USGS South Atlantic Water Science Center

Happy 147th birthday to us! 🎉 We know, we know...we don’t look a day over 146 — but hey, that’s super young in geologic time! Mapping, measuring, and discovering since 1879. 🌎 #Freedom250 #America250

Data from 110 stream sites make up the USGS National Water Quality Network (NWQN). Streamflow and water-quality data are used to assess water-quality conditions at streams across the US. Altamaha River, Everett City, GA. 📸SAWSC Hydrologist Chris Henry. ow.ly/vT8n50XYfWS.

SAWSC Hydrologic Technician Sarah Chamblee took this beautiful photo while servicing the USGS recorder at W Branch Cooper R, Moncks Corner, SC. ow.ly/zEOB50XWqxC #FieldPhotoFriday #USGSRecorders

Free Webinar today! Big changes are coming soon to NWISWeb websites and services. Attend our webinar, January 15, 2026 at 2:00 PM EST, to learn about the impacts. Learn more about our modernization plans and timeline. Join here: ow.ly/zhQu50XWZpp

SAWSC Hydrologic Technician Sarah Chamblee observed a mink while servicing her site at Nancy Creek, West Wesley Road, Atlanta, GA. This little guy looks very busy! ow.ly/HAkp50XWsbN 🤝#cityofatlanta

SAWSC Hydrologic Technician Rachel Bonafilia attaches the boat to the trailer after servicing the recorder on the tidally influenced Ashley River near North Charleston, SC. Photo by Sarah Chamblee. #dataTypeId=continuous-00065-0&period=P7D&showFieldMeasurements=true" target="_blank" rel="nofollow noopener">waterdata.usgs.gov/monitoring-loc… #techtuesday #hydrology

Our #1 post of 2025: SAWSC is back! This morning our Hydrologic Technicians hit the ground running - calibrating equipment and getting vehicles ready to head to the field to check their sites. usgs.gov/centers/sawsc

Top 6 posts of 2025. #2: SAWSC Hydrologic Technicians Delaney Falcon (pictured) and Sarah Chamblee 📸 collected discharge measurements on Suwanee Creek, Suwanee, GA. Delaney used a slingshot to get the rope to the other side! ow.ly/wCof50XQsXE. #ADCP #Streamflow

Top 6 posts of 2025. #3: SAWSC Hydrologic Technician Sarina Little demonstrated groundwater data collection during a lecture for an environmental technology class at NC State. Students explored groundwater hydrology and gained hands-on experience. ow.ly/Vxkl50XQsVp.

Top 6 posts of 2025. #4: It's #NationalGroundwaterAwarenessWeek! In the Atlantic Coast region (GA, SC, NC, and VA), more than 1,700 million gallons of groundwater are used per day (ow.ly/GuLW50XQsNR). The #SAWSC collects data from 260 sites (ow.ly/knwE50XQsNP).

Top 6 posts of 2025. #5: Happy National Lighthouse Day! SAWSC Hydrologic Technician Ryan Rasmussen 📸 captured this lighthouse on Lake Mattamuskeet while sampling near Fairfield, NC. ow.ly/SscP50XQsM4. 🤝 ow.ly/SRZh50XQsMa and ow.ly/s7IW50XQsM6.

Top 6 posts of 2025 Post 6. #SAWSC #HydrologicTechnician Michael Hamrick collects discrete water-quality samples at the Chattahoochee R. near Whitesburg, GA (ow.ly/qEvg50XQsIv) for the National Water Quality Network (NWQN). 📸 Chris Henry. #NWQN #TechTuesday

Some new year's resolutions from USGS SAWSC. Check hydrologic data before going to a river, ow.ly/LzFc50XQsEW. Look at the USGS HIVIS cameras often, ow.ly/hEEz50XQsEU. Always report an earthquake, ow.ly/BGQt50XQsES. Hae a safe and happy New Year's Eve!🎇🌅

🐕Bonnie--the most faithful site dog ever. For 15 years Bonnie has greeted and escorted 3 different technicians to ensure they make it safely to the USGS gage at KILLIAN CREEK NEAR MARIPOSA, NC. 📸 Laura Lapolice. #TechTuesday ow.ly/OTGW50XNQxZ

🌛Are there rare earth elements (REEs) on the moon? According to a new USGS Fact Sheet, detailed analysis of rocks collected by Apollo astronauts show that some small fragments have relatively high concentrations of REEs. Read the Fact Sheet at ow.ly/L6a150XNQ1h. #REEs

🌅Here's another beautiful view of the Altamaha River at sunset. This site is part of the USGS National Water Quality Network, ow.ly/YhlN50XNRBA. It's almost like the sun is setting on 2025. Happy #FieldPhotoFriday. Photo by Chris Henry, USGS.

Happy Holidays from the USGS SAWSC! Enjoy time with loved ones and maybe even some time on one of our beautiful rivers. Remember to check the flow before you go! ow.ly/8gtU50XMMHf

This butterfly took a rest on an acoustic doppler current profiler as SAWSC Hydrologic Technician Sarah Chamblee 📸 prepared to collect discharge measurements on Honey Creek near Conyers, GA. See the data at ow.ly/afHi50XMMEQ. With Rockdale County, GA. #WildlifeWednesday

SAWSC Hydrologic Technicians Delaney Falcon (pictured) and Sarah Chamblee 📸 collected discharge measurements on Suwanee Creek, Suwanee, GA. They used a slingshot to get the rope to the other side of the creek. ow.ly/hbLF50XMMrZ. #TechTuesday

🌎We had seismic activity in all three states in the SAWSC area in November, including two earthquakes within the past week. See the real-time earthquake map at ow.ly/aSYg50XMINA. Don't forget, if you feel it, report it at ow.ly/lsNo50XMINx. #Earthquakes #SAWSC