Best Practices in Operation and Maintenance of Waste Water Treatment Presenters: Erin Parenzee & Jane Mokhethi For Water Services Forum – 21 February 2018

Presentation Outline Introduction – Rand Water footprint Bulk Sanitation – the department Bulk Sanitation – value chain Public Partnership Projects Bulk Sanitation – best practice Lessons Learnt Successes & Challenges

RANDWATER Footprint Rand Water is a public utility wholly owned by government (DWS) Abiding by the Water Services Act (Act 108 of 1997) KEY Figures Bulk Water supplier - 3 720Mℓ/d Consumers - Over 11 million Total Pipeline Length - 3 056 km Total Number of Reservoirs - 58 Supply Area - 18 000 km2 Additional 13 000 km2 area of service Equals significant reach RW vision: To be a provider of sustainable, universally competitive water and sanitation solutions for Africa

BULK SANITATION department Bulk Sanitation dept. formed to address: impact pollution will have on the quality and treatment cost of potable water – as main polluters in RW catchment identified as waste water treatment works (WwTW’s) discharge (as per RW Catchment Management Programme - CMP) The primary focus of Bulk Sanitation therefore is to:   Extend Rand Water’s CMP; Conduct assessments of the WwTW’s  in the catchment, Report on these findings & Provide site-specific recommendations to the respective municipalities to guarantee effluent compliance – as well as provide technical support

BULK SANITATION value chain Management, Operation & Maintenance of Wastewater Treatment Plants Industrial Effluent Monitoring Programme Refurbishment of Wastewater Treatment Plants Effluent Re-use Capacity building through on-job training BULK SANITATION VALUE CHAIN

Public Partnership Projects OPERATIONS Mogale City L.M. – O&M WwTW Thembisile Hani L.M. – O&M WwTW Westonaria L.M. (now Rand West) – O&M WwTW Emfuleni LM – Advisory services WwTW’s Innovation – Biogas, Bio enzyme & AMD reuse to potable drinking water project MAINTENANCE Mafube L.M. – Extension of WWTW in Namahadi/Frankfort (Phase 1- construction of 2 pump stations and Rising main) Emalahleni L.M. – Upgrade of Klipspruit WWTW Victor Khanye L.M. – Upgrading of Delmas and Botleng WWTW’s Westonaria L.M. (now Rand West) – Extension of WWTW Emfuleni LM – Extension of Sebokeng WwTW’s Midvaal L.M. – Extension of Meyerton WwTW

Bulk Sanitation - BEST practice Often adopted as a standard way of conducting certain activities “…method/technique which is viewed as the most efficient means of undertaking an activity…” Can evolve & improve in similar future activities Best Practice

Bulk Sanitation - BEST practice Improving the life & health of the people by ensuring that the final effluent is of good quality and is free of micro-organisms posing threat to human health Preserving water resources and protecting the environment by ensuring compliance of effluent with legislation (WUL) Monitoring and reporting the WwTW’s performance to the owner & the DWS To provide specific recommendations to the respective municipalities that guarantees system improvement Continuous improvement and refinement GUIDING PRINCIPLES

CONTINUOUS IMPROVEMENT Bulk Sanitation - BEST practice Determine baseline for WwTW CONTINUOUS IMPROVEMENT Operational plan Technical Support Knowledge development Records

Bulk Sanitation - BEST practice Historical data/records Institutional knowledge from personnel Situational analysis comparative to legislation Water Use Licence; Green Drop Determine baseline for WwTW Close performance gaps identified Daily routines/inspections Skills inventory of personnel Determine WwTW Operational plan Leverage skills/knowledge of team Process Control/Optimisation Sampling Troubleshooting Technical support

Bulk Sanitation - BEST practice Skills Transfer Training programme with goals Green Drop Record keeping Meetings (feedback sessions) Knowledge development O&M manuals Standard Operating Procedures Sampling regime/schedule Water Quality Failure Response Plan W2RAP GDS Records

Bulk Sanitation - BEST practice Plant status assessment Status quo report Recommendations Priority List Draw Asset/ spares registry Develop maintenance plan Load the plan into Maximo Maintenance Planning & Scheduling Implementation of Annual maintenance plan Generation of Job Cards Adherence to maintenance schedule (100%) Monthly report Annual Shut-downs Preventative Maintenance

Bulk Sanitation - BEST practice 80/20 Rule 80% Planned maintenance and 20% unplanned maintenance Fault Report Book Fault description; Impact; Occurrence Time Response to Breakdowns (within 24hrs) Fault reporting Morning Meetings Generate Job Card Monthly report Breakdowns Plant Status assessment and recommendations CAPEX allocation System upgrades Introduction of new technologies New innovation to improve performance Plant improvement Priority list Technical skills transfer Refurbishment/ Upgrades

Lessons Learnt Have CAPEX Budget assigned to Rand Water Buy-ins from Municipality employees for easy skills transfer. Have constant monthly meetings with all stakeholders Turnaround time Plant availability/ performance

Successes & Challenges Lack SUCCESSES Water quality improvements Green drop score increases Training programme Operations material implemented Minimisation of sewer network spillages Reputational damage repair CHALLENGES Security (vandalism & theft) Lack of technical skills Current design & capacity of WwTW’s Political interferences Ever-changing institutional arrangements State of bulk sanitation reticulation systems and treatment infrastructure Lack