NOTICE: Upper & Lower Macungie water system flushing program


On Monday, June 12th, Lehigh County Authority began our annual water system flushing program in Upper and Lower Macungie townships. This flushing program will be conducted Monday through Friday, during the hours of 7 a.m. to 5 p.m. in selected areas. Customers who may be impacted will receive a phone notification from LCA directly in advance of the work in your area. We expect the flushing program to be completed by September.

This is a new and very important maintenance program that LCA is conducting to help ensure our disinfection process is working and to remove any buildup of sediment in the water lines that serve your property. If you use water during this time period, you may experience a decrease in water pressure or brown water. After our flushing is complete, you may continue to experience brown water for a period of time. Please allow the water to run for a few minutes until it clears up, and refrain from doing laundry while you have brown water to prevent staining. 

To use the interactive map below:

  • Click the magnifying glass in the upper right corner to search for your address
  • After finding / selecting your address, click on the “home” button or zoom in/out until you can see where your property is inside the map
  • If your property is within the RED zone, you can zoom in/out on the map and the dates we will be flushing in your area will appear


If you experience any other problems with your water service, please Contact Us. Thank you for your understanding as we complete this important flushing program!