On August 31, 2015, U.S. Geological Survey Illinois Water Science Center staff deployed a 2000 kHz side-looking acoustic Doppler velocity meter (ADVM) in the Chicago Sanitary and Ship Canal (CSSC) at the Electric Dispersal Barrier System (EDBS). These data were collected as a fully loaded commercial barge tow traversed the EDBS and passed the ADVM three times, and as several smaller vessels and an unloaded barge tow passed the ADVM. The ADVM was mounted to a rigid 2-inch PVC pipe in compliance with U.S. Army Corps of Engineers (USACE) operational safety protocols for working in or near the EDBS. The pipe with ADVM was lowered 4.5 feet below the water surface on the west (right) bank of the canal at a location approximately 477 feet upstream of the Romeo Road (135th Street) bridge (41.642050, -88.060383). The pipe was mounted to the walkway guard rail in a vertical orientation. An upstream and downstream guide line were used to provide additional tension to prevent movement or vibration on the PVC pipe. In this deployment configuration, the ADVM was profiling from the right wall of the canal out towards the center of the channel. ADVM data were viewed in real-time on a laptop computer during the deployment and logged simultaneously to the internal memory of the ADVM. The ADVM data were downloaded from the ADVM to a laptop computer while on site and reviewed briefly while in the field. Upon return to the USGS Illinois Water Science Center the ADVM data were downloaded from the field laptop and reviewed following standard USGS data quality assurance protocols.

On August 31, 2015, U.S. Geological Survey Illinois Water Science Center staff deployed a 2000 kHz side-looking acoustic Doppler velocity meter (ADVM) in the Chicago Sanitary and Ship Canal (CSSC) at the Electric Dispersal Barrier System (EDBS). These data were collected as a fully loaded commercial barge tow traversed the EDBS and passed the ADVM three times, and as several smaller vessels and an unloaded barge tow passed the ADVM. The ADVM was mounted to a rigid 2-inch PVC pipe in compliance with U.S. Army Corps of Engineers (USACE) operational safety protocols for working in or near the EDBS. The pipe with ADVM was lowered 4.5 feet below the water surface on the west (right) bank of the canal at a location approximately 477 feet upstream of the Romeo Road (135th Street) bridge (41.642050, -88.060383). The pipe was mounted to the walkway guard rail in a vertical orientation. An upstream and downstream guide line were used to provide additional tension to prevent movement or vibration on the PVC pipe. In this deployment configuration, the ADVM was profiling from the right wall of the canal out towards the center of the channel. ADVM data were viewed in real-time on a laptop computer during the deployment and logged simultaneously to the internal memory of the ADVM. The ADVM data were downloaded from the ADVM to a laptop computer while on site and reviewed briefly while in the field. Upon return to the USGS Illinois Water Science Center the ADVM data were downloaded from the field laptop and reviewed following standard USGS data quality assurance protocols.

In 2017, the U.S. Fish and Wildlife Service, U.S. Geological Survey, and U.S. Army Corps of Engineers undertook a large-scale interagency field study to determine the influence of commercial barge vessels on the efficacy of the Electric Dispersal Barrier System (EDBS) in the Chicago Sanitary and Ship Canal (CSSC) in preventing fish passage. This study included a series of trials in which a tow, consisting of a tug vessel and fully-loaded barges, transited the EDBS in both upstream-bound (n = 65) and downstream-bound (n = 66) directions. Wall-mounted velocity probes were located at (41.6423629, -88.060329). The configuration of the barges for each run, and the time at which the bow and stern of the tow pass the wall-mounted velocity probes are provided in this Comma Separated Value (CSV) file.

In 2017, the U.S. Fish and Wildlife Service, U.S. Geological Survey, and U.S. Army Corps of Engineers undertook a large-scale interagency field study to determine the influence of commercial barge vessels on the efficacy of the Electric Dispersal Barrier System (EDBS) in the Chicago Sanitary and Ship Canal (CSSC) in preventing fish passage. This study included a series of trials in which a tow, consisting of a tug vessel and fully-loaded barges, transited the EDBS in both upstream-bound (n = 65) and downstream-bound (n = 66) directions. Wall-mounted velocity probes were located at (41.6423629, -88.060329). The configuration of the barges for each run, and the time at which the bow and stern of the tow pass the wall-mounted velocity probes are provided in this Comma Separated Value (CSV) file.

This is a Data Release containing conductivity and water temperature data for selected springs in the headwaters of the Potomac River basin. This work is supported by USGS Chesapeake Bay studies.

This is a Data Release containing conductivity and water temperature data for selected springs in the headwaters of the Potomac River basin. This work is supported by USGS Chesapeake Bay studies.

