Lancaster City Water Now in Compliance

06/13/2017 by City of Lancaster


Public Notification Update

Este informe contiene informacion muy importante sobre sy agua de beber. Traduzcalo o hable con alguien que lo entienda bien.

The City of Lancaster is pleased to report the problem of high Haloacetic Acids (HAAs) has been corrected and the City of Lancaster Water System, no longer exceeds the standard, or maximum contaminant level (MCL).

Customers of the City of Lancaster Water Department, were notified in January and April of 2017 of a Haloacetic Acid (HAA) Standards Violation.

After the initial exceedance, the City optimized system treatment by lowering chlorine dosages at plants and boosters while increasing system sampling and main flushing.  A primary result of this system wide optimization is that the City has had HAA results well under the MCL.  

The levels of HAAs have been well below the MCL (0.060mg/L) since the City started the system optimization mentioned above.  The levels of HAAs were 0.033mg/L, for the first quarter of 2017 and 0.0225mg/L for the second quarter of 2017.  These two results were used to recalculate the locational running annual average (LRAA).  The new LRAA result is 0.055mg/L which is below the EPA standard MCL of 0.060mg/L, for HAAs.  The EPA’s MCL for HAAs is calculated using the average of results from the past four quarters.

Optimized system treatment mentioned above will continue to be implemented to keep the HAA levels below the MCL.

Please share this information with all the other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.

For more information, please contact the City of Lancaster Water Department: Water Quality Laboratory, at (717) 291-4818 Monday-Friday 7:00 AM - 4:15 PM.  After hours, the Water Emergency phone number, (717) 291-4816, is available. (Not Sure if we should re-post the highlighted area here, let us get Charlotte’s say on this.)

Notice is provided by the City of Lancaster, Department of Public Works

Public Water Supplier ID#: 7360058