Hazardous Materials Assessment

Executive Summary

At the request of BOLA Architecture and Planning (BOLA), a limited asbestos and lead survey was performed of the Snohomish Carnegie Library located at 105 Cedar Street in Snohomish, Washington. The purpose of the survey was to determine the asbestos and/or lead content of suspect asbestos or lead-containing materials that may be impacted by the separation of the original Carnegie Library from a newer Addition section of the building. An ATC Technician conducted this survey on October 6, 2004.

 

The report below is a summary of the findings. Before undertaking design, review the entire report, including Bulk Sampling Lab Results, located in the Appendix of this report.

 

The materials sampled for asbestos as part of this survey are included in the following list.

  • Ceiling tiles (2’x3’, 1’x1’ and 2’x4’)
  • Plaster Composite
  • Tan Sealant on Skylight
  • Gray, Blown-in Insulation
  • Gray HVAC Ducting Putty
  • Gray Roofing Felt
  • Black Sink Undercoatings
  • Laminate Glue (Countertops)
  • Wallboard Composite
  • Brown Cork Board and Butterscotch Mastic
  • Carpet Mastics (Butterscotch, Tan and Brown)
  • Paper Flooring
  • White Leveling Compound
  • Slipsheeting
  • Brown Tile Sheet Flooring
  • Window Putty (Brittle and Soft)
  • Addition Roofing Materials
  • Exterior Stucco
  • Pressed Board Siding
  • Cove Base Mastics (White and Brown)
  • White Mastic Behind Vinyl Wall Sheeting
  • Gray Ceramic Tile Grout
  • 12”x12” Beige Vinyl Floor Tile and Black Mastic
  • Brown Pebble Patterns Vinyl Sheeting on Countertop
  • Gray Felt Inside of Fuse Box
  • Exterior/Interior Brick Mortar
  • Flush Mount Can Lighting Paper

The materials sampled for lead as part of this survey are included in the following list.

  • Red Paint on Wood Stairs and Floor
  • Beige Paint on Plaster Walls
  • Brown Paint on Wood Roof Supports
  • Beige and Brown Paint on Wood Roof Supports
  • Gray and Beige Paint on Exterior Stone Work
  • Brick and Mortar on Exterior of Addition

Limited Asbestos and Lead Survey Report

 

Sampling and Analysis

There were 41 suspect asbestos-containing materials and 6 suspect lead-containing materials collected during this limited survey throughout the original Carnegie Library and in the areas where the separation is planned to occur. All of the suspect building materials listed above were sampled and analyzed for asbestos or lead content. Twelve of the forty-one samples collected for analysis were found to contain regulated levels of asbestos or were found to contain <1% (trace amounts) of asbestos. Five of the different types of suspect lead-containing materials tested positive for lead.

 

Some materials have been assumed to contain ACM or were located in areas that were not accessible and could not be sampled for ACM. Below is a table describing the assumed asbestos-containing materials found throughout the project area.

 

Table 1

Assumed ACM List

Location Material Description Asbestos Content
Throughout the project area Electrical Wiring Assumed
Throughout the project area Pipe Fittings and Straight Runs Assumed
Restrooms of the 1968 Addition Mirror Mastic Assumed
Exterior of 1968 Addition below windows Cement Asbestos Board Assumed
Dumb Waiter or Elevator Brakes Assumed



Findings

Table 2

Analytical Results

The laboratory analytical results for this survey are listed below. Materials in bold are considered positive for asbestos content or were found to contain trace amounts of asbestos.

Sample # Location Material Description Asbestos Content Material Quantity
105-001 Mezzanine and Upper Floor ceilings of library 2’X3’ painted white ceiling tiles ND NA
105-002, 018, 039 Throughout the library Plaster Composite ND NA
105-003 Mezzanine of library Tan Skylight Sealant ND NA
105-004 Attic space of library Gray, blown-in insulation ND NA
105-005 Throughout the project area Gray HVAC ducting putty ND NA
105-006, 036 Library roof and fuse boxes of library Gray felt 90% Chrysotile 3,170 SF
105-007, 035 Upper Floor and Basement Kitchens of library and Office space of 1968 Addition Black Sink Undercoating 5% Chrysotile 4 EA in Kitchens

