Air Monitoring: Burma Road (Site Nos. 63 and 65)

Protection of human health is a priority during PPG Industries’ cleanup operations at all of its chromium sites, including Nos. 63 and 65, otherwise known as Baldwin Oils and Burma Road, respectively. Both sites are located west of Burma Road near the intersection with Morris Pesin Drive.

To protect the community, PPG is using proven containment and control measures that have been approved by the New Jersey Department of Environmental Protection following a review by the independent technical consultant.

Among these protective measures is a dust-suppression plan designed to prevent excavated materials, including hexavalent chromium, from becoming airborne. Elements of the plan include water misting of work areas, spraying surfaces with dust-suppression materials and restricting truck traffic to paved areas. PPG has installed air monitoring stations at the perimeter of the site to maintain safe conditions during cleanup activities. Monitors are used while work is taking place, typically between 6 a.m. and 3 p.m., with laboratory samples collected 24 hours a day, seven days a week. Data from these monitors are included in the weekly reports posted below.

Chromium

Chromium samples are collected and results are compared to a limit established by the NJDEP. The limit is 49 nanograms per cubic meter of air, which is considered to be protective of human health based on U.S. Environmental Protection Agency assumptions for cancer risk. To meet the limit, average airborne concentrations of hexavalent chromium must be at or below 49 nanograms per cubic meter of air for the duration of the remediation. Monitoring for specific compounds such as chromium requires samples be collected and sent to a lab for analysis.

Dust

Dust, meanwhile, can be measured in real time while work is taking place, allowing workers to take immediate action designed to protect community health if needed. As a result, PPG measures dust as a surrogate for hexavalent chrome. The NJDEP-approved air monitoring plan established a limit on respirable dust of 339 micrograms per cubic meter measured for a 15-minute average. This limit is also known as the action level. Full-time air monitoring technicians located on site while work is being conducted review these readings to control site operations and implement additional dust-suppression measures as needed to protect the community.

Total Volatile Organic Compounds

Petroleum vapors, which are a component of total volatile organic compounds, or TVOCs, are measured as a surrogate for benzene, which is commonly found in petroleum. The air-monitoring plan has established a limit on vapors (as TVOCs) of 1.4 parts per million. Foam or other suppression technologies will be kept on hand for use if the TVOC action level is exceeded.

Naturally Occurring Radioactive Material

PPG has also encountered a naturally occurring radioactive material that will need to be segregated from the chrome waste. The slag is a hard, semi-metallic rock-like material that is resistant to cleaving or crushing. As a result, the material does not pulverize during excavation, is easily discoverable with common radiation detectors, and can be identified and removed from excavated volumes of soil. Because the slag does not crush or pulverize, there is little chance of liberating airborne particulates that contain radiation. However, PPG’s consultant, CB&I, will institute airborne radiological monitoring to confirm dust control measures are effective at controlling radioactive dust.

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May 2015: A review of air monitoring reports for Burma Road (Sites 63/65) identified minor reporting errors in the May, June, July and August 2014 monthly air monitoring reports.

The errors in the previously published May 2014, June 2014, July 2014 and August 2014 monthly reports have been corrected. In addition, the weekly reports have been updated to reflect the corrected Program-to-Date averages.

There have been no exceedances of either the Acceptable Air Concentration (AAC) for Cr6+ or the Action Level for PM10. Program-to-Date values continue to be well below the AAC for Cr6+ (49 ng/m3) and the Action Level for PM10 (339 mg/m3).

2015 0503-0509 Burma Road AM weekly report
2015 04-05 Burma Road Monthly AM Report
2015 0426-0502 Burma Road AM weekly report
2015 0419-0425 Burma Road AM weekly report
2015 0412-0418 Burma Road AM weekly report
2015 0301-0307 Burma Road AM weekly report
2015 02-03 Burma Road Monthly AM Report
2015 0222-0228 Burma Road AM weekly report
2015 0215-0221 Burma Road AM weekly report
2015 0208-0214 Burma Road AM weekly report
2015 0201-0207 Burma Road AM weekly report
2015 01 Burma Road Monthly AM Report
2015 0125-0131 Burma Road AM weekly report
2015 0118-0124 Burma Road AM weekly report
2015 0111-0117 Burma Road AM weekly report
2015 0104-0110 Burma Road AM weekly report
2014 12 Burma Road Monthly AM Report
2014 1228-0103 Burma Road AM weekly report
2014 1221-1227 Burma Road AM weekly report
2014 1214-1220 Burma Road AM weekly report
2014 1207-1213 Burma Road AM weekly report
2014 11 Burma Road Monthly AM Report
2014 1130-1206 Burma Road AM weekly report
2014 1123-1129 Burma Road AM weekly report
2014 1116-1122 Burma Road AM weekly report
2014 1109-1115 Burma Road AM weekly report
2014 1102-1108 Burma Road AM weekly report
2014 10 Burma Road Monthly AM Report
2014 1026-1101 Burma Road AM weekly report
2014 1019-1025 Burma Road AM weekly report
2014 1012-1018 Burma Road AM weekly report
2014 1005-1011 Burma Road AM weekly report
2014 09 Burma Road Monthly AM Report
2014 0928-1004 Burma Road AM weekly report
2014 0921-0927 Burma Road AM weekly report
2014 0914-0920 Burma Road AM weekly report
2014 0907-0913 Burma Road AM weekly report
2014 08 Burma Road Monthly AM Report
2014 0831-0906 Burma Road AM weekly report
2014 0824-0830 Burma Road AM weekly report
2014 0817-0823 Burma Road AM weekly report
2014 0810-0816 Burma Road AM weekly report
2014 0803-0809 Burma Road AM weekly report
2014 07 Burma Road Monthly AM Report
2014 0727-0802 Burma Road AM weekly report
2014 0720-0726 Burma Road AM weekly report
2014 0713-0719 Burma Road AM weekly report
2014 0706-0712 Burma Road AM weekly report
2014 06 Burma Road Monthly AM Report
2014 0629-0705 Burma Road AM weekly report
2014 0622-0628 Burma Road AM weekly report
2014 0615-0621 Burma Road AM weekly report
2014 0608-0614 Burma Road AM weekly report
2014 0601-0607 Burma Road AM weekly report
2014 05 Burma Road Monthly AM Report
2014 0525-0531 Burma Road AM weekly report
2014 0518-0524 Burma Road AM weekly report
2014 0511-0517 Burma Road AM weekly report
2014 0504-0510 Burma Road AM weekly report
2014 05 Burma Road Monthly AM Report
2014 0427-0503 Burma Road AM weekly report