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The following procedures shall be incorporated in sampling and analysis (S&A) plans submitted pursuant to requests by Regional Board staff: 1. Each waste disposal or storage site at the facility shall be shown on a map or sketch. The history of each site shall be presented, and the wastes discharged or stored at each site shall be listed. 2. An analytical test shall be selected for each waste listed in part 1) . If no test method is available for a particular waste, the probable effect of the lack of a test shall be noted: 3. The sampling plan shall follow procedural methods described in Environmental Protection Agency (EPA) Document SW-846, "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods" , 2nd Edition. Sampling equipment and decontamination procedures selected shall be described for each type of sample collected (surface water, ground water, soil-pore liquid, sediment, sludge, soil, etc. ) . 4 . Sampling strategies shall reflect heterogeneity or stratification of liquid or solid wastes at the site. 5. Sufficient samples shall be collected to characterize the horizontal and vertical distribution of wastes at the site. Points of sample collection shall be shown on a map. For some wastes, and within reasonable time limits, a phased approach to such characterization is acceptable. 6. The sampling and analysis plan shall include quality assurance (QA) and quality control (QC) programs to ensure that sample accuracy (the closeness of a sample value to its true value) and sampling precision (the closeness of repeated sample values) are adequate. If requested by staff, sufficient sample quantity shall be collected to permit sample splits to be prepared. 7 . Well logs shall be provided for wells sampled. If no log is available, the following information shall be provided as necessary to identify the aquifier(s) penetrated by the well . A. date of construction and type of well . B. method of drilling, bore hole diameter, and depth of bore hole. C. casing diameter, method of joining casing sections, and casing depth. D. location (depth) to top and bottom of perforations. E. current depth of well . F. location and description of gravel pack and seals. G. depth to first water (from established reference point) E at time of construction. H. depth to standing water (from established reference point) at time of sampling. I. method and length of time of development.