Here’s a weekly report dated January 6 (PDF) to share updated data related to water supplies, Little Lehigh Creek levels and monitoring wall levels. Several of the graphs here update the ones we shared in November on this blog and show some minor improvement based on the steady heavy rains in late November and additional...Read More
The Pennsylvania Department of Environmental Production (DEP) continues to have Lehigh County (as well as Northampton County and six others) in a drought warning. Read the news release from DEP.
As part of the drought warning, DEP is encouraging a voluntary water use reduction of 10-15 percent. LCA’s mid-summer usage of about 25 million gallons...Read More
Water flow has returned to all sections of the Little Lehigh Creek since the steady rainfall in late November. Fortunately, precipitation has been steady since then – at least enough to keep the Little Lehigh flowing. Rain is in the forecast again the week of January 8, which is promising.
Here are two pictures from the...Read More
The map below illustrates how the Little Lehigh (dark blue) flows from Berks County and through our service area before eventually connecting with the Lehigh River in Allentown. Tributaries are in light blue. The red lines indicate transmission mains.
The map is interactive. Use the >> function in the map's upper left corner to turn on...Read More
Lehigh County Authority operates two wells close to the Little Lehigh: Well 8 and Well 12. Both of these wells continue to show normal water levels and are not approaching drought levels.
Data for Well 8 since January 2010 is below. You can see that the water level in the well has been fairly steady. This...Read More
Where do we draw the water used across the Little Lehigh Basin?
The graph below shows how our water sources have changed over time. Back in 1977, water users in the Little Lehigh Basin were using 30 million gallons a day, most of which came from the City of Allentown’s sources: the Little Lehigh adjacent to...Read More
The U.S. Geological Survey monitors the flow of the Little Lehigh in two locations: one in the Little Lehigh Parkway at the “Robin Hood Bridge” just to the right as you drive down the hill into the park from 15th Street, and one at the 10th Street Bridge, just downstream from the City’s water...Read More
Lehigh County Authority is monitoring conditions along the Little Lehigh Creek where water flow has dried up in some locations, but flowing fine (albeit low) in other locations. Reports indicate this is due to the limestone geology in this region where the creek flows in and out of the local groundwater aquifer. It...Read More
The primary reason our rivers and creeks have been low: lack of precipitation. The table below shows monthly precipitation amounts since January of 2015. Most of the last 22 months have been significantly below the average – especially since March of this year.
Rainfall increases the natural runoff into streams and rivers. It also recharges groundwater...Read More