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Joined: Jun 2011
Posts: 124
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Joined: Jun 2011
Posts: 124 |
Kelly, I found Catmandoo's post thought provoking: Cody's comments really have me concerned. Some of you might remember my efforts to clean the edges of my pond during last year's drought.
and After reading the posts above, I now have a fear that there are hundreds of pounds of copper products in the bottom of my pond.
If so, what do I do now? I believe he was referring to these comments: Some sediment chemistries can cause short term redissolving of bound copper depending on conditions
and Lots of scientific info is available on the fate of Cu and other heavy metals in the environment. Cu is on the hazardous chemical list for at least three gov agencies. Its use in lakes and ponds as an algacide has been banned in several states with probably more states to follow suit as more scientific information becomes available. Since dredging an entire pond seems to beyond the scope for most, I was wondering if keeping the "alkalinities" at or above 300ppm (per Miss U) through the addition of Ag Lime(?) would be reasonable (ie., the Cu that is present "deactivated")?
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Joined: Jun 2011
Posts: 124
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Joined: Jun 2011
Posts: 124 |
Bill- Great resource -Miss U was the easy reader version!  Seriously, though, a good read.
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Joined: Apr 2002
Posts: 15,158 Likes: 493
Moderator
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Field Correspondent Lunker
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Moderator
Ambassador
Field Correspondent Lunker
Joined: Apr 2002
Posts: 15,158 Likes: 493 |
I don't think the alkalinities have to be as high as 300ppm(mg/L) to keep sediments saturated with Cu to a minimum. Well oxygenated conditions at the sediment water interface and alk at above 125mg/L IMO would do pretty good at Cu suppression. I am not a chemist but did play one on PBoss Forum.
Last edited by Bill Cody; 09/04/11 02:28 PM.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management
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Joined: Jan 2006
Posts: 16,068 Likes: 280
Moderator Lunker
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Moderator Lunker
Joined: Jan 2006
Posts: 16,068 Likes: 280 |
Give Miz Cody's boy an Academy Award for his acting.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
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Moderated by Bill Cody, Bruce Condello, catmandoo, Chris Steelman, Dave Davidson1, esshup, ewest, FireIsHot, Omaha, Sunil, teehjaeh57
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BG sex?
by tim k - 05/12/24 07:01 AM
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