rob breeding bolin creek: healing our local waterways
DESCRIPTION
Friends of Bolin Creek Water Symposium Feb. 2012 Adjunct to CH2020 process.TRANSCRIPT
Our Local Streams,Bolin & Morgan Creeks
Can We Heal Our Local Waterways?
Rob Breeding, Eastern Watershed Planner
February 11, 2012
Little Creek WARP & Morgan Creek LWP Studies
Can We Heal Our Local Waterways?
Rob Breeding, Eastern Watershed Planner
February 11, 2012
Little Creek WARP & Morgan Creek LWP Studies
Stream Assessment forWARP
GOALS• Determine the best methods
for assessing the health of NC streams and aquatic habitat conditions
• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds
• Identify sources
Stream Assessment forWARP
GOALS• Determine the best methods
for assessing the health of NC streams and aquatic habitat conditions
• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds
• Identify sources
Stream Assessment forWARP
GOALS• Determine the best methods
for assessing the health of NC streams and aquatic habitat conditions
• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds
• Identify sources
Stream Assessment forWARP
GOALS• Determine the best methods
for assessing the health of NC streams and aquatic habitat conditions
• Identify water quality and habitat stressors in Bolin & Booker Creek watersheds
• Identify sources
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Water Quality Assessment
METHODS• Biological Sampling
– Insects
– Fish
– Algae
• Water Quality Sampling
– General Parameters
– Nutrients
– Toxicity
Insect Sampling
INDICATOR GROUPS
• Mayflies
• Stoneflies
• Caddisflies
• Midges
Insect Sampling
• Diagnostic for all instream ecosystem functions for a reach or tributary
• Detailed interpretation can suggest likely stressors
• Potential for long-term water quality trend assessment
What We Found…
What Else We Found…
Fish Sampling
INDICATOR GROUPS
• Tolerant, intermediate and intolerant species
• Insectivores, piscivores and omnivores
Johnny Darter
Fish Sampling
INDICATOR GROUPS
• Tolerant, intermediate and intolerant species
• Insectivores, piscivores and omnivores
Redfin Pickerel
White Shiner
Fish Sampling
• Diagnostic for all instream ecosystem functions for a reach or tributary
• Detailed interpretation can suggest stressors and can indicate post-project improvement
• Potential for trend assessment
What We Found…
• Piscivores present
• Omnivores present in moderate numbers
• Insectivores predominant at all sampling sites
Water Quality Sampling
METHODS• Collect field samples
• Analyze in laboratory
• Compare concentrations to benchmarks and references
Water Quality Sampling
METHODS• Storm water &
baseflow
• Wide array of chemicals and classes
Water Quality Sampling
• Directly measures inputs from surrounding land use
• Detailed interpretation can help explain biological condition
• Used to support model development
• Potential for long-term trend analysis
What We Found…
• Dissolved Oxygen—slightly worse in lower Bolin but not a smoking gun
• Nutrients—Nitrogen and Phosphorus OK
• Some Metals—Copper of concern in few storm samples; iron, manganese, & aluminum high but likely background “noise”
• Some Pesticides—Atrazine & DDT at low levels
Toxicity Testing
• Multitaxa toxicity screening of water diagnoses problems difficult to address with traditional restoration projects
• Sediment testing can show long-term or historic issues
• Tox testing helps explain poor bio community condition
• Done in conjunction with other water quality sampling
The Morgan Creek LWP
GOALS• Characterize the health of
the streams and aquatic habitat conditions
• Identify water quality and habitat stressors in subwatersheds
• Inform the management recommendation process
• Field Assessment• Land use• Water Quality• Riparian Buffer• Stream Stability• Aquatic Habitat• Typical Stream Measurements • Other site characteristics
Riparian Assessments
Riparian Assessment Results• Assessments and Project Yield
• 40+ reaches assessed• 21 potential restoration and/or
enhancement projects in Bolin• 5 potential restoration reaches in
Little Creek
• Observations• Bank erosion• Lack of woody buffer• Channel modification• Sedimentation• Degraded aquatic habitat• Utility crossings
More Recent Information…
• Carrboro sponsors Benthic Macroinvertebrate sampling annually—data suggests possible declines in developing areas
• EarthTech Stormwater Retrofit Study
• Division of Water Quality Basinwide Assessment & Basin Plan
What the Future Holds…
• ?????
• Continued Aquatic Insect Community Sampling
• Continued DWQ Basinwide Assessment and Planning
• DWQ Restoration Watershed Support
Find Out More…
http://www.nceep.net/services/lwps/Morgan_Creek/Morgan.pdf
http://portal.ncdenr.org/web/wq/swp/ws/pdu/wat/warp
Our Local Streams,Bolin & Morgan Creeks
Questions?