardous Waste
40 CFR 264 Standards for Owners and Operators of
Hazardous Waste Treatment, Storage, and
Disposal Facilities
40 CFR 265 Interim Status Standards for Owners and
Operators of Hazardous Waste Treatment,
Storage, and Disposal Facilities
40 CFR 268 Land Disposal Restrictions
40 CFR 763 Sub G Worker Protection Rule
40 CFR 763 Asbestos Hazard Emergency Response Act
(AHERA)
U.S. DEPARTMENT OF TRANSPORTATION (DOT)
49 CFR 171 & 172 Transportation of Hazardous Waste

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 701 (1989) Methods of Fire Test for Flame Resistant TP-49
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 4 Textiles and Films

UNDERWRITERS LABORATORIES (UL)
UL 586 (1990) High-Efficiency Particulate Air
Filter Units

CALIFORNIA CODE OF REGULATIONS (CCR)
Title 8 5208 General Industry Safety Orders - Asbestos
Title 8 Article 2.5 Registration - Asbestos Related Work Title 8 5194 Hazard Communication
Title 8 1529 Construction Industry Safety Orders -
Asbestos
Title 22 Div. 4 Cpt. 30 Hazardous Waste Handling
CALIFORNIA LABOR CODE Section 6501.5-6505.5

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)
Rule 1403 Asbestos Emissions from Demolition /
Renovation Activities

1.6 NOTIFICATIONS AND PERMITS
A. Contractor shall make all required written notifications or applications to regulatory agencies including the following:

1. South Coast Air Quality Management District; SCAQMD
Notification shall be in accordance with Rule 1403.

2. California Division of Occupational Safety and Health; Notification shall be in accordance with Section 341.9 of Title 8 of the California Code of Regulations.

B. Notifying the appropriate City department to obtain permission to discharge filtered waste (shower) water to the sewer system, if applicable.

C. Obtaining any City permits required for asbestos abatement or construction activities.

D. The Asbestos Abatement Contractor shall provide a copy of all notices and permits to the City of Gardena.

1.7 SUPERVISOR/COMPETENT PERSON, FOREPERSON, AND WORKERS TP-50
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 5 A. The Contractor shall have an Asbestos-Related Demolition Supervisor/Competent Person present at all times while asbestos-related work on this Contract is in progress.

B. The Asbestos Related Demolition Supervisor/Competent Person shall have successfully completed a five (5) day EPA-approved Asbestos Abatement Contractor/Supervisor training course, and be thoroughly familiar and experienced with asbestos removal and related work, and shall be familiar with and enforce the use of all safety procedures and equipment. He/she shall be knowledgeable of all EPA, OSHA, and NIOSH requirements and guidelines.

C. In addition to the Asbestos-Related Supervisor/Competent Person, the Contractor shall furnish one (1) or more forepersons who have successfully completed a five (5) day EPA- approved Asbestos Abatement Contractor/Supervisor training course, and who are familiar and experienced with asbestos abatement and its related work, safety procedures, and equipment.

D. It shall be a requirement of this Contract that the Contractor’s Asbestos-Related Demolition Supervisor/Competent Person and one or more of the foremen be onsite at all times while work is in progress. A foreman will be required to conduct inspections of the work practices, and enclosure condition inside the work area at least three (3) times during each work shift.

E. All workers shall, at a minimum have successfully completed a four (4) day EPA-approved Asbestos Abatement Worker training course.

1.8 SUBMITTALS
A. Submit, as applicable, the following to the Client’s Representative for approval within 10 days of receiving the Notice to Proceed. These submittals are in addition to those required in Section 013300. These submittals shall be submitted in accordance with Section 013300.

1. Copies of the written notification to the following regulatory agencies:
a. SCAQMD Rule 1403
b. California Division of Occupational Safety and Health.

2. Copies of waste haulers Hazardous Waste Transporter Registration and Environmental Protection Agency Acknowledgment of Notification of Hazardous Waste Activity.

3. Identification of the landfill to be used for the disposal of the asbestoscontaining waste generated at the project site and the landfill disposal and packaging requirements.

4. A written asbestos abatement work plan identifying work sequence, abatement duration, dust control measures, work area preparation, personal protection equipment to be utilized, asbestos-containing TP-51
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 6 materials removal procedures, asbestos- containing/contaminated debris cleanup and disposal procedures, and waste handling, storage, and disposal procedures.

5. Manufacturer's certification that HEPA vacuums, differential pressure air filtration devices and other local exhaust ventilation equipment conform to ANSI Z9.2-79.

6. Manufacturer’s product data and material safety data sheet(s) for all chemical products to be used on the site.

7. Identification of the project’s Asbestos Related Demolition Supervisor/Competent Person who meets the requirements of 29 CFR Part 1926.1101 and 8 CCR Part 1529 and is experienced in administration and supervision of asbestos abatement projects, including work practices, protective measures for building and personnel, disposal procedures, etc.

8. Documentation that the Contractor’s employees performing asbestos removal, disposal, and air sampling operations have received training which meets the criteria of the Federal EPA Model Accreditation Plan (40 CFR Part 763, Subpart E, Appendix C).
a. Training certification shall be provided prior to the start of work involving asbestos abatement, for all of the Contractor’s workers, forepersons, and Asbestos-Related Demolition Supervisors / Competent Persons. Training shall meet the requirements of 29 CFR Part 1926.1101 and 8 CCR Part 1529 and the criteria of the Federal EPA Model Accreditation Plan (40 CFR Part 763, Subpart E, Appendix C). Training shall be provided prior to the time of job assignment and, at least, annually.

9. Documentation from a physician that employees or agents who may be exposed to airborne asbestos fibers in excess of the Permissible Exposure Limit have received medical monitoring to determine whether they are physically capable of working while wearing the respirator required without suffering adverse health effects. Contractor shall be aware of and provide information to the examining physician about unusual conditions in the workplace environment (e.g., high temperatures, humidity, and chemical contaminants) that may impact on the employee's ability to perform work activities. Medical monitoring shall be performed in accordance with the requirements of 29 CFR Part 1926.1101 and 8 CCR Part 1529.

10. Documentation of respirator fit-testing for Contractor employees and agents who must enter the work area. This fit-testing shall be in accordance with qualitative procedures as required by OSHA regulations or be quantitative in nature.

11. Documented NIOSH approvals for respiratory protective devices utilized on site, including manufacturer's certification of HEPA filtration capabilities for cartridges and filters.

B. Upon completion of all asbestos abatement activities, submit to the Client’s Representative, documentation that includes, without limitation, the following:

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 7

1. Work area entry/exit logbook. The logbook must record the name, affiliation, time in, and time out for each entry into the work site.

2. Material Safety Data Sheets (MSDS) for solvents, encapsulants, wetting agents and replacement materials, as necessary.

3. OSHA required personal air monitoring results.

4. Accident/incident reports where injury or damage has occurred on or to the Client’s property.

5. Hazardous waste manifests, non-hazardous waste data forms, trip tickets and disposal receipts for asbestos waste materials removed from the work area within 24 hours of the transport. Send to:

Kevin Kwak, P.E. Principal Civil Engineer
City of Gardena Public Works
1717 West 162nd Street Gardena, CA 90247
Phone 310.217.9643
[email protected]

1.9 NOTICES AND POSTINGS
A. Post in the decontamination unit, a list containing the names, addresses, and telephone numbers of the Contractor, Client’s Representative, Project Environmental Manager, and emergency contact numbers.

B. Additional postings shall include:

1. Visitor entry and exit log.

2. Employee daily sign in/out log.

3. Work area entry and exit procedures.

4. Emergency procedures.

C. One copy of the Cal-OSHA Regulations
D. Posted Warnings and Notices: The following regulations, warnings, and notices shall be posted at the work site in accordance with 29 CFR Part 1926.1101 and 8 CCR Part 1529.

1. Warning Signs and Labels: Warning signs shall be provided at building entrances and approaches to asbestos abatement areas. Signs shall be located at a sufficient distance from the asbestos control areas that will allow personnel to read the sign and take the necessary protective actions required before entering the asbestos control area.

2. Post at least two (2) safety warning signs, in English and Spanish, which follow the “Sample Format Warning Sign” shown below:

Sample Format Warning Sign
Minimum Size - 24” x 36”
TP-53
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ASBESTOS-RELATED DEMOLITION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 8 Material - Aluminum or Fiberglass
Script:

DANGER

ASBESTOS

CANCER AND LUNG DISEASE HAZARD

AUTHORIZED PERSONNEL ONLY

RESPIRATORS AND PROTECTIVE

CLOTHING AREA REQUIRED

IN THIS AREA
Color - Black Letters on Red Background

1.10 WORK AREA SECURITY
A. The asbestos work control area shall be restricted only to authorize personnel, including Contractor, Contractor's employees, Client’s Representative(s), and state, and local inspectors.

B. Entry into the asbestos work control area by unauthorized individuals shall be reported immediately to the Client’s Representative.

C. Contractor shall be responsible for Project site security during asbestosrelated demolition operations in order to protect work efforts and equipment.

1.11 WORK SEQUENCE
A. Work Sequence: The following is the work sequence for the project.

1. The Test Sections shall be the first work performed by the Contractor.

2. Following completion of the Test Sections, the Contractor shall perform removal of the asbestos-containing materials interior of the building.

3. Following completion of the materials on the interior of the building and clearance air sampling, the Contractor shall perform removal of the leadcontaining materials as identified in Section 02081.

4. Lead-related demolition may be performed in conjunction with asbestoscontaining roofing material removal as identified in Section 02080.

1.12 PERSONAL PROTECTION AND SAFETY
TP-54
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 9 A. The Contractor alone shall be responsible for the safety, efficiency, and adequacy of his/her appliances, methods, and for any damages which may result from his/her operations, improper construction practices, or maintenance.

He shall erect and properly maintain at all times as required by the conditions and progress of the work, proper safeguards for the protection of workmen and the public and shall post warning signs around the job site.

B. Respiratory protection requirements:

1. All respiratory protection programs shall be established in accordance with the respiratory protection requirements of 29 CFR Part 1910.134, 8 CCR Part 5144, 29 CFR Part 1910.1001, and 29 CFR Part 1926.1101.

Copies of these regulations are included herein by reference and shall be considered as a requirement of these Specifications.

2. All respirators used shall be selected from those approved by NIOSH for use in atmospheres containing asbestos fibers.

3. Work activities associated with the removal of asbestos-containing materials (i.e., ceiling tiles) shall be conducted in a minimum of Powered-Air Purifying Respirator (PAPR) respirators with P-100 filters.

C. Provide workers and authorized visitors with sufficient sets of protective full body impervious protective clothing. Such clothing shall consist of full body coveralls and headgear. Provide eye protection and hard hats as required by applicable safety regulations. Reusable type protective clothing and footwear shall be left in the equipment room until the end of the asbestos abatement work, at which time such items shall be disposed of as asbestos waste, or shall be thoroughly cleaned of all asbestos or asbestos-containing material.

Disposable type protective clothing, headgear, and footwear may be provided.

D. Provide and post, in the equipment room and the clean room, the decontamination and work procedures to be followed by workers and authorized visitors as described in these Specifications.

E. Worker Protection Procedures:

1. Each worker and authorized visitor shall, upon entering the job site remove street clothes in the clean room and put on a respirator and clean protective clothing before entering the equipment room or the work area.

2. All workers and authorized visitors shall, each time they leave the work area; remove gross contamination from clothing before leaving the work area; proceed to the equipment room and remove all clothing except respirators; still wearing the respirator proceed to the showers, clean the outside of the respirator with soap and water while showering; remove the respirator; thoroughly shampoo and wash themselves.

3. Following showering and drying off, each worker and authorized visitor shall proceed directly to the clean room and dress in clean clothes at the end of each day’s work, or before eating, smoking, or drinking. Before reentering the work area from the clean room each worker and authorized TP-55
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 10 visitor shall put on a clean respirator and shall dress in clean protective clothing.

4. Contaminated work footwear shall be stored in the equipment room when not in use in the work area. Upon completion of asbestos abatement, the footwear will either be disposed of as contaminated waste, or will be bagged and sealed for use at another abatement project.

5. Workers removing waste containers from the equipment decontamination enclosure shall enter the holding area from outside wearing a respirator and dressed in clean disposable coveralls. No worker shall use this system as a means to leave or enter the washroom or the work area.

6. Workers shall not eat, drink, smoke, or chew gum or tobacco while in the work area.

7. Workers shall be fully protected with respirators and protective clothing from the time of first disturbance of asbestos-containing or contaminated materials prior to commencing actual asbestos abatement and until final cleanup is completed.

F. If evacuation of the work area is required by contaminated personnel due to an emergency, all work efforts shall stop, and all forces shall be directed at minimizing the area contamination, cleanup operations, and first-aid procedures.

These activities shall be noted in the daily logbook.

G. During work activities requiring decontamination procedures, the Contractor shall provide a means of communication for the workers inside the work area without requiring personnel to enter or leave the work area. The method of communication shall be a two-way radio, localized wire-connected telephone, or similar system. This communication system shall remain intact until the final isolation plastic is removed. Then all equipment shall be wiped down; HEPA vacuumed or disposed of as asbestos-contaminated material.

H. Adequate shower facilities shall be provided by the Contractor. An employee leaving the work area shall follow all decontamination procedures necessary or as described herein.

PART 2 - PRODUCTS

2.1 MATERIALS
A. Handling and Storage:

1. Deliver all materials to the project in the original package(s), container(s), or bundle(s) bearing the name of the manufacturer, brand name and the model number.

2. Store all materials subject to damage off the ground, away from wet or damp surfaces, and under cover sufficient to prevent damage or contamination.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 11

3. Damaged or deteriorating materials shall not be used and shall be removed from the premises. Material that becomes contaminated with asbestos shall be disposed of in accordance with the applicable regulations.

B. Plastic (Polyethylene) Sheeting: Provide 6-mil thickness or greater polyethylene sheeting as specified in sizes to minimize the frequency of joints. Fire retardant polyethylene sheeting is required.

C. Tape: Provide two inch or wider duct tape capable of sealing joints of adjacent sheets of polyethylene and for attachment of polyethylene sheets to finished or unfinished surfaces of dissimilar materials. Duct tape shall be capable of adhering under both dry and wet conditions, including use of amended water.

D. Spray Cement: Provide aerosol- based spray cement specifically formulated to stick tenaciously to sheet polyethylene.

E. Surfactant: Provide a 50 percent polyoxyethylene ether and 50 percent polyoxyethylene ester, or equivalent and mix with water to provide a concentration of one ounce surfactant to 5 gallons of water.

F. Impermeable Containers: Provide impermeable containers suitable to receive and retain any asbestos-containing or contaminated materials until disposal at Disposal Site labeled in accordance with OSHA Regulation 29 CFR 1910.1101, DOT 49 CFR 171-177, Title 8 CCR and SBACPD. Containers must be both air and watertight and must be resistant to damage and rupture. Plastic bags shall be a minimum of 6-mil thick.

G. Warning Labels and Signs: Provide warning labels and signs as required by OSHA Regulation 29 CFR Part 1910.1101, Title 8 CCR Part 1529 and SBAPCD Rule 1001.

H. Other Materials: Provide all other materials, such as lumber, nails and hardware, which may be required to construct and dismantle the decontamination area and the barriers that isolate the work area.

I. Solvents used for the removal of resilient flooring mastics shall be low-odor.

2.2 TOOLS AND EQUIPMENT
A. Provide all tools and equipment necessary to perform the required asbestos removal/abatement.

B. Air Filtration Equipment: High Efficiency Particulate Air (HEPA) filtration systems shall be equipped with filtration equipment in compliance with ANSI Z9-2-79, local exhaust ventilation. No air movement system or air filtering equipment shall discharge unfiltered air outside the work area. A pressure differential TP-57
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 12 system shall be established in the work area continuously (24 hours per day) from the start of the work in the area until the area has been decontaminated and certified as such by the required testing. The system shall produce a minimum of four filtered air changes per hour in the work area and maintains a pressure differential of 0.020-inches water gauge between the inside and outside of the work area. All filtered, exhausted air shall be discharged outside the building away from any building air- intake devices (unless stated otherwise).

C. Manometer: A continuous recording monitor shall measure and record the difference in air pressure between that inside the work area from that outside the work area. The recording system shall be accurate to the nearest 0.001 inches of water pressure differential and be equipped with an alarm that sounds if the difference becomes less than 0.020-inches water gauge.

PART 3 - EXECUTION

3.1 ASBESTOS REMOVAL PREPARATION PROCEDURES
A. General Work Area Preparation: Contractor shall perform the following general work area preparation procedures prior to commencement of any abatement activities:

1. Danger signs meeting the specifications of 29 CFR Part 1926.1101 and 8 CCR 1529 shall be posted at any location and approaches to locations where airborne concentrations of asbestos may exceed ambient background levels. Signs shall be posted at a distance sufficiently far enough away from the work area to permit an employee to read the sign and take the necessary protective measures to reduce or avoid exposure.

Additional signs may need to be posted following construction of workplace enclosure barriers. The signs shall be in accordance with Article

1.09.D.2 of this Section.

2. Asbestos handlers shall don personnel protective equipment as required in Article 2.02 of this Section.

3. Contractor shall shut down and lock out electric power to work areas, where necessary, to provide a safe work environment. Contractor shall provide temporary power source and equipment, including ground faulting, in compliance with all applicable electrical code requirements and Cal-OSHA requirements for temporary electrical systems. The Contractor shall utilize a licensed electrician to perform all electrical power shut down and temporary power installation. All electrical equipment used during the removal of asbestos-containing materials shall be connected to a Ground Fault Interrupted (GFI) circuit.

4. Heating, ventilation, and air-conditioning (HVAC) system components that supply return, or that passes through the work area shall be shut down and locked out.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 13

5. The Contractor shall isolate the asbestos removal work areas from other occupied areas of the building. Windows, doorways, corridor entrances, drains, ducts, grilles, grates, diffusers, and any other opening between the work area and areas outside of the work area (including the outside of the building, tunnels, and crawl spaces) shall be critically sealed with two layers of 6-mil polyethylene sheeting and duct tape.

6. Emergency and fire exits from the work areas shall be maintained and adequately marked. Alternative exits shall be established that are satisfactory to the Consultant and local fire regulations.

7. Contractor shall construct and maintain at least one three-stage decontamination unit. This decontamination unit shall be constructed in accordance with the requirements set forth in Article 3.02 of this Section.

The asbestos worker wash/decontamination station may be used as the lead worker wash/decontamination station.

B. Stucco Procedures:

1. Two layers of 6-mil plastic sheeting on the floors.

2. Install worker decontamination unit described in Article 3.02 or as agreed upon with the Project Environmental Manager.

3. Asbestos-containing material shall be sprayed with amended water using spray equipment capable of providing a low-pressure application.

4. Wetted material shall be manually demolished using hand equipment.

5. Cleanup shall proceed in accordance with Article 3.08 - Cleanup Procedures.

C. Ceiling Tile Procedures:

1. Two layers of 6-mil plastic sheeting on the walls and floors.

2. Install worker decontamination unit described in Article 3.02 or as agreed upon with the Project Environmental Manager.

3. A pressure differential system shall be established that produces a minimum of four filtered air changes per hour in the work area and maintains a pressure differential of 0.02-inch water gauge between the inside and outside of the work area. The pressure differential system shall not be exhausted into occupied areas of the building.

4. Asbestos-containing material shall be sprayed with amended water using spray equipment capable of providing a low-pressure application.

5. Wetted material shall be manually demolished using hand equipment.

6. Cleanup shall proceed in accordance with Article 3.08 - Cleanup Procedures.

D. Pipe Elbow/Fitting Insulation

1. Floors and walls shall be covered with two layer of 6-mil polyethylene sheeting.

2. The area around where pipe fitting insulation will be removed using glove bags shall be isolated with a full containment or mini-enclosure. The walls TP-59
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 14 or the full containment or the walls of the mini-enclosure shall be constructed with one layer of 6-mil polyethylene sheeting.

3. Install worker decontamination unit described in Article 3.02 or as agreed upon with the Project Environmental Manager.

4. A pressure differential system shall be established that produces a minimum of four filtered air changes per hour in the work area and maintains a pressure differential of 0.02-inch water gauge between the inside and outside of the work area. The pressure differential system shall not be exhausted into occupied areas of the building.

5. Glove bags shall be installed in accordance with the procedures outlined in 29 CFR 1926.1101.

3.2 WORKER DECONTAMINATION ENCLOSURE SYSTEMS
A. At least one worker decontamination enclosure system shall be provided on the site that is easily accessible from each of the asbestos removal work areas.

The asbestos worker decontamination enclosure system may also be used for the lead worker decontamination system.

B. Worker decontamination enclosure systems constructed at the worksite shall utilize 6-mil opaque black or white polyethylene sheeting or other acceptable materials for privacy.

C. The worker decontamination enclosure system shall consist of at least a clean room, a wash station, and an equipment room, each separated from the other by curtained doorways.

D. Entry to and exit from all decontamination enclosure system chambers shall be through curtained doorways consisting of two sheets of overlapping polyethylene sheeting. One sheet shall be secured at the top and left side, the other sheet at the top and right side. Both sheets shall have weights attached to the bottom to ensure that they hang straight and maintain a seal over the doorway when not in use. Doorway designs, providing equivalent protection and acceptable to the Consultant, may be utilized.

E. Pathways into (from clean to contaminated) and out of (contaminated to clean) the work area shall be clearly designated.

F. The clean room shall be sized to adequately accommodate the work crew. The clean room shall also provide shelves for storing respirators and a location for posting notices.

G. The wash station shall have water and soap for washing away asbestos contamination. The wash station shall have a drain pan to collect wastewater.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 15 H. The equipment room shall be used to disrobe for washing at the wash station. A drum lined with a labeled 6-mil polyethylene bag for collection of disposable clothing shall be located in this room.

3.3 EMERGENCY EXITS
A. Emergency exits shall be established and clearly marked with duct tape arrows or other effective designations to permit easy identification and location by the workers from anywhere within the work area. Emergency exits shall be secured to prevent access from uncontaminated areas and still permit emergency exiting. Emergency exits shall be properly sealed with 6-mil polyethylene sheeting that can be cut to permit egress, if needed. These exits may be the worker decontamination enclosure, the waste pass-out airlock, and/or other alternative exits satisfactory and in compliance with local fire regulations. Where emergency exits are sealed, an instrument capable of cutting the polyethylene barrier shall be installed on both sides of the barrier, to allow for immediate exit from the work area in the event of an emergency.

3.4 MAINTENANCE OF WORKPLACE BARRIERS
A. Following completion of the construction of polyethylene barriers and decontamination system enclosures, adequate settling time shall be required to ensure that barriers will remain intact and secured to walls and fixtures before beginning actual abatement activities.

B. Workplace barriers shall be visually inspected at the beginning of each work period or shift by the Supervisor/Competent Person.

C. Damage and defects in the enclosure system shall be repaired immediately upon discovery. This information shall also be noted in the Contractor’s daily log.

D. At any time during the abatement activities after barriers have been erected, if visible material is observed outside of the work area or if damage occurs to barriers, work shall immediately stop, repairs made to barriers, and debris/residue cleaned up using appropriate HEPA- vacuuming and wetmopping procedures. This information shall also be noted in the Contractor’s daily log.

3.5 COMMENCEMENT OF WORK SHALL NOT OCCUR UNTIL
A. Enclosure systems have been constructed and tested.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 16 B. At least one three-stage decontamination unit with wash station is operational.

This decontamination unit can be the same as the lead-related demolition decontamination unit.

C. Pressure differential systems are functioning adequately.

D. Pre-abatement submissions, notifications, and permits have been provided and are satisfactory to the Client’s Representative.

E. Equipment for abatement, cleanup, and disposal are available.

F. Worker training, medical examination, and respirator fit testing (and certification) is completed or applicable, current documentation of this information is provided. This information shall also be provided for new workers on the first day they arrive at the work site.

G. Glove bags have been smoke tested.

H. Contractor receives permission from the Consultant to commence asbestosrelated demolition work.

3.6 WORKPLACE ENTRY AND EXIT PROCEDURES
A. General: The following procedures shall be followed prior to entrance into any regulated asbestos work area:

1. Personnel who enter the work area shall sign the entry log upon entry and exit.

2. Personnel, before entering the work area, shall read and be familiar with posted regulations, personal protection requirements (including workplace entry and exit procedures), and emergency procedures.

3. Personnel shall wear appropriate respiratory protection and disposable coveralls, head covering, and foot covering. Hardhats, eye protection, and gloves shall also be utilized, as required. Clean respirator filter cartridges and protective clothing shall be provided and utilized by each person for each separate entry into the work area.

4. Personnel wearing designated personal protective equipment shall proceed to the work area.

5. To exit the work area, personnel shall proceed to the equipment room where they shall remove protective equipment, except respirators, and deposit disposable clothing into appropriately labeled containers for disposal.

6. Clothing or footwear worn into a regulated work area will not be permitted out of the regulated work area.

7. Reusable, contaminated footwear shall be stored in the equipment room when not in use in the work area. Upon completion of abatement, it shall TP-62
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 17 be disposed of as asbestos- contaminated waste. (Rubber boots may be decontaminated at the completion of the abatement for reuse).

B. Ceiling Tile and Glove Bag Removal Work Area Entry and Exit Procedures:

1. Asbestos handlers involved in ceiling tile and glove bag removal procedures shall wear two disposable suits appropriate for the work, including gloves, hood and footwear, and appropriate respiratory protective equipment. Hard hats, eye protection, and gloves shall also be utilized as required. Clean respirators and protective clothing shall be provided and utilized by each person for each separate entry into the work area.

2. The double layer personal protective equipment shall be used throughout the procedure if a decontamination unit with a shower room is not contiguous to the work area. Upon exiting the work area and entering the change room, the worker shall HEPA vacuum and wet clean the outer suit and dispose of it as asbestos-contaminated waste. Workers shall then proceed to an operational three-stage decontamination unit to remove and dispose of the second suit, shower, and change into street clothes.

3.7 ASBESTOS-CONTAINING MATERIAL REMOVAL PROCEDURES
A. General

1. Work area shall be cleaned and isolated in accordance with the procedures set forth in Article 3.01 of this Section.

2. Waste containers for floor tile and mastic and roofing material shall be sealed when full. Bags shall not be overfilled. Bags shall be securely sealed to prevent accidental opening and leakage by tying the tops of bags in an overhand knot or by taping in gooseneck fashion. Bags shall not be sealed with wire or cord.

B. Stucco Removal Procedures:

1. Asbestos-containing stucco shall be sprayed with amended water, using spray equipment capable of providing a low-pressure application.

2. Wetted asbestos-containing stucco shall be removed using methods to minimize the breakup of the material such as manual scrapers. The stucco shall not be rendered friable during the removal. Waste materials shall immediately be packed in 6-mil, properly labeled, plastic bags as it is removed. Material shall not be allowed to drop to the floor. The waste bags shall then be placed in labeled containers for transport. Material shall not be allowed to dry out prior to insertion into the container.

3. In lieu of removing the stucco substrate, the stucco assembly may be removed with the stucco still adhered. The stucco waste shall immediately be placed into 6-mil plastic bags.

4. Cleanup shall proceed in accordance with Article 3.08 - Cleanup Procedures.

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5. After the work area surfaces have been rendered free of visible residues, a thin coat of an approved encapsulating agent shall be applied to seal in nonvisible residue.

6. Dispose of all asbestos containing/contaminated waste in accordance with Article 3.10 - Disposal Procedures.

C. Ceiling Tile Removal Procedures:

1. Asbestos-containing ceiling tile mastic shall be sprayed with amended water, using spray equipment capable of providing a low-pressure application.

2. Wetted asbestos-containing ceiling tile mastic shall be removed using methods to minimize the breakup of the material such as manual scrapers. The ceiling tile mastic shall not be rendered friable during the removal. Waste materials shall immediately be packed in 6-mil, properly labeled, plastic bags as it is removed. Material shall not be allowed to drop to the floor. The waste bags shall then be placed in labeled containers for transport. Material shall not be allowed to dry out prior to insertion into the container.

3. In lieu of removing the ceiling tile mastic from the ceiling substrate, the ceiling assembly may be removed with the ceiling tile mastic still adhered.

The ceiling waste shall immediately be placed into 6-mil plastic bags.

4. Cleanup shall proceed in accordance with Article 3.08 - Cleanup Procedures.

5. After the work area surfaces have been rendered free of visible residues, a thin coat of an approved encapsulating agent shall be applied to seal in nonvisible residue.

6. Dispose of all asbestos containing/contaminated waste in accordance with Article 3.10 - Disposal Procedures.

D. Pipe Insulation, Duct Vibrator Reducer, & Vent Caulk Removal Procedures:

1. Glove bags shall be installed so that they completely cover the piping and other structures where asbestos work is to be done. Glove bags shall be installed by cutting the sides of the glove bag to fit the size of pipe or opening from which asbestos is to be removed. The glove bag is attached to the pipe by folding the open edges together and securely sealing them with tape. All openings in the glove bag must be sealed with duct tape or equivalent material. The bottom seam of the glove bag must also be sealed with duct tape or equivalent to prevent any leakage from the bag that may result from a defect in the bottom seam.

2. Asbestos-containing pipe insulation shall be thoroughly wet with amended water.

3. Asbestos-containing pipe insulation contained within the glove bag shall be removed manually, utilizing appropriate hand tools.

4. The removed asbestos waste and other structures that have fallen into the enclosed bag must be maintained in a wet state.

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5. After removal of the asbestos-containing pipe insulation, the piping and other structures from which the asbestos has been removed must be thoroughly cleaned with a polyethylene brush and wet wiped until no traces of asbestos debris can be seen. Non- asbestos insulation, if present, must be cut back a minimum of three inches from where it comes into contact with any asbestos-containing material.

6. When the asbestos removal and encapsulation have been completed, a vacuum hose from a HEPA-filtered vacuum must be inserted into the glove bag through the appropriate port to remove any air in the bag that may contain asbestos fibers. When the air has been removed from the bag, the bag should be squeezed tightly (as close to the top as possible), twisted, and sealed with duct tape in order to keep the asbestos-containing materials safely in the bottom of the bag. The HEPA vacuum can then be removed from the bag, and the glove bag itself can be removed from the work area to be disposed of properly.

7. After the work area surfaces have been rendered free of visible residues, a thin coat of a satisfactory encapsulating agent shall be applied to seal in nonvisible residue.

8. Cleanup shall proceed in accordance with Article 3.08 - Cleanup Procedures.

9. Dispose of all asbestos containing/contaminated pipe fitting waste as hazardous waste in accordance with Article 3.10 - Disposal Procedures.

3.8 CLEANUP PROCEDURES
A. General

1. Visible accumulations of ACM and asbestos-contaminated debris shall be removed and containerized utilizing nonmetallic tools (squeegees, shovels, and the like). Surfaces in the work area shall then be wet cleaned.

Equipment used in the work area shall be included in the cleanup, and shall be removed from work areas via the decontamination enclosure system or waste load-out, at appropriate times in the cleaning sequence.

2. None of the procedures described in this Article relieve the Contractor of the responsibility to meet the final clearance criteria as established by this Section.

B. Stucco Removal Cleanup Procedures:

1. The work area and other contaminated areas shall be cleaned utilizing HEPA-filtered vacuum equipment and wet-wiping techniques. After completion of the cleaning operation, a complete visual inspection of the work shall be conducted with the Consultant to ensure that the work area is free of visible asbestos debris. A final check shall be made for asbestos debris, and further cleaning will be conducted as necessary. The Consultant shall be notified 24 hours in advance of the requirement for a visual inspection.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8200 - 20 C. Ceiling Tile Removal Cleanup Procedures:

1. The windows, doors, and HVAC vents shall remain sealed, and any HEPA-filtered pressure differential systems, waste load-out, and decontamination enclosure systems shall remain in service.

2. The work area and other contaminated areas shall be cleaned utilizing HEPA-filtered vacuum equipment and wet-wiping techniques. After completion of the cleaning operation, a complete visual inspection of the work shall be conducted with the Consultant to ensure that the work area is free of visible asbestos debris. A final check shall be made for asbestos debris, and further cleaning will be conducted as necessary. The Consultant shall be notified 24 hours in advance of the requirement for a visual inspection.

3. Upon completion of the cleaning operation, Contractor shall notify the Consultant that the negative pressure enclosure work areas are ready for review and clearance air monitoring. The negative pressure enclosure areas shall be cleaned until they pass the Clearance Air Monitoring Standard. The Consultant will require up to one 8-hour shift to complete clearance air monitoring following successful completion of the visual inspection.

4. Upon notification from the Consultant that the negative pressure enclosure work area has passed the standard for clearance air monitoring, the Contractor shall remove remaining polyethylene sheeting, isolation and/or critical barriers, decontamination unit, dismantle negative air pressure devices, and remove asbestos warning signs/ribbon.

D. Pipe Insulation, Duct Vibrator Reducer, & Vent Caulk Removal Clean Up Procedures:

1. All critical barriers shall remain sealed, and any HEPA-filtered pressure differential systems, waste load-out, and decontamination enclosure systems shall remain in service.

2. The work area and other contaminated areas shall be cleaned utilizing HEPA-filtered vacuum equipment and wet-wiping techniques. After completion of the cleaning operation, a complete visual inspection of the work shall be conducted with the Consultant to ensure that the work area is free of visible asbestos debris. A final check shall be made for asbestos debris, and further cleaning will be conducted as necessary. The Consultant shall be notified 24 hours in advance of the requirement for a visual inspection.

3.9 CLEARANCE AIR MONITORING
A. The following clearance air monitoring procedures will be used in negative pressure enclosure work areas.

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1. After completion of cleanup operations, Contractor shall notify the Consultant that the work areas are ready for clearance air monitoring.

Notification shall be a minimum of 24 hours prior to the need for clearance air monitoring. Final clearance air monitoring shall be conducted only after the procedures set forth in Article 3.08 of this Section have been completed, the area has been satisfactorily cleaned and encapsulated, and the abatement area has been thoroughly dried.

2. The Consultant shall conduct the final clearance air monitoring by collecting and analyzing a minimum of two air samples per work area utilizing the methods set forth in NIOSH Method 7400. Clearance air monitoring may require up to one work shift to complete. The Consultant, at its discretion, may perform aggressive clearance air monitoring including blowing the area with a leaf blower and running fans while the air sampling pumps are running.

3. Clearance of a work area shall be achieved when each sample taken within the contained work area indicates airborne fiber concentrations of less than 0.01 fibers per cubic centimeter, as determined by phase contrast microscopy.

4. Abatement areas not achieving clearance shall be recleaned using procedures set forth in Article 3.08 of this Section, and retested until clearance is achieved. The cost of additional samples, consultant air monitoring fees, and labor for re-cleaning the work areas that fail final air clearances shall be paid for by the Contractor.

3.10 DISPOSAL PROCEDURES – HAZARDOUS WASTE
A. As the work progresses, to prevent exceeding available storage capacity on site, sealed and labeled containers of asbestos-containing waste shall be removed and transported to the prearranged disposal location.

B. Unless other arrangements are made satisfactory to the Consultant, bagged or wrapped material shall be removed from the work areas and placed in a Contractor-supplied dumpster a minimum of every day. The dumpster shall be marked with asbestos warning signs and be locked at all times when not in use.

When a dumpster is full, it shall be removed from consultant property by the end of the next business day.

C. Disposal shall occur at an authorized site, in accordance with regulatory requirements of NESHAPs and applicable state and local guidelines and regulations, including the California State Department of Health Services, Toxic Substances Control Division.

D. Uniform hazardous waste manifests, dump receipts; trip tickets, transportation manifests, or other documentation of disposal shall be delivered to the Consultant Representative for their records.

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3.11 OSHA PERSONNEL AIR MONITORING
A. Air monitoring required by OSHA for asbestos exposure determination is work of the contractor. The contractor is responsible for providing daily OSHA compliance monitoring as per 8 CCR 1529 and 29 CFR 1926.1101.

1. At minimum, Contractor shall conduct representative (25% of crew) breathing zone personal air monitoring of its employees twice each shift and repeated daily.

2. Monitoring shall be conducted by a qualified air professional experienced and knowledgeable about the methods of air monitoring and in accordance with 8 CCR 1529 and CFR 1926.1101.

3. Monitoring results and appropriate laboratory analysis work shall be submitted to the Consultant within twenty-four (24) hours of the monitoring work.

3.12 ALTERNATE PROCEDURES
A. The procedures described in this Section shall be utilized at all times.

B. If specified procedures cannot be utilized, a request shall be made in writing to the Consultant providing details of the problem encountered and proposed alternatives.

C. Alternative procedures shall provide equivalent or greater protection than the procedures that they replace.

D. Alternative procedure shall be approved in writing by the Consultant prior to implementation.

END OF SECTION
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LEAD ABATEMENT AND LEAD RELATED CONSTRUCTION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 1 PART 1 – GENERAL

1.1 SUMMARY
A. Section Includes:

1. Abatement, Lead Related Construction.

2. Transportation and disposal of lead-containing materials and/or Lead Based Paint.

B. Related Requirements:

1. Division 01 - General Requirements.

2. Cal Title 8, California Code of Regulations (CCR).

3. California Air Resources Board Ambient Air Quality Standard, Title 24 CCR.

4. California Department of Public Health, Title 17, CCR.

5. Cal/EPA, Title 22 CCR.

6. California Labor Code, Division 5, Part 1, as it pertains to safety in employment and with the applicable provisions of the Title 8, CCR as it pertains to Occupational Safety and Health in the work place.

7. Environmental Protection Agency, 40CFR, Part 745.

8. Los Angeles County Public Health Code (Chapter 11).

1.2 DEFINITIONS AND ACRONYMS
A. AAS - Atomic Absorption Spectrophotometry used for lead paint chip and dust wipe sample analysis.

B. Abatement – Any set of measures designed to reduce or eliminate lead hazards or Lead Based Paint for public and residential buildings, but does not include containment or cleaning.

C. Action Level – Means the Action Level as defined in Title 8, California Code of Regulations, Section 1532.1.

D. ANSI – American National Standards Institute.

E. ASTM – American Society for Testing and Materials.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 2 F. Building ID number or code (Maximo) – A six digit alphanumeric identification code assigned to each building on an Owner site, also referred to as the insurance code, ID number or similar terms.

G. Certificate – Means the document issued by CDPH to an individual meeting the certification requirements as described in CCR Title 17, Sections 35083, 35085, 35087, 35089, or 35091.

H. Clean Room – An uncontaminated area or room which is a part of the worker Decontamination Enclosure System with provisions for storage of worker's street clothes and clean protective equipment.

I. Clearance Inspection – Means visual examination and, as applicable, collection of environmental samples upon completion of the Work of this section.

J. Component – Means a structural element or fixture, including but not limited to, walls, floors, ceilings, doors, window molding, trim, trestles, tanks, stairs, railings, cabinets, gutters, or downspouts.

K. Curtained doorway – A device to allow ingress and egress from one room to another while permitting minimal air movement between the rooms, typically constructed by placing two overlapping sheets of plastic over an exiting or temporarily framed doorway, securing each along the top of the doorway, securing the vertical edge of one sheet along one vertical side of the doorway and securing the vertical edge of the other sheet along the opposite vertical side of the doorway. Other effective designs may be submitted for review.

L. Decontamination – The process of eliminating lead contamination from building surfaces, and property by cloths, mops, or other utensils dampened with water and disposed of as lead contaminated waste.

M. Decontamination Enclosure System – A minimum a two-stage Decontamination unit consisting of a compartment for Decontamination, and a Clean Room. Unless otherwise specified, it shall be adjacent to the Abatement area.

N. Demolition – The wrecking or taking out of any load supporting structural member of a facility together with any related handling operations.

O. Deteriorated Lead Based Paint – Means Lead Based Paint or a surface coating that is cracking, chalking, flaking, chipping, peeling, non-intact, failed, or otherwise separating from the substrate to which it is applied to.

P. CDPH– California Department of Public Health.

Q. CDPH-Approved Course – Means any lead construction course that satisfies the requirements specified in CCR Title 17, Sections 35056, 35061, 35066, or 35067 as determined by CDPH pursuant to Sections 35076 and 35078.

R. DOSH – California Division of Occupational Safety & Health or Cal/OSHA.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 3 S. DOT – Department of Transportation.

T. DTSC – California Department of Toxic Substances Control.

U. Encapsulating Material – Are coatings or rigid materials adhesively applied to Lead Based Painted surfaces in the Encapsulation process.

V. Encapsulation – The application of an Encapsulating Material to Lead Based Paint to provide a barrier between the Lead Based Paint and the environment.

W. Enclosure – A rigid durable barrier mechanically attached to building Component, with edges and seams sealed with caulk or other sealant.

X. EPA; Renovation, Repair and Painting (RRP) – Means a lead-related construction course that satisfies the requirements specified in 40 CFR, Part 745, Section 745.90.

Y. FETU – Facilities Environmental Technical Unit.

Z. Firm – Means a company, partnership, corporation, sole proprietorship or individual doing business, association, or other business entity; a Federal, State, Tribal, or local government agency; or a nonprofit organization and satisfies the requirements specified in 40 CFR, Part 745, Section 745.89.

AA. Fixed Object – A piece of equipment, furniture, or improvement in the Work Area, which cannot be removed from the Work Area.

BB. Hazardous Waste – Means any waste stream determined by an Owner approved laboratory to exceed the regulatory thresholds for lead hazardous waste.

CC. HEPA Filter – Means a filtering system capable of trapping and retaining at least 99.97 percent of mono-dispersed particles 0.3 micrometers in diameter or larger.

DD. HEPA Vacuum – A vacuum system furnished with HEPA filtration.

EE. HUD – United States Department of Housing and Urban Development FF. HVAC – Heating, Ventilation, and Air Conditioning system.

GG. ICP-AES – Means Inductively Coupled Plasma-Atomic Emission Spectroscopy used for heavy metal analysis, including lead.

HH. Lead Based Paint – Means paint or other surface coatings that contain an amount of lead equal to or greater than 0.7 milligrams per square centimeter (0.7 mg/cm2) or equal to or greater than 0.5 percent by weight.

II. Lead Containing Paint – Means paint or other surface coatings that contain lead in an amount equal to or greater than 0.06 percent lead dry weight (600 ppm) but does not meet the definition of Lead Based Paint. In the absence TP-71
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 4 of paint chip or surface coating bulk sample results, any surface coating shall be assumed to be above 0.06 percent lead dry weight (600 ppm) until surface coating samples are collected and analyzed that indicate otherwise.

Lead concentration shall be determined by a method that has an accuracy of not less than plus or minus 25 percent at 0.06 percent lead dry weight, to a confidence level of 95 percent.

