黑龙滩水库2011-2015年水质监测分析

Quality Surveillance and Analysis of Water in Heilongtan Reservoir,2011-2015

目的分析仁寿县黑龙滩水库水质2011年到2015年度的基本情况,为保障眉山市城区、仁寿全域两百多万人的饮用水质安全提供实时可靠、科学严谨的监测数据。方法每年每季度采水样1次,每次水质监测过程中,均先通过GPS精确定位七个监测断面,并按采样要求在每个监测断面按照左、中上、中中、中下、右设置5个采样点。结果除作为进水断面的五里桥连续五年第二季粪大肠菌群检测项目不合格,其余各断面每季度所监测项目均达标准。结论黑龙滩水库水质优良,适合用于生活饮用水水源。

Objective To analyze the quality of water in Heilongtan Reservoir over 2011 to 2015 and provide reliable and scientific surveillance data for ensuring quality safety of drinking water for more than two million residents in the city proper of Meishan and the whole region of Renshou. Methods Water samples were collected on a quarterly basis. During surveillance in each quarter,seven surveillance sections were precisely localized by GPS and,following the sampling requirements,five（ left,upper- middle,middle- middle,lower- middle,right） sampling sites were set on each section. Results Fecal coliform test results of water from Wuliqiao as a water inlet section failed to meet the standard in the second quarter of five consecutive years,while all other surveillance items at all other section met the standards. Conclusion The quality of water in Heilongtan Reservoir is good; it is suitable as a drinking water source.