Chapter 1 Minimum Flows and Levels - Southwest Florida Water ...

More documents

Recommendations

Info

Table 2-7. Beginning and ending calendar dates for annual flow Blocks 1, 2, and 3 for the Braden River for non-leap years. Calendar dates apply for both non-leap years and leap years. Start Date (Julian day) End Date (Julian Day) Number of days Block 1 May 7 (127) June 19 (170) 44 Block 2 October 25 (298) May 6 (126) 194 Block 3 June 20 (171) October 24 (297) 127 Period of Record (1988-2005) Median Daily Flows Braden River near Lorraine, FL Flow (cfs) 60 50 40 30 20 10 0 Block 2 Block 1 Block 3 Block 2 0 100 200 300 Julian Day Figure 2-16. Median daily flows for 1988 through 2005 at the USGS Braden River near Lorraine gage site and seasonal flow blocks (Blocks 1, 2 and 3) for the upper Braden River. 2-25
Water Chemistry 2.4.6 Water Quality Data Although flow can affect water quality, it is not expected that the adoption and achievement of minimum flows in the upper Braden River will necessarily lead to substantial changes in water quality. However, as part of the MFLs development process, available USGS water quality data for the Braden River were reviewed for identification of potential relationships between flow and water chemistry. For the following analyses, water quality data for the Braden River near Lorraine, FL gage were retrieved from the USGS on-line database. While some data are available on a number of water quality parameters, analysis was restricted to those parameters for which trends have been evaluated on other rivers for which MFLs have been developed. The USGS has long-term flow and water quality data for a number of gage sites throughout the District. Flow records at many sites exceed 50 to 60 years, and some of these have water quality records of 40 years or more. Except for special studies of relatively short duration, water quality at most USGS sites was typically monitored on a quarterly basis at best. Unfortunately, the water quality record for the Braden River is not as extensive as that for many other rivers in the District. Data for each parameter discussed in the following sections of this chapter are typically presented in three plots, including two time-series plot and a plot of the parameter versus flow. Unlike previous studies (e.g., Kelly et al. 2005a, 2005b, and 2007), we have not presented plots of the residuals obtained from a LOWESS regression of the parameter versus flow simply because the flow and water quality record were not sufficient for such an analysis. 2.4.7 Phosphorus Phosphorus has over the years been variously reported by the USGS as total phosphorus, dissolved phosphate, and as ortho-phosphate. For our analyses, it was assumed that dissolved phosphate and ortho-phosphate are essentially equivalent. Although some of the older data were reported as mg/l phosphate, all values were converted and expressed as mg/l phosphorus (P). Friedemann and Hand (1989) determined the typical ranges of various constituents found in Florida lakes, streams and estuaries. Based on their finding, 90% of all Florida streams exhibited total phosphorus concentrations less than 0.87 mg/l P. Although the record is not extensive, phosphorus concentrations in the upper Braden River (Figure 2-17) appear comparable to those observed in the upper Myakka River (see Table 2-8) and do not appear 2-26
Page 1 and 2: Proposed Minimum Flows and Levels f
Page 3 and 4: Table of Contents TABLE OF CONTENTS
Page 5 and 6: 5.5 PRESCRIBED FLOW REDUCTION FOR B
Page 7 and 8: Figure 2-19. Potassium concentratio
Page 9 and 10: Figure 5-13. Median daily flow at t
Page 11 and 12: mean feature elevations are listed
Page 13 and 14: For the high flow season of the yea
Page 15 and 16: Acknowledgements The authors would
Page 17 and 18: fluctuations in water flows or leve
Page 19 and 20: Common to this list and the flow re
Page 21 and 22: Fundamental to the approach used fo
