{"query_echo":{"q":"","filters":{"analysis_type":["hydrocensus"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'hydrocensus' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":2,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=hydrocensus","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"wwfza-000019","url":"https://climateinsightsdirectory.org/document/wwfza-000019","title":"Establishing a citizen-science groundwater monitoring network for Brackenfell, Western Cape","publisher":{"name":"WWF South Africa","organization":"wwf-south-africa"},"document_type":"report","language":"en","date_published":"2022-04-14","source_url":"https://wwfafrica.awsassets.panda.org/downloads/3_annexure_3_appendix_a_brackenfell.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report describes the creation of a groundwater monitoring network in Brackenfell, Western Cape, commissioned by WWF South Africa and implemented by GEOSS South Africa. Following a significant increase in borehole drilling during the 2015-2019 drought, the project conducted desktop assessments and a hydrocensus of 111 properties to identify groundwater use patterns. The study found that most boreholes were drilled between 2016 and 2020, targeting the Tygerberg Formation. Four Solinst Leveloggers were deployed in private and public boreholes to track water levels, with data integrated into the Table Mountain Water Source Area Groundwater Dashboard. Key stakeholder concerns identified include high iron content in the water and risks of over-abstraction.","ai_generated":true,"unit":"wwfza-000019#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The 2015-2019 drought led to a significant increase in the number of boreholes and wellpoints in the Western Cape and City of Cape Town, resulting in an unquantified rise in groundwater abstraction volumes.","ai_generated":true,"unit":"wwfza-000019#insight-1","date_modified":"2026-10-23"},{"text":"A hydrocensus of 111 properties in Brackenfell revealed that 33.3% of visited properties were available for surveys, identifying 14 boreholes and 23 wellpoints. Most of these were drilled between 2016 and 2020, indicating they were a response to the drought.","ai_generated":true,"unit":"wwfza-000019#insight-2","date_modified":"2026-10-23"},{"text":"Boreholes in the Brackenfell area typically range from 30 to 115 metres in depth, primarily targeting the quartzitic sandstones of the Tygerberg Formation.","ai_generated":true,"unit":"wwfza-000019#insight-3","date_modified":"2026-10-23"},{"text":"Stakeholders expressed significant concerns regarding groundwater quality, specifically the presence of high iron content which caused red staining on walls, as well as fears regarding over-abstraction and resource depletion.","ai_generated":true,"unit":"wwfza-000019#insight-4","date_modified":"2026-10-23"},{"text":"A monitoring network consisting of four Solinst Leveloggers was established in boreholes at private residences, schools, and industry. Initial data from March 2022 showed rest water levels between 9 and 28 mbgl and electrical conductivity (EC) values between 94.3 and 161 mS/m, which are classified as \"good\".","ai_generated":true,"unit":"wwfza-000019#insight-5","date_modified":"2026-10-23"},{"text":"Monitoring data is manually downloaded and uploaded to the Table Mountain Water Source Area Groundwater Dashboard (groundwaterinfo.africa) to provide visibility to stakeholders on seasonal fluctuations and the impact of regional abstraction.","ai_generated":true,"unit":"wwfza-000019#insight-6","date_modified":"2026-10-23"}],"climate_tags":["drought","water quality","water-management"],"geography_discussed":["City of Cape Town","South Africa"],"frame_perspective":[],"analysis_type":["hydrocensus","desktop assessment","stakeholder engagement","field monitoring"]},{"id":"wwfza-000184","url":"https://climateinsightsdirectory.org/document/wwfza-000184","title":"Establishing a citizen-science groundwater monitoring network for Noordhoek, Western Cape","publisher":{"name":"WWF South Africa","organization":"wwf-south-africa"},"document_type":"report","language":"en","date_published":"2022-04-14","source_url":"https://wwfafrica.awsassets.panda.org/downloads/3_annexure_3_appendix_c_noordhoek.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report details the creation of a groundwater monitoring network in Noordhoek, Western Cape, commissioned by WWF South Africa and implemented by GEOSS South Africa. Following a drought from 2015 to 2019, the area saw a surge in private boreholes and wellpoints. The project involved a desktop study, a hydrocensus of 158 properties, and the deployment of four Solinst dataloggers in private boreholes. Key findings highlight stakeholder concerns regarding E-coli contamination from soakaway systems and the potential for seawater intrusion. Data from the network is integrated into the Table Mountain Water Source Area Groundwater Dashboard to provide public visibility of water level trends and seasonal fluctuations.","ai_generated":true,"unit":"wwfza-000184#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The 2015-2019 drought in the Western Cape and City of Cape Town led to a significant increase in the number of boreholes and wellpoints, particularly in the Noordhoek area, which is located within the Table Mountain Strategic Water Source Area (TM-SWSA).","ai_generated":true,"unit":"wwfza-000184#insight-1","date_modified":"2026-10-23"},{"text":"A hydrocensus of 158 properties in Noordhoek revealed that 21.5% of visited residents completed surveys, identifying 18 boreholes and 16 wellpoints. Most of these were drilled between 2016 and 2020, with depths ranging from 3 to 80 metres, targeting the Springfontyn Formation and the Table Mountain Group (TMG) aquifer.","ai_generated":true,"unit":"wwfza-000184#insight-2","date_modified":"2026-10-23"},{"text":"Stakeholders expressed significant concerns regarding groundwater quality, specifically high levels of E-coli attributed to the lack of a sewage pipeline system and reliance on soakaways and septic tanks, as well as high iron and salt content.","ai_generated":true,"unit":"wwfza-000184#insight-3","date_modified":"2026-10-23"},{"text":"A monitoring network consisting of four Solinst dataloggers was deployed in private boreholes between January and March 2022. Initial data indicates water levels between 6 and 23 mbgl and electrical conductivity (EC) values between 128 and 171 mS/m, which are classified as 'marginal' per DWAF (1998) guidelines.","ai_generated":true,"unit":"wwfza-000184#insight-4","date_modified":"2026-10-23"},{"text":"Monitoring data is manually downloaded and uploaded to the Table Mountain Water Source Area Groundwater Dashboard (groundwaterinfo.africa) to allow users to track seasonal fluctuations and the impact of regional groundwater abstraction.","ai_generated":true,"unit":"wwfza-000184#insight-5","date_modified":"2026-10-23"}],"climate_tags":["water security","drought","water quality"],"geography_discussed":["City of Cape Town","South Africa"],"frame_perspective":[],"analysis_type":["hydrocensus","desktop study","stakeholder engagement","field monitoring"]}]}