State of the Bay Report 2011-Final.pdf - Anchor Environmental

State of Saldanha Bay & Langebaan Lagoon 2011
Activities & discharges
Cape Reef Products
TNPA
Arcelor Mittal
Namaqua Sands
Abattoir
Duferco
These discharges reportedly often place the plant under considerable stress and result in the
discharge of substandard effluent (CSIR 2002).
Until recently the Langebaan WWTW did not discharge any effluent into the sea as all of it
was used it to irrigate the local golf course. However, increasing volumes of effluent received by this
plant is yielding more water than is required for irrigation and some of this is now discharged into
the Bay. There are nine sewage pump stations in Saldanha Bay and two conservancy tanks, all of
which are situated on the western border of Small Bay. The conservancy tanks are positioned
adjacent to the Yacht Club. There are eighteen sewage pump stations in Langebaan situated
throughout the town, many of which are near the edge of the lagoon, and three conservancy tanks
spread around the edge of the lagoon at Oostewal, Stofbergsfontein and Oudepos (Figure 3.13).
Sewage effluent can enter the Saldanha/Langebaan marine environment via three routes,
namely:
Discharge of treated sewage effluent in the Bok River which drains into Small Bay;
Overflow of sewage pump stations as a result of pump malfunction of power failures;
Seepage or overflow from septic or conservancy tanks.
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