Ethoprop is a toxic pesticide used on crops that can contaminate water through agricultural runoff. It harms the nervous system and is dangerous to aquatic life.

Ethoprop is an organophosphate pesticide primarily used on potatoes and tobacco. It can enter drinking water sources through agricultural runoff and soil leaching. The EPA measures ethoprop in parts per billion (ppb) and has established maximum contaminant level goals to protect public health. While highly toxic to aquatic life, the long-term health effects on humans from chronic low-level exposure are still being studied. Water treatment facilities use activated carbon filtration to remove ethoprop from drinking water.