Question NW3811 to the Minister of Water and Sanitation

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07 December 2015 - NW3811

Profile picture: Balindlela, Ms ZB

Balindlela, Ms ZB to ask the Minister of Water and Sanitation

(1)What are the locations of the 200 monitoring sites sampled on a monthly basis to assist in decision making within the Inkomati-Usuthu Catchment Area; (2) whether as a result of the monitoring any problem areas have been identified; if so, which areas; (3) what (a) are the names of the wastewater treatment plants in the specified area and (b) is the Green Drop status of each specified plant; (4) what was the outcome of river health monitoring assessments in the specified area; (5) whether any steps have been taken against polluters within the specified area; if not, why not; if so, what are the (a) names of the polluters and (b) relevant details of any criminal charges that have been laid against the specified polluters?

Reply:

(1) Refer to Annexure A for locations of the 200 monitoring sampled sites within the Inkomati-Usuthu Catchment Area.

(2) Refer to the table below for problem areas that have been identified:

Catchment

Specified Area

SABIE-SAND CATCHMENT

Sabie Town

 

Mkhuhlu

 

Dwarsloop

 

Thulamahashe

 

Bushbuckridge

 

Acornhoek

CROCODILE RIVER CATCHMENT

Emthonjeni

 

WatervalBoven

 

Ngodwana

 

White River

 

Rocky's drift

 

Kabokweni

 

Kanyamazane

 

Barberton

 

Louieville

 

Malelane

 

Hectorspruit

 

Komatipoort

UPPER KOMATI CATCHMENT

Seepage from Union Colliery

 

Tributary of boesmanspruit at Tselentis Colliery

 

Downstream of Tselentis Discard Dumps

 

Coastal fuel @ Witkrans Seepage

 

Carolina sewage Discharge point

 

Elukwatini

LOWER KOMATI CATCHMENT

Driekoppies

 

Tonga Hospital WWTW

 

Tonga Ponds

 

Ka-Maqhekeza

USUTHU CATCHMENT

Piet Retief

 

Heyshope Dam (Downstream of Kangra mine)

 

Amsterdam

 

Assegai

(3) Refer to the table below for the names of the wastewater treatment plants in the specified area:

Requesting the Honorable Member to note that the report of the Blue and Green Drop reports, has been submitted to Cabinet for approval in line with the exercise of executive authority in terms of section 85 of the Constitution hence the information cannot be provided at this point.

Catchment

Name of the wwtw plants

SABIE-SAND CATCHMENT

Sabie WWTW

 

Hazyview WWTW

 

Mkhuhlu WWTW

 

Dwarsloop

 

Thulamahashe

CROCODILE RIVER CATCHMENT

Emthonjeni sewage

 

WatervalBoven sewage

 

(Sappi Ngodwana) Bambi on Elands Rriver

 

White River WWTW

 

Rocky's drift sewage

 

Kabokweni WWTW

 

Kanyamazane WWTW

 

Barberton WWTW

 

Louieville WWTW Final Discharge

 

Mhlatiplaas WWTW final exit

 

Mhlatikop WWTW

 

Hectorspruit WWTW

 

Komatipoort WWTW

UPPER KOMATI CATCHMENT

Carolina WWTW

 

Elukwatini sewage Pump Station

 

U/S of Elukwatini Pump Station

 

ElukwatiniWWTW

LOWER KOMATI CATCHMENT

Shongwe Hospital WWTW

 

Tonga Hospital WWTW

 

Tonga Ponds

 

Ka-Maqhekeza Plaza sewage package plants

USUTHU CATCHMENT

Mkhondo WWTW

 

Amsterdam WWTW

(4) The selection of monitoring sites for river health is completely different from chemical monitoring program. While the selection of monitoring sites for chemical monitoring program is activity based and seeks to establish the impact of land-based activities on the quality of water resources, the selection of monitoring sites for river health purposes looks at the reference conditions that best mimic the natural conditions of the river before development took place. The monitoring points for these respective monitoring programs are therefore far apart from each other in most instances and although it is possible to attribute the health of the river to the quality of the resource, it is not always accurate since it is not activity-based. Hence the number of monitoring sites for the River Health programme are fewer compared to those for chemical monitoring. The eco-status of the various catchment within the Inkomati-Usuthu Water Management Area are summarised below per catchment.

Sabie Catchment – 15 of 20 sites were monitored along the length of the Sabie River (mainstream) from source till it enters the Kruger National Park was recorded to be at category B and even A in some places which is almost pristine. The head-waters of the Sabie River showed degraded eco-status and improved as the river continues downstream, contrary to the norm where the head-waters are more pristine and tend to deteriorate as the river progresses downstream. A detailed study of the upper reaches of the catchment revealed that the impact on the eco-status in the head-waters emanates from the poor maintenance of the road networks in the forestry plantations causing high sedimentation and increased turbidity.

The moderately impacted to near pristine eco-status is attributed to the high flow of water in this river which provides adequate dilution for partially treated waste water discharged into the river. However, in areas where wastewater treatment works discharge partially treated waste, there has also been impact associated with the low levels of dissolved oxygen that results from the high organic loads that utilize oxygen to be broken down. This phenomenon is shown by the high prevalence of air breathing taxa (micro-organisms) recorded and conversely low prevalence of those taxa that get dissolved oxygen from water. These taxa were negatively affected by low levels of dissolved oxygen which occurs as a result of high organic loads found in partially treated domestic waste water. The Sabie River Eco-Status study was conducted in 2012/13.

Crocodile Catchment – 15 of 18 sites were monitored along the length of the Crocodile River (main stem) from source till it enters Mozambique was recorded to be at category C and with 3 sites at category B/C. The level of development in this catchment is extremely high and composed of industry, mining, irrigated agriculture and wastewater treatment works. Two of the tree sites that are rated at category B/C are just upstream of Nelspruit. From Nelspruit down towards the border of Mozambique, the eco-status remains at category C. This is the stretch that contains the highest number of wastewater treatment works in this catchment. The Crocodile River Eco-Status study was conducted in 2013/14.

Komati Catchment – 23 of 31 sites were monitored along the length of the Komati River (mainstream) from source till it enters Mozambique was recorded to be at category C and with 5 sites recording B category and 3 sites at category D. The level of degradation in this catchment is higher due to mining development but not necessarily wastewater treatment works. There are actually fewer wastewater treatment works in this catchment than in both the Sabie and the Crocodile Catchments. The Komati River Eco-Status study was conducted in 2014/15.

Usuthu Catchment – Assessment currently underway and will be completed in the first quarter of 2016/17 financial year.

(5) Yes, steps have been taken against those activities that negatively impact on the water resources including issuing of notices and directives as well as opening of criminal cases and the details of the latter are presented in the table below:

Name of the Polluter (a)

Case Number

Reasons for such actions

Maviljan Ponds (Bushbuckridge Municipality)

Case 127/08/2014

Continuous discharge of partially treated sewage into a water resource.

Thulamahashe WWTW (Bushbuckridge Local Municipality)

Case 89/02/2014

Continuous discharge of partially treated sewage into a water resource

Carolina WWTW (Chief Albert Luthuli Local Municipality)

Case 57/09/2015

Continuous discharge of partially treated sewage into a water resource

Hillsview Pump Station

Case 35/07/2014

Continuous overflow of raw sewage into the water resource.

Twin City Hazyview (Mbombela Local Municipality)

Case 112/02/2014

Continuous overflow of raw sewage into the water resource

TTC manhole (ThabaChweu Local Municipality)

Case 11/05/2014

Continuous overflow of raw sewage into the water resource

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