JJ. Lead Contaminated Dust – Means dust that contains an amount of lead equal to, or greater than, forty micrograms per square foot (40 g/ft2) for interior floor surfaces; two hundred and fifty micrograms per square foot (250 g/ft2) for interior horizontal window surfaces; and eight hundred micrograms per square foot (800 g/ft2) for exterior floor and exterior horizontal window surfaces.

KK. Lead Contaminated Soil – Means bare soil that contains an amount of lead equal to, or greater than, four hundred parts per million (400ppm).

LL. Lead Hazard – Means deteriorated Lead Based Paint, Lead Contaminated Dust, Lead Contaminated Soil, the disturbance of Lead Based Paint or Presumed Lead Based Paint without containment, or any other operation that may result in persistent and quantifiable lead exposure.

MM. Lead Inspection – Means a surface by surface investigation to determine the presence of Lead Based Paint as described in Chapter 7: Lead Based Paint Inspection, “ Guidelines for the Evaluation and Control of Lead Based Paint Hazards in Housing,” U.S. Department of Housing and Urban Development, 1997 Revision.

NN. Lead Related Construction Work – Means any construction, alteration, painting, Demolition, salvage, Renovation, repair, or maintenance of any residential or public building, including preparation and cleanup that, by using or disturbing lead-containing material or soil, may result in significant exposure of adults or children to lead.

OO. Lead Safe Schools Program – Means the training program for lead safe working practices as developed by the Labor Occupational Health Program at U.C. Berkley.

PP. Location Code (Maximo) – Refers to a unique four digit numeric code assigned by the Owner to each of its Project sites.

QQ. Member – A Component part of a structure complete in itself.

RR. Movable Object – A piece of portable equipment or furniture in the Work Area, which can be removed from the Work Area.

SS. NESHAP – The National Emission Standards for Hazardous Air Pollutants (40 CFR Part 50.12).

TT. NIOSH – The National Institute for Occupational Safety and Health.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 5 UU. Owner Consultant (OC) – Refers to the firm, company or individual designated by the Owner.

VV. Painting Contract – For purposes of this section, a painting contract is a Contract with the Owner to perform painting on existing facilities where Lead Based Paint, Lead Containing Paint, Presumed Lead Based or Presumed Lead Containing Paint will be disturbed or abated.

WW. P.E.L. – Means permissible exposure limits as defined in Title 8, California Code of Regulations, Section 1532.1.

XX. Plasticize – To cover floors, walls, and equipment with plastic sheeting as specified herein.

YY. Portable Mechanical Ventilation System – A portable exhaust system furnished with HEPA filtration and capable of providing a constant air flow into regulated Work Area from adjacent areas and exhausted outside the regulated area.

ZZ. Presumed Lead Based Paint – Means paint or surface coating affixed to a Component in or on a structure, excluding paint or surface coating affixed to a Component in or on a residential dwelling constructed on or after January 1, 1979, or a school constructed on or after January 1, 1993.

AAA. Removal – Means operations where Lead Based Paint is removed or stripped from structures or substrates including Demolition.

BBB. Renovation – Means the modifying of any existing structure, facility, or portion thereof.

CCC. Replacement – Means Removal of an entire building Component coated with Lead Based Paint and replacing it with a lead free Component.

DDD. SCAQMD – South Coast Air Quality Management District.

EEE. STLC – Means Soluble Threshold Limit Concentration used in the State of California in conjunction with TTLC to determine lead hazardous waste limits.

If the STLC result is equal to or exceeds 5 mg/L the waste is deemed to be hazardous.

FFF. Surfactant - A chemical wetting agent added to water.

GGG. TCLP – Means Toxicity Characteristic Leaching Procedure used to determine the federal Resources Conservation Recovery Act (RCRA) lead hazardous waste limits. If the results equal or exceed 5 mg/L the waste is deemed to be hazardous.

HHH. TTLC – Means Total Threshold Limit Concentration used in the State of California in conjunction with STLC to determine lead hazardous waste limits.

If the results are equal to or exceeds 1000 mg/kg, the waste is deemed to be hazardous.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 6 III. Visible Emissions – Any emissions from a known or suspected leadcontaining material that is visually discernible.

JJJ. Wet Cleaning – The process of eliminating lead contamination from building surfaces and/or objects by cloths, mops, or other utensils dampened with amended water and afterwards being disposed of as hazardous waste.

KKK. Work Area – Means an area where known or Presumed Lead Based Paint is disturbed or Abatement is conducted.

LLL. X-Ray Fluorescense (XRF) Analyzer – Means a direct reading instrument that determines the lead content of the surface coatings in milligrams per square centimeter (mg/cm2) using the principle of x-ray fluorescence.

1.3 POLICIES AND PROCEDURES
A. The Owner has a zero-tolerance policy for uncontrolled lead releases during Lead Related Construction Work, Lead Containing Paint disturbance, or Abatement activities. A lead release requiring an emergency response is any disturbance resulting in the uncontrolled release of lead containing materials.

Upon observation of any visual emissions, immediately stop the Work, vacate the Work Area, and provide written notification to the Owner Consultant.

B. Pre-qualified Abatement Subcontractors are not permitted to subcontract any Abatement Work to a lower tier Subcontractor without the prior written approval of the Owner.

C. Do not furnish a reduced pressurization and filtration system in violation of, or in infringement upon, any patent.

D. Owner Consultant shall provide oversight for Projects that have the potential to disturb lead containing or Lead Based Paint. Prior to the commencement of such Work, provide written notification to the Owner Consultant.

E. The following paragraph regarding impacts to coated surfaces shall be part of the contract:

1. “Renovation, repair or painting work performed on buildings constructed prior to 1978 require special handling and
environmental monitoring when coated surfaces including, but not limited to, painted, varnished, and glazed surfaces are impacted.

Coated surfaces applied prior to 1978 are assumed to be leadbased. All work shall be performed in compliance with Specification, Section 02 8333, “Lead Abatement and Lead Related Construction Work.” XRF testing methodology is not acceptable in determining negative for lead content for Cal/OSHA compliance purposes, except for notification requirements. XRF may be used in determining lead-based paint for compliance with the U.S.E.P.A.

Renovator, Repair, and Painting Rule. Disturbance of coated surfaces by contractors will be monitored by qualified District staff or Environmental Consultant sufficient to ensure that proper training and work procedures, cleanup, and waste handling are employed.” TP-74
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1.04 COORDINATION
A. Coordinate the Work of this section directly with the Owner and/or Owner Consultant.

1.05 SITE SECURITY
A. The Work Area is restricted to authorized, trained, and protected personnel.

A list of authorized personnel shall be established and posted at the entrance of the Work Area by the Owner Consultant prior to commencement of the Work.

B. Report to the Owner Consultant any unauthorized entry into the Work Area.

Following notification, a written report of the incident shall be provided to the Owner Consultant.

C. A logbook shall be maintained at the entrance of the Work Area. Persons entering the Work Area shall record name, company affiliation, time in, and time out for each entry and exit.

D. Access to the Abatement Work Area shall be through the Decontamination Enclosure System only. Other means of access shall be blocked or locked so as to prevent entry to or exit from the Work Area. Emergency exits shall be operable from inside the Work Area.

E. Maintain Work Area security during Abatement and/or Lead Related Construction Work. Work Areas and ancillary equipment accessible to nonauthorized personnel shall be protected from unauthorized access by constructing a minimum barrier of 3/8 inch CDX plywood supported by 2 by 4 studs, 16 inches on center. An access door shall be provided with hasp and padlock sufficient to prevent unauthorized entry. A key shall be provided to the Owner and Owner Consultant. Required barriers within an occupied building shall be furnished with sheathing as required by state and local fire protection regulations.

F. Remove barriers upon the completion of the Work of this section and unless otherwise specified, repair and/or replace to its original condition, damage resulting from installation, use, and removal of the barriers.

1.06 EMERGENCY PLANNING
A. Emergency planning and procedures shall be developed, submitted, reviewed, and agreed to by the Owner Consultant prior to the commencement of lead-related construction and/or Abatement Work.

B. Emergency procedures shall be provided in the written languages understood by employees working on the Project and shall be prominently posted at the entrance of the Decontamination Enclosure System. Prior to entering the Work Area, parties must read and sign these procedures to acknowledge receipt and understanding of the Work Area layout, location of emergency exits, and emergency procedures.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 8 C. Emergency planning shall consider the effects of fire, explosion, toxic atmospheres, electrical hazards, slips, trips and falls, confined spaces, and heat related injury. Develop and provide written procedures and training to employees.

D. Employees shall be trained in evacuation procedures in the event of workplace emergencies.

E. In the event of non-life threatening situations requiring medical treatment, injured or otherwise incapacitated employees shall decontaminate following normal procedures with assistance from fellow workers if necessary, before exiting the Work Area.

F. In the event of life threatening injury or illness requiring immediate medical treatment, worker Decontamination shall be given minimum priority. Provide measures to stabilize the injured worker remove them from the Work Area and secure proper medical treatment.

G. Telephone numbers of emergency response personnel shall be prominently posted at the entrance of the Decontamination Enclosure System along with the location of the nearest telephone. In addition to the 911 emergency number, post the address and telephone number of the nearest emergency medical services provider.

H. Provide at least one employee on the Project site at times during progress of the Work that is trained and certified in first aid and cardiopulmonary resuscitation (CPR). This employee shall be identified by name and proof of training shall be provided to the Owner Consultant prior to the commencement of the Work of this section.

I. Provide at least one 4A/60BC dry chemical extinguisher in the Decontamination compartment. Workers shall be trained in the proper operation of fire extinguishers.

J. Emergency exits shall be provided and clearly marked with arrows or other clearly visible markings to permit easy identification from anywhere within the Work Area. Exits shall be secured to prevent access from uncontaminated areas while still permitting emergency egress. Exits shall be properly sealed with polyethylene sheeting, which can be cut to permit emergency egress.

Emergency exits may lead through the Decontamination Enclosure System or other alternative exits as required by fire officials.

1.07 LICENSING
A. The Work of this section shall be performed by an entity duly licensed in the State of California in accordance with the provisions of Chapter 9 of Division 3 of the Business and Professions Code, as amended.

1.08 QUALIFICATIONS
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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 9 A. Only safety pre-qualified bidders on the pre-approved bidders list are qualified to be awarded an Abatement Contract or Painting Contract be listed as a Subcontractor for lead Abatement Work or Painting Contract.

B. Where the scope of the Work includes the painting and/or refinishing of existing surfaces, only safety pre-qualified bidders on the pre-approved bidders list are qualified to be awarded a painting Contract or be listed as a Subcontractor for painting Work.

C. Before any workers perform Abatement Work or Work of this section where the P.E.L. is exceeded, submit proof of CDPH training and certification. No Work shall be performed until the Owner Consultant has reviewed and approved CDPH training and certifications.

D. Workers shall be in personal possession of a wallet CDPH certification card at times while they are performing Abatement Work on the Project site.

E. Workers performing lead Abatement, Lead Related Construction Work, or disturbance of Lead Containing Paint where the exposure level exceeds the P.E.L., shall possess current CDPH certification and at least one CDPH Certified supervisor shall be available as required by Title 17, CCR subsection 36100.

1.09 TRAINING
A. Lead Related Construction Work shall be performed by personnel with the following training, as applicable:

1. The Lead Related Construction Work, specified herein, shall be performed by individuals trained and qualified in the techniques of lead-related construction, handling, disposal of lead-based and Lead Containing Paint, and the subsequent cleaning of contaminated areas.

These individuals must comply with the applicable Environmental Protection Agency (EPA), Renovation, Repair and Painting (RRP) programs lead-related construction course that satisfies the requirements specified in 40 CFR, Part 745, Section 745., and must be capable of and willing to perform the Work of this section.

2. The Lead Related Construction Work, specified herein, shall be performed by a company, partnership, corporation, sole proprietorship or individual doing business, association, or other business entity; a Federal, State, Tribal, or local government agency; or a nonprofit organization, shall satisfy the requirements specified in 40 CFR, Part 745, Section 745.89, as a Lead-Safe Certified Firm.

3. Lead Abatement Work, specified herein, shall be performed by individuals trained and qualified in the techniques of lead abatement and will receive CDPH accredited training and certification, and must be capable of and willing to perform the Work of this section.

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2. Training specific to the performance of Lead Related Construction Work shall be provided to employees prior to performing the Work of this section.

3. Training specific to the operation and use of fire extinguishers.

1.10 EXPOSURE ASSESSMENT
A. Disturbance of Lead Containing Paint, as defined in this Specification, disturbed by tasks not included in Title 8, CCR Section 1532.1, Subsection (d)(2), shall require worker-exposure monitoring upon initiation of the Work.

The workers performing these tasks shall be trained in accordance with the Hazard Communications Standard, Section 5194, including but not limited to, the requirements concerning warning signs and labels, Safety Data Sheets (SDS), and employee information and training.

B. Provide an exposure assessment where the workers are performing Lead Related Construction Work. If historical data, collected within the 12 months prior to the Work performed, indicates worker exposure is below the P.E.L. , and the Work being performed closely resembles the process, type of material, control methods, work practices, and environmental conditions, additional exposure assessment is not required.

C. For Lead Related Construction Work where there is objective data or an exposure assessment demonstrating that the Lead Based Paint, or a specific process, operation or activity other than Abatement involving lead cannot result in employee exposure to lead at or above the P.E.L. during the specific process or handling, employees trained as required by Title 8, CCR Section 1532.1, including the training topics of the Lead-Safe Schools Program, may perform the Lead Related Construction Work.

D. Where Work being performed indicates an exposure above the Action Level, each employee is required to have current blood lead level and Zinc Protoporphorin testing, medical clearance for negative pressure respirator use, and respirator fit testing.

E. If there is no objective data or a negative exposure assessment fulfilling the above requirements, Lead Related Construction Work identified as a trigger task by Title 8, CCR 1532.1 shall be performed by workers who have received training as required by Title 8 CCR, Section 1532.1. This training shall, at a minimum, include the training topics of the Lead Safe Schools Program. An exposure assessment is required to be performed upon initiation of Work.

F. The required exposure assessment shall not exceed 12 months from the date the samples were collected to the date the Lead Related Construction Work or disturbance of Lead Containing Paint is performed.

G. The submission and review by the Owner Consultant of the objective data or exposure assessment is required prior to performing Lead Related Construction Work.

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1.11 SUBMITTALS
A. Provide in accordance with Division 01 and this section.

B. Prior to performing the Work of this section, submit the following procedures to the Owner Consultant:

1. An abatement plan including, but not limited to:
a. A detailed written description of the measures and
management procedures, including the containment that will be utilized during Abatement to prevent exposure to lead hazards.

Shop Drawings shall indicate the containment locations. b. A detailed written description of the Abatement, including methods of Abatement, locations of rooms and building
Component where Abatement is planned.

2. Required air monitoring procedures (Cal/OSHA mandatory and SCAQMD permits for air filtering equipment).

3. Decontamination procedures for personnel, Work Area, and equipment.

4. Procedures for handling and disposing of waste materials, including disposal facility.

5. Provide the procedures to be used for capturing debris while disturbing overhead materials.

6. Procedures for final Decontamination and cleanup.

7. Procedures for dealing with heat stress during Abatement.

8. Emergency procedures during Abatement.

C. Prior to performing Abatement Work of this section, submit the following Shop Drawings to the Owner Consultant:

1. Preparation of Work Area.

2. Layout and construction of Decontamination Enclosure System and barriers for isolation of the Work Area described in this Specification and required by applicable regulations.

D. Prior to performing the Work of this section, submit the following Product Data to the Owner Consultant:

1. Product Data relative to personal protective equipment including respiratory protection and protective clothing.

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2. Material safety data sheets and technical specifications for proposed materials.

E. Prior to performing the Work of this section, submit the following notifications to the Owner Consultant:

1. Evidence of notification to Cal/OSHA as required by Title 8 CCR, Section 1532.1, where applicable.

2. Notify CDPHno less than five days in advance of Abatement by submitting an Abatement of Lead Hazard Notification, CDPHForm 8551.

F. Prior to performing the Work of this section, submit the following documentation to the Owner Consultant:

1. A list of employees who will participate in the Project, including delineation of experience, training, and assigned responsibilities during the Project.

2. Submit proof satisfactory to the Owner Consultant that required permits, site location, and arrangements for transport and disposal of lead containing waste has been performed in accordance with Federal, State, and local regulations.

3. Submit proof of training for each worker who will perform Abatement or Lead Related Construction Work.

4. Submit manufacturer’s certification that HEPA Vacuums, air filtration units and other local exhaust ventilation equipment conform to ANSI Z9.2, as applicable.

5. When HEPA Vacuums are utilized on the Project, provide the maintenance and filter change log for these before they are brought onto the Project site.

6. Provide the current SCAQMD permit for each HEPA Vacuum and Portable Mechanical Ventilation System before they are brought onto the Project site.

7. Where biological monitoring is required, submit test result documentation verifying employees have completed blood lead level and Zinc Protoporphorin tests in accordance with Title 8 CCR, Section 1532.1.

8. Workers are required to submit a signed Code of Conduct form.

G. Prior to performing the Work of this section, submit the following Samples to the Owner Consultant:

1. Submit a Sample of forms to be used in documenting the Work of this section.

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1. An intended sequence of Work and construction schedule.

Coordinate both the sequence and durations with the Owner.

I. Prior to performing the Work of this section, submit other required items to the Owner Consultant.

J. During the performance of the Work of this section, submit the following documentation to the Owner Consultant:

1. Submit documentation from a physician certifying that employees who wear a negative pressure respirator are medically cleared to do so without suffering adverse health effects as required by DOSH regulations. The certification shall state that the employee or agent may perform Lead Related Construction Work and wear a negative pressure respirator without restrictions. Provide information to the examining physician about unusual conditions in the workplace environment that may impact the employee’s ability to perform Work activities.

2. During the performance of the Work of this section, and before additional supervisors or workers are permitted to perform the Work of this section, submit proof of CDPHtraining and certification, where applicable. No additional supervisors or workers are permitted upon the Project site until the Owner Consultant has approved the CDPHtraining and certifications, when required.

3. Submit weekly job progress reports detailing Abatement and Lead Related Construction Work activities for Projects that will exceed thirty days. Include review of progress with respect to previously established Milestones and schedules, major problems and action taken, injury reports, equipment breakdown, and air and/or wipe sampling results.

4. Within five workdays of transport and disposal, submit copies of transport manifests, disposal receipts, analytical data, and weight certificates for hazardous waste removed from the Work Area during the Lead Related Construction Work and/or Abatement Work. Weight certificates shall indicate by pounds the net weight of waste disposed of from the Project site as indicated on the associated manifest.

5. Submit daily, copies of Abatement Work site entry logbooks with information on worker and visitor access.

6. Submit logs on a weekly basis documenting filter changes on respirators, HEPA vacuums, HEPA filtered ventilation units, water filtration units, and other approved engineering controls, as applicable.

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7. Submit results of air and/or wipe sampling data (as applicable) collected during the course of the Abatement and Lead Related Construction Work including DOSH compliance air monitoring results.

K. During the performance of the Work of this section, submit other required items.

1.12 PRE-ABATEMENT MEETING
A. Attend a meeting to be held prior to the commencement of the Work of this section. Attending this meeting shall be representatives of the Owner, the Owner Consultant if applicable, and the testing and monitoring personnel who shall actually participate in the testing and monitoring program. Secure the attendance of the individual who will be the Project site competent person for the Abatement Work.

B. At this meeting provide required submittals except for those to be submitted during progress of the Work. In addition, provide detailed information concerning:

1. Preparation of Work Area and Shop Drawings.

2. Personal protective equipment, including respiratory protection and protective clothing.

3. Employees who will participate in the Project, including delineation of experience, training, and assigned responsibilities during the Work.

4. Decontamination procedures for personnel, Work Area, and equipment.

5. Abatement methods and procedures to be provided.

6. Required air monitoring procedures (pre-Abatement, Cal/OSHA mandatory, and SCAQMD requirement).

7. Procedures for handling and disposing of waste materials, including disposal facility.

8. Procedures for final Decontamination and cleanup.

9. A sequence of Work activities and performance schedule.

10. Procedures for dealing with heat stress.

11. Emergency procedures.

PART 2 – PRODUCTS

2.01 MATERIALS AND EQUIPMENT
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1. Deliver materials in the original sealed packages, containers, or bundles bearing the name of the manufacturer and brand name.

2. Store materials, subject to damage off the ground, away from wet or damp surfaces, and under cover sufficient enough to prevent damage or contamination. Replacement materials shall be stored outside of the Work Area until area is cleared for normal occupancy.

3. Damaged, deteriorating, or previously used materials shall not be furnished and shall be removed from the Project site and legally disposed of.

4. A sufficient supply of disposable mops, rags, and sponges for Work Area Decontamination shall be provided.

5. Unless otherwise specified, the Owner will provide water for construction purposes. Connect to existing system as required.

6. Products brought onto the Project site shall be accompanied by their respective Material Safety Data Sheet, which shall be maintained on the Project site.

7. Plastic, polyethylene sheeting or visqueen shall be a fire retardant type. Provide documentation from the manufacturer verifying compliance with this requirement.

8. Polyethylene sheeting furnished for the Decontamination Enclosure System shall be opaque white or black in color and shall be a minimum of 6-mil thick.

9. Surfactant (wetting agent) shall be a material that, when tested, demonstrates a surface tension of 29 dynes/cm as tested in its properly mixed concentration, using ASTM method D1331-56- "Surface and Interfacial Tension of Solutions of Surface Active Agents." Where Work Area temperature may cause freezing of the Amended Water solution, the addition of approved antifreeze in a manufacturer recommended amount is permitted.

B. Equipment:

1. Disposal bags shall be of 6-mil polyethylene, pre-printed with labels as required by applicable Cal/OSHA and DOT requirements.

2. Provide labels as per DOT requirements for disposal containers.

3. Provide warning signs as required by Cal/OSHA.

4. Disposal containers shall meet requirements of Title 22, CCR.

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5. Provide a sufficient supply of scaffolds, ladders, lifts, and hand tools, as needed to complete the Work.

6. Provide sprayers with pumps capable of providing amended water in sufficient quantity to adequately wet the material to be abated or for Lead Related Construction Work.

7. Provide a sufficient supply of HEPA filtered vacuums to maintain a clean environment in compliance with this section.

8. When an enclosure requiring negative pressure is specified, a sufficient quantity of air-filtration ventilation units furnished with HEPA filtration and operated in accordance with ANSI Z9.2and EPA guidance documents shall be utilized to provide one workplace air change every 15 minutes and creating a pressure differential of -0.02 inches of water everywhere within the enclosure when compared to the area outside the enclosure. A log documenting the filter change history of each unit shall be required before use, and any unit without this log shall have filters changed and the unit decontaminated.

9. When rental equipment is to be used in Abatement areas or to transport lead contaminated waste, a written notification concerning the intended use of the rental equipment shall be provided to the rental agency with a copy submitted to the Owner.

10. When performing chemical Removal, provide portable eyewash station(s) that meet ANSI standards and are accessible to workers within 10 seconds.

11. Additional safety equipment, as necessary, shall be provided to workers and authorized visitors.

12. Equipment delivered to the Project site shall be free of debris suspect of containing lead. No equipment with suspect debris in or on it shall be permitted on Owner properties and/or the Project site.

13. When roll-off disposal containers are delivered to a Project site, four wheels of each container shall be moved and rested upon a minimum size sheet of plywood of 4-foot by 4-foot by ¾ inch.

14. Lighting shall be provided in an amount sufficient to illuminate the Work Area for the purpose of safe visual working conditions and to permit examination of surfaces where Work is performed.

2.02 EMPLOYEE PERSONAL PROTECTIVE EQUIPMENT
A. Respiratory Protection:

1. Submit NIOSH approvals for respiratory protective devices utilized on the Project site. Include manufacturer certification of HEPA filtration capabilities for cartridges and filters. Filter cartridges shall be furnished with the NIOSH P-100 designation.

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2. Provide respiratory protection to employees in compliance with CCR Title 8, Sections 1532.1 and 5144, as determined by the employee exposure assessment.

3. In the absence of an exposure assessment, base respiratory protection on the requirements of Title 8, CCR Section 1532.1, specifically subsection (d).

4. In addition to P-100 filters, provide the appropriate respirator filter cartridges for exposure to other airborne contaminants generated during the Abatement process.

5. Provide authorized visitors with a respirator and cartridges sufficient to protect individuals from exposure to hazardous environments generated during the Abatement activity.

B. Fit Testing:

1. Perform fit testing in accordance with Title 8 CCR, Section 5144.

2. Submit documentation of respirator fit testing for individuals entering the Work Area.

3. Maintain and submit to the Owner a copy of the written respiratory protection program.

C. Personal Protective Clothing and Equipment:

1. Provide eye protection to employees sufficient to protect employees from debris during work progress when full-face respirators are not being utilized.

2. Provide and require the use of eye protection when employees are working with a material that may splash or fragment, as specified by the Material Safety Data Sheet for a given product, or as required by Title 8, CCR.

3. Spectacle kits and eyeglasses must be provided for employees who wear glasses and who must wear full-face piece respirators. Provide respirators that have been tested and approved by the National Institute of Occupational Safety and Health for use in leadcontaminated atmospheres.

4. Provide full-body disposable protective clothing, including head, body, and foot coverings to workers and authorized visitors who enter the Work Area, in sizes adequate to accommodate movement without tearing. A new suit shall be provided and donned for each separate entry.

5. If washable clothing is to be worn underneath disposable protective clothing, it shall be provided to Abatement workers.

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6. Provide a clean staging area for workers and others to store street clothes and personal protective equipment.

7. Disposal suits shall be collected in an appropriate disposal container at the entrance of the Abatement Work Area.

8. Abatement workers are required to wear nonskid footwear sufficient to protect them from workplace hazards. Disposable clothing shall be adequately sealed to the footwear to prevent body contamination.

9. Hand protection shall be provided, and workers shall be required to use lotion sufficient quantities to protect the worker when chemicals or other physical hazards exist.

10. As required by the Work site and applicable safety regulations, provide head protection and require the use thereof.

11. Worker protection equipment shall be ANSI approved.

PART 3 - EXECUTION

3.01 LEAD RELATED CONSTRUCTION WORK
A. Work Area Preparation and Work Practices:

1. Where exposure monitoring indicates Worker exposure is below the P.E.L., comply with the requirements of this section and the “Monitoring” section of this Specification.

2. Disturbance of lead containing materials shall be performed using wet methods.

3. Work requiring overhead disturbances shall require a means of capturing debris, thus preventing an uncontrolled release on the worker or the surfaces below.

4. For disturbances utilizing local exhaust dust collection devices the equipment shall be designed and furnished with a HEPA filtered vacuum attachment approved by the manufacturer.

5. Where Components are to be removed, loose Lead Based Paint and Lead Containing Paint shall be removed by manual means using wet methods.

6. Where a Component is attached and painted onto another surface and the Component is to be removed from the adjoining surface the paint shall be cut with a razor knife to reduce the potential of paint chip debris during Component removal.

7. If a Component being removed will be disposed of rather than reinstalled, manually cut the Component into manageable sections for TP-86
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8. If a Component is to be reused, loose paint or rough edges may require scraping or sanding. Scraping or sanding must be performed manually using wet methods or mechanically with a manufactured approved HEPA filtered local exhaust attachment.

9. For solid core surfaces where penetration or welding are required the lead containing material shall be removed from the area impacted using wet methods. Layers of Paint shall be removed before impact to the surface commences.

B. Clean Up Procedures:

1. During the entire process of Lead Related Construction Work, clean debris generated using wet methods and/or HEPA Vacuuming.

2. At the completion of the Lead Related Construction Work, clean surfaces within the impacted Work Area.

3. When HEPA filtered Vacuums are utilized, vacuum from the area of impact to the outer perimeter of the polyethylene sheeting to remove visible debris. If vacuuming cannot remove visible debris, wet wiping will also be required.

4. When wet wiping the Work Area, wipe from the area of impact to the outer perimeter of the polyethylene sheeting to remove visible debris.

5. Tools and equipment utilized in the Work Area shall be wet wiped to remove visible debris.

3.02 ABATEMENT
A. Work Area Preparation:

1. Clean areas to be isolated by HEPA Vacuum prior to installation of polyethylene sheeting.

2. Seal the Work Area with a layer of 6 mil thick polyethylene sheeting prior to any Lead Based or Lead Containing Paint Removal or disturbance by covering vents, windows, door openings, and any nonMoveable Objects such as lockers, etcetera.

3. Install a minimum of two layers of 6 mil thick polyethylene sheets on floors, fastened by waterproof tape and other means as necessary to secure the sheeting.

4. The covering on windows, exterior doors, and vents shall be installed from the outside to facilitate Work on them from the inside.

B. Decontamination Enclosure System:

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1. At a minimum a two-stage Decontamination Enclosure System consisting of a compartment for Decontamination and a Clean Room shall be constructed and used.

2. Unless otherwise specified, the Decontamination Enclosure System shall be adjacent to the Abatement area.

3. Other enclosure methods may be used if submitted and approved by the Owner Consultant.

C. Removal and Replacement Substrates with Lead Based Paint:

1. Except as noted in the Specifications and Drawings, replace substrate with material of the same or better quality. Substrates include, but are not limited to doors, windows, moldings, casements, mantels, trims, skirting, baseboards, and associated hardware and fasteners.

2. Areas adjacent to substrate removal shall be protected from damage.

Damages shall be repaired or replaced to original condition.

3. Substrates that are removed for replacement shall be wrapped and stored for disposal. Disposal shall be in accordance with the applicable codes and sections of this Specification.

4. After removal, the areas disturbed shall be cleaned and a Clearance Inspection performed in accordance with the procedures described in this Specification.

D. Abrasive Removers – Machine Sanders:

1. Machine sanders shall be furnished with a HEPA Vacuum system approved by the manufacturer.

2. Sanding shall only be performed on flat surfaces that allow the HEPA Vacuum dust collection attachment to come into tight contact with the surface being sanded.

3. Remove Lead Based Paint down to the bare substrate surface. If the pigment cannot be removed without damaging the substrate, submit a Request for Clarification to the Owner Consultant.

4. Protect adjacent surfaces from damage from machine sanding. Repair and/or replace damaged surfaces.

E. Chemical Removal-On-Site Chemical Removal:

1. No chemical Removal shall be performed on interior surfaces unless specifically called for and designed in the Specifications or the Abatement plan of the Project.

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2. Owner approved chemical removers shall be compatible with and harmless to the substrate. On masonry surfaces chemical removers shall contain anti-stain formulation that inhibits discoloration.

3. Chemical Removal Agent Neutralizer: Use chemical Removal agent neutralizers on exterior surfaces only. Neutralizers shall be compatible with and not harmful to the substrate. Neutralizers shall be compatible with the Removal agent that has been applied to the surface substrate.

4. Apply chemical Removal agents and neutralizers in accordance with the recommendations of the manufacturer and the following:
a. Adhere to health and safety regulations and other Specification section requirements. Stripping agents shall not be allowed to penetrate wood or other fibrous substrates.
b. Remove the softened paint by scraping or wire brushing. c. Protect adjacent areas from damage from Removal agent during the course of Work.

G. Water Jet Washing:

1. The purpose of the Water Jet Washing process is to remove LeadBased and Lead Containing Paint from exterior masonry substrate.

2. If this procedure is selected, submit a Work plan to the Owner Consultant which includes, but is not limited to, interim controls, paint stabilization, and capture of waste water.

K. Soil Abatement:

1. Surface Contamination:
a. Remove Lead Contaminated Soil from the locations and to a depth specified in the scope of Work.
b. In the absence of a specified depth of soil removal identified in the scope of Work, submit, prior to the bid, a Request for Clarification regarding the quantity of soil to be removed. c. Submit a written soil abatement plan prior to initiation of the Project.
d. No soil abatement shall proceed until the Work plan has written approval by the Owner Consultant.
e. Refer to the waste handling and transportation section of this Specification for the handling, characterization, and disposal of waste.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 22 L. Alternate Procedures:

1. If specified procedures cannot be utilized, a request must be made in writing to the Owner Consultant establishing details of the problem encountered and recommended alternatives.

2. Alternate procedures shall provide equivalent or greater protection than procedures that they replace.

3. Prior to implementation, alternative procedures shall be submitted and approved in writing by the Owner Consultant.

M. Clean Up Procedures

1. During the entire process of the Work of this section, perform continuous cleaning of debris generated using wet methods and/or HEPA filtered vacuuming.

2. At the completion of the Work of this section, clean surfaces within the impacted Work Area, including but not limited to, tools, equipment, and polyethylene sheeting to remove visible debris from the Work Area.

3. Tools and equipment utilized in the Work Area shall be thoroughly cleaned. Non-electrical tools and equipment shall be cleaned monthly and before Removal from the Work Area by HEPA vacuuming and washing using a lead specific detergent or other suitable cleaning agent.

4. Electrical tools and equipment shall be HEPA vacuumed and cleaned by wet wiping limiting the amount of water used to avoid electrical hazards.

5. Remove polyethylene sheeting, except for critical barriers, by folding it into itself beginning with the higher level polyethylene first.

6. Following Removal of polyethylene sheeting a final cleaning of surfaces in the Abatement workspace shall be performed by HEPA vacuuming, wet wiping, and a final HEPA vacuuming.

7. When HEPA vacuums are utilized, vacuuming shall be performed from the top down and from the area of impact to the outer edge of the polyethylene sheeting.

8. Apply no less than one continuous coat of approved paint or primer to abated surfaces, where applicable.

9. At the completion of the final clean up, the CDPHcertified supervisor shall inspect the Work Area for visible debris. If debris is identified, repeat the final cleaning process.

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10. Wet wiping, washing, and cleaning required by this section shall include the Removal of visible debris by cleaning with a lead specific detergent or other suitable cleaning agent in clean water followed by a rinsing with clean water and clean rags, following the same sequence of cleaning as the vacuuming.

11. Refer to the waste handling and transportation section of this Specification for disposal of waste generated by this process.

3.03 WASTE HANDLING AND TRANSPORTATION
A. Characterization of Waste:

1. Until analytical results are available, waste materials (including water containing paint chips) shall be treated as hazardous. Visible paint chips shall be separated from waste water before
characterization. Following removal of solids the waste water shall be characterized to determine disposal requirements. The paint chips removed from the waste water may be disposed of as assumed RCRA hazardous waste or characterized to determine disposal requirements.

2. Characterize waste streams as follows:
a. Collect a representative sample of the waste material. b. For a pile of waste take one sample of a proportionate combination of Component in the pile. If a large quantity of waste is generated no less than four samples may be
required.
c. For large wood Component, such as windows, doors,
etcetera, a representative sample of each Component of
similar characteristics, paint history, etcetera, shall be collected and tested. A full depth core sample, not less than one inch diameter, of the Component is to be collected. The core sample shall include the substrate and paint coatings on both sides of the Component, as applicable.

3. Analysis for the waste characterization samples shall be performed as follows:
a. Waste generated by chemical stripping shall, in addition to the requirements for determining the solid and soluble lead concentrations, shall be tested for corrosiveness and other contaminants, as applicable, resulting from the chemical stripping process.
b. Analyze samples for Total Threshold Limit Concentration (TTLC):

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 24 1) If results are less than 50 mg/kg (milligrams/kilogram) the waste is not hazardous and shall be disposed as
general construction waste.
2) If sample results are 50 mg/kg or greater, the waste shall be tested for Soluble Threshold Limit
Concentration (STLC).
c. Where waste is required to be tested for STLC the following shall apply:
1) If the STLC result is less than 5 mg/L (milligrams/liter) the material shall be disposed at a Class II waste
landfill. Evidence of such results of the STLC testing
will be required by the landfill before waste is
accepted. No further testing is required.
2) If the STLC results are 5 mg/L or greater, the waste is a California regulated waste and the material shall be
tested using the federally mandated Toxicity
Characterization Leaching Procedure (TCLP).
d. Where waste is required to be tested by TCLP the following shall apply:
1) If the TCLP is less than 5 mg/L, the waste is a
California regulated hazardous solid waste (nonRCRA). This material shall be disposed in a Class I hazardous waste landfill.
2) If the TCLP is equal to or greater than 5 mg/L, the
waste is a federally regulated hazardous waste solid
(RCRA). The waste shall then be disposed in a Class
I hazardous waste landfill.
e. Personal and commercial wash water with lead
contamination shall be handled as follows:
1) Filter the waste water through cheesecloth, or other similar filtering media, to remove the gross debris.

Separate the waste streams and characterize these in
compliance with this Specification.
2) If the waste water is identified as a RCRA or
California regulated hazardous waste (Non-RCRA) by
STLC and TCLP, filter the waste water by power
pumping it through a 20 micron pore size filter. The
filtered water shall be tested as described for waste in this Specification.

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GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 25 3) If test results categorize the filtered water as nonhazardous, it may be disposed of in the sewer system.
4) Wastewater, filtered or otherwise, shall not be
discharged in storm drains, gutters or allowed to
sheet flow over the surface of the ground.

B. Waste Handling:

1. Waste, hazardous and non-hazardous, shall be disposed of at an authorized site in accordance with provisions of this Specification and applicable Federal, State, and local laws.

2. Any waste determined to be hazardous, through analytical testing, shall be kept in a secured area or lockable container that is inaccessible to persons other than authorized personnel working on the Project. Hazardous waste containers shall be labeled “Hazardous-Waste – Contains Lead” and labeled with the date waste collection commenced.

3. Hazardous waste shall not remain on the Project site beyond 90 days of the date it was generated. It shall be removed from the Project site and transported to an approved landfill before the 90 days has elapsed.

4. Waste shall not be transported from the work are to the storage container or waste hauler’s vehicle while students or staff are present in the path of travel. Where a path of travel cannot be cordoned off the transportation of waste must be completed prior to of after students and staff are not on site.

5. Once hazardous waste is removed from the Project site, ensure it is disposed of in an approved landfill within 6 days. The waste shall not be transported to another site for commingling of waste from a source other than the site of original generation. This requirement shall be documented by the proper execution of a Uniform Hazardous Waste Manifest signed by the landfill operator.

6. Hazardous and non-hazardous waste shall be kept in different containers and stored in separate locations. Commingling of waste is not permitted.

7. As the Work progresses, to prevent exceeding available storage capacity on the Project site, sealed and labeled containers of lead waste shall be removed and transported to the prearranged disposal location.

8. Containers used for hazardous waste shall meet the requirements of EPA and DOT for hazardous waste storage and transport. At a minimum, disposal packaging of Lead Based Paint fragments, dust, TP-93
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9. Any debris or residue observed on containers or surfaces outside of the Work Area resulting from clean up or disposal activities shall immediately be cleaned using HEPA filtered vacuum equipment and/or wet methods as appropriate.

10. Materials not contained in bags or other appropriate disposal containers shall not be placed in lead waste storage containers, nor shall storage containers be used for non-lead waste. To avoid damage, packaged waste shall be placed, not thrown, into the storage containers.

11. Lead Contaminated Soil shall be transported in plastic lined containers.

C. Transportation of Non-Hazardous Waste:

1. Receipts from the disposal facility, trip tickets, transportation manifests, weight certificates or other documentation of disposal shall be delivered to the Owner Consultant within 48 hours of disposal. The waste manifest shall be signed by the generator, the transporter(s), and the disposal site operator each time the responsibility for the waste material is transferred. If a separate hauler is employed, the name, address, and signature of the transporter shall also appear on the manifest.

D. Transportation of Hazardous Waste:

1. Hazardous waste shall be transported by a RCRA/DOT/EPA certified hazardous waste transporter. Provide evidence that the hazardous waste transporter meets the requirements of this Specification.

2. The Work of this section includes responsibility for actions of the hazardous waste transporter as it pertains to waste Removal and disposal related to the Work of this Specification.

3. Identify the facility to which the waste generated by this Specification will be taken. Evidence shall be provided verifying the facility is licensed/permitted to receive and handle non-hazardous lead containing waste and/or hazardous lead containing waste as applicable.

4. Waste disposed as hazardous shall be transported under a Uniform Hazardous Waste Manifest. The generator copy of this manifest shall be submitted to the Owner Consultant within five days of transport.

5. Dump receipts, trip tickets, transportation manifests, weight certificates or other documentation of disposal shall be delivered to TP-94
SECTION 02 8333

LEAD ABATEMENT AND LEAD RELATED CONSTRUCTION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 27 the Owner Consultant within 48 hours of disposal. The Uniform Hazardous Waste Manifest shall be signed by the generator (or designee), the transporter(s), and the disposal site operator each time the responsibility for the waste material is transferred. If a separate hauler is employed, the name, address, U.S.E.P.A. ID number and signature of the transporter shall also appear on the manifest.

6. The enclosed cargo area of trucks or containers shall be free of debris and lined with 6-mil polyethylene sheeting to prevent contamination from leaking or spilled containers. Floor sheeting shall be installed first and extend up the walls. Wall sheeting shall be overlapped and taped into place.

7. During transport, drums and other containers shall be placed on level surfaces in the cargo area and packed tightly together to prevent shifting and tipping. Large structural Component shall be secured to prevent shifting and bags placed on top.

3.04 MONITORING
A. Project Management and Inspection:

1. Owner has the right to perform air, wipe, and visual monitoring at any time.

2. Owner shall proceed in accordance with the terms and conditions of the Contract Documents whenever the Work or protective measures are not in compliance with applicable governmental regulations, Contract requirements, and/or threatens the adjoining environment with lead contamination.

3. Where exposure monitoring indicates exposure is at or above the P.E.L. comply with Title 8, CCR Section 1532.1 (e) through (n).

B. Employee – Personal Air Monitoring:

1. Provide air monitoring as required by Title 8 CCR, Section 1532.1.

Results shall be provided within ten working days of sampling. If the intent is to utilize such as exposure assessment documentation, and Work is to commence earlier than ten working days, submit results 24 hours in advance of the start of Work.

C. Clearance Inspection:

1. Clearance Inspection for Lead Related Construction Work shall include:
a. A visual inspection of the Work Area by the Owner
Consultant prior to occupancy for normal activity.

TP-95
SECTION 02 8333

LEAD ABATEMENT AND LEAD RELATED CONSTRUCTION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 28 b. Do not remove barriers designating a regulated Work Area until a written release from the Owner Consultant is
provided.
c. The Owner Consultant has the right to collect wipe samples as part of the Clearance Inspection.

2. Clearance Inspection for Abatement shall include:
a. A visual inspection of the Work Area by the Owner
Consultant prior to collection of environmental samples (dust, wipe, and/or soil samples, as applicable).
b. Owner Consultant shall collect environmental samples. c. Results of samples shall comply with Title 17, CCR before the Work Area is released for normal occupancy.
d. Where samples fail to meet regulated clearance levels of Title 17, CCR, clean the Work Area as required for final cleaning in the Clean Up Procedures section of this Specification. e. Following cleaning, the visual inspection and environmental sampling will be repeated as described above. This process shall continue until the clearance level of Title 17, CCR is provided.

