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9084 · 4.2.3

Rylands v Fletcher — practice questions

Practice and worked examples for 9084 Rylands v Fletcher. Short previews only — attempt the full question in MarkScheme against the official scheme.

Worked example 1

A factory stores 50,000 litres of industrial solvent in tanks on its site. A pipe fractures; solvent seeps through soil and contaminates a neighbour's water supply. The factory took reasonable maintenance care. Advise the neighbour on Rylands v Fletcher liability. [15 marks]

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Rylands elements:

  1. Bring on land for own purposes: Factory stored solvent for manufacturing — satisfied.
  2. Likely to do mischief if escapes: Industrial solvent contaminating water — satisfied.
  3. Non-natural use: Cambridge Water v Eastern Counties Leather — storage of solvents in commercial quantities in industrial area analysed. Large-scale industrial chemical storage = non-natural use (special risk beyond ordinary land use).
  4. Escape: Solvent seeped off factory land into neighbour's supply — satisfied (Transco v Stockport — gas leak from pipe under highway = escape).
  5. Damage: Contamination of water supply — property damage (Cambridge Water — pollution damage recoverable if foreseeable type).

Foreseeability (Cambridge Water): Type of harm (water contamination) must be reasonably foreseeable — likely satisfied for solvent seepage.

Negligence irrelevant: Reasonable maintenance does not defeat Rylands — strict liability once elements met.

Defences: Neighbour did not consent; no act of stranger unless pipe failure was third-party vandalism; act of God unlikely.

Conclusion: Neighbour has strong Rylands claim for remediation costs and property damage. Also consider private nuisance and negligence as alternatives.

Worked example 2

ChemCorp stores 20,000 litres of corrosive acid on its industrial site. A valve fails, and 5,000 litres escape onto Mr. Giles's neighbouring farm, destroying 2 hectares of his organic wheat crop, which had a market value of £15,000 per hectare. An open gate on Mr. Giles's land allowed the acid to spread to an additional 0.5 hectares. Advise Mr. Giles on his claim against ChemCorp, including a calculation of likely damages. [20 marks]

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1. Establishing Liability under Rylands v Fletcher:

  • Accumulation: ChemCorp brought and stored 20,000 litres of acid for its own purposes. Satisfied.
  • Likely to do mischief: Corrosive acid is inherently dangerous if it escapes. Satisfied.
  • Non-natural use: Large-scale storage of industrial chemicals is an 'extraordinary and unusual' use of land (Transco). Satisfied.
  • Escape: The acid moved from ChemCorp's land to Mr. Giles's farm. Satisfied.
  • Foreseeable damage: Damage to crops from a corrosive acid escape is a reasonably foreseeable type of harm (Cambridge Water). Satisfied.

2. Defences:

  • The most relevant defence is Contributory Negligence. Mr. Giles left a gate open, which contributed to the extent of the damage. Under the Law Reform (Contributory Negligence) Act 1945, the court can reduce the claimant's damages to reflect his share of responsibility.

3. Calculation of Damages (Quantum):

  • Step 1: Calculate the total value of the destroyed crop.

    • Total area damaged: 2.0 hectares
    • Value per hectare: £15,000
    • Total loss: 2.0 ha * £15,000/ha = £30,000
  • Step 2: Calculate the portion of loss attributable to the claimant's negligence.

    • Additional area damaged due to open gate: 0.5 hectares
    • Value of this additional loss: 0.5 ha * £15,000/ha = £7,500
  • Step 3: Determine the percentage reduction for contributory negligence.

    • The claimant's fault contributed to £7,500 of the £30,000 total loss.
    • Percentage contribution: (£7,500 / £30,000) * 100 = 25%
  • Step 4: Calculate the final damages award.

    • Total loss: £30,000
    • Reduction for contributory negligence (25%): £30,000 * 0.25 = £7,500
    • Final Award: £30,000 - £7,500 = £22,500

Conclusion: Mr. Giles has a strong claim against ChemCorp under Rylands v Fletcher. However, his damages are likely to be reduced by approximately 25% to £22,500 due to his contributory negligence in leaving the gate open.