The purpose of the proposed project is to determine a location for one or two additional permanent wells to ensure a safe and reliable potable water supply for customers in the Fall River Valley Community Services District (FRVCSD). FRVCSD provides water to the residents and businesses in the communities of Fall River Mills and McArthur. Currently, FRVCSD maintains two wells, however, the District relies on a single well located in McArthur. The well is currently producing 370 gallons per minute (gpm). The secondary well, located in Fall River Mills, is unused due to low-quality water resulting from high levels of iron and manganese, and a low yield (120 gpm). In the case of mechanical failure or an emergency, the secondary well would be unable to provide adequate water to the district. FRVCSD has a current maximum water demand of 390 gpm, and often requires 24-hour pumping during summer months and fire events. While the estimated maximum daily demand is 94% of the existing storage volume, there is little room for error during the summer months.
The proposed project would include drilling up to two test wells to locate a secondary quality water source. Two potential test well sites have been identified by FRVCSD. Well site #3 is the preferred test well site and a test well will be drilled here first. If this site provides adequate water supply of at least 400 gpm, and satisfactory water quality, the test well will later be converted to a permanent well to provide a second source of water supply to FRVCSD. Well site #1B would not be needed in this case. However, if well site #3 does not provide adequate water supply, FRVCSD will construct another test well at well site #1B.