Lockwood Ash Disposal Site

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Lockwood Ash Disposal Site has 11 groundwater monitoring wells, 5 of which have been polluted above federal advisory levels based on samples collected between March 23, 2015 and November 21, 2019. Groundwater at this site contains unsafe levels of arsenic, boron, molybdenum, sulfate and thallium.

Site description

Lockwood Ash Disposal Site, managed by Lockwood Hills, LLC, is associated with Greenidge Generating Station in Yates County, New York. Built in 1937, the plant has retired three of its units and no longer burns coal. The plant currently has one converted gas-fired unit with a capacity of 106 MW. Lockwood Ash Disposal Site is regulated under the CCR rule.

You can find the industry-reported data here. For more information about the Lockwood Ash Disposal Site, see EIP's 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
5 / 11
Wells not shown Locations for the following wells are unavailable:

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No exceedances
One or more exeedances
No data available
Other designation
Well "halo" size corresponds to mean concentration. Please note that some wells may not be visible on the map due to overlapping locations.
Pollutants monitored and above guidelines
Tip: Click on a contaminant to view wells that have recorded exceedances. Click again to remove the filter. arsenic boron molybdenum sulfate thallium
Pollutants monitored and below guidelines
antimony barium beryllium cadmium chromium cobalt fluoride lead lithium mercury radium selenium
Pollutants not monitored
ammonia, copper, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, manganese, nickel, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Friday, October 21, 2022 10:23:35 AM EDT