Surface Water - Alabama Department of Environmental Management

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Cahaba River (0315-0202) Sub-Watershed: Cahaba River NRCS Sub-Watershed Number 070 Landuse: The Cahaba River sub-watershed drains approximately 93 mi 2 in Bibb, Shelby, and Tuscaloosa Counties. Landuse within the sub-watershed was primarily forest mixed with mining. This segment of the Cahaba River is designated as an Outstanding Alabama Water. Seven current construction/stormwater authorizations and 5 mining NPDES permits have been issued in the sub-watershed (Appendix C). Percent land cover estimated by local SWCD (Appendix A, ASWCC 1998) Forest Row crop Pasture Mining Urban Open Water Other 75% 0% 5% 15% 5% 0% 0% NPS impairment potential: Overall potential for impairment from nonpoint sources was moderate. The nonpoint source categories of primary concern were mining and sedimentation. Mining contributed 87% of the total sediment load estimated for the subwatershed. Watershed reconnaissance also indicated historical forest harvesting to be a potential source of sediment. Cahaba River was given a 3 rd priority sub-watershed rating by the SWCD for resource concerns listed in Appendix I. Potential for impairment from urban sources was estimated as low (Appendix D). Ratings for each NPS category based on values estimated during the SWCD sub-watershed assessment. Category Overall Potential Animal husbandry Aquaculture Row crop Pasture Mining Forestry Sediment Value 14 0.02 AU/ac 0.00% 0% 5% 15% ur 31.0 tons/ac/yr NPS Potential M L L L L H ur H Appendix D H H A A A I I Assessments: An assessment was not conducted within the sub-watershed during the 2002 NPS screening assessment (Appendix F). Assessments of Caffee Creek, Cane Creek, and the Cahaba River were conducted during §303(d) Monitoring Program (Appendix E). Caffee Creek was also assesed during ADEM’s Periphyton Bioasesment Pilot Project (Appendix E). Assessment stations located within the sub-watershed. Descriptions provided in Appendix E-1. Station Assessment Type Date Location Area (mi 2 ) CAFC-1 Chemical, Habitat, Biological Classification 2002 Caffee Cr. at Bibb CR 24 14 F&W CNC-1 Chemical 2002 Cane Cr. at Bibb CR 21 12 F&W CABB-2 Chemical 2002 Cahaba R. at Jefferson CR 24 593 OAW Caffee Creek: At CAFC-1, Caffee Creek is a small, sand-bottomed stream located in the Southern Sandstone Ridges (67h) subecoregion (Appendix P-1). In May of 2002, habitat quality was assessed as excellent for this stream type although sediment deposition and embeddedness were noted at the site. Twelve EPT families were collected at the reach, 68
Cahaba River (0315-0202) indicating the macroinvertebrate community to be in good condition (Appendix P-2). The fish community was assessed as fair/poor (Appendix P-2). Intensive water quality data collected from January through August of 2002 showed periodically elevated nutrient concentrations (TP, NO 3 +NO 2 -N, NH 3 -N, and TKN), conductivity, and hardness values (Appendix P-3). Cane Creek: Cane Creek is located within the Southern Sandstone Ridges (67h) subecoregion (Appendix E). Intensive water quality data were collected from Cane Creek at CNC-1, May through September of 1999 (Appendix P-3). Dissolved oxygen concentrations were
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SURFACE WATER QUALITY SCREENING ASS
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Table of Contents TABLE OF CONTENTS
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List of Figures LIST OF FIGURES 1 C
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List of Abbreviations LIST OF ABBRE
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Introduction INTRODUCTION Backgroun
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Introduction document includes a de
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Introduction Table 1, cont. List of
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Methodology Table 7. Sub-watersheds
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Methodology Fig. 1. Cataloging unit
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Methodology Fig. 2. Level IV Ecoreg
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Methodology The southern section of
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Methodology The Southern Table Plat
Page 25 and 26: Methodology Table 8. Current conver
Page 27 and 28: Methodology SITE SELECTION Alabama
Page 29 and 30: Methodology Process samples in the
Page 31 and 32: Methodology Water quality samples a
Page 33 and 34: Summary: BWC River Basins Summary:
Page 35 and 36: Summary: BWC River Basins Fig. 3. C
Page 37 and 38: Summary: BWC River Basins Fig. 4. E
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Page 57 and 58: Summary: BWC River Basins Results o
Page 59 and 60: Summary: BWC River Basins Impaired
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Page 63 and 64: Summary: BWC River Basins Table 5,
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Page 67 and 68: Cahaba River (0315-0202) Cahaba Riv
Page 69 and 70: Cahaba River (0315-0202) Types of a
Page 71 and 72: Cahaba River (0315-0202) Fig. 15. I
Page 73 and 74: Cahaba River (0315-0202) Sub-Waters
Page 75: Cahaba River (0315-0202) suspended
Page 79 and 80: Cahaba River (0315-0202) assessed a
Page 81 and 82: Cahaba River (0315-0202) Assessment
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Page 85 and 86: Mulberry Fork (0316-0109) Fig. 16.
