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  "authors": [
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  "authors": [
            
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    {
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    {
            
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      "author_department": "Water Services Regulation",
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      "author_department": "Water Services Regulation",
            
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      "author_email": "info@dws.gov.za",
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      "author_email": "info@dws.gov.za",
            
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      "author_name": "Department of Water and Sanitation",
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      "author_name": "Department of Water and Sanitation",
            
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      "author_organization": "Department of Water and Sanitation 
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      "author_organization": "Department of Water and Sanitation 
            
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(formerly Department of Water Affairs)",
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(formerly Department of Water Affairs)",
            
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      "author_surname": "DWS",
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      "author_surname": "DWS",
            
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  ],
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  "citation_title": "DWS (DEPARTMENT OF WATER AND SANITATION) (2026) 
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  "citation_title": "DWS (DEPARTMENT OF WATER AND SANITATION) (2026) 
            
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Green Drop Reports 2009-2025: South African municipal wastewater 
18
Green Drop Reports 2009-2025: South African municipal wastewater 
            
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management performance. Department of Water and Sanitation, Pretoria. 
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management performance. Department of Water and Sanitation, Pretoria. 
            
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Dataset.",
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      "contact_department": "Water Services Regulation",
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      "contact_department": "Water Services Regulation",
            
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      "contact_email": "info@dws.gov.za",
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      "contact_email": "info@dws.gov.za",
            
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      "contact_name": "Department of Water and Sanitation",
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      "contact_name": "Department of Water and Sanitation",
            
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      "contact_orgnization": "Department of Water and Sanitation 
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      "contact_orgnization": "Department of Water and Sanitation 
            
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(formerly Department of Water Affairs)"
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(formerly Department of Water Affairs)"
            
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    }
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    }
            
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  "data_classification": "static",
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  "data_classification": "static",
            
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  "data_collection_organization": "Department of Water and Sanitation 
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  "data_collection_organization": "Department of Water and Sanitation 
            
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(formerly Department of Water Affairs), Water Services Regulation",
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(formerly Department of Water Affairs), Water Services Regulation",
            
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  "dataset_language": "English",
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  "dataset_language": "English",
            
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  "dataset_license_url": 
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  "dataset_license_url": 
            
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"https://creativecommons.org/licenses/by/4.0/",
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"https://creativecommons.org/licenses/by/4.0/",
            
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  "email": "vanderlaanm@arc.agric.za",
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  "keywords": "Green Drop, Green Drop Certification, wastewater 
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  "keywords": "Green Drop, Green Drop Certification, wastewater 
            
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treatment works, wastewater quality, effluent compliance, Cumulative 
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treatment works, wastewater quality, effluent compliance, Cumulative 
            
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Risk Rating, CRR, Progress Assessment Tool, W2RAP, sanitation, 
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Risk Rating, CRR, Progress Assessment Tool, W2RAP, sanitation, 
            
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incentive-based regulation, Department of Water and Sanitation, South 
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incentive-based regulation, Department of Water and Sanitation, South 
            
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Africa",
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Africa",
            
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  "license": "Open (Creative Commons)",
            
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      "maximum_vertical_extent": "3450",
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      "maximum_vertical_extent": "3450",
            
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      "minimum_vertical_extent": "0"
            
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  "name": 
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  "name": 
            
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-2009-2025-south-african-municipal-wastewater-management-performance",
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-2009-2025-south-african-municipal-wastewater-management-performance",
            
63
  "notes": "This collection of reports brings together the Green Drop 
63
  "notes": "This collection of reports brings together the Green Drop 
            
64
Certification reports published by the Department of Water Affairs, 
64
Certification reports published by the Department of Water Affairs, 
            
65
later the Department of Water and Sanitation (DWS), between 2009 and 
65
later the Department of Water and Sanitation (DWS), between 2009 and 
            
66
2026. Green Drop Certification was introduced on 11 September 2008 as 
66
2026. Green Drop Certification was introduced on 11 September 2008 as 
            
67
an incentive-based regulation programme for municipal wastewater 
67
an incentive-based regulation programme for municipal wastewater 
            
68
quality management, and was paired with risk-based regulation using 
68
quality management, and was paired with risk-based regulation using 
            
69
the Cumulative Risk Rating (CRR) of each wastewater treatment works, 
69
the Cumulative Risk Rating (CRR) of each wastewater treatment works, 
            
