Superfund Site:

MASON CITY COAL GASIFICATION PLANT
MASON CITY, IA

Superfund Site Profile

Site Contacts

Community Involvement Coordinator
Pamela Houston
(913) 551-7699

Remedial Project Manager
Diana Engeman
(913) 551-7746

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Site Location

Street Address:
5TH ST, BETWEEN DELAWARE & PENNSYLVANIA, MASON CITY, IA 50401

Background

The 2.3-acre Mason City Coal Gasification Plant Site is located in downtown Mason City, Iowa. Beginning in the early 1900s, the site was the location of a manufactured gas plant which produced gas for lighting and heating purposes in the Mason City area. When natural gas became available, the plant was decommissioned and subsequently demolished. Residues from the gas manufacturing processes, commonly referred to as coal tar, were left on-site and resulted in soil and groundwater contamination. In June 1984, the city began excavation at the site for the installation of a new sewer line. During this excavation, coal tar was discovered ...
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