Pasco County crews were set to resume installing a sewer lift station Monday after work was halted because of area sinkholes.

Geotechnical experts hired by the county gave the OK for work to continue, but with caution.

According to the county, the firm Professional Services Industries Inc. said "nothing was noted that would preclude the continuation of construction" at the site.

Measures were suggested to minimize dewatering because soil conditions in the surrounding areas have been shown to be relatively unstable, the county said.

"It is our opinion that minimal dewatering in the shallow 'surficial' soils for installation of the pipe does not pose a significant risk to the surrounding lands," county officials said in an email. "This is supported by the fact that the sewer system between Manhole 7 and 8 was constructed in October using conventional dewatering."

The report said there were a number of reasons for the area to have "depressions," including organic materials such as trees that were filled in. Historical USGS topographic maps and aerial photographs indicate the project area was a marshland before development, the county said.

The first sinkhole opened up in the Holiday Travel Park on Nov. 10 and swallowed a woman's Hyundai that had been parked on her driveway.

A second hole followed the next day, and two days after that, another one opened up about a half-mile from where the county was working

The county stopped its work and evacuated several more homes.