Split Samples. An industry and a municipal wastewater treatment plant disagreed about wastewater concentrations of total Kjeldahl nitrogen (TKN) and total suspended solids (TSS). Specimens were split and analyzed by both labs, and also by a commercial lab. The results are below. Give your interpretation of the situation. Specimen 1 2 3 4 5 6 7 Muni. 1109 1160 1200 1180 1160 1180 1130 TKN Ind. 940 800 800 960 1200 1200 900 Comm. Muni. 1500 1850 1215 2570 1215 2080 1155 2380 1120 2730 3000 2070 1120 1140 TSS Ind. 1600 2100 2100 1600 2100 2700 1800 Comm. 1600 1400 1400 1750 2800 2700 2000
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