Etowah Habitat Conservation Plan - River Basin Center at the ...
Etowah Habitat Conservation Plan - River Basin Center at the ...
Etowah Habitat Conservation Plan - River Basin Center at the ...
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Georgia W<strong>at</strong>er Resource Conference<br />
April 26, 2005<br />
<strong>Etowah</strong> <strong>Habit<strong>at</strong></strong><br />
<strong>Conserv<strong>at</strong>ion</strong> <strong>Plan</strong>
<strong>Etowah</strong> W<strong>at</strong>ershed
Fish Diversity of <strong>the</strong> <strong>Etowah</strong> W<strong>at</strong>ershed Compared to<br />
Much Larger W<strong>at</strong>ersheds<br />
Columbia<br />
W<strong>at</strong>ershed<br />
33 N<strong>at</strong>ive Fish<br />
<strong>Etowah</strong><br />
W<strong>at</strong>ershed<br />
Colorado<br />
W<strong>at</strong>ershed<br />
25 N<strong>at</strong>ive Fish<br />
76 N<strong>at</strong>ive<br />
Fish (91<br />
Historically)
<strong>Etowah</strong> <strong>River</strong> System Fishes<br />
.<br />
91 n<strong>at</strong>ive, 8 federally protected<br />
4 endemic<br />
15 extirp<strong>at</strong>ed
Major Stressers<br />
• Fragment<strong>at</strong>ion<br />
• Stormw<strong>at</strong>er/Alter<strong>at</strong>ion of hydrologic regime<br />
• Sediment<strong>at</strong>ion
Endangered Species Act § 9<br />
• Unlawful for any person to “take” an<br />
endangered or thre<strong>at</strong>ened species<br />
– Harm, wound, kill, collect, sell, etc.<br />
– Degrade or modify habit<strong>at</strong><br />
• Exception: Incidental Take
Endangered Species Act § 7<br />
• Prohibits jeopardy for federal action
Regional HCP<br />
• Local governments hold incidental take permits<br />
• Avoid individual permitting for every development<br />
project<br />
• Know rules before development starts<br />
---------------------------------------------<br />
• Protect endangered species<br />
• Save time & money<br />
• Eligible for federal funding for land acquisition<br />
• Improve basin health
Governance & Staff<br />
• Steering Committee<br />
• Advisory Committee<br />
• Public Involvement Committees (Technical)
Research Efforts to Address Linkages between<br />
Land-use Activities and Fish Assemblages
Major Stressers<br />
• Fragment<strong>at</strong>ion<br />
• Sediment<strong>at</strong>ion<br />
• Stormw<strong>at</strong>er/Alter<strong>at</strong>ion of hydrologic regime
Major Stressers<br />
• Fragment<strong>at</strong>ion<br />
– Stream Crossing Requirements<br />
– W<strong>at</strong>er Supply Siting<br />
• Sediment<strong>at</strong>ion<br />
– Riparian Buffer Ordinance<br />
– E&S Standard Oper<strong>at</strong>ing Procedures<br />
• Stormw<strong>at</strong>er/Alter<strong>at</strong>ion of hydrologic regime<br />
– Stormw<strong>at</strong>er Management Ordinance<br />
– Better Site Design Checklist
Stormw<strong>at</strong>er Management<br />
• Develop altern<strong>at</strong>ives to<br />
managing runoff from<br />
roads<br />
– Bioretention<br />
– Enhanced swales<br />
– Permeable pavements<br />
– Enhanced tree pits
Stormw<strong>at</strong>er Management<br />
• Relax setback<br />
requirements<br />
– Set min & max<br />
– Encourage clustering<br />
• Allow narrow frontages<br />
to reduce street length
Marietta<br />
Cartersville<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
Front Setbacks<br />
Forsyth<br />
Lumpkin<br />
Pickens<br />
Cobb<br />
Bartow<br />
Minimum Setback (ft)
Doraville resident bioretention<br />
Cherokee County resident bioretention<br />
Images courtesy of Diane Minick
Stormw<strong>at</strong>er Management<br />
• Reduce imperviousness of<br />
parking lots<br />
– Reduce required spaces<br />
– Allow shared parking<br />
agreements<br />
– Use landscaping for<br />
infiltr<strong>at</strong>ion<br />
– Allow porous pavements in<br />
low traffic areas
Stormw<strong>at</strong>er Management<br />
Image courtesy of Candace Stoughton
Porous Paving Altern<strong>at</strong>ives<br />
Porous<br />
Asphalt<br />
Porous<br />
Concrete<br />
Pavers<br />
Grassed<br />
Pavement
Green Roof
Cyprinella trichroistia<br />
Best model: Historic+Current<br />
Estim<strong>at</strong>ed limit: 4-5% TIA<br />
Model accuracy:
Predevelopment<br />
Postdevelopment
How can runoff limits be accomplished?
Site Level – lower <strong>the</strong><br />
postdevelopment CN<br />
Preserve <strong>the</strong> site’s<br />
n<strong>at</strong>ural hydrologic<br />
functions<br />
Site fingerprinting to<br />
minimize disturbance<br />
of existing veget<strong>at</strong>ion<br />
and soils<br />
Clustering development<br />
reduces impervious<br />
surfaces and<br />
infrastructure costs<br />
Images courtesy of Delaware Department of N<strong>at</strong>ural Resources
Lot Level – micromanagement<br />
and source control<br />
Minimize clearing<br />
and grading<br />
Minimize directly connected<br />
impervious cover<br />
On lot bioretention<br />
and infiltr<strong>at</strong>ion<br />
Images courtesy of Prince George’s County, MD
Major <strong>Etowah</strong> HCP Components<br />
• How development should<br />
occur (BMPs)<br />
– Roads and<br />
infrastructure<br />
– Stormw<strong>at</strong>er control<br />
– Riparian buffer<br />
protection<br />
– E&S control<br />
•W<strong>at</strong>er supply<br />
• Protection of priority areas<br />
– Runoff limits
www.rivercenter.uga.edu<br />
www.etowahhcp.org
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