Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality — Public Data APIs

Open APIs related to Sewage Treatment & Effluent Quality, within Environment & Weather › Water and Sewage, and Water Quality on the Public Data Portal. 41 REST APIs, sorted by most requested. Click a name to go to its application page on the Public Data Portal. Search & filter on the main explorer.

  1. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Environmental Infrastructure Information Provision Service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-05-26
    212 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act, mayors and provincial governors investigate the types of pollution sources and the generation amount of water pollutants in their jurisdictions every year, and investigate data for a total of 8 pollution sources including living, livestock, industrial, aquaculture, land, landfill, environmental infrastructure, and other water pollutants. Environmental infrastructure includes public sewage treatment facilities, small-scale public sewage treatment…

    RESTAuto-approvedNo restriction
  2. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Domestic Water Usage Information Service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-05-26
    198 requests

    Pursuant to Article 23 of the Water Environment Conservation Act and Article 32 of its Enforcement Rule, the Mayor/Do Governor investigates the types of pollution sources and the volume of water pollutants generated in their jurisdiction every year. Data is investigated for a total of 8 pollution sources, including domestic, livestock, industrial, aquaculture, land, landfill, basic environmental facilities, and other water pollution sources. Domestic water usage is based on waterworks usage and sewage usage per customer.…

    RESTAuto-approvedNo restriction
  3. K-water – Daily Water Quality of Sewage Treatment Plants

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-08-21
    130 requests

    This is the daily water quality status of influent and effluent at sewage treatment plants commissioned and operated by K-water. Through this data, water quality management status of sewage treatment plants can be checked, and researchers and industry can use it to analyze water quality fluctuation characteristics and pollution reduction effects. In addition, this data is used for water quality improvement policy establishment, research analysis, and facility operation management…

    RESTAuto-approvedNo restriction
  4. Ministry of the Interior and Safety – Private Sewage Treatment Facility Management Business (Business Site) Inquiry Service

    Ministry of the Interior and Safety · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2026-04-16
    125 requests

    Private sewage treatment facility management business (business site) data is company data proxy-managing private sewage treatment facilities, providing data such as permit date, business status, business name, and location address.- Based on public data provision standards, it collectively collects private sewage treatment facility management business permit information managed by local governments nationwide and provides it as nationwide data - Data is…

    RESTAuto-approvedNo restriction
  5. Ministry of the Interior and Safety – Resources and Environment - Private Septic Tank and Sewage Treatment Facility Design and Construction Business Inquiry Service

    Ministry of the Interior and Safety · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2026-04-16
    120 requests

    Resources and environment - Private septic tank and sewage treatment facility design and construction business data is company data that designs and constructs private wastewater treatment facilities (sewage treatment facilities and private septic tanks), providing data such as permission date, business status, business name, location address, etc. - Based on public data provision standards, private septic tank and sewage treatment facility design and construction business permissions managed by local governments nationwide…

    RESTAuto-approvedNo restriction
  6. Seoul Metropolitan City – Sewage Treatment Facility Daily Water Quality Status Service

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-05-19
    62 requests

    Opens water quality status data discharged after treatment at sewage treatment facilities operated by Busan City. The opened data includes sewage treatment plant name, registration date, treatment date, BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), TN (Total Nitrogen), TP (Total Phosphorus), SS (Suspended Solids), and sewage treatment volume contained in the effluent. Suyoung…

    RESTAuto-approvedNo restriction
  7. Seoul Metropolitan Government – Monthly average water quality status service for sewage treatment facilities

    Busan Metropolitan Government · Busan · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-05-21
    55 requests

    Opens monthly average status data on discharged water quality for each of the 13 sewage treatment plants operated by the Busan Environmental Corporation. The opened data aggregates E. coli discharge/inflow, BOD discharge/inflow, COD discharge/inflow, SS discharge/inflow, T-N discharge/inflow, TOC discharge/inflow, T-P discharge/inflow, and ecological toxicity discharge/inflow figures by year and month. Suyeong…

    RESTAuto-approvedNo restriction
  8. Korea Water Resources Corporation – Sewage Treatment Plant Waste

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-08-21
    54 requests

    Sewage treatment plant waste data managed by the Korea Water Resources Corporation provides information on the generation status and treatment results of waste generated during the sewage treatment process. This data can be used to check treatment status and establish related policies, and researchers and industries can use it as data to analyze waste characteristics and treatment technology effectiveness. In addition, environmental conservation…

    RESTAuto-approvedNo restriction
  9. Chungcheongbuk-do – Regional river measurement information

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-12-10
    47 requests

    Chungcheongbuk-do regional river measurement information is an Open API providing spatial-based information to identify river measurement points such as number, city/county region, water sampling point number, river name, and latitude/longitude (GPS), allowing users to check water quality survey locations and administrative divisions by region through input parameters. This data is used for water environment surveys, water quality monitoring, water supply and sewerage…

    RESTAuto-approvedNo restriction
  10. Gyeryong-si, Chungcheongnam-do – Public Sewage Treatment Facility Effluent Water Quality Status API

    Gyeryong-si, Chungcheongnam-do · Chungnam Gyeryong-si · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-11-24
    35 requests

    The 'Public Sewage Treatment Facility Effluent Water Quality Status API' data of Gyeryong-si, Chungcheongnam-do is a public data service that provides real-time operation performance and water quality results of sewage treatment facilities operated by the city. This API utilizes input parameters to request effluent water quality status data of Gyeryong-si public sewage treatment facilities collected as of September 1, 2021…

    RESTAuto-approvedNo restriction
  11. Gimhae City Urban Development Corporation – Power consumption status by sewage treatment facility API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    33 requests

    A service that queries the power consumption status for each sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base year/month/date, base time, sewage treatment plant classification name, electric power, and voltage.

