(1)(a)The refurbishment of Groblersdal Waste Water Treatment Works (WWTW) within Sekhukhune District Municipality (DM) was completed in December 2015, however; the practical commissioning of the refurbished work was done during June 2016 and the waste water treatment plan is functional. The waste water treatment occasionally experience breakdown of aerobic mixer due to the plant being overloaded and the contractor who was refurbishing the plant attended to the breakdown as part of retention period.
(1)(b) My Department did not take steps in assisting with completion since both the Sekhukhune DM and Lepelle Northern Water Board did complete the refurbishment work, and is operational. The practical commission was however done in June 2016.
(1)(c) My Department Regional Office: Limpopo visited Groblersdal Waste Water Treatment Works on 10 May 2017 and the following findings were made:
(2) Yes, my Department monitors the quality of the water in the Olifants River. Refer to the Table 1 below which is the summary of the effluent quality discharged by Groblersdal Wastewater Treatment works, downstream and upstream of the Works:
Table 1
Sampling Dates |
Variables |
General Limits |
Upstream of WWTW |
Downstream of WWTW |
January 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8 (mg/l) |
8.3 0.622(mg/l) 0.01(mg/l) |
8.5 0.572(mg/l) 0.01(mg/l) |
April 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.6 0.595(mg/l) 0.01(mg/l) |
|
June 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.4 1.352(mg/l) 0.01(mg/l) |
8.2 1.269(mg/l) 0.01(mg/l) |
July 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.1 1.221(mg/l) 0.121(mg/l) |
|
August 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.3 0.804(mg/l) 0.03(mg/l) |
7.8 1.168(mg/l) 0.021(mg/l) |
September 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.4 0.783(mg/l) 0.122(mg/l) |
|
October 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.1 3.411(mg/l) 0.01(mg/l) |
|
December 2016 |
pH-Diss-Water NO3+NO2-N-Diss-Water PO4-P-Diss-Water |
5.5-9.5 15(mg/l) 8(mg/l) |
8.4 0.29(mg/l) 0.046(mg/l) |
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