SITE INFORMATION AND CORRESPONDENCE

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additional monitoring factors must be considered by the Regional Water requirements Regional Water Board in making such findings: Board application toss, etc.). a. The size of a containment zone shall be no Contributions of less than ten — larger than necessary based on the fats of percent meat be accompanied the individual designation. I,-r no event by a detailed justification as to shall the size of a containment zone or the why a lesser contribution cumulative effect of containment zones would provide adequate cause a substantial decline in the overall mitigation, yield storage, or transport capacity of a Except where prohibited by Federal law, ground water basin: Federal agencies may be required, based on b. Evaluation of potentially significant specific site conditions, to implement — impacts to water quality, human health, and mitigation measures; the environment, shall take into f. The proposed management plan must consideration the following, as applicable include a detailed description of the to the specific factual situation: proposed monitoring program, including 1. The physical and chemical the location and construction of monitoring characteristics of the discharge, points, a list of proposed monitoring including is potential for migration: parametersa detailed description of sampling protocols the monitoring 3. The hvdrogeoloeical characteristics of frequency, and the reporting requirements the site and surrounding land; and frequency. The monitoring points 3. The quantity of ground water and must be at or as close as reasonable to the surface water and the direction of boundary of the containment zone so as to ground water flow; clearly demonstrate containment such that water quality obiectives outside the 4. The proximity and withdrawal rates of containment zone are not violated as the ground water users; result of the discharge. Specific monitoring j. The patterns of rainfall in the region points must be defined on a case-by--ase and the proximity of the site to surface basis by determining what is necessary to waters: demonstrate containment, horizontally and vertically. All technical or monitoring 6. The present and probable future yes program requirements and requirements for of ground water and surface water in access shall be designated pursuant to WC - the area; Section 13267. The monitoring progrttm 7. The existing quality of ground water may be modified with the approval of the and surface water, including other Regional Water Board's Executive Officer sources of pollution and their based on an evaluation of monitoring data; cumulative impact on water quality: The management plan must include a 8. The potential for health impacts caused detailed description of the method to be by human exposure to waste used by the discharger to evaluate constituents: monitoring data and a specific protocol for 9, The potential damage to wildlife, actions to be taken in response to evidence — crnnc, vegetation, and physical that water quality objectives have been '-' exceeded outside the containment zone as a structures caused by exposure to waste result of the migration of pollutants from constituents: within the containment zone; 10. The persistence and permanence of any potential adverse effects: 3. In order for a containment zone to be designated. LL Exposure to human or other it shall be limited in vertical and lateral extent; as biological receptors from the aggregate protective as reasonably possible of human health of hazardous constituents in the and safety and the environment; and should not environment; result in violation of water quality objectives outside the containment zone. The following 9