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Sioux Falls Restores Four Wells With Collector Pipe
Author(s) -
Moberly Doug
Publication year - 1976
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1976.tb00858.x
Subject(s) - engineering , wastewater , clean water , environmental science , waste management , civil engineering
This article was presented as a paper at the 41st Annual Meeting of the South Dakota Water and Wastewater Association, September 1975. The Sioux Falls Water Department was faced with a problem: how to rejuvenate four Raney horizontal collector wells constructed in 1957 that had declined in production to as little as 60 percent of their original capacity of 1400gpm. An informal proposal from a well‐cleaning contractor revealed that it would cost approximately $17,000 to mechanically clean one 50‐ft deep well with 480 ft of 8‐in. slotted horizontal collector pipe. Needless to say the price was hardly attractive especially since the water department owned six such wells. (Two more were under construction.) This article discusses the alternative restoration method that they chose, including the outcome of the project.