Akron Water Pollution Control Station No Feasible Alternative

treatment. Other bases supporting a finding of no feasible alternative may also
be available on a case-by-case basis.
As a result, the CSO Policy expressly provides that a CSO related bypass may be authorized
within an NPDES permit if the necessary demonstration is set forth within the CSO long-term
control plan. This necessary demonstration is set forth in the City’s LTCP. An additional,
updated demonstration is set forth in this report.
2.3. Background
2.3.1. Facilities Planning Efforts
The City of Akron is proactive in their management and planning of wastewater infrastructure.
Planning studies prepared in recent years are listed below. Documents 5, 7, 9, 10, and 15
present fundamental elements of the City’s proposed Long Term Control Plan selected
alternative and demonstrate the need to maintain the secondary bypass conduit for limited use.
This NFA report includes synopses from these previously submitted documents.
1) The Akron Facilities Plan – 1980, this document is a plan for improving and
upgrading the entire wastewater infrastructure from collection through
treatment and disposal.
2) City of Akron Activated Sludge Plant Stress Test – 1994, this test concluded
that flows over 110 MGD flood the aeration tanks and causes degradation of
the final clarifiers. Hydraulic capacity is limited by the aeration tanks and final
clarifiers.
3) City of Akron Activated Sludge Plant Stress Test – 1997, this test concluded
flow must not exceed 120 MGD for Secondary treatment to be effective.
During the test, it was noted that adding polymer did not have any effect on
final clarifier suspended solids.
4) CSO System Wide Study – 1995, this study concluded that streams receiving
CSO discharge would not improve to known water quality standards if all
CSO discharges were eliminated. The physical conditions of the streams
would not be able to attain targeted aquatic life use even if all CSOs were
eliminated.
5) Facilities Plan ’98 – 1998, this plan is an update to the 1980 Facilities Plan. It
includes alternatives for improving the combined sewer system and means of
reaching water quality requirements.
6) City of Akron CSO System Wide Study – Phase II – 1998, this study
documents the combined sewer system operation during a storm event,
attainability of CSO receiving waters, and biological and chemical impacts of
the CSOs in and around the combined sewer flows.
7) Facilities Plan ’98 Alternatives – 1999, this is a summary of five Integrated
Alternatives.
8) Akron, Ohio WPCS Primary Settling Tank Flow Study – 1996, this study
determined that the primary settling tanks could have a peak flow of
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