In 2017, the U.S. Fish and Wildlife Service, U.S. Geological Survey, and U.S. Army Corps of Engineers undertook a large-scale interagency field study to determine the influence of commercial barge vessels on the efficacy of the Electric Dispersal Barrier System (EDBS) in the Chicago Sanitary and Ship Canal (CSSC) in preventing fish passage. This study included a series of trials in which a tow, consisting of a tug vessel and fully-loaded barges, transited the EDBS in both upstream-bound (n = 65) and downstream-bound (n = 66) directions. The U.S. Geological Survey measured velocity profiles during these trials using a SonTek Argonaut SW 3000 kHz acoustic Doppler velocity meter (SW) and a wall-mounted 600 kHz Teledyne RD Instruments Channel Master horizontal acoustic Doppler current profiler (CM) mounted on the west canal wall. The wall mounted instruments were located at the following WGS84 coordinates: (41.6423629, -88.060329). Velocity measurements for each run are included in this data release as comma separated value files. The configuration of the barges for each run and the time at which the bow and stern of the tow passes the velocity probes is provided in 2017_Run_Information.csv. The wall-mounted instrument setup used during this study was the same wall-mounted instrument setup used by LeRoy et al. (2016) in August 2016. For a diagram and photograph of the instrument setup used by LeRoy et al. (2016) (the same setup used herein), the reader is referred to Figures 1 and 2 of Davis et al. (2017). LeRoy, J.Z., Jackson, P.R., and Engel, F.L. (2017), Velocity profiling at the US Army Corps of Engineers Electric Dispersal Barrier in the Chicago Sanitary and Ship Canal during passage of fully loaded commercial tows: U.S. Geological Survey data release, https://doi.org/10.5066/F7K35RTP. Davis, J.J., LeRoy, J.Z., Shanks, M.R., Jackson, P.R., Engel, F.L., Murphy, E.A., Baxter, C.L, Trovillion, J.C., McInerney, M.K., Barkowski, N.A. (2017), Effects of tow transit on the efficacy of the Chicago Sanitary and Ship Canal Electric Dispersal Barrier System. J. Great Lakes Res., 43, 1119-1131. http://dx.doi.org/10.1016/j.jglr.2017.08.013

In 2017, the U.S. Fish and Wildlife Service, U.S. Geological Survey, and U.S. Army Corps of Engineers undertook a large-scale interagency field study to determine the influence of commercial barge vessels on the efficacy of the Electric Dispersal Barrier System (EDBS) in the Chicago Sanitary and Ship Canal (CSSC) in preventing fish passage. This study included a series of trials in which a tow, consisting of a tug vessel and fully-loaded barges, transited the EDBS in both upstream-bound (n = 65) and downstream-bound (n = 66) directions. The U.S. Geological Survey measured velocity profiles during these trials using a SonTek Argonaut SW 3000 kHz acoustic Doppler velocity meter (SW) and a wall-mounted 600 kHz Teledyne RD Instruments Channel Master horizontal acoustic Doppler current profiler (CM) mounted on the west canal wall. The wall mounted instruments were located at the following WGS84 coordinates: (41.6423629, -88.060329). Velocity measurements for each run are included in this data release as comma separated value files. The configuration of the barges for each run and the time at which the bow and stern of the tow passes the velocity probes is provided in 2017_Run_Information.csv. The wall-mounted instrument setup used during this study was the same wall-mounted instrument setup used by LeRoy et al. (2016) in August 2016. For a diagram and photograph of the instrument setup used by LeRoy et al. (2016) (the same setup used herein), the reader is referred to Figures 1 and 2 of Davis et al. (2017). LeRoy, J.Z., Jackson, P.R., and Engel, F.L. (2017), Velocity profiling at the US Army Corps of Engineers Electric Dispersal Barrier in the Chicago Sanitary and Ship Canal during passage of fully loaded commercial tows: U.S. Geological Survey data release, https://doi.org/10.5066/F7K35RTP. Davis, J.J., LeRoy, J.Z., Shanks, M.R., Jackson, P.R., Engel, F.L., Murphy, E.A., Baxter, C.L, Trovillion, J.C., McInerney, M.K., Barkowski, N.A. (2017), Effects of tow transit on the efficacy of the Chicago Sanitary and Ship Canal Electric Dispersal Barrier System. J. Great Lakes Res., 43, 1119-1131. http://dx.doi.org/10.1016/j.jglr.2017.08.013

Measurements of Electrical Conductivity at 25 Degrees Celsius collected at Friant-Kern Canal At Pond Road Mile Post 122. Currently collected twice a year, previously collected quarterly. Access further information for this data set by contacting Bureau of Reclamation, California-Great Basin Region, Environmental Affairs Division (CGB-157). See ResultAttributes for STAFF_GAUGE, SMPL_DEPTH, SMPL_CATEGORY_NAME, METHOD_CODE, RESULT_RL, RESULT_RL-UNIT_STD_NAME, RESULT_MDL, RESULT_MDL-UNIT_STD_NAME, USBR_QA_SUBTYPE_NAME, USBR_QULFR_DESCRIPTION. STAFF_GAUGE is the water height in decimal feet measured by gauge (e.g., 15.2). SMPL_DEPTH is the vertical depth at which sample is collected (e.g., 0 - 15 cm). For water samples: depth below water/air interface. For sediment and soil samples: depth below water/solid or air/solid interface. SMPL_CATEGORY_NAME is the category type of sample (e.g., Composite). METHOD_CODE is the name of method used to obtain result (e.g., EPA 200.8). RESULT_RL is the result reporting limit (accounting for dilution) (e.g., 0.02). RESULT_RL-UNIT_STD_NAME is the unit associated with RESULT_RL (e.g., mg/L). RESULT_MDL is the result method detection limit (e.g., 0.007). RESULT_MDL-UNIT_STD_NAME is the unit associated with RESULT_MDL (e.g., mg/L). USBR_QA_SUBTYPE_NAME is the quality control type of the sample (e.g., USBR_BLANK_SPIKE). USBR_QULFR_DESCRIPTION is the quality assurance description (if any) (e.g., Result may have a high bias.).

This dataset was generated during the precision testing of three water-quality sondes before picking one to use for field deployment of high frequency ground-water quality monitoring. Precision is important because the authors wanted to try and minimize calibration drift corrections between site visits. A laboratory experiment was conducted for the three sondes to simultaneously measure at hourly intervals with a setup of standard solution circulating past the sondes to simulate field conditions. The electrical conductivity experiment lasted 33 hours, the pH experiment lasted 13 hours, and the DO experiment failed (no data).