Table 1.

Average pH, conductivity and TSS (+/− standard deviation) collected from upstream, influent, effluent, and downstream samples from three wastewater treatment plants during the summer and winter seasons (n=2* or 3).

		Plant A		Plant B		Plant C
		Summer	Winter	Summer	Winter	Summer	Winter
pH	Upstream	7.55 ± 0.11	7.63 ± 0.06	7.40 ± 0.40	7.61 ± 0.22	7.45 ± 0.05	7.7 ± 0.3
	Downstream	7.84 ± 0.07	7.77 ± 0.34	7.65 ± 0.18	7.63 ± 0.34	7.49 ± 0.27	7.38 ± 0.54
Conductivity (mS/cm)	Upstream	249 ± 397	6.63 ± 9.49	278 ± 454	11.3 ± 10.6	3.36 ± 4.23	0.54 ± 0.49
	Downstream	341 ± 529	28.4 ± 13.4	367 ± 580	25.7 ± 9.36	2.50 ± 3.55	1.43 ± 599
TSS (mg/L)	Upstream	74.9 ± 32.9	58.7 ± 35	75.8 ± 28.5	90.7 ± 63.9	5.00 ± 1.67	21.7 ± 26.4
	Influent	95.5 ± 33.1	211 ± 93	252 ± 19	262 ± 76	276 ± 58	244 ± 32
	Effluent	20.6 ± 4.1	20.0 ± 12.2	8.33 ± 7.07	14.3 ± 3.5	3.33 ± 5.77	10.1 ± 10.5
	Downstream	118 ± 108	179 ± 192	499 ± 488	223 ± 300	6.67 ± 7.64	56.3 ± 77.3