REGIONAL COUNCIL ............................................................................................................................................................ I TABLE OF CONTENTS.......................................................................................................................................................... II INTRODUCTION ................................................................................................................................................................. 1 STREAMFLOW VOLUME ..................................................................................................................................................... 4 METHODS................................................................................................................................................................................. 4 RESULTS ................................................................................................................................................................................... 4 FY 2010-2011Results ......................................................................................................................................................... 4 Historical Trends ............................................................................................................................................................... 4 GROUNDWATER LEVELS .................................................................................................................................................... 8 METHODS................................................................................................................................................................................. 8 RESULTS ................................................................................................................................................................................... 8 EXTENT OF SURFACE FLOW (WET/DRY MAPPING WALK-THROUGHS) ............................................................................. 13 METHODS............................................................................................................................................................................... 13 RESULTS ................................................................................................................................................................................. 13 WATER CHEMISTRY ......................................................................................................................................................... 20 METHODS............................................................................................................................................................................... 20 RESULTS ................................................................................................................................................................................. 20 REPEAT PHOTOGRAPHY ................................................................................................................................................... 23 ADDITIONAL RELATED MONITORING ............................................................................................................................... 27 HEADCUT STUDY ...................................................................................................................................................................... 27 WILDLIFE OBSERVATIONS .......................................................................................................................................................... 27 OUTREACH AND COORDINATION .................................................................................................................................... 27 DROUGHT WATCH ................................................................................................................................................................... 27 PUBLIC OUTREACH ................................................................................................................................................................... 27 COORDINATION ....................................................................................................................................................................... 27 CONCLUSIONS AND RECOMMENDATIONS ....................................................................................................................... 29 ACKNOWLEDGEMENTS .................................................................................................................................................... 29 TABLE 1. MONTHLY STREAMFLOW VOLUMES (JULY 2010 - JUNE 2011) ................................................................................................. 5 TABLE 2. DEPTH TO GROUNDWATER AND STREAMFLOW PRESENCE AT CIENEGA CREEK NATURAL PRESERVE MONITOR WELL SITES .................... 9 TABLE 3. ANNUAL AVERAGE DEPTH TO WATER AND CUMULATIVE CHANGE ............................................................................................ 10 TABLE 4. CIENEGA CREEK, LOWER DAVIDSON CANYON AND UPPER DAVIDSON CANYON, QUARTERLY DATA FOR FLOW EXTENT MONITORING (SEP. 2009 - JUNE 2011) ............................................................................................................................................................. 14 TABLE 5. CIENEGA CREEK AND UPPER DAVIDSON CANYON, SUMMER MONTHS’ TOTAL LENGTH OF FLOW EXTENT, (1984 -2011)................... 15 FIGURE 1A. PAG MONITORING SITE LOCATIONS IN THE CIENEGA CREEK WATERSHED ................................................................................ 2 FIGURE 1B. PAG WATER QUALITY MONITORING SITE LOCATIONS .......................................................................................................... 3 FIGURE 2. MONTHLY STREAMFLOW VOLUME AT TILTED BEDS AND MARSH STATION SITES (JULY 2008 -JUNE 2011) ...................................... 6 FIGURE 3. MONTHLY STREAMFLOW VOLUME AT TILTED BEDS AND MARSH STATION SITES (1993 – 2011) ................................................... 7 FIGURE 4. ANNUAL MEAN STREAMFLOW VOLUME TRENDS AT MARSH STATION (FY 93-94 TO FY 10-11) .................................................... 7 FIGURE 5. ANNUAL CHANGE IN AVERAGE DEPTH TO WATER ................................................................................................................ 10 FIGURE 6A. CIENEGA CREEK NATURAL PRESERVE MONTHLY DEPTH TO GROUNDWATER (JUNE 1994 - JUNE 2011) ...................................... 11 FIGURE 6B. PN-2 MONTHLY DEPTH TO GROUNDWATER (JUNE 2005 - JUNE 2011) ............................................................................... 12 FIGURE 7. CIENEGA CREEK NATURAL PRESERVE MONTHLY DEPTH TO GROUNDWATER (JULY 2009 - JUNE 2011) ......................................... 12 FIGURE 8. MAPS OF CIENEGA CREEK AND DAVIDSON CANYON, QUARTERLY FLOW EXTENT (SEP. 2010 - JUNE 2011) ................................... 16 FIGURE 9. CIENEGA CREEK QUARTERLY FLOW EXTENT, 1999 TO 2011 ................................................................................................. 17 FIGURE 10. CIENEGA CREEK FLOW EXTENT, 1975 TO 2011 ................................................................................................................ 17 FIGURE 11. MAP OF CIENEGA CREEK’S JUNE FLOWING REACHES -1999 TO 2011 ................................................................................... 18 FIGURE 12. GRAPH OF PERCENT OF CREEK LENGTH FLOWING IN JUNE: PERENNIAL FLOW.......................................................................... 19     Trend line        Jungle Road - A Stand on road in middle of channel. Look Downstream. Jungle Road - B Stand on road in middle of channel. Look Upstream. #2 Jungle Tunnel Stand downstream of beginning of flow (by tunnel). Capture some of banks of tributary. Look Downstream. #5 Upstream of Tilted Beds Stand 30 paces from barbed wire fence. Look Upstream. #3 Tilted Beds A Measuring site in foreground. Look Downstream. #4 Tilted Beds B Standing atop sandstone outcrop looking upon bucket measuring site. Look Upstream. Bend Headcut original channel in horseshoe bend Stand a ways upstream of RR Wash. Look Downstream. HCa Head Cut - A At Major headcut plunge pool where headcuts split, slightly upstream of pool, on bank. Look Downstream. HCb Head Cut - B At Major headcut plunge pool where headcuts split, standing slightly downstream of pool, in headcut. Look Upstream. Confluence - Upstream from railroad bridge Downstream of confluence of Cienega Creek and Davidson Creek. Look Upstream.Take another to include bedrock, standing more downstream, depending on conditions. Davidson - Deer Grass - A Up Davidson Canyon to most extreme possibility of beginning of flow. Look Upstream. Davidson - Deer Grass - B Same as above, but Look Downstream. #9 Sharp bend in creek upstream in Davidson Creek Walk upstream from confluence to end of flow, Look Downstream. #10 Just downstream from sharp bend in creek Just downstream from Point #9, take picture with end of flow included - Turn around to Look Upstream. #7 Upstream from Marsh Station Through the railroad bridge (with bridge support structure in photo). Vertical shot. Look Upstream. Take extra photos if you need to see stream beds and banks closer up (less bridge). #6a Marsh Station - A Bedrock on left, with bridge in picture. Standing downstream of flow measurement site. Look Downstream. #6b Marsh Station - B Flow measurement site in photo. Look Upstream. Sediment Plug Stand downstream of stream bend where it is cutting into sediment (duck spot). Capture wide new banks. Look Upstream. #11a SP 1006 (Southern Pacific mile marker) - A Stand downstream from beginning of flow with hill present ahead on right (may not be visible). Look Upstream. #11b SP 1006 (Southern Pacific mile marker) - B Stand upstream from beginning of flow with hill present ahead on left (may not be visible). Look Downstream. #12a Del Lago Dam - A Focus on dam. Stand a bit upstream on N side of creek. Look Downstream. Make sure you can see the distance of flow over dam or get another shot. #12b Del Lago Dam - B Focus on dam. Stand a bit downstream on N side of creek. Look Upstream. #12c Del Lago Dam - C Look across dam from south bank. Capture flow over dam and the pools. #1 #8 Dav Sediment Plug   