观音寺新泵站工程环境影响报告书

观/r/n音寺新泵站工程/r/n环/r/n境影响报告书/r/n编/r/n制单位：常德市双赢环境咨询服务有限公司/r/n编制日期/r/n：/r/n2022/r/n/r/n年/r/n/r/n9/r/n/r/n月/r/n/r/n1/r/n/r/n概述/r/n /r/n-1-/r/n/r/n1.1/r/n项目背景/r/n /r/n-1/r/n-/r/n/r/n1.2/r/n评价过程/r/n /r/n-2/r/n-/r/n/r/n1./r/n3/r/n/r/n主要环境问题及环境影响/r/n /r/n-4-/r/n/r/n1/r/n./r/n4/r/n评价主要结论/r/n /r/n-5-/r/n/r/n2/r/n/r/n总则/r/n /r/n-6-/r/n/r/n2/r/n./r/n1/r/n编制依据/r/n /r/n-6-/r/n/r/n2/r/n.1.1/r/n环境保护有关法律法规/r/n /r/n-6-/r/n/r/n2.1.2/r/n地方法规、规划/r/n /r/n-7/r/n-/r/n/r/n2.1.3/r/n导则及技术规范/r/n /r/n-8/r/n-/r/n/r/n2/r/n.1.4/r/n相关文件、技术资料/r/n /r/n-8-/r/n/r/n2/r/n./r/n2/r/n评价因子与评价标准/r/n /r/n-8-/r/n/r/n2/r/n.2.1/r/n环境影响因素的识别/r/n /r/n-8-/r/n/r/n2.2.2/r/n评价因子的筛选/r/n /r/n-9/r/n-/r/n/r/n2/r/n./r/n2.3/r/n环境质量标准/r/n /r/n-10-/r/n/r/n2./r/n2/r/n.4/r/n污染物排放标准/r/n /r/n-11-/r/n/r/n2/r/n.3/r/n评价等级及评价范围/r/n /r/n-12-/r/n/r/n2/r/n./r/n3.1/r/n大气环境影响评价等级与范围/r/n /r/n-12-/r/n/r/n2./r/n3/r/n.2/r/n地表水环境影响评价等级与范围/r/n /r/n-12-/r/n/r/n2./r/n3/r/n.3/r/n地下水环境影响评价等级与范围/r/n /r/n-13-/r/n/r/n2/r/n./r/n3.4/r/n声环境影响评价等级与范围/r/n /r/n-14-/r/n/r/n2/r/n./r/n3.5/r/n生态环境影响评价等级与范围/r/n /r/n-15-/r/n/r/n2/r/n.3.6/r/n土壤环境评价等级与范围/r/n /r/n-15-/r/n/r/n2/r/n.4/r/n主要环境保护目标/r/n /r/n-15-/r/n/r/n3/r/n建设项目概况/r/n /r/n-18-/r/n/r/n3/r/n.1/r/n项目概况/r/n /r/n-18-/r/n/r/n3/r/n./r/n2/r/n项目选址及周边环境概况/r/n /r/n-18-/r/n/r/n3.3/r/n建设内容及规模/r/n /r/n-19/r/n-/r/n/r/n3/r/n.4/r/n总平面布置/r/n /r/n-23-/r/n/r/n3/r/n./r/n5/r/n项目建设方案/r/n /r/n-25-/r/n/r/n3.5.1/r/n工程任务/r/n /r/n-25/r/n-/r/n/r/n3.5.2/r/n工程规模/r/n /r/n-25/r/n-/r/n/r/n3.5.3/r/n工程等级及设计标准/r/n /r/n-26/r/n-/r/n/r/n3/r/n.5.4/r/n主要建筑物/r/n /r/n-26-/r/n/r/n3/r/n./r/n5.5/r/n机电及金属结构/r/n /r/n-28-/r/n/r/n3/r/n./r/n6/r/n工程占地及征地拆迁情况/r/n /r/n-30-/r/n/r/n3/r/n.7/r/n劳动定员/r/n /r/n-30-/r/n/r/n3/r/n.8/r/n施工组织及施工方案/r/n /r/n-30-/r/n/r/n3.8.1/r/n工程条件/r/n /r/n-30/r/n-/r/n/r/n3/r/n.8.2/r/n清淤施工方式及处置方式/r/n /r/n-31-/r/n/r/n3/r/n.8.3/r/n土石方平衡/r/n /r/n-31-/r/n/r/n3/r/n.8.4/r/n施工导流/r/n /r/n-31-/r/n/r/n3/r/n.8.5/r/n基坑防渗及经常期排水/r/n /r/n-32-/r/n/r/n3/r/n./r/n8.6/r/n主体工程施工/r/n /r/n-32-/r/n/r/n3/r/n.8.7/r/n施工进度/r/n /r/n-33-/r/n/r/n4/r/n工程分析/r/n /r/n-34-/r/n/r/n4.1/r/n施工期污染源/r/n /r/n-34/r/n-/r/n/r/n4/r/n.1.1/r/n构筑物拆除工程污染源/r/n /r/n-34-/r/n/r/n4/r/n.1.2/r/n构筑物新建工程污染源/r/n /r/n-35-/r/n/r/n4.2/r/n营运期污染源/r/n /r/n-39/r/n-/r/n/r/n4.2.1/r/n水环境/r/n /r/n-39-/r/n/r/n4./r/n2/r/n.2/r/n噪声/r/n /r/n-40-/r/n/r/n4/r/n.2.3/r/n固体废物/r/n /r/n-42-/r/n/r/n4.3/r/n污染源强统计/r/n /r/n-42/r/n-/r/n/r/n5/r/n/r/n环境现状调查与评价/r/n /r/n-45-/r/n/r/n5/r/n.1/r/n自然环境/r/n /r/n-45-/r/n/r/n5.1.1/r/n地理位置/r/n /r/n-45/r/n-/r/n/r/n5.1.2/r/n地形、地貌、地层岩性/r/n /r/n-45/r/n-/r/n/r/n5.1.3/r/n气候气象/r/n /r/n-46/r/n-/r/n/r/n5.1.4/r/n水文水系/r/n /r/n-47/r/n-/r/n/r/n5.1.5/r/n生态环境/r/n /r/n-48/r/n-/r/n/r/n5.1.6/r/n沅水鼎城段褶纹冠蚌国家级水产种质资源保护区/r/n /r/n-48/r/n-/r/n/r/n5./r/n2/r/n环境质量现状/r/n /r/n-49-/r/n/r/n5/r/n.2.1/r/n环境空气质量现状调查与评价/r/n /r/n-49-/r/n/r/n5/r/n./r/n2.2/r/n地表水环境质量现状调查与评价/r/n /r/n-50-/r/n/r/n5/r/n./r/n2.3/r/n地下水环境质量现状调查与评价/r/n /r/n-51-/r/n/r/n5/r/n.2.4/r/n声环境质量现状监测及评价/r/n /r/n-56-/r/n/r/n5/r/n.2.5/r/n生态环境质量/r/n /r/n-56-/r/n/r/n6/r/n/r/n/r/n环境影响预测与评价/r/n /r/n-59-/r/n/r/n6/r/n.1/r/n施工期环境影响分析/r/n /r/n-59-/r/n/r/n6/r/n.1.1/r/n施工期大气环境影响分析/r/n /r/n-59-/r/n/r/n6.1.2/r/n施工期水环境影响分析/r/n /r/n-62/r/n-/r/n/r/n6.1.3/r/n施工期噪声影响分析/r/n /r/n-63/r/n-/r/n/r/n6/r/n.1.4/r/n施工期固体废物影响分析/r/n /r/n-64-/r/n/r/n6/r/n.1.5/r/n施工期生态环境影响分析/r/n /r/n-65-/r/n/r/n6/r/n.2/r/n营运期环境影响分析/r/n /r/n-67-/r/n/r/n6/r/n.2.1/r/n地表水环境影响预测与评价/r/n /r/n-67-/r/n/r/n6.2.2/r/n地下水环境影响分析/r/n /r/n-68/r/n-/r/n/r/n6./r/n2/r/n.3/r/n噪声环境影响分析/r/n /r/n-69-/r/n/r/n6.2.5/r/n固体废物环境影响分析/r/n /r/n-71/r/n-/r/n/r/n6/r/n./r/n3/r/n环境风险分析/r/n /r/n-71-/r/n/r/n6.3.1/r/n风险识别/r/n /r/n-72/r/n-/r/n/r/n6.3.2/r/n环境风险潜势力判定/r/n /r/n-73/r/n-/r/n/r/n6/r/n.3.3/r/n风险评价等级与评价范围/r/n /r/n-73-/r/n/r/n6/r/n.3.4/r/n环境风险分析/r/n /r/n-74-/r/n/r/n7/r/n污染治理措施及可行性分析/r/n /r/n-76/r/n-/r/n/r/n7.1/r/n施工期污染治理措施及可行性分析/r/n /r/n-76/r/n-/r/n/r/n7/r/n./r/n1.1/r/n废气污染治理措施及可行性分析/r/n /r/n-76-/r/n/r/n7/r/n./r/n1.2/r/n废水污染治理措施及可行性分析/r/n /r/n-79-/r/n/r/n7/r/n./r/n1.3/r/n噪声环境影响分析及防治措施/r/n /r/n-80-/r/n/r/n7./r/n1/r/n.4/r/n固体废物环境影响分析及防治措施/r/n /r/n-81-/r/n/r/n7.2/r/n营运期污染治理措施及可行性分析/r/n /r/n-81/r/n-/r/n/r/n7/r/n./r/n2.1/r/n废水污染治理措施及可行性分析/r/n /r/n-81-/r/n/r/n7/r/n./r/n2.2/r/n噪声污染防治措施及可行性分析/r/n /r/n-82-/r/n/r/n7./r/n2/r/n.4/r/n地下水污染防治措施及可行性分析/r/n /r/n-82-/r/n/r/n7/r/n./r/n2.5/r/n固体废物防治措施可行性分析/r/n /r/n-83-/r/n/r/n7.3/r/n环境风险防范措施/r/n /r/n-83-/r/n/r/n8/r/n/r/n环境影响经济损益分析/r/n /r/n-85-/r/n/r/n8./r/n1/r/n/r/n社会经济效益分析/r/n /r/n-85-/r/n/r/n8.2/r/n环境效益/r/n /r/n-85/r/n-/r/n/r/n8/r/n.2.1/r/n环境保护投资/r/n /r/n-86-/r/n/r/n8/r/n.2.2/r/n环保运行费用/r/n /r/n-86-/r/n/r/n8/r/n.3/r/n结论/r/n /r/n-86-/r/n/r/n9/r/n/r/n/r/n环境管理、环境监测计划及“竣工环保”验收/r/n /r/n-87-/r/n/r/n9/r/n.1/r/n环境管理/r/n /r/n-87-/r/n/r/n9.1.1/r/n环境管理原则与目标/r/n /r/n-87/r/n-/r/n/r/n9/r/n.1.2/r/n环境管理体系/r/n /r/n-87-/r/n/r/n9/r/n.1.3/r/n环境管理机构设置及职责/r/n /r/n-88-/r/n/r/n9/r/n.1.4/r/n环境管理制度/r/n /r/n-88-/r/n/r/n9/r/n.2/r/n环境监测/r/n /r/n-89-/r/n/r/n9/r/n./r/n2.1/r/n施工期监测计划/r/n /r/n-89-/r/n/r/n9/r/n./r/n2.2/r/n营运期监测计划/r/n /r/n-89-/r/n/r/n9.2.4/r/n审核制度/r/n /r/n-90/r/n-/r/n/r/n9.3/r/n“竣工环保”验收/r/n /r/n-9/r/n0-/r/n/r/n10/r/n项目可行性分析/r/n /r/n-92-/r/n/r/n1/r/n0.1/r/n产业政策符合性分析/r/n /r/n-92-/r/n/r/n1/r/n0.2/r/n相关规划符合性分析/r/n /r/n-92-/r/n/r/n1/r/n0.2.1/r/n与《常德市城市总体规划(/r/n2009-2030/r/n)》符合性分析/r/n /r/n-92-/r/n/r/n1/r/n0.2.2/r/n与《常德市洞庭湖生态经济区水利保障专项规划》符合性分析/r/n-92-/r/n/r/n10/r/n./r/n3/r/n与“三线一单”符合性分析/r/n /r/n-93-/r/n/r/n1/r/n0/r/n.3.1/r/n生态保护红线/r/n /r/n-93-/r/n/r/n1/r/n0/r/n.3.2/r/n环境质量底线/r/n /r/n-93-/r/n/r/n1/r/n0/r/n.3.3/r/n资源利用上线/r/n /r/n-94-/r/n/r/n10.3.4/r/n与《常德市“三线一单”生态环境管控基本要求暨环境管控单/r/n元/r/n性分析/r/n /r/n/r/n-/r/n/r/n9/r/n4-/r/n/r/n10/r/n./r/n4/r/n可行性分析结论/r/n /r/n-96-/r/n/r/n1/r/n1/r/n/r/n结论与建议/r/n /r/n-97-/r/n/r/n1/r/n1.1/r/n结论/r/n /r/n-97-/r/n/r/n1/r/n1/r/n.1.1/r/n建设项目概况/r/n /r/n-97-/r/n/r/n11./r/n1/r/n.2/r/n环境质量现状结论/r/n /r/n-97-/r/n/r/n11./r/n1/r/n.3/r/n环境影响分析结论/r/n /r/n-99-/r/n/r/n1/r/n1/r/n.1.4/r/n环境保护措施/r/n /r/n-102-/r/n/r/n11/r/n./r/n1.5/r/n项目可行性结论/r/n /r/n-104-/r/n/r/n11.1.6/r/n公众参与/r/n /r/n-106/r/n-/r/n/r/n1/r/n1.1.7/r/n环境影响评价总体结论/r/n /r/n-106-/r/n/r/n1/r/n1.2/r/n建议/r/n /r/n-106-/r/n附件/r/n1/r/n项目立项批复/r/n附图/r/n1/r/n工程地理位置图/r/n附图/r/n2/r/n泵站总平面布置/r/n图/r/n附图/r/n3/r/n泵站周边环境关系图/r/n附图/r/n4/r/n/r/n台家铺北闸和台家铺南闸周边环境关系示意图/r/n附图/r/n5/r/n/r/n罗家岗北闸和罗家岗西闸周边环境关系示意图/r/n附图/r/n6/r/n双往垱闸周边环境关系示意图/r/n附图/r/n7/r/n/r/n/r/n工程与沅水鼎城段褶纹冠蚌国家级水产种质资源保护区位置关系图/r/n/r/n附图/r/n8/r/n芦山垸排区水系/r/n图/r/n附图/r/n9/r/n监测点位示意图/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-1/r/n-/r/n1/r/n/r/n概述/r/n1/r/n.1/r/n/r/n项目背景/r/n芦荻山乡/r/n三面环水，汛期无自流排水条件，涝、清水全由电排抽排至沅水和/r/n/r/n冲/r/n柳低水。在八官垸防洪排涝规划中，该乡涝、渍水主要由谈家河和牛鼻滩两处/r/n/r/n大电排抽排，但/r/n由/r/n于其地处排区尾端，排水路长达/r/n20/r/n多公里，又没有湖泊调蓄，/r/n/r/n排/r/n水很不及时，特别是当冲柳高水河河堤防汛紧张时，谈家河大电排停排，牛鼻/r/n/r/n滩/r/n大电排抢排冲柳河洪水，这样就打乱了八官院原有的排水体系。另外此时芦荻/r/n/r/n山/r/n乡排水主渠道中心河上的宋家包节制闸关闭，该乡涝、溃水无排水出路，致使/r/n/r/n涝、渍灾害严重。据统计，芦荻山乡多年平均损失粮食/r/n128.8/r/n/r/n万公斤，鲜鱼/r/n9.44/r/n/r/n万/r/n公斤，每年直接损失均在/r/n500/r/n万元以上。/r/n观音寺泵站位/r/n于/r/n洞庭湖11个重点垸之一的沅澧大圈芦山垸。该垸东北邻八/r/n/r/n官崇/r/n孝/r/n垸，南靠沅江洪道，西邻马家吉河。垸内共有芦祠沟、祠双沟、新毛沟、/r/n/r/n玉/r/n观沟、台观沟、石社沟、经南一号沟、中心河沟等八条沟渠。/r/n老观音/r/n寺泵站建成于/r/n1996/r/n年，老泵站设计底板高程为/r/n24.83/r/nm/r/n/r/n，由于当时经/r/n/r/n济条件及现/r/n场施工条件限制，老泵站完建时其泵房实际底板高程为/r/n25.83/r/nm/r/n/r/n，较/r/n/r/n原设计抬高/r/n了/r/n/r/n1.0/r/nm/r/n/r/n，导致水泵运行工况发生改变、效率较低，不能达到设计要/r/n求/r/n的排涝流量/r/n(/r/n原设计排涝流量/r/n10.16/r/nm/r/n3/r/n//r/ns/r/n)/r/n。/r/n特别是近年来，沅水高洪水位时，泵站机组无法在外河高洪下的扬程运行/r/n，/r/n/r/n导致排涝不及时，排区低洼处的农田、菜地、鱼塘、住宅被淹，造成了较大的/r/n经/r/n济/r/n损失和不良的社会影响。/r/n经水文计算/r/n，/r/n现观音寺泵站排区内设计排涝流量为/r/n16/r/nm/r/n3/r/n//r/ns/r/n，因此老站的排涝/r/n/r/n能力/r/n(10.16/r/nm/r/n3/r/n//r/ns/r/n)/r/n已经不能满足排区内的排涝要求；且老站始建期因底板高程/r/n抬/r/n/r/n高/r/n，老泵站建成后也未能达到原设计排涝流量；另外，近年来外河高洪水位时因/r/n/r/n机/r/n组扬程不足导致被迫停机，泵站无法运行。/r/n老泵站虽/r/n被/r/n鉴定为三类泵站，但仅对老泵站进行更新改造不能解决排涝能力/r/n/r/n不足的根本问题。严重威胁到了人民的生命财产安全，因此观音寺泵站的新建/r/n十/r/n/r/n分/r/n迫切。/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-2/r/n-/r/n在此背景下，常德市武陵区水利局拟在观音寺老泵站原址新建观音寺新泵/r/n站/r/n/r/n工程。观音寺新泵站按/r/n10/r/n年一遇/r/n3/r/n日暴雨/r/n3/r/n日末排至农作物耐淹深度，新建装/r/n/r/n机容量为/r/n5/r/n×/r/n450=22/r/n50/r/nkw/r/n，选用/r/n5/r/n台套/r/n1000/r/nHD/r/n-9/r/n(/r/n0/r/n°)型立式混流泵，设计排/r/n/r/n水总扬/r/n程/r/n/r/n7.97/r/nm/r/n/r/n，设计排水流量/r/n16/r/nm/r/n3/r/n//r/ns/r/n/r/n。新建后的泵站具备泵站与自排功能。/r/n观/r/n音/r/n寺新泵站工程属于防洪治涝工程，治涝面积共/r/n37.1/r/nkm/r/n2/r/n(/r/n5.57/r/n万亩)，/r/n/r/ns/r/n/r/n10/r/nm/r/n3/r/n//r/ns/r/n/r/n≤/r/n16.0/r/nm/r/n3/r/n//r/ns/r/n＜/r/n50/r/nm/r/n3/r/n//r/ns/r/n/r/n，装机功率/r/n2250/r/nKW/r/n/r/n，/r/n1.0/r/nMW/r/n≤/r/n2.25/r/nMW/r/n＜/r/n10/r/nMW/r/n/r/n，工/r/n/r/n程/r/n等/r/n别为Ⅲ等，工程规模为中型。