NEAR MODESTO
The Modesto Ground Water Contamination site is related to a dry cleaning facility that leaked tetrachloroethylene (PCE) into the soil and ground water. The dry cleaning facility discharged wastewater containing PCE into the sewer system for approximately 50 years, and an unknown quantity of PCE was released into the subsurface. The old leaky dry cleaning equipment has been replaced with new equipment, and PCE is no longer used by the facility. The dry cleaner is located approximately 1,200 feet from a municipal well, which was contaminated with PCE from the dry cleaner. The City of Modesto began monitoring ground water in 1984 and Municipal Well 11 was found to be contaminated with PCE above the allowable drinking water standard. Well 11 was temporarily taken out of service by the City and a wellhead granular activated carbon treatment system was installed in June 1991 to remove the PCE contamination from the ground water. Well 11 was then shut down again in October 1995 because it was found to be contaminated with low levels of naturally occurring uranium that were slightly above the allowable drinking water level. It is unknown if Well 11 will ever be used again as a source of drinking water because of the naturally occurring uranium. EPA has started an interim remedy to clean up PCE in soil and groundwater, and is completing studies to select a final remedy. These actions will prevent other wells from becoming contaminated.
16,490 |
People living within a 1 mile radius |
$45,143 |
Average Income |
6,878 |
Occupied homes |
No stories have been submitted for this site.
