Matthew A Echternacht, 32, of Myerstown, PA was charged with 2 counts of Driving Under the Influence and Speeding after a traffic stop that occurred at mile marker 43.4 on SR 222.   At 0018 hours, Echternacht's vehicle was stopped for travelling over 100 MPH in a 65 MPH zone.  Officers determined that Echtenacht was impaired and a breath test indicated that he had a blood alcohol concentration of .17% at the time of the test.   Echternacht was sent a summons to appear in District Court.