Gradual Ammonia Leak: PLIA, CGL Pollution Exclusion and Cleanup
Ravi Chemicals operates a storage terminal handling chlorine and ammonia beside a lake in Gujarat. It holds a Public Liability Insurance Act 1991 policy for the statutory minimum limit and a separate occurrence-based CGL policy with a Rs. 10 crore limit, a Rs. 50 lakh deductible and an absolute pollution exclusion. In March 2024, 60 residents complained of nausea and breathing difficulty. An investigation found that a corroded underground pipeline had been leaking ammonia intermittently since at least 2022. The residents claim bodily injury and property damage. The state pollution control board has ordered cleanup and remediation costing Rs. 2.2 crore. The CGL insurer has denied liability, relying on the pollution exclusion. The PLIA insurer argues that a slow leak is not an 'accident'. The terminal's management wants to know what is covered and what is not.
1. Does the PLIA policy respond to the residents' claims? Consider the meaning of 'accident' and the no-fault nature of the Act.
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The PLIA policy is tied to the Public Liability Insurance Act 1991, which imposes no-fault liability on the owner for death or bodily injury and damage to property caused by an accident while handling hazardous substances. The claimants do not need to prove negligence; they need to show an accident and injury. The difficult point is 'accident', which is defined as a sudden or unexpected event. A corroded pipeline leaking intermittently since 2022 looks gradual, and the PLIA insurer will argue that gradual seepage is not an accident. The counter-argument is that the leak was unknown and unexpected from the owner's perspective, and the March 2024 acute episode was the sudden event that caused the residents' symptoms. On balance, the residents have a strong argument that the discovery and the acute exposure were an accident, even if the corrosion was gradual. If the claim is within the Act, the PLIA insurer must pay compensation according to the statutory limits and cannot rely on ordinary policy defences that are not in the Act. If the leak is held to be gradual, the PLIA cover may fail, and the residents would be left to common-law remedies.
2. Can the CGL insurer rely on the absolute pollution exclusion, and would a 'sudden and accidental' wording change the outcome?
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The CGL insurer can rely on the absolute pollution exclusion. The exclusion bars bodily injury, property damage and cleanup costs arising from the discharge, dispersal, release or escape of pollutants, including ammonia, regardless of whether the release was sudden, accidental or gradual. The residents' nausea and the property damage arise from ammonia, so the exclusion applies. If the policy had the older 'sudden and accidental' exception, the insurer would still have a strong defence because the leak was intermittent over two years and not sudden. The exception requires a sudden and accidental release; gradual corrosion and seepage do not meet that test. The deductible is irrelevant because no cover attaches. The CGL policy therefore does not respond to the residents' claims or the cleanup order, and the insurer should issue a clear denial citing the pollution exclusion and the gradual nature of the release.
3. Who bears the Rs. 2.2 crore cleanup cost?
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The cleanup cost falls on Ravi Chemicals. The CGL pollution exclusion bars cleanup costs as well as third-party damages, and the PLIA policy covers compensation to accident victims, not the owner's own remediation liability. The Environmental Relief Fund, funded by PLIA insurers, is intended for relief and rehabilitation of victims, not for an owner's compliance costs. The pollution control board's order is a regulatory liability of the owner. Unless Ravi Chemicals has a separate environmental impairment liability policy, which the facts do not mention, it must bear the Rs. 2.2 crore itself. The insurer should not pay the cleanup cost under either policy. The owner should also check whether any contractor or pipeline maintenance provider is contractually liable, but that is a recovery route, not cover. The practical lesson is that a CGL policy with an absolute pollution exclusion is not an environmental liability policy.