/r/n根/r/n据《中华人民共和国环境保护法》、《中华人民共和国环境影响评价法》/r/n/r/n和/r/n《/r/n建设项目环境保护管理条例》有关规定，本项目需办理环境影响评价手续。/r/n/r/n本项目泵站工程根据《防洪标准》(/r/nGB/r/n50201-2014/r/n)表/r/n11.1.4/r/n，属于中/r/n型泵站，/r/n项/r/n目为新建，根据《建设项目环境影响评价分类管理名录》(/r/n2021/r/n年版)，属/r/n/r/n于“五十一、水利/r/n127/r/n防洪除涝工程报告书——新建大中型”中的新建中型/r/n防/r/n/r/n洪除涝工程，故应编制环境影响报告书/r/n。/r/n1/r/n.2/r/n/r/n评价过程/r/n为切实做/r/n好/r/n建设项目的环境保护工作，严格执行环境影响评价制度，常德市/r/n/r/n武陵区水利局于/r/n2022/r/n年/r/n9/r/n月/r/n2/r/n日委托常德市双赢环境咨询服务有限公司承/r/n担该/r/n项/r/n目的环境影响评价工作。/r/n常德市/r/n双/r/n赢环境咨询服务有限公司承接任务后，随即组成环境影响评价工作/r/n组，安排有关环评技术人员赴现场进行考察，收集有关资料，对泵站周围的环/r/n境/r/n/r/n质/r/n量现状进行了监测和调查，根据项目的规模，分析和预测项目可能对周围环境/r/n/r/n产/r/n生的影响程度和范围，提出相应的减缓环境影响的对策和措施。/r/n与此同/r/n时，建设单位根据《环境影响评价公众参与办法》(生态环境部令第/r/n/r/n4/r/n号)相关规定，于/r/n/r/n2022/r/n年/r/n9/r/n月/r/n5/r/n日在环境影响评价信息公示平台对本项目进/r/n行/r/n第一次公示，网站网址为：/r/n/r/nhttp/r/n://r/n//r/nwww/r/n./r/njs/r/n-/r/neia/r/n./r/ncn/r/n//r/nproject/r/n//r/ndetail/r/n?/r/ntype/r/n=1&/r/nproid/r/n=/r/nf/r/n71/r/nd/r/n528/r/nf/r/n75/r/nfd/r/n450/r/nf/r/n7/r/nd/r/n4/r/nc/r/n888/r/nb/r/n8/r/ncc/r/n886/r/nb/r/n0/r/n。于/r/n2022/r/n年/r/n9/r/n月/r/n/r/n8/r/n日在环境影响评价信息公示平台对本项目进行征求意见稿/r/n/r/n公示，网站网址为/r/n：/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-3/r/n-/r/n/r/nhttp/r/n://r/n//r/nwww/r/n./r/njs/r/n-/r/neia/r/n./r/ncn/r/n//r/nproject/r/n//r/ndetail/r/n?/r/ntype/r/n=2&/r/nproid/r/n=/r/nf/r/n71/r/nd/r/n528/r/nf/r/n75/r/nfd/r/n450/r/nf/r/n7/r/nd/r/n4/r/nc/r/n888/r/nb/r/n8/r/ncc/r/n886/r/nb/r/n0/r/n；按照公众参与办法第十一条(二)的要求，于/r/n2022/r/n年/r/n9/r/n月/r/n9/r/n日、/r/n9/r/n月/r/n13/r/n日/r/n/r/n在环/r/n球/r/n时报上对本项目征求意见稿进行了/r/n2/r/n次公示；按照公众参与办法第十一条/r/n/r/n /r/n(三)的要求/r/n，/r/n于/r/n2022/r/n年/r/n9/r/n月/r/n8/r/n日在项目所在地周边场所以张贴告示的方式进/r/n/r/n行/r/n了/r/n公示；以上公示过程中均未接收到任何单位或个人对项目建设的反对意见。/r/n/r/n同/r/n时，建设单位根据公众参与办法编制《观音寺新泵站工程环境影响评价公众参/r/n/r/n与/r/n说明》。/r/n在以上工作的基础上，根据国家、省、市的有关环保法规及《环境影响评/r/n价/r/n/r/n技/r/n术导则》中的有关要求和技术规范，并结合本项目的特点，编制了《观音寺新/r/n/r/n泵/r/n站/r/n工程环境影响报告书》。/r/n项目的环评工作流程如下：/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-4/r/n-/r/n第/r/n一阶段/r/n依/r/n据相关规定确定环境影响评价文件类型/r/n1/r/n/r/n/r/n研究相关技术文件和其他有关文件/r/n2/r/n/r/n进行初步工程分析/r/n3/r/n开展初步的环境状况调/r/n查/r/n /r/n环/r/n境影响因素识别与评价因子/r/n/r/n1/r/n环境影响因素识别与评价因子筛/r/n选/r/n2/r/n明确评价重点和环境保护目/r/n标/r/n3/r/n/r/n确定工作等级、评价范围和评价标准/r/n制定工作方案/r/n第/r/n二阶段/r/n建/r/n设项目/r/n工/r/n程分析/r/n建/r/n设项目/r/n工/r/n程分析/r/n评价范围内的环境状/r/n/r/n况/r/n调查、监测与评价/r/n各/r/n环境要素环境影响预测与评价/r/n/r/n各专题环境影响分析与评/r/n价/r/n第/r/n三阶段/r/n1/r/n提出环境保护措施，进行技术经济论/r/n证/r/n2/r/n给出污染物排放清/r/n单/r/n3/r/n/r/n给出建设项目环境影响评价结论/r/n /r/n编制环境影响评价文/r/n件/r/n/r/n图/r/n/r/n1.2-1/r/n/r/n环境影响评价工作程序图/r/n1/r/n./r/n3/r/n/r/n主要环境问题及环境影响/r/n本项目为水利工程，属于非污染生态项目，针对建设项目特点及当地环境/r/n特/r/n征，本项目环境影响评价工作关注的主要环境问题：/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-5/r/n-/r/n运行期：项目建成后对水文情势及防洪能力的影响、对河道水质及生态环/r/n境/r/n的影响。