Air Monitoring: Berry Lane Park (Site Nos. 121 and 207)

Air quality remains well within safety limits

Protection of human health is the top priority during PPG Industries’ clean-up operations at its chromium sites, including Nos. 121 and 207, which are among the 11 properties the Jersey City Redevelopment Agency (JCRA) has acquired for the creation of Berry Lane Park.

JCRA is remediating the chromium at these sites under an agreement with PPG and in accordance with a work plan approved by the New Jersey Department of Environmental Protection. JCRA is also remediating other environmental conditions associated with rail yards and industrial facilities that were once present in the area under other NJDEP approved work plans.

To protect the community from airborne chromium exposure, JCRA is using containment and control measures at Site Nos. 121 and 207 that have proven to be effective by PPG at Site No. 114. These exposure prevention methods are detailed below.

As a result, since the cleanup at Site Nos. 121 and 207 began in July 2012, air quality has remained well within safety limits. See reports below for further detail.

Exposure Prevention Methodsspacer

Among the protective measures in use at Site Nos. 121 and 207 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, placing tarps on stockpiles of excavated material and spraying surfaces with dust-suppression materials.

JCRA has installed a combination of fixed and portable air monitoring stations at the perimeter of the future park site and along the edge of chromium cleanup areas to ensure safe conditions continue to be maintained during cleanup activities. Some of the monitors are only used while work is taking place but others operate 24 hours a day, seven days a week. Weekly and monthly reports below document conditions and note any deviations from the air monitoring plan caused by factors beyond the control of cleanup contractors, including inclement weather and malfunctioning equipment.

Chromespacer

Chromium samples are collected and results are compared to the acceptable air concentration limits established by NJDEP specifically for the cleanup sites on Garfield Avenue. The limit for hexavalent chromium 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. All chromium cleanup activities must meet NJDEP’s acceptable air concentration limit for the duration of the remediation. Monitoring for specific compounds such as chromium requires samples be collected and sent to a lab for analysis.

Dustspacer

Because dust can be measured in real time while work is taking place, dust monitoring is used by workers to take immediate action designed to protect community health if needed.. JCRA continuously measures dust as a surrogate for hexavalent chrome at nine air monitoring locations. Two of these monitors take measurements 24 hours a day, seven days a week. Full-time, dedicated air monitoring technicians located on site while work is being conducted review air monitoring readings to control site operations and implement additional dust-suppression measures as needed.

The NJDEP-approved air monitoring plan established a limit on total dust of 333 micrograms per cubic meter measured on a 15-minute average basis. This limit was derived based upon hexavalent chromium concentrations at the site.

Reportsspacer

January 7 – 11, 2013
December 31 – January 4, 2013
December 24 – 28, 2012
December 17 – 21, 2012
December 10 – 14, 2012
December 3 – 7, 2012
Monthly Report November 2012
November 24 – 28, 2012
November 12 – 17, 2012
November 5 – 9, 2012
Monthly Report October 2012
October 29 – November 2, 2012
October 22 – 26, 2012
October 15 – 19, 2012
October 8 – 12, 2012
October 1 – 5, 2012
Monthly Report September 2012
September 24 – 28, 2012
September 17 – 21, 2012
September 10 – 14, 2012
September 4 – 8, 2012
Monthly Report August 2012
August 27 – 31, 2012
August 20 – 24, 2012
August 13 – 17, 2012
August 6 – 10, 2012
July 30 – August 3, 2012
July 23 – 27, 2012