Twenty five times the state limit for Fecal coliform could be a problem. What got into the Alapahoochee River last week?
If you want to help find out what’s getting into our rivers, you can Continue reading
Was there rain Wednesday? That might explain the sudden spikes at US 41 on the Withlacoochee River, at GA 133 on the Little River, and at State Line on the Withlacoochee River. We can guess that the rains Thursday and Friday (today) have washed away whatever that very odd spike was at the state line.
Thanks to Valdosta Utilities and Valdosta City Clerk Teresa Bolden for sending this Wednesday’s Valdosta water quality testing data before the end of Friday. For more contact, see http://wwals.net/issues/vww/.
It’s a very odd spike, because Continue reading
Valdosta’s bacterial counts are always low at State Line Ramp (Mozell Spells), where we moved the WWALS Boomerang paddle race from Georgia to Florida and back.
Things were generally better last week in the Withlacoochee Basin, except for the Little River at GA 133, just above Troupville Boat Ramp. Continue reading
Fecal coliform went down last week to 195 at US 41 and 200 at GA 133 on the Withlacoochee River, right at the Georgia limit of 200 cfu/100 ml, while rising slightly at US 41 and at the GA-FL line at the Madison Highway Horn Ferry Bridge, according to Valdosta’s testing.
Wednesday of this week, we still don’t know, because Continue reading
Once again, as during Hurricane Irma, recent rains are causing flooding on Suwannee River tributaries.
The Withlacoochee River at Skipper Bridge and at US 41 (North Valdosta Road) is in Near Flood Stage, as is the Suwannee River at Fargo, and the New River near Lake Butler.
Already in Minor Flooding are Continue reading
You can see on these maps that the Suwannee River Basin is massively agricultural, except where it’s forestry or swamp or other wetlands. Thus it’s no wonder that most of the nitrate runoff problem here is due to agriculture, as shown in the Basin Management Action Plans (BMAPs).
WWALS Science Committee Chair Tom Potter points to this Global Croplands map to illustrate the BMAP issues. The question remains of whether agricultural best management practices as advocated in the recent BMAP meetings will be sufficient to deal with the problem, considering they haven’t decreased it in the past decade.
Looks like we may finally see Action stage tomorrow on the Withlacoochee River above Valdosta @ Skipper Bridge Road. This is upstream from Valdosta’s Withlacoochee Wastewater Treatment Plant, so it’s a good thing that didn’t spill during Irma. The Alapaha River at Statenville peaked Tuesday and probably would be a fine ride (what shoals?) today. The New and The Santa Fe Rivers are still flooding, and that’s still raising the Suwannee River all the way to the Gulf, and there’s minor flooding all the way up at Fargo, so another surge of high levels may follow on the Suwannee. The I-75 Santa Fe River bridge never did close.
Update 2017-09-15: On the seventh day.
Hurricane Irma flooded the Suwannee River at White Springs, the Santa Fe River especially at Fort White, with a new record for the New River new Lake Butler. It did not flood the Withlacoochee or Alapaha Rivers.
FDOT says the I-75 bridge over the Santa Fe River Continue reading
Update 2017-09-15: On the seventh day.
Hurricane Irma is bringing flood levels on on most of the rivers in the Suwannee River Basin. Here are the gages with projections from downstream to upstream, since Irma is coming from the south. The images here are static to show this moment, but click on any image to go through to the live gage.
Salt water intrusion inland is worse than you think, including the “Apalachicola salinity feature” up to the GA-FL line and east through Lowndes County, with a special additional brackish Valdosta feature. Central north Florida is an island of fresh groundwater surrounded by entire saline Florida coast around from Alabama plus across to Brunswick, GA, then again from Savannah up past Charleston. South of Lakeland, FL the map is all red for saline.
Apparently using the data preliminarily mapped earlier in the Florida Well Salinity Study, geologists from three states connected the dots in Revised Hydrogeologic Framework of the Floridan Aquifer System in Florida and Parts of Georgia, Alabama, and South Carolina, By Continue reading