Air Monitoring at Harbor Point
Working with the U.S. Environmental Protection Agency (EPA), the Maryland Department of the Environment (MDE), and Honeywell, and in accordance with OSHA regulations, Beatty Development Group has taken extensive precautions to protect the health and safety of the community and the workers during any construction at Harbor Point.
The EPA and the MDE must approve detailed design and air monitoring plans for the construction of each building at Harbor Point. The plans, including operating procedures that will be overseen by both agencies, ensure that construction will be done in a way that protects human health, the environment, and the existing remedy at Harbor Point. The site was remediated in the 1990s pursuant to a federal Consent Decree, which requires that any construction protects the remedy.
The Harbor Point Construction Air Monitoring System is a sophisticated network that measures dust in real-time, allowing for rapid implementation of dust suppression activities if necessary. Chromium, if present in the air, would be contained in the dust. Thus, dust control is the primary goal of the Construction Air Monitoring Plan. The plan is in effect when there is any disturbance of the soil below the protective multi-media cap.
Demonstrated, effective measures will be taken to prevent dust from leaving the work zone. These measures include using water misting to suppress dust, limiting the size of the open area at any one time, and placing clean materials over impacted soil so that dust from the impacted soil cannot be generated, as well as other Best Management Practices.
The dust control measures are designed to keep concentrations below the dust action levels approved by the agencies. The Construction Air Monitoring Plan includes procedures to be followed if dust reaches the action levels, including determining the cause of the elevated dust; ensuring that all dust mitigation measures are working effectively; suspending construction work as appropriate; and making recommendations for improvements, if any.
The action levels are within the range of background dust levels detected during a previously conducted background air monitoring study, and as a conservative measure, well below the maximum dust levels detected. Air monitoring data posted on the website will note the reason for any exceedances of the action level. These are likely to include sources unrelated to redevelopment including idling trucks, commuter traffic, weather such as fog, and other off-site construction activities.