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.