Shortly before 0600 hours York County Box 28-11 sent companies to 1159 Cly Road for a residential structure fire. Chief 27 on location with heavy fire from the second floor of a single family dwelling. All occupants were able to escape prior to arrival of the fire department. A second alarm assignment was requested. Several interior attack lines were deployed to knock down the fire. Due to lack of hydrants in the area a portable pond was set up for water supply. Crews remained on the scene with extensive overhaul before being released by Command.