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

Open APIs in the Public Data Portal's Environment & Weather › Water and Sewage, and Water Quality category. Detail categories: Sewage Treatment & Effluent Quality, Waterworks and Water Purification Plants, Water Quality Inspection & Measurement Network, Groundwater & Mineral Springs, Pollution Source Survey & Soil. 117 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.

Detail category

  1. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Water Quality DB

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2023-05-19
    1,350 requests

    (Collection method) This data is collected through the Water Environment Information System in accordance with the Water Environment Monitoring Network Operation Plan, Algae Warning Operation Manual, Article 22 of the Framework Act on Environmental Policy, Articles 9, 16, 22, and 23 of the Water Quality and Aquatic Ecosystem Conservation Act, Article 16-2 of the Act (Investigation on the inflow of radioactive substances, etc.), and Article 26-4 of the Enforcement Rule. (Data limitations)…

    RESTAuto-approvedNo restriction
  2. K-water – Real-time water information water quality (hourly) inquiry service (GW)

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    777 requests

    This data is public data provided by K-water, and is a service that supports querying water quality items among real-time water information in 1-hour units. Through this, water supply operating agencies and local government officials can comprehensively evaluate the safety and reliability of tap water, and recognize the possibility of water quality deterioration and abnormalities early to prepare prompt response measures…

    RESTAuto-approvedNo restriction
  3. Korea Water Resources Corporation – Real-time Water Supply Information Flow Rate (Hourly) Inquiry Service (GW)

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    496 requests

    This data provides real-time flow rate information for water purification plants and supply processes managed by K-water on an hourly basis. ㅁ Provided points: Intake plants, water purification plants, booster stations ㅁ Provided items: Flow rate by facility [㎥ or ㎥/h], management number, tag SN, tag description, data item classification (M, A, D, F) * Management number, tag SN, tag description: Measured…

    RESTAuto-approvedNo restriction
  4. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Bottled water water quality test result information

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-05-20
    389 requests

    Bottled water (mineral water) water quality test result information provides water quality tests conducted by collecting raw water, product water, and bottled water distributed in the market produced by bottled water manufacturers nationwide, along with results (compliant or non-compliant with water quality standards) and information such as collection agency, product name, collection date, test period, test date, and testing agency. Water quality test results are available across 17…

    RESTAuto-approvedNo restriction
  5. K-water – Real-time water supply information water level (hourly) inquiry service (GW)

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    340 requests

    The real-time water supply information water level (hourly) inquiry service provided by K-water is data that allows users to check hourly water level information collected from major water supply facilities nationwide. This data can be used as basic data for safety inspection of water supply facilities, improvement of water supply systems, and monitoring of abnormal situations. In addition, research institutions, local governments…

    RESTAuto-approvedNo restriction
  6. K-water – Waterworks Statutory Water Quality Information Inquiry Service

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-27
    263 requests

    본 데이터는 지방(지자체) 및 광역수도사업자가 생산, 관리하는 법정수질정보(월정수장)에 대한 수질 항목 정보를 조회할 수 있도록 지원합니다. 해당 자료는 먹는 물의 안전성을 보장하기 위해 법적으로 정해진 항목별 기준치와 관련 정보를 포함하며, 이용자는 각 수질 항목의 정의와 법정 기준을 확인할 수 있습니…

    RESTAuto-approvedNo restriction
  7. K-water – Real-Time Water Information Pressure (Time) Inquiry Service (GW)

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    223 requests

    As public data provided by K-water, this service supports querying the pressure item among real-time water information in 1-hour units. This data can be directly utilized in various practical fields such as diagnosing the possibility of leakage, detecting pipeline anomalies, establishing facility maintenance plans, and improving long-term operational efficiency. Through this…

    RESTAuto-approvedNo restriction
  8. 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
  9. 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
  10. National Institute of Environmental Research, Ministry of Environment – City, County, and District Statistical Service

    National Institute of Environmental Research, Ministry of Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    187 requests

    This data was finalized by the National Institute of Environmental Research through comparison and review with statistical data based on data submitted annually by nationwide regional local governments (17) and basic local governments (230). Survey items investigate 8 items: living sector, livestock sector, industrial sector, land sector (Ministry of Land data), aquaculture sector, landfill sector, environmental basic facilities, and other water pollution sources, and statistics by city, county, and district for each pollution source…

    RESTAuto-approvedNo restriction
  11. Korea Water Resources Corporation – Water supply facility information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-27
    187 requests

    This data supports querying the current basic operational status of water supply facilities (water intake facilities, water purification facilities, booster facilities) managed by local (local government)/regional water supply operators. Through this, the distribution and operational status of facilities can be identified and maintenance plans can be established. In addition, this data is used for facility capacity calculation and supply stability evaluation…

    RESTAuto-approvedNo restriction
  12. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Land-based Source Information Provision Service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    181 requests

