49 



Table 3-2a 



Metals Results for WLIS Samples as Compared to 1991 Reference Stations 



Metal (ppm) 



EAST Reference Station 



WL1S-REF 



SOUTH Reference Station 



2000S 



2000W 



1 



2 



3 



Mean 



(1991) 



1 



2 



3 



Mean 



(1991) 



(1991) 



Aluminum 



26000 



31000 



21000 



26000 



n.a. 



27000 



21000 



22000 



23333 



n.a. 



n.a. 



Arsenic 



8.7 



10 



6.4 



8.4 



n.a. 



6.9 



5.6 



5.3 



5.9 



n.a. 



n.a. 



Cadmium 



<1.1 



<1.3 



<.58 



* 



0.36 



<0.69 



<0.66 



<0.50 



* 



0.53 



0.31 



Chromium 



85 



96 



56 



79 



n.a. 



72 



59 



57 



63 



n.a. 



n.a. 



Copper 



89 



93 



63 



82 



n.a. 



71 



65 



50 



62 



n.a. 



n.a. 



Iron 



33000 



39000 



25000 



32333 



n.a. 



31000 



27000 



24000 



27333 



n.a. 



n.a. 



Lead 



50 



63 



36 



50 



54 



50 



42 



39 



44 



70 



62 



Mercury 



0.39 



0.36 



0.31 



0.35 



n.a. 



0.26 



0.26 



0.19 



0.24 



n.a. 



n.a. 



Nickel 



30 



33 



21 



28 



n.a. 



29 



25 



21 



25 



n.a. 



n.a. 



Zinc 



200 



230 



150 



193 



123 



180 



180 



140 



167 



138 



150 



Values below the instrument detection limit (IDL) are shown as less than ( < ) the IDL. 

 * = Mean not calculated because of values below detection, 

 n.a. = Not Analyzed. 



Table 3-2b 



Aluminum Normalized Metals Results for WLIS Samples 



Metal 



EAST Reference Station 





SOUTH Reference Station 



1 2 3 



Mean 





1 2 3 



Mean 



Arsenic 



3.35E-04 3.23E-04 3.05E-O4 



3.21E-04 





2.56E-04 2.67E-04 2.41E-04 



2.54E-04 



Cadmium 



4.23E-05 4.19E-05 2.76E-05 



* 





2.56E-05 3.14E-05 2.27E-05 



* 



Chromm 



3.27E-03 3.10E-O3 2.67E-03 



3.01E-03 





2.67E-03 2.81E-03 2.59E-03 



2.69E-03 



Copper 



3.42E-03 3.00E-03 3.O0E-O3 



3.14E-03 





2.63E-03 3.10E-03 2.27E-03 



2.67E-03 



Lead 



1.92E-03 2.03E-O3 1.71E-03 



1.89E-03 





1.85E-03 2.00E-03 1.77E-03 



1.87E-03 



Mercury 



1.50E-O5 1.16E-05 1.48E-05 



1.38E-05 





9.63E-06 1.24E-05 8.64E-06 



1.02E-O5 



Nickel 



1.15E-03 1.06E-03 1.00E-03 



1.O7E-03 





1.07E-03 1.19E-03 9.55E-04 



1.07E-03 



Zinc 



7.69E-03 7.42E-03 7.14E-03 



7.42E-03 





6.67E-03 8.57E-03 6.36E-03 



7.20E-03 



Values below the instrument detection limit (DDL) are shown as less than ( < ) the IDL. 

 * = Mean not calculated because of values below detection. 



Table 3-2c 



Iron Normalized Metals Results for WLIS Samples 



Metal 



EAST Reference Station 





SOUTH Reference Station 



1 2 3 



Mean 





1 2 3 



Mean 



Arsenic 



2.64E-04 2.56E-04 2.56E-04 



2.59E-04 





2.23E-04 2.07E-04 2.21E-04 



2.17E-04 



Cadmium 



3.33E-05 3.33E-05 2.32E-05 



* 





2.23E-05 2.44E-05 2.08E-05 



* 



Chromiu 



2.58E-03 2.46E-03 2.24E-03 



2.43E-03 





2.32E-03 2.19E-03 2.38E-03 



2.29E-03 



Copper 



2.70E-03 2.38E-03 2.52E-03 



2.53E-03 





2.29E-03 2.41E-03 2.08E-O3 



2.26E-03 



Lead 



1.52E-03 1.62E-03 1.44E-03 



1.52E-03 





1.61E-03 1.56E-03 1.63E-03 



1.60E-03 



Mercury 



1.18E-05 9.23E-06 1.24E-05 



1.11E-05 





8.39E-06 9.63E-06 7.92E-06 



8.64E-06 



Nickel 



9.09E-04 8.46E-04 8.40E-04 



8.65E-04 





9.35E-04 9.26E-04 8.75E-04 



9.12E-04 



Zinc 



6.06E-03 5.90E-03 6.O0E-O3 



5.99E-03 





5.81E-03 6.67E-03 5.83E-03 



6.10E-03 



Values below the instrument detection limit (IDL) are shown as less than ( < ) the IDL. 

 * = Mean not calculated because of values below detection. 



Monitoring Cruise at the Western Long Island Sound Disposal Site, July 1992 



