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1/3/2024
WT Staff
HAPPENING NOW
Region 7 drought escalates
Slidell BWA
Water news for Wednesday, January 3, 2024 - last updated 106 pm CST
Boil Water Advisories:
Slidell issued a precautionary BWA yesterday following a water main repair and resulting loss of pressure. Customers connecting at 1019 – 1040 St. Mary Street are impacted by the order until further notice.
Refer to yellow tags on the map for more BWAs in effect in the state of Louisiana. Also see the latest EPA Safe Drinking Water Act list of Serious Violators under the SDWA button to the right of the map.
Streamflow Situation from USGS real time streamflow monitoring stations around the eight watersheds of the state
Extreme low streamflows continue statewide, twelve stations remain in low flow status midweek: 3 in Region 3, 7 in Region 4 and 2 in Region 7.
See the red-brown tags on the map for the low flow details.
Drought Map from USGS 7-day average streamflows compared to historic averages
The west half of Region 7 shifted from below normal status yesterday to moderate hydrologic drought Wednesday following an extended period of low streamflows upstream. East and West Feliciana, the west side of St Helena, all of Pointe Coupee, East and West Baton Rouge and Livingston Parishes are wearing the moderate drought colors today. Tangipahoa River channel still bears the bright red mark of the most extreme drought on the scale.
Region 2 Grant and LaSalle Parishes remain steeped in severe drought, with two areas of extreme drought still registering upstream in Region 3. The extreme rated area includes both sides of Tensas River, extending downstream to the northeast Catahoula Parish line.
In Region 1, all surface area is now drought-rated with no exceptions. The majority of Region 1 area is rated below normal broken by two areas of moderate drought along Bayou Pierre and along the Saline Bayou channel.
In Region 7, all area outside the Tangipahoa River watershed is rated below normal, excepting only the east side of Washington Parish, the one part of Region 7 unrated on the drought map.
Watershed regions 6 and 8 remain clear of the drought map, unrated.
Watersheds Region 4 and 5 persist in severe drought in all but Evangeline and Acadia Parishes, which have dropped bacvk into moderate drought after a brief turn below normal.
Note WaterToday reports day-to-day changes recorded by USGS streamflow monitors on rivers and tributaries located in Louisiana, along with monitors upstream in the Mississippi River basin: Ohio, Georgia and southwest New York state. USGS creates a drought map from 7-day average streamflow readings, by comparing the average with the historic weekly normal flow value for each location. The drought ratings are below normal, moderate hydrologic drought, severe drought and extreme drought.
HABs Report from National Centers for Coastal Ocean Science (NCCOS) satellite monitoring program
NCCOS image captured Jan 2 is mostly clear, taken at a high wind speed 14.5 mph. Lake Pontchartrain has open water HAB at midlake. The following interpretations are made based on the Dec 30 image:
Lake Maurepas appears clear of HAB activity. Lake Verret and Lake Palourde blooms are not visible in this latest image, possibly due to the wind submerging the HABs seen there within the last week. Lac des Allemands and Bayou Fortier show up with the same open water bloom activity spotted Dec 30, concentration under 500 thousand cells per 100 ml. Lake Cataouache and Lake Salvador appear free of HABs in this capture. Lake Lery and the Black Bay waterbodies show HABs under 500 thousand cells per 100 ml. Check back daily for our interpretation of the latest satellite image of the southeast water bodies.
Note about hazardous spill incident reporting, from LDEQ: Information contained in the Field Interview form is the preliminary observation of the inspector. This should not be construed as a final determination of LDEQ, its officers or personnel as to any matter, including compliance or non-compliance with statutes, regulations and permits.
Each day of non-compliance is considered a separate violation of the Louisiana Environmental Quality Act.
See the pink tags on the map with the watershed layer turned on, showing the potential impact zone of hazardous spills in the environment. Refer to the Spills button on the right of the map for more incident reports filed this year.
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