Coliform bacteria are microorganisms that are often used as indicators of the presence of other pathogenic bacteria. Calculation of total coliform bacteria needs to be done to determine the presence of organic waste pollution that occurs in the Blanakan River Estuary, Subang, West Java. The purpose of this study was to determine the total abundance of coliform bacteria (water status based on coliform level) and to study the relationship between total coliform bacteria and Zn heavy metal content in the Blanakan River Estuary. The method used was purposive sampling carried out at three sampling stations. The results obtained showed that the average coliform content in the three stations ranged from 9.2 x 10⁻² to 3.0 x 10⁻¹ (0.092 – 0.3) MPN/ml sample. Zn heavy metal content in the water at three stations ranged from 0.61 mg/l to 2.13 mg/l. The conclusion of this study is the abundance of the average total Coliform bacteria obtained at each station shows that the total content of Coliform bacteria has not exceeded water quality standards according to the Government Regulation no 82 of 2001. The presence of total coliform bacteria has a weak relationship with the presence of metals Zn.

大肠菌群是经常用作指示其他致病菌存在的微生物。需要进行总大肠菌群的计算以确定在西爪哇省梳邦的布拉纳坎河河口发生的有机废物污染的存在。本研究的目的是确定大肠菌群的总丰度（基于大肠菌群水平的水状态），并研究布拉纳坎河口大肠菌群总量与锌重金属含量之间的关系。使用的方法是在三个采样站进行有目的的采样。结果表明，三个站点的平均大肠菌群含量范围为 9.2 x 10 ^-2至 3.0 x 10 ^-1(0.092 – 0.3) MPN/ml 样品。三个站点的水中锌重金属含量范围为0.61 mg/l至2.13 mg/l。本研究的结论是每个站点获得的平均总大肠菌群的丰度表明，大肠菌群的总含量没有超过 2001 年第 82 号政府条例规定的水质标准。总大肠菌群的存在对与金属 Zn 的存在关系较弱。