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(2) Within 15 days after the notification under Item 3(d) (1) , <br /> the owner or operator shall develop and submit to the <br /> California Regional Water Quality Control Board for approval <br /> a specific plan, based on the outline required under Item 3(a) <br /> and certified by a qualified geologist or geotechnical engineer, <br /> for a ground-water quality assessment program at the facility. <br /> (3) The plan to be submitted under Item 3(d) (2) shall specify: <br /> (I ) The number, location, and depth of wells; <br /> (H) Sampling and analytical methods for those hazardous <br /> wastes or hazardous waste constituents in the facility; <br /> (iii) Evaluation procedures, including any use of previously <br /> gathered ground-water quality information; and <br /> (iv) A schedule of implementation. <br /> (4) The owner or operator shall implement the ground-water quality <br /> assessment plan which satisfies Item 3(d) (3) , and, at a <br /> minimum, determine: <br /> (i) The rate and extent of migration of the hazardous waste <br /> or hazardous waste constituents in the ground water; and <br /> (ii) The concentrations of the hazardous waste or hazardous <br /> waste constituents in the ground water. <br /> (5) The owner or operator shall make the first determination under <br /> Item 3(d) (4) as soon as technically feasible, and, within 15 <br /> days after that determination, submit to the California <br /> Regional Water Quality Control Board a written report containing <br /> an assessment of the ground-water quality. <br /> (6) If the owner or operator determines, based on the results of <br /> the first determination under Item 3(d) (4) , that no hazardous <br /> waste or hazardous waste constituents from the facility have <br /> entered the ground water, the indicator evaluation program <br /> described in Item 2 and Item 3(b) shall be reinstated. When <br /> the owner or operator reinstates the indicator evaluation <br /> program he shall notify the California Regional Water Quality <br /> Control Board in the report submitted under Item 3(d) (5) . <br /> (7) If the owner or operator determines, based on the first determi- <br /> nation under Item 3(d) (4) , that hazardous waste or hazardous <br /> waste constituents from the facility have entered the ground <br /> water, then: <br />