• Table of Contents
  Links to all Information Updates published since 1995.
• Additional Approved Target Analytes for Organic Methods
• Alternative Default Limits (12/05/2006)
• Arizona Data Qualifiers, Rev 3.0 (09/20/2007)
• Arizona Drinking Water Data Qualifiers 10/23/2001 is no longer approved for use as of 10/28/2008. (Please note that as of 10/28/2008, AZ Drinking Water Data Qualifiers have been discontinued, please use Arizona Data Qualifiers Revision 3.0 9/20/2007).
• Calibration Protocol Document (January 2007)
  Developed by the national State Assessors
• Clarifications for Hexavalent Chromium
  Responses to questions concerning hexavalent chromium from the Method Update Rule published March 12, 2007 (72 FR 11200).
• Flexibility to Modify CWA Methods - Automated Methods
  Letter from EPA referencing the Method Update Rule published March 12, 2007 (72 FR 11200) that allows automation of already approved methods under the Clean Water Act.
• Instrument Calibration Policy (07/18/2003 - ADHS policy)
  
• Method 8260B Arizona Vapor Method (04/14/2009)
  VOCs in Vapor by 8260B AZ Method, Revision 0
• Luminescence Measurement of Dissolved Oygen (LDO), Revision 1.0 (April 2008)
  A supplemental guide from EPA Region 9 on HACH Method 10360
• Method 1664 Rev. A EAD Modifications (01/16/2009)
  Method 1664 Rev.A EAD Modifications N-Hexane Extractable Material and Silica Gel Treated N-Hexane Extractable Material by Extraction and Gravimetry. The Engineering and Support Branch, EAD, OST created the following Memo with questions and answers regarding allowable modifications to Method 1664A.
• Method ML525.2 (06/20/2007)
  Determination of Organic Compounds in Drinking Water by Liquid-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry, revision 2.0, 06/20/2007 - Allowance of quadratic fit for calibration.
• Method 8015AZR1 (09/25/1998)
  C₁₀-C₃₂ Hydrocarbons in Soil revision 1.0
• Method BLS-188 (04/09/1991)
  BLS-188 Ethylene Glycol in Wastewater
• Method Checklists (ADHS)
• Method Criteria for 7000B/7010 (02/13/2007)
• Method Criteria for 8000C (02/13/2007)
• Method Modification (Approved 03/05/2008)
• Spiking of Solid Samples (08/05/2010)

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