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6 <br />6. If the probable result determination is negative, the expert will refer the <br />situation back to the County for renovation, repair, or replacement of the <br />well by the NFWRF. <br />REMEDIATION OF FAILURES <br />.Repair: <br />Well repairs can be implemented for those situation involving known or <br />discoverable flaws in the well construction. The repairs may involve the <br />installation of a liner or sleeve in the existing casing; raising the well head <br />above the finished grade; or deepening of the bore hole. The use of a well <br />repair strategy is usually limited, especially when the well is more thanl 5-20 <br />years old. <br />Treatment: <br />Treatment systems are indicated when they are the best solution for the well <br />failure. Treatment systems may be the only remediation available for some well <br />failure situations. Examples of treatment systems are whole-house filters, <br />point of use filters, softeners, reverse osmosis units and neutralizers. <br />Renovation: <br />Renovation is generally indicated when there are certain types of non- <br />pathogenic bacteria present in the well such as iron or sulfur bacteria. Over <br />time, these bacteria cause an increase in undesirable qualities in the water and <br />many times cause a slime to develop on the well walls or within the plumbing <br />system that exacerbates the problem. The renovation process removes the <br />slime and other buildup in the well and plumbing system through a chemical or <br />mechanical process and eliminates or reduces the levels of nuisance <br />constituents in the water. <br />Replacement: <br />Well replacement is .indicated when the existing well is failing according <br />definition established by this policy and the well cannot be renovated or <br />repaired. Any new well may need a new pump, wiring and water line in order to <br />be put into service which would be covered under the NFWRF. <br />