Scottish Water is on hunt for eight contractors to work on its £340m wastewater infrastructure framework.
The chosen firms would work for Scottish Water and its partner Byzak/Black & Veatch Waste Water Alliance over the regulatory period 2015 to 2021.
Scottish Water chose the Black & Veatch and [Amey subsidiary] Byzak joint venture for its Waste Water Alliance deal in February 2014.
The framework has been broken down into three lots: Infrastructure delivery partner; sewer rehabilitation delivery partner; electrical and mechanical delivery partner.
Up to three contractors would be selected to work on each lot, with an estimated individual contract value of £25m, and total spend on each lot ranging between £36m to £180m.
Tenders may be submitted for one or more lots, with up to six applicants asked to tender for each lot.