![]() ![]() All irrigation of outdoor areas is prohibited except for watering by hand.On August 8th, 2022 the Board of Selectmen unanimously approved town wide water restrictions as outlined below: MANDATORY WATER RESTRICTIONS IN EFFECT BEGINNING AUGUST 15TH Wild Harbor Road and all of the side streets off Wild Harbor Rd from Quaker Road to Point Road Streets to be flushed the week of April 24th through May 4th: This should remove any sediment from inside your service. After you have waited, run your cold water tap (without the aerator screen) for five to ten minutes. It is recommended you do not use the water or do laundry for two hours after noticing this discoloration. Should your water appear reddish, yellow or brown, do not be alarmed. While conducting flushing operations in your neighborhood, you may experience discolored water or a small drop in water pressure. Specific dates of streets and/or neighborhoods to be flushed will be provided on a weekly basis. Flushing activities will be conducted in the evening between the hours of 7:00 PM - 1:00 AM. Flushing is an essential maintenance function necessary to maintain water quality, improve the carrying capacity of pipes, and ensure the proper operation of distribution system components, such as hydrants and valves. Once all of the necessary measures are completed, the data will now determine what the current density of the water is and help further classify the water mass.Spring Hydrant flushing will begin Monday, March 27th. It can take many years to establish the standard deviations of the water mass and requires constant surveillance. To have a complete water mass classification, it requires the water type of the source and the standard deviations of the temperature and salinity. Throughout time climates can change, seasons can drag out, or there could be less rainfall meaning that the water masses might change in temperature or salinity. In the diagram pictured at the top, it categorises a water mass by the temperature and salinity of the water and is represented by a single point. ![]() The best method of classifying a water mass is through using a T-S diagram. Temperature and salinity diagram Temperature and salinity diagram Freshwater freezes at the standard 0☌ (32☏), while saltwater freezes at an average of -2☌ (28.4☏). The salinity of the water makes water freeze at lower temperatures than freshwater. This also in turn causes the salinity of the water to decrease. However, because water increases its volume by about 9% when frozen, this makes the ice less dense than the water which is why glaciers float. When ice is being formed in a cold climate like Antarctica, the cold temperatures separate the molecular bonds of the water causing it to become less dense. Water Masses are formed from regions of water having different temperatures.
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