You need contractors pollution liability, usually at a $1,000,000 to $5,000,000 limit. That is coverage for fumes, dust, spills, or mold caused by your work. For sitework, make sure it also covers hauling soil and the disposal site you use. Who this is for: excavation, grading, utility, and sitework contractors who just saw "pollution liability" in a bid package.
The short version
- Your general liability policy excludes pollution. A struck fuel line, a moved pile of bad soil, or silt in a creek is usually not covered.
- Contractors pollution liability pays those claims, including the cleanup a state agency orders.
- For sitework, add coverage for hauling material and for disposal sites you do not own.
- Contracts usually ask for $1,000,000 to $5,000,000, and usually want the owner and general contractor named on your policy so they are covered if your work gets them sued.
- Illustrative cost for a small excavation firm is about $2,500 to $7,500 a year at a $1,000,000 limit.
What can an excavation or sitework crew release?
You move dirt, and dirt hides things. Here is what turns into a claim.
| What happened | What follows | General liability pays? |
|---|---|---|
| The bucket hits a fuel or gas line | Fuel soaks the soil, the state orders cleanup | Usually no |
| You uncover an old underground tank | It leaks when disturbed and the owner blames you | Usually no |
| You spread fill that turns out to be contaminated | The clean parcel now needs cleanup | Usually no |
| Silt runs off into a creek or storm drain | Fines and a cleanup order | Usually no |
| Your truck hauls soil to a site later found contaminated | You are named in the cleanup | No, and most pollution policies need a separate part for this |
Why doesn't my general liability policy cover a spill I caused?
Because nearly every general liability policy has a pollution exclusion. It removes claims for injury, damage, or cleanup from pollutants released at a site where you are working, or that you bring or haul there. The standard form gives back one thing an excavator should know about: fuel, oil, or hydraulic fluid that leaks out of your own machine. A line you strike in the ground is not covered by that, and many contractor policies add a total pollution exclusion, a separate page that removes even the leak from your own machine.
What should my pollution policy include for sitework?
Not every contractors pollution liability policy is built the same. Ask your broker to confirm six things.
- Cleanup costs, including cleanup a government agency orders.
- Hauling coverage, so a spill while you move soil or fuel is covered. Your auto policy has its own pollution exclusion, as the trucking pollution guide explains.
- Disposal site coverage, if a fill site you used later needs cleanup.
- An occurrence policy, which covers events that happen while the policy is active even if the claim comes years later.
- Finished work, because contamination is often found after you leave.
- Wording that names owners and general contractors, so they can use your policy if your work gets them sued.
What limits do contracts ask for?
| Kind of work | Typical pollution limit in the contract |
|---|---|
| Private commercial pads, small subdivisions | $1,000,000 for one incident and $2,000,000 total for the year |
| Municipal utility and road work | $1,000,000 to $2,000,000, often with the town named on your policy |
| Former industrial sites or gas stations | $2,000,000 to $5,000,000, sometimes a project policy |
| Large public infrastructure | $5,000,000, usually a pollution policy plus an excess layer from the same specialty market. Your regular umbrella excludes pollution and will not sit over a pollution policy unless it names it underneath. |
If your contract asks for more than you carry, see where to get pollution insurance fast. If you dig for a living, buy the annual policy. A project policy fits one large or unusual job (project versus annual).
What does pollution insurance cost for an excavation company?
These figures are illustrative. Excavators pay more than light trades because digging is where spills happen. Revenue, hauling, contaminated sites, your state, and your claims history set the real price.
| Business | Illustrative annual cost, $1,000,000 limit |
|---|---|
| Small excavator, 1 to 5 employees | $2,500 to $5,000 |
| Sitework firm, 6 to 20 employees, with hauling | $4,000 to $7,500 |
| Same firm at a $5,000,000 limit | Roughly one and a half to two and a half times the $1,000,000 price, because each layer above the first costs less per dollar. Ask for both prices. |
| Project policy, one job | $2,500 and up, and market minimums often start higher |
See how to find cheaper pollution coverage.
What will the application ask me?
Expect questions about how you locate utilities before you dig, how much work you do at former fuel or industrial sites, whether you haul material and where you dump it, and whether you remove tanks.
What this looks like in real life
Illustrative example. It is typical of what we see and is not a promise of how any specific situation would be handled.
The setup: An excavation contractor in Arizona with twelve employees digs footings for a retail pad on a lot that used to hold a gas station. He carries an annual $2,000,000 pollution policy that costs him an illustrative $5,800 a year.
What went wrong: The bucket hits an abandoned, unmarked fuel line. About 300 gallons of old diesel soak into the soil. The state orders soil removal and testing, and the owner bills him for three weeks of delay.
What it cost: Cleanup, testing, and disposal run about $140,000. The owner's delay claim adds $25,000. His general liability insurer denies the whole thing under the pollution exclusion. His pollution policy pays the cleanup, testing, and disposal, less his $5,000 deductible (the part of a claim you pay yourself first). The delay bill is a harder claim, because most pollution policies pay for injury, property damage, and cleanup, not a customer's lost time. Ask your broker whether your form covers delay.
The fix: For sitework, pollution coverage is not a contract checkbox. It is the policy most likely to save the company. Carry it every year, with cleanup costs and hauling included.
Frequently asked questions
Q: What pollution insurance do I need for excavation or sitework?
Contractors pollution liability, usually at a $1,000,000 to $5,000,000 limit. For sitework it should include cleanup costs, hauling, and disposal sites you do not own. Most excavators buy an annual policy.
Q: Does my general liability policy cover hitting a fuel line?
Usually not. Fuel is a pollutant, and the pollution exclusion removes injury, damage, and cleanup claims from a release. The form gives back fuel that leaks from your own machine, but not a line you strike in the ground.
Q: Is silt runoff a pollution claim?
Regulators treat it as one, and general liability insurers deny these claims as pollution. Courts have not always agreed that plain dirt counts, so the answer can depend on your state. Either way you pay a lawyer without pollution coverage. Pollution policies usually cover the cleanup.
Q: What if I haul soil to a site that turns out to be contaminated?
You can be named in the cleanup even if the soil was clean when you left. Ask for disposal site coverage on your policy. It is not automatic on every form.
Q: Do I need a separate pollution policy for each job?
No. An annual policy covers every job you do that year. Buy a project policy only for one large or unusual job where the owner wants a limit far above your normal program.
Q: How long does it take to get pollution insurance for a sitework contract?
Usually 2 to 10 business days with a complete application. Firms with a written utility locate procedure and no past spills are fastest. Send the bid package to your broker early.
How Morrow helps
Morrow is a licensed independent commercial insurance brokerage that works with contractors and trades every day. Placing pollution coverage that actually fits excavation and sitework, with hauling and disposal site coverage included, is something we do for contractors who dig.
- Free contract review. Send us the contract or bid documents and we mark up the insurance section in plain English, whether or not you buy anything from us.
- Free, instant certificates. Clients issue their own certificates of insurance online in about a minute, any hour, any day, at no charge.
- Markets you cannot reach online. One application, shopped across many insurance companies for general liability, workers comp, auto, umbrella, and pollution coverage.
One more thing. This article is general information and is not legal advice or a statement of coverage. Your contract and your policy wording control in every case. Requirements vary by customer, by state, and by insurance company, so have a licensed advisor review your own contract and your own policy before relying on any of it.
Last updated: Reviewed by the Morrow commercial lines team. Last updated September 2026.