Page 87 and 88: Mulberry Fork (0316-0109) List of i
Page 89 and 90: Mulberry Fork (0316-0109) Assessmen
Page 91 and 92: Mulberry Fork (0316-0109) greater t
Page 97 and 98: Mulberry Fork (0316-0109) Eightmile
Page 99 and 100: Mulberry Fork (0316-0109) Broglen R
Page 105 and 106: Mulberry Fork (0316-0109) Sub-Water
Page 111 and 112: Mulberry Fork (0316-0109) Bunkum Cr
Page 119 and 120: Mulberry Fork (0316-0110) Sipsey Fo
Page 121 and 122: Mulberry Fork (0316-0110) waters. A
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Page 125 and 126: Sipsey Fork (0316-0110) Sub-Watersh
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Sipsey Fork (0316-0110) and GSA (Ap
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Sipsey Fork (0316-0110) Assessment
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Sipsey Fork (0316-0110) Sub-Watersh
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Sipsey Fork (0316-0110) unstable ba
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Sipsey Fork (0316-0110) conditions
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Locust Fork (0316-0111) Historical
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Locust Fork (0316-0111) Fig. 18. 20
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Locust Fork (0316-0111) Upper Locus
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Locust Fork (0316-0111) ADEM 1999a)
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Locust Fork (0316-0111) and fair/po
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Locust Fork (0316-0111) bottom subs
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Locust Fork (0316-0111) Assessment
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Locust Fork (0316-0111) oxygen. ADE
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Locust Fork (0316-0111) Longs Branc
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Upper Black Warrior River (0316-011
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Lower Black Warrior River (0316-011
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References ACES. 1997. Soil areas o
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References ADEM. 2002b. Nonpoint so
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References APHA, AWWA, and WEF. 199
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References Omernik, J.M. 1996. Leve
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APPENDICES
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Appendix A, cont. Land use percenta
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Appendix B--Page 1 of 3 Appendix B.
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Appendix B--Page 3 of 3 Appendix B,
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Appendix C-2. List of waterbodies w
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Appendix C-2, cont. List of waterbo
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Appendix D, cont. Estimates of (H)i
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Appendix D cont. Estimates of (H)ig
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Appendix E. Stations assessed in th
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Appendix F--Page 2 of 2 Appendix F,
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Appendix G, cont. Summary of assess
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Appendix H, cont. Estimates of anim
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Appendix I. Sedimentation estimates
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Appendix I, cont. Sedimentation est
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Appendix J, cont. Physical characte
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Appendix K. Bioassessment results f
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Appendix L-2. ADEM Glide/Pool habit
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ADEM — FIELD OPERATIONS DIVISION
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Appendix M--Page 2 of 3 Appendix M.
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Appendix N. Concentration of metals
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Appendix O-1. Physical characterist
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Appendix O-3. Physical/chemical dat
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Appendix O-3--Page 3 of 4 Appendix
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Appendix P. §303(d) Waterbody Moni
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Appendix P-1. Physical characterist
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Appendix P-2. Bioassessment results
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Appendix P-3. Physical/chemical dat
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Appendix Q. Periphyton Bioassessmen
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Appendix Q--Page 2 of 2 Appendix Q.
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Appendix R--Page 1 of 5 Appendix R.
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Appendix S--Page 1 of 9 Appendix S.
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Appendix S. Physical/chemical data
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Appendix T-1. Results of habitat as
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Appendix T-1. Results of habitat as
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Appendix T-2--Page 1 of 1 Appendix
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Surface Water - Alabama Department of Environmental Management

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