Wells included in the basic data collection network are selected to represent regional coverage and various ground-water conditions and are usually operated for long periods of time. Obtain as much information as possible from the owner about possible hazards. If the site will be visited regularly, make notes on potential dangers so that subsequent field personnel will be forewarned. Minimize disturbing livestock and fowl. Stay on roads or trails with vehicles to avoid damage to vehicles, pastures, crops, etc.
Catalytic converters can start grass fires.
Be careful of wells with pumps in operation and avoid contact with moving parts and electrical wiring. Carry a clipboard as protection from small hostile animals and for keeping data while at the field site. Carry a large crescent wrench or walking stick to ward off larger hostile animals. Survey the site watching for snakes, animals, insects, water, and other hazards. List all the hazards on a hazard elimination log.