Delta chief executive Grady Cameron said in a statement released yesterdaythe company had been awarded three contract packages to repair or replace damaged wastewater infrastructure in the Garden City.
The extra work meant the company would need to recruit another eight staff to add to the 50 already based in Christchurch, a Delta spokesman, Gary Johnson, confirmed.
The company had maintained a presence in Christchurch since 2001, and had already completed about $5 million worth of repair and reconstruction work since the earthquakes struck, he said.
Mr Cameron said the latest contracts would mean Delta crews working alongside those from Fletcher Construction on two of the contracts - a $2.8 million project in Shirley, in northeast Christchurch, and a $1.3 million project in Innes Rd, St Albans.
A third $1.4 million project in Charleston would be completed alongside Downer staff, with the projects together worth $5.5 million to Delta, he said.
Delta's staff would be replacing broken sewer pipelines, wastewater pump stations, damaged manhole covers and repairing or replacing connections between the sewer main and individual houses.
Work had already begun and was expected to take up to six months to complete, he said.
