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Amok RCRA Permit - Forward Landfill May 1991 EPA I.D. CAD 990 794 133 Modification 0 (7) The Owner/Operator shall perform sampling and analysis quality assurance and quality con- trol in accordance with the Post Closure . Manual. (8) The Owner/Operator shall determine the lateral and vertical extent of contamination, constituents of the contamination, concentra- tions of each contaminant as necessary to at- tain compliance with the ground water protec- tion standards (background ground water quality per Permit Condition III.2 (b) or ACL's per Permit Condition III.8 during the term of this permit. (h) If the Owner/Operator determines, pursuant to Per- mit Condition III.5, there is a statistically significant increase above the background values for the parameters specified in Permit Condition III.2 (a) , he or she may demonstrate that a source other than a regulated unit caused the increase or that the increase resulted from error in sampling, analysis, or evaluation. In such cases, the Owner/Operator shall: (1) Notify the Director in writing within seven (7) days that he intends to make a demonstra- tion. (40 CFR 264.98 (g) (6) (i) ] (2) Within 90 days, submit a report to the Direc- tor which demonstrates that a source other than a regulated unit caused the increase, or that the increase resulted from error in sampling, analysis or evaluation. [40 CFR 264.98 (g) (6) (ii) ] (3) Within 90 days, submit to the Director an ap- plication for a permit modification to make any appropriate changes to the detection monitoring program at the facility. [40 CFR 264.98 (g) (6) (iii) ] (4) Continue to monitor in accordance with the detection monitoring program at the facility. [40 CFR 264.98 (g) (6) (iv) ] 7. RECORDKEEPING AND REPORTING (a) The owner or operator shall: (1) Keep records of the analyses required in Per- mit Condition III. 1 and III.2, the associated ground water surface elevations required in 25