3.05 RE-ESTABLISHMENT OF THE WORK AREA AND SYSTEMS
A. Re-establishment of the Work Area shall only occur following the completion of clean-up procedures and after a Clearance Inspection has been performed and documented to the satisfaction of the Owner Consultant.

B. Re-secure Moveable Objects removed from their former positions during area preparation activities.

C. Relocate Moveable Objects that were removed to temporary locations back to their original positions.

D. Reestablish HVAC, mechanical and electrical systems to the condition prior to commencement of the Project.

E. Repair areas of damage that occurred as a result of Abatement or Lead Related Construction Work.

3.06 PROJECT COMPLETION DOCUMENTATION
A. Provide to the Owner Consultant of the following close-out documentation:

TP-96
SECTION 02 8333

LEAD ABATEMENT AND LEAD RELATED CONSTRUCTION WORK
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 02 8333 - 29

1. Filter change logs for air filtration units, water filtration units and respirators

2. Foreman's daily job reports

3. Employee entry and exit logs for Work Areas

4. Visitor entry and exit logs for Work Area

5. Air sample results for personnel

6. Copies of hazardous and non-hazardous waste manifest

7. Hazardous waste weight tickets

8. Analytical data and chain of custody for waste characterization

9. Signed Daily Personnel Report Forms
B. Provide Owner Consultant with as-built drawings identifying surfaces where Lead Based Paint has been encapsulated or enclosed.

END OF SECTION
TP-97
SECTION 311000

SITE CLEARING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 1000 - 1 PART 1 - GENERAL

1.1 SUMMARY
A. Section Includes:

1. Cleaning site of debris, grass, trees and other plant life in preparation for site or building excavation Work.

2. Protection of existing structures, trees or vegetation indicated to remain.

3. Stripping topsoil from areas indicated.

B. Related Documents: The Contract Documents, as defined in Section 011000 - Summary of Work, apply to the Work of this Section. Additional requirements and information necessary to complete the Work of this Section may be found in other Documents. See Project Manual for recycling and construction materials requirements.

1.2 PROJECT CONDITIONS OR SITE CONDITIONS
A. Existing Conditions:

1. Notify the City of variations to conditions or discrepancies in actual site conditions prior to start of site preparation Work.

2. Traffic: Conduct operations and removal of debris with minimum interference to roads, streets, walks, and other adjacent facilities. Do not close or obstruct streets, walks or other facilities without permission from authorities having jurisdiction.

3. Protections: Provide protection for safe passage of persons around area of site preparation. Take precautions and conduct operations to prevent injury to adjacent buildings, structures, other facilities, and persons. a. Provide interior and exterior shoring, bracing, or support to prevent movement, settlement or collapse of structures to be demolished and adjacent facilities to remain.

PART 2 - PRODUCTS

2.1 MATERIALS
A. Concrete Paving
B. CMU wall fence
C. Plant, Trees, & Sod Materials
D. Guardrails, Handrails, Bollards, and Chain-link fence E. Light Poles
F. Miscellaneous
TP-98
SECTION 311000

SITE CLEARING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 1000 - 2 PART 3 - EXECUTION

3.1 EXAMINATION
A. Verification of Conditions: Verify that field measurements, surfaces, substrates and conditions are as required, and ready to receive Work.

1. Locate existing utilities.

2. Verify that survey benchmark and intended elevations for the Work are as indicated and are not located in an area that may be damaged.

3. Verify that existing plant life and clearing limits are clearly tagged, identified and marked in such a manner as to ensure their safety throughout construction operations.

B. Report in writing to the City prevailing conditions that will adversely affect satisfactory execution of the Work of this Section. Do not proceed with Work until unsatisfactory conditions have been corrected and approved by the Engineer.

C. By beginning Work, Contractor accepts conditions and assumes responsibility for correcting unsuitable conditions encountered at no additional cost to the City.

3.2 PREPARATION
A. Provide temporary erosion control systems as indicated on Drawings or as directed by the Engineer to protect project site and adjacent properties and water resources from erosion and sedimentation.

3.3 CLEARING
A. Clear areas required for access to site and execution of Work.

3.4 TOPSOIL EXCAVATION
A. Strip 6” minimum of concrete paving and base material from areas that are indicated to receive new paving, or re-graded to depth that prevents contact with underlying subsoil or unsuitable material. Notify the City before stripping within root systems.

B. Topsoil: Organic surface soil found in depth not less than 6 inches.

C. Satisfactory Topsoil: Soil reasonably free of subsoil, clay lumps, stones and other objects over 2 inches in diameter, weeds, roots, and other unsuitable material.

D. Stockpile topsoil were indicated on Drawings or directed by the Engineer.

Construct stockpile areas to positively drain surface water. Cover stockpile areas TP-99
SECTION 311000

SITE CLEARING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 1000 - 3 as required to prevent windblown dust. Dispose of unsuitable topsoil off-site as specified clearing, unless directed otherwise by the Engineer. Dispose of excess topsoil off-site as specified for clearing, unless directed otherwise by the Engineer. Do not create dust hazards.

3.5 REMOVAL
A. Remove debris, rock, extracted plant life, paving, and other structures indicated on Drawings as specified in Section 024113 Site Demolition.

1. Collect, recycle, reuse, and dispose of demolished materials as specified in Project Manual – Part C Special Provisions Para. #17

3.6 PROTECTION
A. Protect existing streets, structures, and utilities.

B. Protect trees, plant growth, and features indicated to remain.

END OF SECTION
TP-100
SECTION 31 2316

EXCAVATION AND FILL FOR PAVING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 2316 - 1 PART 1 - GENERAL

1.1 SUMMARY
A. Section Includes:

1. Excavating, backfill, and compacting for paved areas.

2. Installation of fill materials.

B. Related Requirements:

1. Section 31 1000 - Site Clearing.

1.2 PROJECT REQUIREMENTS
A. Import and Export of Earth Materials:

1. Fees: Pay as required by authorities having jurisdiction over the area.

2. Bonds: Post as required by authorities having jurisdiction over the area.

3. Haul Routes and Restrictions: Comply with requirements of authorities having jurisdiction over the area.

1.3 SUBMITTALS
A. Imported Soils: A geotechnical engineer, retained by the Owner as an Owner Consultant, shall obtain initial product Sample for testing in accordance with the terms of Article 3.05 of this section.

1.4 QUALITY ASSURANCE
A. Comply with Standard Specifications for Public Works Construction, current edition, except as modified herein.

B. Sampling, testing, and certification of imported and/or exported soils shall be performed in accordance with Section 01 4524 - Environmental Import/Export Material Testing.

1.5 PROJECT CONDITIONS
A. Information on Drawings or in soils report does not constitute a guarantee of accuracy or uniformity of soil conditions over the Project site.

B. A copy of the soils report dated February 22, 2023 is attached as an appendix to these specifications for examination.

PART 2 - PRODUCTS

2.1 FILL AND BACKFILL MATERIALS
A. Fill and backfill materials shall be previously excavated materials or imported fill material, free of clods and stones larger than 3-inch, foreign materials, vegetable growths, sod, expansive soils, rubbish and debris.

Material shall conform to these specified requirements and related sections.

TP-101
SECTION 31 2316

EXCAVATION AND FILL FOR PAVING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 2316 - 2 B. Fill material exhibiting a wide variation in consistency and moisture content shall be blended or aerated to stabilize and upgrade the material.

C. Imported Fill Material:

1. Provide suitable materials obtained from Project site excavations for earthwork and fill materials. If excavated materials are not of suitable quality or sufficient quantity, import additional materials as necessary.

2. Imported fill shall be a granular material with sufficient binder to form a firm and stable unyielding subgrade and shall not have more than 60 percent of fines passing 200 mesh sieve. Material shall have a coefficient of expansion of not more than 2 percent from air dry to optimum moisture content and not more than 6 percent from air dry to saturation. Imported material shall be clean and free of rubbish, debris, and toxic or hazardous contaminants. Adobe or clay soils are not permitted.

D. Other Fill Materials: Brick rubble and broken concrete originating from the Project site may be legally disposed of off the Project site or incorporated in fill, if reviewed by a geotechnical engineer, retained by the Owner as an Owner Consultant. Unless otherwise required, no such materials may be imported from outside the Project site.

E. Permeable Backfill:

1. Provide permeable backfill material behind retaining structures consisting of gravel, crushed gravel, crushed rock, natural sands, manufactured sand, or combinations of these materials conforming to the following gradations:

Sieve Size: Percentage Passing:
3/4 inch (19mm) 100
3/8 inch (10mm) 80 to 100
No. 100 0 to 8
No. 200 0 to 3

2. Those portions of fill material passing a No. 4 sieve shall provide a sand equivalent of at least 60.

3. Provided backing for weep holes shall consist of two cubic feet of aggregate in burlap sacks, securely tied. Aggregate shall conform to requirements for No. 3 concrete aggregate as specified in subsection 200-1.4 of the Standard Specifications for Public Works Construction.

4. Permeable Backfill Alternate Materials: Instead of the materials specified for retaining structures backfill, a drainage matting system, Miradrain by Mirafi, Inc., or equal, may be provided if reviewed by the Architect.

PART 3 - EXECUTION

3.1 SITE PREPARATION
A. Clear the Project site as required in Section 31 1000 - Site Clearing.

TP-102
SECTION 31 2316

EXCAVATION AND FILL FOR PAVING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 2316 - 3

3.2 PROTECTION
A. Protect and guard excavations against danger to life, limb, and property as required by, but not limited to, Cal-OSHA regulations.

B. Protect adjacent existing improvements including landscaping against damage.

3.3 EXISTING UTILITY LINES
A. Protect existing utility lines from damage or displacement.

B. Remove conduits or pipes not in service, exposed during Work, unless a minimum cover of 2 feet is provided. Remove concrete, clay or other nonmetallic pipe over 8 inches in diameter, unless otherwise indicated.

3.4 EXCAVATION
A. Unclassified Excavations: Comply with the Standard Specifications for Public Works Construction, Section 300: "Earthwork,” except as modified herein.

3.5 FILL
A. Unclassified Fill and Compaction: Comply with the Standard Specifications for Public Works Construction, Section 300: "Earthwork,” except as modified herein.

B. Provide fill materials as specified in Part 2 - Products. If excavated materials from the Project site are not of required quality or sufficient quantity, import additional materials as necessary.

C. In addition to the requirements of this section, import and/or exported materials shall comply with the requirements of Section 01 4524 - Environmental Import/Export Material Testing.

D. Imported fill materials shall be sampled by a geotechnical engineer, retained by the Owner as an Owner Consultant, for compliance with the requirements of Part 2 of this Section.

E. The geotechnical engineer, retained by the Owner as an Owner Consultant, shall submit samples to an approved independent approved testing laboratory for testing.

F. Initial sampling shall be performed by the geotechnical engineer, retained by the Owner as an Owner Consultant, before importing material to the Project site. Identify the location of the source site in addition to the address, name of the person and/or entity responsible for the source site. The geotechnical engineer, retained by the Owner as an Owner Consultant, shall obtain both the initial and additional samples from the identified site and shall submit samples to the approved independent testing laboratory for testing.

G. The geotechnical engineer, retained by the Owner as an Owner Consultant, shall perform additional sampling during import operations. If the total quantity of import is determined to be greater than 1,000 cubic yards of material, one sample shall be obtained and submitted for testing tested for each 250 cubic yards of imported material. If the total quantity of import is TP-103
SECTION 31 2316

EXCAVATION AND FILL FOR PAVING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 2316 - 4 determined to be less than 1,000 yards, one sample shall be obtained and submitted for testing for each 100 cubic yards of imported material.

H. The independent approved testing laboratory shall perform the required tests and report results of tests noting if the tested material passed or failed such tests and shall furnish copies to the Project Inspector, Architect, City, Contractor, and others as required. Report shall state tests were conducted under the responsible charge of a licensed State of California professional engineer and the material was tested in accordance with applicable provisions of the Contract Documents, and applicable codes. Upon completion of the Work of this section, the independent testing laboratory and geotechnical engineer shall submit a verified report to the City.

I. Bills of lading or equivalent documentation will be submitted to the Project Inspector on a daily basis.

J. Upon completion of import operations, provide the City a certification statement attesting that imported material has been obtained from the identified source site.

3.6 INSTALLATION OF MATERIALS
A. Fill or backfill materials shall be installed in horizontal layers of 6 inches, unless otherwise required. Each layer shall be evenly placed and moistened or aerated as necessary. Unless otherwise reviewed by the geotechnical engineer, retained by the Owner as an Owner Consultant, each layer of fill material shall cover the length and width of the area to be filled before the next layer of material is installed. Top surface of each layer shall be installed to an approximate level with a crown or crossfall of at least 1 in 50, but no more than 1 in 20. Provide adequate drainage at all times during construction of the Work of this section.

3.7 COMPACTING
A. Each layer of fill material shall be compacted by tamping, sheepsfoot rollers, or pneumatic-tired rollers to provide specified relative compaction. At inaccessible locations, provide specified compaction by manually held, operated and directed compaction equipment.

B. Unless otherwise indicated, compact each layer of earth fill to a relative compaction of at least 95 percent.

C. When fill materials, or a combination of fill materials, are encountered or provided which develop densely packed surfaces as a result of installation or compacting operations, scarify each compacted layer before installing the next succeeding layer.

3.8 INSPECTION AND TESTING
A. The geotechnical engineer, retained by the Owner as an Owner Consultant, will inspect and test excavations, sample material quality as required in Part 2, and observe installation and compaction of fill materials.

B. The geotechnical engineer, retained by the Owner as an Owner Consultant, will sample imported fill materials from their designated source before delivery to the Project site.

TP-104
SECTION 31 2316

EXCAVATION AND FILL FOR PAVING
GARDENA ROSECRANS COMMUNITY CENTER – Demolition Phase 31 2316 - 5 C. Installation of backfill shall be observed by the geotechnical engineer, retained by the Owner as an Owner Consultant.

D. The geotechnical engineer, retained by the Owner as an Owner Consultant, will inspect and test excavation Work before the installation of fill and/or other materials.

E. Compaction: Test compaction in accordance with ASTM D1557, Method C.

3.9 PROTECTION
A. Protect the Work of this section until Substantial Completion.

3.10 CLEANING
A. Remove rubbish, debris, and waste materials and legally dispose of off the Project site.

END OF SECTION
TP-105

DN

PURCHE AVE

ROSECRANS AVE
(E)

CONCRETE

WALKWAY

EXISTING

CHASE BANK BUILDING
6,561 S.F.

PROPERTY LINE 200'

DRIVEWAY

DRIVEWAY
(E) STAIRS TOBASEMENT
(E) STAIRS
(E) LIGHT POLE TYP.(E) BOLLARD TYP.
(E) BOLLARD TYP.
(E) TRASH ENCLOSURETO BE REMOVED
X
X
X X X
X
(E)

CONCRETE

WALKWAY
(E)

CONCRETE

WALKWAY
(E)

CONCRETE

WALKWAY
J
J
J
X
(E) ROLLING GATE
DN DN

EXISTING CONCRETE SIDEWALK

EXISTING CONCRETE SIDEWALK
X
C
DC
D
D
D
CC
DD
D
EE
FF
EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:48:12 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
T1.1
2960
8-19-2022

CITY OF GARDENA
LOK
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

DEMOLITION SITE PLAN
JW
NO. REVISION DATE ISSUED
SCALE: 1" = 10'-0" 1 DEMOLITION SITE PLAN
N

DEMOLITION KEYNOTES
C REMOVE EXISTING TREE.

CC REMOVE EXISTING MASONRY SEAT WALL.

D REMOVE EXISTING CONCRETE SLAB. PREPARE AREA FOR NEW WORK.

DD REMOVE EXISTING LIGHT POLE.

EE REMOVE EXISTING CONCRETE STAIRS.

FF REMOVE EXISTING SIGNAGE BASE.

J EXISTING PARKING TO BE REPAIRED SLURRY, AND RESTRIPED.

X REMOVE EXISTING LANDSCAPE. PREPARE AREA FOR NEW WORK.

CITY OF GARDENA
UP
UP
MPR

STAIR WAY

STORAGE

MECHANICAL
MENS
WOMENS

HALL WAY
I.T.

ELECTRICAL

JANITOR
43' - 6" 36' - 2"
79' - 9"
36' - 1" 7' - 0" 5' - 9" 3' - 5" 26' - 6"
10' - 9" 11' - 0" 55' - 9"
7' - 6"
19' - 6" 5' - 10" 9' - 2" 8' - 9"
8' - 8"
6' - 10" 24' - 0"
8' - 10"
20' - 5"
27' - 5"
5' - 6"
10' - 0"
8' - 8" 6' - 11"
23' - 6"
43' - 6"
1' - 0"
8' - 7"
7' - 0"
4' - 11"
4' - 0"
2' - 11"
6' - 11"
8' - 10"
12' - 4"

OFFICESTORAGE

BREAKROOM
G
G
E E W
TYP.

W
TYP.

E
EE
EE
E
E
A
O
O
A
O
H
H
U
H
Z
H O
O H
A H O
A H O
Q H O
T
T
A H O
T
T
T
T
Q H O
Q H O
TT
T
O H
O H
AA
AA
AA
AA
AA
AA
BB
BB
BB
BB
BB
BB
AA BB
BB
BB
BB
BB
BB
G
G
G G
TYP
Z
BB
REMOVE AND REPLACE I.T. SYSTEM

REMOVE AND REPLACEELECTRICAL SYSTEM
WALLS TO BE DEMOLISHEDEXISTING WALLS TO REMAIN. PATCH AND REPAIRTO MATCH EXISTING FINISHES WHERE DAMAGEDBY DEMOLITION.NEW 2x METAL STUDS AT 16" O.C. WITH FINISHESPER MATERIAL SCHEDULE.NEW 12" THICK CONCRETE SHEAR WALL EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:47:57 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
A1
2960
8-19-2022

CITY OF GARDENA
LOK
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

DEMOLITION BASEMENTPLAN
JW
NO. REVISION DATE ISSUED
SCALE: 3/16" = 1'-0" 1 DEMOLITION BASEMENT FLOOR PLAN
N

WALL LEGEND

DEMOLITION KEYNOTES
A REMOVE EXISTING FLOORING AND ADHESIVE. PREPARE AREA FOR NEW WORK.

AA REMOVE EXISTING GYP. BOARD CEILING / T-BAR CEILING. PREPARE AREA FOR NEW WORK.

BB REMOVE AND REPLACE EXISTING FIRE SPRINKLER SYSTEM, RISER LINES, AND PLUMBING LINES.

E EXISTING PLUMBING FIXTURES TO BE REMOVED. PATCH AND REPAIR IMPACTED WALL/FLOOR SURFACES TO REMAIN.

G REMOVE EXISTING DOOR AND DOOR FRAME. INFILL OPENING WITH 2X STUDS AT 16" O.C., PATCH AND REPAIR WALL SURFACES TO MATCH EXISTING.

H REMOVE EXISTING ELECTRICAL LIGHT FIXTURES, ETC. AND PREPARE FOR NEW ELECTRICAL WORK.

O REMOVE EXISTING RUBBER BASE, TYPICAL THROUGHOUT AREAS OF WORK.Q REMOVE EXISTING CERAMIC TILE FLOORING. PREPARE AREA FOR NEW WORK.

T REMOVE EXISTING CERAMIC TILE FINISH AT WALL. PREPARE AREA FOR NEW WORK.

U REMOVE AND REPLACE EXISTING MECHANICAL EQUIPMENT AND DUCTING. PREPARE AREA FOR NEW WORK.

W REMOVE EXISTING TOILET PARTITIONS AND ATTACHED TOILET ACCESSORIES.

Z REMOVE EXISTING SEWAGE LIFT SYSTEM. PREPARE AREA FOR NEW WORK.

CITY OF GARDENA
B
C
2 2.3 3.1 4
A
D
3 1 5
9' - 6" 5' - 0"
295 SF

VAULT STORAGE
79' - 8"
107
79' - 9"
7' - 11"
11' - 11" 34' - 5"
16' - 6"
TYP.
7'- 0"
5' - 3" 14' - 7" TYP.
1' - 6"
1' - 0"
TYP.
23' - 6"
OFFICE

OFFICEOFFICE
OFFICE

STORAGE
LOBBY
7' - 0"
TYP.

TYP.
1' - 6"
1' - 0"
TYP.
16' - 3"
4' - 2" 7' - 6"
20' - 0"
A
B
H
Y
Y Y
YY
Y Y
Y
A
A
A
A
A
A
B B
V
G
TYP.

V
V
V
G TYP.

V
G
G
WALLS TO BE DEMOLISHEDEXISTING WALLS TO REMAIN. PATCH AND REPAIRTO MATCH EXISTING FINISHES WHERE DAMAGEDBY DEMOLITION.NEW 2x METAL STUDS AT 16" O.C. WITH FINISHESPER MATERIAL SCHEDULE.NEW 12" THICK CONCRETE SHEAR WALL EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:47:58 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
A1.1
2960
8-19-2022

CITY OF GARDENA
LOK
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

DEMOLITION FIRST FLOORPLAN
JW
NO. REVISION DATE ISSUED
SCALE: 3/16" = 1'-0" 1 DEMOLITION FIRST FLOOR PLAN N

WALL LEGEND

DEMOLITION KEYNOTES
A REMOVE EXISTING FLOORING AND ADHESIVE. PREPARE AREA FOR NEW WORK.B EXISTING BUILT-IN BASE CABINET TO BE DEMOLISHED. PATCH AND REPAIR DAMAGED WALL SURFACES TO MATCH EXISTING.

G REMOVE EXISTING DOOR AND DOOR FRAME. INFILL OPENING WITH 2X STUDS AT 16" O.C., PATCH AND REPAIR WALL SURFACES TO MATCH EXISTING.

H REMOVE EXISTING ELECTRICAL LIGHT FIXTURES, ETC. AND PREPARE FOR NEW ELECTRICAL WORK.

V REMOVE EXISTING PARTITION WALL.

Y REMOVE EXISTING WINDOW MULLION SYSTEM. PREPARE AREA FOR NEW WORK.

CITY OF GARDENA
B
C
2 2.3 3.1 4
N

EDGE OF ROOF

EDGE OF ROOF

EDGE OF ROOF

EDGE OF ROOF

OUTLINE OF BUILDING BELOW

OUTLINE OF BUILDING BELOW

OUTLINE OF BUILDIN BELOW

OUTLINE OF BUILDING BELOW
A
D
3 1 5
1 A7
112' - 4"
112' - 8"
37 27 30
37 37
37 EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:48:04 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
A4
2960
8-19-2022

CITY OF GARDENA
LN
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

ROOF PLAN
JW
NO. REVISION DATE ISSUED
SCALE: 3/16" = 1'-0" 1 ROOF PLAN

RENOVATION KEYNOTES
27 NEW R-30 RIGID INSULATION SHAPED TO SLOPE TO DRAIN AT 2% MIN. SLOPE.30 NEW TPO/PVC ROOFING SYSTEM.37 NEW EXHAUST FANS AS PART OF HVAC SYSTEM.

CITY OF GARDENA

FIRST FLOOR
0' - 0"
ROOF
26' - 0"
C B

SECOND FLOOR
10' - 0"
D A
47 26
1212
1212

FIRST FLOOR
0' - 0"
ROOF
26' - 0"
2 2.3 3.1 4

SECOND FLOOR
10' - 0"
3 1 5
47 47
12 1212
1212
26 2730
EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:48:05 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
A5
2960
8-19-2022

CITY OF GARDENA
LOK
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

EXTERIOR ELEVATIONS
JW
NO. REVISION DATE ISSUED
SCALE: 3/16" = 1'-0" 2SCALE: 3/16" = 1'-0"

WEST ELEVATION
1 SOUTH ELEVATION

CITY OF GARDENA

RENOVATION KEYNOTES
12 NEW PAINT, PREP AND REPAIR SURFACE AS NEEDED.26 NEW STOREFRONT CURTAIN WALL ALUMINUM FRAME AND GLAZING SYSTEM.27 NEW R-30 RIGID INSULATION SHAPED TO SLOPE TO DRAIN AT 2% MIN. SLOPE.30 NEW TPO/PVC ROOFING SYSTEM.47 NEW 12" THICK CONCRETE SHEAR WALL.

FIRST FLOOR
0' - 0"
ROOF
26' - 0"
2 2.3 3.1 4

SECOND FLOOR
10' - 0"
3 1 5
1212
1212
26 26 26 47 47
2730
12 FIRST FLOOR
0' - 0"
ROOF
26' - 0"
C B

SECOND FLOOR
10' - 0"
D A
1212
1212
26 26 26 47 47
EdwardLok Ng
C-16840
REN.11/30/23

L CI ENSED ARCHITECT

STAT E OF CA L I FORN AI
Client:

Consultant:

CAD Draft:

Architect:

Engineer:

Job Number:

Date Issue:

Client:

Architecture Designer:

Interiors
Planning
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
These drawings and accompanying, as instruments of service, are the exclusive property of the Architect and their use and publication shall be restricted to the original site for which they were prepared. Re-use, reproduction or publication by any method, in whole or part, is prohibited by written permission from the Architect. Title to these plans and specifications shall remain with the Architect without prejudice, and visual with them shall constitute prima facie eveidence of acceptance of these restrictions. 9/14/2022 2:48:06 PM
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\1-Schematic\CHASE BANK - Feasibility Set.rvt 2501 ROSECRANS AVE
A6
2960
8-19-2022

CITY OF GARDENA
LN
JS
LOK

FEASIBILITY STUDY FOR

PROPOSED ROSECRANS

COMMUNITY CENTER

AT OLD CHASE BANK PROPERTY

EXTERIOR ELEVATIONS
JW
NO. REVISION DATE ISSUED
SCALE: 3/16" = 1'-0" 1 NORTH ELEVATIONSCALE: 3/16" = 1'-0" 2 EAST ELEVATION

CITY OF GARDENA

RENOVATION KEYNOTES
12 NEW PAINT, PREP AND REPAIR SURFACE AS NEEDED.26 NEW STOREFRONT CURTAIN WALL ALUMINUM FRAME AND GLAZING SYSTEM.27 NEW R-30 RIGID INSULATION SHAPED TO SLOPE TO DRAIN AT 2% MIN. SLOPE.30 NEW TPO/PVC ROOFING SYSTEM.47 NEW 12" THICK CONCRETE SHEAR WALL.

August 12, 2021
Mr. Kevin Kwak
City of Gardena
1717 West 162nd Street
Gardena, California 90247
RE: Limited Asbestos and Lead Survey
Chase Bank
2501 West Rosecrans Ave
Gardena, California 90247
CES Project No.: 21-CGAR.04
Dear Mr. Kwak:

At the request of the City of Gardena, CES Environmental Consultants, Inc. (CES) completed an asbestos and lead survey at 2501 Rosecrans Avenue in Gardena, California 90247. The survey was conducted on July 30, 2021.

The survey was conducted to identify asbestos-containing materials (ACM) and lead in paint.

Summary of Findings:
• Asbestos-containing materials (ACMs) were identified. Refer to Section 5 (Table I) in this report for a summary of ACMs.
• Lead-Based Paint (LBP): Refer to section 6 (Table II). No Lead Based Paint was detected in the paint chip samples collected based on the limitations of the analytical method. • Lead-Containing Paint (LCP). Refer to section 6 (Table III). Lead Containing Paints were detected, according to Cal/OSHA Title 8 CCR, Section 1532.1(d) LCP are defined as paints reported with any detectable levels of lead by paint chip analysis. When disturbed for construction purposes, these surfaces are subject to Cal/OSHA exposure assessment requirements.

If you have any questions concerning the report, please contact our office.

This report was prepared by:

Elmer Ivan Castro
Certified Asbestos Consultant (CAC No.: 13-5074)
CDPH Lead Inspector/Assessor
CES Environmental Consultants, Inc.
6741 Friends Avenue, Suite B
Whittier, California 90280
(323) 399-3875
[email protected]

TABLE OF CONTENTS PAGE

1.0 PROJECT INFORMATION 1

2.0 INTRODUCTION AND BACKGROUND 1

3.0 SUBJECT SITE, AREA DESCRIPTION, MATERIAL CONDITIONS 1

4.0 PROJECT SURVEY 1

5.0 ASBESTOS SURVEY AND SAMPLING 1

5.1 Asbestos Laboratory Accreditation & Analytical Method 1

5.3 Asbestos Sample Results 2

5.4 Asbestos Recommendations 4

6.0 LEAD SURVEY AND SAMPLING 5

6.1 Lead Paint Chip Sampling Protocol 5

6.4 Lead Recommendations 6

6.6 Lead Waste Disposal 7

7.0 LIMITATIONS 7
Appendices
Appendix A: Bulk Samples, Analytical Data and Chain of Custody-Asbestos Appendix B: Analytical Data, Chain of Custody, XRF Report and CDPH Form 8552-Lead in Paint Appendix C: Sample Diagrams
Appendix D: Inspector Certifications

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
1 | Page

1.0 PROJECT INFORMATION
Chase Bank
2501 West Rosecrans Ave
Gardena, California 90247

2.0 INTRODUCTION AND BACKGROUND
CES Environmental Consultants (CES) conducted a Limited Asbestos and Lead in Paint Survey at 2501 West Rosecrans Ave Gardena, California 90247 at the request of the City of Gardena.

3.0 SUBJECT SITE, AREA DESCRIPTION, MATERIAL CONDITIONS The location of the property is 2501 West Rosecrans Avenue in Gardena, California 90247. The property is a public bank, At the time of the survey, the buildings was vacant. There were no obvious signs of structural or fire damaged observed at the time of the survey. The survey included all accessible areas of the building including floors, walls, ceilings, crawlspaces and attic spaces if available. The ceiling materials on the 1st Floor Bank Space were not accessible for sampling at the time of the survey. Additional survey and testing should be conducted prior to renovation/demolition of the ceiling material.

4.0 PROJECT SURVEY
CES representative, Mr. Cesar Ruvalcaba, a Cal-OSHA Certified Asbestos Consultant (CAC No.: 95-1799) and California Department of Public Health Lead Inspector/Risk Assessor conducted the sampling.

CES’s objective was to conduct a survey and sampling of suspect asbestos-containing materials (ACM) and lead in paint. The survey included the following:
• Survey of the affected areas to locate suspect ACM and lead in paint; • Physical assessment of suspect ACM, and painted surfaces; • Collection of bulk samples from suspect ACM materials, and painted surfaces; and • Submitted samples collected for laboratory analysis of all ACM.

5.0 ASBESTOS SURVEY AND SAMPLING

5.1 Asbestos Laboratory Accreditation & Analytical Method The samples were analyzed by AQ Laboratory located at 1508 East 33rd Street, Signal Hill, California 90755 (562) 206-2770 (NVLAP Code 500044-0).

Collected bulk samples were analyzed using polarized light microscopy (PLM) for asbestos content in accordance with the United States Environmental Protection Agency’s (USEPA) Determination of Asbestos in Bulk Building Materials: EPA/600/R-93/116, July 1993.

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
2 | Page

5.2 Asbestos Sampling Protocol
The sampling was conducted using guidelines set forth in US Environmental Protection Agency (EPA) Federal Register 40 CFR Part 763. Based on the requirements of the EPA, (40 CFR 763), a homogeneous material is defined as “an area of surfacing material, thermal system insulation material or miscellaneous material that is uniform in color and texture.” The regulation requires that a minimum number of samples be collected from each homogeneous material. If one sample in a homogeneous material is found to contain asbestos, the entire homogeneous material should be considered to be asbestos-containing.

The EPA and California Occupational Safety and Health Administration (Cal-OSHA) have defined building materials containing asbestos as follows:
• Asbestos-Containing-Material (ACM) - any material containing greater than 1 percent (>1%) asbestos as determined by PLM, 40 Code of Federal Regulations (CFR) Part 61, Subpart M and The South Coast Air Quality Management District (SCAQMD) Rule 1403. • Asbestos-Containing-Construction-Material (ACCM) - any material containing less than one percent (<1%) asbestos and greater than one tenth of one percent (>0.1%) asbestos by 1000-point count analysis, California Code of Regulations (CCR), Title 8, Section 1529.

5.3 Asbestos Sample Results
Table I: Summary of Bulk Sample Results
Sample No.: Material Material Location Asbestos Content Condition Friable Est. Quantity 01, 02, 03 Exterior stucco Basement- Room B10
*<0.10%
Chrysotile by
1000-pt. count
Intact No 950 sq. ft.
06, 07, 08 Vent caulking Basement- Room
B10, B9 10% Chrysotile Intact No 150 ln. ft.
09, 10, 11, 12, 13 Smooth plaster All rooms in basement None Detected Intact No 3,520 sq. ft 14, 15 Sand plaster Basement- Room B1,
B9 None Detected Intact No 2,000 sq. ft
16, 17, 18 White sealant on
ducts seam Basement- Room B9 None Detected Intact No 200 ln. ft 19, 20, 21 4'' pipe elbow
insulation Basement- Room B9 15%-25% Chrysotile Intact No 1 elbow 22, 23, 24 4’’ pipe insulation Basement- Room B9 None Detected Intact No 150 ln. ft 25, 26, 27 Vibration reducer
(on duct) Basement- Room B9 60% chrysotile Intact Yes 1 unit 28, 29, 30 Valve cap insulation Basement- Room B9 None Detected Damaged Yes 1 unit 31, 32, 33 4’’ black cove base
with glue
All rooms in basement
and 1st floor None detected Intact No 3,000 ln. ft.
34, 35, 36 12'' x12'' cork ceiling
tile with brown glue
Basement- Lobby,
Room B4 None Detected Intact Yes 2,500 sq. ft

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
3 | Page
37, 38, 39 Red ceramic tile
(mortar/tile)
Basement- Restroom,
Lobby 1st Floor- all
areas
None Detected Intact No 10,000 sq ft
40, 41, 42 Black stair tread with
yellow glue
1st floor to basement
stairs None Detected Intact No 150 sq. ft
43, 44, 45 12" x 12" white floor
tile with glue
Basement- Room B6,
B5, 1st Floor- Corner
Offices
None Detected Intact No 1,500 sq. ft.
46, 47, 48, 49, 50 Drywall with mud
Basement- Men's
Restroom, Room B2,
1st Floor- Corner
Offices
None Detected Damaged Yes 1,900 sq. ft
51, 52, 53 2' x 4' pinhole ceiling
panel
Basement- Men's
Restroom, 1st FloorRoom 1-6
None Detected Damaged Yes 450 sq. ft
54, 55, 56 6’’ black cove base
with glue Basement- Room B3 None Detected Intact No 80 ln. ft 57, 58, 59
Brown/green carpet
glue with leveling
compound
Basement- Room B3,
B4, 1st Floor- 1-6, 1-0 None Detected Intact No 8,000 sq. ft 60, 61, 62 2’x4’ fissured ceiling
panel Basement- Room B2 None Detected Damaged Yes 150 sq. ft 63, 64, 65 Sand plaster wall Basement- Room B9 None Detected Damaged No 2,000 sq. ft. 66, 67, 68 Acoustic ceiling 1st Floor- Room 1-2 None Detected Intact Yes 450 sq. ft 69, 70, 71
12'" x 12" random
hole ceiling tile
with black glue
1st Floor- Room 1-5
None Detectedtile,
20% Chrysotilemastic
Intact Yes 300 sq. ft
72, 73, 74 Gypsum wall panels 1st Floor- Room 1-6 None Detected Intact No 400 sq. ft 75, 76, 77 12’’x12’’ ceramic tile
(mortar/grout) 1st Floor- Room 1-0 None Detected Intact No 2,500 sq. ft 78, 79, 80 Black/green floor
glue 1st Floor- West Area None Detected Intact No 200 sq. ft 81, 82, 83 Door/window
caulking
All entering doors &
windows None Detected Intact No 1,500 ln. ft
84, 85, 86 Floor caulking Exterior floor joints None Detected Intact No 1,500 ln. ft 87, 88, 89 12" x 12" white floor
tile with yellow glue
1st Floor- Room 1-2
(top layer), Room 1-4
(top layer)
None Detected Intact No 600 sq. ft
90, 91, 92 Mortar/grout to
1''x1''ceramic tile
Basement- Men's &
Women’s restroom None Detected Intact No 1,500 sq. ft
93, 94, 95 Gravel roof with light
weight concrete Roof None Detected Intact No 6,700 sq. ft 96, 97, 98 Gray roof mastic Roof- Vents & drains 5%-8% Chrysotile Intact No 100 sq. ft *For materials reported below the Cal-OSHA asbestos regulated level of less than <0.1% by 1,000-point count analysis, the laboratory reported "Asbestos fibers were observed in the field of view but not counted as points". Although the results are reported to be below the Cal-OSHA regulated level of <0.1% but considering that asbestos fibers were observed by the laboratory, and in an abundance of caution, CES recommends that any work activities which disturbs the material be conducted using appropriate worker protection and engineering controls.

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
4 | Page

5.4 Asbestos Recommendations
Removal of ACMs should be conducted by a licensed asbestos abatement Contractor utilizing isolation control methods and dispose of properly. Workers handling ACMs shall be asbestos trained and shall wear the appropriate personal protective equipment.

The USEPA (locally enforced by South Coast Air Quality Management District (SCAQMD) requires that all asbestos materials be removed prior to any renovation or demolition activities that may impact the material. The USEPA recommends that a proactive, in-place management program be put in place whenever asbestos is discovered in a building. Asbestos materials that are not damaged may be managed in place with a good operations and maintenance (O&M) program.

A review of all other asbestos survey information available for the property in conjunction with these results should be conducted prior to proceeding with any project activities and/or when a change in the project scope is developed. If suspect asbestos-containing materials will be impacted that are not addressed in this survey or in the historical survey records, additional sampling should be conducted prior to disturbance. Historical records, typically, have limited value for project planning and should be verified with confirmatory inspection and additional sampling as necessary prior to project planning.

Materials may be impacted by age, wind/water damage, mechanical abrasion, and maintenance, renovation & demolition activities. As such, all identified (including presumed ACMs) should be periodically inspected to verify that they remain in good condition. If the identified ACMs change in condition, CES recommends that a Certified Asbestos Consultant conducts an assessment of the change in condition and provide appropriate actions to repair, enclose, remove or encapsulate the ACMs per current regulatory requirements.

At the time of the survey, the building areas were vacant. CES was able to perform a destructive investigation, but concealed conditions may exist. Additional suspect materials could be located between walls, in voids, or in other concealed areas which may have been inaccessible at the time of the survey. A survey below soil was not included in our scope of work. If any suspect materials or painted surfaces are found which have not been represented in this report, CES recommends that work stops until those materials can be sampled for asbestos and/or lead content.

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
5 | Page

6.0 LEAD SURVEY AND SAMPLING
CES conducted sampling for lead by using on-site XRF analysis and collection of bulk paint chip samples. For the purpose of this survey and inspection, lead in paint is define as described below:
• Lead-Based Paint (LBP), according to the California Childhood Lead Poisoning Prevention Branch regulations (Title 17, Division 1, Chapter 8), US Environmental Protection Agency (EPA), and US Department of Housing and Urban Development (HUD) is defined as paint or other surface coating with lead content equal to or greater than 1.0 mg/cm2 of surface area using X-Ray Fluorescence (XRF) testing or 5,000 parts per million (ppm) (0.5 percent by weight) by paint chip analysis. The County of Los Angeles Department of Public Health Services, Childhood Lead Poisoning Prevention Program, has defined “dangerous levels of lead-bearing substances” as paint or other surface coating with lead content greater than 0.7 mg.cm2 (Los Angeles County). Lead related work impacting LBP is subject to the requirements of all the above-mentioned regulations, furthermore, when disturbed for construction purposes, the work is also subject to the Cal/OSHA Title 8 CCR, Section 1532.1(d) requirements. • Lead-Containing Paints (LCP) according to Cal/OSHA Title 8 CCR, Section 1532.1(d) are defined as paints reported with any detectable levels of lead by paint chip analysis, this may include lead paint samples reported by the laboratory below the laboratory “Reporting Limit” (RL). Employer who has a workplace or operation covered by this standard shall initially determine if any employee may be exposed to lead at or above the action level. The employer shall assure that no employee is exposed to lead at concentrations greater than fifty micrograms per cubic meter of air (50µg/m3) averaged over an 8-hour period.

6.1 Lead Paint Chip Sampling Protocol
CES conducted an assessment and collected bulk paint chip samples of representative accessible painted surfaces observed in the areas included in our scope of work.

The paint chip samples were also collected to determine the weight percent concentration in the painted surfaces for construction safety as defined by Title 8 CCR Section 1532.1. Paint chip samples analysis was conducted as per EPA Method SW846/7420 by a laboratory accredited by the Environmental Laboratory Accreditation Program.

Limited survey consisted of the following:
• Visual assessment of painted surfaces
• On-site direct reading analysis of suspect lead coated surfaces and paints • Collection of bulk paint chip samples down to the substrate • Documentation of the physical condition and location of suspect materials • Submitting bulk paint chip samples to a laboratory for analysis on lead content • Preparing a report of findings and conclusions.

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
6 | Page

6.2 LEAD-BASED PAINT USING PAINT CHIP SAMPLING
Table II: Summary of Lead Based Paint
Table III: Results of Lead Containing Paints
Sample No. Color Substrate Component Location Level of Lead (ppm) Condition
PC-1 Dark grey Ceramic Wall Basement- Men & Women
Restroom <40 Intact
PC-2 Beige Drywall Wall 1st Floor- Room 1-6, 1-2, 1-4 <47 Intact PC-3 White Concrete Wall All exterior columns and walls <49 Intact PC- 4 White Drywall Wall 1st Floor & Basement- areas
throughout <49 Intact
PC- 5 White Sand plaster Wall Basement- Room B1, B9 57 Intact PC-6 White Metal Vent Basement- Throughout near vents 150 Intact PC-7 White Smooth plaster Wall Basement- Areas throughout 250 Intact PC-8 White Stucco Wall Basement- Room B10 91 Intact
PC-9 White Metal Duct Basement- Room B5- ducts and
pipes 590 Intact
PC-10 White Concrete Wall Basement- 1st Floor areas, interior walls 72 Intact
PC-11 White Metal Door casing Basement- Areas throughout, Doors and Door Casings 4,700 Intact
CES recommends that all paints listed in table III above be handled as a LCP. LCP, according to Cal/OSHA Title 8 CCR, Section 1532.1(d) are defined as paints reported with any detectable levels of lead by paint chip analysis. When disturbed for construction purposes, these surfaces are subject to Cal/OSHA exposure assessment requirements.

6.4 Lead Recommendations
Lead-containing paint (LCP) listed in Tables III above, for construction purposes, workers who disturb surfaces with LCP are subject to regulation under Title 8 CCR, Section 1532.1 (d).

