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At Letterle, we are experienced at helping small to mid-size businesses clean up problems associated with petroleum contamination and walking them through the complicated maze of regulatory compliance.  If you have experienced a release from a regulated storage tank or are involved in the transfer of contaminated property, we can help!
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PA Corrective Action Process

Letterle has been guiding clients through the PA Corrective Action Process (CAP) in the most cost effective and professional way.

Our expert knowledge of environmental laws and daily interaction with Department of Environmental Protection Officials make the CAP process less complicated.

With a staff of state licensed geologists and engineers, as well as environmental scientists and field technicians, Letterle has the resources and experience to professionally handle your environmental concerns.

From the notice of release, to site characterization, remediation system design, operation and maintenance through regulatory closure, Letterle is there to walk you through the complicated maze of regulatory compliance.


Main Office
2859 Oxford Boulevard
Allison Park, PA 15101
Phone: 412-486-0600
Fax: 412-486-0674
Email: tjennewine@letterleassociates.com
Franklin Office
191 Howard Street, Suite 108
Franklin, PA 16323
Phone: 814-432-2167
Fax: 814-432-2632
Email: tkier@letterleassociates.com
Bellefonte Office
629 East Rolling Ridge Drive
Bellefonte, PA 16823
Phone: (814) 355-2241
Fax: (814) 355-2410
Email: streschow@letterleassociates.com