300 Kimball Drive in Parsippany, the home of Langan’s corporate headquarters
By Joshua Burd
Langan has made two additions to its tristate consulting team, including a new hire in its Parsippany office.
![](https://re-nj.com/wp-content/uploads/2020/11/Terry-Haelen-e1604888083313.png)
Terry Haelen joins the firm as a senior project manager, bringing more than 35 years of industry experience. During his career, he has worked on national and global projects with a primary focus on industrial and public clients, with expertise that includes strategic consultancy and advocacy across several service lines.
Those areas include remediation, due diligence, wastewater, environmental health and safety, environmental permitting, buried infrastructure rehabilitation and capital improvements, according to a news release. Haelen is based at Langan’s headquarters in the Morris County township.
![](https://re-nj.com/wp-content/uploads/2020/11/Greg-DelMastro-e1604888191418.png)
The firm also announced the hiring of Greg DelMastro, who is based in its White Plains office. He joins Langan to strengthen its power utility team in the Northeast, leveraging his 30 years of experience working on complex environmental projects, including investigation and remediation of brownfield, hazardous waste and manufactured gas plant sites, along with natural resource permitting.
DelMastro will lead multidisciplinary engineering teams through investigation, design and construction of utility projects, including electrical substations, service centers and linear projects, the news release said. He work closely with its New York City, White Plains and Parsippany offices and clients.