Underground Storage Tanks (UST)

CAS is an information resource for Underground Storage Tank (UST)
regulations in the State of Maryland, as well as Washington, DC, Delaware and Pennsylvania. We are intimately familiar with the analyses required for the MDE MTBE regulations. We have designed our UST services accordingly so that we can provide reliable, quality data at a reasonable cost.

New Regulation Summary; thru .03-6 and and .03

The routine analyses required for petroleum USTs are processed
efficiently so that we can offer rush services whenever
they are needed. We provide the following routine UST analyses:

Test Method
Purgeable Aromatics (BTEX, w/ or w/o MTBE, Naphthalene) EPA 8021B
Volatile Organic Compounds EPA 8260B
Total Petroleum Hydrocarbons (DRO) EPA 8015B
Total Petroleum Hydrocarbons (GRO) EPA 8015B
Polycyclic Aromatic Hydrocarbons (PAH) EPA 8270C

The following links provide additional and more
specific information on USTs:

Maryland UST Page:


Pennsylvania UST Page:

Washington, DC UST Page:

Delaware UST Page: