The applicant must show that the modification will not interfere with public water supplies, prevent a balanced population of wildlife and fish, or allow the discharge of toxics posing an unacceptable risk.

• 申请者必须表明，变更须不影响公用水的供应，变更须防止野生动物和鱼类数量的失衡，变更不允许排放能引起风险的有毒物质。