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Hydrogeological maps

Hydrogeological maps are composed of 5~7 thematic maps, such as a main hydrogeologic, depth to water,
lineament, quality and vulnerability

K-water published "A standard for basic groundwater surveys and hydrogeological maps" includes a guide for
groundwater investigation methods, standards for hydrogeological map drawing and digitalization(map size, symbol, aquifer calssification, etc) in 2015

The main hydrogeological map

The main hydrogeological map

  • Distinction of geological unit and geographical age
  • Groundwater level, Contour water level, groundwater flaw direction
  • Classification of aquifer and the amount of exploitable groundwater
Thermatic maps
  • Thermatic maps

    Groundwater Quality Map

  • Thermatic maps

    Hydrogeologic Map

  • Thermatic maps

    Lineament Map

  • Thermatic maps

    Groundwater Vulnerability Map

  • Thermatic maps

    Groundwater Flow Systems Map

  • Thermatic maps

    Depth To Groundwater Map

  • Current state chart of groundwater quality
  • Vulnerability chart of groundwater contamination
  • Distribution chart of linear structures
  • Distribution chart of groundwater depth and etc.

Providing all the result of research to the related agency and the public through the internet (http://www.gims.co.kr)

Hydrogeological maps View
Characteristics of groundwater in Korea
City Operator Period of business Area(㎢) View
Seoul Special City Seoul Special City 1995.05~1996.12 606
Busan Metropolitan City MOCT / K-Water 2002.01~2003.12 758 View
Daegu Metropolitan City MOCT / K-Water 2003.01~2004.12 886 View
Incheon Metropolitan City MOCT / K-Water 2004.01~2005.12 959 View
Gwangju Metropolitan City MOCT / K-Water 2004.01~2005.12 501 View
Daejeon Metropolitan City MOCT / K-Water 2003.01~2004.12 540 View
Ulsan Metropolitan City MOCT / K-Water 2003.01~2004.12 1,056 View
Sejong Special City MOCT / K-Water 2005.01 ~ 2006.12 361
  • Legal basis : Article 5 of the Groundwater Act
  • The period : ~ 2021
  • The conductor : MOLIT (an angency K-water)
  • Investigation Area Unit : It is based on the administrative district unit, and if necessary, the map and the watershed are considered simultaneously.
  • Investigation method :
    • Focus on field research
      • Including exploration, drilling, coaching
      • Conduct observation survey
      • Identify the details of each aquifer
    • Collecting and analyzing existing data
  • Survey period : 2 years by region
  • Survey performance : Area groundwater map (1/50,000)
  • Field of application :
    • Utilization of groundwater exploration and development by region
      • Proposed development, including possible points, the development available amount.
    • Provide basic data upon groundwater permit review
    • Applying to regional groundwater conservation management policies
      • conservation area management needs, including proposed
  • Survey Items

    Current status of basic groundwater survey

    • Geology / Topography with field survey and Lineament interpretation
    • Geophysical survey, Drilling and logging
    • Recharge calculations and water budget
    • Well inventory, Groundwater level and quality monitoring
    • Pumping test, Modelling, Aquifer interpretation
    • Contamination and quality interpretation
    • Groundwater management plan, etc
    Survey Items
    Division Sum Completed
    by 2016     		2017 2018 - 2021
    Si/Gun 167 119 17 31
    Area (km²) 99,516 70,471 4,956 24,089
    Map(Num) 147 107 7 33

Hydrogeological maps are composed of 5~7 thematic maps, such as a main hydrogeologic, depth to water,
lineament, quality and vulnerability

K-water published "A standard for basic groundwater surveys and hydrogeological maps" includes a guide for
groundwater investigation methods, standards for hydrogeological map drawing and digitalization(map size, symbol, aquifer calssification, etc) in 2003

The main hydrogeological map

The main hydrogeological map

  • Distinction of geological unit and geographical age
  • Groundwater level, Contour water level, groundwater flaw direction
  • Classification of aquifer and the amount of exploitable groundwater
Thermatic maps
  • Thermatic maps

    Groundwater Quality Map

  • Thermatic maps

    Hydrogeologic Map

  • Thermatic maps

    Lineament Map

  • Thermatic maps

    Groundwater Vulnerability Map

  • Thermatic maps

    Groundwater Flow Systems Map

  • Thermatic maps

    Depth To Groundwater Map

  • Current state chart of groundwater quality
  • Vulnerability chart of groundwater contamination
  • Distribution chart of linear structures
  • Distribution chart of groundwater depth and etc.

Providing all the result of research to the related agency and the public through the internet (http://www.gims.co.kr)

Hydrogeological maps View
Characteristics of groundwater in Korea
City Operator Period of business Area(㎢) View
Han River Basin K-Water 2004.06~2006.12 41,958 View
Nakdong River Basin K-Water 1999.01~2000.12 31,776 View
Keum River Basin K-Water 2001.04~2002.12 14,063 View
Youngsan River-Seomjin River Basin K-Water 1997.09~1998.12 17,081
  • Legal basis : Article 5 of the Groundwater Act
  • The conductor : MOLIT (an angency K-water)
  • Investigation Area Unit : Investigate nationwide which is divided into Geum River, Han River, Nakdong River and Seomjin-Youngsan River region.
  • Investigation method :
    • Focus on existing data collection and analysis
    • Field research
      • Observation Survey Period : 2 ~ 3 years for each region
  • Survey performance : basin groundwater map (1/250,000)
  • Field of application :
    • Use as basic data for correction in supplementing groundwater management basic plan
    • Selecting urgent areas for development use and conservation management, and presenting areas for groundwater survey by region