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2. Letters warn some Tri-Citians of water pipes of ‘unknown ...

   www.aol.com/letters-warn-tri-citians-water...

   The use of lead has been banned in water systems since 1986, and most water pipes are now made of copper or plastic. Both Pasco and Richland public works departments have sent letters to residents.

3. Here's why you might get a letter warning about potential ...

   www.aol.com/heres-why-might-letter-warning...

   The EPA has set the maximum contaminant level goal for lead in drinking water at zero because lead is a toxic metal that can be harmful to human health, even at low exposure levels. Lead can ...

4. Lead service line - Wikipedia

   en.wikipedia.org/wiki/Lead_service_line

   A lead service line (LSL, also known as lead service pipe, [1] and lead connection pipe [2]) is a pipe made of lead which is used in potable water distribution to connect a water main to a user's premises. Lead exposure is a public health hazard as it causes developmental effects in fetuses, infants, and young children. It also has other health ...

5. Lead and Copper Rule - Wikipedia

   en.wikipedia.org/wiki/Lead_and_Copper_Rule

   EPA illustration of lead sources in residential buildings Infographic about lead in drinking water. The Lead and Copper Rule (LCR) is a United States federal regulation that limits the concentration of lead and copper allowed in public drinking water at the consumer's tap, as well as limiting the permissible amount of pipe corrosion occurring due to the water itself. [1]

6. City of Amarillo launches lead pipe inspection program to ...

   www.aol.com/city-amarillo-launches-lead-pipe...

   These regulations require all municipalities to identify and replace lead service lines. The city's initial inventory, released online on Oct. 16, identifies water lines as "Unknown," "Galvanized ...

7. Greensboro Water Resources sets record straight about letter ...

   www.aol.com/greensboro-water-resources-sets...

   This was the first change since 1991, so over the past few years, Greensboro has been doing its own investigation into water pipes and has not found any signs of lead.

8. Uniform Plumbing Code - Wikipedia

   en.wikipedia.org/wiki/Uniform_Plumbing_Code

   Designated as an American National Standard, the Uniform Plumbing Code (UPC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems as a means of promoting the public's health, safety and welfare.

9. Identifying lead water service lines an inexact science for ...

   www.aol.com/identifying-lead-water-lines-inexact...

   For example, homes built before 1986 — when the federal government banned the use of leaded pipe and solder in new plumbing system construction — may or may not have lead lines in them.