在北湾区域水处理厂（NBR）研究了臭氧剂量对可生物降解溶解有机碳（BDOC）形成的影响。将臭氧与总有机碳的比率增加到0.45会导致BDOC的形成。在水进入配水系统之前，沉淀和过滤/吸附可以有效地将BDOC去除到无法测量的水平。正在进行的配电系统监测项目的数据表明，在水处理过程中使用臭氧不会产生明显的不利影响。使用臭氧前后异养平板计数（HPC）水平相似。保持氯残留水平高于0.3 mg/L似乎对控制HPC水平很重要。

The impacts of ozone dose in the formation of biodegradable dissolved organic carbon (BDOC) were studied at the North Bay Regional Water Treatment Plant (NBR). Increasing the ozone to total organic carbon ratio to 0.45 resulted in the formation of BDOC. Sedimentation and filtration/adsorption were effective in removing BDOC to non-measurable levels prior to the water entering the distribution system. Data from an ongoing distribution system monitoring program indicate no discernible adverse impacts from using ozone during water treatment. Heterotrophic plate count (HPC) levels were similar before and after the use of ozone. Maintaining chlorine residual levels above 0.3 mg/L appears to be important for controlling HPC levels.