WATER AND RESOURCE CONSERVATION 308 Nelson Avenue, Oroville, CA 95965 Telephone: (530) 538-4343 Fax: (530) 538-3807 www.buttecounty.net/waterandresource bcwater@buttecounty.net Paul Gosselin, Director Butte County Drought Task Force December 1, 2016 10:00 AM noon 202 Mira Loma Drive, Tahoe Room Oroville, CA Agenda 1. Introductions/Meeting Goals Paul Gosselin, DWRC 2. Summary of Current Conditions a. Water Resources i. * Update on Hydrologic Conditions Paul Gosselin, DWRC ii. Water Supply Conditions Vickie Newlin, DWRC b. * Well Permit Activity - Brad Banner, Environmental Health c. Agricultural Impacts Louie Mendoza, Agriculture d. Fire Conditions Darren Read, Fire 3. Update on State Drought Actions Cindi Dunsmoor 4. Other Drought Reports and Impacts - All 5. Discussion and Potential Recommendation to the Butte County Board of Supervisors Paul Gosselin 6. Public wishing to address the Drought Task Force on issues not listed on the agenda. 7. Next Meeting TBD *Materials attached
Hydrologic Conditions Update December 2016 Paul Gosselin Drought Task Force December 1, 2016 1
Water Year 2016 Oct. 1, 2015 - Sept. 30, 2016 Water Year Classification Sacramento Valley Below Average Statewide Dry Water Year 2014 & 2015 Critical; 2012 and 2013 both Dry From DWR May 1 Update 2
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Current Regional Snowpack from Automated Snow Sensors- May 23, 2016 4
Snow Water Content- Northern Section Percent of April 1 Average 5
Reservoir Storage 6
WY 1983 WY 2016 WY 2017 WY 1977 7
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Fall Groundwater Elevation Overview Fall 2015 to 2016 Groundwater Elevation Change October 2015 to October 2016 Well Count Change (ft) SIU 118 Average GWL Change 3 Median GWL Change 2.7 107 Average Increase 4 Median Increase 1.1 Max Increase 28 Butte Sink 7 Average Decrease -1 Median Decrease -2.8 Max Decrease -5 Durham Dayton 9
Biggs/West Gridley Richvale Western Canal Butte Llano Seco Angel Slough Butte Sink Thermalito M & T Vina Cherokee North Yuba Esquon Durham/Dayton Pentz Chico Urban Area Depth to Water Fall 2016 Depth to Water 180 160 140 120 100 80 60 40 20 0 Average DTW Min DTW Max DTW 6 3 12 11 14 18 13 27 28 41 41 46 53 67 77 96-20 Fall 2016 minimum, median, and maximum Depth to Water (DTW, feet) in each sub-region with median DTW labeled 10
Esquon Pentz Richvale Butte Sink Durham/Dayton Biggs/West Gridley Western Canal Cherokee Butte Llano Seco Vina Angel Slough Thermalito M & T Chico Urban Area North Yuba Groundwater Level Change, 2015-2016 30 25 20 15 10 5 0-5 -10 Average Change in WSE Lowerbound of Range Upperbound of Range Note: + value indicates increased WSE, - value indicates decreased WSE 4.7 2.7 3.9 12.1 4.3 3.4 2.8 2.6 5.2 1.8 2.7 0.7 1.0 2.0 2.3 1.1 Minimum, median, and maximum Fall 2015 to Fall 2016 change in Water Surface Elevation (WSE) in each sub-region with median change labeled. 11