Page 23 and 24: 300 250 Block 1 Block 3 Block 2 Flo
Page 25 and 26: are outlined in Chapter 4. In Chapt
Page 27 and 28: as the freshwater segment upstream
Page 29 and 30: attributed to analytic precision di
Page 31 and 32: Figure 2-4. 1999 land use/cover map
Page 33 and 34: Table 2-2. Land use/cover and land
Page 35 and 36: Figure 2-8. 1999 Land use/cover map
Page 37 and 38: Figure 2-10. 1972 Land use/cover ma
Page 39 and 40: Smith and Stopp (1978) note that "i
Page 41 and 42: 2.4.2.1 Multidecadal Periods of Hig
Page 43 and 44: 2.4.3.2 Step Trend in River Flows K
Page 45 and 46: Table 2-4. Results of Kendall's tau
Page 47 and 48: 2.4.4 Benchmark Periods Climate-bas
Page 49: Oscillation were examined. On a sea
Page 53 and 54: Braden River near Lorraine, FL 0.6
Page 55 and 56: Peace River at Arcadia, FL 10 Potas
Page 57 and 58: Table 2-8. Summary statistics for B
Page 59 and 60: 3.2 Resources and Area of Concern T
Page 61 and 62: habitat, the greater area of stream
Page 63 and 64: levels such as fish have been shown
Page 65 and 66: Figure 3-1. Example of low flow in
Page 67 and 68: USGS Braden River near Lorraine gag
Page 69 and 70: instream cross-sections were sample
Page 71 and 72: Figure 4-2. Upstream vegetation cro
Page 73 and 74: supports water surface profile calc
Page 75 and 76: The HEC-RAS model was run using 21
Page 77 and 78: Adult Spotted Sunfish Adults - Brad
Page 79 and 80: species of interest. For example cu
Page 81 and 82: 4.4 Seasonal Flow and Development o
Page 83 and 84: Wetted Perimeter - Sta. 44.9 25 20
Page 85 and 86: factors, the most conservative of w
Page 87 and 88: Chapter 5 Results and Recommended M
Page 89 and 90: Wetted Perimeter Requirements Flow
Page 91 and 92: 40 35 30 25 20 15 10 5 0 May June M
Page 93 and 94: Floodplain profiles and vegetation
Page 95 and 96: mean elevation of the Oak/popash ve
Page 97 and 98: Table 5-3. Mean (±SD) flows at the
Page 99 and 100: Elevaton (NGVD) 27.0 22.0 17.0 12.0
Page 101 and 102:
Table 5-7. Median elevations, in fe
Page 103 and 104:
80 70 60 Flow reduction (%) 50 40 3
Page 105 and 106:
Table 5-8. Recommended percent flow
Page 107 and 108:
100 90 80 % DOMINANCE 70 60 50 40 3
Page 109 and 110:
Table 5-9. Mean elevation of instre
Page 111 and 112:
The second standard was developed t
Page 113 and 114:
Table 5-10. Proposed Minimum Flows
Page 115 and 116:
Division Information and Technology
Page 117 and 118:
Hupalo, R., C. Neubauer, L. Keenan,
Page 119 and 120:
communities in the corridors of the
Page 121 and 122:
Wharton, C.H., W.M. Kitchens, E.C.
Page 123 and 124:
Confined Aquifer - A term used to d
Page 125 and 126:
Instream Habitats - A specific type
Page 127 and 128:
Riffle - A relatively shallow reach
Page 129 and 130:
Chapter 8 Appendix A A Review of
Page 131 and 132:
steps to reduce the uncertainty and
Page 133 and 134:
2007). In addition, the approach us
Page 135 and 136:
with limited biological knowledge o
Page 137 and 138:
the other factors listed above or w
Page 139 and 140:
have now been developed and adopted
Page 141 and 142:
An example of the primary output fr
Page 143 and 144:
prevent negative effects associated
Page 145 and 146:
methods, such as LiDAR, to improve
Page 147 and 148:
habitat reduction criterion and the
Page 149 and 150:
Summary, Special Publication SJ2002
Page 151 and 152:
Errata / comments by page number in
Page 153 and 154:
4-20 Section 4.7.1, 1 st paragraph,
Page 155 and 156:
Chapter 9 Appendix B - Staff Respon
Page 157 and 158:
2) The panel notes that the period
Page 159 and 160:
4) One aspect of Chapter 2 should b
Page 161 and 162:
Preventing Significant Harm - 15% C
Page 163 and 164:
they aren't getting enough particul
Page 165 and 166:
Habitat Criteria and Characterizati
Page 167 and 168:
Compliance Standards and Proposed M
Page 169 and 170:
Glossary of Terms 13) When an inter
show all

Chapter 1 Minimum Flows and Levels - Southwest Florida Water ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?