Pittsburgh Water and Sewer Authority
Outcome
Pittsburgh Water and Sewer Authority pleaded guilty to one count of Clean Water Act NPDES permit violation for discharging sludge into the Allegheny River and seven counts of making false statements in discharge reports, agreeing to pay $500,000 into a self-funded compliance program under three years DOJ supervision; former plant supervisor indicted separately.
Details
Pittsburgh Water and Sewer Authority — Criminal Sludge Discharge and False Reports (2020)
Outcome: Pittsburgh Water and Sewer Authority pleaded guilty to one count of NPDES permit violation for discharging clarifier sludge into the Allegheny River and seven counts of making false statements in written discharge reports, agreeing to pay $500,000 into a self-funded compliance monitoring program under three years of Department of Justice supervision; a former plant supervisor was separately indicted for conspiracy and permit violations.
Between 2010 and May 2017, employees and supervisors at Pittsburgh Water and Sewer Authority's (PWSA) Aspinwall Drinking Water Treatment Plant diverted and discharged clarifier sludge into the Allegheny River by manipulating electronic and manual flow controls at facility infrastructure designated FM-5, routing sludge to Outfall 012 where it discharged to the river. At various points, visible plumes of discolored water, some several hundred feet long, and solids were observed in the Allegheny River downstream of the outfall.
The criminal concealment element was significant: PWSA employees and supervisors submitted written reports to regulators that contained false statements about the amount of sludge being sent to the Allegheny County Sanitary Authority (ALCOSAN) for proper treatment, while in fact routing substantial volumes to the river discharge point. When flow meters at two clarifier basins failed in late 2014 and early 2015, and the FM-5 meter also failed by early 2016, supervisors instructed operators to estimate sludge volumes rather than repair the meters — and these estimates were reported as measured data in mandatory regulatory submissions.
The guilty plea, entered November 2020, required PWSA to pay $500,000 into a self-administered compliance program subject to annual audits submitted to DOJ and EPA over a three-year probation period. Former Aspinwall Plant supervisor Glenn Lijewski was separately indicted on conspiracy and individual Clean Water Act violation charges for his role in directing the unauthorized discharges.
Primary Source: Pittsburgh Water and Sewer Authority Pleads Guilty to Clean Water Act Violations | DOJ
How Crucible Prevents This
The Pittsburgh case combines two distinct failure modes: operational (sludge discharge when flow meters failed) and institutional (false statements in reports about sludge volumes). Crucible's instinct-observer hook documenting operational decisions — particularly decisions to estimate rather than measure flow when instruments fail — would create an evidentiary record of that decision. The false statements in written reports represent the coverup that turns an operational failure into a criminal case. Crucible's decision log creating a transparent, timestamped record of operational choices prevents the concealment pattern that escalated Pittsburgh's violation from civil to criminal.
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