Figure 4. Travel time zones for both the Bingham Water District Well and the Bingham Fish Hatchery Wells are shown on this map. The zones are divided into an area of less than 200 days travel time to the well, and an area of less than 2,500 days travel time to the well. The 200-day zone was selected based on survival of virus and other infectious agents in ground water. Generally, disposal of human or animal wastes (septic systems) should be avoided within this zone. The 2,500-day zone represents the time it has historically taken to respond effectively to leaks and spills of hazardous chemicals. Storage and large-scale use of such chemicals should be avoided within this zone, unless the uses are very carefully managed.

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Last updated on October 6, 2005

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