Esquon Pentz Richvale Butte Sink Durham/Dayton Biggs/West Gridley Western Canal Cherokee Butte Llano Seco Vina Angel Slough Thermalito M & T Chico Urban Area North Yuba Groundwater Level Change, 2008-2016 15 10 5 0-5 -10-15 2008 2016 2015 2016 2.5 3.5 3.1 1.4 4.7 2.7 3.9 12.1 4.3 3.4 2.8 2.6 5.2 1.8 2.7 0.7 1.0 2.0 2.3 1.1-10.4-0.6-9.3-1.2-7.6-0.9-1.2-4.0-2.4-0.1-5.3-3.3 Minimum, median, and maximum Fall 2008 to Fall 2016 and Fall 2015 to Fall 2016 change in Water Surface Elevation (WSE) in each sub-region with median change labeled. 12
BMO Alert Stage Frequency Spring: March 2008 2009 2010 2011 2012 2013 2014 2015 2016 Alert 1 26 31 25 24 25 20 24 21 16 Alert 2 0 6 3 0 4 15 21 25 26 Total 26 37 28 24 29 35 45 46 42 Fall: October 2008 2009 2010 2011 2012 2013 2014 2015 2016 Alert 1 27 29 24 7 26 23 21 16 21 Alert 2 2 1 2 2 6 16 19 25 19 Total 29 30 26 9 32 39 40 41 40 13
U.S. Seasonal Drought Outlook Drought Tendency During October 20, 2016 January 31, 2017 14
Questions/Discussion 15
Small Diameter Wells - Permit Applications, Monthly Totals Water Year Calendar Year A Calendar Year B Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total 2006-W 34 13 18 17 21 21 16 19 36 19 26 20 260 2007-D 24 14 8 16 14 20 28 19 25 20 22 18 228 2008-C 16 15 10 8 7 15 19 17 15 20 22 12 176 2009-D 17 10 8 13 10 11 21 17 23 23 20 15 188 2010-BN 9 9 8 2 4 14 22 10 22 18 14 8 140 2011-W 7 2 1 2 4 6 4 14 16 5 11 5 77 2012-BN 8 2 4 10 8 6 11 18 9 16 6 4 102 2013-D 9 10 2 11 22 27 35 36 19 17 24 9 221 2014-C 9 10 10 24 14 20 33 32 34 31 23 19 259 2015-C 18 7 6 15 11 22 27 15 13 18 15 4 171 2016-TBD 4 7 7 8 9 17 17 9 14 18 15 4 129
Number of Applications 40 Applications for Small Diameter Wells (Monthly Totals/Water Year) 35 30 25 20 2012-BN 2013-D 2014-C 2015-C 2016-TBD 15 10 5 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Month Calendar Year B
Large Diameter Wells - Permit Applications, Monthly Totals Water Year Calendar Year A Calendar Year B Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total 2006-W 2 1 4 4 1 1 1 14 2007-D 2 1 4 5 5 5 1 1 24 2008-C 2 1 6 1 3 2 2 15 3 1 36 2009-D 2 1 2 6 6 2 4 2 4 29 2010-BN 3 3 1 2 1 2 2 1 1 16 2011-W 3 1 3 3 2 1 2 1 16 2012-BN 1 1 1 2 1 1 4 8 2 21 2013-D 1 1 1 2 2 2 6 1 8 4 28 2014-C 2 3 15 12 10 5 2 5 6 6 5 71 2015-C 5 7 4 1 4 7 6 1 5 2 4 46 2016 Applications 5 10 3 4 2 3 2 2 2 4 37 2016 Completed 5 4 8 4 4 2 3 30 2016-Pending 10 3-6 -4-1 -1 2 4 7
Number of Applications Applications for Large Diameter Wells (Monthly Totals/Water Year) 16 14 12 10 8 2012-BN 2013-D 2014-C 2015-C 2016 Applications 6 4 2 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Month Calendar Year B
Well Repairs and Deepening - Permit Applications, Monthly Totals Calendar Year A Calendar Year B Water Year Total Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2006-W 3 1 4 2007-D 1 1 2 2 3 9 2008-C 3 2 1 1 1 1 3 3 15 2009-D 1 2 2 3 1 2 1 4 1 3 20 2010-BN 1 3 3 1 1 1 10 2011-W 2 2 1 4 9 2012-BN 1 1 1 2 1 1 7 2013-D 1 2 2 2 3 10 2014-C 2 1 8 2 1 2 1 17 2015-C 1 1 1 3 2 1 1 1 4 1 16 2016-TBD 3 4 4 4 4 4 4 1 4 1 33
Number of Applications Applications for Well Repairs/Deepening (Monthly Totals/Water Year) 9 8 7 6 5 4 2011-W 2012-BN 2013-D 2014-C 2015-C 2016-TBD 3 2 1 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Month Calendar Year B
