HomeMy WebLinkAboutFile Documents.1280 Red Butte Dr.0148-2023-BRES (5)EARTH ENERGY ENVIRONMENT (E3)
Industrial Hygiene and Environmental Engineering
October 19, 2023
Liberty Environmental LLC.
3699 S. Killarney Street
Aurora, CO 80013
Subject: Asbestos Air Clearance Report
1280 Red Butte Drive, Aspen, CO 81611
To Whom It May Concern:
Following is the project completion report for the work areas located at 1280 Red Butte Drive,
Aspen, CO 81611. The purpose of this report is to document this remediation project was
completed, and indoor asbestos amplification was not occurring in the work area.
The project remediation permit request was approved by CDPHE, the permit number had
not been received from CDPHE at the time of the clearance.
The remediation work areas (Living Area) were visually inspected in order to confirm the scope
of work was properly followed and completed. The containments were also visually inspected to
verify breaches and/or defects were not present.
An Industrial Hygienist for Earth Energy Environment (E3) performed the remediation project
completion inspection and testing procedures.
Phase Contrast Microscopy (PCM) samples were collected in accordance with the National
Institute for Occupational Safety and Health (NIOSH) method 7400 using cassettes (standard 3-
piece, 25 mm dia., 0.8 um MCE filter) purchased from Zefon International, Inc. Asbestos
concentrations in the containment were calculated as airborne fibers per cubic centimeter of air
(F/cc). Samples were read by an analysist working under Laboratory IHPAT Certification
No. 221103 (Proficient).
Visual Inspection, Air Clearance, and Sample Analyses Performed by:
Eli Willden
CDPHE Certifications No. 20139 and Colorado Consulting Firm No. ACF-21719
(303) 902-5851
ELI@E3C-USA.COM
5366 Godding Hollow Pkwy
Longmont, CO 80504
Local: 303.902-5851
PCM Air Clearance
Page 2 of 2
______________________________________________________________________
Visual inspection confirmed that no asbestos-containing debris was observed in the work areas.
Table 1 provides a summary of the sample numbers, sample volumes, and calculated
concentrations. The National Emission Standards for Hazardous Air Pollutants (N ESHAP)
clearance standard is 0.01 F/cc.
TABLE 1: PCM CLEARANCE - AIR SAMPLING RESULTS.
Date Unit/ Area Sample # Sample
Description
Sample
Volume *Fibers/cc
October
19, 2023
Air Clearance
at:
1280 Red Butte
Drive, Aspen, CO
81611
(Living Area)
CL-101923-1
CL-101923-2
CL-101923-3
CL-101923-4
CL-101923-5
BLK-1
BLK-2
Inside
Containment
Blanks
1345
1335
1355
1360
1340
-
-
0.001
0.001
0.001
0.001
0.001
BRL
BRL
*BRL denotes “Below Reporting Limits”. The PCM Colorado Department of Public Health and
Environment (CDPHE) clearance standard is 0.01 F/cc.
The PCM clearance air sample results were all below the NESHAP clearance standard of 0.01
F/cc. Based on the information presented above, E3 concludes that the containment area has
passed the air clearance testing as of October 19, 2023, at 7:00pm. The containment may be
removed, and the work area may be reoccupied after build back.
Thank you for allowing E3 the opportunity to provide environmental services to you. If you have
questions or require additional information, please contact me at (303) 478-0922.
EARTH ENERGY ENVIRONMENT (E3)
Eli Willden
CDPHE Certifications No. 20139
Colorado Consulting Firm No. ACF-21719