Affinity Water

Location📍 Hatfield, Hertfordshire

CategoryWater Only Company

Organisation Type💧 Water Only Company

Service Region🗺️ Central England — Herts, Beds, Bucks, Surrey

Affinity Water is the largest water-only company in England by customer numbers, supplying approximately 900 million litres of drinking water per day to 3.8 million people across a water-stressed region of Central England. The company has no sewerage responsibilities — all wastewater services in its area are provided by Thames Water.

Affinity Water AMP8 Investment Programme

Affinity Water's AMP8 programme (2025–2030) focuses exclusively on drinking water supply — the company does not hold sewerage responsibilities. The programme prioritises water resource resilience, water quality improvement and leakage reduction in one of England's most water-stressed regions, where demand pressure from population growth in the Home Counties creates ongoing supply challenges.

PR24 Final Determinations confirmed Affinity Water's investment allowance for AMP8, with the company under regulatory obligation to deliver measurable improvements across leakage, per capita consumption reduction and drinking water quality outcome delivery incentives.

AMP8 Capital Delivery Priorities

Water Resource Resilience

Affinity Water operates in one of England's most water-stressed regions. AMP8 includes significant investment in new and resilient resource options, including transfers, interconnections and demand-side management to reduce reliance on environmentally-sensitive chalk streams and aquifers.

Leakage Reduction

Ofwat's PR24 settlement includes ambitious leakage reduction targets for Affinity Water. AMP8 investment in pressure management, district metering, acoustic leak detection and mains renewal is central to meeting these obligations and improving network efficiency across the distribution area.

Lead Service Pipe Replacement

Affinity Water has a significant lead pipe replacement programme across its Central region network. AMP8 investment targets the replacement of lead communication pipes and service connections to eliminate the risk of lead contamination and meet DWI drinking water quality standards.

Smart Metering & Per Capita Consumption

Affinity Water is rolling out smart metering across its network as part of its AMP8 demand management strategy, targeting reductions in per capita consumption in partnership with a demand-side behavioural change programme. This supports both regulatory targets and regional water resource sustainability.

AMP8 Contractor Frameworks & Supply Chain

As a water-only company, Affinity Water's AMP8 supply chain focuses on drinking water treatment, distribution network works, leakage management, metering and environmental surveying. The company procures capital delivery through framework agreements covering civil engineering, mechanical and electrical works, specialist network services and professional engineering services.

Seeking Affinity Water AMP8 Opportunities?

Water Industry Hub tracks Affinity Water tenders and framework opportunities across its AMP8 capital programme. Monitor our tender intelligence service for live opportunities.

View Live Tenders →

Other Water Only Companies

Utiligroup Limited

Preston · Customer Experience / Billing

ANDRITZ LTD

Telford · Separation & Treatment Equipment

Cognica

· Academic & Research

OSS Enviro Global

Trimble Water Infrastructure

USA (UK active) · Field Mobility / Asset Management / GIS / Water Infrastructure

View all Water Only Companies in the directory →