N rain gutter 1,600 μg/ft²
NW rain gutter 1,200 μg/ft²
NW rain gutter 1,100 μg/ft²
NW rain gutter 2,600 μg/ft²
NW rain gutter 600 μg/ft²
NW rain gutter 620 μg/ft²
NW rain gutter 1,100 μg/ft²
S rain gutter 1,800 μg/ft²
SE rain gutter 1,100 μg/ft²
SE rain gutter 4,200 μg/ft²
SE rain gutter 2,000 μg/ft²
SE rain gutter 980 μg/ft²
SE rain gutter 700 μg/ft²
Tustin Hangar Fire Testing Summary

 

Levels of Concern per listed agency
Substance Source Location Level of Concern Agency
Asbestos Air Schools 70 s/mm² EPA AHERA (40 CFR 763 Appx. A, Subpart E)
Asbestos Air Any 0.01 f/cc EPA/OSHA
Asbestos Dust Any 5,000 s/cm² EPA
Asbestos Materials Any >1% EPA / OSHA
Asbestos Soil Exterior 0.25% CARB
Asbestos Water Any 7M f/L >10μm EPA / California State Water Boards
Lead Air Any 0.150 μg/m³ AHERA (40 CFR 50.16)
Lead Dust Interior window trough 400 μg/ft² EPA (40 CFR 745)
Lead Dust Interior window sill 100 μg/ft² EPA  (40 CFR 745)
Lead Dust Interior floor 10 μg/ft² EPA (40 CFR 745)
Lead Dust Exterior Horizontal surface 400 μg/ft² EPA (40 CFR 745)
Lead Soil Exterior Yard 1,200 ppm (1,200 mg/kg)  EPA
Lead Soil Exterior Play Area 400 ppm (400 mg/kg) EPA
Lead Soil Exterior 80 ppm (80 mg/kg) DTSC
Particulate Matter Air Any 154 μg/m³ EPA AHERA (40 CFR 58)

 

Summary of Available Test Data
Type of Test Location Number
of Tests		 Level of
Concern		 Details
Asbestos in air Exterior 27 0
Asbestos in air Interior 22 0
Asbestos in dust Exterior 213 0
Asbestos in dust Interior 866 0
Asbestos in soil Exterior 6 0
Asbestos in solid debris Exterior 34 17 One finding of 5% Amosite
Seventeen findings between 12% - 55% Chrysotile
Asbestos in water Exterior 6 0
Lead in air Exterior 1 0
Lead in dust Exterior 302 13 Thirteen findings between 600-4,200 μg/ft² in gutters
Gutters are a known source of environmental lead per the EPA
Lead in dust Interior 553 12 Ten findings of 11, 12, 13, 16, 19, 20, 23, 37, 55, & 240 μg/ft² in garages
Two findings of 14 , & 170 μg/ft² in living areas
Lead in soil Exterior 63 0
Lead in solid debris Exterior 6 0
Lead in water Exterior 2 0

 