    Pursuant 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 amount of water pollutant emissions in their jurisdictions every year, and investigate data on a total of 8 pollution sources, including living, livestock, industrial, aquaculture, land, landfill, environmental basic facilities, and other water pollution sources. Land-based sources are land for 28 land categories based on legal neighborhood dong-ri…

    RESTAuto-approvedNo restriction
  13. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Living population status information provision service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    175 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act, city/provincial governors investigate the types of pollution sources and the amount of water pollutants generated in their jurisdictions every year, and investigate data on a total of 8 pollution sources, including living, livestock, industrial, aquaculture, land, landfill, environmental basic facilities, and other water pollutants. Living population status includes the Ministry of the Interior and Safety domestic population and the legal…

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  14. Ministry of Environment, Climate and Energy National Institute of Environmental Research – Livestock Sector Information Provision Service

    Ministry of Environment, Climate and Energy National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    163 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act, the Mayor/Governor surveys pollution source types and water pollutant generation amounts in their jurisdiction every year, surveying data on a total of 8 pollution sources including living sector, livestock sector, industrial sector, aquaculture sector, land sector, landfill sector, environmental basic facilities, and other water pollutants. The livestock sector includes livestock manure discharge facility permission and report targets,…

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  15. Nakdonggang River Estuary Barrage Salinity 2

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

    This is an Open API service that provides information on salinity, water temperature, and electrical conductivity by water depth for observation points at the Nakdonggang River Estuary Barrage. O Provided items: Salinity, water temperature, and electrical conductivity information by water depth O Data format: JSON+XML O Points: Nakdonggang River Estuary Barrage, Estuary Barrage Pier 8, Estuary Barrage Pier 10, Upstream of Sluice Gate, Eulsukdo Bridge P3, Eulsukdo Bridge…

    RESTAuto-approvedNo restriction
  16. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Algae warning system inquiry service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2024-03-06
    143 requests

    Provides water quality and algae data for rivers and lakes targeted by the algae warning system. Water quality: Water temperature, pH, transparency, turbidity, harmful blue-green algae cell count, chlorophyll-a, dominant species

    RESTAuto-approvedAttribution required
  17. Ministry of Environment National Institute of Environmental Research – Basin-specific Statistics Service

    National Institute of Environmental Research, Ministry of Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    137 requests

    Based on data submitted annually by nationwide metropolitan local governments (17) and basic local governments (230) pursuant to Article 23 of the Water Environment Conservation Act and Article 32 of its Enforcement Decree, this data was confirmed by the National Institute of Environmental Research after comparison and review with statistical data. Survey items include living sector, livestock sector, industrial sector, land sector (Ministry of Land data), aquaculture sector, landfill sector, basic environmental facilities, and other water pollution sources…

    RESTAuto-approvedNo restriction
  18. Korea Water Resources Corporation – Paldang Intake Station Water Quality Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    137 requests

    Raw water quality information for K-water intake stations. - Items: Odor substances (Geosmin, 2-MIB), turbidity, pH, alkalinity, electrical conductivity, temperature, biological monitoring - Provided location: Paldang Intake Station Before change: Intake station water quality information (http://opendata.kwater.or.kr/openapi-data/service/pubd/wr…

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  19. National Institute of Environmental Research, Ministry of Climate, Environment and Energy – City/Province Statistics Service

    National Institute of Environmental Research, Ministry of Climate, Environment and Energy · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    136 requests

    Data confirmed by the National Institute of Environmental Research through comparison and review with statistical data based on data submitted annually by nationwide metropolitan local governments (17) and basic local governments (230). Survey items cover 8 categories: domestic, livestock, industrial, land (Ministry of Land data), aquaculture, landfill, basic environmental facilities, and other water pollution sources, provided as nationwide city/province statistical data…

    RESTAuto-approvedNo restriction
  20. Ministry of the Interior and Safety – Resource and Environment: Water Pollution Source Installation Facility (Other) Inquiry Service

    Ministry of the Interior and Safety · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2026-04-16
    131 requests

    The resource and environment water pollution source installation facility (other) data is managed as point pollution sources (discharge sources that discharge water pollutants to a certain point through conduits, waterways, etc. as wastewater discharge facilities, sewage generation facilities, livestock pens, etc.) and non-point pollution sources (cities, roads, agricultural land, mountainous areas, construction sites, etc. that discharge water pollutants from unspecified locations unspecifically) that are not managed as…

    RESTAuto-approvedNo restriction
  21. 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
  22. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Statistics Service by River

    National Institute of Environmental Research, Ministry of Climate, Energy and Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    129 requests

    Data confirmed by the National Institute of Environmental Research by comparing and reviewing statistical data based on data submitted by all metropolitan local governments (17) and basic local governments (230) annually pursuant to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act. Survey items include living sector, livestock sector, industrial sector, land sector (Ministry of Land data), aquaculture sector, landfill sector, environmental infrastructure, and other water pollution sources…

    RESTAuto-approvedNo restriction
  23. National Institute of Environmental Research under the Ministry of Climate, Energy and Environment – Industrial Sector Information Provision Service

