National Highways has declined to confirm that it will meet a pledge to mitigate by 2030 all outfalls that pose a “high-risk” of polluting the environment with toxic road runoff.
The company has published a document that its director of environmental sustainability, Stephen Elderkin, described on LinkedIn, as “detailing 182 confirmed high priority locations where outfalls or soakaways present a high-risk of pollution”.
But, while the locations are confirmed, the pledge to mitigate them appears far less certain.
The detailed document and map represent the next stage of the government-owned company’s 2030 Water Quality Plan, which:
sets out a high-level programme of work that achieves the plan to mitigate all high risk outfalls by 2030
However, that document also emphasizes that:
Delivery in RP3 will be subject to funding being agreed through RIS3.
Such funding has still not been formally agreed, although National Highways’ chief executive told Parliament that it is “proceeding on the basis that we will be funded” and the plan appears to be part of a funded National Programme.
Elderkin’s statement National Highways has “committed to mitigate the risk at high-risk locations by 2030 with the installation of new or upgraded treatment facilities” conspicuously lacks the word “all”.
The new document states that it:
contains details of sites confirmed through these processes as having an confirmed risk of pollution at the end of August 2025. These high priority locations include a total of 182 assets.
It adds:
We expect that, in all, approximately 250 outfalls and soakaways will be confirmed as requiring new or upgraded treatment systems by 2030.
While Elderkin stated that:
In total, we expect to deliver improvements to around 250 locations
this is a statement of expectation without a date.

Similarly, the new document conspicuously avoids making firm commitments. It lists for each location:
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