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10/2/2024
WT Staff
 Drinking water comments, questions or concerns? Give us a call at 877-52-WATER (877-529-2837), or email us at info@wtla.us
October 2, 2024 1059 am CDT
Amite, Comite, Tickfaw and Tangipahoa Rivers running below normal in Region 7 watershed
Streamflow Situation from the network of USGS streamflow gauges in Louisiana
Below normal streamflows gathering in Region 7 watershed, east Louisiana midweek. The Comite, Amite, Tickfaw and Tangipahoa River are all recorded at below seasonal normal level this hour. Region 3 has even lower water volume, Chemin-a-haut Bayou, Bayou Macon, Boeuf River and Tensas River all recorded below the tenth percentile, these are in the top 10 lowest water levels recorded on this date in the 25 to 85 year history of water level measuring at these sites. Streamflows continue mostly normal in the west, a couple of lower, slower runs through Region 5 impacting Acadia and Evangeline Parishes, likely still in a drought rating. USGS is undergoing maintenance on their system, the drought map is currently unavailable. No flooding or high flows, no extreme low flows 1st percentile recorded as of this report.
WT HAB Tracker from the satellite monitoring program of National Centers for Coastal Ocean Science (NCCOS)
The latest image of Lake Pontchartrain and the southeast water bodies is dated Oct 1, a strangely blacked out image, the view to water seems clear however the lakes all appear uniformly black with no HAB activity anywhere. The prior image Sep 30 was partially cloud obscured view of the southeast water bodies taken at wind speed 4.3 mph. HAB activity was at that time widespread in the middle of Lake Pontchartrain at a low concentration 75 thousand cells per ml. Lake Maurepas was mostly cloud obscured that day, no HAB activity noted in the open water in the north. Lac des Allemands appeared with a large localized HAB on the east shore, 100 thousand cells per ml. Bayou Fortier was cloud obscured. Lake Cataouache and Lake Salvador were both cloud obscured, no HAB activity noted in the prior image Sep 29. Lakes Verret and Palourde were completely cloud obscured in the Sep 30 image. The previous image Sep 29 showed Lake Verret widespread HAB in the south of the water body at high concentration 800 thousand to 1 million cells per ml. Lake Palourde widespread HABs had at that time settled into the north half of the water body matching concentration color scale for 800 thousand cells per ml. Black Bay widespread HAB was visible in the Sep 30 image, high concentration 900 thousand cells per ml. See the latest satellite image of southeast LA water bodies, here.
Safe Drinking Water Advisories
Morehouse Parish: Bastrop Water System issued a BWA Monday for residents on Manchester Road, Claude Mann Road, and the portion of Old Bonita Road between Claude Mann Road and the Jones Cut Off Road. Bastrop Water serves 18,105 customers from a groundwater source.
Caddo Parish: Blanchard Water System issued a boil water advisory following a water main break Monday. Customers are asked to limit water usage until repairs are complete and the advisory has been lifted. Blanchard Water System supplies 15,882 residents from surface water sourced in Caddo Lake, watershed Region 1.
Caddo Parish: Shreveport Department of Water & Sewage issued a precautionary boil advisory following pump failure at a booster station serving the Southeast Pressure Zone on Friday. Shreveport Water is an EPA Enforcement Priority with significant SDWA violations in 7 of the last 12 quarterly reporting cycles. Shreveport supplies drinking water to 201,000 residents from a surface water source, Cross Lake. EPA Serious Violator List for Louisiana, here.
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