John Bednarik II was spotted by the woman - after she threw on a shirt and left her office - coming out of a neighbouring room. He has since been charged with invasion of privacy and fired from his position as the school’s director of campus environment.
According to the Huffington Post, the 33-year old "admitted" to police "that he had created the small hole in the tile in [his colleague's office] to allow viewing and recording of her while partially nude, for the purpose of his own sexual arousal and gratification."
Upper Saucon Valley police later found video of the woman pumping on the camera.
Open Image Modal
Pictures of the Day: 8 June 2012
(01 of07)
Open Image Modal
Zoe Salmon celebrates carrying the Olympic Flame in Antrim Forum, Antrim Town on behalf of Samsung - a presenting partner of the London 2012 Olympic Torch Relay, Belfast. (Photo credit: Liam McBurney/PA Wire
(02 of07)
Open Image Modal
A member of the Bathini Goud family administers 'fish medicine' to a patient at the Katedan stadium in Hyderabad, on June 8, 2012. The medicine, which has been offered by the family of the southern Indian city to patients for the last 161 years as a cure to asthma and other breathing disorders, is placed in the mouth of a live murrel fish and then slipped into the mouth of the patient. The medicine is administered on the auspicious day of 'Mrigasira Karti' which falls in June with the onset of the annual monsoon. The treatment, which is based on a secret herb formula, draws thousands of people from all over the country. (Photo credit: NOAH SEELAM/AFP/GettyImages)
(03 of07)
Open Image Modal
The satirical puppet of Act Leader Don Brash hangs from a wall after a fire at The Backbencher Pub and Cafe on June 8, 2012 in Wellington, New Zealand. The satirical political puppet of United Future leader Peter Dunne and Maori Party co-leader Pita Sharples were damaged in the fire that is that is thought to have started in the kitchen. The neighbouring apartment complex was forced to evacuate, but no one was injured in the fire. (Photo credit: Hagen Hopkins/Getty Images)
(04 of07)
Open Image Modal
Sri Lankan cricketer Sanath Jayasuriya (L) performs during the launch of this season's Colors television channel Hindi reality dance show 'Jhalak Dikhhla Jaa' in Mumbai on June 7, 2012. (Photo credit: STRDEL/AFP/GettyImages)
(05 of07)
Open Image Modal
From left, Boston Celtics' Paul Pierce, Kevin Garnett and Ray Allen sit on the bench late in the fourth quarter while trailing the Miami Heat in Game 6 of the NBA basketball Eastern Conference finals, Thursday, June 7, 2012, in Boston. Miami won 98-79. (Photo credit: AP Photo/Charles Krupa)
(06 of07)
Open Image Modal
A Philippine wildlife official holds a sailfin lizard at the parks and wildlife in Manila on June 8, 2012. This lizard one of six of the colourful reptiles that were repatriated to Manila on June 7, 2012 after Hong Kong customs seized them from smugglers on February 8, 2012. The one-metre-long, river-dwelling lizards are found only in the Philippines and are considered threatened species, making it illegal to catch or traffic them. (Photo credit: JAY DIRECTO/AFP/GettyImages)
(07 of07)
Open Image Modal
Indian believers wait to collect their tokens prior to receiving 'fish medicine' at the Katedan stadium in Hyderabad, on June 8, 2012. The medicine, which has been offered by the family of the southern Indian city to patients for the last 161 years as a cure to asthma and other breathing disorders, is placed in the mouth of a live murrel fish and then slipped into the mouth of the patient. The medicine is administered on the auspicious day of 'Mrigasira Karti' which falls in June with the onset of the annual monsoon. The treatment, which is based on a secret herb formula, draws thousands of people from all over the country. (Photo credit: NOAH SEELAM/AFP/GettyImages)