REPORT - Sampling Procedures and Problems in the Determination of Pesticide Residues in the Hydrologic Environment, by H. R. Feltz and J. K. Culbertson May 15, 1972 QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 72.14 Subject: REPORT - Sampling Procedures and Problems in the Determination of Pesticide Residues in the Hydrologic Environment, by H. R. Feltz and J. K. Culbertson In the attached report, Herman Feltz and Jim Culbertson discuss the importance of selecting the proper sampling methods and equipment for studying pesticides in the hydrologic environment. However, considerations dealt with in the report are applicable to sampling for many other water- quality characteristics as well, and the report should prove to be of general interest to all WRD personnel engaged in water-quality investigations. R. J. Pickering Chief, Quality of Water Branch Attachment WRD Distribution: A (Regional Hydrologists only), FO-LS, PO