Small Diameter Wells - Permit Applications, Annual Cumulative Totals Water Year Calendar Year A Calendar Year B Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2006-W 34 47 65 82 103 124 140 159 195 214 240 260 2007-D 24 38 46 62 76 96 124 143 168 188 210 228 2008-C 16 31 41 49 56 71 90 107 122 142 164 176 2009-D 17 27 35 48 58 69 90 107 130 153 173 188 2010-BN 9 18 26 28 32 46 68 78 100 118 132 140 2011-W 7 9 10 12 16 22 26 40 56 61 72 77 2012-BN 8 10 14 24 32 38 49 67 76 92 98 102 2013-D 9 19 21 32 54 81 116 152 171 188 212 221 2014-C 9 19 29 53 67 87 120 152 186 217 240 259 2015-C 18 25 31 46 57 79 106 121 134 152 167 171 2016-TBD 4 11 18 26 35 52 69 78 92 110 125 129
Number of Applications Applications for Small Diameter Wells (Cumulative Totals/Water Year) 300 250 200 150 100 50 0 125 129 110 92 78 69 52 35 26 4 11 18 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Calendar Year B Water Year 2011-W 2012-BN 2013-D 2014-C 2015-C 2016-TBD
Large Diameter Wells - Permit Applications, Annual Cumulative Totals Water Year Calendar Year A Calendar Year B Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2006-W 2 3 3 7 7 11 12 13 13 14 14 14 2007-D 2 3 3 7 12 12 17 17 22 23 23 24 2008-C 2 3 9 10 13 13 15 17 32 35 35 36 2009-D 2 3 5 11 17 19 19 19 23 25 25 29 2010-BN 3 6 7 9 9 10 12 14 15 16 16 16 2011-W 3 4 4 7 10 10 10 12 13 15 16 16 2012-BN 1 2 3 5 5 5 6 7 7 11 19 21 2013-D 1 1 2 3 5 7 9 15 16 16 24 28 2014-C 2 2 5 20 32 42 47 49 54 60 66 71 2015-C 5 12 16 17 21 28 34 35 40 40 42 46 2016 Applications 5 15 18 22 24 24 27 29 31 31 33 37 2016 Completed 5 5 5 9 17 21 25 27 30 30 30 30 2016-Pending 10 13 13 7 3 2 2 1 1 3 7
Number of Applications 80 Applications for Large Diameter Wells (Cumulative Totals/Water Year) 2016 Water Year: 30 wells were installed of the 37 total number of applicatins during the 2015 water year 70 60 50 2015 Water Year: 35 wells were installed of the 46 total number of applicatins during the 2015 water year 2014 Water Year: 35 wells were installed of the 71 total number of applications during 2014 water year 2011-W 2012-BN 40 30 20 15 18 22 24 24 27 29 31 31 33 37 2013-D 2014-C 2015-C 10 5 2016 Applications 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Calendar Year B Water Year
Well Repairs and Deepening - Permit Applications, Annual Cumulative Totals Water Year Calendar Year A Calendar Year B Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2006-W 3 4 4 4 2007-D 1 1 1 2 2 4 6 9 2008-C 3 5 6 7 8 8 9 9 9 12 15 15 2009-D 1 3 5 8 8 9 11 12 16 17 20 2010-BN 1 1 1 1 4 4 7 8 9 10 10 2011-W 2 2 2 2 2 2 2 2 4 5 9 9 2012-BN 1 1 1 1 1 1 2 3 5 5 6 7 2013-D 1 1 3 3 3 5 5 7 7 10 2014-C 2 2 3 11 11 13 14 14 16 16 17 17 2015-C 1 1 2 2 3 6 8 9 10 11 15 16 2016-TBD 3 7 11 15 19 23 27 27 27 28 32 33
Number of Applications 35 Applications for Well Repairs/Deepening (Cumulative Totals/Water Year) 32 33 30 27 27 27 28 25 20 19 23 2011-W 2012-BN 15 11 15 2013-D 2014-C 10 7 2015-C 5 3 2016-TBD 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Calendar Year A Calendar Year B Water Year