Employer who has a workplace or operation covered by this standard shall initially determine if any employee may be exposed to lead at or above the action level. The employer shall assure that no employee is exposed to lead at concentrations greater than fifty micrograms per cubic meter of air (50µg/m3) averaged over an 8-hour period. If the exposure levels are likely or exceed the Permissible Exposure levels (PEL), or if a Lead Abatement Hazard is being conducted, the work may also be subject to the California Childhood Lead Poisoning Prevention Branch regulations (Title 17, Division 1, Chapter 8) which requires certifications of workers and project supervisors.

CES recommends that engineering controls, respiratory protection and personal protective equipment be used at the start of any project that disturbs painted surfaces until compliance with 1532.1 can be documented through the use of representative air sampling data.

Sample
No. Color Substrate Component Location Level of Lead (ppm) Condition No Lead-Based Paint was detected in the paint chip samples collected based on the limitations of the analytical method

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
7 | Page

6.6 Lead Waste Disposal
For painted surfaces reported as lead containing paints listed in Tables III above, waste characterization sampling will be required prior to waste disposal. The waste shall be segregated into separate waste streams. A sufficient number of samples should be collected to adequately characterize the waste stream. Sample analysis will include at a minimum, Total Threshold Limit Concentration (TTLC), Soluble Threshold Limit Concentration (STLC) and Toxicity Characteristic Leaching Procedure (TCLP) to determine if waste is non-hazardous, RCRA or California hazardous waste in accordance with regulations in the state of California.

7.0 LIMITATIONS
The South Coast Air Quality Management District requires that a current asbestos survey be conducted on any building where renovations or demolition will occur regardless of the date of construction.

The intent of this survey was to identify accessible ACM, LBP, and LCP.

The survey is intended to be used for construction purposes only. The user of this report shall verify any discrepancy which may be discovered during the project regarding the results listed Table I, II and III in this report and comparing them to the laboratory results found in Appendix B and D.

CES conducted the survey with the standard of care ordinarily exercised by qualified and reputable members of the environmental/industrial hygiene profession based on conditions and practices observed at the property and information provided to CES related to the project and/or purpose of the survey at the time of the investigation. Although the survey was comprehensive there may be areas and materials which may have been inaccessible at the time of the survey.

If any materials are discovered during the project which are not included in this report, the work should stop and a survey of those areas and materials should be conducted prior to any renovation, maintenance, demolition, or other activity that may cause disturbance to the materials.

This report does not intend to identify all hazards or unsafe practices, nor to indicate that other hazards or unsafe conditions have been identified. As such, CES does not guarantee or warrant that the facility or workplace is safe; nor does CES’s involvement in this property relieve the Client, building owner/operator or tenant of any continuing responsibility of providing a safe facility or living space.

CES has applied our best effort to locate all suspect ACMs, LBP, and LCP in the areas included in our survey scope of work.

Below floor slabs areas or other areas determined by CES’s personnel as unsafe to access, were not included in this survey scope of work.

CES interpreted the results provided by the laboratory analysis and compared the results to the relevant regulatory levels. We have relied on the laboratory to conduct the quality controls required for the analysis, as required to maintain their accreditation. It is our understanding that the laboratory QA/QC limits were within the acceptable levels for the samples analyzed.

LIMITED ASBESTOS AND LEAD SURVEY REPORT
CHASE BANK- 2501 WEST ROSECRANS AVENUE
GARDENA, CALIFORNIA 90247
8 | Page
The analyzing laboratory quantifies asbestos concentrations by calibrated visual estimation using standard PLM methodology, with detection of asbestos is material/matrix dependent.

Detection of trace asbestos (<1%) may not be reliable or reproducible by PLM and percentage of asbestos weight cannot be determined with standard PLM methodology. Confirmation of asbestos concentrations within complex matrices (i.e. plaster, gypsum wallboard/taping/joint compounds, stucco, resilient flooring, roofing) or when asbestos concentrations are 1% or less may warrant additional analysis by PLM point counting, gravimetric reduction or Transmission Electron Microscopy for proper characterization of asbestos-containing materials and/or wastestream analysis.

We will not accept any liability for loss, injury claim, or damage arising directly or indirectly from any use or reliance on this report, expressed or implied.

CES does not guarantee or warrant that the facility or workplace is safe; nor does CES’s involvement in this property relieve the Client, building owner/operator or tenant of any continuing responsibility of providing a safe facility or living space.

This report was based on those conditions observed on the day the field evaluation was accomplished. In the event that changes in the nature of the property have occurred, or additional relevant information about the property is subsequently discovered, the findings contained in this report may not be valid unless these changes and additional relevant information are reviewed, and the conclusion of this report is modified and verified in writing.

Material quantities included in this report are of observed material and provided as a best estimate for information only and shall not be used as a reliable quantity by any contractor for preparing removal bids. The Contractor shall be solely responsible for assessing the type, extent, and quantity of material to be removed in each area of the project in preparing each project bid.

The property owner is responsible for ensuring that the information, conclusions, and recommendations disclosed in this report are brought to the attention of all appropriate staff, contractors, regulatory agencies etc. as required.

CES excluded sampling of wood, metal, concrete, asphalt paving, ceramic materials on walls and floors. Based on industry practices and standardized sampling protocols, these materials are not known to contain asbestos and, therefore, not considered to be suspect asbestoscontaining materials for this survey.

If you have any questions or concerns, feel free to contact the undersigned at the number listed below.

This report was prepared by: This report was reviewed by:

Fabian Ruvalcaba Elmer Ivan Castro
Project Manager Senior Project Manager
CES Environmental Consultants, Inc. CES Environmental Consultants, In

APPENDIX A:

SUMMARY OF ASBESTOS BULK SAMPLES, ANALYTICAL DATA AND

CHAIN OF CUSTODY
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Exterior Stucco, Beige/White, Nonhomogeneous
Chrysotile
B10 East
01 LAYER 1 <1%
Quartz
Calcium Carbonate
Binder/Filler
40%
40%
20%
2145006-001
100%
Asbestos Present: Yes Total % Non-Asbestos: 100.0% Total %Asbestos: <1% Exterior Stucco, Beige/White, Nonhomogeneous
Chrysotile
B10 No. Ctr
02 LAYER 1 <1%
Quartz
Calcium Carbonate
Binder/Filler
40%
40%
20%
2145006-002
100%
Asbestos Present: Yes Total % Non-Asbestos: 100.0% Total %Asbestos: <1% Exterior Stucco, Beige/White, Nonhomogeneous
None Detected
B10 So. Ctr
03 LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
35%
50%
15%
2145006-003
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Vent Caulking, White/Gray, Nonhomogeneous
Chrysotile
B10 East
06 LAYER 1 10%
Binder/Filler 90%
2145006-004
100%
Asbestos Present: Yes Total % Non-Asbestos: 90.0% Total %Asbestos: 10.0% Vent Caulking, White/Gray, Nonhomogeneous
Chrysotile
B10 East
07 LAYER 1 10%
Binder/Filler 90%
2145006-005
100%
Asbestos Present: Yes Total % Non-Asbestos: 90.0% Total %Asbestos: 10.0% Vent Caulking, White/Gray, Nonhomogeneous
Chrysotile
B10 East
08 LAYER 1 10%
Binder/Filler 90%
2145006-006
100%
Asbestos Present: Yes Total % Non-Asbestos: 90.0% Total %Asbestos: 10.0% PAGE: 1 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Smooth Plaster, Beige/ White, Nonhomogeneous
None Detected
B1- West Ctr
09 LAYER 1
Quartz
Calcium Carbonate
Gypsum/Binder/Filler
20%
50%
30%
2145006-007
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Smooth Plaster, Beige/ White, Nonhomogeneous
None Detected
Basement Lobby- So. Ctr
10 LAYER 1
Quartz
Calcium Carbonate
Gypsum/Binder/Filler
40%
20%
40%
2145006-008
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Smooth Plaster, Beige/ White, Nonhomogeneous
None Detected
WRR No. Ctr
11 LAYER 1
Quartz
Calcium Carbonate
Gypsum/Binder/Filler
40%
20%
40%
2145006-009
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Smooth Plaster, Beige/ White, Nonhomogeneous
None Detected
MRR Ctr Ceiling
12 LAYER 1
Quartz
Calcium Carbonate
Gypsum/Binder/Filler
40%
20%
40%
2145006-010
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Smooth Plaster, Beige/ White, Nonhomogeneous
None Detected
Lobby- West Ctr
13 LAYER 1
Quartz
Calcium Carbonate
Gypsum/Binder/Filler
30%
25%
45%
2145006-011
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 2 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Sand Plaster Wall, Beige, Nonhomogeneous
None Detected
All rooms in basement- B1, B9
14 LAYER 1
Quartz
Gypsum/Binder/Filler
45%
55%
2145006-012
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sand Plaster Wall, Beige, Nonhomogeneous
None Detected
All rooms in basement- B1, B9
15 LAYER 1
Quartz
Gypsum/Binder/Filler
45%
55%
2145006-013
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sealant on Duct Seams, White,
Homogeneous
16 LAYER 1 None Detected
Vermiculite
Organic Binders/Filler
25%
75%
2145006-014
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sealant on Duct Seams, White,
Homogeneous
17 LAYER 1 None Detected
Vermiculite
Organic Binders/Filler
15%
85%
2145006-015
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sealant on Duct Seams, White,
Homogeneous
18 LAYER 1 None Detected
Vermiculite
Organic Binders/Filler
25%
75%
2145006-016
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
4" Pipe Elbow Insulation, Beige Mineral Wool Chrysotile B9- East Ctr
19 LAYER 1 15% 15%
Binder/Filler 70%
2145006-017
100%
Asbestos Present: Yes Total % Non-Asbestos: 85.0% Total %Asbestos: 15.0% PAGE: 3 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
4" Pipe Elbow Insulation, Beige Mineral Wool Chrysotile B9- East Ctr
20 LAYER 1 10% 25%
Binder/Filler 65%
2145006-018
100%
Asbestos Present: Yes Total % Non-Asbestos: 75.0% Total %Asbestos: 25.0% 4" Pipe Elbow Insulation, Beige Mineral Wool Chrysotile B9- East Ctr
21 LAYER 1 20% 15%
Binder/Filler 65%
2145006-019
100%
Asbestos Present: Yes Total % Non-Asbestos: 85.0% Total %Asbestos: 15.0% Cellulose Fiber
Fibrous Glass
4" Pipe Insulation,
Silver/Brown/Black/Yellow, Nonhomogeneous
None Detected
B9- East Ctr
22 LAYER 1 15%
70%
Bituminous Matrix 10%
2145006-020
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
4" Pipe Insulation,
Silver/Brown/Black/Yellow, Nonhomogeneous
None Detected
B9- So. Ctr
23 LAYER 1 15%
70%
Bituminous Matrix 10%
2145006-021
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
4" Pipe Insulation,
Silver/Brown/Black/Yellow, Nonhomogeneous
None Detected
B9- NE
24 LAYER 1 15%
70%
Bituminous Matrix 10%
2145006-022
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Vibration Reducer (on Duct), White, Synthetic Fiber
Homogeneous
25 LAYER 1 20% Chrysotile 60%
Binder/Filler 20%
2145006-023
100%
Asbestos Present: Yes Total % Non-Asbestos: 40.0% Total %Asbestos: 60.0% Vibration Reducer (on Duct), White, Synthetic Fiber
Homogeneous
26 LAYER 1 20% Chrysotile 60%
Binder/Filler 20%
2145006-024
100%
Asbestos Present: Yes Total % Non-Asbestos: 40.0% Total %Asbestos: 60.0% PAGE: 4 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Vibration Reducer (on Duct), White, Synthetic Fiber
Homogeneous
27 LAYER 1 20% Chrysotile 60%
Binder/Filler 20%
2145006-025
100%
Asbestos Present: Yes Total % Non-Asbestos: 40.0% Total %Asbestos: 60.0% Wollastonite
Fibrous Glass
Valve Cap Insulation, White,
Homogeneous
28 LAYER 1 15% None Detected
5%
Binder/Filler 80%
2145006-026
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Wollastonite
Fibrous Glass
Valve Cap Insulation, White,
Homogeneous
29 LAYER 1 15% None Detected
5%
Binder/Filler 80%
2145006-027
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Wollastonite
Fibrous Glass
Valve Cap Insulation, White,
Homogeneous
30 LAYER 1 15% None Detected
5%
Binder/Filler 80%
2145006-028
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
4" Cove Base, Black, Homogeneous None Detected
1-3 East Ctr
31A LAYER 1
Vinyl Binder/ Filler 100%
2145006-029
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Tan, Homogeneous None Detected
1-3 East Ctr
31B LAYER 1
Organic Binders 100%
2145006-030
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 5 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
4" Cove Base, Black, Homogeneous None Detected
1-0 at East Entry to 1-4
32A LAYER 1
Vinyl Binder/ Filler 100%
2145006-031
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Cream, Homogeneous None Detected
1-0 at East Entry to 1-4
32B LAYER 1
Organic Binders/Filler 100%
2145006-032
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
4" Cove Base, Black, Homogeneous None Detected
Basement Lobby at Entry to B3
33A LAYER 1
Calcium Carbonate
Vinyl Binder
40%
60%
2145006-033
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, White, Homogeneous None Detected
Basement Lobby at Entry to B3
33B LAYER 1
Organic Binders/Filler 100%
2145006-034
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Cork Ceiling Tile, Dk. Brown,
Homogeneous
None Detected
Lobby- East Ctr
34A LAYER 1
Non-Fibrous Material 100%
2145006-035
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Dk. Brown, Homogeneous None Detected
Lobby- East Ctr
34B LAYER 1
Organic Binders/Filler 100%
2145006-036
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 6 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
12"x12" Cork Ceiling Tile, Dk. Brown,
Homogeneous
None Detected
Lobby- West Ctr
35A LAYER 1
Non-Fibrous Material 100%
2145006-037
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Dk. Brown, Homogeneous None Detected
Lobby- West Ctr
35B LAYER 1
Organic Binders/Filler 100%
2145006-038
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Cork Ceiling Tile, Dk. Brown,
Homogeneous
None Detected
Lobby- B4 So. Ctr
36A LAYER 1
Non-Fibrous Material 100%
2145006-039
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Dk. Brown, Homogeneous None Detected
Lobby- B4 So. Ctr
36B LAYER 1
Organic Binders/Filler 100%
2145006-040
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Ceramic Tile, Burgundy,
Homogeneous
None Detected
1-0 West
37A LAYER 1
Non-Fibrous Material 100%
2145006-041
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Gray, Non-homogeneous None Detected
1-0 West
37B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
50%
40%
10%
2145006-042
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 7 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Ceramic Tile, Burgundy,
Homogeneous
None Detected
1-0 East
38A LAYER 1
Non-Fibrous Material 100%
2145006-043
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Gray, Non-homogeneous None Detected
1-0 East
38B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
40%
45%
15%
2145006-044
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Ceramic Tile, Burgundy,
Homogeneous
None Detected
Basement Lobby- SE
39A LAYER 1
Non-Fibrous Material 100%
2145006-045
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Gray, Non-homogeneous None Detected
Basement Lobby- SE
39B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
40%
45%
15%
2145006-046
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Stair Tread, Black, Homogeneous None Detected
1st Fl. Top Landing
40A LAYER 1
Vinyl Binder/ Filler 100%
2145006-047
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow/White, Nonhomogeneous
None Detected
1st Fl. Top Landing
40B LAYER 1
Organic Binders/Filler 100%
2145006-048
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 8 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Stair Tread, Black, Homogeneous None Detected
1st Fl. Middle Landing
41A LAYER 1
Vinyl Binder/ Filler 100%
2145006-049
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow/White, Nonhomogeneous
None Detected
1st Fl. Middle Landing
41B LAYER 1
Organic Binders/Filler 100%
2145006-050
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Stair Tread, Black, Homogeneous None Detected
Basement Bottom Landing
42A LAYER 1
Vinyl Binder/ Filler 100%
2145006-051
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow/White, Nonhomogeneous
None Detected
Basement Bottom Landing
42B LAYER 1
Organic Binders/Filler 100%
2145006-052
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Floor Tile, White,
Homogeneous
None Detected
1-2 So. Ctr (Bottom Layer)
43A LAYER 1
Calcium Carbonate
Vinyl Binder
60%
40%
2145006-053
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue (w/ leveling compound),
Yellow/Gray, Non-homogeneous
None Detected
1-2 So. Ctr (Bottom Layer)
43B LAYER 1
Organic Binders/Filler 100%
2145006-054
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 9 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
12"x12" Floor Tile, White,
Homogeneous
None Detected
1-4 West Ctr (Bottom Layer)
44A LAYER 1
Calcium Carbonate
Vinyl Binder
60%
40%
2145006-055
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue (w/ leveling compound),
Yellow/Gray, Non-homogeneous
None Detected
1-4 West Ctr (Bottom Layer)
44B LAYER 1
Organic Binders/Filler 100%
2145006-056
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Floor Tile, White (Beige), Cellulose Fiber
Homogeneous
None Detected
Basement B3- No. Ctr
45A LAYER 1 5%
Calcium Carbonate
Vinyl Binder
60%
35%
2145006-057
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow, Homogeneous None Detected
Basement B3- No. Ctr
45B LAYER 1
Organic Binders 100%
2145006-058
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Drywall, White, Homogeneous Cellulose Fiber None Detected 1-0 at Entry to 1-4
46A LAYER 1 <1%
Gypsum/Filler 100%
2145006-059
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mud, Brown/Cream, Non- Fibrous Glass
homogeneous
None Detected
1-0 at Entry to 1-4
46B LAYER 1 <1%
Mica
Calcium Carbonate
Binder/Filler
5%
80%
15%
2145006-060
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 10 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Cellulose Fiber
Fibrous Glass
Drywall, White/ Brown, Nonhomogeneous
None Detected
1-3 East Ctr
47A LAYER 1 10%
<1
Gypsum/Filler 90%
2145006-061
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mud, Beige/White, Non-homogeneous None Detected
1-3 East Ctr
47B LAYER 1
Mica
Calcium Carbonate
Binder/Filler
5%
80%
15%
2145006-062
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
Drywall, White/ Brown, Nonhomogeneous
None Detected
1-1 West Ctr
48A LAYER 1 10%
<1
Gypsum/Filler 90%
2145006-063
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mud, Beige/White, Non-homogeneous None Detected
1-1 West Ctr
48B LAYER 1
Mica
Calcium Carbonate
Binder/Filler
10%
75%
15%
2145006-064
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
Drywall, White/ Brown, Nonhomogeneous
None Detected
Basement- MRR- NW
49A LAYER 1 5%
<1
Gypsum/Filler 95%
2145006-065
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 11 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Mud, White, Homogeneous None Detected
Basement- MRR- NW
49B LAYER 1
Calcium Carbonate
Gypsum
70%
30%
2145006-066
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
Drywall, White/ Brown, Nonhomogeneous
None Detected
Basement- B2- No. Ctr
50A LAYER 1 15%
<1
Gypsum/Filler 85%
2145006-067
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mud, White/Yellow, Non-homogeneous Fibrous Glass None Detected Basement- B2- No. Ctr
50B LAYER 1 5%
Calcium Carbonate
Gypsum
65%
30%
2145006-068
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
2'x4' Pinhole Ceiling Panel, White/
Beige, Non-homogeneous
None Detected
1-6- Ctr
51 LAYER 1 40%
15%
Perlite
Binder/Filler
40%
5%
2145006-069
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
2'x4' Pinhole Ceiling Panel, White/
Beige, Non-homogeneous
None Detected
1-6- So. Ctr
52 LAYER 1 40%
15%
Perlite
Binder/Filler
40%
5%
2145006-070
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 12 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Cellulose Fiber
Fibrous Glass
2'x4' Pinhole Ceiling Panel, White/
Beige, Non-homogeneous
None Detected
MRR- West Ctr
53 LAYER 1 40%
15%
Perlite
Binder/Filler
40%
5%
2145006-071
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
6" Cove Base, Black (Dk. Brown),
Homogeneous
54A LAYER 1 None Detected
Vinyl Binder/ Filler 100%
2145006-072
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
54B Glue, Cream, Homogeneous LAYER 1 None Detected
Organic Binders/Filler 100%
2145006-073
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
6" Cove Base, Black (Dk. Brown),
Homogeneous
55A LAYER 1 None Detected
Vinyl Binder/ Filler 100%
2145006-074
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
55B Glue, Cream, Homogeneous LAYER 1 None Detected
Organic Binders/Filler 100%
2145006-075
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
6" Cove Base, Black (Dk. Brown),
Homogeneous
56A LAYER 1 None Detected
Vinyl Binder/ Filler 100%
2145006-076
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 13 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
56B Glue, Cream, Homogeneous LAYER 1 None Detected
Organic Binders/Filler 100%
2145006-077
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Carpet Glue, Green, Homogeneous None Detected
1-0 Ctr
57A LAYER 1
Organic Binders 100%
2145006-078
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Leveling Compound, Off White,
Homogeneous
None Detected
1-0 Ctr
57B LAYER 1
Calcium Carbonate
Gypsum
80%
20%
2145006-079
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Brown, Homogeneous Animal Hair None Detected
1-0 SE
58A LAYER 1 10%
Organic Binders/Filler 90%
2145006-080
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Leveling Compound, Off White,
Homogeneous
None Detected
1-0 SE
58B LAYER 1
Calcium Carbonate
Gypsum
80%
20%
2145006-081
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Brown/Green, Non- Animal Hair
homogeneous
None Detected
B3- No. Ctr
59A LAYER 1 <1%
Organic Binders/Filler 100%
2145006-082
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 14 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Leveling Compound, Off White,
Homogeneous
None Detected
B3- No. Ctr
59B LAYER 1
Calcium Carbonate
Gypsum
80%
20%
2145006-083
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
2'x4' Fissured Ceiling Panel, White/
Beige, Non-homogeneous
60 LAYER 1 45% None Detected
20%
Perlite
Binder/Filler
30%
5%
2145006-084
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
2'x4' Fissured Ceiling Panel, White/
Beige, Non-homogeneous
61 LAYER 1 45% None Detected
20%
Perlite
Binder/Filler
30%
5%
2145006-085
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
2'x4' Fissured Ceiling Panel, Beige,
Homogeneous
62 LAYER 1 50% None Detected
20%
Perlite 30%
2145006-086
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sand Plaster Wall, Beige/ White, Nonhomogeneous
63 LAYER 1 None Detected
Quartz
Gypsum/Binder/Filler
55%
45%
2145006-087
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 15 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Sand Plaster Wall, Beige/ White, Nonhomogeneous
64 LAYER 1 None Detected
Quartz
Gypsum/Binder/Filler
55%
45%
2145006-088
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Sand Plaster Wall, Beige/ White, Nonhomogeneous
65 LAYER 1 None Detected
Quartz
Gypsum/Binder/Filler
55%
45%
2145006-089
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Acoustic Ceiling, Beige, Nonhomogeneous
None Detected
1-2- So. Ctr
66 LAYER 1
Polystyrene Foam
Calcium Carbonate
Binder/Filler
20%
60%
20%
2145006-090
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Acoustic Ceiling, Beige, Nonhomogeneous
None Detected
1-2- Ctr
67 LAYER 1
Polystyrene Foam
Calcium Carbonate
Binder/Filler
30%
50%
20%
2145006-091
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Acoustic Ceiling, Beige, Nonhomogeneous
None Detected
1-2- No. Ctr
68 LAYER 1
Polystyrene Foam
Calcium Carbonate
Binder/Filler
30%
50%
20%
2145006-092
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 16 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
12"x12" Random Hole Ceiling Tile, Fibrous Glass
White/Yellow, Non-homogeneous
None Detected
1-5- at Entry Ctr
69A LAYER 1 85%
Binder/Filler 15%
2145006-093
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mastic, Black, Homogeneous Chrysotile
1-5- at Entry Ctr
69B LAYER 1 20%
Bituminous Matrix 80%
2145006-094
100%
Asbestos Present: Yes Total % Non-Asbestos: 80.0% Total %Asbestos: 20.0% 12"x12" Random Hole Ceiling Tile, Fibrous Glass
White/Yellow, Non-homogeneous
None Detected
1-5- East
70A LAYER 1 95%
Binder/Filler 5%
2145006-095
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mastic, Black, Homogeneous Chrysotile
1-5- East
70B LAYER 1 20%
Bituminous Matrix 80%
2145006-096
100%
Asbestos Present: Yes Total % Non-Asbestos: 80.0% Total %Asbestos: 20.0% 12"x12" Random Hole Ceiling Tile, Fibrous Glass
White/Yellow, Non-homogeneous
None Detected
1-5- West
71A LAYER 1 90%
Binder/Filler 10%
2145006-097
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mastic, Black, Homogeneous Chrysotile
1-5- West
71B LAYER 1 20%
Bituminous Matrix 80%
2145006-098
100%
Asbestos Present: Yes Total % Non-Asbestos: 80.0% Total %Asbestos: 20.0% Cellulose Fiber
Fibrous Glass
Gypsum Wall Panels, White/ Brown,
Non-homogeneous
None Detected
1-6- No. Ctr
72 LAYER 1 10%
<1
Mica
Gypsum/Filler
5%
85%
2145006-099
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 17 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Cellulose Fiber
Fibrous Glass
Gypsum Wall Panels, White/ Brown,
Non-homogeneous
None Detected
1-6- NW
73 LAYER 1 10%
<1
Mica
Gypsum/Filler
5%
85%
2145006-100
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Fibrous Glass
Gypsum Wall Panels, White/ Brown,
Non-homogeneous
None Detected
1-6- So. Ctr
74 LAYER 1 10%
<1
Mica
Gypsum/Filler
5%
85%
2145006-101
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Ceramic Tile, Beige,
Homogeneous
None Detected
1-0- West
75A LAYER 1
Non-Fibrous Material 100%
2145006-102
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar/Grout, White, Homogeneous None Detected
1-0- West
75B LAYER 1
Quartz
Calcium Carbonate
40%
60%
2145006-103
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Ceramic Tile, Beige,
Homogeneous
None Detected
1-0- East
76A LAYER 1
Non-Fibrous Material 100%
2145006-104
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar/Grout, White, Homogeneous None Detected
1-0- East
76B LAYER 1
Quartz
Calcium Carbonate
40%
60%
2145006-105
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 18 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
12"x12" Ceramic Tile, Beige,
Homogeneous
None Detected
1-0- Ctr
77A LAYER 1
Non-Fibrous Material 100%
2145006-106
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar/Grout, White, Homogeneous None Detected
1-0- Ctr
77B LAYER 1
Quartz
Calcium Carbonate
40%
60%
2145006-107
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Floor Glue, Green/ Black, Non- Cellulose Fiber
homogeneous
78 LAYER 1 <1% None Detected
Bituminous Matrix
Organic Binders
10%
90%
2145006-108
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Cellulose Fiber
Synthetic Fiber
Floor Glue, Green/ Black, Nonhomogeneous79 LAYER 1 <1% None Detected <1
Bituminous Matrix
Organic Binders
10%
90%
2145006-109
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Floor Glue, Green/ Black, Non- Cellulose Fiber
homogeneous
80 LAYER 1 <1% None Detected
Bituminous Matrix
Organic Binders
15%
85%
2145006-110
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Door/Window Caulking, Colorless,
Homogeneous
None Detected
East Ctr
81 LAYER 1
Silicone-like material 100%
2145006-111
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 19 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Door/Window Caulking, Colorless,
Homogeneous
None Detected
West Ctr
82 LAYER 1
Silicone-like material 100%
2145006-112
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Door/Window Caulking, Colorless,
Homogeneous
None Detected
SW
83 LAYER 1
Silicone-like material 100%
2145006-113
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Floor Caulking, Gray, Homogeneous None Detected
East Ctr
84 LAYER 1
Organic Binders/Filler 100%
2145006-114
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Floor Caulking, Gray, Homogeneous None Detected
West Ctr
85 LAYER 1
Organic Binders/Filler 100%
2145006-115
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Floor Caulking, Gray, Homogeneous None Detected
SW
86 LAYER 1
Organic Binders/Filler 100%
2145006-116
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Floor Tile, White,
Homogeneous
None Detected
So. Ctr 1-2
87A LAYER 1
Calcium Carbonate
Vinyl Binder
65%
35%
2145006-117
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 20 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Glue, Yellow, Homogeneous None Detected
So. Ctr 1-2
87B LAYER 1
Organic Binders 100%
2145006-118
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Floor Tile, White,
Homogeneous
None Detected
No. Ctr 1-4
88A LAYER 1
Calcium Carbonate
Vinyl Binder
65%
35%
2145006-119
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow, Homogeneous None Detected
No. Ctr 1-4
88B LAYER 1
Organic Binders 100%
2145006-120
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:
12"x12" Floor Tile, White,
Homogeneous
None Detected
East Ctr 1-2
89A LAYER 1
Calcium Carbonate
Vinyl Binder
65%
35%
2145006-121
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Glue, Yellow, Homogeneous None Detected
East Ctr 1-2
89B LAYER 1
Organic Binders 100%
2145006-122
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Light Gray, Non-homogeneous None Detected
Men's RR Ctr East
90A LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
50%
35%
15%
2145006-123
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 21 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Grout, Dark Gray, Homogeneous None Detected
Men's RR Ctr East
90B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
10%
70%
20%
2145006-124
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Light Gray, Non-homogeneous None Detected
Men's RR Ctr East
91A LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
50%
35%
15%
2145006-125
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Grout, Dark Gray, Homogeneous None Detected
Men's RR Ctr East
91B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
10%
70%
20%
2145006-126
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Mortar, Light Gray, Non-homogeneous None Detected
Women's RR East Ctr
92A LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
50%
35%
15%
2145006-127
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Grout, Dark Gray, Homogeneous None Detected
Women's RR East Ctr
92B LAYER 1
Quartz
Calcium Carbonate
Binder/Filler
10%
70%
20%
2145006-128
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 22 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Gravel Roof- Felt/Tar (multilayer), Fibrous Glass
Black, Non-homogeneous
None Detected
No. Ctr
93A LAYER 1 20%
Bituminous Matrix 80%
2145006-129
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Lt. Weight Concrete, Beige,
Homogeneous
None Detected
No. Ctr
93B LAYER 1
Vermiculite
Binder/Filler
40%
60%
2145006-130
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Gravel Roof- Felt/Tar (multilayer), Fibrous Glass
Black, Non-homogeneous
None Detected
Ctr
94A LAYER 1 20%
Bituminous Matrix 80%
2145006-131
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Light Weight Concrete, Beige,
Homogeneous
None Detected
Ctr
94B LAYER 1
Vermiculite
Calcium Carbonate
40%
60%
2145006-132
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Gravel Roof- Felt/Tar (multilayer), Fibrous Glass
Black, Non-homogeneous
None Detected
So. Ctr
95A LAYER 1 20%
Bituminous Matrix 80%
2145006-133
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

Light Weight Concrete, Beige,
Homogeneous
None Detected
So. Ctr
95B LAYER 1
Vermiculite
Calcium Carbonate
40%
60%
2145006-134
100%
Asbestos Present: No No Asbestos
Detected
Total % Non-Asbestos: 100.0% Total %Asbestos:

PAGE: 23 of 24
Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
07/09/2021
07/12/2021
07/01/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145006
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number
Total Samples 137
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Roof Mastic, Gray, Homogeneous Chrysotile
No. Ctr on Vent
96 LAYER 1 8%
Bituminous Matrix/Filler 92%
2145006-135
100%
Asbestos Present: Yes Total % Non-Asbestos: 92.0% Total %Asbestos: 8.0% Roof Mastic, Gray, Homogeneous Chrysotile
NE on Vent
97 LAYER 1 8%
Bituminous Matrix/Filler
Metallic Paint
85%
7%
2145006-136
100%
Asbestos Present: Yes Total % Non-Asbestos: 92.0% Total %Asbestos: 8.0% Roof Mastic, Gray/ Black, Non- Fibrous Glass
homogeneous
Chrysotile
NW on Drain
98 LAYER 1 20% 5%
Quartz/Gravel
Bituminous Matrix/Filler
15%
60%
2145006-137
100%
Asbestos Present: Yes Total % Non-Asbestos: 95.0% Total %Asbestos: 5.0% Method Detection Limit: Less than one percent (<1%). Asbestos content has been determined using calibrated visual estimation (CVES). Samples tested were received in acceptable condition unless otherwise stated. Test report relates only to items tested. Non-homogeneous samples containing discrete and separable layers are analyzed and reported separately; composite results may be reported upon customer's request. Non-homogeneous samples with inseparable layers are analyzed and reported as composite samples. Due to the limitations of Polarized Light Microscopy, samples reported as None Detected or with low asbestos concentrations may not be reliable and further analysis such as TEM is recommended to confirm PLM results. This report shall not be reproduced except in full without the written approval of this laboratory. This report may not be used by the customer to claim product certification, endorsement, or approval by NIST/NVLAP or any agency of the government. Samples shall be disposed according to local, state and federal laws, 30 days after results are reported unless otherwise instructed.

Approved Signatory Cristina E. Tabatt TESTING
NVLAP Lab Code 500044-0
CA-ELAP #2823
Analyst - Cristina Tabatt
PAGE: 24 of 24
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Layer No.

Layer %
Asbestos
Type
Non-Asbestos
Components
Test Report
Laboratory ID
Sample No.

Sample Location
Description (%) (%)
Method of Analysis
Cesar Ruvalcaba
6741 Friends Avenue, Suite B
Whittier CA 90601
CES Environmental Consultants, Inc.
08/26/2021
08/26/2021
08/24/2021
Date Analyzed
Date Reported
Date Received
Attn.:

Report Number 2145563
Project Number
2501 W. Rosecrans- Chase Bank
Project Name City of Gardena
WO Number
06/30/2021
Location
Date Sampled
Sampled By Cesar Ruvalcaba
PO Number PLM Ref. #2145006
Total Samples 2
1508 East 33rd Street
Signal Hill, CA 90755
Toll: 888-207-2022
Tel: 562-206-2770
Fax: 562-206-2773
40 CFR Part 763 Appendix E to Subpart E, EPA Method 600/M4-82-020; updated method 600 R-93/116 Determination of Asbestos in Bulk Building Materials.

LLC
Exterior Stucco, Beige/White, Nonhomogeneous
Chrysotile
B10 East
01 LAYER 1 <0.10%
Acid Soluble Material
Organic/Volatile Material
Non-Asbestos Residue

34.67%

7.57%

57.76%
2145563-001
100%
1000 pt. POINT COUNT
Asbestos Present: Yes Total % Non-Asbestos: 100.0% Total %Asbestos: <0.10% Exterior Stucco, Beige/White, Nonhomogeneous
Chrysotile
B10 No. Ctr
02 LAYER 1 <0.10%
Acid Soluble Material
Organic/Volatile Material
Non-Asbestos Residue

38.69%

8.49%

52.82%
2145563-002
100%
1000 pt. POINT COUNT
Asbestos Present: Yes Total % Non-Asbestos: 100.0% Total %Asbestos: <0.10% Method Detection Limit: One tenth of one percent (0.10%). Asbestos content has been determined using the point count method. Samples tested were received in acceptable condition unless otherwise stated. Test report relates only to items tested. Non-homogeneous samples containing discrete and separable layers are analyzed and reported separately; composite results may be reported upon customer's request. Non-homogeneous samples with inseparable layers are analyzed and reported as composite samples. Due to the limitations of Polarized Light Microscopy, samples reported as None Detected or with low asbestos concentrations may not be reliable and further analysis such as TEM is recommended to confirm PLM results. This report shall not be reproduced except in full without the written approval of this laboratory. This report may not be used by the customer to claim product certification, endorsement, or approval by NIST/NVLAP or any agency of the government. Samples shall be disposed according to local, state and federal laws, 30 days after results are reported unless otherwise instructed.

Approved Signatory Cristina E. Tabatt
Note: EPA 400 point count extended to 1000 points to meet the Cal OSHA regulatory limit of 0.10%.

TESTING
NVLAP Lab Code 500044-0
CA-ELAP #2823
Analyst - Cristina Tabatt
Point Count was used in laboratory analysis. PAGE: 1 of 1 APPENDIX B:

SUMMARY OF BULK PAINT SAMPLES, ANALYTICAL DATA, CHAIN OF CUSTODY, AND CDPH FORM 8552
1508 East 33rd Street
Signal Hill, CA 90755
Tel (562) 206-2770
Fax (562) 206-2773
CES Environmental Consultants, Inc. Project Number:
6741 Friends Avenue, Suite B Project Name: City of Gardena Whittier, CA 90601 Location: 2501 W. Rosecrans
Attn: Cesar Ruvalcaba Chase Bank
Report Number: 2145004A
Date Received: 7/1/2021 Date Sampled: 6/30/2021
Date Analyzed: 7/9/2021 Sampled By: Cesar Ruvalcaba
Date Reported: 7/9/2021 Total Samples: 1
Analytical Method: EPA 7420/3050
Reporting Limit: 20 µg
TTLC - Lead (Pb) in Solids by Flame AAS
Lab ID Sample Weight Lead Concentration
Client ID (g) ppm (mg/kg)
2145004A-001
PC1
CA ELAP Cert #2823
Approved Signatory- Cristina E. Tabatt
Samples tested were received in acceptable condition unless otherwise stated. Test report relates only to items tested. This report shall not be reproduced without the written approval of this laboratory. The client shall be solely responsible for interpreting analytical results.

Samples have not been blank corrected. Samples shall be disposed according to local, state and federal laws, 30 days after reporting results.

Location/Description
Wall/Ceramic/Dk. Gray- Basement
MRR East Ctr. 0.5003 < 40
1 of 1
1508 East 33rd Street
Signal Hill, CA 90755
Tel (562) 206-2770
Fax (562) 206-2773
CES Environmental Consultants, Inc. Project Number:
6741 Friends Avenue, Suite B Project Name: City of Gardena Whittier, CA 90601 Location: 2501 W. Rosecrans
Attn: Cesar Ruvalcaba Chase Bank
Report Number: 2145004B
Date Received: 7/1/2021 Date Sampled: 6/30/2021
Date Analyzed: 7/9/2021 Sampled By: Cesar Ruvalcaba
Date Reported: 7/9/2021 Total Samples: 10
Analytical Method: EPA 7420/3050
Reporting Limit: 5.0 µg Pb
Lead (Pb) in Paint by Flame AAS
Lab ID Sample Weight Lead Concentration
Client ID (g) ppm (mg/kg)
2145004B-001
PC2
2145004B-002
PC3
2145004B-003
PC4
2145004B-004
PC5
2145004B-005
PC6
2145004B-006
PC7
2145004B-007
PC8
2145004B-008
PC9
2145004B-009
PC10
2145004B-010
PC11
CA ELAP Cert #2823
Approved Signatory- Cristina E. Tabatt

0.1068 < 47
Samples tested were received in acceptable condition unless otherwise stated. Test report relates only to items tested. This report shall not be reproduced without the written approval of this laboratory. The client shall be solely responsible for interpreting analytical results. Samples have not been blank corrected. Samples shall be disposed according to local, state and federal laws, 30 days after reporting results.

Location/Description
Wall/drywall/beige- 1st fl. 1-0 ̀
entry
Wall/concrete/white- Eterior west ̀
column ctr 0.1029 < 49
Wall/drywall/white- 1st floor- 16- ctr
east 0.1023 < 49
Wall/sand plaster/white- BasementB1 west ctr 0.1004 57 ent/metal/white- Basement B10- ̀
west 0.1028 150
Wall/smooth plaster/whiteBasement lobby- ctr east 0.1027 250 Wall/stucco/white- Basement B10
1o. ctr 0.1013 91
590
Wall/concrete/white- Basement B8
east ctr 0.1005 72
Duct/metal/white- Basement B9
So. ctr 0.1036
Door casing/metal/whiteBasement B10 # entry to B8 0.1047 4700 1 of 1
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APPENDIX C:

SAMPLE DIAGRAMS

APPENDIX D:

INSPECTOR CERTIFICATIONS
Scanned with CamScanner

INDIVIDUAL: CERTIFICATE TYPE: NUMBER: EXPIRATION DATE:

Lead Inspector/Assessor LRC-00005741 4/11/2022
Elmer Castro

STATE OF CALIFORNIA

DEPARTMENT OF PUBLIC HEALTH

LEAD-RELATED CONSTRUCTION CERTIFICATE
Disclaimer: This document alone should not be relied upon to confirm certification status. Compare the individual’s photo and name to another valid form of government issued photo identification. Verify the individual’s certification status by searching for Lead-Related Construction Professionals at www.cdph.ca.gov/programs/clppb or calling (800) 597-LEAD.

2860 Walnut Avenue, Signal Hill CA 90755 * Tel: (562) 426-7990 * Fax: (562) 426-1842

REPORT OF GEOTECHNICAL INVESTIGATION
Proposed Senior Center Facility
2509 Rosecrans Avenue
City of Gardena, California
Prepared For:

BOA Architecture, Inc.
1511 Cota Avenue
Long Beach, California 90813
Project No. 7099.22 February 22, 2023
2860 Walnut Avenue, Signal Hill CA 90755 * Tel: (562) 426-7990 * Fax: (562) 426-1842 February 22, 2023
Project No. 7099.22
BOA Architecture
1511 Cota Avenue
Long Beach, California 90813
Attention: Mr. Edward Lok Ng, Architect, LEED AP
Subject: Report of Geotechnical Investigation and Infiltration Feasibility Study Proposed Senior Center Facility
2509 Rosecrans Avenue, City of Gardena, California
Ladies and Gentlemen:

Presented herewith is the Report of Geotechnical Investigation and Infiltration Feasibility Study (the Soils Report) prepared by Associated Soils Engineering, Inc. (ASE) for the proposed new senior center facility (the Senior Center) to be located at 2509 Rosecrans Avenue, in the City of Gardena, California (the Site). This work was conducted in accordance with ASE's Proposal No. P22-154, dated November 16, 2022, which subsequently received your authorization.

The subject geotechnical investigation was planned and performed based on the relevant development information provided by your office. Provided information included As-Built Drawings, produced by BOA Architecture, dated April 4, 2022, on which was shown the layout of the existing site to be demolished.

The purpose of this study was to evaluate the subsurface soils conditions at the Site, followed by assessment of site geologic/seismic hazards, performance of engineering analyses, and formulation/assembly of recommendations for the geotechnical design and construction pertinent to the Senior Center. ASE's study has concluded that construction of the Senior Center is geotechnically feasible provided that the recommendations and design guidelines with respect to ground preparation and foundation construction presented in the Soils Report are incorporated in the project plans and design, and implemented during construction. This Soils Report also presents 1) the findings of the geotechnical field investigation, 2) the summary of potential geological/seismic hazard assessment, 3) the results of laboratory tests performed and 4) the results of field infiltration rate measurements in support of Low Impact Development (LID) on-site stormwater dispersal facility planning and design.

