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Published byPatrick Mitchell Modified over 9 years ago
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Summary Overview Primary Headwater Habitat Assessment
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The Assessment Process Desktop Evaluation (4 steps) Field Reconnaissance 1 and Sampling (7 steps) Final Report (1 step)
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Desktop Evaluation Step 1- Obtain maps Step 2- Determine stream length Step 3- Determine area of watershed Step 4- Prepare for proper evaluation
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Field Reconnaissance and Sampling Step 5- Determine if baseflow conditions are present and determine if Q7-10 conditions are present Q7-10 is the lowest average, consecutive 7- day flow that reoccurs with a frequency of once in every ten years.
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Field Reconnaissance and Sampling Step 6- Flag stream reach sections
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Field Reconnaissance and Sampling Step 7- Record data on PHWH form, take pictures
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Field Reconnaissance and Sampling Step 8- Conduct water chemistry sampling
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Field Reconnaissance and Sampling Step 9- Conduct biological survey First - salamanders, Second – fish Third – macroinvertebrates Collect voucher specimens
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Field Reconnaissance and Sampling Step 10- Measure the three metrics
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Field Reconnaissance and Sampling Step 11- Conduct optional habitat measures Gradient Flood Prone Width Quantitative Pebble Counts
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Final Report Step 12- Determine appropriate aquatic life use designation Biological survey trumps HHEI survey
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You have now successfully surveyed a PHWH stream.
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Glossary Reconnaissance- The active gathering of information about conditions. Delineate- To trace the outline of.
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