POLANGUI, Albay – Three sink holes, one found at the back of a school, are a threat to students and residents of Bgy. Pinagdapugan in this town.
The sink holes were discovered in the upland part of the village after rains covered Bicol over the week.
According to Socorro Sambitan, head of the Municipal Disaster Risk Reduction Management Council (MDRRMC), the biggest among the three sink holes was discovered at the backyard of the Pinagdapugan Elementary School, with a diameter of about 1.5-meters.
The hole had caved-in over three meters deep.
Sambitan said two other sink holes, with over a-meter deep, were also discovered at a residential area at the back of the school.
She said the holes continue to cave-in every time there is a heavy downpour in the locality.
Soil samples from the softening ground portion were sent to the Department of Environment and Natural Resources - Mines and Geosciences Bureau (DENR-MGB).
The MDRRMC requested the MGB to inspect the sites of the sink holes.
Last week, classes at the Pinagdapugan Elementary School were suspended as the sink hole posed danger to elementary school pupils because of heavy rains.