We at ASE appreciate the opportunity to provide our professional services on this important project, and look forward to assisting you during the construction phase of the Senior Center.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 -2-
If you have any questions or require additional information, please contact the undersigned.

Respectfully submitted,
ASSOCIATED SOILS ENGINEERING, INC.

Torin Ng, EIT Lawrence J.D. Chang, P.E, G.E.

Project Engineer Geotechnical Engineer, RGE 2881
Edward C. (Ted) Riddell, P.G.

Engineering Geologist, CEG 1775
TN/ECR/LC:tn
Distribution: (1) PDF Copy + hard copy upon request - Addressee i

TABLE OF CONTENTS
Section Page

1.0 INTRODUCTION .......................................................................................................................... 1

1.1 Project Outline ..................................................................................................................... 1

1.1.1 Building/Development Scope............................................................................................1

1.1.2 Structural Loading for Geotechnical Analyses.................................................................1

1.2 Scope of Exploration............................................................................................................. 1

2.0 SITE AND SUBSURFACE CONDITIONS.............................................................................................. 3

2.1 Location, Boundary Conditions and Existing Development.................................................... 3

2.2 Subsurface Conditions.......................................................................................................... 3

2.2.1 Artificial Fill (af) ..................................................................................................................3

2.2.2 Younger Alluvial Deposits (Qya2)......................................................................................3

2.3 Groundwater and Caving...................................................................................................... 4

2.4 Utilities ................................................................................................................................ 5

3.0 GEOLOGY....................................................................................................................................... 5

3.1 Regional Geologic Setting ..................................................................................................... 5

4.0 FAULTING AND SEISMICITY ............................................................................................................ 5

4.1 Deterministic Analysis .......................................................................................................... 6

4.2 Probabilistic Analysis............................................................................................................ 6

4.3 2022 CBC Seismic Design Parameters.................................................................................... 6

5.0 GEOLOGIC HAZARDS ...................................................................................................................... 8

5.1 Surface Fault Rupture and Ground Shaking........................................................................... 8

5.2 Seismic Hazards.................................................................................................................... 8

5.2.1 Liquefaction........................................................................................................................8

5.2.2 Seismic Settlements...........................................................................................................9

5.2.3 Earthquake-Induced Landslides ........................................................................................9

5.2.4 Lateral Spreading ...............................................................................................................9

5.2.5 Tsunamis and Seiches........................................................................................................9

5.2.6 Flood Hazards...................................................................................................................10

6.0 GEOTECHNICAL CONSIDERATIONS AND RECOMMENDATIONS .................................................10

6.1 Site Preparation.................................................................................................................. 10

6.1.1 Existing Improvements. ...................................................................................................10

6.1.2 Surface Vegetation...........................................................................................................11 ii
TABLE OF CONTENTS- continued
Section Page

6.1.3 Underground Utilities....................................................................................................................11

6.2 Site Grading........................................................................................................................ 11

6.2.1 Undocumented Fill/Disturbed Native Soils.....................................................................11

6.2.2 Expansive Soils .................................................................................................................12

6.2.3 Remedial Grading ……......................................................................................................13

6.2.4 Pumping and Heaving of Subgrade Soils.........................................................................14

6.2.5 Temporary Excavation............................................................................................... 15 a) Temporary Sloping............................................................................................... 15 b) Temporary Shoring .............................................................................................. 15

6.2.6 Exterior Slab-on-Grade/Flatwork/Pavement/Hardscape Support.................................16

6.2.7 Suitable Soils and Imported Soils ....................................................................................17

6.2.8 Backfilling and Compaction Requirements.....................................................................17

6.2.9 Tests and Observations.............................................................................................. 18

6.3 Foundation Design ............................................................................................................. 18

6.3.1 Conventional Shallow Footing Foundation................................................................ 18 a) Minimum Footing Dimension and Reinforcement. ............................................. 18 b) Allowable Soils Bearing Capacity ......................................................................... 19 c) Lateral Resistance ................................................................................................ 19 d) Static Settlements/Heaves................................................................................... 20

6.3.2 Post-Tensioned (PT) Slab for Support of the Building ............................................... 20

6.3.3 Retaining Walls .......................................................................................................... 21

6.3.4 Footing/Foundation Observation .............................................................................. 22

6.4 Slabs-On-Grade .................................................................................................................. 22

6.5 Asphaltic Concrete (AC) Flexural Pavement Design............................................................. 23

6.6 Portland Cement Concrete (PCC) Pavements ...................................................................... 25

6.7 Site Drainage ..................................................................................................................... 26

6.8 Soil Corrosivity Evaluation.................................................................................................. 26

6.8.1 Concrete Corrosion..........................................................................................................26

6.8.2 Metal Corrosion ...............................................................................................................26

6.9 Utility Trenches…................................................................................................................ 27

6.10 Plan Review, Observations and Testing...........................................................................28

7.0 FIELD PERCOLATION TEST DATA ..............................................................................................28

8.0 CLOSURE ................................................................................................................................29 APPENDIX A ...................................................................................................................................32 Site Exploration .................................................................................................................................... 32 iii
TABLE OF CONTENTS- continued
Section Page
Plate A Boring Location Plan
Plates B-1 through B-4 Field Logs of Borings
Plates B-P1 and B-P2 Field Logs of Percolation Boring
Laboratory Tests.................................................................................................................................... 33 Moisture Content and Density Tests.............................................................................................................33 Consolidation and Direct Shear Tests............................................................................................................33 Atterberg Limits Tests....................................................................................................................................33 Soil Corrosivity Tests.......................................................................................................................................33 Maximum Dry Density/Optimum Moisture Content Test............................................................................34 Expansion Test................................................................................................................................................34 R-value Analysis..............................................................................................................................................34 Plates C-1 and C-2 Uni-axial Consolidation Test Results Plates D-1 through D-3 Direct Shear Test Results
Plate E-1 Atterberg Limits Test Results
APPENDIX B – SITE FAULTING/SEISMICITY DATA
Plates I-1 and I-2 EQFAULT – Deterministic Estimation of Peak Acceleration from Digitized Faults

APPENDIX C - LIST OF REFERENCES
Site Location Map – Figure 1
Local Geologic Map – Figure 2
Local Seismic Hazard Map – Figure 3
National Flood Hazard Layer FIRMette – Figure 4
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 1

1.0 INTRODUCTION
This Soils Report presents the results of ASE's geotechnical investigation for the proposed senior center facility (the Senior Center) to be located at 2509 Rosecrans Avenue, in the City of Gardena, California (the Site). The approximate location of the Site is shown on Figure 1, Site Location Map. The purpose of this investigation was to evaluate the general subsurface soil conditions at the Site and provide geotechnical recommendations for the design and construction of the Senior Center. This Soils Report presents the summary of the data collected, the results of ASE's engineering evaluations/analyses, and the pertinent geotechnical conclusions and recommendations.

1.1 Project Outline
ASE understands that the following project information is applicable at the time of this Soils Report preparation.

1.1.1 Building/Development Scope:

Based on the provided plans and information, ASE understands that the planned development is to construct a new senior center facility, though configuration, layout and details of the Senior Center are unavailable at this time. Other appurtenant improvements are likely to include parking and access pavements, lighting, landscaping, utilities, hardscape, and accessibility upgrades.

1.1.2 Structural Loading for Geotechnical Analyses:

In the absence of structural loading information, ASE has assumed that the Senior Center will be supported by isolated pad footings and continuous spread footings, with maximum concentrated column load (dead plus live loads) on the order of 40 kips, and with a maximum line load (dead plus live loads) not exceeding 4,000 pounds per linear foot. Tolerable total and differential settlements resulted from the aforementioned structural loadings on the order of one (1) inch and one-half (1/2) inch, respectively, have also been assumed by ASE.

In anticipation of the presence of highly expansive site soils, ASE has assumed a distributed load (D+L) on the order not exceeding 1,000 psf for the geotechnical analysis related to the alternative foundation system of post-tensioned (PT) slab.

1.2 Scope of Exploration
In accomplishing the subject investigation, ASE's staff had performed the following geotechnical tasks:

A. Review of readily available background information, including in-house geotechnical data, geologic maps, seismic hazard maps, and literature relevant to the Site.

Date: February, 2023
Associated Soils Engineering, Inc.

Site Location Map
Proj. Name:

Proposed Senior Center
2509 Rosecrans Avenue, Gardena 2860 Walnut Avenue
Signal Hill, CA 90755
Figure 1
Proj. No.: 7099.22
Tel (562) 426-7990 Fax (562) 426-1842
Subject Site (12305 207th
Street, Lakewood, CA)
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 2
B. A geotechnical site reconnaissance to observe the general surficial soil conditions at the Site and to select and mark boring locations, followed by notification to Underground Service Alert of the planned boring locations 72 hours prior to field exploration.

C. Field exploration consisting of drilling four (4) exploratory borings to depths ranging from 31 feet to 51 feet 6 inches below respective existing grades. ASE staff logged and sampled representative soils encountered in each exploratory boring. Locations of the exploratory borings on site are shown on the Boring Location Plan, Plate A, in Appendix A.

D. Performance of field percolation testing at two (2) percolation testing locations (see Plate A, Soils Boring Location Map, in Appendix A), with calculated infiltration rates to be used as the basis for the design and planning of the required Low Impact Development (LID) on-site stormwater dispersal facilities. ASE’s field percolation testing was performed in accordance with the Los Angeles County – Low Impact Development BMP Design Handbook, Appendix A procedures modified to test the cross sectional zone of typical soils within the level of anticipated storm water infiltration (e.g. approximately 1 foot to 5 feet below existing grade or finished grade in the anticipated area on the Site that is to receive the LID stormwater facilities).

E. Laboratory testing on retrieved representative soil samples for classification and for determination of pertinent engineering properties.

F. Engineering analyses of data obtained from literature review, site investigation and laboratory testing covering the following aspects:
• Evaluation of general subsurface conditions and description of types, distribution, and engineering characteristics of subsurface materials.
• Assessment of geologic/seismic hazards based on the pertinent criteria required by the California Geological Survey (CGS).
• Determination of the seismic design parameters in accordance with Chapters 16 and 18 of the California Building Code, 2022 Edition (2022 CBC; Reference 6). • Evaluation of the suitability of on-site soils for foundation support, establishment of qualification criteria for on-site or imported fill material, and recommendations for site grading and subgrade preparation for the Senior Center and other ancillary improvements. • Recommendations for design of shallow footing foundations including minimum dimensions, allowable bearing capacity, estimated settlement, and lateral resistance, as well as for design of alternative PT slabs.
• Recommendations for subgrade preparation for alternative PT slabs, slabs-on-grade and flatworks.
• Recommendations for temporary excavation, shoring and trenching.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 3
• Evaluation of the corrosion and expansion potential of the on-site materials. • Calculation of design infiltration rates of site soils based on measured field percolation rates for LID stormwater facility planning and design.

G. Preparation of this Soils Report presenting the work performed and data acquired, as well as summarizing our conclusions and geotechnical recommendations related to the design and construction of the Senior Center.

Please note that ASE's geotechnical investigation did not include any evaluation or assessment of hazardous or toxic materials which may or may not exist on or beneath the Site. ASE does not consult in the field of potential site contamination/mitigation.

2.0 SITE AND SUBSURFACE CONDITIONS

2.1 Location, Boundary Conditions and Existing Development The proposed new senior center facility (the Senior Center) is to be located at 2509 Rosecrans Avenue, in the City of Gardena, California.

The Site is bound to the south and east by Rosecrans Avenue and Purche Avenue, respectively, with light commercial developments beyond. Existing multi-family residential development bounds the Site to the west, while a convalescence hospital facility bounds the Site to the north.

The Site is currently occupied by former bank building. The existing bank building is of extended single-story height, with basement level. The building is elevated above the parking lot level by approximately 2 to 3 feet. The existing building covers the approximate easterly half of the Site, with asphaltic concrete (AC) paved parking lot to the west, and access drive along the northerly perimeter connecting to Purche Avenue.

2.2 Subsurface Conditions

2.2.1 Artificial Fill (af):

Artificial fill was observed to the terminal depth in Boring B-P1. Encountered artificial fill generally consists of clay with silt, and silty sand with clay. Artificial fill may be present at other locations on the Site, or could be encountered during site grading, subject to the observation and confirmation of the Geotechnical Consultant.

2.2.2 Young Alluvial Deposits (Qya2):

Native site soils consisting of younger alluvial deposits were encountered in all of ASE’s exploratory borings below the pavement section, except in Boring B-P1, to the maximum explored depth of 51 feet 6 inches in Boring B-2. Per Reference 5, the younger alluvial deposits are characterized as ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 4
deposits associated with the valley areas which consist of soft to firm clay and clayey sand overlying dense sands and stiff clays of younger alluvium. In specific, site alluvial soils predominantly contain sandy clays, silty clays, clays, clayey silts, and sandy silts. Figure 2, Local Geologic Map, excerpted from Reference 5, shows Quaternary geology in the Site vicinity.

Blow counts recorded from advancing Modified California barrel sampler empirically indicate that the native, cohesive, alluvial materials were generally moderately stiff to hard in consistency and damp to very moist in moisture content within the explored depths, at the time of ASE’s site investigation.

More detailed descriptions of soils encountered and conditions observed during the subsurface exploration are shown in the Field Logs of Boring and Field Logs of Percolation Boring, in Appendix A, together with information including soil classifications, depths and types of soil samples, blow counts, field dry densities and moisture contents, and corresponding laboratory tests performed.

2.3 Groundwater and Caving
During field exploration, groundwater was encountered within Borings B-1 through B-4 at depths of 22, 20, 25 and 30 feet below existing grade, respectively. Published data in Reference 5 indicates a historic high groundwater between approximately 20 and 30 feet in the Site vicinity. The Site elevation is approximately 43 to 44 feet above Mean Sea Level (MSL) per Google Earth.

Information from the State of California Water Resources Control Board Geotracker website (http://geotracker.waterboards.ca.gov) indicates that the groundwater elevation in groundwater monitoring well MW-1, located near the south of Rosecrans Avenue between Purche Avenue and Van Ness Avenue (Master Sun Cleaners (Former): 2405 Rosecrans Avenue – less than 1/8 mile southeast of the Site), was 18.61 feet below grade on May 25, 2005. The ground surface elevation at this well location per Google Earth is approximately 43 feet above MSL, which is approximately the same as site grades. The depth to groundwater for the most recent reading in this well (taken December 15, 2015) was 18.61 feet.

Please note that seasonal and long-term fluctuations in the groundwater may occur as a result of variations in subsurface conditions, rainfall, run-off conditions and other factors. Therefore, variations in groundwater levels from the short-term observations made in ASE’s exploratory borings cannot be ruled out. Please note that ASE’s exploratory borings were not meant for groundwater monitoring purpose.

While the use of hollow-stem augers during drilling precluded observation of potential caving conditions, caving and/or sloughing was not noticed during the extraction of auger stem at the completion of drilling operations. However, caving and/or soil sloughing could not be totally ruled out in excavations greater in dimension/depth than ASE’s exploratory borings.

Project:

Qya2
Proj. No.: 7099.22 Date: February, 2023
(Partial Extract of the Quaternary Geologic Map of the Inglewood 7.5-Minute Quadrangle,California Division of Mines and Geology,Seismic Hazard Zone Report 027, 1998) LEGEND
Approximate Site Location Associated Soils Engineering, Inc.

Proposed Senior Center
2509 Rosecrans Avenue, Gardena
2860 Walnut Avenue
Figure 2 Local Geologic Map
Younger Alluvium- soft to firm clay and
clayey sand overlying older alluvium
Signal Hill, CA 90755
Tel (562) 426-7990 Fax (562) 426-1842
Subject Site
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 5

2.4 Utilities
No overhead or underground utilities were disturbed during the course of ASE's site exploration. However, overhead and underground utilities were present at the Site, as well as along some site perimeters and nearby streets, at the time of ASE’s site investigation. Other utilities, though not known at the time of this report preparation, may be present on site, and should be located prior to the start of site grading work.

3.0 GEOLOGY

3.1 Regional Geologic Setting
The Site is located in the Central Block of the Los Angeles Basin. The Los Angeles Basin is a large northwest trending synclinal depression at the southern end of the Transverse Ranges and at the northwestern end of the Peninsula Range geomorphic Provinces of California. The Central Block is bounded by the active Newport-Inglewood Fault Zone (located 2.2 mile (3.5 km) southwest of the Site) and the active Whittier Fault Zone (approximately 18.3 miles (29.4 km) northeast of the Site).

4.0 FAULTING AND SEISMICITY
Gardena, like the rest of southern California, is located within a seismically active region as a result of being located near the active margin between the North American and Pacific tectonic plates. The principal source of seismic activity is movement along the northwest-trending regional faults such as the San Andreas, San Jacinto, Newport-Inglewood and Whittier-Elsinore fault zones.

By the definition of CGS, an active fault is one which has had surface displacement within the Holocene Epoch (roughly the last 11,000 years). The CGS has defined a potentially active fault as any fault which has been active during the Quaternary Period (approximately the last 1,600,000 years). These definitions are used in delineating Earthquake Fault Zones as mandated by the Alquist-Priolo Geologic Hazard Zones Act of 1972 and as subsequently revised in 1997 as the Alquist-Priolo Earthquake Fault Zoning Act and Earthquake Fault Zones. The intent of the act is to require fault investigations on sites located within Special Studies Zones to preclude new construction of certain inhabited structures across the trace of active faults. The Site is not located within the Alquist-Priolo Earthquake Fault Zone. No evidence of active or potentially active faulting was observed during our investigation.

Several sources were researched for information pertaining to site seismicity. The majority of data was obtained from the program, EQFAULT, by Blake (2000) that allows for an estimation of peak horizontal ground acceleration (PGA) using a data file of approximately 150 digitized California faults. This program processes publically available information including the dominant type of faulting within a particular region, the maximum earthquake magnitude each fault is capable of generating, the estimated slip-rate for each fault, and the approximate location of the fault trace. Printouts of the results of the fault search for the Site are shown as Plates I-1 and I-2 in Appendix B.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 6

4.1 Deterministic Analysis
The Site is likely to be subject to strong seismic ground shaking during the life of the project. Based on the referenced literature and deterministic analysis performed with the EQFAULT software, the NewportInglewood (L.A. Basin) Fault, approximately 2.2 miles (3.5 km) from the Site, would probably generate the most severe site ground motions. A Maximum Probable Earthquake (MPE), i.e. the maximum earthquake that is considered likely to occur during a 100-year time interval, of 7.1 Mw (moment magnitude as per USGS) has been assessed along the Newport-Inglewood (L.A. Basin) Fault. As shown on Plate I-2 in Appendix B, estimated PGA resulting from a MPE event on the Newport-Inglewood (L.A. Basin) Fault is on the order of 0.468g should this event occur at the fault’s closest approach to the Site. Other nearby active faults include the Palos Verdes Fault and the Puente Hills Blind Thrust Fault, located approximately 6.5 miles (10.4 km) and 9.7 miles (15.6 km) away, respectively. In sum, approximately 44 active or potentially active faults have been found within 62 miles (100 km) of the Site.

4.2 Probabilistic Analysis
The seismicity of the Site was evaluated utilizing probabilistic analysis available from USGS Unified Hazard Tool (https://earthquake.usgs.gov/hazards/interactive/). The Maximum Probable Earthquake (MPE) and the Maximum Considered Earthquake (MCE) that carry 10 percent and 2 percent exceedance probabilities, respectively, in 50 years have been considered. Based on a typical damping ratio of 5% and a Vs 30 value of
360 m/sec, corresponding with Site Class C/D boundary, nearest to the derived a Vs 30 value of 387 m/sec
from the “Set Site Parameters for Web Services”’’ function as part of the “Hazard Spectrum Calculator (Local)” application available from the “OPENSHA” website, three spectral acceleration values representing peak ground acceleration (PGA), spectral acceleration for structural period of 0.2 second (Sa – 0.2 sec; typical of low-rise buildings) and spectral acceleration for structural period of 1.0 second (Sa – 1.0 sec; typical of multi-story buildings) have been analyzed and are tabulated below.

Seismic Acceleration Values from USGS Unified Hazard Tool 3 Latitude Longitude Vs
30 (m/sec) Scenario Acceleration (g)
PGA Sa – 0.2 sec Sa – 1.0 sec
N 33.9023 W 118.3211 360
MPE 1 0.409 0.997 0.452
MCE 2 0.742 1.778 0.941

1. MPE scenario carries a 10% exceedance probability in 50 years. 3. Edition: Dynamic: Conterminous U.S. 2014 (v4.2.0)

2. MCE scenario carries a 2% exceedance probability in 50 years.

4.3 2022 CBC Seismic Design Parameters
The earthquake design requirements listed in 2022 CBC and other governing standards account for faults classified as "active", in accordance with the most recent fault listing as per the United States Geological Survey (USGS) or the CGS. The seismic design of the proposed structures should be implemented in accordance with the applicable provisions stipulated in 2022 CBC unless otherwise specified by the governing authority having jurisdiction over the project.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 7
The 2022 CBC seismic design criteria for the Site based on a Site Class of “D”, as per classified on Plate K-1 , Calculation of Weighted N Value for Site Classification, in Appendix B, a Risk Category II and a scenario of Risk-Targeted Maximum Considered Earthquake (MCER) that carries a 2% exceedance probability in 50 years had been determined utilizing the OSHPD Seismic Design Maps web-application (http://seismicmaps.org) and the criteria stipulated in Chapters 11 and 12 of ASCE 7-16 (Reference 13).

Summaries of the seismic coefficients for the Site are tabulated below. 2022 CBC SEISMIC DESIGN PARAMETERS
Site Latitude: N 33.9023  Site Longitude: W 118.3211
 Risk Category a
II
Seismic Parameter Recommended Value
Site Class b D
Soil Profile Name bStiff Soil Profile
Site Coefficient, Fa
c 1.0
Site Coefficient, Fv
d 1.7

0.2-Second Spectral Response Acceleration, SS
e 1.817g

1.0-Second Spectral Response Acceleration, S1
f 0.641g
Adjusted 0.2-Second Spectral Response Acceleration, SMS g 1.817g
Adjusted 1.0-Second Spectral Response Acceleration, SM1 h 1.090g
Design 0.2-Second Spectral Response Acceleration, SDS
i 1.211g
Design 1.0-Second Spectral Response Acceleration, SD1
j 0.726g
Long -Period Transition Period, TL
k 8 sec
Mapped MCEG Geometric Mean Peak Ground Acceleration, PGA l 0.786g Site Coefficient, FPGA
m 1.1
MCEG Peak Ground Acceleration adjusted for Site Class Effect, PGAM n 0.865g
Risk Category I or II or III IV
Seismic Design Category based on S1
o N/A N/A
Seismic Design Category based on SDS
p D D
Seismic Design Category based on SD1
q D D
a Per 2022 CBC Table 1604.5 h Per 2022 CBC Equation 16-21 b Per 2022 CBC Section 1613.2.2 i Per 2022 CBC Equation 16-22 c Per 2022 CBC Table 1613.2.3(1). Note: If simplified design procedure of j Per 2022 CBC Equation 16-23 Section 12.14 of ASCE 7-16 is adopted, the Fa value should be determined k Per ASCE 7-16 Figure 22-14 per Section 12.14.8.1 of ASCE 7-16 with no need for Fv, SMS, SM1 values. l Per ASCE 7-16 Figure 22-9 d Per 2022 CBC Table 1613.2.3(2), provided Cs values are determined by m Per ASCE 7-16 Table 11.8-1 Equations 12.8-2, 12.8-3 and 12.8-4 of ASCE 7-16. n Per ASCE 7-16 Equation 11.8-1 = PGA x FPGA e Per 2022 CBC Figure 1613.2.1(1) o Per 2022 CBC Section 1613.2.5 f Per 2022 CBC Figure 1613.2.1(2) p Per 2022 CBC Table 1613.2.5(1) g Per 2022 CBC Equation 16-20 q Per 2022 CBC Table 1613.2.5(2) Seismic design parameters for Site Classes “D”, “E” and “F” should be obtained from site-specific seismic hazard analysis unless exceptions stipulated in Section 11.4.8 of ASCE 7-16 are invoked. The values listing in the table on previous page reflect invocation of such exceptions (see Footnotes c and d beneath the said table). If the structural design of the Senior Center cannot be supported by the invoked exceptions, the Geotechnical Consultant should be contacted for performing additional, site-specific seismic hazard analysis such that values of site-specific design parameters could be established.

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Please also note that conformance to the 2022 CBC seismic design criteria does not constitute any kind of guarantee or assurance that significant structural damage or ground failure will not take place during the occurrence of a MCER event. The primary goal of seismic design is to protect life and not to avoid all damage, since such design may be economically prohibitive. Following a major earthquake, a building may be damaged beyond repair, yet not collapse. The Structural Consultant should review the pertinent parameters to evaluate the seismic design.

5.0 GEOLOGIC HAZARDS

5.1 Surface Fault Rupture and Ground Shaking
The Site is not located within an Alquist-Priolo Earthquake Fault Zone. No known active or potentially active faults are shown crossing the Site on published maps reviewed. No evidence for active faulting was encountered in the exploratory excavations performed during this evaluation. The risk of surface rupture at the Site is considered very low. However, being in close proximity to several known active and potentially active faults, severe ground shaking should be expected during the life of the proposed development.

5.2 Seismic Hazards

5.2.1 Liquefaction:

The term "liquefaction" describes a phenomenon in which a saturated cohesionless soil loses strength and acquires a degree of mobility as a result of strong ground shaking during an earthquake. The factors known to influence liquefaction potential include soil type and depth, grain size, relative density, groundwater level, degree of saturation, and both the intensity and duration of ground shaking. The soils to the maximum explored depth of 51 feet 6 inches generally consist of moderately stiff to very stiff, cohesive, clayey soils. As evidenced in Figure 3, Local Seismic Hazard Map, the Site is not within an area identified as having a potential for soil liquefaction when subject to a MPE or MCE event.

During ASE’s field exploration, groundwater was encountered at a depth of 20 feet below existing grade in exploratory Boring B-2. Per Reference 5, the historic high groundwater in the vicinity of the Site is between 20 and 30 feet below grade. According to the information available from the State of California Water Resources Control Board Geotracker website, historic high groundwater in a well located less 1/8 mile southeast of the Site is approximately 18.61 feet deep (with well grade same as the Site grade).

Considering that 1) groundwater was encountered at a depth of 20 feet below existing grade, 2) historic high groundwater in a well near the Site is 18.61 feet deep based on reviewed public groundwater monitoring data, and 3) the soils to the maximum explored depth of 51 feet 6 inches, (Partial Extract of the Earthquake Zones of Required Investigation Inglewood 7.5-Minute Quadrangle, California Geological Survey, dated 1999) Project:

Earthquake Fault Zone Proj. No.: 7099.22 Date: February, 2023 Proposed Senior Center
2509 Rosecrans Avenue, Gardena
2860 Walnut Avenue
Figure 3 Local Seismic Hazard Map
Signal Hill, CA 90755
LEGEND
Fault+Liquefaction Hazard Area
Potential Liquefaction Hazard
Area
Tel (562) 426-7990 Fax (562) 426-1842
Approximate Site Location Associated Soils Engineering, Inc.

Subject Site
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 9
consist predominantly of moderately stiff to very stiff clays, the likelihood of occurrence of seismically-induced liquefaction at the Site is deemed nil.

5.2.2 Seismic Settlements:

Ground accelerations emitted from a seismic event can cause densification of loose soils both above and below the groundwater table that may result in settlements on ground surface due to volumetric compression of soil mass. This phenomenon is often referred to as seismic settlement and commonly takes place in relatively clean sands, as well as soils with low plasticity and less fines.

As the site soils encountered consist predominantly of moderately stiff to very stiff clayey soils, the seismically-induced volumetric contraction of soils above the historic high ground water level (i.e. "dry" seismic settlement) upon the impact of MPE/MCE events is not anticipated to exceed 1/4 inch, with minimum differential seismic settlement.

5.2.3 Earthquake-Induced Landslides:

ASE’s review of the same geohazard map that was based upon for the production of Figure 3 indicates that the Site is not located within an area identified as having a potential for earthquakeinduced landslides. There is no indication that recent landslides or unstable slope conditions exist on or adjacent to the Site that would otherwise result in an obvious landslide hazard to the proposed development or adjacent properties. The potential for earthquake induced landslides at the Site in the future is considered nil.

5.2.4 Lateral Spreading:

Lateral spreading, a phenomenon associated with seismically-induced soil liquefaction, is a display of lateral displacement of soils due to inertial motion and lack of lateral support during or post liquefaction. It is typically exemplified by the formation of vertical cracks on the surface of liquefied soils, and usually takes place on gently sloping ground or level ground with nearby free surface such as drainage or stream channel. Since the Site has been evaluated in Section 5.2.1 above not to be susceptible to seismically-induced liquefaction, the potential for the occurrence of liquefactioninduced lateralspreading is deemed nil at the Site.

5.2.5 Tsunamis and Seiches:

Due to the elevation of the Site and absence of nearby waterfront, hazard from tsunami is considered very low.

Seiches are rhythmic movements of water within a lake or other enclosed or semi-enclosed body of water, generally caused by earthquakes. Since no lakes or other enclosed bodies of water lie on or near the Site, the hazard from seiches is not present at the Site.

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5.2.6 Flood Hazards:

The Site was located on the ESRII/FEMA Hazard Awareness site. The Site is not located within the limits of the 100-year flood plain per FEMA Flood Insurance Rate Map (Map No. 06037C1790F, map revised September 26, 2008), and is located outside an area of 0.2-percent-annual-chance flood, as shown on Figure 4, National Flood Hazard Layer FIRMette.

6.0 GEOTECHNICAL CONSIDERATIONS AND RECOMMENDATIONS
Based on the results of field exploration, laboratory testing, and engineering analysis, it is ASE's geotechnical opinion that the major geotechnical factors affecting the design and construction of the Senior Center include the following:

1. Soil disturbances as a result of site demolition and clearing operations.

2. Backfilling and compaction of the existing basement to be demolished.

3. Presence of soils that exhibit “High” expansion potential at shallow depth that will likely heave or shrink significantly and unevenly upon saturation and drying, respectively, resulting in potentially excessive uneven displacement of overlying foundations, structural improvements, and flatworks.

In consideration of the above factors, it is ASE’s opinion that site soils will be able to provide satisfactory bearing stratum for structure support of the Senior Center provided that the foundation design accounts for the presence of “High” expansive subgrade soils and the remedial grading essential to reduce unfavorable slab displacement as a consequence of settlement or heaves of underlying clayey soils, as recommended herein, is implemented such that all buildings and structural improvements on the Site are to be supported by properly compacted suitable and/or modified fill. The grading recommendations provided herein should be reviewed when final project concept and grading plans become available. It is assumed that the proposed finish grades will be close to the existing site grades (± one foot).

Upon implementation of remedial grading recommended herein, conventional foundations comprising continuous spread footings and isolated pad footings bearing on compacted blended or lime treated soils, together with slab-on-grade may be considered for structural support. Alternatively, in view of the presence of “High” expansive site soils, PT slab may be considered for structural support of the Senior Center.

6.1 Site Preparation

6.1.1 Existing Improvements:

Prior to grading operations, it will be necessary to remove designated existing construction, including any remaining buried obstructions, which may be in the areas of the Senior Center.

Structure removal should include foundations. Concrete flatwork and AC pavements should also be removed from the areas of proposed construction. Concrete and asphalt fragments from site National Flood Hazard Layer FIRMette
0 500 1,000 1,500 2,000 250
Feet
Ü

SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT

SPECIAL FLOOD

HAZARD AREAS
Without Base Flood Elevation (BFE)
Zone A, V, A99
With BFE or DepthZone AE, AO, AH, VE, AR
Regulatory Floodway

0.2% Annual Chance Flood Hazard, Areas
of 1% annual chance flood with average
depth less than one foot or with drainage
areas of less than one square mileZone X
Future Conditions 1% Annual
Chance Flood HazardZone X
Area with Reduced Flood Risk due to
Levee. See Notes.Zone X
Area with Flood Risk due to LeveeZone D
NO SCREENArea of Minimal Flood Hazard Zone X
Area of Undetermined Flood HazardZone D
Channel, Culvert, or Storm Sewer
Levee, Dike, or Floodwall
Cross Sections with 1% Annual Chance

17.5 Effective LOMRs
Water Surface Elevation
Coastal Transect
Base Flood Elevation Line (BFE)
Limit of Study
Jurisdiction Boundary
Coastal Transect Baseline
Profile Baseline
Hydrographic Feature
Digital Data Available
No Digital Data Available
Unmapped
This map complies with FEMA's standards for the use of
digital flood maps if it is not void as described below.

The basemap shown complies with FEMA's basemap
accuracy standards
The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 1/11/2023 at 7:28 PM and does not
reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or
become superseded by new data over time.

This map image is void if the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation date, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for
regulatory purposes.

Legend

OTHER AREAS OF

FLOOD HAZARD

OTHER AREAS

GENERAL

STRUCTURES
OTHER

FEATURES

MAP PANELS
B
8 20.2
The pin displayed on the map is an approximate
point selected by the user and does not represent
an authoritative property location.
1:6,000
118°19'35"W 33°54'23"N
118°18'57"W 33°53'53"N
Basemap: USGS National Map: Orthoimagery: Data refreshed October, 2020 FIGURE 4
ASE#7099.22
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demolition operations should be disposed of off-site, unless they can be stockpiled and processed to meet the specifications for Crushed Miscellaneous Base ("CMB"), Processed Miscellaneous Base ("PMB") or Pulverized Miscellaneous Base ("PMB") as outlined in Sections 200-2.4, 200-2.5 or 200-

2.8, respectively, of the latest edition of the "Standard Specifications for Public Works Construction" (the Greenbook) and reused as approved fill or base material.

6.1.2 Surface Vegetation:

Surface vegetation should be stripped from areas of proposed construction. Stripping should penetrate six (6) inches into surface soils. Any soil contaminated with organic matter (such as root systems or strippings mixed into the soil) should be disposed of off-site or set aside for future use in non-structural landscaped areas. Removal of trees and shrubs should include rootballs and attendant root systems.

6.1.3 Underground Utilities:

Any underground utilities to be abandoned within the zone of proposed construction should be cut off a minimum of five (5) feet from the area of the new structures. The ends of cut-off lines should be plugged a minimum of five (5) feet with concrete exhibiting minimum shrinkage characteristics to prevent water migration to or from hollow lines. Capping of lines may also be required should the plug be subject to any line pressure. Alternatively, deep hollow lines may be left in place provided they are filled with concrete or 2-sack control density fill (slurry fill). No filled line should be permitted closer than two (2) feet from the bottom of future footings, unless it has been evaluated and approved by the Geotechnical Consultant.

However, local ordinances relative to abandonment of underground utilities, if more restrictive, will supersede the above minimum requirements.

6.2 Site Grading
In view of reducing the adverse effects associated with the development of excessive total or differential static settlement and/or heave underneath the Senior Center building, as well as to ensure uniform bearing competency for foundations and slabs, engineered improvements of site soils are recommended as follows.

6.2.1 Undocumented Fill/Disturbed Native Soils:

Although only encountered in ASE’s exploratory boring B-P1, any other undocumented fill soil encountered during site grading in the areas of the Senior Center, as well as any native soils disturbed during demolition and clearing operations, should be excavated full depth under the observation and confirmation by the Geotechnical Consultant. Lateral extent of overexcavation beyond the perimeters of the Senior Center, where possible, should be to a minimum distance ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 12
equal to the depth of undocumented fill/disturbed soil encountered or two (2) feet, whichever is greater.

For other secondary improvements such as free-standing walls, flatworks, or hardscape, the lateral extent of removal should be to a minimum distance equal to the depth of undocumented fill/disturbed soils encountered or one (1) foot, whichever is greater.

The exposed excavation bottom should be scarified/reworked to a minimum one (1) foot depth and recompacted to a minimum 90 percent relative compaction with a minimum moisture content of two (2) percentage points above optimum moisture content, prior to backfilling with approved soils as specified in Section 6.2.7.

6.2.2 Expansive Soils:

Laboratory test result on a near surface soils sample indicates a “High” soil expansion potential (i.e.

Expansion Index, EI = 94 per ASTM D4829-21 Test Method) as defined in Table 1 of ASTM D4829-21 Test Method and Section 1803.5.3 of 2022 CBC. The recommendations of remedial grading and design of structural elements in contact with on-site soils should take the “High” expansion potential into consideration, as appropriate. However, for foundations and structural elements supported by approved fill materials complying with criteria stipulated in Section 6.2.6 below, or by recompacted site soils treated with quicklime or cement as per Section 6.2.2 below, the anticipated reduced soils expansion potential could help to alleviate some structural concerns.

Please note that it is highly desirable that the soil expansion potential be re-evaluated through additional testing during or after rough grading operations to verify the design adequacy of foundation or slab-on-grade against the re-tested soil expansion potential as heterogeneity within soil mass is not uncommon.

Lightly loaded structural elements such as shallow foundations and slabs are likely to undergo significant movements due to the “High” expansion potential of site clayey soils. Such magnitude of movement could potentially cause noticeable distress such as cracks, deformation and/or misalignments to the overlying foundations, slabs, or walls. It should be noted that design provisions, such as the use of “Very Low” to “Low” expansive fill or lime- or cement-treated soils beneath lightly loaded structural elements, adequate reinforcements, measures to minimize moisture fluctuations in foundation soils, deeper foundations or other measures, as presented in Sections 6.2 and 6.3 of this Soils Report, may help to alleviate the effects of “High” soils expansion on the foundations and structures but may not completely eliminate the problem.

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6.2.3 Remedial Grading:

To provide acceptable foundation support for the Senior Center, it is recommended that on-site soils within the footprint of the building pad be overexcavated and removed uniformly to a minimum depth of five (5) feet below existing or finish grade, whichever is lower, and five (5) feet laterally beyond the building footprint, and replaced with properly compacted fill such that the building foundations are supported on a re-engineered, competent fill layer.

The upper three (3) feet of compacted fill should consist of "Very Low" to “Low” expansive, granular material (Expansion Index, "EI" per ASTM D4829-18 test procedures not greater than 50), compacted to at least 90 percent relative compaction with minimum moisture content of two (2) percentage points above optimum moisture content. On-site clayey soils at their present state generally exhibit an EI far exceeding the preferred value and, thus, are not deemed suitable for reuse as fill within the upper three (3) feet from finish grade. As such, suitable import sources to be used as fill for the upper three (3) feet of compacted fill should be identified, pre-tested and preapproved prior to the onset of site rough grading. Alternatively, blending “Very Low” expansive (EI ≤ 20) sandy soils, pulverized PCC or AC, or CAB material with the excavated on-site soils to lessen the resultant EI may be considered. The imported fill and the blended soil should comply with the fill criteria stipulated in Section 6.2.7 below. The blending should ensure a thorough mixture of various soils and materials, and should be subject to testing and approval by the Geotechnical Consultant prior to use. Excavated on-site native soils could be re-used as-is for backfill deeper than three (3) feet from finish grade.

Alternatively, remedial grading could be carried out by treating the overexcavated site soils with quicklime or Portland cement. To provide acceptable support for slabs within the building, it is recommended that on-site soils within the footprints of the building pad be overexcavated and removed uniformly to a minimum depth of five (5) feet below existing or finish grade, whichever is lower, and five (5) feet laterally beyond the building footprint and replaced with lime- or cementtreated, properly compacted fill such that the building slabs are supported on a lime- or cementtreated, compacted fill layer. Due to the predominantly "CH" classification of on-site soils, it is anticipated that, by blending 6 to 8 percent of quicklime or cement (by weight of dry on-site soils) into the overexcavated soils during grading and compaction, it would chemically alter and stabilize the clayey soil into a less expansive state, thus providing a more stable subgrade for the support of shallow foundation and slabs. Guidelines and procedures for lime treatment and cement treatment of soils stipulated in Sections 301-5 or 301-3.2 of the Greenbook, respectively, should be followed if this alternative is to be adopted. For the determination of optimum lime or cement content, it is essential that laboratory mix design be performed by the Geotechnical Consultant prior to the proceeding of full-scale site grading if this alternative is to be adopted.

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Soils exposed at excavation bottoms to a depth of one (1) foot should be scarified, reworked and recompacted to exhibit a minimum 90 percent relative compaction with a minimum moisture content of two (2) percentage points above optimum moisture content, prior to receiving fill placement. The exposed excavation bottom should be observed, tested, and approved by the Geotechnical Consultant prior to placing compacted fill.

In case of the presence of localized loose soils, the overexcavation needs to be deepened accordingly to delete the loose soil condition. However, this deepened overexcavation may be terminated when the exposed native, undisturbed soils exhibit a natural relative compaction greater than 85 percent, subject to the testing and inspection by the representative from the Geotechnical Consultant.

The Geotechnical Consultant should be provided with appropriate construction details and staking during grading to verify that depths and/or locations of the recommended overexcavation are adequate. For areas on site that grading recommendations stipulated in both Sections 6.2.1 and

6.2.3 apply, the more stringent grading criteria between the two sections should govern.

The depth of overexcavation should be reviewed by the Geotechnical Consultant during the actual construction. Any subsurface obstruction, buried structural elements, and unsuitable material encountered during grading, should be immediately brought to the attention of the Geotechnical Consultant for proper exposure, removal and processing, as recommended.

6.2.4 Pumping and Heaving of Subgrade Soils:

If site soils within the zone of recommended remedial grading are found to contain high moisture content at the time of remedial grading, pumping and/or heaving conditions may be experienced during site overexcavation and grading operations. When soils exhibiting high moisture content are encountered during site grading, the grading contractor may need to use track-mounted equipment in lieu of rubber tire mounted, wherever possible.

If excavated site soils are highly moist or wet at the time of site grading, the excavated soils should be evenly spread and left aerated for a period of time to reduce the moisture content prior to being re-used. If project schedule does not allow prolonged drying of any encountered wet site soils, alternative measures such as using or blending with site drier soils or imported “Very Low” to “Low” expansive (EI ≤ 50) fill, pulverized PCC or AC, or CAB material, if available, may be considered.

The Geotechnical Consultant should be consulted at the time of site grading for the assessment of such alternative measures.

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When pumping and heaving conditions are observed with soils exposed at the overexcavation bottom, it will be necessary to deepen the overexcavation within the area of observed pumping and heaving an additional 12 to 18 inches, under the observation and evaluation of the Geotechnical Consultant’s representative. The area of the deepened overexcavation should subsequently be backfilled and rammed tightly with 3/4” to 1” open-graded crushed rocks complying with the criteria of Section 200-1.2 of the Greenbook to form a stiffened platform to facilitate the ensuing fill placement and compaction. The crushed rock layer should be underlain and overlain by a layer of filtering geofabric (such as Mirafi 140N or equivalent) prior to and subsequent to the placement of crushed rocks, respectively. If necessary, alternative and sitespecific recommendations for the stabilization of excavation bottoms may be provided by the Geotechnical Consultant based on a review of grading-exposed soil conditions.

