1 L E A D T E C H
E N V I R O N M E N T A L
April 10, 2023
Art Gomez
City of Commerce
Public Works and Development Services Department
2535 Commerce Way
Commerce, CA 90040
Re: Single Family Projects
Dear Mr. Gomez:
Pursuant to your request, please accept this letter as Lead Tech’s proposal to conduct limited asbestos testing and clearance, and lead paint testing and clearance for the upcoming residential rehabilitation projects in the City of Commerce.
LEAD PAINT
LTE will send a California Department of Public Health certified lead sampling technician to perform a limited lead screening of the components that will be disturbed during the rehabilitation scope of work He will use a portable XRF LBP Spectrum Analyzers manufactured by Radiation Monitoring Devices (“RMD”) to test for LBP. The LBP analyzers are equipped with 12 mCi cobalt 57 sealed radioactive source. LTE will calibrate the XRF pursuant to the manufacturer’s specifications and regularly verified XRF readings against pre determined lead samples produced by the National Institute of Standards and Testing (NIST). All of these quality control measures produce a 95% confidence level that our XRF readings accurately reflect the actual level of lead in the tested surfaces.
LEAD RISK ASSESSMENT
If LTE detects lead based paint and pursuant to 24 CFR Part 35, we will need to conduct a risk assessment as each owner is receiving greater than $5,000. HUD now mandates taking 9 wipe samples and 2 soil samples during a risk assessment. If LTE does not detect lead based paint, a risk assessment is not necessary.
ASBESTOS
LTE will send a certified site surveillance technician, Rolando Mireles (CAL OSHA 12-4971) to conduct limited asbestos sampling. LTE will sample all the visible and accessible suspect asbestos containing materials that will be impacted during the renovation. Please note the South Coast Air Quality Management District (SCAQMD) is mandating that asbestos inspectors take 3 samples from each suspect asbestos containing materials. As a result, inspectors need to take 3 samples from materials that in the past we would only take 1 sample such as roof penetration, roof felt, HVAC insulation, etc. The number of samples will increase for most asbestos inspections.
Upon completion of the limited asbestos sampling, our inspector completed chain-of-custody forms and sent same with bulk samples to the laboratory for bulk sampling analysis. Asbestos samples 2 were sent to AmeriSci, for bulk sample analysis. AmeriSci is accredited by the National Institute of Standards and Technology (NIST) under the National Voluntary Laboratory Accreditation Program (NVLAP) for analysis.
Bulk sample analysis was performed using Polarized Light Microscopy with Dispersion Staining (PLM/DS) in accordance with the Environmental Protection Agency’s (EPA) “Interim Method of Determination of Asbestos in Bulk Insulation Samples”, EPA Method 600/R-93/116. The identification of asbestos fiber bundles is determined by the visual properties displayed when the sample is treated with various dispersion staining liquids. Identification is substantiated by the actual structure of the fiber and the effect of polarized light on the fiber, all of which is viewed by the trained laboratory technician.
DEFINITION OF ASBESTOS
The EPA's Asbestos National Emissions Standards for Hazardous Air Pollutants (NESHAP) and the South Coast Air Quality Management District (SCAQMD), the local air pollution control district, define an asbestos-containing material as any material that contains a concentration of asbestos of greater than one percent (>1.0%) by area as determined by PLM (40 CFR Part 763, Appendix A, Subpart F Section 1).
State worker protection laws, as set forth by the California Occupational Safety and Health Administration, define asbestos materials as those that contain greater than one-tenth of one percent (>0.1%) asbestos by weight (a.k.a., trace). To evaluate whether a “trace” material contains greater than 0.1%, a test with a greater sensitivity, such as Transmission Electron Microscopy (TEM), would be required.
PRICE
LEAD PAINT
SERVICE FEE SCHEDULE
a. Limited XRF Lead Screening $295 SFR if only exterior. $275 Mobile Home if only exterior.
$300 if less than 50% of SFR.
$300 if less than 50% of Mobile Home.
2. Full HUD XRF Lead Paint
Inspection
$350 for HUD lead inspection no samples necessary if
lead free SFR.
$330 if Mobile Home.
3. Full HUD XFR inspection &
Risk Assessment
$370 + $15 a sample and we need to take 9 wipes & 2
soil sample.
4. Clearance Testing $285 + $15 a sample.
5. Treatment Recommendations Free when part of Risk Assessment or Inspection.
1. Laboratory Samples Wipe or
Soil
$15 each
3 ASBESTOS (ACM)
SERVICE FEE SCHEDULE
1. Visual Assessment $250 SFR.
$250 Mobile Home.
2. Limited ACM Inspection $340 includes up to 4 lab results SFR. Additional samples (if requested) are $13 per sample if requested with a lead paint inspection.
If only asbestos inspection requested, $300 is base price+ $13 a sample.
3. Comprehensive ACM $350 + $13 a sample/lab result.
4. Clearance Testing $325 includes 2 air samples. Additional samples (rarely necessary) are $20 per sample.
$275 visual clearance.
5. Treatment Recommendations Free when part of standard asbestos report.
LTE’s price per residential rehabilitation project with limited scopes or work will not exceed $1600.
If you have any comments or questions, please do not hesitate to contact me at 760-634-3700. You can also email me at [email protected].
Sincerely,