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 Regulations of Connecticut State Agencies (Last Updated: June 14,2023)
 Title25 Water Resources, Flood and Erosion Control
 SubTitle25-128-1_25-128-64. Description of Organization, Rules of Practice, and Regulations for the Well Drilling Industry

  Sec.25-128-47. Gravel packed wells, gravel  

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  • (a) The gravel in a gravel packed well shall be composed of material that does not react chemically with the water in the well, and will not create or enhance encrustation or corrosion.

    (b) The gravel shall be clean, rounded, uniform, water-washed, and free from clay, silt, or other deleterious substance.

    (c) The size of the gravel shall be as determined by a grain size analysis of the formation material.

    (d) The gravel shall be disinfected by adding sufficient chlorine to the placement fluid to produce a chlorine residual of approximately one hundred parts per million (100 ppm).

    (e) The gravel shall be placed in such a manner that no bridging or layering occurs.

    (f) The gravel pack shall not connect aquifers or zones which have differences in water quality classification or in static water levels.

(Effective May 21, 1993)