6.2.5 Temporary Excavation:

Excavations of site soils 4 feet or deeper should be temporarily shored or sloped in accordance with Cal OSHA requirements.
a) Temporary Sloping:

In areas where excavations deeper than 4 feet are not adjacent to existing structures or public right-of-ways, sloping procedures may be utilized for temporary excavations. It is recommended that temporary slopes in both fill and native soils be graded no steeper than 3/4:1 (H:V) for excavations up to 10 feet in depth. The above temporary slope criteria is based on level soils conditions behind temporary slopes with no surcharge loading (structures, traffic) within a lateral distance behind the top of slope equivalent to the slope height.

It is recommended that excavated soils be placed a minimum lateral distance from top of slope equal to the height of slope. A minimum setback distance equivalent to the slope height should be maintained between the top of slope and heavy excavation/grading equipment.

Soil conditions should be reviewed by the Geotechnical Consultant as excavation progresses to verify acceptability of temporary slopes. Final temporary cut slope design will be dependent upon the soil conditions encountered, construction procedures and schedule. b) Temporary Shoring:

Temporary shoring will be required for those excavations where temporary sloping as specified above is not feasible.

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Temporary cantilever shoring, if used, should be designed to resist an active earth pressure of 69 pounds per cubic foot (pcf) equivalent fluid pressure (EFP) for level soil conditions behind shoring. The resultant lateral deflection of shoring and surficial settlement immediately behind shoring are estimated to be on the order of one (1) to one and one half (1-½) percent of the shored excavation depth. Should this ground deformation be intolerable to the existing structure, ASE should be consulted for more detailed analysis and further recommendations.

Please note that, due to the presence of “High” expansive subgrade soils, temporary shoring could be subjected to excessively high lateral expansive pressure should the surrounding subgrade soils be subjected to prolonged moisture inundation from leaky plumbing or heavy rainfall. Should exposure to moisture inundation be a concern during the course of temporary excavation on site, alternative braced excavation may need to be considered and the Geotechnical Consultant should be consulted for pertinent recommendations.

The design of shoring should also include surcharge loading equivalent to one-third (1/3) of the loading of existing structures and anticipated traffic, including delivery and construction equipment, when such loading is within a distance from the shoring equal to the depth of excavation. In addition, a minimum uniform lateral pressure of 100 pounds per square foot (psf) in the upper ten (10) feet of shoring should be considered in the design when normal traffic is permitted within ten (10) feet of the shoring.

6.2.6 Exterior Slab-on-Grade/Flatwork/Pavement/Hardscape Support:

For the purpose of reducing future unsightly and uneven movements and cracks of any exterior slab-on-grade, concrete flatwork, or hardscape, it is recommended that subgrade soils to a minimum depth of eighteen (18) inches below the bottom of and eighteen (18) inches laterally beyond the footprint of exterior concrete slab-on-grade/concrete flatwork/pavement/hardscape should be overexcavated then backfilled and recompacted with suitable fill soils consisting of "Very Low" to “Low” expansive (EI ≤ 50), suitable site, import or blended material, compacted to at least 90 percent relative compaction with a minimum moisture content of two (2) percentage points above optimum moisture content. Prior to placement of compacted fill, the upper six (6) inches of exposed native subgrade should be reworked to at least 90 percent relative compaction with a minimum moisture of two (2) percentage points above optimum moisture content. However, if undocumented fill is encountered in these areas, recommendations stipulated in Section 6.2.1 above should be complied with.

Alternatively, quicklime or cement treatment mentioned in Section 6.2.3 above may also be considered for the stabilization and re-engineering of the upper eighteen (18) inches of subgrade soils beneath exterior concrete slab-on-grade/concrete flatwork/ Pavement/hardscape. Should the ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 17
Owner decide to use on-site clayey soils without either blending with "Very Low” to “Low” expansive import soils or treatment with quicklime for exterior concrete flatwork backfill, it is very likely that more frequent maintenance and repair of unsightly cracks and movements will be required due to the “High” expansive nature of site soils.

From geotechnical viewpoint, new landscape area with only softscape is not subject to subgrade preparation and remedial grading requirements mentioned in Sections 6.2.1, 6.2.3 and 6.2.6.

6.2.7 Suitable Soils and Imported Soils:

Unless otherwise noted, any soil imported or blended as fill for the completion of subgrade preparation should consist of predominantly "Very Low" to “Low” expansive soils exhibiting an EI not greater than 50, and should be exhibiting a relatively uniform gradation, free of debris, particles greater than 4 inches in maximum dimension, organic matter or other deleterious materials. For the excavated on-site soils to be blended such that the resultant EI is not exceeding 50, a general rule-of-thumb would be blending one (1) part of excavated site soils with two (2) parts of imported “Very Low” (EI ≤ 20) expansive soils.

Unless otherwise approved by the Geotechnical Consultant, the imported or blended fill materials should also comply with the following soil corrosivity criteria for the desired concrete and reinforcement protection.

Corrosivity Criteria for Select Fill and General Fill
Soluble Sulfate
(% by weight) (1)
Soluble Chloride
(ppm) (2)
Resistivity Value
(ohm-cm) (3) pH-Value (4)
≤ 0.1 ≤ 500 ≥ 2000 7.0 ~ 8.8
(1) California Test Method 417. (2) California Test Method 422. (3) ASTM G187-18 Test Method. (4) California Test Method 532.

All blended material and imported fill soils should be examined by the Geotechnical Consultant’s representative, and tested as necessary for evaluating their suitability for use as fill prior to being hauled to the Site. Final acceptance of any imported soil will be based upon review and testing of the soil actually delivered to the Site. All blended soils to be used as fill must be tested and approved by the Geotechnical Consultant prior to being used for fill placement.

6.2.8 Backfilling and Compaction Requirements:

Existing site soils at their present state and composition, unless treated with quicklime or cement as per Section 6.2.3 above, blended with “Very Low” expansive (EI ≤ 20) soils, crushed AC/PCC or CAB material to reduce the resultant EI to ≤ 50, or other measures approved by the Geotechnical Consultant, are only considered suitable for re-use as fill during site grading at depths greater than three (3) feet below subgrade within the footprint of the building, in non-structural or landscape ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 18
areas, and for backfilling of utility trenches, provided they 1) free of debris, particles greater than 4 inches in maximum dimension, organic matter or other deleterious materials, 2) are not environmentally contaminated, and 3) adequately moisture conditioned to permit achieving the required compaction. No nesting of large particles (2 to 4-inch size) should be permitted during backfilling operations.

On-site soils, blended soils and import materials approved for use as fill should be placed in horizontal lifts not exceeding 8 inches in loose thickness, moisture conditioned to a minimum of two (2) percentage points above optimum moisture content for “Low” expansive import or blended material, as well as for untreated site clayey soils, and to a minimum of one (1) percentage point above optimum moisture content for “Very Low” expansive import material, and compacted to a minimum 90 percent relative compaction. Unless otherwise stated, the measurement of relative compaction in this report should always refer to ASTM D1557-12 Test Method.

6.2.9 Tests and Observations:

All subgrade preparation, compaction, and backfill operations should be performed under the observation of and testing by the Geotechnical Consultant's field representative. An adequate number of field tests should be taken to ensure compliance with this report and local ordinances. If it is determined during grading that site soils require overexcavation to greater depths for obtaining proper support for the proposed structures, this additional work should be performed in accordance with the recommendations of the Geotechnical Consultant.

6.3 Foundation Design

6.3.1 Conventional Shallow Footing Foundation:

Presented below are the recommended geotechnical design and construction criteria for shallow footing foundation, provided remedial grading recommendations discussed in Section 6.2 above are incorporated in project planning and design and implemented during site construction. a) Minimum Footing Dimension and Reinforcement:

In order to mobilize sufficient soils bearing capacity supporting the new footings, it is recommended that the minimum footing embedments, widths and reinforcements for various footing types tabulated in next page be considered.

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Minimum Footing Dimension & Reinforcement
Continuous Spread Footing/Strip Footing Isolated Pad Footing Depth (1)
(in)
Width
(in) Reinforcement Depth (1) (in)
Width
(in) Reinforcement
30 15
Four #5 bars – two
near the top and two
near the bottom
30 24
square
Four #5 bars – two near the
top and two near the
bottom, applied bi-axially
(1) Footing embedment measured from the nearest adjacent lowest soils grade.

The final foundation design details such as concrete strength, reinforcements, etc. should be established by the Structural Consultant.
b) Allowable Soils Bearing Capacity:

For footings complying with the minimum dimension requirements stipulated in Section 6.3.2a) above, the allowable soils bearing capacities, inclusive of both dead and live loads, should be as per tabulated below:

Allowable Soils Bearing Capacity
(psf)
Increase per 12-
inch Increment
in Footing
Width (psf)
Increase per 12-
inch Increment in
Footing Depth
(psf)
Maximum
Composite
Ceiling Value
(psf)
Continuous Spread
Footing/Strip Footing
Isolated Pad
Footing
2,000 2,000 - 200 4,000
The above allowable bearing capacities may be increased by one-third (1/3) when subject to short-term, transient loading induced by wind or seismic activities. c) Lateral Resistance:

Resistance to lateral loads can be assumed to be provided by passive lateral earth pressure and by friction acting on structural components in permanent contact with the subgrade soils.

For site preparation implemented as per recommended in the above Section 6.2.3, lateral resistance on the sides of foundations may be computed using a passive lateral earth pressure of 150 pcf EFP for footings embedded into approved compacted fill soils, subject to a maximum of 1,500 psf. An ultimate coefficient of friction on the order of 0.2 may also be used for structural dead load acting between the footing bottom and the supporting soils, regardless of the distance between new footing and existing building footing.

The passive lateral earth pressure above may be used in conjunction with the ultimate coefficient of friction in calculating composite lateral resistance, provided the passive lateral earth pressure value is reduced by one-third (1/3). The composite lateral resistance may be increased by one-third (1/3) under short term, transient wind or seismic loading.

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d) Static Settlements/Heaves:

Total static settlements/heaves resulting from compression/expansion of subgrade soils for conventional footings designed and constructed in accordance with the above criteria, and supporting maximum provided dead plus live (D+L) column and wall loads mentioned in Section

1.1.2 above, are not anticipated to exceed one (1) inch, when founded on firm and unyielding subgrade materials prepared as per recommended in Section 6.2.3 above. A differential settlement/heave on the order of one-half (1/2) inch over a distance of 30 feet is anticipated between similarly loaded adjacent isolated pad footings, between isolated pad footings and continuous wall footings, and for continuous wall footings over a distance of approximately 30 feet. Please note that the Geotechnical Consultant should be contracted for further evaluation, as necessary, should final design structural loads exceed the maximum loads assumed in the above analyses by more than ten (10) percent.

6.3.2 Post-Tensioned (PT) Slabs for Support of the Building:

If adopted, PT slabs should be designed based on the latest PTI design method (Reference 31) which is stipulated in References 29 and 30. Both of References 29 and 30 are part of the PT-slab design procedure per Section 1808.6.2 of the 2022 CBC. The PT slabs should be designed for at least one (1.0) inch of differential settlement over the largest dimension of the Building.

Based on review of laboratory data for the on-site materials, the average soil modulus of subgrade reaction, K-value, to be used for design is 80 pounds per cubic inch (pci). The PT slabs may also be designed based on a surface soils bearing value of 700 psf.

PT slabs should have sufficient stiffness to resist differential movement of the corner, edge or center of slab due to non-uniform swell and shrinkage of subgrade soils and fluctuation of subgrade soil moisture content. Based on the specifications of the PTI method, 3rd Edition, the table on the next page presents suggested minimum coefficients to be used for soils with different degrees of expansion potential. For the encountered site soils, a “High” soil expansion category could be considered for PT slab design.

Please note that the parametric values tabulated on next page are considered minimums and only applicable provided structures have gutters and downspouts and positive drainage is maintained away from structures. These parametric values may not be adequate to represent worst-case conditions such as adverse drainage and/or improper landscaping and maintenance. The Geotechnical Consultant should be consulted for additional analysis if site drainage and/or landscape design could compromise the long-term performance of PT slabs.

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PTI METHOD (3RD EDITION) DESIGN PARAMETERS
Thornswaite Index -20 Soil Fabric Factor, Ft 1.0 Equilibrium Suction, pF 3.909 Surface Equilibrium Wet Suction, (pF)wet 11.782 aSurface Equilibrium Dry Suction, (pF)dry 17.593 a Soil Expansion
Classification
Very Low
(EI ≤ 20)
Low
(20 < EI ≤ 50)
Medium
(50 < EI ≤90)
High
(90 < EI ≤ 130)
Very High
(EI > 130)
(em) edge lift (ft) b 5.20 c 4.64 c 4.13 c 3.78 c 3.0
(em) center lift (ft) b 9.00 c 9.00 c 8.55 c 7.34 c 5.3 (ym) edge lift (in) 0.25 0.62 1.11 1.61 1.66
(ym) center lift (in) 0.10 0.25 0.43 0.60 0.75
a. Values per PTI recommendations.
b. Soil parameters such as Atterberg Limits and % passing #200 have been derived from typical values available from Day (2005), Bowles (1996), and PTI (2004).
c. Governed by soil aspect consideration.

Deepened footings/edges around the slab perimeter must be used to minimize non-uniform surface moisture migration (from an outside source) beneath the slab. An edge depth of at least 24 inches should be considered for soils with “Very High” EI’s, 18 inches for soils with “Medium” to “High” EI’s, and 12 inches for soils with “Low” EI’s. The bottom of the deepened footing/edge should be designed to resist tension, using cable or reinforcement per the Structural Engineer.

The entirety of the interior slab in a building should be underlain by a minimum 15-mil polyvinyl chloride membrane vapor barrier with a minimum overlap of 12 inches in all directions. The interior slab should be placed in direct contact with the vapor retarder, underlain by four (4) inches of 1/2” crushed rock as a capillary break as per Section 4.505.2.1 of the current CALGreen Code. The concrete slab shall consist of a concrete mix design which will address bleeding, shrinking and curling.

PT slabs often develop a “dishing” or “arching” characteristic due to the fluctuation of soil moisture content underlying the perimeter and center slab. All areas to receive concrete should be presaturated to a depth of 18 inches such that the soil within this zone is at optimum moisture or higher. The Geotechnical Engineer should verify the subgrade was presaturated within 24 hours of placing the moisture barrier.

6.3.3 Retaining Walls:

It is ASE’s understanding that there is no retaining wall planned as part of the Senior Cener construction. If design or planning change requires the construction of retaining wall, ASE should be consulted for pertinent retaining wall design parameters and construction guidelines.

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6.3.4 Footing/Foundation Observation:

All footing/foundation excavations should be observed by the Geotechnical Consultant's representative to verify minimum embedment depths and competency of bearing soils. Such observations should be made prior to placement of any reinforcing steel or concrete.

6.4 Slabs-On-Grade
Concrete slabs-on-grade/flatwork/hardscape should be supported on properly compacted soils as recommended in the preceding Section 6.2.6. The slab subgrade soils should also be proof-rolled just prior to construction to provide a firm, unyielding surface, especially if the subgrade has been disturbed or loosened by the passage of construction traffic. Final compaction and testing of slab subgrade should be performed just prior to placement of concrete.

Per Section 1808.6.2 of the 2022 CBC, when the WRI/CRSI Design of Slab-on-Ground Foundations is adopted, the Effective Plasticity Index (EPI) tabulated below should be utilized for slab-on-grade design. The EPI defined as the weighted plasticity index (WPI) x Cs x Co. In addition to using site native soils, the preliminary EPI reflecting the alternative of using “Very Low” to “Low” expansive (EI ≤ 50) imported fill, blended soils, or lime-/cement-treated soils beneath slab-on-grade are also tabulated below. However, it is of essential importance that the EPI for final slab-on-grade design should be based on additional laboratory tests performed on soils samples retrieved from rough graded building pad.

Area WPI CS
(1) C0(2) EPI
Compacted native soils 44 1.0 1.0 44
With 3' of imported or blended “Very Low” to “Low” (EI ≤ 50) expansive fill soil from finish subgrade(3) 22 1.0 1.0 22 With 5’ of lime- or cement-treated soils from finish subgrade (4) 16 1.0 1.0 16 (1) For essentially flat ground, Cs = 1.0.
(2) For over-consolidated foundation materials with unconfined compressive strength not exceeding 6000 psf, C0 effect is deemed less significant.
(3) A PI of 10 is assumed for “Very Low” to “Low” expansive fill soil. Refer to Sections 6.2.3 and 6.2.6 for applicable “Low” expansive fill depths.
(4) A PI of 10 is assumed for lime-treated soils.

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Structural Design of Concrete Slabs
Area k-value
(psi/in)
Allowable
Bearing Capacity
(psf)
Minimum Actual
Slab Thickness
(Inches)
Minimum Reinforcement
Compacted native soils per Section

6.2.6; exterior slab-on-grade ONLY 80 600 5.0
No. 4 rebar spaced
maximum 12 in. on centers
each way
With 3' of imported or blended “Very
Low” to “Low” (EI ≤ 50) expansive fill
soil from finish subgrade
120 800 4.5 No. 3 rebar spaced max. 12
in. on centers each way
With 5’ of lime- or cement-treated
treated soils from finish subgrade 120 800 4.5 No. 3 rebar spaced max. 12 in. on centers each way For structural design of concrete slabs, the moduli of subgrade, allowable bearing capacities may be used for slab various grading configurations as tabulated on previous page. Slabs should be properly designed and reinforced for the construction and service loading conditions, as well as considering the soil expansion potential. To minimize slab distress due to soil expansion, geotechnically, it would be prudent to provide a minimum actual slab thickness with minimum reinforcements for various grading configurations as tabulated on previous page. The structural details, such as slab thickness, concrete strength, amount and type of reinforcements, joint spacing, etc., should be established by the Structural Consultant in accordance with pertinent sections in 2022 CBC.

The entirety of any new slabs within the Senior Center should be underlain by an impermeable vapor barrier as per stipulated in Section 6.3.1 above.

Exterior slabs should be properly jointed to limit the number of concrete shrinkage cracks. For long/thin sections, such as sidewalks, expansion or control joints should be provided at spacing intervals equal to the width of the section. Slabs between 5 and 10 feet in minimum dimension should have a control joint at centerline. Slabs greater than 10 feet in minimum dimension should have joints such that unjointed sections do not exceed 10 feet in maximum dimension. Where flatwork adjoins structures, it is recommended that a foam joint or similar expansion material be utilized. Joint depth and spacing should conform to the ACI recommendations. It is, however, cautioned that uneven heaving of exterior slabs may develop in the future when prolonged irrigation or seepage permeates the subgrade soil, especially in areas that expansive soil pockets exist due to inadequate control or inspection of earthwork construction.

6.5 Asphaltic Concrete (AC) Flexural Pavement Design
The finish grade at the subject Site is anticipated to be underlain by compacted structural fill consisting of site soils. For preliminary pavement design purposes, an tested R-Value of 5 has been utilized considering the site clayey soils as subgrade soils. Three (3) traffic indices (TI’s) of 4.5, 5.5 and 7.0, together with the assumed R-Value, have been utilized for the development of preliminary recommendations for the ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 24
pavement sections. Analyses performed in accordance with the current edition of the Caltrans Highway Design Manual, and assuming compliance with site preparation recommendations, it is recommended that the AC pavement structural sections tabulated below be considered. However, please be reminded that the preliminary pavement section recommendations have been established based purely on procedures stipulated in Caltrans Manual. Local government authority should be consulted for minimum pavement section requirements and, if more stringent than that recommended by ASE, be complied with. (1) Asphalt Concrete;
(2) CAB per the Greenbook section 200-2.2, compacted to at least 95% relative compaction. (3) AB reinforced with a layer of geogrid (Tensar BX-1100, Mirafi BXG-11 or equivalent) placed at bottom of AB layer.

It is recommended that R-Value testing be performed on representative soil samples after rough grading operations on the upper 2 feet to confirm/modify applicability of the above pavement sections. Should the alternative of replacing the upper 18 inches of subgrade soils with “Very Low” to “Low” expansive (EI ≤ 50) soils or treating the site soils with quick lime during subgrade preparation be adopted, the subgrade R-value is anticipated to increase, which could result in reduction in AC pavement thicknesses for different TI’s. ASE should be consulted for further AC pavement section analysis based on testing on the “Very Low” to “Low” expansive (EI ≤ 50) fill soils or lime-/cement-treated subgrade soils.

The aggregate base should conform to the criteria of CAB per Section 200-2.2 of the Greenbook. The base course should be compacted to a minimum relative compaction of 95% at a minimum of 1 percentage point above the optimum moisture content. Field testing should be used to verify compaction, aggregate gradation, and compacted thickness.

The asphalt concrete pavement should be compacted to 95% of the unit weight as tested in accordance with the Hveem procedures stipulated in the current California Test Method (CTM) 304. The asphalt concrete material shall conform to Type III, Class C2 or C3, of the Greenbook. All subgrade and aggregate base materials should be proof-rolled by heavy rubber tire equipment to verify that the subgrade and base grade are in a non-yielding condition.

If the paved areas are to be used during construction, or if the type and frequency of traffic is greater than assumed in the design, the pavement section should be re-evaluated for the anticipated traffic.

Traffic Index
(TI)
Pavement Section Alternatives Remark
AC (1) (inches) AB (2) (inches)

4.5 3.0 8.5 For auto parking stalls.

5.5 3.0 12.0/8.0 (3) For auto circulation aisles.

7.0 4.0 15.5/10.5 (3)

5.0 13.5/9.0 For fire lanes and truck access ways/entry and exits. (3)

6.0 11.5/7.5 (3)
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6.6 Portland Cement Concrete (PCC) Pavements
The concrete (PCC) pavement sections are based on load safety factors of 1.0 and 1.1, and a modulus of subgrade reaction ("k" Value) of 80 pounds per cubic inch (pci) for site soils compacted as subgrade material, and the design procedures presented in the Portland Cement Association bulletin "Thickness Design for Concrete Highway and Street Pavements" (EB109.01P), 1984. A design service life of 20 years was assumed for the design of the Portland cement concrete pavement section.

Concrete Flexural Strength (psi) (1) Pavement Thickness (in) (2), (4) Pavement Thickness (in) (3)
,
(4)
600 6.0 7.0
650 5.5 6.5
(1) Represents 90-day flexural strength. Based on Figure 10 of Reference 16, concrete with 28-day unconfined compressive strength values of 4000 to 4500 psi typically correlates to 90-day flexural strength values of 600 and 650 psi, respectively. (2) Load Safety Factor = 1.0 (Auto Parking Stalls)
(3) Load Safety Factor = 1.1 (Fire Lanes/Truck Traffic Areas/Entry and Exits) (4) Assumes no PCC shoulder or curb.

Should the alternative of replacing the upper 18 inches of subgrade soils with “Very Low” to “Low” expansive (EI ≤ 50) soils or treating the site soils with quick lime/cement during subgrade preparation be adopted, the subgrade "k" Value is anticipated to increase, which could result in reduction in PCC pavement thicknesses. ASE should be consulted for further PCC pavement section analysis based on testing on the “Very Low” to “Low” expansive (EI ≤ 50) fill soils or lime/cement-treated subgrade soils.

The Structural Consultant should establish the design details of the concrete pavement section, including reinforcements, concrete strength, and joint and load transfer requirements.

It is recommended that edges of concrete pavements which are not adjacent to existing buildings, or are adjacent to planter areas, be downturned a minimum of 12 inches or be constructed with curbing to prevent water infiltration to subgrade soils. If edges are downturned or curbing is constructed, the above pavement thicknesses should be decreased by 1/2 inch.

The upper one (1) foot of exposed subgrade soils beneath concrete pavements should be further compacted to a minimum 95 percent relative compaction with a minimum moisture content of two (2) percentage points above optimum moisture content. Subgrade soils should exhibit a firm, unyielding surface in addition to the recommended compaction. Final compaction and testing of pavement subgrade should be performed just prior to placement of aggregate base and/or concreting. Other pertinent subgrade preparation measures stipulated in the "Thickness Design for Concrete Highway and Street Pavements" (EB109.01P), 1984, or required by the jurisdictional municipal authorities should be followed accordingly.

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6.7 Site Drainage
Per Section 1804.4 of 2022 CBC, a minimum 5% descending gradient away from the Senior Center for a minimum distance of 10 feet should be incorporated for earth grade placed adjacent to the foundation.

This descending gradient may be reduced to 2% for any impervious areas, such as concrete paved walkways, within the 10-foot zone. For areas where the 10-foot drainage distance is not attainable, alternative measure such as concrete-lined swales having a minimum 2% gradient may be adopted to divert the water away from the Senior Center, provided that a minimum 5% gradient is maintained in the distance between the building footprint and the diversion measure such as swales. For more specific site drainage guidelines, the Project Civil Consultant should refer to the pertinent sections in 2022 CBC.

Any planter areas to be placed adjacent to structure perimeters should be provided with impervious bottoms and a drainage pipe, or should be planted with drought-tolerant plants, to divert water away or minimize moisture infiltration from foundation and slab subgrade soils. Excessive moisture variations in site soils could result in significant volume changes and movement.

6.8 Soil Corrosivity Evaluation
Soils corrosivity tests were performed on representative samples of site soil. These tests are meant to determine the corrosive potential of on-site soils to proposed concrete foundations/flatwork and underground metal conduit. The soils corrosivity test results are presented in Appendix A.

6.8.1 Concrete Corrosion:

Disintegration of concrete may be attributed to the chemical reaction of soils sulfates and hydrated lime and calcium aluminate with the cement. The severity of the reaction resulting in expansion and disruption of the cement is primarily a function of the concentration of soluble sulfates and the water-cement ratio of the concrete.

A soluble sulfate content of 0.036% by weight has been recorded from testing per California Test Method (CTM) 417 conducted on on-site soils, as indicated in Appendix A. As per Table 19.3.1.1 of ACI 318-19, soils exhibiting soluble content less than 0.1% by weight are classified as having “S0” sulfate exposure category. As such, for structural features to be in direct contact with on-site soils, the special geotechnical requirements on the type of Portland cement or water cement ratio corresponding to the tested “S0” sulfate exposure category as per stipulated in Table 19.3.2.1 of ACI 318-19 should be considered.

6.8.2 Metal Corrosion:

In the evaluation of soil corrosivity to metal, the hydrogen ion concentrates (pH) and the electrical resistivity of the site and backfill soils are the principal variables in determining the service life of ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 27
ferrous metal conduit. The pH of soil and water is a measure of acidity or alkalinity, while the resistivity is a measure of the soils resistance to the flow of electrical current.

Currently available design charts indicate that corrosion rates decrease with increasing resistivities and increasing alkalinities. It can also be noted that for alkaline soils, the corrosion rate is more influenced by resistivity than by pH.

The resistivity value of 679 ohm-cm per ASTM G187-18 Test Method coupled with a pH-value of

8.22 per CTM 643 classifies the on-site soils tested to be very corrosive to buried ferrous metals.

Based on CTM 643, the year to perforation for 18-gauge steel in contact with soils of similar resistivity and pH-value is approximately 21 years for the very corrosive on-site soils. In lieu of additional testing, alternative piping materials, i.e. plastic piping, may be used instead of metal if longer service life is desired or required for utility pipes and fittings in direct contact with on-site soils. These resistivity values of on-site soils may also have implications to other building materials and depths of embedment for steel reinforcement, etc. It is recommended that a qualified corrosion consultant be engaged to review the building plans.

A soluble chloride content of 14 ppm was recorded in our laboratory tests per CTM 422. Per Caltrans guidelines and specifications (References 16 and 17 soils exhibiting soluble chloride contents exceeding 500 ppm are considered “corrosive”. The soils are thus classified as “noncorrosive” per Caltrans criterion. In addition, special measure in terms of rebar protection against chloride corrosion under Exposure Class “C0” stipulated in Tables 19.3.1.1 and 19.3.2.1 of ACI 318- 14 may be required as a result of the soluble chloride content tested. However, the compliance with the corrosivity criteria stipulated in Section 6.2.8 above will ensure that no other particular reinforcement protection measure will be needed for slab-on-grade in contact with import fill.

6.9 Utility Trenches
All trenches should be backfilled with approved fill material compacted to relative compaction of not less than 90 percent per ASTM D1557-12 Test Method. Care should be taken during backfilling to prevent utility line damage.

The on-site soils may be used for backfilling utility trenches from one (1) foot above the top of pipe to the surface, provided the material is free of organic matter and deleterious substances. Any soft and/or loose materials or fill encountered at pipe invert should be removed and replaced with properly compacted fill or adequate bedding material.

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The on-site soils are not considered suitable for bedding or shading of utilities. Imported soils for pipe bedding should consist of non-expansive granular soils having a tested Sand Equivalent (SE) (per ASTM D 2419-14 Test Method testing) value not less than 30.

If sandy soils are used for trench backfill, the backfill should be topped with a minimum 2-foot thick cap of compacted fine-grained, cohesive soil. Also, a minimum 10-foot length of trench at the entrance and exit points of buildings should be backfilled with fine-grained soils to serve as a plug to prevent water migration into structure foundation support zones.

The walls of temporary construction trenches may not be stable when excavated nearly vertical due to the potential for caving. Shoring of excavation walls or flattening of slopes will be required if excavation depths greater than 4 feet are necessary. Trenches should be located so as not to impair the bearing capacity of soils or cause settlement under foundations. As a guide, trenches parallel to foundations should be clear of a 45-degree plane extending outward and downward from the edge of the foundations. All work associated with trenches, excavations and shoring must conform to the State of California Safety Code (CAL-OSHA).

6.10 Plan Review, Observations and Testing
Once foundation and grading plans are completed, they should be forwarded to the Geotechnical Consultant for review of conformance with the intent of these recommendations and criteria presented in the pertinent sections of this report.

All excavations should be observed by a representative of this office to verify minimum embedment depths, competency of bearing soils and that the excavations are free of loose and disturbed materials. Such observations should be made prior to placement of any fill, reinforcing steel or concrete. All grading and fill compaction should be performed under the observation of and testing by a Geotechnical Consultant or his representative.

7.0 FIELD PERCOLATION TEST DATA
Initial observations in the boring after overnight pre-soaking (i.e. water remains in boring) indicated the time interval between readings should be 10 and 30 minutes for Borings B-1 and B-2 respectively. The percolation test was performed using the County of Los Angeles Public Works Publication GS200.1 procedures modified to test the cross sectional zone of typical soils within the level of anticipated storm water infiltration (e.g. approximately 1 foot to 5 feet below existing grade).

Field percolation testing was conducted on December 14, 2022. Stabilized field percolation test data indicates a field infiltration rate of approximately 0.163 and zero (0) minutes per inch (mpi) for clean water ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 29
at the location of Borings B-P1 and B-P2, respectively. Field percolation test data is presented on Plates H-1 and H-2 attached in Appendix A of this Soils Report.

Tabulated below are the results of percolation testing conducted at the locations of Borings B-P1 and B-P2, respectively, including the infiltration rates derived from the procedures outlined in L.A. County Publication GS200.1.

Field Infiltration Rate Design Infiltration Rate* Reduction Factor Boring No. (Inches/Hour) (Inches/Hour) Rf
B-P1 368.6 41.0 9
B-P2 0.0 0.0 -
*Infiltration Rate for vertical flow derived from L.A. County Public Works Publication GS200.1 procedures.

It should be noted that the subgrade materials encountered at Boring B-P1 location have been classified as undocumented fill and the tested percolation rate at Boring B-P1 location is not considered by ASE to be representative of the relatively impervious characteristic of the predominantly clayey soils encountered throughout the Site. As such, in view of the “zero” infiltration rate measured at Boring B-P2 that is deemed representative of site native soils, it is ASE’s opinion that site soils are not deemed suitable for the planning and installation of an on-site stormwater LID system within the approximate upper one to five (1-5) feet from existing site grade.

Please be informed that if installation of on-site stormwater LID system is to take place, the following factors should be noted:
• The degree of compactive effort in the upper 1 to 1.5 feet of soils above any filter material should be between 90 and 92 percent relative compaction. As any greater compactive efforts in the soil strata of water retention system construction may cause the percolation rates to reduce substantially, it is not advisable to impose significant structural loading in these areas, from a geotechnical viewpoint. • The rate of water transmission from the filter material to the soil will be limited the porosity characteristics of the fabric wrap around the filter material.

8.0 CLOSURE
This report has been prepared for the exclusive use of BOA Architecture, Inc. (the Client) and their subconsultants for use in design and construction of the Senior Center. The report has not been prepared for use by other parties, and may not contain sufficient information for purposes of other parties.

The Client is responsible for ensuring the information and recommendations contained in this report are brought to the attention of the Owner or the other design consultants, incorporated into the project plans, and implemented by project contractors. This report should be named on project plans as a part of the project specifications.

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We request and recommend notification should any of the following occur:

1. Final plans for site development indicate utilization of areas not originally proposed for construction.

2. Structural loading conditions vary from those utilized for evaluation and preparation of this report.

3. The site is not developed within 12 months following the date of this report.

If changes or delays do occur, this office should be notified and provided with finalized plans of site development for our review to enable us to provide the necessary recommendations for additional work and/or updating of the report. Any charges for such review and necessary recommendations would be at the prevailing rate at the time of performing review work.

The findings contained in this report are based upon our evaluation and interpretation of the information obtained from the limited number of test borings and the results of laboratory testing and engineering analysis. As part of the engineering analysis it has been assumed, and is expected, that the geotechnical conditions existing across the area of study are similar to those encountered in the test excavations.

However, no warranty is expressed or implied as to the conditions at locations or depths other than those excavated. Should conditions encountered during construction differ significantly from those described in this report, this office should be contacted immediately for recommendations prior to continuation of work.

Our findings and recommendations were obtained in accordance with generally accepted current professional principles and local practice in geotechnical engineering and reflect our best professional judgment. We make no other warranty, either express or implied.

These recommendations are, however, dependent on the aforementioned assumption of uniformity and upon proper quality control of engineered fill and foundations. Geotechnical observations and testing should be provided on a continuous basis during grading at the site to confirm preliminary design assumptions and to verify conformance with the intent of our recommendations. If parties other than Associated Soils Engineering, Inc. are engaged to provide geotechnical services during construction, they must be informed that they will be required to assume complete responsibility for the geotechnical phase of the project by either concurring with the recommendations in this report or providing alternative recommendations.

This concludes our scope of services as indicated in our proposal dated November 16, 2022, however, our report is subject to review by the controlling authorities for the project. Any further geotechnical services that may be required of our office to respond to questions/comments of the controlling authorities after their review of the report will be performed on a time-and-expense basis as per our current fee schedule.

We would not proceed with any response to report review comments/questions without authorization from your office.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 31
We appreciate your business and are prepared to assist you with construction-related services.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 32

APPENDIX A
The following Appendices contain the substantiating data and laboratory test results to complement the engineering evaluations and recommendations contained in the report.

Site Exploration
On December 13, 2022, field explorations were performed by drilling four (4) test borings, and two (2) percolation test borings, at the approximate locations indicated on the attached Boring Location Plan, Plate A. The exploratory borings were drilled by Martini Drilling Corporation, utilizing a truck mounted, CME75 rotary drilling rig equipped with 8-inch diameter continuous flight, hollow-stem rotary augers. The borings extended to depths of 31 feet to 51 feet 6 inches from the existing grades.

Continuous observations of the materials encountered in the borings were recorded in the field. The soils were classified in the field by visual and textural examination and these classifications were supplemented by obtaining bulk soil samples for future examination in the laboratory. Relatively undisturbed samples of soils were extracted in a Modified California barrel sampler lined with 2.416-inch diameter by one-inch high rings and tipped with tapered cutting shoe. Additional samples were obtained in a Standard Penetration sampler in accordance with specifications outlined in ASTM D1586-18 Test Method. All samples were secured in moisture-resistant bags immediately after retrieval from exploratory boring to minimize the loss of field moisture, followed by timely transportation to ASE’s laboratory for ensuing testing. Upon completion of exploration, the borings were backfilled with excavated materials and compacted by tamping, with existing AC pavement patched with cold-patch asphalt.

Description of the soils encountered, depth of samples, field density and moisture content of tested samples, respective laboratory tests performed, as well as Standard Penetration Test ("N" Values) and Modified California barrel sampler blow counts are presented in the attached Field Logs of Borings/ Field Logs of Percolation Boring (“B” Plates).

Please note that the subsurface soils descriptions presented in the Field Logs of Borings/ Field Logs of Percolation Boring have been interpreted from conditions exposed during the field investigation and/or information inferred from the reviewed geologic literature. As such, it is likely that not all of the subsurface conditions at the Site could be captured or represented. It is therefore essential that the Geotechnical Consultant’s engineer or geologist should be on site during excavation/grading and pipeline construction such that information/recommendations deciphered during preliminary geotechnical investigation phase could be verified and amended, as appropriate
Plate A Boring Location Plan
Plates B-1 through B-4 Field Logs of Borings
Plates B-P1 and B-P2 Field Logs of Percolation Boring

NOT TO SCALE
Associated Soils Engineering, Inc.

Boring Location Plan
Project Name:

Proposed Senior Center
2509 Rosecrans Avenue, Gardena 2860 Walnut Avenue
Signal Hill, CA 90755
Plate A
Proj. No.: 7099.22
Tel (562) 426-7990 Fax (562) 426-1842 Date: February, 2023 B-1
51'
Designated boring number
Approximate boring location
Terminal depth of boring
LEGEND
B-P1
5'3"
B-3
46'6"
Approximate Site limits
B-1
31'
B-2
51'6"
B-P2
5'3"
B-4
31'
FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
10 15
0 5
10 15
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
1 7099.22
2 Groundwater encountered at 22'.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
31 feet
Automatic
140 Lb./±30 In.

N/A
ASPHALTIC CONCRETE PAVEMENT: 3.0"
AGGREGATE BASE MATERIAL: 7.0"
CLAY: Dark grayish brown, moist, stiff
SANDY CLAY: Grayish brown to dark
yellowish brown, moist, stiff
SILTY CLAY: Olive, moist, stiff
same as above, with very hard gray
siltstone inclusions
25(Ring)
57(Ring)
39(Ring)
31(Ring)
CL/CH
CL
CL
110.2
121.4
110.9
117.0

MAX DENSITY,
REMOLD
SHEAR,

ATTERBERG,
EXPANSION, RVALUE,

CORROSIVITY
SHEAR
CONSOL

18.4 15.6

17.2 14.2

FIELD LOG OF BORING B -
Sheet 2 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
20 25
30 20
25 30
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
1 7099.22
2 SANDY SILT AND SILTY CLAY: Olive,
moist, firm
same as above, olive brown
becomes very moist to wet
increased sand
no recovery
33(Ring)
27(Ring)
47(Ring)
ML/CL
112.4
106.4

18.4 21.0
FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
10 15
0 5
10 15
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
2 7099.22
3 Groundwater encountered at 20'.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
51 feet 6 inches
Automatic
140 Lb./±30 In.

N/A
ASPHALTIC CONCRETE PAVEMENT: 5.0"
AGGREGATE BASE MATERIAL: 6.0"
CLAY: Dark gray, moist, stiff, trace fine to
medium sand
SANDY CLAY: Brown to yellowish brown,
moist, stiff, fine-grained sand
SILTY CLAY: Dark olive brown, damp, stiff,
some very fine sand
SILTY CLAY: Brownish gray, moist, stiff
same as above
14(Ring)
32(Ring)
47(Ring)
34(Ring)
CH
CL
CL
CL
110.4
113.3
127.1
113.9
SHEAR
CONSOL

17.6 16.5

8.8 16.7

FIELD LOG OF BORING B -
Sheet 2 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
20 25
30 35
40 20
25 30
35 40
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
2 7099.22
3 SILTY CLAY: Olive, moist, firm
SANDY SILT AND CLAYEY SILT: Olive
brown, moist, fine-grained sand
CLAYEY SILT AND SILTY CLAY: Olive to
dark yellowish brown, moist, firm to stiff
SILTY CLAY WITH SAND: Olive gray to
olive brown, moist, firm to stiff, fine-grained
sand
39(Ring)
27(Ring)
17(SPT)
71(Ring)
CL
ML
ML-CL
CL
112.1
105.2
102.7

18.0 21.2

21.4 23.0

FIELD LOG OF BORING B -
Sheet 3 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
40 45
50 40
45 50
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
2 7099.22
3 SILTY CLAY WITH SAND: Olive gray to
olive brown, moist, firm to stiff, fine-grained
sand
CLAY WITH SILT: Olive gray, moist, stiff,
with scattered very hard gray siltstone
inclusions
CLAYEY SILT AND SILTY CLAY: Olive
gray, moist, firm
22(SPT)
67(Ring)
39(SPT)
CL
CH
ML-CL
110.0

22.2 19.3

26.7 FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
10 15
0 5
10 15
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
3 7099.22
3 Groundwater encountered at 25'.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
46 feet 6 inches
Automatic
140 Lb./±30 In.

N/A
CLAY: Dark grayish brown, damp to moist,
stiff
SANDY SILT: Light brown, damp, finegrained sand
CLAY: Olive, moist, stiff
same as above
33(Ring)
37(Ring)
60(Ring)
19(SPT)
CH
ML
CH
119.6
121.7
116.7

8.7 14.7

7.1 16.6

FIELD LOG OF BORING B -
Sheet 2 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
20 25
30 35
20 25
30 35
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
3 7099.22
3 SILTY CLAY: Olive, moist, soft
SANDY CLAY AND CLAYEY SAND: Olive,
moist, soft to firm
SILTY CLAY AND CLAYEY SAND: Olive
brown,moist, firm to hard, fine to very finegrained sand SANDY CLAY AND CLAYEY SAND: Dark
olive gray, wet,firm clay, soft sand, fine to
medium-grained ssand
22(Ring)
22(SPT)
74/11"
(Ring)
29(SPT)
CL
CL- SC
CL- SC
CL- SC
109.0
112.7

16.2 20.6

16.7 33.2

FIELD LOG OF BORING B -
Sheet 3 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
40 45
40 45
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
3 7099.22
3 SILTY CLAY: Olive brown, moist, stiff
SILTY CLAY: Olive, very moist, firm to stiff
44(Ring)
25(SPT)
CL
CL
108.6 19.4

28.0 FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
10 15
0 5
10 15
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
4 7099.22
2 Groundwater encountered at 30'.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
31 feet
Automatic
140 Lb./±30 In.

