Pollution Liability Insurance
Also known as Environmental liability, contractors pollution liability (CPL), site pollution (PLL)
Your general liability policy has a pollution exclusion. This is the coverage that fills the hole it leaves.
Pollution liability, also called environmental liability, covers the cleanup costs and third-party claims that follow a pollution condition tied to your business, the exact losses your general liability policy carves out with its pollution exclusion. It comes in two main forms: contractors pollution liability (CPL) for the environmental risk created by the work you perform, and site or premises pollution liability (PLL) for the property you own or operate. It responds to spills, contamination, and environmental damage, both sudden and gradual, and it increasingly shows up as a hard requirement in Nevada and California construction contracts, leases, and loan documents.
Reviewed for accuracy by Mark Hutchings, Licensed Insurance Producer (NV #3600994, CA #6003400).
Who needs Pollution Liability?
- Contractors whose work can disturb or release contaminants, including excavation, grading, demolition, plumbing, HVAC, roofing, painting, utilities, and environmental or remediation trades
- Property owners and managers with underground storage tanks, older buildings, or a site history that could hide contamination
- Businesses that store, handle, or transport fuel, chemicals, solvents, or waste
- Water and fire restoration contractors, and anyone whose work can lead to mold or bacteria claims
- Any business whose contract, lease, or lender now requires environmental or pollution coverage as a condition of the job
What it covers
- Third-party bodily injury and property damage caused by a pollution condition arising from your operations or your site
- On-site and off-site cleanup and remediation costs, including work ordered by a regulator
- Legal defense costs for covered pollution claims
- Mold, fungi, and bacteria claims, which standard general liability typically excludes (included or added by endorsement depending on the form)
- Both sudden and gradual pollution events, not just an overnight spill
- Transportation and non-owned disposal site exposures, depending on the coverage form
What it doesn’t cover
- Known, pre-existing contamination that you were aware of and did not disclose
- Government fines and civil or criminal penalties, though some policies still provide defense
- Deliberate disregard of environmental laws or permit conditions
- Bodily injury to your own employees, which is covered by workers’ compensation
- Asbestos and lead in some forms, unless specifically added back by endorsement
- Damage to your own work product, unless the contractors pollution form specifically includes it
Real claim scenarios
The ruptured fuel line
A Reno contractor’s excavator hits an unmarked underground fuel line, and diesel seeps into the surrounding soil. Contractors pollution liability pays for the emergency response, the soil remediation, and the neighboring property owner’s damage claim, none of which the general liability policy would have touched.
Water damage becomes a mold claim
A restoration contractor dries out a flooded office, but mold develops weeks later and a tenant files a bodily-injury claim. Because general liability excludes fungi and pollution, the pollution policy is what responds to the defense and the remediation.
The legacy storage tank
A California property owner discovers that an old underground storage tank has been slowly leaking into the groundwater. Site pollution coverage funds the state-mandated cleanup and defends the third-party claims from adjoining owners.
Scenarios are illustrative; actual coverage depends on your policy terms.
How it’s priced
Pollution coverage is priced around the specific environmental exposure you create, so a painter is rated very differently from an excavation contractor or the owner of a former gas station. Carriers weigh the type of work or site, your revenue or payroll, the materials involved, and your site history and controls. It is available on both claims-made and occurrence forms depending on the risk, and the limits and retroactive date you choose drive the final number.
- The nature of your operations and the pollution exposures they create
- Your annual revenue or payroll
- Whether you own or operate sites with tanks, chemicals, or a history of contamination
- Your use of subcontractors and of non-owned disposal or treatment sites
- Your environmental controls, permits, training, and compliance record
- The limits, deductibles, and retroactive date you select
What to watch out for
- This coverage exists because general liability has a broad pollution exclusion, so confirm exactly what your GL does and does not exclude before assuming you are protected
- Watch whether the policy is claims-made or occurrence, and protect the retroactive date so older work stays covered
- Known-condition and prior-contamination exclusions can be broad, so disclose site history honestly to avoid a denied claim
- Mold, asbestos, and lead are frequently sublimited or carved out, so read those provisions closely
- If you hire subcontractors, make sure their pollution exposure is addressed, either under your policy or by requiring their own
- Nevada and California contracts, leases, and lenders increasingly demand specific environmental limits, so match your coverage to what the contract requires
Pollution Liability FAQs
Related coverages
We tailor Pollution Liability for: Construction & Contractors, Commercial Real Estate.
Get Pollution Liability coverage that fits
We’ll match your limits and endorsements to what your contracts actually require — across Nevada & California.