This report presents all data on arsenic, nitrate, iron, and hardness in well water in the Chena Hot Springs Road, Steele Creek Road, and Gilmore Trail area of Fairbanks, Alaska, collected through October 1981. Concentrations range as follows: arsenic - 0 to 5,100 micrograms per liter; nitrate - 0 to 53 milligrams per liter; iron - 0 to 50 milligrams per liter, and hardness - 12 to 1,000 milligrams per liter. The percentage of samples exceeding limits set by the U.S. Environmental Protection Agency are as follows: arsenic - 13%; nitrate - 14%, and iron - 80%. (USGS)