Cambridge Water Co Ltd v Eastern Counties Leather plc [1994] 1 All ER 53 is a case in English tort law that established the principle that claims under nuisance and Rylands v Fletcher must include a requirement that the damage be foreseeable; it also suggested that Rylands was a sub-set of nuisance rather than an independent tort, a debate eventually laid to rest in Transco plc v Stockport Metropolitan Borough Council.

The Cambridge Water Company were a company responsible for providing potable water to the inhabitants of Cambridge and the surrounding areas. In 1976, they purchased a borehole outside Sawston to deal with rising demand. In 1980, a European Directive was issued requiring nations of the European Community to establish standards on the presence of perchloroethene (PCE) in water, which the United Kingdom did in 1982. It was found that the Sawston borehole was contaminated with PCE that had originated in a tannery owned by Eastern Counties Leather. Prior to 1980, there was no knowledge that PCE should be avoided or that it could cause harm, but the Cambridge Water Company brought a case against Eastern Counties Leather anyway.

The case first went to the High Court of Justice, where Kennedy J dismissed claims under nuisance, negligence and Rylands v Fletcher because the harm was not foreseeable. His decision was reversed by the Court of Appeal of England and Wales, who cited an "obscure decision" to justify doing so. The case then went to the House of Lords, where a decision was read by Lord Goff on 9 December 1993. Goff first countered the Court of Appeal decision, restoring Kennedy's dismissal of the case, before moving on to the deeper legal points. Based on the original decision in Rylands, Goff argued that it had always been intended for foreseeability of harm to be a factor, something not previously put into law by the English judiciary. He then stated that Rylands was arguably a sub-set of nuisance, not an independent tort, and as such the factors which led him to including a test of foreseeability of harm in Rylands cases also imposed such a test on all nuisance cases.

The decision in Cambridge Water Co made an immediate change to the law, for the first time requiring foreseeability of harm to be considered in cases brought under Rylands v Fletcher and the general tort of nuisance. It was also significant in implying that Rylands was not an independent tort, something later concluded in the Transco case. Goff's judgment has been criticised on several points by academics, who highlight flaws in wording which leave parts of the judgment ambiguous and a selective assessment of Rylands that ignores outside influences. (Full article...)