Between 1979 and 2002, Ohio EPA documented 22 fish kill incidents that resulted in a total of 147,587 fish killed in the watershed.  The largest number of fish were killed in two separate spills from Champaign Landmark in Mechanicsburg.  The first spill was ammonia in 1983, which killed 52,134 fish and the second was liquid fertilizer in 1987 which killed 36,767 fish both in Little Darby Creek.  The remainder of fish kills are documented in Appendix L. 

In addition to the fish kills in the watershed, the Ohio EPA Division of Emergency and Remedial Response documented 129 spills between 1989 and 2002.  Ohio EPA noted that spills often go unreported which can cause considerable harm to the Darby streams.  An example is of the spill in Milford Center in 2000 which was not reported for over 4 days but resulted in over 24,000 fish killed. 

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Last updated: November 18, 2008.