/r/n1/r/n./r/n4/r/n/r/n评价主要结论/r/n观/r/n音/r/n寺新泵站工程建设属于《产业结构调整指导目录(/r/n2019/r/n年本)》(/r/n2021/r/n/r/n/r/n符/r/n合产业政策，同时符合常德市城市总体规划及常德市洞庭湖生态经济区水利保/r/n/r/n障/r/n专项规划。本工程在施工期对环境有一定影响，运行期影响较小，按照本环评/r/n/r/n报/r/n告书的要求，加强运行期环境管理，采取切实可行的污染防治措施后，能够最/r/n/r/n大/r/n限度的减缓和减轻不利环境影响，在公众参与过程中均未接收到任何单位或个/r/n/r/n人/r/n对项目建设的反对意见，因此在严格落实本报告提出的环保措施的前提下，环/r/n境/r/n影响可接受，工程建设可行。/r/n-6/r/n-/r/n2/r/n/r/n总则/r/n2.1/r/n/r/n编制依/r/n据/r/n2.1./r/n1/r/n/r/n环境保护有关法律法规/r/n年/r/n1/r/n月/r/n1/r/n/r/n日起施行)；/r/n中华人民共和国水污染防治法》(/r/n2017/r/n年/r/n6/r/n月/r/n27/r/n日修订，/r/n2018/r/n年/r/n1/r/n1/r/n日起施行)；/r/n；/r/n6/r/n、《中华人民共和国环境噪声污染防治法/r/n》(/r/n2018/r/n年/r/n12/r/n月/r/n29/r/n日修订)；/r/n7/r/n、《中华人民共和国土壤污染防治法》(/r/n2019/r/n年/r/n1/r/n月/r/n1/r/n日起实施)；/r/n/r/n日修/r/n订/r/n)；/r/n，/r/n2011/r/n年/r/n3/r/n1/r/n日起实施)；/r/n/r/n施/r/n行)；/r/n/r/n月/r/n1/r/n9/r/n日起施行)；/r/n/r/n1/r/n日起施行)；/r/n13/r/n、《中华人民共和国/r/n野生动物保护法》(/r/n2018/r/n年修正，/r/n2018/r/n年/r/n12/r/n月/r/n/r/n2/r/n6/r/n日起施行)；/r/n14/r/n、《建设项目环境影响评价分类管理名录》(/r/n2021/r/n年/r/n版/r/n)；/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-7/r/n-/r/n1/r/n日起实施)；/r/n16/r/n、《产业结构调整指导目录(/r/n2019/r/n年本)》(/r/n2021/r/n年修/r/n订/r/n)；/r/n1/r/n7/r/n/r/n、《关于进一步加强环境影响评价管理防范环境风险的通知》(环发/r/n/r/n[2012]77/r/n号)；/r/n18/r/n、《大气污染防治行动计划》(国发〔/r/n2013/r/n〕/r/n37/r/n号/r/n)/r/n19/r/n、《水污染防治行动计划》(国发〔/r/n2015/r/n〕/r/n17/r/n号)；/r/n20/r/n、《土壤污染防治行动计划》(国发〔/r/n2016/r/n〕/r/n31/r/n号)/r/n；/r/n21/r/n/r/n、《中共中央国务院关于全面加强生态环境防护坚决打好污染防治攻坚/r/n22/r/n、《/r/n国务院关于印发打赢蓝天保卫战三年行动计划的通知》(国发/r/n[2018]22/r/n2./r/n1.2/r/n/r/n地方法规、规划/r/n1/r/n/r/n、《湖南省土壤污染防治工作方案》(湘政发〔/r/n2017/r/n〕/r/n4/r/n号)；/r/n3/r/n、/r/n《湖南省污染防治攻坚战三年行动计划(/r/n2018/r/n—/r/n2020/r/n年)》(湘政发/r/n4/r/n、/r/n《湖南省“蓝天保卫战”实施方案(/r/n2018/r/n—/r/n2020/r/n年)》；/r/n5/r/n/r/n、《湖南省“碧水保卫战”实施方案(/r/n2018/r/n—/r/n2020/r/n年)》；/r/n6/r/n/r/n、《湖南省“净土保卫战”实施方案(/r/n2018/r/n—/r/n2020/r/n年)》；/r/n7/r/n、/r/n湖南省人民政府关于印发《湖南省贯彻落实＜水污染防治行动计划＞实/r/n施方案(/r/n2016-2020/r/n年)》的通知(湘政办发/r/n[2015]53/r/n号)；/r/n/r/n8/r/n/r/n、《常德污染防治攻坚战三年行动计划(/r/n2018-2020/r/n年)》；/r/n/r/n1/r/n0/r/n/r/n、常德市人民政府关于印发《常德市土壤污染防治工作方案》的通知(常/r/n政发/r/n[2017]12/r/n号/r/n)；/r/n11/r/n/r/n、《常德市“三线一单”生态环境管控基本要求暨环境管控单元生态环境/r/n/r/n准入清单》(常政发〔/r/n2/r/n020/r/n〕/r/n10/r/n号)；/r/n12/r/n、《常德市建筑施/r/n工/r/n扬尘防治管理规定》(常建通〔/r/n2017/r/n〕/r/n50/r/n号)。/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-8/r/n-/r/n2./r/n1.3/r/n/r/n导则及技术规范/r/n1/r/n、《建设项目环境影响评价/r/n技术导则/r/n—/r/n总纲》(/r/nHJ2.1-2016/r/n)；/r/n2/r/n、《建设项目环境影响评价技术导则/r/n—/r/n大气环境》(/r/nHJ/r/n2.2-2018/r/n)；/r/n3/r/n/r/n、《建设项目环境影响评价技术导则/r/n—/r/n地表水环境》(/r/nHJ/r/n2.3-2018/r/n)；/r/n4/r/n、/r/n《/r/n建设项目环境影响评价技术导则/r/n—/r/n地下水环境》(/r/nHJ/r/n610-2016/r/n)；/r/n5/r/n、《建设项目环境影响/r/n评价技术导则/r/n—/r/n声环境》(/r/nHJ/r/n2.4-2021/r/n)；/r/n6/r/n、《环境影响评价技术导则－生态影响》(/r/nHJ/r/n19-2022/r/n)；/r/n7/r/n、《环境影响评价技术导则/r/n—/r/n土壤环境(试行)》(/r/nHJ/r/n964-2018/r/n)/r/n；/r/n8/r/n、《声环境功能区划分技术规范》(/r/nGB/r/n//r/nT/r/n15190/r/n-2014/r/n)；/r/n国家危险废物名录》(/r/n2021/r/n年版)；/r/n10/r/n、/r/n《湖南省主要水系地表水环境功能区划》(/r/nDB/r/n43/023-2005/r/n)；/r/n11/r/n、《湖南省常德市城市总体规划》(/r/n20/r/n09-2030/r/n)。