Table 18. Summary of sediment discharge measurements in Upper Paraguay river and tributaries.1 River/ Gaging Station No. of Maximum Mean Minimum Standard Tributary data Concentration Concentration Concentration Deviation points (ppm) 2 (ppm) 2 (ppm) 2 (ppm) 2   Paraguay    Cáceres     55         507         147          28         122   Cuiabá    Cuiabá     51          985         235         23         211   Piquiri   Estrada BR-163     60         1224         362         60         239   Taquari   Coxim     60         2504         845         198         557   Aquidauana   Aquidauana     63         1792         620         97         411   Miranda   Estrada MT-738     60         2650         626         112         551   Paraguay   Porto Esperança     52         897         176          12         183 1 Source: DNOS, DNAEE, and Hidrologia S. A., unpublished data. 2 At concentrations less than 5,000 ppm, 1 mg/liter is approximately equal to 1 ppm, i.e., 1 mg/liter is less than 1.01 ppm.