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Mark West Creek Watershed Hydrologic Study Public Meeting - Shared screen with speaker view
Matthew O'Connor
46:17
Puff Creek is Monan's Rill
Lynn Garric
56:16
audio quality is breaking up a little
Penny Sirota
56:20
Having trouble with sound here. Its bogging down.
Betty Andrews
56:35
same here
Tracy Daly
56:37
Yes, sound is degraded
Sonoma RCD
56:50
Ok hold on folks let me see what I can do
Matthew O'Connor
57:02
yes, lets hope the internet weather improves
Doug Bush
01:01:37
sounds better
derek acomb
01:01:38
yes!
Penny Sirota
01:01:38
Yes
Ray Krauss
01:18:28
You show annual water usage. How does seasonal use effect conditions; ie higher irrigation pumping during summer and early fall?
John Mack
01:19:30
what is effect of groundwater withdrawal on stream flow and riffle depth during key summer months july-sept?
Rick Rogers
01:20:17
slide 8: it appears that the model is overestimating flow volume, especially in spring/fall for Rancho site. What is an acceptable error in those simulated values?
Lynn Garric
01:21:22
what have you been able to determine about the canopy loss due to Tubbs Fire and loss of shade/temperature increase on the middle stretch. any more specific recommendations for vegetation restoration
Bruce Abelli-Amen
01:21:44
Any thoughts on strategic recharge projects in the upper watershed to enhance the hydrologic engine?
Bob Solecki
01:22:33
Regarding the lack of deep pools and shade that would benefit salmonids, is this due to anthropomorphic impacts or has the watershed always lacked these habitat characteristics?
Rob Pennington
01:22:46
Have you calculated errors for the only the low flow period?
Dan Worth Worth
01:23:29
Are the model input data available to people that request it? Specifically, stream flow and groundwater level data.
Ray Krauss
01:23:34
Do groundwater storage and flows reflect rock fracturing? For example, you show andesite as low storage, but it is known to be highly fracture in some areas.
Kit Barron
01:24:56
Are there any interventions that you can recommend to help shape the structure of the streambed so that it is more conducive to salmonid spawning/rearing (e.g., rock positioning to encourage refugia pools)? Or is this a situation where it is better to let nature take its course?
Ray Krauss
01:26:20
We do know that historically there were ample salmon. So what has change if conditions are the same today as there were historically?
Tim McCarthy-Smith
01:27:04
When you say "scour" a pool, why not take an excavator and DIG a pool every few hundred feet?
Sierra Cantor
01:28:25
Is dissolved oxygen data available for some reaches with flow and temperature data? In areas that meet minimum riffle depths, but are temperature limited, are the dissolved oxygen concentrations meeting water quality objectives for salmonids?
Ray Krauss
01:32:39
Effectiveness of rooftop rain capture and storage?
Penny Sirota
01:33:47
Pg 27 - Question about recharge enhancement - there are areas of historic seasonal vernal pools - several areas that have been drained - if these were revitalized - might it be an important recharge strategy?
Ray Krauss
01:37:25
#29 Flow replenishes more quickly depending on degree of fracturing of bedrock.
Ray Krauss
01:38:44
Again, doesn’t reflect degree of fracturing.
Matthew O'Connor
01:41:35
Ray, as you know, fracture flow is difficult to characterize for modeling work; we can consider a sensitivity analysis to try to evaluate how that might change the representation in the simulation.
Ray Krauss
01:42:49
Matthew, fracture flow would make big difference it seems to me.
Valerie Zimmer
01:43:04
GW diversions on streamflow ~ 0.06 cfs. MANY groundwater wells are within 100m of the creek - even these close wells aren't having a big effect on summer baseflow? What is the primary explanation - because the conductivity is low? Because the baseflow is being driven by springs up the hill? Because the wells are deep and in a different layer than the stream bed?
Matthew O'Connor
01:43:19
Ray-It certainly could.
Penny Sirota
01:44:08
is groundwater pumping more impactful in the Upper Watershed where the “engine” is located?
Matthew O'Connor
01:44:38
Valerie-we are still looking at that question. There will be more on that before we are done.
Rick Rogers
01:45:11
was the diversion data captured from eWRIMS? if so, were surface diversion estimates conservative enough to account for illegal/unregistered diversions (a problem seen during the drought emergency order in GVC)?