    National Institute of Environmental Research under the Ministry of Climate, Energy and Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    126 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 amount of water pollutant generation in their jurisdictions every year, investigating data on a total of eight pollution sources, including living, livestock, industrial, aquaculture, land, landfill, environmental basic facilities, and other water pollution sources. The industrial sector includes licensed and reported Category 1 to 5 waste…

    RESTAuto-approvedNo restriction
  24. 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…

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  25. Busan Metropolitan City – Today's Water Quality Information Inquiry

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-28
    121 requests

    Opens tap water quality information and water quality statistics data for each water treatment plant in Busan. The opened data includes the status of domestic and industrial water production volume in Busan, today's water quality (industrial water), today's raw water quality, today's purified water quality, and today's detailed purified water information. Production volume provides Beomeosa, Deoksan, industrial, Myeongjang, Hwamyeong production volume and production volume total.…

    RESTAuto-approvedNo restriction
  26. Ministry of the Interior and Safety – Resources and Environment - Groundwater Impact Investigation Agency Inquiry Service

    Ministry of the Interior and Safety · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2026-04-16
    121 requests

    Resources and environment - Groundwater impact investigation agency data is professional company data configured to investigate the impact of groundwater development and use to be used on surrounding groundwater, etc., providing data such as permission date, business status, business name, location address, etc. - Based on public data provision standards, permission information of groundwater impact investigation agencies managed by local governments nationwide…

    RESTAuto-approvedNo restriction
  27. Ministry of the Interior and Safety – Resources and Environment - Groundwater Construction Company Inquiry Service

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

    Resources and environment - Groundwater construction company data is business information data that constructs facilities for groundwater development and use, providing data such as permission date, business status, business name, location address, etc. - Based on public data provision standards, permission information of groundwater construction companies managed by local governments nationwide is collectively collected and provided as nationwide data - Data has the same format and…

    RESTAuto-approvedNo restriction
  28. Ministry of the Interior and Safety – Resources and Environment - Groundwater Purification Company Inquiry Service

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

    Resources and environment - Groundwater purification company data provides data such as companies (places) that perform groundwater purification work to remove groundwater used for domestic, agricultural, and industrial purposes when it is contaminated due to reasons such as floods. - Based on public data provision standards, groundwater permission information managed by local governments nationwide is collectively collected and provided as nationwide data…

    RESTAuto-approvedNo restriction
  29. 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
  30. National Institute of Environmental Research under the Ministry of Climate, Energy and Environment – Regional Statistical Service

    National Institute of Environmental Research under the Ministry of Climate, Energy and Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2024-05-31
    119 requests

    Data confirmed after comparison and review with statistical data by the National Institute of Environmental Research based on data submitted annually by national metropolitan local governments (17) and basic local governments (230). Survey items include 8 items: living sector, livestock sector, industrial sector, land sector (Ministry of Land, Infrastructure and Transport data), aquaculture sector, landfill sector, basic environmental facilities, and other water pollution sources.

    RESTAuto-approvedNo restriction
  31. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Other water pollutant information provision service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    116 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of its Enforcement Rule, city/do governors investigate the types of pollutants and generation amounts of pollutants in their jurisdiction every year, investigating data on a total of 8 pollutant types including residential, livestock, industrial, aquaculture, land, landfill, basic environmental facilities, and other water pollutants. Other water pollutants are specified in Attached Table 1 of the Enforcement Rule of the Water Environment Conservation Act.…

    RESTAuto-approvedNo restriction
  32. K-water – Local water supply water quality information

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    116 requests

    ㅁ Provides local water supply water quality information (daily, weekly, monthly) by local government managed by K-water. ㅁ Provided items: Daily, weekly, monthly water quality data * Daily: 6 items (taste, odor, color, pH, turbidity, residual chlorine) * Weekly: 7 items (general bacteria, total coliforms, E. coli/fecal coliforms, ammonia nitrogen, nitrate nitrogen, potassium permanganate consumption…

    RESTAuto-approvedNo restriction
  33. Korea Environment Corporation – Non-point pollution reduction facility status

    Korea Environment Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality · Updated 2025-07-18
    114 requests

    Non-point pollution sources are emission sources that discharge water pollutants from unspecified locations such as cities, roads, farmland, mountainous areas, and construction sites, and non-point pollution reduction facilities are facilities that remove or reduce water pollutants discharged from non-point pollution sources. For development projects of a certain scale or larger and businesses with a high possibility of discharging non-point pollutants, the installation of non-point pollution sources is newly…

    RESTAuto-approvedAttribution required
  34. National Institute of Environmental Research, Ministry of Environment – Landfill source information provision service

    National Institute of Environmental Research, Ministry of Environment · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    113 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of its Enforcement Rule, mayors and provincial governors investigate the types of pollution sources and the generation amount of water pollutants in their jurisdictions every year, investigating data on a total of 8 pollution sources: living, livestock, industrial, aquaculture, land, landfill, basic environmental facilities, and other water pollutants. Landfill sources refer to landfill facilities where leachate from landfills is discharged (company…

