Land areas are divided into Area 1, 2, and 3 based on land use classification, each of which two distinct standards apply with regarding 21 soil pollutants: soil contamination concern standards and soil contamination measure standards.
Since contamination is likely to cause problems on human health and wealth as well as the growth of animals and plants, the polluted condition that requires such restrictive measures as land disuse and prohibiton of installation of facilities is set as soil of contamination measure requiring response, and the level of contamination which as 40% of the soil requiring measure should be kept from aggravating is determined as soil of concern(Table 4-1).

Soil Contamination Standard
Soil Contamination Standard

※ Reference
1. Area 1: land used for paddy fields, orchards, ranches, mineral bath resorts, and building lot (applicable only to the lots for residential purpose under (a), Paragraph 8, Article 5 of the Enforcement Decree of the Cadastral Act) school lots, drain, fish park, park, historical site, burial ground, in accordance with the land classification of the Cadastral Act , and children amusement facilities (applicable only to outdoor facilities) in accordance with Paragraph 2, Article 2 of the Safety Management Act on Children Amusement Facilities.
2. Area 2: land used for forest, salt farm, sites (all sites other than those of Area 1), warehouse sites, streams, water supply, sporting facility sites, amusement parks, religious activity zones, and multipurpose lots (applicable only to (1) or (3) of Paragraph 27, Article 5 of the Enforcement Decree of the Cadastral Act), in accordance with the land classification of the Cadastral Act.
3. Area 3: land used for factories, parking lots, gas stations, roads/railroads, embankments, and multipurpose lots (all multipurpose sites other than those described in Area 2) in accordance with the land classification of the Cadastral Act, and the land used for military and national defense purpose under (1) through (5) of Paragraph 1, Article 2 of the Act of National Defense and Military Installations Projects.
4. In case of returning the acquired land in accordance with Article 48 of the Act on the Acquisition of Land, etc. for Public Works and the Compensation Thereof, or removing soil pollutions, etc. in the returned/granted areas in accordance with Article 12 of the Special Act on Support for Areas Granted to the US Forces, the zone standard according to the usage after return of the applicable land shall be applied.
5. ’Benzo (a) pyrene’ item shall be applied only to the areas using the facilities manufacturing and storing toxic materials and the waste timber (ex: railroad lots, park, plant lots and streams, etc.)


The management of groundwater quality is carried out for two different water uses: drinking water and non-drinking water. Non-drinking water is further specifically divided into domestic water, farming and fishery water, and industrial water, and water quality management criteria and standards are prescribed in the Ministry of Environment Decree, "Rules on Groundwater Quality Conservation' (Table 4-2). For non-drinking water, 14 to 19 management criteria are specified to uses, which includes four general pollutants of hydrogen ion concentration, total coliform, nitrate nitrogen, and chloride ion and fifteen specific hazardous substances of cadmium, arsenic, cyan, mercury, organic phosphorus, phenol, lead, hexavalent chrome, trichloroethylene, 1,1,1-trichloroethane, benzene, toluene, ethylbenzene, and xylene.
Meanwhile, in case groundwater is used as drinking water, the 47 criteria as specified in Art. 5 of Management of Drinking Water Act are applied as water quality standards (Table 4-3).

Groundwater Quality Standards (Non-drinking)

Source : Rules on Groundwater Quality Conservation etc.
※ Reference
1. In case any of the following items should be applied, the criterion of chloride ion may not be applied
  A. Fishing water
  B. If chloride ion concentration is found harmless to human body, with regard to the intended use of groundwater
  C. In case chloride ion concentration temporarily increases with seawater intrusion
2. In case farming/fishery water and industrial water are also used as residential water, the quality
    standards for residential water are applied


Groundwater Quality Standard (Drinking)
Groundwater Quality Standard (Drinking)

Source : Drinking Water Management Act  

Last modified : 2013-10-29 19:59

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