饮用水检测
The City of Newark recently announced that the New Jersey Department of Environmental Protection (NJDEP) found elevated levels of lead at thirty of the City's public schools.
申博太阳城饮用水检测临时规程
Background
In an effort to ensure safe drinking water for the university community, NJIT has recently initiated a drinking water sampling program. To date, initial samples have been collected from all occupied NJIT buildings. 最初的采样, 额外的跟进抽样, 系统维护活动如下所述. NJIT will continue to take the necessary steps to maintain safe drinking water for the campus community.
初始抽样策略
The sampling methodology and water system maintenance strategy being utilized is based primarily on US 环境保护署 (EPA) recommendations. 1在他们修订的技术指导文件中, 环保署建议对饮用水进行两步检测. The initial sample is collected after water has remained unused in the pipe or fixture for a minimum of eight (8) hours but not more than eighteen (18) hours. 这个初始样本被称为第一次抽取样本. Follow up sampling will be conducted at the same locations after flushing the plumbing fixture for approximately 30 seconds. The second step sample is known as a follow-up flush sample.
The initial group of buildings selected for sampling included all of NJIT’s residence halls. Other buildings selected for initial sampling included older buildings that may have been built or renovated prior to lead standards changing for use in building materials in the 1980s. Plumbing fixtures selected for initial sampling included those fixtures that are used most frequently, 比如饮水机和厨房水龙头. 一旦收集, the initial samples were sent to a laboratory certified by the 新泽西州环境保护部 (DEP) for drinking water analysis and to the City of Newark for analysis. Additional testing is currently underway throughout the NJIT campus.
The US EPA and the NJ DEP recognize the 15 micrograms per liter (or 15 parts per billion) Action Level .1,2 This is the level of lead in drinking water above which certain actions are required including further testing, 冲洗水系统, and removing from service plumbing fixtures where a sample returned a result of 20 ppb or higher.
参考文献:
- U.S. 环境保护署. 3Ts for Reducing Lead in Drinking Water in Schools: Revised Technical Guidance. 2006.
- 新泽西州环境保护部. 安全饮水局供水处. Federal and NJ Primary and Secondary Drinking Water Standards. 2005
初步中期控制计划:
根据初始样本的结果, NJIT has implemented the following interim control strategies:
- Collect and analyze additional initial (first draw) samples from all occupied university buildings.
- Collect and analyze additional follow up (flush) samples from all locations where initial sample analysis returned results higher than the US EPA/NJ DEP Action Level.
- Sample locations will concentrate on drinking water fountains and pantry and kitchen plumbing fixtures.
- Compare initial (first draw) and follow up (flush) sample results to help identify potentially problematic fixtures and the effectiveness of water system flushing.
- Remove from service all drinking fountains and plumbing fixtures from buildings where sample analysis returned follow up results higher than the US EPA/NJ DEP Action Level until system flushing and further testing takes place.
- Provide an alternative source of drinking water 以瓶装水的形式 for buildings where drinking fountains and kitchen plumbing fixtures were removed from service.
- Post signs in locations where sample analysis returned results higher than the US EPA/NJ DEP Action Level indicating that water at this location should not be used for used for drinking or cooking.
- Initiate a program of the replacement of drinking fountains or fixtures throughout the university if it is believed the source of the lead is within these fixtures.
- Institute a systematic and regular protocol for ongoing sample collection and analysis as well as periodic water system flushing and maintenance.
- Institute a comprehensive system-wide drinking water monitoring and control program.
饮用水缓解计划
在回应水的结果,额外取样, NJIT will accelerate the implementation of the Interim Control Plan that has been described previously. Specifically, NJIT has begun to take the following remediation actions:
Continue to remove from service all drinking fountains and plumbing fixtures in buildings where sample analysis returned follow up results higher than the US EPA/NJ DEP Action Level.
Accelerate the replacement of problematic plumbing fixtures focusing first on drinking fountains and sink faucets in food preparation areas.
Continue to provide an alternative source of drinking water, 以瓶装水的形式, for locations where drinking fountains and kitchen plumbing fixtures were removed from service.
开始安装使用点水过滤装置, certified for the removal of lead from drinking water by the appropriate ANSI/NSF Standard, 在他们可能最有效的地方.
加快实施中期控制计划的所有其他方面, 包括张贴标志, 饮用水系统的冲洗, 收集额外的水样.
报告结果
就像以前通过电子邮件沟通一样, NJIT will continue to post results for samples that return laboratory results higher than the US EPA/NJ DEP Action Level.