Personnel from the Navy, Public Health, the Labor Office, local police, the mayor of Chalong and local village chiefs found 57 men, 45 women and four children occupying the shanty camp.
Governor Nisit Jansomwong looked on as nurses made health checks and vaccinated some of the camp residents. Others were checked for having permission to work.
The governor said the central pool for ablutions did not appear to be especially hygenic and added that although the shacks had electricity, the provision of power did not appear to meet safety standards.
A single track led to the camp, making access for fire trucks in the event of a blaze difficult.
Some of the workers had been living in the camp at the Luangpusupa Temple in Chalong for three years, the governor was told. Workers were paid the minimum of 300 baht a day and subjected to a 9pm curfew.
The camp chief said that workers were trucked each day in three 10-wheel vehicles to the construction site, the Dewana Patong Resort in Patong, and brought back the same way.
At any time on Phuket, hundreds of the camps are thought to be home for thousands of construction workers, both legal and illegal.
The governor wants to improve conditions in the workers' camps.