    RESTAuto-approvedNo restriction
  35. Ministry of the Interior and Safety – Resource and Environment: Water supply construction agency inquiry service

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

    Resource and Environment - Water Supply Construction Agency data is data where a water supplier acts on behalf of the public for construction such as new construction, remodeling, repair, and demolition of water supply pipes branched from distribution pipes or other water supply pipes and other equipment necessary for water supply to supply raw water or purified water to general consumers, and includes licensing date, business status, business name, location address, number of employees,…

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  36. National Institute of Environmental Research – Aquaculture Sector Information Provision Service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    110 requests

    According to Article 23 of the Water Environment Conservation Act and Article 32 of the Enforcement Rule of the same Act, the Mayor/Do Governor investigates the types of pollution sources and water pollutant generation amounts in their jurisdiction every year, and investigates data on a total of 8 pollution sources, including living, livestock, industrial, aquaculture, land, landfill, basic environmental facilities, and other water pollutants. The aquaculture sector is Other Water Pollutants in Table 1 of the Enforcement Rule of the Water Environment Conservation Act…

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  37. Busan Metropolitan City – River Water Quality (Automatic Measurement Network) Information

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-07
    101 requests

    The automatic river water quality measurement network information operated by the Busan Metropolitan City Institute of Health and Environment measures real-time water quality for major rivers (13 locations across 8 rivers) within Busan jurisdiction and provides it to citizens in real time. Real-time water quality measurement items consist of a total of 7 items (water temperature, hydrogen ion concentration, dissolved oxygen, turbidity, electrical conductivity, salinity, total dissolved solids)…

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  38. K-water – Multi-Purpose Dam Water Quality Information

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-22
    100 requests

    ㅁ How to use: Search ""Multi-purpose dam water quality information"" in the search bar -> Select ""Sheet"" or ""API"" label menu -> Select ""Multi-purpose dam effluent water quality inquiry service (DATA inquiry)"" item from the service list ㅁ Provides water quality information items for multi-purpose dams managed by K-water ㅁ Provided items * Elevation depth, measurement time, measurement depth…

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  39. Busan Metropolitan City – Neighborhood Water Quality Information Inquiry

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-08-28
    93 requests

    Water quality refers to a comprehensive evaluation of the chemical, physical, and biological properties of water. Simply put, it is an indicator of how clean and safe the water is to use. Water quality grades are Class 1 for drinking water, Class 2 for domestic use, Class 3 for industrial use, Class 4 for heavily polluted water, and Class 5 for severely polluted water.…

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  40. Korea Water Resources Corporation – Industrial and Domestic Water Quality Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-22
    84 requests

    ㅁ Provides water quality information (daily, weekly, monthly) for tap water produced at K-water regional water purification plants - Before change: Regional water purification plant water quality (http://opendata.kwater.or.kr/openapi-data/service/pubd/waterways/wdr/dailwater/list) - After change: Industrial and domestic water quality…

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  41. Seoul Metropolitan Government – Drinking Water Joint Facility (Mineral Spring) Water Quality Test Results

    Seoul Metropolitan Government · Busan · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-07
    77 requests

    Pursuant to Article 4 (Water Quality Inspection) and Article 11 (Reporting of Inspection Results, etc.) of the [Guidelines for Management of Drinking Water Joint Facilities] [Enforced Sep 12, 2023] [Ministry of Environment Directive No. 1614, partially revised Sep 12, 2023], and [Table 1] "Drinking Water Quality Standards (Related to Article 2)" of the Rules on Drinking Water Quality Standards and Inspections, etc., the "Drinking water quality standards of drinking water joint facilities (mineral springs) by district and county in Busan Metropolitan City…

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  42. Busan Metropolitan Government – Waterworks - Water Supply Interruption Status

    부산광역시 · Busan · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-28
    65 requests

    부산광역시 상수도 단수현황 정보(단수개시일자, 단수종료일자, 단수사유 등)를 개방합니다단수란 계획적이거나 비계획적으로 수도물 공급이 일정시간 중단되는 상황을 의미합니다. 상수도 단수는 수도관 교체, 정수장 보수, 배수지 청소 등 정비, 공사목적의 계획단수와 상수도관 파손 노후관 누수, 지진, 홍수, 한파…

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  43. K-water – Groundwater Water Level Status

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-21
    65 requests

    K-water's groundwater water level status provides information on bedrock observation wells and alluvial observation wells by year. This data includes information such as year, observatory name, well classification, average water level, elevation, and depth. The groundwater information provided is used as reference material for comparing groundwater status between regions, understanding geological and environmental conditions, and groundwater development and use.…

    RESTAuto-approvedNo restriction
  44. Korea Water Resources Corporation – Water Purification Plant Water Quality Inspection Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-27
    64 requests

    This data is information on water quality inspections of purified water conducted at water purification plants managed by the Korea Water Resources Corporation. The target is tap water that has undergone water purification treatment, and results of regular inspections are provided so that the public can drink it with peace of mind. Through this, supply stability and hygiene status can be checked, and this data increases the transparency of water purification plant management and ensures safe water…

    RESTAuto-approvedNo restriction
  45. Korea Environment Corporation – Non-Point Pollution Reduction Facility Numerical Information

    Korea Environment Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality · Updated 2023-11-29
    63 requests

    Non-point pollution reduction facility numerical information service that provides expected treated suspended solids efficiency values, expected treated biochemical oxygen demand efficiency values, and scale/capacity values based on facility types through installation report reception numbers, water system numbers, business approval authorities, jurisdiction authorities, and reduction facility code information.

