Since early spring, Carlisle, Pa., water authorities and engineers with Herbert, Rowland & Grubic Inc., an engineering firm with six locations Pennsylvania, Ohio and West Virginia, have been opening manholes and using special cameras to inspect tens of thousands of feet of municipal sewer lines.

Some of the piping has been in place for more than a century. Repairs have been estimated to cost between $30 million and $50 million and will be partly funded with regular service rate increases over 10 years.

The firm and borough have also been offering to look at lateral lines, too. More details here.