Applications of Environmental Aquatic Chemistry, 3rd Edition

333Chapter 7: General Properties of NAPLs and Behavior of LNAPLs

Figure 7.17a and b shows SDC and CNDCs for a soil sample collected from a

free product seep adjacent to the foundation of Mr. A’s home. Not only is the SDC

for the foundation seep sample very similar to the SDC for the UST sample, but

also its CNDC contains the two distinctive peaks at C11 and C13 that were also

seen in the UST sample.

Mr. B acknowledged that these data strongly implicated his UST as the source

of contamination at Mr. A’s home, even if it did not explain why the leak appeared

to be erratic. When his tank was leak tested, it was found that the filler pipe had

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