| Incident
Description |
 |
Location |
Ketchikan
Public Utilities drinking water treatment plant on Ketchikan Creek,
approximately one half mile upstream from tidewater. |
| Product/Quantity |
Between
24 and 28 gallons of sodium hypochlorite solution was released
into the creek. The amount of product spilled was determined by
the staff at the water treatment plant. Sodium hypochlorite is
the chemical in chlorine bleach. It is used to disinfect drinking
water supplies and to treat waste water before it is released into
the environment. The concentration of the solution leaving the
drain pipe was 0.8 ppm. Concentrations in excess of 0.1 ppm can
be lethal to fish. |
| Cause |
A
PVC pipe ruptured due to a metering pump malfunction. |
| Time/Date
of Spill |
6/25/2005,
approximately 7:00 p.m |
| Situation
Reports |
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| For
more information |
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