Bellgrove Creek Update to the Coeur d’Alene Lake Tributaries WAG Oct 5 th 2011
Fighting Creek (aka Bellgrove Creek) • Drains a 6.1 mile 2 watershed on the southwest side of Coeur d’Alene Lake • Part of the watershed is within Coeur d’Alene Tribal boundaries • Currently listed on Idaho’s 2008 Integrated Report as impaired for E. coli due to violations of Water Quality Standards in 2005 and 2007 • In 2008 BURP scores conclude beneficial uses are not supported
E. Coli enumeration results on Bellgrove Creek, 2005 & 2007 *Location Date CFU Date CFU Date CFU Date CFU Date CFU Date CFU Geo- mean Above elk facility 5/10/2007 40 5/15/2007 19 5/18/2007 54 5/22/2007 88 5/25/2007 120 5/29/2007 61 53 (but below 95 bridge) -- -- Downstream elk 6/15/2005 3100 6/29/2005 13800 7/6/2005 5900 7/12/2005 8400 7/26/2005 1800 5204 facility -- -- 1/3 mile -- -- 6/29/2005 4200 7/6/2005 320 7/12/2005 390 7/26/2005 1900 999 downstream elk facility ¾ mile below elk 5/10/2007 1600 5/15/2007 400 5/18/2007 250 5/22/2007 930 5/25/2007 450 5/29/2007 450 923 facility Fighting Creek 5/10/2007 97 5/15/2007 230 5/18/2007 80 5/22/2007 300 5/25/2007 6 5/29/2007 70 80 0.2 miles below conf. of Bellgrove • Idaho’s Water Quality Standard for primary contact recreation is 406 E. coli organisms per 100 ml. • Four samples are taken no more than a week apart over thirty days to calculate a geometric mean . Idaho’s Water Quality Standard for a geometric mean of 126 E. coli organisms per 100 ml.
University of Idaho E. Coli enumeration results on Bellgrove Creek, 2011 *Location Date CFU Date CFU Date CFU Date CFU Date CFU Geo- mean Above elk facility (but below 95 5/16/2011 649 5/23/2011 18 5/31/2011 34 6/6/2011 135 6/13/2011 121 92 bridge) Downstream elk facility 5/16/2011 2420 5/23/2011 142 5/31/2011 727 6/6/2011 2419 6/13/2011 1986 1037 1/3 mile downstream elk facility -- -- 5/23/2011 816 5/31/2011 48 6/6/2011 162 6/13/2011 167 172 Fighting Creek 0.2 miles below conf. -- -- 5/23/2011 920 5/31/2011 111 6/6/2011 46 6/13/2011 113 100 of Bellgrove • Idaho’s Water Quality Standard for primary contact recreation is 406 E. coli organisms per 100 ml. • Four samples are taken no more than a week apart over thirty days to calculate a geometric mean . Idaho’s Water Quality Standard for a geometric mean of 126 E. coli organisms per 100 ml.
Bellgrove Creek: 2009 Monitoring Results 2.00 Total Phosphorus (TP) 300 1.90 Total Nitrogen (TN) 285 1.80 270 Dissolved Ortho-Phosphorus (Ortho-P) 1.70 255 Total Suspended Solids (TSS) 1.60 240 1.50 225 1.40 210 1.30 TP, TN, Ortho-P (mg/L) 195 1.20 180 TSS (mg/L) 1.10 165 1.00 150 0.90 135 0.80 120 0.70 105 0.60 90 0.50 75 0.40 60 0.30 45 0.20 30 0.10 15 0.00 0 August 7 2008 February 24 2009 *Mar 4 2009 April 9 2009 April 13 2009 June 4, 2009 *TSS and TN data outside DQO Date
Beauty Creek: 2009 Monitoring Results 0.700 70.0 Total Phosphorus (TP) 0.650 65.0 Total Nitrogen (TN) Dissolved Ortho-Phosphorus (Ortho-P) 0.600 60.0 Total Suspended Solids (TSS) 0.550 55.0 0.500 50.0 TP, TN, Ortho-P (mg/L) 0.450 45.0 0.400 40.0 TSS (mg/L) 0.350 35.0 0.300 30.0 0.250 25.0 0.200 20.0 0.150 15.0 0.100 10.0 0.050 5.0 0.000 0.0 Febrary 24, 2009 March 3, 2009 April 9, 2009 April 20, 2009 May 11, 2009 Date
0.700 70 Total Phosphorus (TP) 0.650 65 Total Nitrogen (TN) Dissolved Ortho-P (Ortho-P) 0.600 60 Total Suspended Solids (TSS) 0.550 55 0.500 50 TP, TN, Orhto-P (mg/L) 0.450 45 0.400 40 TSS (mg/L) 0.350 35 0.300 30 0.250 25 0.200 20 0.150 15 0.100 10 0.050 5 0.000 0 February 24, 2009 March 4, 2009 March 24, 2009 April 9, 2009 May 4, 2009 Date
2009 Monitoring Results 2.00 Total Phosphorus (TP) 300 1.90 285 Total Nitrogen (TN) 1.80 270 Dissolved Ortho-Phosphorus (Ortho-P) 1.70 255 Total Suspended Solids (TSS) 1.60 240 1.50 225 1.40 210 Bellgrove 1.30 TP, TN, Ortho-P (mg/L) 195 1.20 180 TSS (mg/L) 1.10 Creek 165 1.00 150 0.90 135 0.80 120 0.70 105 0.60 90 0.50 75 0.40 60 0.30 45 0.20 30 0.10 15 0.00 0 August 7 2008 February 24 2009 *Mar 4 2009 April 9 2009 April 13 2009 June 4, 2009 *TSS and TN data outside DQO Date Stinson Creek Beauty Creek
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