    RESTAuto-approvedNo restriction
  46. 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
  47. Korea Environment Corporation – Non-point Pollution Reduction Facility Verification Service

    Korea Environment Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality · Updated 2023-11-30
    60 requests

    Non-point pollution reduction facility verification service that queries information on non-point pollution reduction facility companies (business registration number, company name) based on the business registration number

    RESTAuto-approvedNo restriction
  48. Busan Metropolitan City – Water Supply Construction Status

    Busan Metropolitan City · Busan · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-28
    58 requests

    Opens construction status implemented by the Busan Metropolitan City Waterworks Headquarters. Water supply construction refers to construction to install, repair, and expand water supply facilities for clean and stable water supply. The opened data includes construction name, ordering department (waterworks headquarters, business office, etc.), commencement date, completion date, construction overview, progress rate, contract amount, construction company, and site representative,…

    RESTAuto-approvedNo restriction
  49. Chungcheongbuk-do – Regional River Location Information

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Rivers & Water Environment · Updated 2025-12-10
    57 requests

    An Open API that allows users to query river location information such as the name, administrative district, address, and GPS coordinates of regional rivers in Chungcheongbuk-do, enabling them to check the geographical location and administrative distribution of major rivers in the province through input parameters. This data is used in various administrative and environmental tasks such as river management, water system classification, river maintenance project review, and environmental impact assessment.…

    RESTReview requiredNo restriction
  50. 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
  51. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Environmental Impact Assessment Water Quality Information Service

    Ministry of Climate, Energy and Environment National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-07-22
    55 requests

    This service provides information on water quality survey overviews, surveys, and prediction attribute information of environmental impact assessment projects of the National Institute of Environmental Research of the Ministry of Environment, as well as spatial information (survey points). Survey attributes include survey round, survey point, address, coordinates, chlorophyll-a (㎎/ℓ), water temperature (°C), pH, dissolved oxygen (㎎/ℓ), suspended solids (㎎/ℓ), chemical…

    RESTAuto-approvedNo restriction
  52. 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
  53. Korea Coal Corporation – Water Quality Data Around Coal Mines

    Korea Coal Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2020-06-26
    52 requests

    Service to provide water pollution inquiries for a total of 6 locations around coal mines (Jangseong, Dogye, and Hwasun mines). Provided items: suspended solids coefficient (SS, mg/L) for each location.

    RESTReview requiredNo restriction
  54. North Chungcheong Province – Water Quality Measurement Network Operation Results

    North Chungcheong Province · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-10
    51 requests

    An Open API that allows querying operation results collected from river water quality measurement networks in North Chungcheong Province based on station name, water temperature, category, and measurement results. The water quality state actually measured at each survey station can be checked through input parameters. The provided data includes water temperature and measured values of specific water quality items to provide basic environmental characteristics of rivers.…

    RESTAuto-approvedNo restriction
  55. Chungcheongbuk-do – Water Quality Monitoring Network Operation Monthly Average Measurement Results

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

    An Open API that allows users to query average measurement values according to variables such as year, status, description, classification, and river based on the operation results of the Chungcheongbuk-do water quality monitoring network, systematically checking how water quality items in each water system changed on an annual basis. Average data not only reflects short-term fluctuations but also seasonal changes and specific period changes,…

    RESTAuto-approvedNo restriction
  56. 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
  57. Korea Water Resources Corporation – Nakdong River Estuary Barrage Rainfall

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

    Information on the current rainfall status of the Nakdong River estuary barrage by the Korea Water Resources Corporation. The current status of Nakdong River estuary barrage rainfall is an open API service provided by 10-minute, hourly, and daily intervals.O Provision items: Nakdong River estuary barrage rainfall (by 10 minutes, hourly, daily) O Data format: JSON+XML O Notes: Estuary barrage rainfall status is basin…

    RESTAuto-approvedNo restriction
  58. K-water – Groundwater Pollution Measurement Network Water Quality Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-21
    46 requests

    Groundwater pollution measurement network water quality information from K-water, providing water quality information items such as year, station name, round, classification, hydrogen ion concentration, chloride ion, PCE, TCE, diazinon, and toluene. This data is utilized in various fields such as research and policy establishment by various organizations, industrial development, and improvement of citizens' lives, enhancing user convenience and new industries.…

