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ERA's Water Supply studies are guaranteed to comply with all applicable USEPA, NELAC, A2LA, NIST/NVLAP and state-specific requirements.

We offer 12 WS studies per year consisting of Inorganic, Organic and Microbiology analytes.

Additionally, ERA offers quarterly WS Radiochemistry studies.

WatR™Supply (WS) Schedule
Study # Ship Date Your Results to ERA
WS-162 January 11, 2010 February 25, 2010
WS-163 February 8, 2010 March 25, 2010
WS-164 March 8, 2010 April 22, 2010
WS-165 April 5, 2010 May 20, 2010
WS-166 May 10, 2010 June 24, 2010
WS-167 June 7, 2010 July 22, 2010
WS-168 July 6, 2010 August 20, 2010
WS-169 August 9, 2010 September 23, 2010
WS-170 September 7, 2010 October 22, 2010
WS-171 October 4, 2010 November 18, 2010
WS-172 November 5, 2010 December 20, 2010
WS-173 December 6, 2010 January 20, 2011
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RadCheM™ Study Schedule
Study # Ship Date Your Results to ERA
RAD-80 January 11, 2010 February 25, 2010
RAD-81 April 5, 2010 May 20, 2010
RAD-82 July 6, 2010 August 20,2010
RAD-83 October 4, 2010 November 18, 2010
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WS Micro-Only Schedule
Study # Ship Date Your Results to ERA
WS-524 January 18, 2010 January 39, 2010
WS-525 March 15, 2010 March 26, 2010
WS-526 May 17, 2010 May 28, 2010
WS-527 July 12, 2010 July 23, 2010
WS-528 September 13, 2010 September 24, 2010
WS-529 November 12, 2010 November 23, 2010
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