DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

Parameter
Table 3.10 (continued)
Project
quantitation level
Screening
level
Annual Site Environmental Report
Reference
standard
Units
Styrene 2 75 100 µg/L
Tetrachloroethene 2 25 33 µg/L
Toluene 2 75 100 µg/L
Trans-1,2-Dichloroethene 2 75 100 µg/L
Trans-1,3-Dichloropropene 2 75 100 µg/L
Trichloroethene 2 75 100 µg/L
Vinyl chloride 2 18 24 µg/L
Xylenes (dimethyl benzene) 2 75 100 µg/L
Polychlorinated biphenyls (PCBs)
PCBs 0.5 detectable 0.00064 µg/L
Aluminum
Metals
100 NA NA µg/L
Antimony 100 480 640 µg/L
Arsenic 6 7 10 µg/L
Barium 100 NA NA µg/L
Beryllium 5 75 100 µg/L
Boron 100 NA NA µg/L
Cadmium 1 Detectable 0.25 µg/L
Calcium 100 NA NA µg/L
Chromium, total 25 75 100 µg/L
Chromium, VI 5 8 11 µg/L
Cobalt 100 NA NA µg/L
Copper 3 6.8 9.0 µg/L
Iron 100 NA NA µg/L
Lead 2 2 2.5 µg/L
Lithium 5 75 100 µg/L
Magnesium 100 NA NA µg/L
Manganese 100 NA NA µg/L
Mercury 0.1 Detectable 0.051 µg/L
Nickel 5 39 52 µg/L
Potassium 100 NA NA µg/L
Selenium 2 3.8 5 µg/L
Silver 1 2.4 3.2 µg/L
Sodium 100 NA NA µg/L
Thallium 5 Detectable 0.47 µg/L
Vanadium 100 NA NA µg/L
Zinc 2 90 120 µg/L
Dissolved oxygen (minimum)
Field readings
4.0–8.0 8.4 9.0 Standard units
pH (minimum) 1.0 27 NA
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C
a
Quantitation is defined as the lowest amount of analyte in a sample that can be quantitatively
determined with suitable precision and accuracy.
Exceedances of screening levels indicate potential areas of concern. Screening levels are used to
identify discharges that may require further investigation. If a screening level is exceeded, an
investigation is undertaken by EC&P personnel to determine the cause of the exceedance. Personnel from
the EC&P Organization will observe the storm water outfall(s) where the screening levels were exceeded
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