/r/n2.1/r/n.4/r/n/r/n相关文件、技术资料/r/n1/r/n、/r/n观/r/n音寺新泵站工程可行性研究报告批复；/r/n2/r/n、《观音寺新泵站工程初步设计报告》/r/n(常德市水利水电勘察设计院，/r/n2017/r/n/r/n3/r/n/r/n、建设单位提供的其他相关技术资料。/r/n2.2/r/n/r/n评价因子与评价标/r/n准/r/n2.2/r/n.1/r/n/r/n环境影响因素的识别/r/n在全面、深入开展工程区环境现状调查、发展规划资料搜集等工作基础上/r/n，/r/n/r/n根/r/n据工程区环境保护要求和保护目标特点，结合本工程的工程任务、影响范围以/r/n/r/n及施工方式等基本情况，并参考国内外同类项目环境影响及环境保护的实践/r/n经/r/n/r/n验/r/n，采用矩阵法对工程各环境因素可能产生的影响进行初步识别分析，结果见表/r/n/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-9/r/n-/r/n由表/r/n2/r/n./r/n2-1/r/n可见，经筛选、识别确定本项目的主要环境要素是水环境、生态/r/n/r/n环/r/n境。其中主要环境影响因子是水文情势、陆生生态、水生生态；影响较小的环/r/n/r/n境/r/n因子主要是水质、人群健康和区域交通等；工程建设有利于区域社会经济的发/r/n展等/r/n。/r/n表/r/n/r/n2.2-1/r/n/r/n环境影响识别矩阵一览/r/n表/r/n环/r/n境要素/r/n环/r/n境因子/r/n影/r/n响源/r/n识别结果/r/n工程施/r/n工/r/n工程运/r/n行/r/n地表水环境/r/n水/r/n质/r/n水/r/n文情势/r/n地下水环境/r/n水/r/n质/r/n0/r/n水/r/n文情势/r/n声/r/n环境/r/n声/r/n0/r/n大/r/n气环境/r/n环/r/n境空气/r/n生态环/r/n境/r/n水/r/n生生态/r/n陆/r/n生生态/r/n水/r/n土流失/r/n社会环/r/n境/r/n社会经/r/n济/r/n+/r/n2/r/nL/r/n+/r/n3/r/nL/r/n+/r/n3/r/nL/r/n土地利用/r/n植被景观/r/n人群健/r/n康/r/n区/r/n域交通/r/n/r/n“/r/n0/r/n”、“/r/n1/r/n”、“/r/n2/r/n”、“/r/n3/r/n”数值分别标识无/r/n影响、轻微影响、中等影响和重大影响。/r/n2./r/n2.2/r/n/r/n评价因子的筛选/r/n根据环境影响因素识别结果，结合区域环境质量现状，以及项目特点，确/r/n定/r/n本项目评价因/r/n子见表/r/n2.2-2/r/n。/r/n表/r/n/r/n2.2-2/r/n/r/n评价因子一览表/r/n环/r/n境要素/r/n类别/r/n评价因/r/n子/r/n地表水环境/r/n现状评价因/r/n子/r/nCOD/r/nCr/r/nBOD/r/nNH/r/nN/r/n影/r/n响评价因子/r/npH/r/n/r/n、/r/nCOD/r/nCr/r/n/r/n、/r/nBOD/r/n5/r/n、/r/nNH/r/n3/r/n-N/r/n预测因/r/n子/r/n//r/n地下水环境/r/n现状评价因/r/n子/r/npH/r/n、氨氮、硝酸盐、亚硝酸盐、挥发性酚类、氰化物、砷/r/n、/r/n汞、铬(六价)、总硬度、铅、氟、镉、铁、锰、总溶解/r/n性/r/n固/r/n体、高锰酸盐指数、硫酸盐、氯化物、总大肠杆菌群、/r/n菌/r/n落总数/r/n大/r/n气环境/r/n现状评价因/r/n子/r/n声/r/n环境/r/n现状评价因/r/n子/r/nLeq/r/n/r/n(/r/nA/r/n)/r/n影/r/n响评价因子/r/nLeq/r/n/r/n(/r/nA/r/n)/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-10/r/n-/r/n生态环/r/n境/r/n影/r/n响分析内容/r/n土/r/n地利用、水生生态、陆生生态、水土流失/r/n2/r/n.2.3/r/n/r/n环境质量标准/r/n表水环境/r/n项目/r/n区/r/n域地表水沅江(社木铺人渡至汉寿县龙王庙汇入目平湖段)执行《地/r/n表水环境质量标准》(/r/nGB/r/n3838-2002/r/n)/r/n表/r/n1/r/n中Ⅲ类标准。/r/n表/r/n/r/n2.2-3/r/n/r/n《地表水环境质量标准》/r/n/r/n(/r/nGB3838-2002/r/n)/r/n/r/n(摘录)/r/n污/r/n染物名称/r/npH/r/nCOD/r/nBOD/r/n5/r/n氨氮/r/n总磷/r/nGB/r/n383/r/n8/r/n-2002/r/n表/r/n1/r/n中Ⅲ类标准/r/n6/r/n-9/r/n2/r/n0/r/n4/r/n0./r/n2/r/n*/r/n单位：/r/nmg/r/n//r/nL/r/n/r/n，/r/npH/r/n/r/n除外。/r/n境空气/r/n项目所在/r/n地/r/n环境空气功能区划为二类区，环境空气质量标准执行《环境空气/r/n质量标准》(/r/nGB/r/n3095-2012/r/n)及/r/n2018/r/n年修改单要求中二级标准，详见表/r/n2.2-/r/n4/r/n。