Emhart Teknologies LLC
Outcome
Emhart Teknologies agreed to pay a $29,658 civil penalty after an automatic sump pump discharged approximately 1,800 gallons of dilute metal cutting coolant containing oil, copper, and lead — with 630 gallons reaching Sympaug Brook — causing a fish kill affecting seven species.
Details
Emhart Teknologies LLC — Metal Cutting Coolant Discharge and Fish Kill, Danbury, Connecticut (2021)
Outcome: Emhart Teknologies LLC agreed to pay a $29,658 civil penalty after an automatic sump pump at its Danbury facility discharged approximately 1,800 gallons of dilute metal cutting coolant from an aboveground storage tank, with roughly 630 gallons reaching Sympaug Brook and causing a fish kill that affected seven species of fish across the waterway.
Emhart Teknologies LLC operated a manufacturing facility in Danbury, Connecticut. An automatic sump pump at the facility activated and discharged a coolant mixture containing water, oil, copper, and lead — metals characteristic of metal cutting fluid used in machining operations — to Sympaug Brook without NPDES permit authorization. The discharge originated from an aboveground storage tank holding metal cutting coolant, and the combination of the toxic metals and oxygen-depleting characteristics of the oil-bearing coolant caused a fish kill that affected seven fish species in the receiving waterway.
The settlement, announced June 8, 2021, required Emhart to pay the $29,658 civil penalty. EPA Region 1 noted that the company completed cleanup of the brook shortly after discovering the spill and was cooperative during the enforcement investigation and settlement process — factors that are typically considered in penalty calculation and likely contributed to a reduced penalty from the calculated maximum. However, EPA proceeded with formal enforcement given the documented fish kill and unauthorized discharge.
The case illustrates the Clean Water Act enforcement risk that manufacturing facilities face from automated process systems — sump pumps, overflow valves, and emergency relief systems that can discharge process fluids to storm drains or surface waters without human operator awareness or intervention. Secondary containment structures, automated discharge monitoring alarms, and outfall monitoring are the standard controls that prevent this class of violation.
Primary Source: Danbury Manufacturing Company to Pay Penalty for Alleged Clean Water Act Violations | US EPA
How Crucible Prevents This
An automatic sump pump discharging coolant without operator awareness illustrates the consequence of inadequate secondary containment and automated discharge monitoring. Crucible's compliance calendar tracking SPCC plan review schedules and secondary containment inspection requirements, combined with pre-tool-check protocol reminders about automated discharge risk, addresses the process gap that allowed an automated system to discharge industrial coolant to surface waters before it was detected. The seven-species fish kill represents the maximum near-term ecological impact from this type of industrial discharge.
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