Uncertified Technician, a General-Use Herbicide, and a Storm Drain
You manage a three-person lawn-care crew in southern New Hampshire. On Tuesday a new employee, who finished company training but has not passed the state certification exam, applied a general-use granular herbicide to a customer's lawn while you were two towns away and out of cell coverage. The customer later reports yellowing shrubs along the property line and says a neighbor saw the employee filling the spreader near a storm drain. The customer asks whether the application was legal and requests your insurance information. Your company holds a commercial applicator business license; you are the only certified applicator on staff. The product is a general-use formulation, not restricted-use.
1. Was the application legal under New Hampshire rules? Identify every compliance problem you can see.
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No, not as performed. New Hampshire requires commercial applicator certification and a business license for anyone applying pesticides for hire, and that requirement is not limited to restricted-use products. A general-use label does not create an exemption for commercial work.
Key problems:
- The employee was not certified. A noncertified technician may apply only while working under the direct supervision of a certified applicator, after required training and with the employer's certification/license in place. Being two towns away and out of cell coverage is not direct supervision under any reasonable reading of the standard.
- The company's business license does not authorize an uncertified person to make independent applications.
- Filling a spreader near a storm drain creates a point-source risk. Even if the label does not expressly address storm drains, pesticide labels commonly prohibit leaving pesticide where it can enter surface water, and New Hampshire water-protection rules apply.
- Records and supervision documentation may be missing. The certified applicator remains responsible for the application.
The application should have been made by you or by the trained employee only with you physically present or immediately available as the state standard requires.
2. Outline your immediate response, including what you would document and report.
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Immediate response: stop further applications by the uncertified employee; secure the product and spreader; inspect the lawn, shrub line, and storm drain; photograph everything before cleanup; and contact the customer in writing. Do not promise a cause or a settlement before investigating.
Document: date, time, weather, wind, product name, EPA registration number, label rate, spreader setting, area treated, employee identity and training status, who supervised, and what was observed at the drain. Preserve the label, receipt, calibration record, and any spill kit use.
Report: notify your insurer and the New Hampshire Department of Agriculture, Markets and Food if the facts indicate a reportable spill, misapplication, or water contamination. Follow the label and state requirements for spill reporting. Keep records at least as long as the federal restricted-use record minimum and any longer New Hampshire retention period; use the stricter rule.
Corrective action: suspend the employee from pesticide handling until certified, retrain the crew on fill sites, and revise supervision so a certified applicator is present or immediately available.
3. The neighbor alleges drift. How do you investigate whether the yellowing shrubs came from your granular application?
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Separate drift from granule movement. A granular herbicide does not move like a spray cloud, so spray-drift assumptions may be wrong. Investigate:
- Pattern: injury concentrated along the spreader path, overlaps, or the storm-drain side suggests granules, overlap, or water movement rather than airborne drift.
- Timing: granular injury often appears after rain dissolves granules; ask when symptoms began relative to application and rainfall.
- Wind and application record: check wind speed and direction at the time. Granules can bounce or be thrown by a spreader, especially at high settings or on hard surfaces.
- Spreader calibration: an over-application or edge-throw pattern can injure shrubs without any off-site drift.
- Symptoms: compare leaf cupping, twisting, chlorosis, and margin burn with the product's known symptomology and with injury on nontarget plants downslope.
Collect tissue and soil samples if needed, interview the neighbor, and keep a chain-of-custody record. Do not admit liability; report factual findings to your insurer and, if required, the state.