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:



Washington, DC UST Page:



Delaware UST Page:


Caliber Analytical Services, LLC.

8851 Orchard Tree Lane  |   Towson, Maryland 21286  |  Tel: 410-825-1151  |  Fax: 410-825-2162