By Sumner Brown Stormwater can be troublesome. Those drops of water add up, causing floods, overflowing sewers, and reduced water quality. Belmont is striving to remedy its stormwater problems, and we need to monitor the effects and measure the results. Water Flow in Alewife Brook Rain falls on the ground and finds its way into streams. We can measure the overflow from rainstorms by placing flow gauges where major streams leave Belmont, So far Belmont has only one such stream flow gauge, in Alewife Brook. The gauge is operated by the US Geologic Survey. It is shared with Arlington, Somerville [READ MORE]