This sample is associated with a spiked sample result that was above the high calibrant. The spike recovery was calculated using an extrapolated value.
This sample is associated with a spiked sample result that was above the high calibrant. The spike recovery was calculated using an extrapolated value.
Analytical procedure error. Initial sample aliquot (100ml) did not completely filter within the 10 minutes allowed by the method. A new filter was used and a smaller aliquot of sample was poured off and analyzed as a retest.