The hydrographic survey data will be delivered in State Plane Arkansas South, NAD 1983 (2011), US Feet. The data will be delivered in individual files representing each navigation pool (Montgomery Point – Pool 6). Hydrographic survey data will be delivered in text format (.xyz) containing x, y, z referenced to vertical datum NAVD88 (geoid 18), US feet. The water’s elevations are being determined by running levels from gages on the locks that have known elevations to the surface of the water.ĭata is being collected in the field and post-processed in the office. EMC’s field crews are running the hydrographic cross sections from water’s edge to water’s edge. The survey cross sections are being collected at 400ft intervals and at sediment range locationsĮMC is utilizing our 24 to 28-foot hydro vessels equipped with Odom single beam fathometers and Trimble DGPS systems. All Rights Reserved.The Little Rock Corps of Engineers contracted EMC to perform single beam hydrographic surveys on the McClellan-Kerr Arkansas River Navigation System (MKARNS) from navigation mile 0.0 (confluence with the Mississippi River) to navigation mile 125.0 (Downstream approach to Murray Lock & Dam 7). Registered Office: Xylem Analytics UK Ltd., Xylem, 7 Dunham's Court, Dunham's Lane, Letchworth Garden City, England, SG6 1WB, UK. VAT No. VAT No. GB 220 3350 25Īanderaa, Global Water, MJK, Royce Technologies, SonTek, WTW (process products) and YSI (environmental products) are all Xylem brands operating in the UK from Xylem’s Letchworth facility. Registered Office: Bellingham & Stanley Ltd., Xylem, Longfield Road, Tunbridge Wells, Kent, TN2 3EY, UK. Transparency in Supply Chainsīellingham + Stanley, ebro, SI Analytics, OI Analytical, WTW (lab & field products) and YSI (life science products) are all Xylem brands operating in the UK from Xylem’s Tunbridge Wells facility. Read more about this in our Privacy Policy. We use cookies and beacons to improve your experience on our site. Learn more about Xylem and Xylem Analytics. Specifications on all products subject to change at any time.
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