HAMPTON TECHNICAL ASSOCIATES, INC Mark B. Schmidt, PLS Etna Technical Center - suite 201 35 Wilson Street Pittsburgh, Pennsylvania 15223 Phone: (412) 781-9660 Fax: (412) 781-5904 HAMPTON TECHNICAL ASSOCIATES, INC PO Box 976 Mars, Pennsylvania 16046 Phone: (724) 625-4544 Fax: (724) 625-4549 Email: email@hampton-technical.com Website: www.hampton-technical.com/