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Development and application of the incident command tool for drinking water protection
Author(s) -
Samuels William B.,
Bahadur Rakesh,
Ziemniak Christopher,
Amstutz David E.
Publication year - 2015
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12097
Subject(s) - environmental science , streams , hydrology (agriculture) , contamination , tracing , upstream (networking) , geological survey , scale (ratio) , dispersion (optics) , engineering , geology , computer science , geography , cartography , telecommunications , physics , computer network , ecology , geotechnical engineering , optics , biology , operating system , paleontology
The I ncident C ommand T ool for D rinking W ater P rotection ( ICW ater) provides real‐time assessments of the travel and dispersion of contaminants in streams and rivers. It is structured around the RiverSpill model which has been enhanced to make use of the 1:100 000 scale N ational H ydrography D ataset P lus, Version 1.0 ( NHDP lus V 1). NHDP lus V 1 is a hydrologically connected river network that contains over 3 million reach segments in the U nited S tates. This allows for both downstream and upstream tracing (which serves in forensic analysis). Mean flow and velocity have been calculated by the US Geological Survey ( USGS ) and Environmental Protection Agency ( EPA ) for each reach. These mean values are updated by flow from web accessible real‐time gauging stations. Example databases available within ICW ater include: dams, reservoirs, water supplies, gauges, municipal and industrial dischargers and transportation networks. A contaminant database is also included which identifies biological, chemical and radiological contaminants and their toxicities. Navigating the river network upstream coupled with mass‐balance calculations from breakthrough curves allows for backtracking of the contamination to determine the origin and source strength.