    RESTAuto-approvedNo restriction
  59. Chungcheongbuk-do – Environmental Field Information Water Environment River Water Quality Measurement Points

    North Chungcheong Province · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    45 requests

    An Open API that allows users to query river water quality measurement points operated to understand the water quality status of rivers within Chungcheongbuk-do based on city/county, river name, and sampling point. This data is utilized as core foundational material for water environment management, such as monitoring changes in river water quality, tracking pollution sources, and evaluating aquatic ecosystem health, and systematically provides regular water quality survey points.…

    RESTAuto-approvedNo restriction
  60. K-water – Tap water raw water (regional) water quality test information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-27
    44 requests

    This data is raw water (regional and local water supply) water quality test information collected from 160 municipal water supply facilities nationwide managed by K-water. Test items include test month, water supplier, water intake plant name, measurement point name, measurement point address, water sampling point classification, water purification plant name, water source, water sampling date, microorganisms, inorganic substances, organic substances, and disinfectants.…

    RESTAuto-approvedNo restriction
  61. National Institute of Environmental Research, Ministry of Climate, Energy and Environment – Environmental impact assessment repair and hydrological information

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Pollution Source Survey & Soil · Updated 2025-05-26
    44 requests

    Queries river project attributes (volume (m3), extension (km), area (km2), project location, total extension (km), project classification) based on the project area for repair and hydrology of environmental impact assessment projects, and area project attributes based on the project area (calculation frequency (years), flood runoff before development (m3/s), flood runoff during development (m3/s), flood runoff after development (m3/s),…

    RESTAuto-approvedNo restriction
  62. Chungcheongbuk-do – Water Quality Monitoring Network Operation Result Survey Point Status

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    43 requests

    An Open API that allows inquiring the status of survey points operated in the Chungcheongbuk-do water quality monitoring network based on water system, point name, point number, survey point, and classification criteria, allowing systematic confirmation of locations and point characteristics where water quality surveys are conducted through input parameters. This data is set for each water system such as rivers, lakes, and groundwater.…

    RESTAuto-approvedNo restriction
  63. Chungcheongbuk-do – Water Quality Monitoring Network Operation Result Survey Items

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-09
    43 requests

    An Open API that allows inquiring survey items of the water quality monitoring network operated by Chungcheongbuk-do based on classification, survey item name, and survey timing. This data clearly presents survey items for grasping the water quality status of various water systems such as rivers, lakes, and groundwater, thereby providing core information on the composition and operation method of the water pollution monitoring system.…

    RESTAuto-approvedNo restriction
  64. Daegu Public Facilities Management Corporation – Food Waste Status GW

    Daegu Public Facilities Management Corporation · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2026-07-27
    43 requests

    The Daegu Public Facilities Management Corporation manages the entire process of food waste from inflow to final treatment with precise data. It establishes a transparent administrative system by real-time weighing of inbound volumes and vehicle information of collection vehicles by district and county, through which seasonal occurrence trends are analyzed. In addition, it monitors process quantities at each treatment stage such as shredding and dehydration…

    RESTReview requiredNo restriction
  65. Korea Water Resources Corporation – Regional Water Purification Plant Sludge Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-21
    41 requests

    The regional water purification plant sludge information data provided by K-water is data organizing the generation status and treatment performance of sludge generated during the water purification process. Through this data, sludge treatment status can be inspected and referenced for policy establishment, and researchers can use it as data to analyze generation characteristics and treatment technology effects. The industry…

    RESTAuto-approvedNo restriction
  66. Korea Water Resources Corporation – Groundwater Management Measurement Network Water Quality Information

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-21
    41 requests

    Korea Water Resources Corporation's groundwater management measurement network water quality information provides water quality information items such as year, station name, round, classification, hydrogen ion concentration, chloride ion, PCE, TCE, diazinon, and toluene. This data is utilized in various fields such as research and policy establishment by various organizations, industrial development, and improvement of citizens' lives, thereby enhancing user convenience and new industries…

    RESTAuto-approvedNo restriction
  67. Korea Water Resources Corporation – Groundwater Utilization Status by Detailed Purpose

    Korea Water Resources Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-21
    40 requests

    Groundwater utilization status by detailed purpose from the Korea Water Resources Corporation, produced through the compilation of groundwater survey yearbook statistics. It provides data items such as si/do, si/gun/gu, classification, total, number of locations (locations), and usage amount (㎥/year). This data is utilized in various fields such as research and policy establishment by various organizations, industrial development, and improvement of citizens' lives,…

    RESTAuto-approvedNo restriction
  68. Chungcheongbuk-do – Local river statistical information

    Chungcheongbuk-do · Chungbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-12-10
    39 requests

    Chungcheongbuk-do local river statistical information is an Open API that provides regional names, water sampling point numbers, river names, and changes compared to the previous month. It is statistical usable data that can grasp the variability of river water quality indicators on a monthly basis. By providing increase and decrease amounts compared to the previous month, this data shows whether the water quality environment at a specific river point is improving or worsening.…

