文档介绍：河流污染治理项目环评
of rural drinking water sources, protection of drinking water sources in rural areas by the end of tolating network protection facilities- 20 - 0991-3857017**环境保护技术咨询中心
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities - 145 -
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
表1-4-2 地表水水质评价标准 单位：mg/L
项目
pH
挥发酚
硫酸盐
氨氮
总磷
高锰酸盐指数
粪大肠菌群
地表水
Ⅲ类
6-9
≤
≤250
≤
≤
≤
≤10000个/L
IV类
6-9
≤
≤250
≤
≤
≤
≤20000个/L
项目
硫化物
***化物
六价铬
***
总氮
***化物
地表水
Ⅲ类
≤
≤
≤
≤
≤
≤
IV类
≤
≤
≤
≤
≤
≤
(3) 地下水质量标准
执行《地下水质量标准》(GB/T14848-93)中Ⅲ类标准。标准值见表1-4-3。
表1-4-3 地下水水质评价标准 单位：mg/L
项目
pH(无量纲)
***化物
氨氮
***盐氮
亚***盐氮
挥发酚
地下水
-
≤250
≤
≤20
≤
≤
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities- 20 - 0991-3857017**环境保护技术咨询中心
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities - 7 -
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
项目
***化物
总硬度
细菌总数
总大肠菌群
高锰酸盐指数
溶解性总固体
地下水
≤
≤450
≤100
≤
≤
≤1000
(4) 声环境评价标准
按项目所在区域环境功能区划分，声环境采用《城市区域环境噪声标准》(GB3096-93)中的2类区标准，昼间60dB(A)，夜间50dB(A),其值见