Matthew O'Connor
01:47:11
Kit-Streambed conditions have a major influence on pool formation and persistence; in this system I think that intervention potential exists, but is more limited than in some other watersheds
Matthew O'Connor
01:49:37
Rick Rogers-diversion data includes the emergency order data base; we aren't accounting for illegal unreported diversions; we do account for some illegal water use for cannabis
Kahtarina Kljavin
01:50:55
Is there concern that compost applications on grasslands would alter the soil composition and encourage annual invasive species or is is mostly annual invasive grasses anyways?
Ray Krauss
01:52:08
#38 Not Alpine too?
Penny Sirota
01:52:53
What if the areas of the watershed that are already characterized as being infiltration geology were enhanced? (Connected to earlier question having to do with vernal pools) or other infiltration projects where the soils are most receptive. How can we maximize the positive impact of the upper water shed?
Ray Krauss
01:54:22
Why would you need permission just to model?
Sonoma RCD
01:56:33
Ray - During our outreach to landowners with ponds for the modeling, some landowners specifically stated that they did not want to be modeled or be apart of the study.
Ray Krauss
01:57:15
Shouldn’t make any difference. All public information.
Ryan Ferrell
01:57:30
Kahtarina- The compost application would in theory be 1/4" based on the modeling by Flint et al. 2018 "increasing soil organic carbon... strictly speaking it would not change the soil composition of the soil except to increase organic matter for some time and therefore water holding capacity. As far as introducing invasive species, depends on the source of the compost. A lot of the grasslands are currently annual exotics already.
Sonoma RCD
01:57:51
Thanks Ryan
Valerie Quinto
01:58:03
Ray, we didn’t want to model scenarios that we knew to be impossible due to lack of landowner interest.
Ray Krauss
01:59:01
They won’t own it forever.
Elizabeth Ruiz
02:00:18
How would the gain in cfs from summer flow releases translate into riffle depths?
Elizabeth Ruiz
02:00:35
/how much depth would be gained by the pond releases?
Kit Barron
02:01:00
Would it be possible to save the chat history and share out w/ the rest of the post-presentation materials? I had to reboot and can no longer see the chat history, where a lot of the Q&A took place. thanks!
Sonoma RCD
02:01:27
Kit - Yes the chat history will be included with the video recording
Kit Barron
02:01:34
thanks!
Jennifer Joell
02:04:17
The best recharge areas seem to be in the upper watershed, mostly in the heavily forested areas. did you examine loss of those forests due to vineyard conversions or climate change?
Kimberly Robertson
02:08:14
There is a fade out at the end of many of the statements. The sound starts strong and then I miss the last several words
Jennifer Joell
02:08:48
Please address the importance of the Porter Creek watershed. there is significant rechage area up there. Also your maps show improvement to ripple depths in Mark west creek below the junction of Porter Creek.
Penny Sirota
02:17:13
Do we know about the affect of prescribed burns as a management action - does it have more of an effect on evapotranspiration and infiltration then just thinning work?
Matthew O'Connor
02:21:37
Penny-we don't have any fire effect simulation other than the fuel management scenario that reduces leaf area index. prescribed fire would do something similar
Penny Sirota
02:26:55
Matt - Monan’s Rill is interested in grassland treatment up on our upper meadow - or even Emerald Valley - keep it in mind if its useful for the model. Let me know.
Valerie Zimmer
02:28:51
How easy is it to run a simulation in this model? Does one need to be a full MIKESHE user? Hire OEI?
Ray Krauss
02:29:42
Degree of bedrock factoring not known/considered. Seems that the more bedrock fracturing is present, the more favorable all the modeling outcomes.
Ray Krauss
02:32:28
THANK YOU VERY MUCH. OUTSTANDING!!!
Harriet Buckwalter
02:32:40
Thank you!!!
Sara Press
02:32:41
Thank you!
Penny Sirota
02:32:47
Thank you all! This is going to be a huge help and guide for us going into the future!!!
Rob Pennington
02:32:48
Thank you!
Sierra Cantor
02:32:49
thank you!
Shannon Weese
02:32:57
Thank you!
Jennifer Joell
02:32:57
Thank you!!! Very informative
Bryan McFadin
02:32:59
Great job Jeremy, Matt, Kevin, and crew! Thanks you
Valerie Zimmer
02:32:59
Excellent, thank you!
Sarah Nossaman
02:33:01
Thank you that was fantastic
Doug Bush
02:33:02
Thank you!
Joseph Dillon
02:33:03
thanks