The mean annual flow for this same period was 58.5 gallons per second. The highest instantaneous
flow rates are usually in the winter. On 27 February 1979, for instance, the maximum instantaneous flow rate recorded was 3124 gallons per second.
Flow rates in water wells vary from a few gallons per minute up to the seventy-five gallons per minute in a well at the Lady’s Slipper Mushroom Plant in Lower Freetown. The groundwater chemistry is variable
but tends to be a calcium bicarbonate water as shown on the results of a sample collected from the home of Mrs. Ralph R. Burns.
Calcium 2 73.0 mg/l Manganese : less than 0.02 mg/l Magnesium = 2.35 mg/l Dissolved iron : less than 0.1 mg/l Sodium = 15.8 mg/l Extractable iron = less than 0.1 mg/l Potassium = 0.92 mg/l Phosphorous = 0.12 mg/l
Chloride = 23.0 mg/l Nitrates as N = 4.2 mg/l
Sulphate = 8.0 mg/l Zinc = 0.77 mg/l
Total Alkalinity = 147.0 mg/l Copper = 0.04 mg/l
Labratory pH = 7.8 mg/l Total Hardness = 183.0 mg/l
North Brook (back of Lewis’ farm).