Advanced Disposal has acquired waste hauler Williams Sanitation Services, LLC, based in Dubois, Pa., for an undisclosed amount.

The purchase includes commercial and residential customers in the Brookville, Punxsutawney and Brockway areas covering Jefferson, Elk and Clarion counties. Advanced Disposal is adding eight Williams Sanitation Services employees, the Ponte Vedra, Fla. company said in a news release.

“Advanced Disposal continues to seek ways to expand our footprint, and the acquisition of Williams Sanitation presented an opportunity for us in the greater Dubois area,” said Dave Lavender, Advanced Disposal’s region vice president.

The deal represents the eighth acquisition by Advanced Disposal in 2015, but the first since June. That month Advanced bought the Smethport, Pa.-based waste company CF Burdick Trucking; the Decatur, Ill.-based Ross Disposal Services; and Disposal Management Systems Inc., based in Schaumburg, Ill.

The company issued in August an initial public offering (IPO) to go public. Industry analyst Michael E. Hoffman, managing director, Stifel, Nicolaus & Co. Inc., shared in an interview with Waste360 his thoughts on what he thought the move could mean. Hoffman says he believes the move is being pushed by the private equity team because they need to start getting the long process of monetizing their investment.

He also says the IPO could get Advanced Disposal’s balance sheet to a place where there isn’t any deal the company couldn’t be involved in. Currently, Hoffman says, the leveraged balance sheet presents some restrictions.