Summary of Available Tests Conducted in Impacted Area
Test Date Requested By Testing Agency Location
Type		 Location
Description		 Tested For Tests Level  of
Concern		 Details Report Available From
11/7/2023 South Coast Air Quality Management District AQMD Exterior CS, OCSRTA, Great Foundations Volatile Organic Compounds 3 0 City of Tustin
11/7/2023 South Coast Air Quality Management District AQMD Exterior Veterans Park Asbestos in solid debris 4 3 17%-27% Chrysotile in 3 samples City of Tustin
11/8/2023 Homeowner El871 Unknown Exterior CS -Private Residence Asbestos in solid debris 2 1 5% Amosite, 55% Chrysotile in 1 sample El871
11/8/2023 South Coast Air Quality Management District Eurofins EPK Built Environment Testing Exterior Almalfi, LMA, OCSRTA, Veterans Park Asbestos in air 6 0 City of Tustin
11/8/2023 South Coast Air Quality Management District AQMD Exterior OC Sheriffs Regional Training Academy,
Columbus Square, Veterans Park		 Asbestos in solid debris 4 2 Consistent with heat damaged chrysotile,
but identity cannot be confirmed		 City of Tustin
11/9/2023 Orange County Health Care Agency OCHCA Exterior Heritage Elementary / LMA Lead in dust 7 0 City of Tustin
11/9/2023 Orange County Health Care Agency OCHCA Exterior Heritage Elementary / LMA Lead in soil 5 0 City of Tustin
11/9/2023 South Coast Air Quality Management District AQMD Exterior Heritage Elementary Lead / metals in air 1 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior Montgomery Park Lead in dust 3 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior Montgomery Park Lead in soil 1 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior OC Rescue Mission Lead in dust 2 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior OC Rescue Mission Lead in soil 1 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior OC Sheriffs Regional Training Academy Lead in dust 4 0 City of Tustin
11/10/2023 Orange County Health Care Agency OCHCA Exterior OC Sheriffs Regional Training Academy Lead in soil 2 0 City of Tustin
11/11/2023 South Coast Air Quality Management District Eurofins EPK Built Environment Testing Exterior Almalfi, LMA, OCSRTA, Veterans Park Asbestos in air 4 0 City of Tustin
11/12/2023 South Coast Air Quality Management District Eurofins EPK Built Environment Testing Exterior Almalfi, LMA, OCSRTA, Veterans Park Asbestos in air 4 0 City of Tustin
11/12/2023 South Coast Air Quality Management District Eurofins EPK Built Environment Testing Exterior Almalfi, LMA, OCSRTA, Veterans Park Asbestos in air 4 0 City of Tustin
11/15/2023 Homeowner Ieb7c Unknown Interior CS -Private Residence Asbestos in dust 16 0 Ieb7c
11/20/2023 Homeowner Rl489 JLM Environmental Interior CS -Private Residence Asbestos in dust 4 0 Rl489
11/22/2023 Tustin Unified School District National Econ Corporation Interior Heritage Elementary Asbestos in air 8 0 City of Tustin
11/22/2023 Tustin Unified School District National Econ Corporation Interior Heritage Elementary Asbestos in dust 9 0 City of Tustin
11/22/2023 Tustin Unified School District National Econ Corporation Interior Legacy Magnet Academy Asbestos in air 8 0 City of Tustin
11/22/2023 Tustin Unified School District National Econ Corporation Interior Legacy Magnet Academy Asbestos in dust 9 0 City of Tustin
11/24/2023 Homeowner J5hjq Safeguard EnviroGroup Interior CS -Private Residence Asbestos in dust 3 0 J5hjq
11/24/2023 Homeowner J5hjq Safeguard EnviroGroup Interior CS -Private Residence Asbestos in dust 1 0 J5hjq
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Asbestos in air 8 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Asbestos in solid debris 8 4 12%-15% Chrysotile in 4 samples CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse Asbestos in air 2 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Lead / Metals in dust 1 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse Lead / Metals in dust 1 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse - Air Filters Asbestos in dust 3 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS Pool Asbestos in water 1 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS Pool Lead / Metals in water 1 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS Wader Asbestos in water 1 0 CS Resident Portal
11/30/2023 Columbus Square HOA Omega Environmental Exterior CS Wader Lead / Metals in water 1 0 CS Resident Portal
12/1/2023 (est) Homeowner 8g2g4 JLM Environmental Interior CS -Private Residence Asbestos in dust 5 0 8g2g4
12/1/2023 (est) Homeowner 8g2g4 JLM Environmental Interior CS -Private Residence Asbestos in air 1 0 8g2g4
12/1/2023 (est) Homeowner B85ra JLM Environmental Interior CS -Private Residence Asbestos in air 1 0 B85ra
12/1/2023 (est) Homeowner B85ra JLM Environmental Interior CS -Private Residence Asbestos in dust 3 0 B85ra
12/4/2023 Cambridge Lane HOA AQS Environmental Services Exterior Cambridge Lane - Various Asbestos in dust 20 0 Peer Review Findings BHE Management
12/4/2023 Cambridge Lane HOA AQS Environmental Services Exterior Cambridge Lane - Various Lead in dust 20 0 Unable to confirm lead at concentrations
in excess of CDPH criteria		 BHE Management
12/21/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Parks Asbestos in dust (Qualitative) 3 0 Chrysotile detected in 2 samples
(Qualitative only)		 CS Resident Portal
12/21/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Parks Asbestos in soil 3 0 CS Resident Portal
12/21/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Parks Asbestos in solid debris 3 0 <1% Chrysotile in 1 sample CS Resident Portal
12/21/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Parks Lead / Metals in dust 6 0 CS Resident Portal
12/21/2023 Columbus Square HOA Omega Environmental Exterior CS - Various Parks Lead / Metals in soil 3 0 CS Resident Portal
12/27/2023 Orange County Health Care Agency OCHCA Exterior Arlington Park Lead in dust 5 0 City of Tustin
12/27/2023 Orange County Health Care Agency OCHCA Exterior Arlington Park Lead in soil 4 0 City of Tustin
12/27/2023 Orange County Health Care Agency OCHCA Exterior CS Clubhouse / Playgrounds / Pool Lead in dust 12 0 City of Tustin
12/27/2023 Orange County Health Care Agency OCHCA Exterior CS Clubhouse / Playgrounds / Pool Lead in soil 7 0 City of Tustin
12/27/2023 Orange County Health Care Agency OCHCA Exterior Montgomery Park Lead in dust 5 0 City of Tustin
12/27/2023 Orange County Health Care Agency OCHCA Exterior Montgomery Park Lead in soil 4 0 City of Tustin
12/28/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Asbestos in air 1 0 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse Asbestos in air 2 0 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Asbestos in dust 1 0 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse Asbestos in dust 2 0 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Lead / Metals in dust 1 0 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Interior CS Clubhouse Lead / Metals in dust 2 1 14 μg/ft² lead in 1 sample
