• sells and provides local support for software used in environmental and water engineering
• provides a selection of technical resources for the benefit of others

Previously known as NTEC Environmental Technology ("NTEC"), GW-SW Pty Ltd resells simulation software, mostly related to groundwater and surface water, to a local market in Australasia.

NTEC's small consulting team, specialising in simulation of hydrological processes and environmental impact assessment, has joined CDM Smith, a leading global consulting, engineering, construction, and operations firm that delivers integrated solutions in water, environment, transportation, energy and facilities. CDM Smith has over 5000 employees and 125 offices worlwide, including locations in Brisbane, Melbourne, Adelaide, Perth and Darwin.

• June 2015: Waterloo Hydrogeologic has released Visual MODFLOW Flex 2015.1, adding support for MODFLOW-NWT, and much more.
• March 2015: The Waterloo Hydrogeologic Division of Schlumberger Water Services has been acquired by Nova Metrix LLC, and has resumed trading as Waterloo Hydrogeologic.
• March 2015: Schlumberger Water Services has released AquiferTest Pro 2015.1, adding support for Neuman-Witherspoon pumping teswt analysis, Dagan slug test analysis, well efficiency plots and more.
• December 2014: Schlumberger Water Services has released AquaChem 2014.2, adding support for Hydro GeoAnalyst 2014.2, WHO water quality standards (2012), amd more.
• October 2014: Schlumberger Water Services has released Hydro GeoAnalyst 2014.2.
• February 2013: For software sales, please contact .
• February 2013: NTEC Environmental Technology is now CDM Smith. For information about consulting services, please contact au-accounts@cdmsmith.com.

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