饮用水中的铅
供水线路调查 -我们需要你的帮助!
利哈伊郡管理局 needs your help to complete an inventory of all service line pipes connected to the public system. 检查家里是否有铅管, then share your information with us. 点击这里 to learn more and access our customer survey.
更换铅管 Pilot Project | City of Allentown
View the project page for details on the 铅管更换先导.
铅是什么??
Lead is a common naturally occurring metallic element that can be found in air, soil, and water. It is also a powerful toxin that is harmful to human health. Lead was commonly used in gasoline and paint until the 1970s and is still sometimes found in products such as ceramics, 电池, 弹药, 和化妆品. Lead was used for centuries in plumbing because of its pliability and resistance to leaks; in fact, 铅的化学符号, Pb, is derived from the Latin word for plumbing.
1986年，美国.S. Congress amended the Safe Drinking Water Act to prohibit the use of pipes, 焊料, or flux that were not “lead-free.” At the time lead-free was defined as 焊料 and flux with no more than .2% lead and pipes with no more than 8%. In 2014, the maximum allowable lead content was reduced from not more than 8% to not more than a weighted average of 0.25% of the wetted surface of pipes, pipe fittings, plumbing fittings, and fixtures.
Where does lead in drinking water come from?
Learn about lead in drinking water and how it gets there by checking out this bilingual 信息图表来自美国.S. 环境保护署.
The drinking water from LCA’s water sources (creeks, springs, and wells) is lead-free! 然而, if buildings have water pipes made of lead or plumbing containing lead, there is a risk of having lead get into the water. This is important for customers to understand because customers must be engaged in solutions to reduce the risk of lead exposure!
重要提示: The risk of lead exposure will vary from home to home. In some homes, the risk may be from lead-based paint. This continues to be the primary area of concern by public health agencies and the 疾病控制中心.
Download LCA Fact Sheet # 1: About 饮用水中的铅
Exposure to lead through water is controlled by LCA’s efforts to ensure our water does not contain corrosive properties that will contribute to lead leaching from the pipes it travels through to get to your tap. While the water leaving the treatment plant does not contain lead, homes serviced by lead service lines have the potential to accumulate lead in the water. Homes built before 1960 have a greater possibility of being serviced by a lead service line. In 1986, amendments to the Safe Drinking Water Act (SDWA) limited the use of lead as a material in public water supplies and in residential or non-residential facility drinking water plumbing (US EPA Safe Drinking Water Act Amendments, 1986).
我家有铅管吗?
Having a lead service line does not mean high levels of lead in your home’s drinking water. The corrosion control treatment used by LCA has shown to be effective in minimizing lead leaching into drinking water and is compliant with EPA regulations for lead.
If you have a lead service line, 铅管道, 黄铜的, copper plumbing with lead 焊料, 软水器, 或者其他治疗系统, these are all potential sources of lead exposure to your tap water.
Download LCA Fact Sheet # 2: How to Check Your Home for Lead Pipes
当涉及到靠谱的外围买球网站热线时, 维护, 和维修, what is the property owner’s responsibility?
A common question customers have is what is the responsibility of the property owner to maintain and repair? Select the link below for your service area to view a helpful diagram that explains the property owner’s responsibility:
City of Allentown Division Customer Responsibilities Explained
Suburban Division Customer Responsibilities Explained
You can take steps to reduce lead exposure in your home!
There are ways to lower lead exposure in your home, such as cleaning faucet aerators.
Download LCA Fact Sheet # 3: Easy Ways to Reduce Lead Exposure: Rinse Your Pipes & 清洁曝气器
LCA水质测试
目前, LCA tests for lead in tap water every three years at 50 representative taps of vulnerable homes in the City of Allentown and at more than 150 homes across all of our service areas in Lehigh and Northampton counties. We do this according to the requirement of the 环境保护署’s Lead and Copper Rule. The testing results are used to determine if our water continues to be non-corrosive so that water has minimum potential for lead to leach from plumbing materials. 到目前为止, our test results show that the non-corrosive properties of LCA’s water are working to keep lead levels to a minimum.
测试你的水!
Customers can have their water tested for lead by any certified laboratory of their choosing.