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System Update Notice

 

   Rye Water District

60 Sagamore Road

PO Box 156

Rye, NH 03870-0156

(603)436-2596

 

 

 

December 30, 2022

 

As many of you are aware, the District has been chlorinating full-time since October of this year. Chlorine will interact with sediment that is commonly present in the source water and pipes of most water systems. The chlorine is basically breaking apart any built-up formations of sediment that have accumulated over the years that have not been removed by normal routine flushing of mains. This is a normal reaction when chlorine is added to a water system. Some areas in the system may experience occasional discolored water from higher water flows than usual in addition to the chlorine reaction.

 

On December 27, 2022, the District staff performed localized flushing in the areas close to our wells and points of chlorine introduction because of high iron fall-out. The procedure was very successful in removing the sediment and clearing the piping for better water esthetics and quality. For more information about these issues, please see: DWGB-3-8: Iron and/or Manganese in Drinking Water

 https://www.des.nh.gov/sites/g/files/ehbemt341/files/documents/2020-01/dwgb-3-8.pdf

 

System-wide flushing to reduce sediment accumulation will be performed in April and October of 2023.  Flushing of smaller areas may be repeated as needed, and weather allows.

 

Several water samples were collected throughout the distribution system and tested for metals commonly found in tuberculated water mains. Slightly elevated levels of iron were noted in most of the samples. One sample had a lead concentration above the maximum contaminant level (MCL). The elevated result is believed to be an error in the sampling procedure, and the test will be repeated in the near future.

 

We will continue to update you as we gather more information.