NC0024210_201 Facilities Plan_20010214

DIVISION OF WATER QUALITY
February 14, 2001
To: Jeff Masten
Local Government Assistance Unit
From: Susan A. Wilson, Environmental Engineer A.
NPDES Unit
Subject: High Point Eastside - Effluent Discharge Relocation
201 Facilities Plan -Amendment
NPDES No. NC0024210
Guilford County
I have reviewed 201 Wastewater Facilities Plan Amendment submitted by Hobbs.
Upchurch, and Associates on behalf of the Piedmont Triad Regional Water Authority.
The proposed project includes the relocation of the High Point Eastside effluent outfall
from Richland Creek to the Deep River. DENR and the Division required this due to the
potential for nutrient enrichment in the Richland Creek arm with the impoundment of
Randleman Lake.
The NPDES Unit of the Division of Water Quality has no conceptual objections to
routing of the force main along Richland Creek to the Deep River (which will eventually
be flooded after construction of Randleman Dam). However, the following concerns
should be addressed:
The submitted material does not indicate that the pump station/force main will (or
will not) need to be sized to overcome the head pressure of the lake. This should be
clarified in the document (it is unclear to me how normal pool elevation will affect
the outfall when the dam is built).
This Unit has concerns regarding the ability to detect leaks in the force main. We
recommend that a plan be in place for periodic leak detection.