The River Pang in Berkshire, designated by Thames Water as part of a prominent chalk stream restoration initiative, has been assigned a “poor” water quality classification by the Environment Agency in figures released this week. The river also failed testing for hazardous substances.
Thames Water launched the Pang Flagship Chalk Stream Partnership in 2022 with plans to deliver restoration efforts spanning 2025 to 2035. The company has contributed £875,000 to the partnership and stated that multiple factors influence water quality in the river, including agricultural runoff, industrial discharge, road drainage, and extreme weather events. According to Thames Water’s position, addressing these challenges requires a coordinated effort involving multiple stakeholders.
Chalk streams represent rare and biodiverse ecosystems globally, with approximately 85 percent of the world’s 260 chalk rivers located in the United Kingdom. Environmental advocates have criticized current approaches to water management, arguing that the industry’s practices prioritize profit over environmental protection. The Environment Agency identified barriers to fish movement between the Thames and the Pang as a key factor contributing to reduced fish populations and diversity in the river.
Both Thames Water and the Environment Agency indicated commitment to the restoration project’s continuation. The Environment Agency stated it was collaborating with partners, including through the Pang flagship initiative, to invest £2 million toward restoration and improvement efforts. Thames Water reiterated its commitment to establishing the Pang catchment as a model for partnership-based and community-led chalk stream restoration.
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