Herbicide overspray and the pollution exclusion in your GL

The honest answer is that Colorado’s applicator statute is written so that a policy which excludes the drift claim still counts as meeting the insurance requirement. That’s not a loophole somebody found. It’s in the text. A landscaper can hold the commercial applicator license, send the Department of Agriculture a certificate at the statutory minimum, and have nothing that pays when a Tuesday broadleaf application drifts across the fence and kills a neighbor’s vegetable garden. We insure landscaping contractors across Colorado, and this is the gap we find most often on a policy review. Here’s how the exclusion reads, how the statute reads, and what closes the distance between them.

The claim, before the paperwork

A ride-on spreader-sprayer puts down a selective herbicide on an HOA common area in Greeley at 9 a.m. Wind on the plains comes up at 10. By the afternoon the application has crossed the fence into a backyard with tomatoes, a young apple tree, and a lawn the homeowner had just overseeded. Three days later the tomatoes are curled and the homeowner has photos.

Or the version we see up high: a crew spot-sprays thistle along a driveway in Conifer, the afternoon thermal carries it downslope, and the neighbor’s aspen stand shows leaf damage a week later. Same claim, different plant.

The homeowner calls the HOA. The HOA calls you. You call us and tender the claim to your general liability carrier. The adjuster opens the file, reads the description, and goes to one section of the policy first.

What the pollution exclusion says

Under most standard commercial general liability forms, there’s an exclusion for bodily injury or property damage arising out of the discharge, dispersal, release, or escape of pollutants. And “pollutants” is defined broadly: any solid, liquid, gaseous, or thermal irritant or contaminant, with chemicals named in the definition.

Herbicide is a chemical you dispersed on purpose. It escaped where you didn’t intend. Under most forms, that’s the exclusion, and carriers commonly read pesticides and herbicides into that definition. The policy language controls and forms differ (some carry exceptions, some carry a broader version), which is exactly why we read your form rather than assume. But the starting position on a standard GL is that the drift claim is out.

What’s still in, on the same policy, is everything else the landscaping crew did that day. The mower’s rock through the sliding door. The customer who trips on a hose. The sod you scalped. The defense on all of it. The exclusion takes the chemical off the table and leaves the general liability policy doing the rest of its job.

What the statute says, and the parenthetical that matters

Colorado licenses commercial applicators through the Department of Agriculture, and the licensing statute puts an insurance requirement on the business.

Read the parenthetical twice. The legislature set a liability minimum, and in the same sentence said that a policy with a “so-called pollution exclusion” satisfies it. That’s the whole gap in one line. The state wanted licensed applicators to carry liability insurance. It did not require that the insurance cover the thing an applicator is most likely to be sued for.

Our read, as contractors and agents, is that the drafters knew standard GL forms carried the exclusion and didn’t want to make the license impossible to get. Whatever the reason, the effect is the same: the certificate you send the Commissioner proves you’re licensed. It proves nothing about drift coverage. Two different questions, and the second one never gets asked at licensing.

The three documents people confuse

Most landscapers have the first two and think they have the third. The licensing article covers the applicator license alongside every other license a Colorado landscaper answers to. This article is about the third row.

What closes the gap

Two ways, and which one depends on how much of your revenue is chemical.

A pollution endorsement on the GL. The carrier adds a limited pollution coverage to the landscaping policy, commonly with a sub-limit, that gives back the drift and spill claims the exclusion removed. For a maintenance crew that sprays pre-emergent twice a year and spot-treats weeds, this is usually enough, and it’s usually the smaller line on the bill.

A standalone contractors pollution liability policy. A separate policy with its own limit, written for the chemical program as a program. Once you run fertilization and weed control across a dozen HOAs in Fort Collins or Loveland, the endorsement’s sub-limit gets thin against a claim that involves a hundred yards of drift, a tree that takes years to replace, and cleanup. The pollution liability page covers the standalone form and what it typically responds to beyond drift: fuel spills from the truck, the brine tank on a plow lot, the fertilizer that ran into the storm inlet.

Either one is a real line on the premium, and the landscaping cost article puts it in context with the other drivers.

The habits that make the claim smaller

Coverage is the backstop. The application record is what keeps the claim small enough for the backstop to matter.

Log every application. Product, rate, target, date, time, wind speed and direction, applicator name. The Department has its own record-keeping rules for applicators; check them. A Colorado commercial pesticide applicator must keep a record of each pesticide application in the form the Commissioner of Agriculture designates and retain it for three years after the application date (C.R.S. 35-10-111); the rules require the record to show the customer, the location, the target pest, the site treated, the product and its EPA registration number, dilution and application rates, the date and time, and the applicator's name and license number (8 CCR 1203-2, Part 6). (C.R.S. 35-10-111(1); 8 CCR 1203-2, Part 6, §§ 6.01, 6.03) The adjuster reads the log first.

Read the wind. East of I-25, the morning is calm and the afternoon isn’t. On the Front Range foothills, the thermal runs upslope by late morning and downslope in the evening. Most drift claims we see happened after 10 a.m. on a day the crew should have moved to mowing.

Photograph the target area before you spray. A neighbor’s garden that was already struggling in April is a different claim than one that was thriving.

Tell the carrier first. A drift claim reported by you, with the log attached, gets a different reserve than one that arrives as a demand letter with photos you’ve never seen.

What to ask your attorney, and what to send us

The statute is short and linked in the sources; read it. Then read your own GL form’s pollution exclusion and any exceptions it carries, and bring both to whoever advises you on contracts. The questions: does this form’s definition of pollutant reach the products we apply, does the exclusion have any exception that would help on a drift claim, and does the HOA contract we sign require pollution coverage that our policy doesn’t have?

Where to go from here

If you spray and you aren’t sure what your policy says about it, Get Insured lists what to have ready, including the products you apply and the share of revenue they represent. Already carry a landscaping policy? Send the dec pages to the policy review and we’ll mark the pollution exclusion and any endorsement against the chemical program you actually run. The lawn care page covers the rest of a maintenance outfit’s exposures, and if the same crew plows in winter, the summer-and-winter gap article is the next read. No online quote, on purpose.

Serving businesses located in Colorado. Coverage is determined by the policy language and the carrier.