The $11.3 million project is recommended by the U.S. Environmental Protection Agency to stop the contamination of the Tanapag Lagoon.
The project will open the area to the public as a leisure facility, but no structure usually seen at other parks, like a pavilion, can be constructed at the site.
DPW solid waste technical adviser Steve Hiney said the bid opening was initially scheduled July 24, but since there might be interested firms from off-island, , it was moved to Aug. 6, at 10 a.m.
DPW, he said, has successfully secured a permit from the U.S. Army Corps of Engineers, a water quality permit and a major siting permit from the Coastal Resource Management Office.
Hiney said they already consulted concerned agencies in addressing endangered species and cultural resources in the area.
The construction schedule, he added, will be 365 working days.
The job consists of reforming the mound and assessing potential hazardous waste, including unexploded ordnance.
Once the hill is cleared, excavation, sloping and the installation of a geo-membrane erosion control system will follow.
Methane gas that is possibly vented off from the bottom of the hill will also be collected and monitored.
DPW will build wells in the area to be able to sample water for the next 30 years.
Although there is no significant impact since the monitoring of the 19-acre dump in 2001, federal law has required the CNMI to implement post-closure care during which the water underneath will be tested twice a year in 30 years.