    RESTReview requiredNo restriction
  12. Yeongju-si, Gyeongsangbuk-do – Annual Sewage Sludge Generation and Treatment Volume

    Yeongju-si · Gyeongbuk Yeongju-si · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-07-14
    31 requests

    This API is a service that provides key environmental data such as the amount of sewage sludge generated annually and monthly in Yeongju-si, treatment volume, and dewatered cake volume (amount of solids obtained by dewatering sludge). This data is utilized in various activities such as raising citizens' environmental awareness and responding to corporate ESG (Environmental, Social, and Governance) in addition to policy establishment and research in the environmental field.…

    RESTAuto-approvedNo restriction
  13. Chungcheongnam-do Gyeryong-si – Public sewage treatment facility effluent water quality standard API

    Gyeryong City · Chungnam Gyeryong-si · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-11-24
    30 requests

    The 'Public Sewage Treatment Facility Effluent Water Quality Standard API' of Gyeryong-si, Chungcheongnam-do is a public data service providing real-time information on the water quality standards of water finally discharged into public waters from sewage treatment facilities operated by the city. Utilizing input parameters, this API provides the public sewage treatment facility effluent water quality standards of Gyeryong-si collected as of September 1, 2021…

    RESTAuto-approvedNo restriction
  14. Gimhae City Urban Development Corporation – Hourly TMS Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    29 requests

    A service that retrieves hourly TMS status for the Gimhae Urban Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, TOC, and pH.

    RESTReview requiredNo restriction
  15. Sejong – Water and Sewage Rates Inquiry Service

    Sejong Special Self-Governing City · Sejong · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2022-02-09
    29 requests

    Provides water and sewage rates per cubic meter, rate data provision date, water and sewage rates by business type, and standard usage information (cubic meters) in Sejong Special Self-Governing City.

    RESTReview requiredNo restriction
  16. Gimhae City Urban Development Corporation – Saengnim Sewage Treatment Facility Measurement Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    27 requests

    This is a service that inquires hourly measurement status for each Saengnim sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base year/month/day, base time, sewage treatment plant classification name, measurement classification name, and measurement value.

    RESTReview requiredNo restriction
  17. Gimhae City Urban Development Corporation – Monthly TMS Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    27 requests

    This is a service that inquires monthly TMS status for the Gimhae Urban Development Corporation, providing information such as base year/month, sewage treatment plant classification name, TOC, and pH.

    RESTReview requiredNo restriction
  18. Gimhae City Development Corporation – Operating Hours Status API by Daedong Sewage Treatment Facility

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    26 requests

    A service to query hourly operating hours status for each Daedong sewage treatment facility of the Gimhae City Development Corporation, providing information such as base date, base time, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  19. Korea Environment Corporation – Workplace Ecotoxicity Technical Support Measurement Synthetic Data Inquiry Service

    Korea Environment Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-12-12
    26 requests

    The ecotoxicity management system was introduced to overcome the limitations of water quality evaluation by existing individual substances. It is a system to comprehensively manage the water quality of industrial wastewater by measuring whether unknown toxic substances contained in effluent are toxic using living organisms. Ecotoxicity evaluates acute toxicity by introducing water fleas (Daphnia magna) into a sample.…

    RESTReview requiredNo restriction
  20. Daegu Public Facilities Management Corporation – Sewage Treatment Status GW

    Daegu Public Facilities Management Corporation · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2026-03-09
    26 requests

    Using the sewage treatment status inquiry service provided by the Daegu Public Facilities Management Corporation, operating data of various sewage treatment plants in the Daegu region can be checked in real time. This service transparently discloses core information such as sewage inflow volume, discharge volume, and water quality indicators to help citizens directly understand the efficient management status of public facilities. Ha…

    RESTAuto-approvedNo restriction
  21. Gimhae City Development Corporation – Sangdong Sewage Treatment Facility Operating Hours Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the hourly operating hours status for each Sangdong sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  22. Gimhae City Development Corporation – Jinnyeok Sewage Treatment Facility Measurement Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the hourly measurement status for each Jinnyeok sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, measurement classification name, and measurement value.

    RESTReview requiredNo restriction
  23. Gimhae City Development Corporation – Jinyeong Sewage Treatment Facility Operating Hours Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the hourly operating hours status for each Jinyeong sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  24. Gimhae City Development Corporation – Hanlim Sewage Treatment Facility Operating Hours Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the hourly operating hours status for each Hanlim sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  25. Gimhae City Development Corporation – Hanlim Sewage Treatment Facility Measurement Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the hourly measurement status for each Hanlim sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, standard time, sewage treatment plant classification name, measurement classification name, and measurement value.

