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We have a
well-defined site (domain in R2).
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Soil samples
have been obtained and analyzed for one
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compound. The results are {z1,
…, zn} and each result zi
has
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a known
location xi.
WLG, suppose z1 ³ … ³ zn.
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A
concentration threshold C has been selected (usually by
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a regulatory
agency).
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Another
concentration threshold T will be selected (in a way
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to be
described).
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Soils
surrounding each location xi where zi
> T will be
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“remediated.” For simplicity suppose this means the
true
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concentration
in those soils will become 0. (A
nonzero
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value will not
change our results.)
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