Pair / Group
Distinguishing Feature
Control vs Contain vs Clean up
Control: stop the leak — put PPE on first, place small leaking containers into larger ones, plug drum leaks then transfer, turn off pump on pressurized systems, NEVER leave site unattended. Contain: keep spill from spreading — berm with shovel to keep out of drains/waterways. Clean up: sweep absorbents + contaminated items into drum; neutralize concrete/asphalt; excavate top 2-3 inches of contaminated soil.
Spill response: PPE first vs Action first
ALWAYS put on appropriate PPE BEFORE responding to a spill. The applicator's safety comes before any containment activity. Same rule applied to damaged container response in Ch.8.
Facility map vs Area map
Facility map: layout of all chemical storage buildings, bulk storage tanks, access roads, main shutoffs, perimeter fencing, fuel tanks, fire alarms/extinguishers, protective clothing, drainage ditches, wells, surface water flow. Area map: facility in relation to surrounding area. Both required, both updated when changes are made.
Spill on concrete vs Spill on soil
On concrete or asphalt: NEUTRALIZE the surface — follow SDS instructions or contact manufacturer. On soil: state/tribe/territory regulatory agency provides specific instructions; often EXCAVATE the top 2 to 3 INCHES of soil, remove, and replace with clean soil. Different surfaces, different procedures.
Berms (containment) vs Sumps (collection)
Berms: built up around spill site (with a SHOVEL or with pre-built materials) to keep contaminated runoff/spill OUT of drains and waterways. Used during spills + fires. Sumps: built INTO storage facility floor (sloped) to COLLECT spilled material in a contained low point. Both are containment infrastructure but used differently.
Pressurized system spill response
Always TURN OFF THE PUMP first. Continued pressure pushes more pesticide out. Standard control step before any containment activity for pressurized sprayers.
Surface water spill notification
If spill contaminates surface water: IMMEDIATELY contact state/tribe/territory regulatory agencies for streams/fisheries AND for pesticides. Authorities need time to alert downstream users (drinking water), prevent livestock poisoning, evacuate recreational users (swimming, fishing), avoid irrigated crop contamination. Don't delay.
Manufacturer vs 911 vs State agency calls
Manufacturer: emergency number on SDS — instructs on chemical-specific cleanup steps. 911: report the spill, summon emergency response. State/tribe/territory regulatory agency: required for surface water contamination. All three may be needed in a serious spill.
Emergency coordinator vs Onsite incident commander
Emergency coordinator: the company's designated "go-to" person — has authority to make decisions, coordinates with first responders, makes calls + fills reports. Onsite incident commander: the local emergency response leader once first responders arrive (fire department or other). FOLLOW the incident commander's instructions during fire/spill response.
Fire response: Evacuate vs Notify vs Fight
EVACUATE to designated rendezvous point FIRST (everyone accounted for). NOTIFY fire department. Provide responders with SDSs, labels, plan, site map. Follow incident commander instructions. CONSULT with responders about whether to ALLOW FIRE TO BURN OUT — sometimes the right call. Don't try to fight a pesticide fire alone.
Combustible pesticide storage
Store combustible pesticides AWAY from heating sources. Install fire-detection system. Train employees to use fire extinguisher. Pesticide products vary in flammability — refer to NFPA flammability rating + label + SDS.
Records during/after spill
Keep records of all activities + conversations with regulatory authorities, emergency responders, news media, and the public. PHOTOGRAPHS document related damage AND steps taken to clean up. Critical for regulatory compliance and liability protection.
NFPA hazard categories
Diamond with 4 sections: TOP = flammability (red); LEFT = health (blue); RIGHT = instability; BOTTOM = special hazards (white) — OX (oxidizer) or W (avoid use of water). Each rated 0 (minimal) to 4 (severe). Used by emergency responders to quickly assess hazards.
NFPA scale 4 vs 0
4: severe hazard — flammability: flammable gases, volatile liquids, pyrophoric materials; health: severe; instability: capable of detonation/explosive decomposition at ambient temperatures. 0: minimal hazard — flammability: will not burn; health: minimal; instability: normally stable.
Spill prevention vs Spill response
Prevention: maintain application equipment + transport vehicles (cracked hoses, loose hose clamps); defensive driving; no cellphone while driving. Response: 3 C's procedure with PPE first. Spill kit available in every transport vehicle + storage/mixing/loading site.