    RESTAuto-approvedNo restriction
  69. K-water – Water Supply Raw Water (Small-scale) Water Quality Inspection Information

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-27
    39 requests

    This data is water quality inspection information of raw water (village and dedicated water supply small-scale water supply facilities) collected from water supply facilities in 160 local governments nationwide. The targets are regional small-scale water intake sources, and the results of regular inspections conducted to secure drinking water safety are disclosed. This material is used to establish policies to supplement the vulnerabilities of small-scale facility management and secure safe drinking water…

    RESTAuto-approvedNo restriction
  70. Korea Environment Corporation – Non-point Pollution Source Measurement Station Information Inquiry Service

    Korea Environment Corporation · Nationwide · Environment & Weather › Water and Sewage, and Water Quality · Updated 2026-06-30
    39 requests

    Non-point pollution sources are emission sources that discharge water pollutants from unspecified locations such as cities, roads, farmland, mountain districts, and construction sites. Due to urbanization and changes in rainfall patterns caused by climate change, various pollutants flow into rivers, and the operation of non-point pollutant measurement networks was established due to the need to grasp accurate load and major pollution sources of non-point pollutants generated during rainfall…

    RESTReview requiredNo restriction
  71. 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
  72. Korea East-West Power – Thermal Discharge Status Information

    Korea East-West Power · Nationwide · Environment & Weather › Water and Sewage, and Water Quality · Updated 2025-06-24
    35 requests

    This is thermal discharge status data provided in an open API format by Korea East-West Power. This data systematically organizes thermal discharge amounts, intake water temperature, and outlet water temperature by institution and business office on an annual and monthly basis, and is designed to smoothly link with other systems through a standardized format and enable automated data utilization. This regu…

    RESTAuto-approvedNo restriction
  73. Gyeryong, Chungcheongnam-do – Tap Water Faucet and Priority Management Area (Bi-weekly 1st) Water Quality Test Results API

    Gyeryong City · Chungnam Gyeryong-si · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-11-24
    34 requests

    Provided as a public data service by Gyeryong City, Chungcheongnam-do, the 'Tap Water Faucet and Priority Management Area Water Quality Test Results API' provides real-time results of regularly conducted water quality tests to ensure the safety of tap water supplied to citizens. This API utilizes input parameters to query Gyeryong City's tap water data collected as of September 1, 2021,…

    RESTAuto-approvedNo restriction
  74. Seo-gu, Daegu – Air and Water Quality Environmental Pollution Emitting Business Status

    Seo-gu · Daegu Seo-gu · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-21
    34 requests

    Through input parameters, this provides business name, address, and industry item information on the status of air and water pollution emitting businesses in Seo-gu, Daegu. This data is status material including the names, addresses, and industries of businesses emitting air and water-related pollutants within Seo-gu, Daegu, encompassing hospitals, gas stations, car washes, textile processing, cutting…

    RESTAuto-approvedNo restriction
  75. 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
  76. Jeonbuk State – Monthly River Water Quality Measurement Status Inquiry Service

    Jeonbuk State · Jeonbuk · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-06-19
    33 requests

    The Jeonbuk State Monthly River Water Quality Measurement Status Inquiry Service provides monthly water quality data for major rivers within Jeonbuk State. This data is used as basic material for understanding the degree of river pollution and establishing policies for water quality conservation and management. This data includes year, month, city/province name, measurement station name, water depth, water temperature, hydrogen ion concentration,…

    RESTAuto-approvedNo restriction
  77. Gyeryong-si, Chungcheongnam-do – Village Water Supply and Small-scale Water Supply Facility (All Items) Water Quality Test Results API

    Gyeryong-si · Chungnam Gyeryong-si · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-11-24
    32 requests

    The 'Village Water Supply and Small-scale Water Supply Facility Water Quality Test Results API' data of Gyeryong-si, Chungcheongnam-do is a public data service that provides real-time water quality test results of village water supplies and small-scale water supply facilities that supply water to residents in areas where general water supply is not provided. This API utilizes input parameters to collect data as of September 1, 2021.…

    RESTAuto-approvedNo restriction
  78. Gyeryong-si, Chungcheongnam-do – Water Supply Pipe Priority Management Area (2nd Time per 2 Months) Water Quality Test Results API

    Gyeryong-si · Chungnam Gyeryong-si · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-11-24
    32 requests

    The 'Water Supply Pipe Priority Management Area Water Quality Test Results API' data of Gyeryong-si, Chungcheongnam-do is a public data service that provides real-time water quality test results conducted regularly (2nd time out of 2 times a month) to intensively secure the quality safety of tap water supplied through water supply pipes. This API utilizes input parameters to provide daily…

    RESTAuto-approvedNo restriction
  79. 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
  80. 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
  81. 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
  82. 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
  83. Jeju Special Self-Governing Province – Water Supply Remote Integrated Meter Reading Data

    Jeju Special Self-Governing Province · Jeju · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2025-08-08
    29 requests

    Provides water consumption data measured by remotely reading water meters installed at customer accounts in each administrative neighborhood under the jurisdiction of Jeju Special Self-Governing Province.