(location resampled 1/11/2024)		 CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Dripline Asbestos in soil 3 0 0.1% Chrysotile in 1 sample CS Resident Portal
12/28/2023 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Dripline Lead in soil 4 0 CS Resident Portal
1/11/2024 Columbus Square HOA Omega Environmental Exterior CS Clubhouse Lead / Metals in dust 8 0 CS Resident Portal
1/11/2024 Columbus Square HOA Omega Environmental Interior CS Clubhouse Lead / Metals in dust 7 0 CS Resident Portal
1/12/2024 City of Tustin GeoSyntec Exterior Legacy - Various Lead in solid debris 6 0 City of Tustin
1/15/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Asbestos in solid debris 9 6 18%-24% Chrysotile in 6 samples Graystar Management
1/16/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 17 0 Graystar Management
1/16/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Asbestos in dust 2 0 Graystar Management
1/16/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 22 3 16 μg/ft², 240 μg/ft², & 12 μg/ft² in garages Graystar Management
1/16/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 4 0 Graystar Management
1/17/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 12 0 Graystar Management
1/17/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/17/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 24 2 37 μg/ft², & 11 μg/ft² in garages Graystar Management
1/17/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/18/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/18/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Asbestos in solid debris 4 1 40% Chrysotile in 1 sample Graystar Management
1/18/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 24 0 Graystar Management
1/18/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/18/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/19/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/19/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 24 0 Graystar Management
1/19/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/19/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/20/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/21/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/22/2024 Columbus Square HOA Omega Environmental Exterior CS Pool Asbestos in water 1 0 CS Resident Portal
1/22/2024 Columbus Square HOA Omega Environmental Exterior CS Spa Asbestos in water 1 0 CS Resident Portal
1/22/2024 Columbus Square HOA Omega Environmental Exterior CS Wader Asbestos in water 1 0 CS Resident Portal
1/22/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 35 0 Graystar Management
1/22/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 23 0 Graystar Management
1/22/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/22/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 1 0 Graystar Management
1/23/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/23/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 23 1 13 μg/ft² in garage Graystar Management
1/23/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/23/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/24/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/24/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 26 0 Graystar Management
1/24/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/24/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/25/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/25/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 28 1 55 μg/ft² in garage Graystar Management
1/25/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/25/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/26/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/26/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 28 2 19 μg/ft², & 23 μg/ft² in garages Graystar Management
1/26/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/26/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 4 0 Graystar Management
1/27/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/28/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/29/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/29/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 28 1 20 μg/ft² in garage Graystar Management
1/29/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/29/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 3 0 Graystar Management
1/30/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 36 0 Graystar Management
1/30/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 28 0 Graystar Management
1/30/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 3 0 Graystar Management
1/30/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in soil 2 0 Graystar Management
2/22/2024 Cambridge Lane HOA Pacific EH&S Services Exterior Cambridge Lane - Door & Window Frames Lead in dust 54 0 CS Resident Portal
2/22/2024 Cambridge Lane HOA Pacific EH&S Services Exterior Cambridge Lane - Rain Gutters Lead in dust 18 13 between 600-4,200 μg/ft² in gutters CS Resident Portal
2/22/2024 Cambridge Lane HOA Pacific EH&S Services Exterior Cambridge Lane - Roofs Lead in dust 16 0 CS Resident Portal
2/22/2024 Cambridge Lane HOA Pacific EH&S Services Exterior Cambridge Lane - Various Asbestos in dust 132 0 CS Resident Portal
2/22/2024 Cambridge Lane HOA Pacific EH&S Services Exterior Cambridge Lane - Various Lead in dust 44 0 CS Resident Portal
3/1/2024 City of Tustin Geosyntec Interior CS -Private Residence Asbestos in dust 150 0 City of Tustin
3/1/2024 City of Tustin Geosyntec Interior CS -Private Residence Lead in dust 150 1 170 μg/ft² in 1 sample City of Tustin
3/1/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Lead in dust 115 0 Graystar Management
3/1/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Lead in dust 22 0 Graystar Management
3/1/2024 Coventry Court Luxury Senior Apartments Envirocheck Interior CC - Various Asbestos in dust 129 0 Graystar Management
3/1/2024 Coventry Court Luxury Senior Apartments Envirocheck Exterior CC - Various Asbestos in dust 8 0 Graystar Management
5/6/2024 Columbus Square HOA Omega Environmental Exterior CS - Astoria & Charleston locations Lead in dust 3 0 CS Resident Portal
5/6/2024 Columbus Square HOA Omega Environmental Exterior CS - Astoria & Charleston locations Asbestos in dust 3 0 CS Resident Portal
6/13/2024 Camden Place HOA Omega Environmental Exterior Camden Place - Window Ledges Asbestos in dust 44 0 Camden Place HOA
6/13/2024 Camden Place HOA Omega Environmental Exterior Camden Place - Window Ledges Lead in dust 44 0 Camden Place HOA
8/28/2024 Columbus Square HOA Simple Lab Exterior CS Pool Asbestos in water 1 0 CS Resident Portal