Agenda - Council - 05/26/1981 - Laserfiche WebLink

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f. Proper preservatives shall be added to the samples in ~he field in accordance with standard EPA practices shown in Table 1. g. Proper holding times shall be followed in accordance with standard EPA practices as shown in Table 1. h. Analytical methods shall be such that the detection limits shown in Table 1 are acheived. i. Standard laboratory quality assurance practives shall be followed as set forth in the EPA'S "Handbook for Analytical Quality Control in Water and Wastewater Laboratories" (1972). Each landfill operator (licensee) shall demonstrate to the .Department, in the annual report, that the required quality assurance and sampling procedures required herein have been followed by their contract laboratory. j. A chain of custody record shall be maintained so ~hat pertinent information about the collection of samples, such as name of sample collector, sampling date and tim~ preservatives, and pertinent information about the analysis of samples such as method used, date analyzed, and name of the analyst can be determined- 14'. If a stream or ditch may be impacted by the site, as determined by the Department, sampling station~ acceptable to the Department shall be established. Samples shall be collected at the summer low flow and analyzed for the prarameters set forth in No. 11 above. PHASE II MONITORING PROGRAM If a statistically significant change in any parameter is measured at a down-gradient well for more than two successive quarters, the monitoring program shall be expanded as set forth below. For purposes of this determination, statistically significant change shall be determined' by the student's - t test as set forth in Appendix IV, page 33257 of the May 19, 1980 Federal Register using all of the data from the up- gradient well and the first three sampling events at the down gradient well as back- ground. 1. The installaiton Of additlonal wells down-gradient of the affected well to track the vertical and horizontal changes in ground water quality. These wells shall be-~constructed and sampled as setforth in the "Phase I Monitoring program" above. - 2. The affected well and the up-gradient'well shall be sampled and analyzed for the parameters set forth in Table 2. 3. Any parameter, from no. 2 above, found to be elevated shall be included in the routine quarterly, sampling at that well until it's significance can be determined. 4. Any effected well included in the "Phase II Monitoring Program" shall annually, in July, be re-sampled and the samples analyzed as setforth in no. 2 above. 5. If a well immediately up gradient from a stream is included in the expanded- monitoring program, routine up steam and down stream sampling shall be included in the quarterly sampling program and as setforth in the Numbers 2, 3, and 4 above.