1 EA in 1968 Addition
105-008 Upper Floor Kitchen Laminate Countertop Glue ND NA
105-009, 037, 038 Throughout the project area Wallboard Composite <1% Chrysotile 20000 SF
105-010 Upper Floor Reading Area Brown Cork Board ND NA
105-011 Upper Floor Reading Area Butterscotch Mastic associated with Brown Cork Board 5% Chrysotile 100 SF
105-012 Upper Floor Reading Area Tan Carpet Mastic (Under Green Carpet) ND NA
105-013 Upper Floor Periodicals Area Butterscotch Carpet Mastic (Under Brown Carpet) ND NA
105-014 Upper Floor Periodicals Area Paper Flooring under Brown Carpet ND NA
105-015 Upper Floor Kitchen Area White Leveling Compound 2% Chrysotile 1000 SF
105-016 Upper Floor Reading Area Slipsheeting Under Brown Tile Sheet Flooring ND NA
105-017 Upper Floor Reading Area Brown Tile Sheet Flooring (Under Green Carpet) ND NA
105-017 Upper Floor Reading Area Brown Tile Sheet Flooring (Under Green Carpet) ND NA
105-019 Exterior of library Brittle Window Putty ND NA
105-020 Exterior of library Soft, White Window Putty ND NA
105-021 1968 Addition Roof Roofing Cut Including Slipsheeting 5% Chrysotile 5,352 SF
105-022 Exterior of library Stucco ND NA
105-023 Exterior of library Pressed Board Siding ND NA
105-024 Stairs to Grade Level Butterscotch Carpet Mastic ND NA
105-025 1968 Addition Restrooms, Janitor Closet and Hallway 1’X1’ Ceiling Tiles and Brown Glue Dot ND NA
105-026 1968 Addition Restrooms White Cove Base Mastic ND NA
105-027 1968 Addition Restrooms White Mastic Behind Vinyl Wall Sheeting ND NA
105-028 1968 Addition Restrooms Gray Ceramic Tile Grout ND NA
105-029 Entry Way Between Gallery and Hallway to Basement of Library Brown Carpet Mastic and Black Mastic (Under Carpet) <1% Chrysotile 510 SF
105-030, 013 Throughout the project area Brown Cove Base Mastic ND NA
105-032 Basement floor Kitchen and Office area of 1968 Addition 12”X12” Beige Vinyl Tiles and Black Mastic Tile – 2% Chrysotile Mastic – 5% Chrysotile Tile – 360 SF Mastic – 360 SF
105-033 Basement floor Kitchen area Brown Pebble Pattern Vinyl Sheet Countertop and Tan Mastic 30% Chrysotile 50 SF
105-034 Basement floor Kitchen and Office areas 2’X4’ Fissure and Pinhole Ceiling Tiles <1% Chrysotile and Amosite 360 SF
105-040 1968 Addition Exterior and Interior Red Brick Mortar ND NA
105-041 Basement floor Kitchen, Hallway to library Basement, 1968 Addition Hallway and 1968 Addition Restrooms Flush and Can lighting Paper 65% Chrysotile 1 EA – Basement Kitchen 20 EA – Hallway to library Basement 6 EA – 1968 Addition Hallway 3 EA – 1968 Addition Restrooms

ND – None Detect for Asbestos Fibers
SF – Square Feet, EA - Each

 

Table 3

Analytical Results

Materials in bold are considered positive for lead content. The laboratory analytical results for this survey are:

Sample # Location Paint/Bulk Description Substrate Lead Content *
105L-01 Mezzanine of library Red Paint Wood Floor 4088
105L-02 Upper Floor Reading Room Beige Paint Plaster Wall 17700
105L-03 Roof of Library Brown Paint Wood Supports 42680
105L-04 Roof of Library Beige and Brown Paint Wood Supports 12230
105L-05 Roof of Library Gray and Beige Paint Cast Concrete 18000
105L-06 1968 Addition Exterior Brick and Mortar Bulk Brick and Mortar <120

* PPM – Parts Per Million

 

Recommendations

Asbestos containing materials (ACM) and lead containing materials are hazardous substances. Federal, state, and local agencies regulate the condition, handling and waste disposal of both lead and ACM. Both lead and asbestos generally do not pose a health threat unless the asbestos fibers or lead paint are disturbed, become airborne and are inhaled or ingested. Contractors working in the facility must be informed of the type and location of ACM and lead products. ATC recommends that abatement of ACM, including nonfriable ACM, be performed by a licensed, certified and registered asbestos contractor with trained workers in accordance with federal, state and local regulations prior to any renovation, demolition or other activities that may disturb the ACMs. We also recommend that if lead paint is to be removed or disturbed, that the renovation or demolition is handled by a certified contractor.

 

The State of Washington Labor and Industries (L&I) require employers to implement specific work practices, which protect workers from airborne lead and asbestos exposure. Building materials, which contain even low levels of lead or asbestos (trace amounts), can potentially generate significant concentrations of airborne asbestos fibers or lead dust when disturbed. Therefore, control measures should be instituted which adequately addresses worker health and safety during planned renovation or demolition activities involving these materials.

 

Limitations of Bulk Sampling Asbestos and Lead-Containing Materials

Reasonable effort is made by ATC personnel to locate and sample suspect materials. However, for any facility the existence of unique or concealed lead or asbestos-containing materials and debris is a possibility. In addition, sampling and laboratory analysis constraints typically hinder the investigation. ATC does not warrant, guarantee or profess to have the ability to locate or identify all lead or asbestos-containing materials in a facility. The intent of this report is to be used in planning for renovation or demolition.

 

Questions about this information should be made to Terry McDunner at ATC Associates, Seattle, Washington at (206) 781-1449, or at 6347 Seaview Avenue Northwest, Seattle, WA 98107.

 

The following pages contain plan diagrams with sample locations identified in this report.

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