70
calculated from design capacity, capacity exceedance, effluent quality 
70
calculated from design capacity, capacity exceedance, effluent quality 
            
71
failures and technical skills. Full Green Drop audits assessed process 
71
failures and technical skills. Full Green Drop audits assessed process 
            
72
control, monitoring, sample credibility, data submission, effluent 
72
control, monitoring, sample credibility, data submission, effluent 
            
73
quality compliance, failure response, bylaws, treatment capacity and 
73
quality compliance, failure response, bylaws, treatment capacity and 
            
74
asset management, while Progress Assessment Tool (PAT) reports in 
74
asset management, while Progress Assessment Tool (PAT) reports in 
            
75
intervening years tracked CRR trends. Results were reported per 
75
intervening years tracked CRR trends. Results were reported per 
            
76
wastewater system as report cards, with provincial and national 
76
wastewater system as report cards, with provincial and national 
            
77
summaries. The 2009 assessments covered 98 municipalities and 444 
77
summaries. The 2009 assessments covered 98 municipalities and 444 
            
78
systems (average Green Drop score 37%); the 2010/11 cycle covered 156 
78
systems (average Green Drop score 37%); the 2010/11 cycle covered 156 
            
79
municipalities and 821 systems (average 45%, 40 Green Drop awards); 
79
municipalities and 821 systems (average 45%, 40 Green Drop awards); 
            
80
the 2014 PAT assessed 824 municipal plants for the period 1 July 2012 
80
the 2014 PAT assessed 824 municipal plants for the period 1 July 2012 
            
81
to 30 June 2013 and reported an average CRR deviation of 71.7%. The 
81
to 30 June 2013 and reported an average CRR deviation of 71.7%. The 
            
82
2022 report presented the full audit of 995 wastewater treatment works 
82
2022 report presented the full audit of 995 wastewater treatment works 
            
83
(municipal, Department of Public Works and private) for 1 July 2020 to 
83
(municipal, Department of Public Works and private) for 1 July 2020 to 
            
84
30 June 2021, and the 2023 Green Drop Progress Assessment report 
84
30 June 2021, and the 2023 Green Drop Progress Assessment report 
            
85
covered 1 July 2021 to 30 June 2022. The 2025 Green Drop National 
85
covered 1 July 2021 to 30 June 2022. The 2025 Green Drop National 
            
86
Report, released on 31 March 2026, presented the full audit of 848 
86
Report, released on 31 March 2026, presented the full audit of 848 
            
87
municipal wastewater systems in 144 Water Services Authorities for the 
87
municipal wastewater systems in 144 Water Services Authorities for the 
            
88
2023/24 municipal financial year; 14 systems achieved Green Drop 
88
2023/24 municipal financial year; 14 systems achieved Green Drop 
            
89
certification and the proportion of systems in a critical state 
89
certification and the proportion of systems in a critical state 
            
90
increased from 39% in the 2022 report to 47%. The collection comprised 
90
increased from 39% in the 2022 report to 47%. The collection comprised 
            
91
the full 2009, 2022, 2023 and 2025 reports and the introductory and 
91
the full 2009, 2022, 2023 and 2025 reports and the introductory and 
            
92
national overview chapters of the 2011 report and the 2014 Progress 
92
national overview chapters of the 2011 report and the 2014 Progress 
            
93
Report. Data were provided as published PDF reports; system-level 
93
Report. Data were provided as published PDF reports; system-level 
            
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tables were not extracted into machine-readable form.",
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tables were not extracted into machine-readable form.",
            
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    "description": "The Department of Water and Sanitation is the 
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    "description": "The Department of Water and Sanitation is the 
            
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custodian of South Africa's water resources. It is primarily 
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custodian of South Africa's water resources. It is primarily 
            
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responsible for the formulation and implementation of policy governing 
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responsible for the formulation and implementation of policy governing 
            
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this sector.\r\n\r\nWhile striving to ensure that all South Africans 
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this sector.\r\n\r\nWhile striving to ensure that all South Africans 
            
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gain access to clean water and dignified sanitation, the department 
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gain access to clean water and dignified sanitation, the department 
            
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also promotes effective and efficient water resources management to 
105
also promotes effective and efficient water resources management to 
            
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ensure sustainable economic and social development.",
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ensure sustainable economic and social development.",
            
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