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Well Upgrade Technical Report

Section 4 - Results

The following changes were observed upon completion of the well upgrades. Well CS-1 passed bacterial tests and was placed back into service. Well CS-9 no longer runs dry after a few hours pumping and now provides a reliable water supply source. Results observed at Well CS-9 are similar to those observed during the acidification of Well CS-10. Well CS-11 remains off line and repeatedly fails drinking water bacterial tests mandated by the state. Repeated heavy chlorination doses have been applied without success. The option remains to extend Well CS-11 surface casing to a greater depth to reduce possible surface-derived contamination; however, given the well�s history of repeated test failures, this option may incur further costs without benefit. Drilling another water well represents the most practical and cost effective alternative to increase water production capacity beyond that which currently exists. Wells CS-1, CS-9, and CS-10 are currently supplying CSSA with potable water. Table 4.1 summarizes well construction data and upgrade work performed, as they compare to the information available prior to upgrade.

Table 4.1 - September 1997 Well Construction Upgrade Data for Wells CS-1, CS-9, and CS-11

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