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Appendix III. Colorado River Water Data 1998-2000 ~ Environmental conditions of the Colorado River in Westwater Canyon for 1998-2000 are presented in the following tables and figures: Mean daily discharge (cfs), mean daily temperature (°C) and suspended sediment (mg/1) were recorded at USGS gage #09163500 (Colorado River near Colorado-Utah State Line; above Westwater Canyon). In the absence of that data daily instantaneous temperature (°C) values and suspended sediment (mg/1) data are reported as recorded ~ at USGS gage #09180500 (Colorado River near Cisco; below Westwater Canyon). Additional environmental parameters for the period of record as recorded at both gages are reported in Herbert et al. (1999, 2000, 2001, 2002). Appendix III Table 1. Mean daily discharge (cfs) of Colorado River near. Colorado-Utah state line ~ (USGS gage #09163500) for Fall 1998. Westwater Canyon humpback chub sampling dates are in bold. ~: i Date Dischar a Date Dischar e 9/1/1998 3660 10/1/1998 4120 9/2/1998 3820 10/2/1998 4210 9/3/1998 4020 10/3/1998 4540 914/1998 3990 10/4/1998 4680 9/5/ 1998 3 800 10/5/ 1998 5060 9/6/1998 3720 10/6/1998 5180 9/7/1998 3760 10/7/ 1998 5090 9/8/1998 3670 10/8/1998 4920 9/9/1998 3600 10/9/1998 4760 9/10/1998 3550 10/10/1998 4780 9/11/1998 3670 10/11/1998 4740 9/12/1998 4310 10/12/1998 4670 9/13/1998 5500 10/13/1998 4640 9/14/1998 5200 10/14/1998 4590 9/15/1998 5090 10/15/1998 4560 9/16/1998 4930 10/16/1998 4470 9/17/1998 4880 10/17/1998 4620 9/ 18/ 1998 4800 10/ i 8/ 1998 4660 9/19/1998 4710 10/19/1998 4750 9/20/ 1998 4550 10/20/1998 4730 9/21/199$ 4430 10/21/1998 4700 9/22/1998 4360 10/22/1998 4770 9/23/1998 4400 10/23/1998 4860 9/24/ 1998 4450 10/24/1998 4970 9/25/1998 4260 10/25/1998 4840 9/26/1998 4190 10/26/1998 5350 9/27/ 1998 4080 10/27/ 1998 5 500 9/28/1998 4020 10/28/1998 5920 9/29/1998 3990 10/29/1998 5740 9/30/1998 4040 10/30/1998 5360 -- -- 10/31 / 1998 5400 31