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Research Article

Present Status and Future Improvements in Groundwater Use Near Streams in the Anseongcheon watershed, Korea

하천 인근 지하수 이용 현황 및 관리 개선방향에 관한 연구

Il-Moon Chung1
,
Sung Hun Hong2
,
Jeongwoo Lee1*
,
Min Gyu Kim1
정 일문1
,
홍 성훈2
,
이 정우1*
,
김 민규1
1Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology
2Han River Flood Control Office
1한국건설기술연구원 수자원·하천연구소
2국토교통부 한강홍수통제소 수자원정보센터
* 교신저자* Corresponding Author
December 2017. pp. 383-392
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Abstract

Excessive abstraction of groundwater near streams for agricultural, domestic, or industrial use can significantly reduce the streamflow. Therefore, proper management of water resources must involve careful monitoring of groundwater use near streams. This study investigates the current status of groundwater intake plans in the Anseongcheon watershed, Korea, in order to understand the portion of groundwater wells according to distance from the stream and the distribution of wells near the stream. Among all the wells in the watershed, 20.5% were permitted and 31.3% were declared within 300 m from the stream. In particular, among the wells located near streams, 11.4% were permitted and 88.6% were declared among the wells near streams. Therefore, the total amount of groundwater pumping rates from the declared wells is much higher than that from the permitted wells near the stream. Under current guidelines, investigations of the impact of groundwater use near a stream on streamflow depletion should only consider wells permitted by groundwater law. However, prudent management should also pay attention to declared wells, given theirlarge number.

Keywords
Groundwater near stream
permitted well
declared well
Anseongcheon watershed

하천 인근에서 농경지 경작 및 생공용수 등의 이용을 위한 과도한 지하수의 취수는 하천수량 감소의 주요 원인으로 인식되고 있다. 따라서 수자원 관리에 있어서 하천 인근 지하수 관리는 매우 중요하며, 이를 위해서는 하천 인근 지하수 정보 파악이 우선되어야 한다. 본 연구에서는 하천으로부터의 이격거리에 따른 지하수 관정의 비율과 하천 인근에 포함된 관정의 분포 특성을 파악하기 위해 안성천 유역을 대상으로 지하수 취수계획량 현황을 조사하였다. 안성천 수계 전체 관정 중 하천 인근에 포함된 허가관정의 취수계획량 비율은 20.6%, 하천 인근에 포함된 신고관정의 경우는 31.3%로 나타났다. 하지만 하천 인근 관정의 전체 취수계획량 중 허가관정은 11.4%, 신고관정은 88.6%에 해당하는 것으로 나타나 하천인근에서 신고관정의 취수비율이 월등히 높은 것으로 분석되었다. 현재까지는 지하수법에 의해 하천 인근 지하수 개발시 단지 허가관정에 대해서만 의무적으로 지하수영향조사서를 작성하도록 되어있으나 하천 인근의 이용관정 중 신고관정의 양이 훨씬 많은 것을 감안하면 신고관정에 대한 적극적이면서도 신중한 관리가 필요할 것으로 판단된다.

키워드
하천인근 지하수
허가관정
신고관정
안성천유역
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Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 27
  • No :4
  • Pages :383-392
  • Received Date : 2017-10-17
  • Revised Date : 2017-11-23
  • Accepted Date : 2017-11-28
  • DOI :https://doi.org/10.9720/kseg.2017.4.383
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