WATER QUALITY: Analytical Methods - "Permanent Slide Preparation for Aquatic Acari (Water Mites)" by Susan S. Haim December 18, 1974 QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 75.12 Subject: WATER QUALITY: Analytical Methods - "Permanent Slide Preparation for Aquatic Acari (Water Mites)" by Susan S. Haim The attached provisional method describes the anatomical features used for the identification of water mites and procedures for their dissection and mounting for examination under the microscope. Background information on water mites is provided in the introductory section of the method. This method is approved for use within the Water Resources Division. Questions or comments pertaining to the method should be directed to the Chief, Quality of Water Branch (mail stop 412, Reston, Virginia). R. J. Pickering Chief, Quality of Water Branch Attachment WRD Distribution: A, B, FO-LS, PO