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Asking for about six weeks. >> reporter: so we decided to get it tested with the help of the scientists from the university of west florida. getting a good average requires taking samples in different spots, at different depths. all right. let's take her back to the lab. there, dr. fred heilman uses a solution to extract the sand, concentrate it and analyze it as a liquid. >> you can just take a look at these samples and you can begin to see the difference in there as far as the oil content. >> it's plain as day. >> yeah. >> clear water, clear sand. dirty water, dirty sand. >> or contaminated....

Here is what the scientists there had to say. >> 2.6 parts per million of oil in that sand sample that was given to us. >> 2.6 parts per million. that number, what does it mean to people watching at home? >> a, it says the oil is there. b, the oil is there at low levels. >> healthy or safe levels? >> not necessarily hazardous levels. >> reporter: that certainly is somewhat optimistic at least a scientist agreed that is a relatively low level. we took a pretty sporadic sample. there are areas of this beach that certainly have higher concentrations. just walking up and down the beach today we sa...

To see the difference in there as far as the oil content. >> it's plain as day. >> yeah. >> clear water, clear sand. dirty water, dirty sand. >> or contaminated. >> reporter: further analyst puts an exact number on that contamination. >> 2.6 parts per million of oil in that sand sample that was given to us. >> 2.6 parts per million. that number, what does it mean to people watching at home? >> a, it says the oil is there. b, the oil is there at low levels. >> possibly healthy or safe levels? >> not necessarily hazardous levels. >> reporter: those scientists, it is not their job to tell you to ...

Samples, and you can begin to see the difference in them as far as the oil content. >> reporter: it's plain as day. clear water, clear sand. dirty water, dirty sand. >> or contaminated. >> reporter: further analysis puts an exact number on the contamination. >> 2 the 6 parts pr million of oil in the sand sample. >> reporter: 2.6 parts per million. what does it mean to people watching at home? >> a, it says the oil is there. b, the oil is there at low levels. >> reporter: possibly healthy or safe levels? >> not necessarily hazardous levels. >> reporter: several calls into escambia county enviro...