    RESTReview requiredNo restriction
  84. Daegu Metropolitan City – Water Quality Information Inquiry Service_GW

    Daegu Metropolitan City · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2026-05-13
    29 requests

    A service for inquiring water quality information (water quality statistics) of the Daegu Metropolitan City Waterworks Headquarters. The water quality information inquiry service API is a public data API provided by the Daegu Metropolitan City Waterworks Headquarters, allowing users to enter a year and query monthly water quality measurement information from January to December of that year. Provided…

    RESTAuto-approvedAttribution required
  85. Seo-gu, Daegu – Groundwater Facility Status

    Seo-gu, Daegu · Daegu Seo-gu · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-05-16
    28 requests

    A service that queries groundwater facility status data in Seo-gu, Daegu using input parameters. The data consists of usage, lot-number address, road name address, and data standard date. [Related Laws] Enforcement Decree of the Groundwater Act [Data Detailed Description] Usage: Classified into 3 categories: domestic/general, industrial, and agricultural. * Domestic water: Used for daily life such as household purposes…

    RESTAuto-approvedNo restriction
  86. Dong-gu, Daegu – Groundwater Water Quality Test Results

    Dong-gu, Daegu · Daegu Dong-gu · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-28
    28 requests

    The groundwater water quality test results inquiry service API systematically provides the water quality status of local groundwater. Based on usage and drinkability, this API allows users to query information such as address, usage, drinkability, test items, and test results, making it easy to check the safety and usability of groundwater. Through this,…

    RESTAuto-approvedNo restriction
  87. K-water – Groundwater Usage Status by Type

    K-water · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Groundwater & Mineral Springs · Updated 2025-08-21
    28 requests

    This information on groundwater usage status by type is produced through the compilation of groundwater survey statistical yearbooks by K-water. It provides data items such as city/province, classification, year, total, number of locations (sites), and usage volume (cubic meters/year). This data is utilized in various fields such as research by various institutions, policy establishment, industrial development, and improvement of citizens' lives.…

    RESTAuto-approvedNo restriction
  88. Ministry of Climate, Energy and Environment National Institute of Environmental Research – Environmental Impact Assessment Pesticide Post-Survey Information Service

    National Institute of Environmental Research · Nationwide · Environment & Weather › Water and Sewage, and Water Quality › Water Quality Inspection & Measurement Network · Updated 2025-05-26
    28 requests

    A function to query pesticide investigation information attributes (investigation point name, coordinates, address, survey start date, survey end date, survey information such as acephate, dicloflunid, etc.) investigated based on business codes and response types for environmental impact assessment projects by the National Institute of Environmental Research of the Ministry of Environment, as well as features of water quality pesticide survey points based on spatial coordinates (coordinate system, response format, and search range).…

    RESTAuto-approvedNo restriction
  89. 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
  90. 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
  91. 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
  92. 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
  93. 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
  94. 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
  95. 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
  96. 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
  97. 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
  98. 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
  99. 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
  100. 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
  101. 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
  102. 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
  103. 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
  104. 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
  105. 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
  106. 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
  107. 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
  108. 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
  109. 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
  110. 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
  111. 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
  112. Sejong Special Self-Governing City – Water Supply Infrastructure Status Inquiry Service

    Sejong Special Self-Governing City · Sejong · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2022-02-14
    24 requests

    Provides information on Sejong Special Self-Governing City water supply infrastructure names, locations, installation years, daily pressurization capacities, and facility operation reference information.

    RESTReview requiredNo restriction
  113. 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
  114. 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
  115. Daegu Metropolitan Government – Facility Information Inquiry Service

    Daegu Metropolitan Government · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2026-05-13
    19 requests

    A service to look up facility information (general construction) from the Daegu Metropolitan City Waterworks Headquarters. The facility information inquiry API is a public data API provided by the Daegu Metropolitan City Waterworks Headquarters. By entering the construction classification, responsible department code, start date, and completion date, you can view detailed information related to waterworks construction carried out during the corresponding period.…

    RESTAuto-approvedAttribution required
  116. Daegu Metropolitan City – Flow Rate Information Inquiry Service_GW

    Daegu Metropolitan City · Daegu · Environment & Weather › Water and Sewage, and Water Quality › Waterworks and Water Purification Plants · Updated 2026-05-13
    17 requests

    A service to query flow rate information (annual revenue water ratio performance information, water purification plant operation annual report information) of the Daegu Metropolitan City Waterworks Headquarters, allowing users to query flow rate information. Daegu Metropolitan City collects and discloses various flow rate information to systematically carry out waterworks operation and water resource management. This flow rate information is used for tap water…

    RESTAuto-approvedAttribution required
  117. 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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