/r/n表/r/n/r/n2/r/n./r/n2-4/r/n/r/n评价因子和评价标准表/r/n评价因/r/n子/r/n平均时/r/n段/r/n标/r/n准值/r/n//r/n/r/n(/r/nug/r/n//r/nm/r/n3/r/n/r/n)/r/n标/r/n准来源/r/nPM/r/n1/r/n0/r/n年/r/n平均/r/n70/r/nGB/r/n3/r/n0/r/n95-2012/r/n中二级标准/r/n2/r/n4/r/n小时平均/r/nPM/r/n2/r/n.5/r/n年/r/n平均/r/n3/r/n5/r/n2/r/n4/r/n小时平均/r/n75/r/nSO/r/n2/r/n年/r/n平均/r/n6/r/n0/r/n2/r/n4/r/n小时平均/r/n1/r/n/r/n小时平均/r/n50/r/n0/r/nNO/r/n2/r/n年/r/n平均/r/n40/r/n2/r/n4/r/n小时平均/r/n1/r/n/r/n小时平均/r/n2/r/n00/r/nCO/r/n2/r/n4/r/n小时平均/r/n4/r/nmg/r/n//r/nm/r/n3/r/n1/r/n/r/n小时平均/r/n1/r/n0/r/nmg/r/n//r/nm/r/n3/r/nO/r/n3/r/n2/r/n4/r/n小时平均/r/n2/r/n00/r/n项/r/n目区域声环境执行《声环境质量标准》(/r/nGB/r/n3096-2008/r/n)中/r/n2/r/n类标准。/r/n声环境质量标准》/r/n/r/n(/r/nGB3096-2008/r/n)/r/n/r/n(摘录)/r/n声环境功能区类别/r/n时段/r/n昼间/r/n夜间/r/n2/r/n/r/n类/r/n60/r/ndB/r/n/r/n(/r/nA/r/n)/r/n5/r/n0/r/ndB/r/n/r/n(/r/nA/r/n)/r/n4/r/n/r/n、地下水/r/n环境/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-11/r/n-/r/n项目区域地下水环境执行《地下水质量标准》(/r/nGB/r/n//r/nT/r/n14848-2017/r/n)中Ⅲ/r/n类/r/n标/r/n准，具体标准值见表/r/n2.2-6/r/n。/r/n表/r/n/r/n2.2-6/r/n/r/n地下水环境质量标准/r/n/r/n浓度单位：/r/nmg/r/n//r/nL/r/n/r/n，/r/npH/r/n/r/n除外/r/n污染物/r/npH/r/n氨氮/r/n硝酸盐/r/n亚硝酸盐/r/n挥发酚/r/n氰化物/r/nⅢ类标准/r/n6/r/n.5-8.5/r/n0/r/n.5/r/n2/r/n0.0/r/n0.00/r/n2/r/n0/r/n.05/r/n污染物/r/n砷/r/n汞/r/n铬/r/n/r/n(六价/r/n)/r/n总硬/r/n度/r/n铅/r/n氟/r/n化物/r/nⅢ类标准/r/n0/r/n.01/r/n0/r/n.001/r/n0/r/n.05/r/n450/r/n0/r/n.01/r/n污染物/r/n镉/r/n铁/r/n锰/r/n溶/r/n解性总固体/r/n耗/r/n氧量/r/n硫酸盐/r/nⅢ类标准/r/n0.00/r/n5/r/n0.3/r/n0/r/n.1/r/n3/r/n.0/r/n2/r/n50/r/n污染物/r/n氯/r/n化物/r/n总/r/n大肠杆菌群/r/n/r/n(/r/nCFU/r/n/100/r/nmL/r/n)/r/n菌落总数/r/n/r/n(/r/nCFU/r/n//r/nmL/r/n)/r/nⅢ类标准/r/n2/r/n50/r/n3/r/n.0/r/n2./r/n2.4/r/n/r/n污染物排放标准/r/n水污染物/r/n本/r/n项/r/n目营运期生活污水经过三格式化粪池/r/n+/r/n人工湿地处理后用于厂区绿化及/r/n/r/n周边农田灌溉。/r/n生/r/n活污水排放执行《农田灌溉水质标准》(/r/nGB/r/n5084-2021/r/n)相关/r/n/r/n要求。/r/n2/r/n/r/n、废气污/r/n染物/r/n营/r/n运期正常情况下不产生大气污染物。/r/n项/r/n目运营期厂界噪声执行《工业企业厂界环境噪声排放标准》/r/nGB/r/n1/r/n2348-2008/r/n)的/r/n2/r/n类功能区标准限值/r/n(/r/n昼间/r/n≤60/r/ndB/r/n/r/n，夜间/r/n≤50/r/ndB/r/n)/r/n。/r/n表/r/n/r/n2/r/n.2-9/r/n/r/n建设项目噪声排放标准/r/n时段/r/n项目/r/n标准限值/r/n/r/ndB/r/n/r/n(/r/nA/r/n)/r/n标/r/n准来源/r/n昼间/r/n夜间/r/n运营/r/n期/r/n厂/r/n界噪声/r/n6/r/n0/r/n50/r/nGB/r/n1/r/n2348-2008/r/n中的/r/n2/r/n类标准限值/r/n体废物/r/n项/r/n目一般固废执行《一般工业固体废物贮存和填埋污染控制标准》/r/n/r/n(/r/nGB/r/n1/r/n8599-2020)/r/n。/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-12/r/n-/r/n2.3/r/n/r/n评价等级及评价范/r/n围/r/n2.3.1/r/n/r/n大气环境影响评价等级与范围/r/n根据水利项目特点，本工程建成后正常情况下不产生大气污染物，各污染/r/n物/r/n/r/nPi/r/n不对大气环境影响评价定级。/r/n2.3.2/r/n/r/n地表水/r/n环境影响评价等级与范围/r/n工/r/n程/r/n建成后主要为工作人员生活污水排放，生活污水经三格式化粪池/r/n+/r/n人工/r/n/r/n湿/r/n地处理后，用于厂区绿化及周边农田灌溉，排放方式属于间接排放。根据《环/r/n/r/n境影响评价技术导则/r/n-/r/n地表水环境》/r/n(/r/nHJ/r/n2.3-2018)/r/n，确定评价等级为三级/r/nB/r/n/r/n。评/r/n价/r/n范/r/n围应满足其依托污水处理设施环境可行性分析的要求。/r/n根据/r/nHJ/r/n2.3-2018/r/n第/r/n8.1.2/r/n规定，水污染影/r/n响型三级/r/nB/r/n评价，主要评价内容包/r/n括/r/n：①水污染控制和水环境影响减缓措施有效性评价；②依托污水处理设施的环/r/n/r/n境/r/n可行性评价。