Update on Cliffside Sanitary District

Mr. Brian Tripp of WK Dickson told the Board that a grant of was received from the North Carolina Department of Environmental Quality to perform a Cliffside Sanitary District (CSD) Merger/Consolidation Engineering Report to identify the current Waste Water Treatment Plant (WWTP) deficiencies & alternatives for providing future wastewater service through the consolidation with other regional waste water treatment facilities or by modifications to the existing CSD WWTP.

Seven alternatives were identified and evaluated. Four alternatives were rejected due to the inability to provide acceptable treatment for National Pollutant Discharge Elimination System (NPDES) permit
compliance, obvious excessive capital & operating costs exceeding other alternatives, or technical considerations. These were:
• No Action
• Decentralization
• Optimization of the existing WWTP
• Optimization of the existing WWTP in conjunction w/ land application

The remaining feasible alternatives were:
Alternative Capital Cost Total Present Worth Cost
Replacement of the existing WWTP with a package treatment system $4,783,000
$7,840,227
Interconnection with the Town of Boiling Springs $6,740,000 $10,145,853
Interconnection with the Town of Forest City $9,230,000 $12,585,370

With each of the feasible alternatives, it was recognized that the existing CSD collection
system will require repairs to the sewer collection system & implementation of corrective
measures to reduce excessive infiltration and inflow (I&I). Elimination of peak flow
events currently experienced by the CSD WWTP is essential for all alternatives.

Mr. Tripp said there is a need to develop a cost for addressing the collection system I&I
because addressing I&I appears to be one of the driving factors in making CSD
“attractive” for some other entity to take over. Discussions have been held with Boiling
Springs & Forest City. And, while both were open to listening, neither found the situation
appealing to them. A plan to use the $100k from the legislature has been developed to
investigate the problems associated w/ the CSD collection system. An additional $150k
grant to aid in this investigation was denied by NC DEQ.

At the end of all three (3) phases of the investigation, the intent was to have a full picture
and cost of what it will take to address CSD treatment & collection system deficiencies
to address the “Infrastructure Management” component of NC DEQ definition of a viable
wastewater system. The third phase of the investigation was not funded due to Cliffside’s
lack of “Organizational Management” and “Financial Management.”


*From the minutes of the April 9, 2017 County Commissioners Meeting