2. What Does It All Mean Siletz River near Siletz, OR May 20-23, 2013

3. What we learned this week Why & where we might collect sediment data How sediment is transported by water (fluvial) How the samplers work, (the 0.4 rule, isokinetic) Sed conc (mg/l) and discharge (tons/day) Under what conditions each sampler can be used (high vs low flow, Q vs sed peak) Sed sizes can vary in X-sec –pebbles,sand,silt,clay –In vertical and width

4. What we learned this week (cont) How to collect –Suspended-Sediment Samples –Bed Material (pebble counts with MacKenzie) Equal-Width-Increment (EWI) sampling Equal-Discharge-Increment (EDI) sampling Sampling sets A & B for QA/QC Analyze individual or composite Representative sample

5. What we learned this week (cont) Wading versus bridge sampling Use of 4-wheel crane & bridgeboard with D-74 & DH-76 --- Quart jars, green and red nozzles Use of hand-line with DH-59 (pint jars) Suspended load vs bedload (ewi & unequal-wi) –(Qb (tons/day/ft) = K (grams/sec/ft to tons/day/ft) * drymass (grams) / time (sec) We need more collaborative discussions

6. What’s Next Take this information and apply to your situations in your work Determine what the problem is (define objectives) Determine how to collect the best data Estimate and reduce the errors Contact us with any questions

7. THIS MEANS THAT YOU WILL HAVE TO THINK ABOUT WHAT YOU ARE DOING IN THE FIELD.

8. IF THIS IS YOUR PROBLEM

9. DO YOU COLLECT SAMPLES WITH THIS?

10. THINK ABOUT THESE SITUATIONS NON-MIXED STREAMS BRAIDED CHANNELS REVERSE FLOW URBAN vs RURAL STREAMS DEPTHS OVER 15’ PARTICLE SIZE OF SEDIMENT BEDLOAD vs SUSPENDED LOAD

11. That’s it- you folks were great

12. The Siletz Call Tutuni, Chinook and Kalapuya we hear your call High from the treetops the eagle is tall The Siletz rolls and rumbles through terrain ancient and wild Yet peaceful enough for even a child We thank you mighty one For this look and hope we give back More than we took