N/A
ASPHALTIC CONCRETE PAVEMENT: 4.5"
AGGREGATE BASE MATERIAL: 7.0"
CLAY: Dark gray to to dark brown, soft to
firm
SANDY CLAY AND CLAYEY SAND: Dark
yellowish brown, moist, dense, fine-grained
sand, trace coarse sand
CLAY WITH SAND: Dark yellowish brown,
damp to moist, stiff, fine-grained sand
CLAY: Brown, damp to moist, very stiff
no recovery
same as above, olive
12(Ring)
14(Ring)
60(Ring)
40(Ring)
46(Ring)
CH
CL-SC
CH
CH
110.7
130.8
116.4
116.5

18.0 10.8

16.7 16.3

FIELD LOG OF BORING B -
Sheet 2 of
Project:

Location: Project No.

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)WELLCOMPLETIONOTHER TESTS
20 25
30 20
25 30
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
4 7099.22
2 SILTY CLAY: Olive, moist, firm to stiff, with
hard gray siltstone inclusions
SANDY CLAY AND CLAYEY SAND: Olive
to dark yellowish brown, moist, firm, fine to
medium-grained sand
SILTY CLAY: Olive gray to olive brown,
moist, firm
28(Ring)
22(Ring)
19(Ring)
CL
CL-SC
CL
118.3
107.4
108.2

14.0 18.6

16.4 FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
0 5
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
P1
7099.22
1 Groundwater not encountered.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
5 feet 3 inches
Automatic
140 Lb./±30 In.

N/A
ASPHALTIC CONCRETE PAVEMENT: 3.0"
AGGREGATE BASE MATERIAL: 7.0"
CLAY WITH SILT: Olive gray, moist, soft
SILTY SAND WITH CLAY: Yellowish
brown, moist, fine to medium-grained sand
NOTE: 5 feet 3 inches (5'3") length of 6-
inch I.D. slotted PVC pipe placed in boring
with annular area backfilled with pea
gravel to surface. Two (2.0) inches of pea
gravel placed at bottom of pipe.

Percolation test performed after overnight
presoaking.

19.8 14.0
6(SPT)
CL-CH
SM

PERCOLATION
FILL
FILL
FIELD LOG OF BORING BSheet 1 of
Project:

Location: Project No.

Dates(s) Drilled:

Drilled By:

Rig Make/Model:

Drilling Method:

Hole Diameter:

Comments:

Logged By:

Total Depth:

Hammer Type:

Hammer Weight/Drop:

Surface Elevation:

DEPTH (Ft.)ELEVATION
SAMPLE
INTERVALS BULK DRIVE TYPE, "N" (Blows/ft.)

LITHOLOGYUSCS

GEOTECHNICAL DESCRIPTION
DRYDENSITY (Pcf)

MOISTURE
CONTENT (%)

WELLCOMPLETION

OTHER TESTS
0 5
0 5
(MSL)
or
ASE Proposed Senior Center - Gardena
2509 Rosecrans Avenue
P2
7099.22
1 Groundwater not encountered.
12/13/22
Martini Drilling Corp.

CME75
Hollow-stem Auger
8 inches
John Whitney
5 feet 3 inches
Automatic
140 Lb./±30 In.

N/A
ASPHALTIC CONCRETE PAVEMENT: 3.0"
AGGREGATE BASE MATERIAL: 7.0"
CLAY: Very dark gray clay, moist, stiff
NOTE: 5 feet 3 inches (5'3") length of 6-
inch I.D. slotted PVC pipe placed in boring
with annular area backfilled with pea
gravel to surface. Two (2.0) inches of pea
gravel placed at bottom of pipe.

Percolation test performed after overnight
presoaking.
as above 20.1

CH PERCOLATION
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 33
Laboratory Tests
After samples were visually classified in the laboratory, a testing program aimed at generating sufficient data for subsequent evaluation was established and implemented. • Moisture Content and Density Tests
The undisturbed soil retained within the rings of the Modified California barrel sampler was tested in the laboratory to determine in-place dry density and moisture content. Test results are presented on the Field Logs of Borings (“B” Plates).
• Consolidation and Direct Shear Tests
Consolidation (ASTM D 2435-11 Test Method) and direct shear (ASTM D 3080-11 Test Method) tests were performed on selected relatively undisturbed and remolded samples to determine the settlement characteristics and shear strength parameters of various soil samples, respectively. The results of these tests are shown graphically on the appended “C” and “D” Plates. • Atterberg Limits Tests
The Atterberg Limits (liquid limit-plastic limit and plasticity index) were determined on selected soils samples in accordance with ASTM D4318-17e1 Test Method, Method A (multi-point test), dry preparation procedures. The test results are as follows and are presented on the appended Plate E-1.

Sample ID Liquid Limit, LL (%) Plastic Limit, PL (%) Plasticity Index, PI Soil Classification B-1,B-4 @ 1’-5’ 57 13 44 CH
• Soil Corrosivity Tests
Tests of soluble sulfate and chloride contents were performed in accordance with CTM’s 417 and 422, respectively, to assess the degree of corrosivity of the subgrade soils with regard to concrete and normal grade steel. Resistivity and ph-value tests were performed in accordance with ASTM G187-18 Test Method and CTM 643 to assess the degree of corrosivity of the subgrade soils with regard to ferrous metal piping.

The test results are shown below.

Sample ID
Sulfate Content (1)
(%)/
Exposure Category
Chloride Content (2)
(ppm) /
Exposure Category
Resistivity (3)
(OHM-cm)/
Exposure Aggressiveness
PhValue(4)
B-1&B-4 @ 1’-5’ 0.036/ S0 14 / C0 679 / Very Corrosive 8.51 (1) California Test Method 417. (2) California Test Method 422. (3) ASTM G187-18 Test Method. (4) California Test Method 643.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 34
Laboratory Tests – continued
• Maximum Dry Density/Optimum Moisture Content Test
A maximum density test was conducted in accordance with ASTM D1557-12, Method A, using 5 equal layers, 25 blows each layer, 10-pound hammer, 18 inch drop in a 1/30 cubic foot mold. The results are as follows:

Sample ID Maximum Dry Density (pcf) Optimum Moisture Content (%) Material Classification B-1&B-4 @ 1’-5’ 119.5 15.5 CH
• Expansion Test
An expansion test was performed on a soil sample to determine the swell characteristics. The expansion test was conducted in accordance with ASTM D4829-18 test procedures. The expansion sample was remolded to approximately 90 percent relative compaction at near optimum moisture content subjected to 144 pounds per square foot surcharge load and were saturated.

Sample ID Molded Dry
Density (pcf)
Molded Moisture
Content (%)
%
Saturation
Expansion
Index (EI)
Expansion
Classification
B-1&B-4 @ 1’-5’ 107.9 14.33 69.1 94 High
• "R" Value Analysis
The following "R" Value Stabilometer results were obtained in accordance with California 301 test procedures.

Stabilometer Results Trial #1
Dry Density as molded, pcf 110.4
Moisture content as molded, % 16.2
Expansion Pressure, dial reading 104 56
Exudation Pressure, psi 705
Stabilometer "R" Value <5
Classification: Black Clay w/ Calc Concretions
Source: Boring B-1 & B-4 @ 1’q - 5'
"R" Value equilibrium (300 psi Exudation Pressure) = <5 Plates C-1 and C-2 Uni-axial Consolidation Test Results Plates D-1 through D-3 Direct Shear Test Results
Plate E-1 Atterberg Limits Test Results
Plates H-1 and H-2 Percolation Data Sheets
Sample Location B-1 @ 10' Dry Density (pcf) 110.9
Moisture (%) 17.2
Sample Type Ring
Sample Description
Remark Undisturbed sample
Project:

Plate
C-1
Project No.: 7099.22 Date:

Clay with Sand
Associated Soils Engineering, Inc. Proposed Senior Center 2509 Rosecrans Avenue, Gardena, CA
2860 Walnut Avenue Result of Uniaxial Consolidation/Swelling Test of On-Site Soil
(ASTM D2435-11 Test Method) Signal Hill, CA 90755
Tel (562) 426-7990 Fax (562) 426-1842 February, 2023
-1
0 1
2 3
4 5
6 7
8 0.1 1 10 100
Deformation (%)
Normal Pressure (ksf)
Loading Unloading
Tap Water Inundation
Sample Location B-2 @ 5' Dry Density (pcf) 113.3
Moisture (%) 16.5
Sample Type Ring
Sample Description
Remark Undisturbed sample
Project:

Plate
C-2
Project No.: 7099.22 Date:

Associated Soils Engineering, Inc. Proposed Senior Center 2509 Rosecrans Avenue, Gardena, CA
2860 Walnut Avenue Result of Uniaxial Consolidation/Swelling Test of On-Site Soil
(ASTM D2435-11 Test Method) Signal Hill, CA 90755
Tel (562) 426-7990 Fax (562) 426-1842 February, 2023
Clayey Silt
0 1
2 3
4 5
6 7
8 9
10 0.1 1 10 100
Deformation (%)
Normal Pressure (ksf)
Loading Unloading
Tap Water Inundation
Sample B-1 @ 5' Dry Density (pcf) 121.4
Description Moisture Content (%) 15.6
f-angle (degree) 19.0
Cohesion (ksf) 0.540
Project:

Plate
D-1
Tel (562) 426-7990 Fax (562) 426-1842 Project No.: 7099.22 Date: February, 2023 Sandy Clay
Ultimate
(Residual)
Associated Soils Engineering, Inc. Proposed Senior Center 2509 Rosecrans Avenue, Gardena, CA
2860 Walnut Avenue Direct Shear Test Result
Signal Hill, CA 90755 (ASTM D 3080-11 Test Method)

0.0 0.5

1.0 1.5

2.0 2.5

0.0 0.5 1.0 1.5 2.0 2.5
Shear Stress (ksf)
Normal Stress (ksf)
Residual (Ultimate) Values
Sample B-2 @ 3' Dry Density (pcf) 110.4
Description Moisture Content (%) 17.6
f-angle (degree) 20.5
Cohesion (ksf) 0.575
Project:

Plate
D-2
Tel (562) 426-7990 Fax (562) 426-1842 Project No.: 7099.22 Date: February, 2023 Sandy Clay -Clay
Ultimate
(Residual)
Associated Soils Engineering, Inc. Proposed Senior Center 2509 Rosecrans Avenue, Gardena, CA
2860 Walnut Avenue Direct Shear Test Result
Signal Hill, CA 90755 (ASTM D 3080-11 Test Method)

0.0 0.5

1.0 1.5

2.0 2.5

0.0 0.5 1.0 1.5 2.0 2.5
Shear Stress (ksf)
Normal Stress (ksf)
Residual (Ultimate) Values
Sample B-1, B-4@ 1'-5' Dry Density (pcf) 107.6
Description Moisture Content (%) 15.5
f-angle (degree) 5.0
Cohesion (ksf) 0.325
Project:

Plate
D-3
Tel (562) 426-7990 Fax (562) 426-1842 Project No.: 7099.22 Date: February, 2023 Clay with Calcareous Concretions
Ultimate
(Residual)
Associated Soils Engineering, Inc. Proposed Senior Center 2509 Rosecrans Avenue, Gardena, CA
2860 Walnut Avenue Direct Shear Test Result
Signal Hill, CA 90755 (ASTM D 3080-11 Test Method)

0.0 0.5

1.0 1.5

2.0 2.5

0.0 0.5 1.0 1.5 2.0 2.5
Shear Stress (ksf)
Normal Stress (ksf)
Sample remolded to 90%
relative compaction per ASTM
D1557-12 Test Method
Residual (Ultimate) Values
Associated Soils Engineering, Inc.

Project Name:

Project No.: Sample ID:

Visual Sample Description:

X
X
1 2 3 1 2 3
39 28 18
b1 c1 F A2 B1 C1

11.69 13.22 12.83 16.06 15.92 15.05

10.92 12.27 11.76 14.28 14.21 13.38

4.28 4.30 4.28 11.00 11.20 10.57

11.60 11.92 14.30 54.27 56.81 59.43
A = -6.6360 x = 25
B = 78.7060 LL = 57
57 12
45 CH
"A" Line: PI = 0.73 · (LL-20)
"U" Line: Upper limit of plasticity per Casagrande,
PI = 0.9 · (LL-8)
For the tested LL:

PI at "A" Line = 27.0
PI at "U" Line = 44.1
USCS Classification =
Plate No.: E-1
Procedures Used
Wet Preparation - Multipoint - Wet
Dry Preparation - Multipoint - Dry Procedure B One-Point Test Procedure A Multipoint Test
LL trendline = A · ln(x) + B
Moisture Content (%)
Liquid Limit (LL) =
Plastic Limit (PL) =
Plasticity Index (PI) =
Test No.

Number of Blows (N)
Container No.

Wet Wt. of Soil + Container (g)
Dry Wt. of Soil + Container (g)
Wt. of Container (g)
7099.22
Proposed Senior Center, 2509 Rosecrans Avenue, Gardena, CA B-1, B-4 @1'-5'
Clay

PLASTIC LIMIT LIQUID LIMIT
35 40
45 50
55 60
65 10 100
Moisture Content (%)
Number of Blows (N)
20 25 30 40 50 60 70 80 90
0 5
10 15
20 25
30 35
40 45
50 55
60 0 10 20 30 40 50 60 70 80 90 100
PI
LL
CL or OL
ML or OL
MH or OH
CH
CL-ML
For classification of finegrained soils and fine-grained fraction of coarse-grained
soils

ATTERBERG LIMITS TEST
(ASTM D 4318-17e1 Test Method)
7 4
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 35

PERCOLATION DATA SHEET
Project: On-Site Storm Water Dispersal Job No.: 7099.22 Proposed Senior
2509 Rosecrans Avenue, Gardena, CA
Test Hole No.: P-1 Date Excavated: 12/14/2022 Depth of Test Hole: 5' 3" Soil Classification: FILL: Clay and Sand Presoak: √
Percolation Tested By: JW/CO Date: 12/14/2022 Note: 2.0” Gravel at Bottom of Pipe

USE NORMAL SANDY (CROSS ONE) SOIL CRITERIA
Time
Time
Interval
(Min.)
Total
Elapsed
Time
(Min.)
Initial
Water Level
(Inches)
Final
Water Level
(Inches)
∆ In Water
Level
(Inches)
Percolation
Rate
(Min./Inches)
10:07
10:17 10 10 -18.00 -61.00 -43.00 0.233
10:26
10:36 10 20 -18.00 -61.00 -43.00 0.233
10:38
10:41 3 23 -18.00 -61.00 -43.00 0.700
10:43
10:45 2 25 -18.00 -61.00 -43.00 0.047
10:48
10:53 5 30 -18.00 -61.00 -43.00 0.116
10:54
12:00 6 36 -18.00 -61.00 -43.00 0.140
12:01
12:07 7 43 -18.00 -61.00 -43.00 0.163
12:08
12:15 7 50 -18.00 -61.00 -43.00 0.163
PLATE H-1
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 36

PERCOLATION DATA SHEET
Project: On-Site Storm Water Dispersal Job No.: 7099.22 Proposed Gardena Senior Center
2509 Rosecrans Ave., Gardena, CA
Test Hole No.: P-2 Date Excavated: 12/14/2022 Depth of Test Hole: 5' 3" Soil Classification: Clay Presoak: √
Percolation Tested By: CO/JW Date: 12/14/2022 Note: 2.0” Gravel at Bottom of Pipe

USE NORMAL SANDY (CROSS ONE) SOIL CRITERIA
Time
Time
Interval
(Min.)
Total
Elapsed
Time
(Min.)
Initial
Water Level
(Inches)
Final
Water Level
(Inches)
∆ In Water
Level
(Inches)
Percolation
Rate
(Min./Inches)
8:19
8:49 30 30 -7.75 -7.75 0 0
8:49
9:19 30 60 -7.75 -7.75 0.25 240
9:19
9:49 30 90 -7.75 -8.125 0.375 80
9:49
10:19 30 120 -8.125 -8.875 0.75 0.025
10:19
10:49 30 150 -8.875 -8.875 0 0
10:49
11:19 30 180 -8.875 -8.875 0 0
11:19
11:49 30 210 -8.875 -8.875 0 0
11:49
12:19 30 240 -8.875 -8.875 0 0
PLATE H-2
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842 Page 37

APPENDIX B - SITE FAULTING/SEISMICITY DATA
Plates I-1 and I-2 EQFAULT – Deterministic Estimation of Peak Acceleration from Digitized Faults

ASE#7099.22 PLATE I-1
***********************
* *
* E Q F A U L T *
* *
* Version 3.00 *
* *
***********************

DETERMINISTIC ESTIMATION OF

PEAK ACCELERATION FROM DIGITIZED FAULTS
JOB NUMBER: 7099.22
DATE: 01-16-2023
JOB NAME: Proposed Senior Center
2509 Rosecrans Avenue, Gardena, CA
CALCULATION NAME: GardenaSeniorCtr
FAULT-DATA-FILE NAME: C:\Program Files\EQFAULT1\Cgsflte.dat SITE COORDINATES:

SITE LATITUDE: 33.9023
SITE LONGITUDE: 118.3211
SEARCH RADIUS: 62 mi
ATTENUATION RELATION: 20) Sadigh et al. (1997) Horiz. - Soil UNCERTAINTY (M=Median, S=Sigma): M Number of Sigmas: 0.0 DISTANCE MEASURE: clodis
SCOND: 0
Basement Depth: 5.00 km Campbell SSR: Campbell SHR:

COMPUTE PEAK HORIZONTAL ACCELERATION
FAULT-DATA FILE USED: C:\Program Files\EQFAULT1\Cgsflte.dat MINIMUM DEPTH VALUE (km): 0.0
ASE#7099.22 PLATE I-2

EQFAULT SUMMARY

DETERMINISTIC SITE PARAMETERS
------------------------------------------------------------------------------- | |ESTIMATED MAX. EARTHQUAKE EVENT
| APPROXIMATE |-------------------------------
ABBREVIATED | DISTANCE | MAXIMUM | PEAK |EST. SITE
FAULT NAME | mi (km) |EARTHQUAKE| SITE |INTENSITY
| | MAG.(Mw) | ACCEL. g |MOD.MERC.
================================|==============|==========|==========|========= NEWPORT-INGLEWOOD (L.A.Basin) | 2.2( 3.5)| 7.1 | 0.468 | X PALOS VERDES | 6.5( 10.4)| 7.3 | 0.342 | IX
PUENTE HILLS BLIND THRUST | 9.7( 15.6)| 7.1 | 0.329 | IX SANTA MONICA | 12.2( 19.7)| 6.6 | 0.220 | IX
UPPER ELYSIAN PARK BLIND THRUST | 12.6( 20.2)| 6.4 | 0.189 | VIII HOLLYWOOD | 13.5( 21.7)| 6.4 | 0.177 | VIII
MALIBU COAST | 15.0( 24.2)| 6.7 | 0.192 | VIII
RAYMOND | 16.2( 26.0)| 6.5 | 0.160 | VIII
VERDUGO | 18.3( 29.4)| 6.9 | 0.179 | VIII
WHITTIER | 18.3( 29.5)| 6.8 | 0.131 | VIII
ANACAPA-DUME | 22.2( 35.7)| 7.5 | 0.207 | VIII
SIERRA MADRE | 22.6( 36.4)| 7.2 | 0.172 | VIII
NORTHRIDGE (E. Oak Ridge) | 23.1( 37.1)| 7.0 | 0.150 | VIII SIERRA MADRE (San Fernando) | 25.7( 41.4)| 6.7 | 0.110 | VII SAN JOAQUIN HILLS | 26.5( 42.6)| 6.6 | 0.099 | VII
CLAMSHELL-SAWPIT | 26.5( 42.7)| 6.5 | 0.092 | VII
SAN JOSE | 27.0( 43.5)| 6.4 | 0.083 | VII
SAN GABRIEL | 28.8( 46.4)| 7.2 | 0.104 | VII
SANTA SUSANA | 30.3( 48.7)| 6.7 | 0.090 | VII
CHINO-CENTRAL AVE. (Elsinore) | 31.6( 50.8)| 6.7 | 0.086 | VII NEWPORT-INGLEWOOD (Offshore) | 31.7( 51.0)| 7.1 | 0.088 | VII SIMI-SANTA ROSA | 35.0( 56.3)| 7.0 | 0.094 | VII
HOLSER | 36.1( 58.1)| 6.5 | 0.062 | VI
CUCAMONGA | 37.3( 60.0)| 6.9 | 0.081 | VII
ELSINORE (GLEN IVY) | 39.4( 63.4)| 6.8 | 0.055 | VI
OAK RIDGE (Onshore) | 39.4( 63.4)| 7.0 | 0.081 | VII
SAN CAYETANO | 44.7( 72.0)| 7.0 | 0.069 | VI
SAN ANDREAS - 1857 Rupture M-2a | 45.5( 73.3)| 7.8 | 0.093 | VII SAN ANDREAS - Whole M-1a | 45.5( 73.3)| 8.0 | 0.106 | VII SAN ANDREAS - Mojave M-1c-3 | 45.5( 73.3)| 7.4 | 0.071 | VI SAN ANDREAS - Cho-Moj M-1b-1 | 45.5( 73.3)| 7.8 | 0.093 | VII CORONADO BANK | 49.3( 79.3)| 7.6 | 0.074 | VII
SAN JACINTO-SAN BERNARDINO | 52.3( 84.2)| 6.7 | 0.035 | V OAK RIDGE(Blind Thrust Offshore)| 53.2( 85.6)| 7.1 | 0.060 | VI SAN ANDREAS - SB-Coach. M-2b | 54.2( 87.3)| 7.7 | 0.071 | VI SAN ANDREAS - SB-Coach. M-1b-2 | 54.2( 87.3)| 7.7 | 0.071 | VI SAN ANDREAS - San Bernardino M-1| 54.2( 87.3)| 7.5 | 0.061 | VI CHANNEL IS. THRUST (Eastern) | 54.5( 87.7)| 7.5 | 0.078 | VII SAN ANDREAS - Carrizo M-1c-2 | 56.0( 90.2)| 7.4 | 0.055 | VI VENTURA - PITAS POINT | 56.1( 90.3)| 6.9 | 0.047 | VI
CLEGHORN | 56.7( 91.2)| 6.5 | 0.026 | V
SANTA YNEZ (East) | 57.2( 92.0)| 7.1 | 0.042 | VI
ELSINORE (TEMECULA) | 58.6( 94.3)| 6.8 | 0.032 | V
OAK RIDGE MID-CHANNEL STRUCTURE | 59.9( 96.4)| 6.6 | 0.034 | V ******************************************************************************* -END OF SEARCH- 44 FAULTS FOUND WITHIN THE SPECIFIED SEARCH RADIUS.

THE NEWPORT-INGLEWOOD (L.A.Basin) FAULT IS CLOSEST TO THE SITE.

IT IS ABOUT 2.2 MILES (3.5 km) AWAY.

LARGEST MAXIMUM-EARTHQUAKE SITE ACCELERATION: 0.4680 g
ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842

APPENDIX C - LIST OF REFERENCES

1. Blake, T.F., 2000, EQFAULT, A Computer Program for the Deterministic Predication of Peak Horizontal Acceleration from Digitized California Faults.

2. Guidelines for Evaluating and Mitigating Seismic Hazards in California, 2008, Special Publication 117A, California Geological Survey.

3. California Geological Survey, 1986, Special Studies Zones Revised Official Map, Inglewood Quadrangle, released July 1.

4. California Geological Survey, 1999, Seismic Hazard Zones Official Map, Inglewood Quadrangle Seismic Hazard Zones, released March 25.

5. California Geological Survey, 1998, Seismic Hazard Zone Report 027, Seismic Hazard Zone Report for the Inglewood 7.5-Minute Quadrangle, Los Angeles County, California.

6. California Building Code, 2022 Edition: Sacramento, CA, California Building Standards Commission, 2 Volumes.

7. Legg, M.R., Borrero, J.C., and Synolakis, C.E., 2003, Evaluation of Tsunami Risk to Southern California Coastal Cities, The 2002 NEHRP Professional Fellowship Report, PF 2002-11, Earthquake Engineering Research Institute.

8. Soil Mechanics Design Manual 7.1 (Navfac DM-7.1), 1982, Department of the Navy, Naval Facilities Engineering Command, p. 347.

9. Foundation and Earth Structures Design Manual 7.2 (Navfac DM-7.2), 1982, Department of the Navy, Naval Facilities Engineering Command, p. 347.

10. Stewart, J.P., Whang, D.H., Moyneur, M., and Duku, P., 2004, Seismic Compression of As-Compacted Fill Soils with variable Level of Fines content and Fines Plasticity, CUREE Publication No. EDA-05, 101p.

11. 2008 Interactive Deaggregations, Hazards Program, United States Geological Survey, website:
http:/eqint.cr.usgs.gov/deaggint/2008/dndez.php.

12. Settlement Analysis, 1994, Technical Engineering and Design Guides as adapted from the US Army Corps of Engineers, No. 9, published by American Society of Civil Engineers, New York, NY, p. 136.

13. Minimum Design Loads for Buildings and Other Structures, 2016, American Society of Civil Engineers, ASCE Standard 7-16.

14. Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary, 2019, published by American Concrete Institute, Farmington Hill, MI, 623p.

15. Federal Emergency Management Agency, 2008, National Flood Insurance Program, Flood Insurance Rate Map, Los Angeles County, California and Incorporated Areas, Panel 1790 of 2350, Map Number 06037C1790F, effective date September 26.

16. Corrosion Guidelines, Version 2.0, November 2012, Published by California Department of Transportation (Caltrans), 44p.

ASSOCIATED SOILS ENGINEERING, INC. Project No.: 7099.22 2860 Walnut Avenue, Signal Hill CA 90755 February 22, 2023 Tel: (562) 426-7990 * Fax: (562) 426-1842
APPENDIX C - LIST OF REFERENCES - continued

17. Bridge Design Specifications, September 2003, Published by California Department of Transportation (Caltrans).

18. Civil Engineering Pavements, Design Manual 5.4 (DM5.4), 1979, Department of the Navy, Naval Facilities Engineering Command, 60pp.

19. Winterkorn, H.F., and Fang, H.Y., 1976, Foundation Engineering Handbook: New York, NY, Van Nostrand Reinhold, 751p.

20. California Geological Survey, Revised 1994, Fault Rupture Hazard Zones in California, Special Publication 42.

21. California Geological Survey, 1998, Map of Known Active Fault Near-Source Zones in California and Adjacent Portions of Nevada, Published February.

22. Cao, T., Bryant, W.A. Rowshandel, B., Branum, D., and Wills, C.J., 2003, the Revised 2002 California Probabilistic Seismic Hazard Maps, California Geological Survey.

23. Peterson, M.D., Bryant, W.A., Cramer, C.H., Cao, T., Reichle, M., Frankel, A.D., Lienkaemper, J.J., McCrory, P.A., and Schwartz, D.P., 1996, Probabilistic Seismic Hazard Assessment for the State of California, California Department of Conservation, Division of Mines and Geology, Open-File Report 96-706.

24. Recommended Procedures for Implementation of DMG Special Publication 117: Guidelines for Analyzing and Mitigating Liquefaction in California, 1999, Southern California Earthquake Center, University of Southern California.

25. Krinitzsky, Ellis L., Gould, James P. and Edinger, Peter H., 1993, Fundamentals of Earthquake Resistant Construction, John Wiley & Sons, Inc.

26. California Geological Survey, November 2019, Note 48 – Checklist for the Review of Engineering Geology and Seismology Reports for California Public Schools, Hospitals, and Essential Services Buildings, 2p.

27. California Division of the State Architect, IR A-4 – Geohazard Report Requirements, revised June 11, 2021, 7p.

28. Wood, N.J., Ratliff, J., and Peters, J., Community Exposure to Tsunami Hazards in California, 2013, Scientific Investigations Report 2012-5222, published by U.S. Geological Survey.

29. Standard Requirements for Design of Shallow Concrete Foundations on Expansive Soils, 4th Edition, dated May 2008, issued by Post-tensioning Institute, 25p.

30. Standard Requirements for Design of Shallow Concrete Foundations on Expansive Soils, 4th Edition, dated May 2008, issued by Post-tensioning Institute, 17 p.

31. Design of Post-Tensioned Slabs-on-Ground, 3rd Edition, 2004, issued by Post-tensioning Institute,106p.






    
 




   ! "

JOB NUMBER - J.N. 505

CITY OF GARDENA

DEMOLITION PLANS
FOR

ROSECRANS COMMUNITY CENTER

DEMOLITION PHASE
P.W.

F. D .

P.D. C. H .
91 N.C.C

LOS ANGELES COUNTY

EL SEGUNDO BLVD

CITY OF LOS ANGELES

MAGNOLIA
AVE.

MANHATTAN BEACH BLVD.

MARINE AVE.

ROSECRANS AVE.

REDOND
BEACH
BLVD.
158 th
ST.
161st
ST.

TORRANCE

CITY OF LOS ANGELES
GRAMERCY PL.ARTESIA BLVD.
166 th ST.

CRENSHAW BLVD

HAWTHORNE
135 th ST. AVE. AVE. VERMONT AVE. WESTERN NORMANDIE
168th
ST. 170 th
ST.

GARDENA BLVD
162 nd
ST. 164th
ST. VAN NESS AVE.
182 nd

ELECTRIC
ST.

LOS ANGELES COUNTY
405
110

PROJECT

LOCATION

LOS ANGELES COUNTY

EL SEGUNDO BLVD
MANHATTAN BEACH BLVD.

MARINE AVE.

ROSECRANS AVE.
158 th
ST.

HAWTHORNE
135th ST.

AVE.

LOS ANGELES COUNTY

PROJECT

LOCATION
OWNER

CITY OF GARDENA
1700 WEST 162ND ST 90247
CONTACT: KELVIN KWAK
E: [email protected]

ARCHITECT

BOA ARCHITECTURE
1511 COTA AVENUE
LONG BEACH, CA 90813
CONTACT: EDWARD LOK NG
E: [email protected]
T: 562-912-7900

1. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS AND CONDITIONS BEFORE STARTING WORK.

2. THE ENGINEER DOES NOT WARRANT THE ACCURACY OF SCALED DIMENSIONS ON ANY PLAN. ALL DIMENSIONS SHALL BE AS DESIGNATED ON THE PLANS. THE

CONTRACTOR SHALL PROTECT ALL PUBLIC AND PRIVATE PROPERTY

3. DURING THE PERFORMANCE OF WORK DONE UNDER THE CONTRACT. THE

CONTRACTOR SHALL TAKE THE NECESSARY PRECAUTIONS TO AVOID ANY DAMAGE TO ANY STRUCTURES ADJACENT TO THE PROJECT BOUNDARIES.

4. EXISTING UTILITIES SHOWN ARE BASED ON AVAILABLE RECORDS OF PARENT UTILITY

COMPANIES AND MAY NOT ACCURATELY REPRESENT THEIR ACTUAL LOCATIONS.PRIOR TO BEGINNING ANY CONSTRUCTION, THE CONTRACTOR SHALL

VERIFY THE ACTUAL LOCATIONS (VERTICAL AND HORIZONTAL) OF ALL UTILITIES, IN THE

FIELD OR COORDINATE SUCH INDEPENDENT VERIFICATION WITH THE PARENT UTILITY COMPANIES AND PROVIDE THE CITY WITH THE POTHOLE INFORMATION. THE

CONTRACTOR SHALL PROTECT IN PLACE OR COORDINATE WITH PARENT COMPANY

FOR THE RELOCATION OF CONFLICTING UTILITIES ENCOUNTERED DURING CONSTRUCTION.

5. RECONSTRUCT EXISTING UTILITY VALVE COVERS, UTILITY BOXES, TRAFFIC SIGNAL BOXES, ETC. TO FINISH GARDE. PAYMENT SHALL BE INCLUDED IN THE APPLICABLE

CONSTRUCTION BID ITEM AND REFER TO CONSTRUCTION NOTE AND/OR SPECIFICATIONS.

6. PROVIDE TRAFFIC CONTROL PER TECHNICAL PROVISIONS.

7. ALL SURVEY CENTERLINE TIES AND MONUMENTS THAT ARE DAMAGED OR REMOVED SHALL BE RE-ESTABLISHED. THE SURVEYOR SHALL ALSO ESTABLISH CENTERLINE

MONUMENTS AND TIES AT ALL STREET INTERSECTIONS WITHIN THE PROJECT LIMITS WHERE NONE EXISTED PRIOR TO CONSTRUCTION. SEE TECHNICAL PROVISIONS.

8. 24 HOUR NOTICE FOR ALL INSPECTIONS REQUIRED.

9. CONTRACTORS SHALL REMOVE AND DISPOSE OF ALL TRASH AND BROKEN BRANCHES BEFORE AND AFTER PAVING.

10. PRIOR TO CUTTING OF ANY ROOTS, CALL PARKS DIVISION AT (310) 217-9564 FOR APPROVAL.

11. CONTRACTOR SHALL BE RESPONSIBLE FOR COORDINATION, OBTAINING

NECESSARY APPLICABLE PERMITS WITH LOCAL AGENCIES AND OTHER OWNERS

HAVING JURISDICTION AND PREPARING REQUIRED DOCUMENTATION NECESSARY FOR PERMITTING.

12. PROTECT ALL STORM DRAINS, CATCH BASINS, ETC. WITH SAND BAGS, FABRIC, AND OTHER APPROPRIATE BEST MANAGEMENT PRACTICES.

13. THE CONTRACTOR SHALL NOTIFY UNDERGROUND SERVICE ALERT (USA) AT 1-800-422-4133 TWO WORKING DAYS PRIOR TO ANY EXCAVATION WORK.

COMPANY CONTACT TELEPHONE NO.

CITY OF GARDENA JEFF JALOMO (310) 217-9430
P.W. TRAFFIC/ELECTRICAL
CITY OF GARDENA JOHN SCHERER (310) 217-9599
P.W. SEWER
METRO. WATER DISTRICT MARYLIN DUARTE (213) 217-7059
L.A. DEPARTMENT OF JOSE PORRAS (213) 367-1049

WATER & POWER
L.A. SANITATION DISTRICT JON GANZ (562) 908-4288
L.A. COUNTY FLOOD DARYLL CHENOWETH (626) 458-3709

CONTROL DISTRICT
CHEVRON PIPELINE CO. DAVE ZERLER (310) 669-4014
CROWN CASTLE HECTOR AGUILERA (951) 454-5111
SOUTHERN CALIFORNIA CYNTHIA CARRILLLO (310) 413-4497

EDISON COMPANY
SOUTHERN CALIFORNIA SALVADOR GONZALES (310) 970-4844

GAS COMPANY
GOLDEN STATE WATER CO. JOSEPH SALICIDO (310) 660-0320 X101 CONDE VENTURA (310) 701-2500
AT&T/SBC/PACIFIC BELL RAYMOND DOVE (310) 515-4257
TIME WARNER/SPECTRUM ARTURO FERNANDEZ (310) 750-9099

CALIFORNIA UNDERGROUND
SERVICE ALERT (USA) (800) 422-4133
GARDENA WASTE RESOURCES INC (310) 366-7600
APN: 4059-018-900
EXISTING BUILDING SF 14,673 S.F.

EXISTING SITE AREA: 47,180 S.F.

DISTURBED AREA: 29,978 S.F.

PERVIOUS AREA: 29,978 S.F.

IMPERVIOUS AREA: 17,204 S.F.

ZONING: CR
EXISTING CONSTRUCTION TYPE: V-B
EXISTING NUMBER OF STORIES: 2
OVERALL BUILDING HEIGHT: ±28'-7"
OCCUPANCY GROUP: B
FIRE SPRINKLERED: NO
LEGAL DESCRIPTION: FOR DESC SEE ASSESSOR'S MAPS POR OF
SW1/4 T 3S R 14W ( PER OLD APN
04059-018-013 DELETED ON 3.12.23 )
Edward
Lok Ng
C-16840
REN.11/30/25

L ICENSED ARCHITECT

STA T E OF CA L I FORN IA
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
Architecture
Government Services

DEPARTMENT OF PUBLIC WORKS - ENGINEERING

C I T Y O F G A R D E N A
SHT. OF DWG. NO.
# ##

INITAL DATE

DESIGNED BY

DRAWN BY

CHECKED BY
APPROVED BY:

DATE DIRECTOR OF PUBLIC WORKS
B.M.: _
_
NO. DESCRIPTION APPROVED

REVISIONS
DATE
PREPARED BY:

T. M.

DIAL TOLL FREE
811 or 1-800-422-4133

AT LEAST TWO DAYS

BEFORE YOU DIG

UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA
5-2614
2509 ROSECRANS AVE.

GARDENA, CA 90249
1 REVISION 11.15.23
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\3-CD\CHASE BANK - Demolition Set_Pavement to remain_V2.rvt T1

TITLE SHEET
JS 3.25.23
JS
LOK

ROSECRANS COMMUNITY CENTER -

DEMOLITION PHASE

3.25.23 3.25.23

SHEET INDEX
SHEET NO. SHEET DESCRIPTION FILE NO.
1 TITLE SHEET T1
2 TOPOGRAPHIC SURVEY 1
3 DEMOLITION SITE PLAN A1.0
4 DEMOLITION PLAN ADDITIONAL NOTES A1.1
5 EROSION CONTROL PLAN A1.2
6 ROUGH GRADING PLAN A1.3
7 SECTIONS A1.4
8 DETAILS A1.5

PROJECT DIRECTORY

GENERAL NOTES

UTILITY CONTACT NUMBERS
1 8

VICINITY MAP
N.T.S

LOCATION MAP
N.T.S

PROPERTY INFORMATION
(VACATED CHASE BANK BUILDING AT 2509 ROSECRANS AVE.)
1 Edward
Lok Ng
C-16840
REN.11/30/20

L ICENSED ARCHITECT

STA T E OF CA L I FORN IA
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
Architecture
Government Services

DEPARTMENT OF PUBLIC WORKS - ENGINEERING

C I T Y O F G A R D E N A
SHT. OF DWG. NO.
# ##

INITAL DATE

DESIGNED BY

DRAWN BY

CHECKED BY
APPROVED BY:

DATE DIRECTOR OF PUBLIC WORKS
B.M.: _
_
NO. DESCRIPTION APPROVED

REVISIONS
DATE
PREPARED BY:

T. M.

DIAL TOLL FREE
811 or 1-800-422-4133

AT LEAST TWO DAYS

BEFORE YOU DIG

UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA
5-2614
2509 ROSECRANS AVE.

GARDENA, CA 90249
1 REVISION 11.15.23
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\3-CD\CHASE BANK - Demolition Set_Pavement to remain_V2.rvt 1 TOPOGRAPHIC SURVEY
Designer 3.25.23
Author
Checker

ROSECRANS COMMUNITY CENTER -

DEMOLITION PHASE

3.25.23 3.25.23
NTS
SEE AS-BUILT DRAWINGS SECTION 1/A7
2 8
1 1
12/11/23 22
24 EXISTING TO REMAIN. PROTECT IN PLACE.

TO BE DEMOLISHED
6-FOOT TALL CONSTRUCTION FENCE - LOCATION MAY
BE REVISED WITH CITY APPROVAL.

PROPERTY LINE

PURCHE AVE

ROSECRANS AVE

EXISTING

CHASE BANK BUILDING
(BASEMENT AND GRADE LEVELS)
14,673 S.F.

PROTECT

DRIVEWAY APRON

PROTECT

DRIVEWAY
F
F
F
F
F
F
F
(E) ROLLING GATE

PROTECT EXISTING

CONCRETE SIDEWALK

PROTECT EXISTINGCONCRETE SIDEWALK
F
C
C
B
B
B
B
L
L
B
R
N
C
C
P
L
L
P
P P
P
P
P P
P
O O
N
N
N
A TYP.

TYP.

L
D
N
B
B
B
N
B
B B
L
N
D D
L
Q
Q
Q
Q
R
N

PROJECT LIMIT
O
O
C
C
S
A
O
O

PROJECT LIMIT
D
D
T
TYP. T
TYP.

PROTECT

EXISTING ASPHALT PAVEMENT
TO REMAIN. PROTECT IN PLACE

EXISTING CONCRETE GUTTER
TO REMAIN. PROTECT IN PLACE
U
NOTE:

SITE TO BE RECOMPACTED TO A MINIMUM OF 90% COMPACTION
X
EXISTING SEWER CLEAN OUT.

PROTECT IN PLACE

EXISTING INACTIVE / REMOVED
WATER METER. WATER LINES HAVE

BEEN ABANDONED CONTRACTOR TO
VERIFY. UTILITY LINES TO BE

REMOVED AND CAPPED WITHIN

HATCHED AREA

EXISTING SEWER LINE TO

BUILDING HAS BEEN
ABANDONED. CONTRACTOR
TO VERIFY. UTILITY LINES TO

BE REMOVE AND CAPPED
WITHIN HATCHED AREA.

EXISTING INACTIVE / REMOVED
WATER METER. WATER LINES HAVE

BEEN ABANDONED CONTRACTOR TO
VERIFY. UTILITY LINES TO BE

REMOVED AND CAPPED WITHIN

HATCHED AREA

EXISTING GAS LINE TO

BUILDING HAS BEEN
ABANDONED. CONTRACTOR
TO VERIFY. UTILITY LINES TO

BE REMOVE AND CAPPED
WITHIN HATCHED AREA .

EXISTING ELECTRICAL METER HAS BEEN
ABANDONED. CONTRACTOR TO VERIFY. UTILITY

LINES TO BE REMOVED AND CAPPED WITHIN

HATCHED AREA
1 1/2" GAS
1" GAS 1" GAS 1" GAS
1 1/2" GAS 1 1/2" GAS 1 1/2" GAS 1 1/2" GAS
• LOCATION OF EXISTING FACILITIES SHOWN HEREON ARE BASED ON THE

EXISTING TOPOGRAPHIC SURVEY PERFORMED BY BRUCE HALL LAND SURVEY INC., DATED
MARCH, 2022, FIELD OBSERVATION AND A SEARCH OF AVAILABLE RECORDS AND MAY NOT REPRESENT ACTUAL CONDITIONS.
• CONTRACTOR MUST FIELD LOCATE ALL UTILITIES (LOCATION AND

DEPTH)WITHIN WORK AREA AS A FIRST ITEM OF WORK AND VERIFY PROPOSEDDESIGN IS VALID.
• CONTRACTOR SHALL PROTECT IN PLACE THE UTILITY LINES SHOWN AND ANY OTHER LINES NOT OF RECORD OR NOT SHOWN ON THESE PLANS.

