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Surface Water - Alabama Department of Environmental Management

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Appendix J. Physical characteristics and habitat quality <strong>of</strong> sites assessed in the Black Warrior and Cahaba River basins during ADEM's 2002 NPS Basinwide Screening Assessment.<br />

CU<br />

Cahaba River<br />

Sub-watershed 050 050 120 120 130 140 140 150 160 170 170<br />

Appendix J--Page 1 <strong>of</strong> 6<br />

Station PMUS-6 SAVS-7 AFF-2 BLU-1 WLT-1 MIL-1 OTWN-1 WAT-1 OAKG-3 CHIL-2 DRY-1<br />

Date (YYMMDD) 020516 020516 020515 020515 20515 020514 020514 020514 020514 020509 020509<br />

Subecoregion 67h 67h 65i 65i 65i 65i 65p 65i 65i 65a 65a<br />

Drainage area (mi 2 )<br />

Width (ft) 20 20 15 30 20 25 15 15 25 5 25<br />

Canopy cover b O S MS S 50/50 S S MO S MS MO<br />

Depth (ft) Riffle 0.4 0.3 1.0 0.1<br />

Run 1.0 1.0 0.5 1.0 0.3 1.0 0.5 2.0 0.2<br />

Pool 2.0 2.0 1.5 3.0 0.5 1.5 2.8 1.0<br />

Substrate (%) Bedrock 0 0 0 0 0 0 0 0 65 (Clay) 0 70 (Clay)<br />

Boulder 3 0 0 0 0 0 0 0 0 0 5 (Clay)<br />

Cobble 10 5 0 0 1 0 0 1 0 0 10 (Clay)<br />

Gravel 46 20 0 0 5 2 1 20 0 0 5 (Clay)<br />

Sand 30 45 87 60 79 65 92 70 19 90 2<br />

Silt 5 15 6 10 5 15 5 4 5 6 5 (Clay)<br />

Detritus 4 7 7 27 8 17 2 5 6 2 3<br />

Clay 2 2 0 0 1 0 0 0 5 2 0<br />

Organic silt 0 1 0 3 1 1 0 0 0 0 0<br />

Habitat assessment form c RR RR GP GP GP GP GP RR GP GP GP<br />

Habitat survey (% maximum)<br />

Instream habitat quality 73 56 48 67 36 43 28 58 58 32 33<br />

Sediment deposition 56 48 74 75 68 53 60 55 81 58 71<br />

Sinuosity 72 20 45 40 43 40 38 68 38 43 45<br />

Bank and vegetative stability 66 59 45 30 40 20 38 56 16 25 31<br />

Riparian measurements 95 98 66 90 90 60 93 74 90 45 88<br />

Habitat assessment score 174 149 129 138 115 94 114 152 126 93 110<br />

% Maximum 72 62 58 63 52 43 52 63 57 42 50<br />

Assessment d Excellent Good Good Excellent Good Fair Good Good Good Fair Good<br />

a. No flow; Assessment not conducted<br />

b. Canopy cover: S=shaded; MS=mostly shaded; 50/50=50% shaded; MO=mostly open; O=open<br />

c. Habitat assessment form: RR=riffle/run (Barbour et al. 1999); GP=glide/pool (Barbour et al. 1999)<br />

d. Assessment guidelines based on data collected at reference sites, 1991-2003; NG=no assessment guidelines<br />

e. Bridge construction; No assessment conducted<br />

f. Algal mats/Decaying algae<br />

g. Beaverdam; Not flowing; Assessment not conducted<br />

h. chemical/physical data collected during ADEM's §303(d) Monitoring Program

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