Tag Archives: WWALS Science Committee

WWALS Summary of FDEP chemical and biological tracers, Withlacoochee and Suwannee Rivers 2020-08-05

Here are the chemical tracer and DNA marker test results by the Florida Department of Environmental Protection (FDEP) that WWALS has frequently mentioned, for example in Current Situation of Water Quality Testing, Suwannee River Basin 2020-08-02.

Below, please also find a summary of those results by WWALS Science Committee Chair Dr. Thomas Potter.

[Human and Ruminant DNA markers]
Human and Ruminant DNA markers

Thanks to Katrina Yancey of FDEP for sending the data, and for acknowledging that FDEP has no objection to WWALS publishing it. I asked FDEP for whatever they wanted to include, and this is what they sent:

“Thank you for asking, we recently set up our new site so it may be helpful to state that more information may be found at DEP’s webpage for the Suwannee River Basin Sampling Locations (https://floridadep.gov/dear/watershed-monitoring-section/content/suwannee-river-basin-sampling-locations).”

The actual data is on the WWALS website.

WWALS Summary of FDEP chemical and biological tracer measurements
on Withlacoochee and Suwannee River samples

Dr. Thomas Potter, WWALS Science Committee Chair

After Continue reading

Send your comment on GA-EPD Valdosta wastewater Consent Order –Albany Herald

In the Albany Herald, May 9, 2020, Deadline set to comment on Valdosta EPD Enforcement Order,

The Enforcement Order includes a fine, plus many requirements for management and technology.

“Well, I’m glad they are doing the enforcement order, requiring them to get the fixes in place,” said Deanna Mericle of Hamilton County, Fla., who was among the WWALS members who met with the city of Valdosta back in 2015 about these same sewage issues. “I’m not sure what the $122,000 will be used for, but the fine seems small. I just want the problem fixed for good if possible.”

The rest of the article is from the WWALS press release.

Send your comments by Wednesday, May 27, 2020, to:
   Mr. Lewis Hays
   Manager, Watershed Compliance
   Environmental Protection Division
   2 Martin Luther King Jr. Drive SE, Suite 1152 East
   Atlanta, GA 30334
   Lewis.Hays@dnr.ga.gov
   404-463-4953

This is not the kind of black water we want:

[Photo 4: Confluence of Sugar Creek and Withlacoochee River.]
Photo 4: Confluence of Sugar Creek and Withlacoochee River. By Tim Bonvechio.

The entire 93-page Order is on the WWALS website, here:
https://wwals.net/pictures/2020-04-13–ga-epd-vld-enforcement-order

“This Order has been a long time coming. It includes an outline of a sad history of mistakes and neglect. I hope the Order Continue reading

Fragility of monoculture agriculture in varying water conditions

They don’t want to say “we don’t know,” but they don’t know. At least they have a working hypothesis about the collapse of the 2017 peanut crop in much of Florida: it has to do with variations in rainfall.

Bob Kemerait, Southeast Farm Press, 22 January 2018, Peanut collapse: Something happened but it’s not clear exactly why,

…For months, University of Florida’s Institute of Food and Agricultural Sciences Extension agents led by Anthony Drew, Mace Bauer and Dee Broughton had been sounding the alarm that an unprecedented collapse of the peanut crop was occurring across large areas of Florida’s production region. Symptoms of this collapse included stunted plants, late-season yellowing and leaves with distinctive marginal leaf necrosis. Where most severe, entire fields wilted in the weeks prior to harvest. Abysmal yields, off by as much as 45 percent, forced some to consider their future in farming if solution could not be found.

During the latter third of the season, Continue reading

Suwannee River: standard for dissolved organic matter

A primary objective of the WWALS Science Committee is to compile published scientific literature for the Suwannee basin. We are doing this using online search engines including the University of Georgia System Galileo program and Google Scholar. Remarkably, our searches have identified thousands of published scientific papers and reports that link to the keyword, “Suwannee”. Examination of many revealed that they describe research using dissolved organic matter isolated from the Suwannee River near Fargo, GA. This is the material that gives the water its special color.


Photo: Richard T. Bryant, in Pamela P. Holliday, Sherpa Guides, unknown date, The State of the Swamp: The Suwannee River Sill and DuPont’s Mining Proposal Grab attention and Concern in the Okefenokee

Digging further Continue reading

Videos: Water, Agriculture, and Forestry; WWALS @ VSU 2017-03-28

You can’t use traditional models for the karst Floridan Aquifer; new and harsher pesticides are expected this summer; but you can help raise native species; and later this month you can go see many of them in Berrien County, plus WWALS monthly outings, the Withlacoochee and Little River Water Trail, and the Alapaha River Water Trail and some WWALS history.

Yeah, 2,4-D and Dicamba are head-scratchers --Tom Potter
Yeah, coming this summer, and they’re head-scratchers.

All this was at the quarterly WWALS public meeting, this one on Water, Agriculture, and Forestry at Valdosta State University, March 28, 2017.

Here are links to each WWALS video of each talk, with a few notes and a few extra pictures, followed by a WWALS video playlist. Continue reading