    RESTReview requiredNo restriction
  26. Gimhae City Development Corporation – Monthly Operating Hours Status by Sewage Treatment Facility API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the monthly operating hours status for each sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year and month, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  27. Gimhae City Development Corporation – Monthly Measurement Status by Sewage Treatment Facility API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the monthly measurement status for each sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year and month, sewage treatment plant classification name, measurement classification name, and measurement value.

    RESTReview requiredNo restriction
  28. Gimhae City Development Corporation – Daily Operating Hours Status by Sewage Treatment Facility API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the daily operating hours status for each sewage treatment facility of the Gimhae City Development Corporation, providing information such as standard year, month, and day, sewage treatment plant classification name, and operating hours.

    RESTReview requiredNo restriction
  29. Gimhae City Development Corporation – Daily TMS Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    25 requests

    This is a service to query the daily TMS status for the Gimhae City Development Corporation, providing information such as standard year, month, and day, sewage treatment plant classification name, TOC, and pH.

    RESTReview requiredNo restriction
  30. Dong-gu, Daegu – Abandoned Groundwater Well Status

    Dong-gu, Daegu · Daegu Dong-gu · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-08-28
    25 requests

    The Abandoned Groundwater Well Status Inquiry Service API is a data service provided to safely manage discontinued groundwater wells and prevent environmental damage. This API allows you to check key information such as the address, drilling depth (meters), and restoration date of abandoned groundwater wells based on the restoration date. Through this, abandoned groundwater wells…

    RESTAuto-approvedNo restriction
  31. Gimhae City Urban Development Corporation – Sangdong Sewage Treatment Facility Measurement Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly measurement statuses for each Sangdong sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, measurement category name, and measurement value.

    RESTReview requiredNo restriction
  32. Gimhae City Urban Development Corporation – Saengnim Sewage Treatment Facility Operation Hour Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly operation hour statuses for each Saengnim sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, and operation hours.

    RESTReview requiredNo restriction
  33. Gimhae City Urban Development Corporation – Anha Sewage Treatment Facility Operation Hour Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly operation hour statuses for each Anha sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, and operation hours.

    RESTReview requiredNo restriction
  34. Gimhae City Urban Development Corporation – Anha Sewage Treatment Facility Measurement Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly measurement statuses for each Anha sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, measurement category name, and measurement value.

    RESTReview requiredNo restriction
  35. Gimhae City Urban Development Corporation – Jangyu Sewage Treatment Facility Measurement Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly measurement statuses for each Jangyu sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, measurement category name, and measurement value.

    RESTReview requiredNo restriction
  36. Gimhae City Urban Development Corporation – Jinrye Sewage Treatment Facility Operation Hour Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly operation hour statuses for each Jinrye sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, and operation hours.

    RESTReview requiredNo restriction
  37. Gimhae City Urban Development Corporation – Jinyeong Sewage Treatment Facility Measurement Status API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires hourly measurement statuses for each Jinyeong sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, base time, sewage treatment plant category name, measurement category name, and measurement value.

    RESTReview requiredNo restriction
  38. Gimhae City Urban Development Corporation – Daily Measurement Status by Sewage Treatment Facility API

    Gimhae City Urban Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    24 requests

    This is a service that inquires daily measurement statuses for each sewage treatment facility of the Gimhae Urban Development Corporation, providing information such as base date, sewage treatment plant category name, measurement category name, and measurement value.

    RESTReview requiredNo restriction
  39. Gimhae City Development Corporation – Daedong Sewage Treatment Facility Measurement Status API

    Gimhae City Development Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2021-12-23
    23 requests

    A service that queries the hourly measurement status for each Daedong sewage treatment facility of the Gimhae City Development Corporation, providing information such as the reference year, month, and day, reference time, sewage treatment plant classification name, measurement classification name, and measurement value.

    RESTReview requiredNo restriction
  40. Dong-gu, Daegu – Groundwater Completion Status

    Dong-gu, Daegu · Daegu Dong-gu · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2025-08-28
    23 requests

    The groundwater completion status inquiry service API is a data service that systematically provides completion information of groundwater wells in the region. This API allows users to query key information on groundwater wells such as address, drilling depth (meters), daily water intake (meters), and completion date based on the completion date. Through this, administrative agencies can manage and develop groundwater resources…

    RESTAuto-approvedNo restriction
  41. Korea Environmental Corporation – Water Quality TMS Attached Workplace Emission Information

    Korea Environmental Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Sewage Treatment & Effluent Quality · Updated 2026-09-12
    10 requests

    This API is an open API that provides daily measured values and emission information of water quality items (pH, TOC, SS, T-N, T-P) measured in real time at the discharge outlets of each workplace, targeting wastewater discharge facility workplaces registered in the Water Quality Telemetry Monitoring System (TMS) operated by the Water Quality Control Division under the Water Environment Management Department. This data is transmitted through the Water Quality Telemetry Monitoring System (TMS).…

    RESTReview requiredNo restriction
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