CONTRACTOR SHALL BE RESPONSIBLE FOR ANY DAMAGE TO THE
EXISTING UTILITY LINES.
• CONTRACTOR TO VERIFY AND INFORM THE CITY OF ANY FACILITIES

ENCOUNTERED IN THE FIELD WHICH ARE NOT SHOWN ON THIS PLAN, OR WHICH DIFFERS IN LOCATION OR SIZE, PRIOR TO REMOVAL.
• THE CITY MAY IDENTIFY AND REMOVE ANY ITEMS THEY WISH TO RETAIN

PRIOR TO THE CONTRACTOR MOVE IN

EXACT LOCATION OF EXISTING UNDERGROUND STORM DRAIN LINES ON-SITE ARE UNKNOWN. CONTRACTOR SHALL:
• VERIFY LOCATION, SIZE, ELEVATIONS OF EXISTING STORM DRAIN AND VERIFY DESIGN AS A FIRST ITEM OF WORK. NOTIFY ENGINEER
IMMEDIATELY OF ANY REQUIRED CHANGE IN DESIGN.
• CAP EXISTING STORM DRAIN AT DEMOLITION LIMITS - NOTIFY ENGINEER

OF ALL LOCATIONS, SIZES AND INVERT ELEVATIONS AT COMPLETION OF DEMOLITION.
• IF INLET PIPES ARE FOUND CONNECTING TO EXISTING GRATES THAT ARE

REMOVED DURING THE CONSTRUCTION OF THIS PROJECT (OR PIPES

ARE DAMAGED OR REMOVED DURING CONSTRUCTION) THAT RUN

OUTSIDE OF DEMOLITION LIMITS, NOTIFY ENGINEER IMMEDIATELY OF

THE LOCATION AND SIZE TO INSURE CONTINUITY OF DRAINAGE
UPSTREAM.
• ALL UTILITIES SHOULD BE SHUT OFF AND CAPPED PER UTILITY COMPANY REQUIREMENTS.

CONTRACTOR SHALL COORDINATE WITH APPROPRIATE UTILITY
COMPANY PRIOR TO COMMENCEMENT OF WORK.
• WHERE NECESSARY, ALONG THE PERIMETER OF THE SITE AS NEEDED.

CONTRACTOR SHALL PROTECT THESE FENCES AND KEEP AREA FULLY SECURE DURING DEMOLITION. PROJECT FENCE, GATE, PRIVATE

SCREEN, PERIMETER WATER POLLUTION CONTROL SHALL BECOME THE

PROPERTY OF THE CITY AND SHALL REMAIN IN PLACE AT THE
COMPLETION OF DEMOLITION.
• CONTRACTOR TO SCHEDULE A SITE WALK WITH THE CITY PRIOR

TO START OF DEMOLITION TO VERIFY ALL ITEMS TO BE DEMOLISHED • CONTRACTOR TO REFER TO "ASBESTOS CONTAINING MATERIALS AND LEAD-BASED PAINT SURVEY REPORT "CHASE BLDG" BY CES
ENVIORMENTAL CONSULTANT, DATED 8/12/2021

THE DEMO CONTRACTOR SHALL MAINTAIN THE EXCAVATION IN

COMPLIANCE WITH THE STORMWATER REGULATIONS AND PROVIDE

PUMPING AND DESILTING DEVICES WHILE THE UNDER CONTRACT TO THE END OF THE RAINY SEASON, BEING APRIL 15 OR WHILE THEY HAVE CONTROL OF THE SITE.
• EROSION CONTROL SHALL COMPLY WITH THE LOS ANGELES COUNTY

STORMWATER PERMIT FOR BMP'S AND ALL REQUIRED INSTALLED BMPS FOR THE DURATION OF THE CONTRACT. THE CONTRACTOR SHALL

PREPARE A STORM WATER PLAN FOR CITY REVIEW AND APPROVAL

PRIOR TO THE START OF CONSTRUCTION TO ENSURE COMPLIANCE WITH

THE STORMWATER PERMIT
REQUIREMENTS.
• AT THE DEMOLITION LIMITS:

CONTRACTOR SHALL DOCUMENT THE SIZE, LOCATION, AND DEPTH OF

EXISTING SEWER, WATER, AND DRAIN LINES AND CAP FOR FUTURE CONNECTION. CONTRACTOR TO PROVIDE WRITTEN DOCUMENTATION TO

THE CITY AND ENGINEER ONCE UTILITY DEMOLITION WORK IS
COMPLETE.

1. ALL EXISTING ELECTRICAL WITHIN THE DEMOLITION AREA SHALL BE REMOVED AS REQUIRED TO CLEAR THE AREA. THIS
WORK INCLUDES, BUT IS NOT LIMITED TO, THE FOLLOWING:

A. ALL EXISTING WIRE SHALL BE REMOVED FROM CONDUIT.

B. ALL EXISTING CONDUIT, THAT INTERFERES WITH ANY NEW

CONSTRUCTION SHALL BE CUT BACK AS REQUIRED TO
CLEAR NEW CONSTRUCTION.

C. FOR EXISTING CONSTRUCTION THAT IS TO BE REMOVED

REMOVE ALL EXISTING EXPOSED, SURFACE, AND
CONCEALED CONDUIT AND RACEWAYS. RECONNECT

UNDERGROUND OR OVERHEAD EQUIPMENT AND LIGHTING

FIXTURES THAT REMAIN AND WHICH ARE NOW FED THROUGH
THE CONDUIT AND WIRING TO BE REMOVED.

D. DO NOT REUSE SALVAGED MATERIALS AND EQUIPMENT, UNLESS SPECIFICALLY INDICATED ON PLANS OR SPECIFIED.

REMOVE FROM PREMISES AND DISPOSE OF ALL MATERIALS
CONSIDERED BY ARCHITECT TO BE SCRAP.

2. DISPOSAL OF HAZARDOUS MATERIALS SUCH AS LAMPS SHALL BE

DISPOSED OF IN ACCORDANCE WITH ALL STATE AND
FEDERAL REQUIREMENTS.

Edward
Lok Ng
C-16840
REN.11/30/25

L ICENSED ARCHITECT

STA T E OF CA L I FORN IA
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
Architecture
Government Services

DEPARTMENT OF PUBLIC WORKS - ENGINEERING

C I T Y O F G A R D E N A
SHT. OF DWG. NO.
# ##

INITAL DATE

DESIGNED BY

DRAWN BY

CHECKED BY
APPROVED BY:

DATE DIRECTOR OF PUBLIC WORKS
B.M.: _
_
NO. DESCRIPTION APPROVED

REVISIONS
DATE
PREPARED BY:

T. M.

DIAL TOLL FREE
811 or 1-800-422-4133

AT LEAST TWO DAYS

BEFORE YOU DIG

UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA
5-2614
2509 ROSECRANS AVE.

GARDENA, CA 90249
1 REVISION 11.15.23
2 REVISION 01.04.24
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\3-CD\CHASE BANK - Demolition Set_Pavement to remain_V2.rvt A1.0

DEMOLITION SITE PLAN
LOK 3.25.23
JS
LOK

ROSECRANS COMMUNITY CENTER -

DEMOLITION PHASE

3.25.23 3.25.23
N

WALL LEGEND

DEMOLITION KEYNOTES
A REMOVE EXISTING FENCE/GATE, ASSOCIATED POSTS, FOOTINGS, ECT. AND DISPOSE.

B SAW CUT AND REMOVE EXISTING CONCRETE STAIRS OR PAD (COMPLETE) AND DISPOSE.

C REMOVE EXISTING TREE AND ROOT BALL AND DISPOSE- CONFIRM DISPOSITION PRIOR TO DEMO WITH ARCHITECT AND CITY.

D REMOVE EXISTING CONCRETE CURB AND DISPOSE.

F REMOVE EXISTING LANDSCAPE/IRRIGATION AND CAP AT LIMITS OF DEMOLITION AND DISPOSE.

L REMOVE LIGHT POLE, BASE FOOTING, PULL BOX, COUNDUIT AND CONDUCTORS, ECT. (COMPLETE) -RE-ROUTE/CAP.

N REMOVE EXISTING WALL AND FOOTING (COMPLETE) AND DISPOSE.

O REMOVE EXISTING BOLLARDS AND FOOTING (COMPLETE) AND DISPOSE.

P DEMOLISH/REMOVE EXISTING BUILDING/STRUCTURE/FOUNDATION/SUBTERRANEAN PITS AND DISPOSE. SEE SECTION FOR ADDITIONAL INFORMATION.

Q PROTECT IN PLACE UTILITY POLE/TRAFFIC SIGN/UTILITY BOX AS REQUIRED.

R REMOVE EXISTING SIGNAGE AND FOOTING (COMPLETE) AND DISPOSE.

S REMOVE EXISTING BACK FLOW DEVICE AND ITS GATE VALVE, CAP WATER LINE.

T REMOVE EXISTING CONCRETE TIRE STOP AND DISPOSE.

U EXISTING SEWER STRUCTURE TO REMAIN PROTECT IN PLACE.

X SITE TO BE RE-COMPACTED TO A MINIMUM OF 90% COMPACTION. 1 SCALE: 1/16" = 1'-0"

DEMOLITION SITE PLAN

NOTE TO CONTRACTOR

ELECTRICAL DEMOLITION NOTES
3 8
2 1.THE PROJECT IS SUBJECT TO DEMO AND GRADING PERMITS FROM THE CITY COMMUNITY DEVELOPMENT DEPARTMENT AND PERMIT COST(S) WILL BE BORNE BY THE CONTRACTOR.

2.CONTRACTOR SHALL CONDUCT A SURVEY OF EXISTING CONDITIONS AND CORRELATE WITH REQUIREMENTS INDICATED TO DETERMINE AND VERIFY THE EXTENT OF DEMOLITION REQUIRED.

3.CONTRACTOR SHALL RECORD EXISTING CONDITIONS BY USE OF PRE-CONSTRUCTION PHOTOGRAPHS, PRE-CONSTRUCTION VIDEOTAPES, AND DRAWINGS AS APPROPRIATE.

4.A SURVEY SHALL BE PERFORMED AS WORK PROGRESSES TO DETECT HAZARDS RESULTING FROM DEMOLITION ACTIVITIES "BY ________".

5.CONTRACTOR SHALL KEEP INVENTORY AND RECORD THE CONDITION OF ITEMS TO BE REMOVED.

6.LOCATE ALL EXISTING UTILITIES WHETHER SHOWN HEREON OR NOT AS THE FIRST ITEM OF WORK AND PROTECT THEM FROM DAMAGE.

NOTIFY OWNER IMMEDIATELY IF DAMAGE OCCURS AND ASSUME FULL RESPONSIBILITY FOR EXPENSE OF REPAIR OR REPLACEMENT.

NOTIFY OWNER'S REPRESENTATIVE IMMEDIATELY SHOULD FIELD CONDITIONS VARY FROM THOSE SHOWN ON PLAN.

7.WHEN UNANTICIPATED ELECTRICAL, STRUCTURAL, OR OTHER ELEMENTS INCLUDING STORM DRAIN, WATER AND SEWER LINES THAT

CONFLICT WITH INTENDED DESIGN ARE ENCOUNTERED, CONTRACTOR SHALL INVESTIGATE AND MEASURE THE NATURE AND EXTENT OF CONFLICT AND CONTRACTOR SHALL PROMPTLY SUBMIT A WRITTEN REPORT TO THE CITY.

8.CONTRACTOR SHALL LOCATE, IDENTIFY, DISCONNECT, AND SEAL OR CAP OFF INDICATED UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS SERVING AREAS TO BE SELECTIVELY DEMOLISHED AND:
• SHALL ARRANGE TO SHUT OFF INDICATED UTILITIES WITH UTILITY COMPANIES. • IF SERVICES/SYSTEMS ARE REQUIRED TO BE REMOVED, RELOCATED, OR ABANDONED, BEFORE PROCEEDING WITH DEMOLITION

CONTRACTOR SHALL PROVIDE TEMPORARY SERVICES/SYSTEMS THAT BYPASS AREA OF DEMOLITION AND THAT MAINTAIN CONTINUITY OF SERVICES/SYSTEMS TO OTHER PARTS OF BUILDING AND SITE. • SHALL CUT OFF PIPE OR CONDUIT IN WALLS TO BE REMOVED. CAP, VALVE, OR PLUG AND SEAL REMAINING PORTION OF PIPE OR CONDUIT AFTER BYPASSING. WHERE ENTIRE WALL IS TO BE REMOVED, EXISTING SERVICES/SYSTEMS MAY BE REMOVED WITH REMOVAL OF THE WALL. CONTRACTOR SHALL CUT OFF PIPE OR CONDUIT SO IT WILL NOT BE VISIBLE IN FINISHED CONSTRUCTION.

9. CONTRACTOR SHALL PROTECT EXISTING SERVICES/SYSTEMS INDICATED AGAINST DAMAGE DURING DEMOLITION OPERATIONS.

10. INACTIVE OR ABANDONED UTILITIES SHALL BE DISCONNECTED, REMOVED, AND PLUGGED OR CAPPED SUBJECT TO THE LOCAL GOVERNING AGENCIES AT THE PROPERTY LINE.

11. DO NOT WILLFULLY PROCEED WITH CONSTRUCTION WHEN IT IS OBVIOUS THAT KNOWN OBSTRUCTIONS EXIST THAT MAY NOT HAVE BEEN KNOWN DURING DESIGN. SUCH CONDITIONS SHALL BE IMMEDIATELY BROUGHT TO THE ATTENTION OF THE OWNER'S AUTHORIZED REPRESENTATIVE. ASSUME RESPONSIBILITY FOR ALL NECESSARY REVISION DUE TO FAILURE TO GIVE SUCH NOTIFICATION.

12. CONTRACTOR SHALL CONDUCT DEMOLITION AND DEBRIS-REMOVAL OPERATIONS TO ENSURE MINIMUM INTERFERENCE WITH ROADS, STREETS, WALKS, WALKWAYS, AND OTHER ADJACENT OCCUPIED AND USED FACILITIES.

13. CONTRACTOR SHALL PROVIDE TEMPORARY BARRICADES AND OTHER PROTECTION REQUIRED TO PREVENT INJURY TO PEOPLE AND DAMAGE TO ADJACENT BUILDINGS AND FACILITIES TO REMAIN AND:
• SHALL PROVIDE TEMPORARY WEATHER PROTECTION, DURING THE INTERVAL BETWEEN DEMOLITION OF EXISTING CONSTRUCTION

ON EXTERIOR SURFACES AND NEW CONSTRUCTION, TO PREVENT WATER LEAKAGE AND DAMAGE TO STRUCTURE AND INTERIOR AREAS.
• SHALL PROTECT WORK THAT IS TO REMAIN OR THAT IS EXPOSED DURING DEMOLITION OPERATIONS. • SHALL COVER AND PROTECT EQUIPMENT THAT HAS NOT BEEN REMOVED.

14. CONTRACTOR SHALL PROVIDE AND MAINTAIN SHORING, BRACING, AND STRUCTURAL SUPPORTS AS REQUIRED TO PRESERVE

STABILITY AND PREVENT MOVEMENT, SETTLEMENT, OR COLLAPSE OF CONSTRUCTION AND FINISHES THAT REMAIN, AND TO PREVENT UNEXPECTED OR UNCONTROLLED MOVEMENT OR COLLAPSE OF CONSTRUCTION BEING DEMOLISHED. CONTRACTOR SHALL STRENGTHEN OR ADD NEW SUPPORTS WHEN REQUIRED DURING PROGRESS OF DEMOLITION.

15. ALL WORK SHALL CONFORM TO THE REQUIREMENTS OF THE LATEST ADOPTED EDITIONS OF THE UNIFORM BUILDING CODE, THE AMERICANS WITH DISABILITIES ACT, AND ALL OTHER APPLICABLE LOCAL AND STATE CODES, ORDINANCES AND REGULATIONS.

16. CONTRACTOR SHALL USE METHODS REQUIRED TO COMPLETE THE WORK WITHIN THE LIMITATIONS OF GOVERNING REGULATIONS AND AS FOLLOWS:
• SHALL NEATLY CUT OPENINGS AND HOLES PLUMB, SQUARE, AND TRUE TO DIMENSIONS REQUIRED, USING CUTTING METHODS LEAST LIKELY TO DAMAGE CONSTRUCTION TO REMAIN OR ADJOINING CONSTRUCTION. USE HAND TOOLS OR SMALL POWER

TOOLS DESIGNED FOR SAWING OR GRINDING, NOT HAMMERING AND CHOPPING, TO MINIMIZE DISTURBANCE OF ADJACENT SURFACES. TEMPORARILY COVER OPENINGS TO REMAIN.
• SHALL CUT OR DRILL FROM THE EXPOSED OR FINISHED SIDE INTO CONCEALED SURFACES TO AVOID MARRING EXISTING FINISHED SURFACES.
• SHALL NOT USE CUTTING TORCHES UNTIL WORK AREA IS CLEARED OF FLAMMABLE MATERIALS. AT CONCEALED SPACES, SUCH AS

DUCT AND PIPE INTERIORS, VERIFY CONDITION AND CONTENTS OF HIDDEN SPACE BEFORE STARTING FLAME-CUTTING OPERATIONS. MAINTAIN FIRE WATCH AND PORTABLE FIRE-SUPPRESSION DEVICES DURING FLAME-CUTTING OPERATIONS. • SHALL MAINTAIN ADEQUATE VENTILATION WHEN USING CUTTING TORCHES. • SHALL REMOVE DECAYED, TERMITE-INFESTED, VERMIN-INFESTED, OR OTHERWISE DANGEROUS OR UNSUITABLE MATERIALS AND PROMPTLY DISPOSE OF OFF-SITE.
• SHALL LOCATE DEMOLITION EQUIPMENT AND REMOVE DEBRIS AND MATERIALS SO AS NOT TO IMPOSE EXCESSIVE LOADS ON STRUCTURES TO REMAIN.

17. CLEAR THE SITE OF GRASS, WEED GROWTH, RUBBISH, DEBRIS, PAVEMENT, CONCRETE, INACTIVE OR ABANDONED FACILITIES (VERIFIED BY THE AGENCY), THAT ARE TO BE REMOVED FOR CONSTRUCTION OF THE SITE IMPROVEMENTS TO THE LIMITS AND DEPTHS SHOWN ON THE PLANS.

18. ABANDONED UNDERGROUND FACILITIES (VERIFIED BY THE AGENCY), ROOTS THREE INCHES IN DIAMETER AND LARGER, AND ROCKS AND BROKEN MASONRY LARGER THAN 4 INCHES IN ANY DIMENSION SHALL BE REMOVED TO A MINIMUM DEPTH OF 12" BELOW FINISH GRADE.

19. ALL DELETERIOUS MATERIALS WITHIN THE LIMITS OF THE WORK SHALL BE DISPOSED OF OFF-SITE BY THE CONTRACTOR, WHO SHALL MAKE ALL NECESSARY ARRANGEMENTS AND PAY ALL RELATED COSTS.

20. CONTRACTOR SHALL REMOVE DEMOLISHED MATERIALS FROM PROJECT SITE IN A LEGAL MANNER AND LEGALLY DISPOSE OF THEM AT

THE CONTRACTOR'S
EXPENSE IN AN EPA-APPROVED LANDFILL AND:
• SHALL NOT ALLOW DEMOLISHED MATERIALS TO ACCUMULATE ON-SITE. • SHALL REMOVE AND TRANSPORT DEBRIS IN A MANNER THAT WILL PREVENT SPILLAGE ON ADJACENT SURFACES AND AREAS.

21. CONTRACTOR SHALL NOT BURN DEMOLISHED MATERIALS.

22. CONTRACTOR SHALL CLEAN ADJACENT STRUCTURES AND IMPROVEMENTS OF DUST, DIRT, AND DEBRIS CAUSED BY DEMOLITION OPERATIONS AND RETURN ADJACENT AREAS TO CONDITION EXISTING BEFORE DEMOLITION OPERATIONS BEGAN.

23. THE CITY HAS AN EXCLUSIVE AGREEMENT WITH GARDENA WASTE RESOURCES, INC. AND NO OTHER FIRM MAY PROVIDE BULK TRASH BINS IN THE EVENT THE WORK REQUIRES THIS SERVICE. CONTACT INFORMATION ON SHEET T1.

1. ALL GRADING AND CONSTRUCTION SHALL CONFORM TO THE CITY OF GARDENA BUILDING CODE AND THE 2022 CALIFORNIA BUILDING CODE AND UNLESS SPECIFICALLY NOTED ON THESE PLANS. THE PROJECT IS SUBJECT TO GRADING PERMIT FROM THE CITY COMMUNITY DEVELOPMENT DEPARTMENT AND PERMIT COST(S) WILL BE BORNE BY THE CONTRACTOR.

2. ANY MODIFICATIONS OF OR CHANGES TO APPROVED GRADING PLANS MUST BE APPROVED BY THE BUILDING OFFICIAL.

3. NO GRADING SHALL BE STARTED WITHOUT FIRST NOTIFYING THE BUILDING OFFICIAL. A PRE-GRADING MEETING AT THE SITE IS REQUIRED BEFORE THE START OF THE GRADING WITH THE FOLLOWING PEOPLE PRESENT: OWNER, GRADING CONTRACTOR, SOILS ENGINEER, AND WHEN REQUIRED THE ARCHEOLOGIST OR OTHER JURISDICTIONAL AGENCIES. PERMITTEE OR HIS AGENT ARE RESPONSIBLE FOR ARRANGING PRE-GRADE MEETING AND MUST NOTIFY THE BUILDING OFFICIAL AT LEAST TWO BUSINESS DAYS PRIOR TO PROPOSED PRE-GRADE MEETING.

4. 14 DELETED
a. THE CITY CORONER HAS BEEN INFORMED AND HAS DETERMINED THAT NO INVESTIGATION OF THE CAUSE OF DEATH IS REQUIRED, AND b. IF THE REMAINS ARE OF NATIVE AMERICAN ORIGIN, THE DESCENDANTS FROM THE DECEASED NATIVE AMERICANS HAVE MADE A

RECOMMENDATION FOR THE MEANS OF TREATING OR DISPOSING, WITH APPROPRIATE DIGNITY, OF THE HUMAN REMAINS AND ANY ASSOCIATED GRAVE GOODS.

5. THE LOCATION AND PROTECTION OF ALL UTILITIES IS THE RESPONSIBILITY OF THE PERMITTEE.

6. ALL EXPORT OF MATERIAL FROM THE SITE MUST GO TO A PERMITTED SITE APPROVED BY THE BUILDING OFFICIAL OR A LEGAL DUMPSITE.

RECEIPTS FOR ACCEPTANCE OF EXCESS MATERIAL BY A DUMPSITE ARE REQUIRED AND MUST BE PROVIDED TO THE BUILDING OFFICIAL UPON REQUEST.

7. A COPY OF THE GRADING PERMIT AND APPROVED GRADING PLANS MUST BE IN THE POSSESSION OF A RESPONSIBLE PERSON AND AVAILABLE AT THE SITE AT ALL TIMES.

8. SITE BOUNDARIES, EASEMENTS, DRAINAGE DEVICES, RESTRICTED USE AREAS SHALL BE LOCATED PER CONSTRUCTION STAKING BY FIELD ENGINEER OR LICENSED SURVEYOR. PRIOR TO GRADING, AS REQUESTED BY THE BUILDING OFFICIAL, ALL PROPERTY LINES, EASEMENTS, AND RESTRICTED USE AREAS SHALL BE STAKED.

9. 9 DELETED

10. 10 DELETED

11. 11 DELETED

12. WHERE A GRADING PERMIT IS ISSUED AND THE BUILDING OFFICIAL DETERMINES THAT THE GRADING WILL NOT BE COMPLETED PRIOR TO NOVEMBER 1, THE OWNER OF THE SITE ON WHICH THE GRADING IS BEING PERFORMED SHALL, ON OR BEFORE OCTOBER 1, FILE OR CAUSE TO BE FILED WITH THE BUILDING OFFICIAL AN ESCP.

13. TRANSFER OF RESPONSIBILITY: IF THE FIELD ENGINEER, THE SOILS ENGINEER, OR THE ENGINEERING GEOLOGIST OF RECORD IS CHANGED

DURING GRADING, THE WORK SHALL BE STOPPED UNTIL THE REPLACEMENT HAS AGREED IN WRITING TO ACCEPT THEIR RESPONSIBILITY WITHIN THE AREA OF TECHNICAL COMPETENCE FOR APPROVAL UPON COMPLETION OF THE WORK. IT SHALL BE THE DUTY OF THE PERMITTEE TO NOTIFY

THE BUILDING OFFICIAL IN WRITING OF SUCH CHANGE PRIOR TO THE RECOMMENCEMENT OF SUCH GRADING

14. 14 DELETED

15. 15 DELETED

THE CONTRACTOR IS REQUIRED TO TAKE DUE PRECAUTIONARY MEASURES TO PROTECT THE UTILITY LINES SHOWN ON THESE DRAWINGS. THE CONTRACTOR FURTHER ASSUMES ALL LIABILITY AND RESPONSIBILITY FOR THE UTILITY PIPES, CONDUITS OR STRUCTURES SHOWN OR NOT SHOWN ON THESE DRAWINGS.

THE CONTRACTOR AGREES THAT HE SHALL ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE CONDITIONS

DURING THE COURSE OF CONSTRUCTION OF THIS PROJECT, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY THAT THIS REQUIREMENT SHALL APPLY CONTINUOUS AND NOT BE LIMITED TO NORMAL WORKING HOURS; AND THAT THE

CONTRACTOR SHALL DEFEND, INDEMNIFY AND HOLD THE OWNER AND ENGINEER HARMLESS FROM ANY AND ALL LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE OWNER OR ENGINEER.

A.CITY REQUIRES ALL NEW BUILDINGS, AND DEMOLITION / RENOVATION/TENANT IMPROVEMENT PERMIT APPLICANT WITH PROJECT VALUATION OF $100,000.00 OR MORE TO PREPARE A CONSTRUCTION & DEMOLITION RECYCLING PLAN (CDRP). FILL OUT “FORM CDRP” AND SUBMIT TO CITY OF GARDENA BUIDLING AND SAFETY DEPARTMENT FOR APPROVAL. CALL (310)217-9527 FOR FURTHER INFORMATION & ASSISTANCE. THIS PROJECT IS

SUBJECT TO CDRP
B. VALUATION OF PROJECT IS GREATER THAN $200,000. IN ACCORDANCE WITH CA GREEN BUILDING STANDARDS CODE SECTION 301.3 CALGREEN NONRESIDENTIAL MANDATORY MEASURES APPLY TO BUILDING ALTERATIONS. CODE SECTION RELEVANT TO ADDITIONAL AND ALTERATIONS SHALL APPLY TO PORTIONS OF THE BUILDING BEIN ADDED OR ALTERED WITHIN THE SCOPE OF THE PERMITTED WORK. PLEASE INDICATE ON PLANS HOW SITE DEVELOPMENT COMPLIES WITH CGBC NON-RESIDENTIAL MANDATORY MEASURE SECTION 5.106 FOR STORM WATER POLLUTION PREVENTION BEST MANAGEMENT PRACTICES FOR EROSION AND SEDIMENT CONTROL AND GRADING AND PAVING. THIS PROJECT IS SUBJECT TO CAL GREEN REQUIREMENTS.

SECTION 5.408.1 CONSTRUCTION WASTE MANAGEMENT. RECYCLE AND/OR SALVAGE FOR REUSE A MINIMUM OF 65 PERCENT OF THE NONHAZARDOUS CONSTRUCTION AND DEMOLITION WASTE IN ACCORDANCE WITH SECTION 5.408.1.1.

EXCEPTIONS:

1. EXCAVATED SOIL AND LAND-CLEARING DEBRIS.

2. THE ENFORCING AGENCY MAY IDENTIFY ALTERNATE WASTE REDUCTION REQUIREMENTS IF

THE AGENCY DETERMINES THAT AN OWNER OR CONTRACTOR HAS ADEQUATELY DEMONSTRATED THAT DIVERSION FACILITIES NECESSARY FOR THE OWNER TO COMPLY WITH THIS SECTION DO NOT EXIST OR ARE NOT LOCATED WITHIN A REASONABLE DISTANCE FROM THE JOBSITE.

SECTION 5.408.1.1 OF CALGREEN IS AMENDED TO READ:

SECTION 5.408.1.1 CONSTRUCTION WASTE MANAGEMENT PLAN. SUBMIT A CONSTRUCTION WASTE MANAGEMENT PLAN FOR THE PROJECT, SIGNED BY THE OWNER, IN CONFORMANCE WITH ITEMS 1 THROUGH 5 PRIOR TO ISSUANCE OF BUILDING PERMIT. THE CONSTRUCTION WASTE MANAGEMENT PLAN

SHALL BE UPDATED AS NECESSARY UPON APPROVAL BY THE ENFORCING AGENCY AND SHALL BE AVAILABLE DURING CONSTRUCTION FOR EXAMINATION BY THE ENFORCING AGENCY. THE PLAN MUST DO ALL OF THE FOLLOWING:

1. IDENTIFY THE CONSTRUCTION AND DEMOLITION WASTE MATERIALS TO BE DIVERTED FROM DISPOSAL BY RECYCLING, REUSE ON THE PROJECT, OR SALVAGE FOR FUTURE USE OR SALE.

2. SPECIFY IF CONSTRUCTION AND DEMOLITION WASTE MATERIALS WILL BE SORTED ON-SITE (SOURCE-SEPARATED) OR BULK MIXED (SINGLE STREAM).

3. IDENTIFY DIVERSION AND DISPOSAL FACILITIES WHERE THE CONSTRUCTION AND DEMOLITION WASTE MATERIAL WILL BE TAKEN AND IDENTIFY THE

WASTE MANAGEMENT COMPANIES, IF ANY, THAT WILL BE UTILIZED TO HAUL THE CONSTRUCTION AND DEMOLITION WASTE MATERIAL. A WASTE MANAGEMENT COMPANY UTILIZED TO HAUL CONSTRUCTION AND DEMOLITION WASTE MATERIAL MUST HAVE ALL APPLICABLE COUNTY APPROVALS.

4. IDENTIFY CONSTRUCTION METHODS EMPLOYED TO REDUCE THE AMOUNT OF CONSTRUCTION AND DEMOLITION WASTE GENERATED.

PAGE 6 OF 7

5. SPECIFY THAT THE AMOUNT OF CONSTRUCTION AND DEMOLITION DEBRIS SHALL BE CALCULATED CONSISTENT WITH THE ENFORCING AGENCY’S REQUIREMENTS FOR THE WEIGHING OF DEBRIS. THE OWNER SHALL ENSURE THAT ALL CONSTRUCTION AND DEMOLITION

DEBRIS DIVERTED OR DISPOSED ARE MEASURED AND RECORDED BY WEIGHT OR VOLUME USING THE MOST ACCURATE METHOD OF MEASUREMENT AVAILABLE. TO THE EXTENT PRACTICABLE, ALL CONSTRUCTION AND DEMOLITION DEBRIS SHALL BE WEIGHED USING SCALES. SCALES SHALL BE IN COMPLIANCE WITH ALL REGULATORY REQUIREMENTS FOR ACCURACY AND MAINTENANCE. FOR CONSTRUCTION AND DEMOLITION DEBRIS FOR WHICH

WEIGHING IS NOT POSSIBLE DUE TO LACK OF SCALES OR NOT PRACTICAL DUE TO MATERIAL BEING REUSED ON-SITE OR ELSEWHERE OR OTHER CONSIDERATIONS, A VOLUMETRIC MEASUREMENT SHALL BE USED. THE OWNER SHALL CONVERT VOLUMETRIC MEASUREMENTS

TO WEIGHT USING THE STANDARDIZED CONVERSION FACTORS APPROVED BY THE ENFORCING AGENCY FOR THIS PURPOSE

1. CONSTRUCTION SITE BEST MANAGEMENT PRACTICES (BMPS) FOR THE MANAGEMENT OF STORM WATER AND NON-STORMWATER DISCHARGES SHALL BE DOCUMENTED ON THE GRADING PLAN. ARRANGEMENTS SHALL BE MADE BY THE DEVELOPER TO RETAIN THE

SWPPP AND/OR THE EROSION/SEDIMENT CONTROL
PLAN ON THE JOBSITE THROUGHOUT THE TIME OF CONSTRUCTION. THE IMPLEMENTATION AND MAINTENANCE OF SITE BMPS IS REQUIRED TO MINIMIZE JOBSITE EROSION AND SEDIMENTATION.

ARRANGEMENTS SHALL BE MADE BY THE DEVELOPER TO MAINTAIN THOSE BMPS THROUGHOUT THE TIME OF CONSTRUCTION.

2. EROSION CONTROL BMPS SHALL BE IMPLEMENTED AND MAINTAINED TO MINIMIZE THE ENTRAINMENT OF SOIL IN RUNOFF FROM DISTURBED SOIL AREAS ON CONSTRUCTION SITES.

3. SEDIMENT CONTROL BMPS SHALL BE IMPLEMENTED AND MAINTAINED TO MINIMIZE THE TRANSPORT OF SOIL FROM THE CONSTRUCTION SITE.

4. GRADING SHALL BE PHASED TO LIMIT THE AMOUNT OF DISTURBED AREAS EXPOSED TO THE EXTENT FEASIBLE.

5. AREAS THAT ARE CLEARED AND GRADED SHALL BE LIMITED TO ONLY THE PORTION OF THE SITE THAT IS NECESSARY FOR CONSTRUCTION. THE CONSTRUCTION SITE SHALL BE MANAGED TO MINIMIZE THE

EXPOSURE TIME OF DISTURBED SOIL AREAS THROUGH PHASING AND SCHEDULING OF GRADING AND THE USE OF TEMPORARY AND PERMANENT SOIL STABILIZATION.

6. ONCE DISTURBED, SLOPES (TEMPORARY OR PERMANENT) SHALL BE STABILIZED IF THEY WILL NOT BE WORKED WITHIN 14 DAYS. ALL SLOPES SHALL BE STABILIZED PRIOR TO A PREDICTED STORM EVENT. CONSTRUCTION SITES SHALL BE REVEGETATED AS EARLY AS FEASIBLE AFTER SOIL DISTURBANCE.

7. STOCKPILES OF SOIL SHALL BE PROPERLY CONTAINED TO ELIMINATE OR REDUCE SEDIMENT TRANSPORT FROM THE SITE TO STREETS, DRAINAGE FACILITIES OR ADJACENT PROPERTIES VIA RUNOFF, VEHICLE TRACKING, OR WIND.

8. CONSTRUCTION SITES SHALL BE MAINTAINED IN SUCH A CONDITION THAT A STORM DOES NOT CARRY WASTES OR POLLUTANTS OFF THE SITE. DISCHARGES OTHER THAN STORMWATER (NON-STORMWATER

DISCHARGES) ARE PROHIBITED, EXCEPT AS AUTHORIZED BY AN INDIVIDUAL NPDES PERMIT, THE STATEWIDE GENERAL PERMIT-CONSTRUCTION ACTIVITY. POTENTIAL POLLUTANTS INCLUDE BUT ARE NOT LIMITED TO: SOLID OR LIQUID CHEMICAL SPILLS; WASTES FROM PAINTS, STAINS, SEALANTS, SOLVENTS, DETERGENTS, GLUES, LIME, PESTICIDES, HERBICIDES, FERTILIZERS, WOOD PRESERVATIVES, AND ASBESTOS FIBERS, PAINT FLAKES OR STUCCO FRAGMENTS; FUELS, OILS LUBRICANTS, AND HYDRAULIC, RADIATOR OR BATTERY FLUIDS; CONCRETE AND RELATED CUTTING OR CURING RESIDUES; FLOATABLE WASTES; WASTES FROM ENGINE/EQUIPMENT STEAM CLEANING OR CHEMICAL DEGREASING; WASTES FROM STREET CLEANING; AND SUPER-CHLORINATED POTABLE WATER FROM LINE FLUSHING AND TESTING. DURING CONSTRUCTION, DISPOSAL OF SUCH MATERIALS SHOULD OCCUR IN A SPECIFIED AND CONTROLLED TEMPORARY

AREA ON-SITE PHYSICALLY SEPARATED FROM POTENTIAL STORMWATER RUNOFF, WITH ULTIMATE DISPOSAL IN ACCORDANCE WITH LOCAL, STATE AND FEDERAL REQUIREMENTS.

9. RUNOFF FROM EQUIPMENT AND VEHICLE WASHING SHALL BE CONTAINED AT THE CONSTRUCTION SITE AND MUST NOT BE DISCHARGED TO RECEIVING WATERS OR THE LOCAL STORM DRAIN SYSTEM.

10. APPROPRIATE BMPS FOR CONSTRUCTION-RELATED MATERIALS, WASTES, SPILLS OR RESIDUES SHALL BE IMPLEMENTED TO ELIMINATE OR REDUCE TRANSPORT FROM THE SITE TO STREETS, DRAINAGE FACILITIES, OR ADJOINING PROPERTIES BY WIND OR RUNOFF.

11. ALL CONSTRUCTION CONTRACTORS AND SUBCONTRACTOR PERSONNEL ARE TO BE MADE AWARE OF THE REQUIRED BMP’S AND GOOD HOUSEKEEPING MEASURES FOR THE PROJECT SITE AND ANY ASSOCIATED CONSTRUCTION STAGING AREAS.

12. DISCHARGING CONTAMINATED GROUNDWATER PRODUCED BY DEWATERING GROUNDWATER THAT HAS INFILTRATED INTO THE CONSTRUCTION SITE IS PROHIBITED. DISCHARGING OF CONTAMINATED SOILS VIA SURFACE EROSION IS ALSO PROHIBITED. DISCHARGING NON-CONTAMINATED GROUNDWATER PRODUCED BY DEWATERING ACTIVITIES MAY REQUIRE A NATIONAL DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT FROM THE REGIONAL WATER QUALITY CONTROL BOARD.

13. BMP’S SHALL BE MAINTAINED AT ALL TIMES. IN ADDITION, BMP’S SHALL BE INSPECTED PRIOR TO PREDICTED STORM EVENTS AND FOLLOWING STORM EVENTS.

14. AT THE END OF EACH DAY OF CONSTRUCTION ACTIVITY, ALL CONSTRUCTION DEBRIS AND WASTE MATERIALS SHALL BE COLLECTED AND PROPERLY DISPOSED OF

IN TRASH OR RECYCLE BINS
DEMOLITION GENERAL NOTES GENERAL NOTES.

CONTRACTOR'S RESPONSIBILITY
Edward
Lok Ng
C-16840
REN.11/30/20

L ICENSED ARCHITECT

STA T E OF CA L I FORN IA
1511 Cota Ave. Long Beach, CA 90813 Tel. 562-912-7900
Architecture
Government Services

DEPARTMENT OF PUBLIC WORKS - ENGINEERING

C I T Y O F G A R D E N A
SHT. OF DWG. NO.
# ##

INITAL DATE

DESIGNED BY

DRAWN BY

CHECKED BY
APPROVED BY:

DATE DIRECTOR OF PUBLIC WORKS
B.M.: _
_
NO. DESCRIPTION APPROVED

REVISIONS
DATE
PREPARED BY:

T. M.

DIAL TOLL FREE
811 or 1-800-422-4133

AT LEAST TWO DAYS

BEFORE YOU DIG

UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA
5-2614
2509 ROSECRANS AVE.

GARDENA, CA 90249
1 REVISION 11.15.23
G:\Project Files\2960 Gardena, Chase Bank Bldg 2501 Rosecrans\01-Drawings\01-Revit\3-CD\CHASE BANK - Demolition Set_Pavement to remain_V2.rvt A1.1

DEMOLITION PLAN ADDITIONAL NOTES
JS 3.25.23
JS
LOK

ROSECRANS COMMUNITY CENTER -

DEMOLITION PHASE

3.25.23 3.25.23
4 8
NOTES:

CITY REQUIRES ALL NEW BUILDINGS, AND DEMOLITION / RENOVATION/TENANT IMPROVEMENT PERMIT APPLICANT WITH PROJECT VALUATION OF $100,000.00 OR MORE TO PREPARE A CONSTRUCTION & DEMOLITION RECYCLING PLAN (CDRP). FILL OUT “FORM CDRP” AND SUBMIT TO CITY OF GARDENA BUILDING AND SAFETY DEPARTMENT FOR APPROVAL. CALL (310) 217-9527 FOR FURTHER INFORMATION AND ASSISTANCE. THIS PROJECT IS SUBJECT TO CDRP

CALGREEN

NPDES NOTES
1 1
1 1
1 12/11/23 22
24 PURCHE AVE

ROSECRANS AVE
(49.07) DWY
(48.73) DWY
(49.08) BW (49.95) BW (48.89) BW (48.89) BW
(48.14) TC(48.05) FL
(48.22) TC(48.13) FL(48.27) LIP
(48.17) TC(48.09) FL
(48.73) TC(48.09) FL(48.26) LIP
(48.71) TC(48.04) FL(48.21) LIP
(48.68) TC(47.98) FL(48.11) LIP
(48.66) TC(47.99) FL(48.10) LIP(48.59) TC(47.96) FL(48.13) LIP(48.57) TC(47.94) FL(48.11) LIP (48.66) DWY
(48.71) TC(48.30) FL(48.79) LIP
(48.12) TC
(48.10) FL
(48.06) LIP
(48.13) TC
(48.13) FL
(48.01) LIP
(48.88) TC
(48.23) FL
(48.02) LIP
(49.35) TC
(48.68) FL
(48.81) LIP
(48.81) FS
(48.88) TC
(48.23) FL
(48.41) LIP
(49.09) TC
(48.45) FL
(48.59) LIP
(49.35) TC
(48.68) FL
(48.81) LIP
(49.50) TC
(48.85) FL
(48.01) LIP
(49.98) FL
(49.14) LIP
(49.98) FL
(49.14) LIP
(49.98) FL
(49.14) LIP
(49.68) TC
(49.27) FL
(49.68) TC
(49.27) FL
(49.66) TC
(48.97) FL
(49.2) LIP
(49.69) TC
(48.18) FL
(49.87) TC
(48.84) FL
(49.84) LIP
(48.75) BW (48.75) BW
(48.96) BW
(48.98) BW
(48.00) BW
(48.89) BW
(49.03) BW
(49.35) BW
(49.87) BW
(48.99) BW (49.04) BW
(56.73) TW
(56.06) TW
(56.53) TW
(56.42) TW
(51.24) TC
(51.22) FL
(51.33) FS (51.21) FS (51.28) FS (50.22) FS (49.97) BW
(50.72) FS
(51.27) TC
(51.12) FL
(51.21) TC
(51.03) FL
(51.21) BW
(50.99) FL
(51.18) BW
(50.94) FL
(51.19) BW
(51.24) BW
(51.11) FL
(51.15) BW
(51.09) BW (51.27) BW (51.11) BW (50.08) BW
(51.34) BW (51.47) BW
(50.33) BW
-
---
1&2
C.L. FENCE ANDCONSTRUCTIONNETTING

LIMIT OF ROUGHGRADING
C.L. FENCE ANDCONSTRUCTIONNETTING

NO WORK

EXISTING PAVEMENT

LIMIT OF ROUGH

GRADING
C.L. FENCE AND

CONSTRUCTION