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ectrum Laboratories : Chemical Fact Sheet-('- #75694 h"-//www.specl,ab <br /> com/wmpound/c75694.htm <br /> DRINKING WATER:Detected,not quantified. GROUND WATER:Cluster wells at <br /> manufacturing research facility in the Northeastern US: glacial shallow wells 80 ppb mean,median <br /> not detectable;glacial deep wells 5 ppb mean,4 ppb median;bedrock wells 650 ppb mean,23 ppb <br /> median. SURFACE WATER:Ohio River Basin(11 stations,4972 samples)-5.3%of samples 0.1 <br /> ppb including 46 samples between 1 and 10 ppb and 3 > 10 ppb. 14 Heavily industrialized river <br /> basins in US(204 sites)- 11 sites positive all in the Chicago area and Illinois River Basin 3-20 ppb <br /> Lake Erie central and eastern basins-34 and 46 parts/trillion average in 1977 and 1978, <br /> respectively,with concentration uniform throughout the basin .Delaware River Basin.(30 sites, <br /> depth integrating samples)-3%of sites had values> I ppb.Lake Michigan(9 sites)-5 sites <br /> Drinking Water positive, 1-20 ppb . SEAWATER:Pacific Ocean 0.13 parts/trillion average at surface.0.06 <br /> parts/trillion average at 300 m depth Point Reyes,CA nearshore 43 parts/trillion. <br /> rImpact Trichlorofluoromethane is most abundant in the surface layers of the sea as opposed to the depths <br /> L: as was demonstrated in concentration profiles of the Greenland and Norwegian Seas.EFFL: <br /> Industries whose raw or treated wastewater exceed an average of 10 ug/l include: auto and other <br /> laundries,electrical components,nonferrous metal manufacturing,coal mining,photographic <br /> equipment/supplies and textile mills.Maximum levels at or above 100 ppb occurred in textile mills <br /> (2 100 ppb)auto and other laundries(120,ppb), and nonferrous metal manufacturing(100 ppb). <br /> Industrial effluents(343 sites representing all STORET stations) 0.6%positive,median<5 ppb. <br /> rNational Urban Runoff Program(Nineteen cities including 11 of the 18 river basins in the <br /> F•� contiguous USA-86 samples)-6%frequency of detection,0.6-27 ppb.Los Angeles municipal <br /> wastewater<0.3 ppb . <br /> k.� DISCLAIMER-Please Read <br /> Return to <br /> Alphabetical List of Compounds <br /> p p <br /> �•+ List of Compounds by CAS Number <br /> List of Services <br /> E� Spectrum Laboratories Homepage <br /> L <br /> of 3 1/5/99 3:28 PM <br />