/r/n文要素/r/n本项目为防洪排涝工程，根据《环境影响评价技术导则/r/n-/r/n地表水环境/r/n》/r/n/r/n(/r/nHJ/r/n2./r/n3/r/n-2018/r/n)，本工程属于水文要素影响型建设项目中的受影响地表水域类，/r/n表/r/n/r/n2.3-1/r/n/r/n水文要素影响型建设项目评价等级判定表/r/n评价/r/n/r/n等级/r/n水/r/n温/r/n径流/r/n受/r/n影响地表水域/r/n年径流量与/r/n总/r/n/r/n库/r/n容之比/r/nα/r/n兴/r/n利库容占年径/r/n/r/n流/r/n量百分比/r/nβ/%/r/n取水量/r/n占/r/n/r/n多年平/r/n均/r/n/r/n净流量/r/n百/r/n/r/n分比/r/nγ//r/n%/r/n工/r/n程垂直投影面积及外扩范围/r/nA/r/n1/r/n//r/nkm/r/n2/r/n/r/n；工程扰动水底面/r/n积/r/nA/r/n2/r/n//r/nkm/r/n2/r/n；过水断面宽度占用比例/r/n或/r/n占/r/n用水域面积比例/r/n/r/nR/r/n/%/r/n工/r/n程垂直投影/r/n面积及外扩/r/n范/r/n程/r/n扰动水底面/r/n河流/r/n湖库/r/n/r/n海域/r/n一级/r/nα/r/n≤10/r/n；或稳定/r/n分/r/n层/r/n/r/n节/r/n与多年调节/r/nγ/r/n≥30/r/nA/r/n；或/r/nA/r/n；或/r/nA/r/n；或/r/nA/r/n2/r/n≥3/r/n二级/r/n/r/n不/r/n稳定分层/r/n20/r/n＞/r/nβ/r/n＞/r/n10/r/n；或/r/n季/r/n节/r/n调节与不完全/r/n年/r/n调节/r/n30/r/n＞/r/nγ/r/n＞/r/n10/r/n0.3/r/n＞/r/nA/r/n1/r/n＞/r/n0./r/n05/r/n；/r/n0.2/r/n；/r/n或/r/n10/r/n＞/r/nR/r/n0.3/r/n＞/r/nA/r/n1/r/n＞/r/n0./r/n05/r/n；/r/n0.2/r/n；/r/n或/r/n20/r/n＞/r/nR/r/n.5/r/n＞/r/nA/r/n1/r/n＞/r/n＞/r/n0.5/r/n-13/r/n-/r/n三/r/n级/r/nα/r/n≥20/r/n；或混合/r/n型/r/nβ/r/n≤20/r/n；或无调节/r/nA/r/n1/r/n≤0.05/r/n；或/r/n/r/nA/r/n2/r/n≤0.2/r/n；或/r/nR/r/n≤5/r/nA/r/n1/r/n≤0.05/r/n；或/r/n/r/nA/r/n1/r/n≤0.15/r/n；或/r/nA/r/n2/r/n≤0.5/r/n注/r/n1/r/n：/r/n影响范围涉及饮用水水源保护区、重点保护与珍稀水生生物的栖息地、重要水生生物的自然产卵场、/r/n/r/n自/r/n然/r/n保护区等保护目标，评价等级应不低于二级。/r/n注/r/n/r/n2/r/n：跨流域调水、引水式电站、可能受到大型河流感潮河段咸潮影响的建设项目，评价等级不低于二级。/r/n注/r/n3/r/n/r/n：造成入海河口(湾口)宽度束窄(束窄尺度达到原宽度的/r/n5%/r/n以上)，评价等级应不低于二级。/r/n注/r/n4/r/n：对不透水的单方向建筑尺度较长的水工建筑物(如防波堤、导流堤等)，其与潮流或水流主流向切线/r/n/r/n垂/r/n直方向投影长度大于/r/n2/r/nkm/r/n/r/n时，评价等级应不低于二级。/r/n注/r/n5/r/n/r/n：允许在一类海域建设的项目，评价等级为一级。/r/n注/r/n6/r/n：同时存在多个水文要素影响的建设项目，分别判定各水文要素影响评价等级，并取其中最高等级作为/r/n/r/n水/r/n文/r/n要素影响型建设项目评价等级。/r/n本工程为防洪排涝工程，泵站建设主要为了提高芦山垸排涝能力。本工程/r/n将/r/n/r/n充分利用/r/n泵/r/n站的自排功能。当前池水位高于外河(沅江)水位时，外河防洪闸及/r/n/r/n自排涵闸门开启，排区内渍水自流排入沅江；当外河水位高于前池水位时(且/r/n前/r/n/r/n池水位达到/r/n27.88/r/nm/r/n)，外河防洪闸开启，自排涵闸门关闭，泵站机组开/r/n机运行，/r/n实现泵站/r/n排水；当外河水位高于/r/n38.80/r/nm/r/n/r/n时，防洪闸关闭，泵站停排防洪。/r/n本/r/n工/r/n程占地面积/r/n6400/r/nm/r/n2/r/n＜/r/n0.05/r/nkm/r/n2/r/n，且工程的建设仅改变了芦荻山乡地表水/r/n/r/n入/r/n沅江的通道，但水量不变。且影响范围不涉及饮用水源保护区、重点保护与珍/r/n/r/n稀/r/n水生生物的栖息地、重要水生生物的自然产卵场、自然保护区等保护目标。对/r/n/r/n照/r/n水文要素影响型建设项目评价等级判定表，项目地表水评价等级为水文影响型/r/n/r/n三/r/n级评价。/r/n2.3.3/r/n/r/n地下水/r/n环境影响评价等级与范围/r/n根据《环境影响评价技术导则——地/r/n下水环境》(/r/nHJ610-2016/r/n)附录/r/nA/r/n，确/r/n定本工程为Ⅲ类建设项目/r/n。/r/n建设项目/r/n的/r/n地下水环境敏感程度可分为敏感、较敏感、不敏感三级，分级原/r/n表/r/n/r/n2.3-2/r/n/r/n地下水环境敏感程度分级表/r/n敏/r/n感程度/r/n地/r/n下水环境敏感特征/r/n敏感/r/n集/r/n中/r/n式饮用水水源(包括已建成的在用、备用、应急水源，在建和规划的饮用/r/n/r/n水/r/n水/r/n源)准保护区；除集中式饮用水水源以外的国家或地方政府设定的与地下/r/n/r/n水/r/n环/r/n境相关的其他保护区，如热水、矿泉水、温泉等特殊地下水资源保护区。/r/n较敏/r/n感/r/n集/r/n中/r/n式饮用水水源(包括已建成的在用、备用、应急水源，在建和规划的饮用/r/n观/r/n音寺新泵站工程环境影响报告书/r/n-14/r/n-/r/n水水源)准保护区以外的补给径流区；未划定准保护区的集中式饮用水水源/r/n，/r/n/r/n其保/r/n护/r/n区以外的补给径流区；分散式饮用水水源地；特殊地下水资源(如热水、/r/n/r/n矿/r/n泉/r/n水、温泉等)保护区以外的分布区等其他未列入上述敏感分级的环境敏感/r/n/r/n不敏/r/n感/r/n上/r/n述地区之外的其它地区。/r/n注：/r/na/r/n“环境敏感区”是指《建设项目环境影响评价分类管理名录》中所界定的涉及地下/r/n水/r/n/r/n的/r/n环境敏感区。/r/n工程区域/r/n不/r/n属于集中式饮用水水源地准保护区及以外的补给径流区，无国家/r/n/r/n或地方政府设定的与地下水环境相关的其它保护区，属于上述地区之外的其它/r/