Water, Wastewater and Ancillary Services 2

Water supply, wastewater (sewage) and ancillary services that make usage more efficient and supply more resilient.


This agreement is a renewal of the RM3790 agreement and will run for 4 years. 

It is open to all public sector, non-residential premises in England, Wales and Northern Ireland. For example schools, NHS trusts and local authorities.

Businesses, charities or public sector organisations currently served by a water supplier based in Wales are only eligible to switch water retailers if they use more than 50 million litres of water a year. Otherwise they will continue to be served by their regional water company.

If your business premises are in Wales and your usage is above the 50 million litre threshold, you can choose to remain with your current retailer or switch.

You can contract with a supplier at any time during the agreement, and run a contract for up to a maximum of 4 years from when supply starts. 

Buyers can run a mini-tender or join a  CCS quarterly aggregation. As of 1 April 2017 eligible, non-household customers (those that pay business rates) can choose their water supplier. Ofwat has published full eligibility guidance and supplementary guidance.


  • access to aggregated e-auctions (for lot 1 only)
  • accurate management information: consumption and billing data are supplied to your request, including self-service online.
  • discounted list prices
  • optional water efficiency programmes can be accessed when you need them
  • financial savings – on average customers achieved a 4% reduction against the average retail margin using the existing agreement RM3790 (with some customers achieving up to a 10% reduction)
  • a dedicated account manager that offers a personalised service
  • a dedicated customer service team for improved support and query management
  • choice of billing format (consolidated billing, electronic billing and paper billing)
  • a quality service with suppliers monitored against framework KPIs and regular reporting and meetings with CCS
  • time and resource savings through simplified procurement process and supplier rationalisation.

Products and suppliers

There are 13 suppliers on this agreement

Lot 1: Water and Waste Water Services


7 suppliers

Lot 2: Ancillary Services


13 suppliers

Lot 3: One Stop Shop (Combined Lot 1 and Lot 2)


7 suppliers

How to buy

You can buy from this agreement by running a mini competition or by joining an aggregated E-Auction (for lot 1 only)

Further Competition Step by Step:

  1. create your statement of needs (what is it you need? Supply of water? Leak detection?)
  2. produce invitation to tender documentation (statement of need, evaluation criteria, pricing)
  3. invite relevant lot suppliers (using e-sourcing suite or email)
  4. run competition
  5. evaluate bids
  6. award 

E-Auction Step by Step:

  1. complete a switching template
  2. return the Switching Template by email to CCS for us to verify
  3. Data is collated onto a master document
  4. full aggregated customer list is given to competing suppliers
  5. CCS runs an e-auction
  6. results issued to customers