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Influence of canal seepage on aquifer recharge near the New York Canal. Research report IWRRI-2002-09 Item Info
![The purpose of this study was to provide constraints on the interaction between surface water and ground water near the New York Canal (NYC). To accomplish this, spatial distributions of key hydrochemical parameters were analyzed with respect to aquifer stratigraphy. Occurrence of tritium (3H) in most of the ground water samples taken from the upper 200 to 300 feet of stratigraphic section near the NYC provides strong evidence of rapid recharge of Snake River Group aquifers. Ground water residence times range from several years in shallow, perched aquifers adjacent to the canal to approximately 100 years in deeper, confined, or semi-confined aquifers. Elevated concentrations of nitrate (NO3) and carbon dioxide (CO2) in aquifers underlying irrigated fields west of the canal demonstrate the effect of flood-irrigation on ground water recharge. Ground water in aquifers east of the canal do not underlie irrigated land and do not exhibit elevated concentrations of NO3 and CO2. A ground water divide directly beneath the canal appears to minimize mixing of these waters. Lack of 3H and NO3 and an abrupt decrease in conductivity (Cs) in ground water from wells that penetrate thick, blue clay layers at approximately 2,400 feet below mean sea level suggests that these aquifers do not receive substantial recharge from overlying ground water. Previous analysis of ground water ages suggest that these aquifers contain paleo-water and are part of a much larger, regional ground water system. [...]](https://objects.lib.uidaho.edu/iwdl/small/iwdl-200209_sm.jpg)
- Title:
- Influence of canal seepage on aquifer recharge near the New York Canal. Research report IWRRI-2002-09
- Authors:
- Hutchings, Jon; Petrich, Christian R.
- Date Created (ISO Standard):
- 2002-12
- Description:
- The purpose of this study was to provide constraints on the interaction between surface water and ground water near the New York Canal (NYC). To accomplish this, spatial distributions of key hydrochemical parameters were analyzed with respect to aquifer stratigraphy. Occurrence of tritium (3H) in most of the ground water samples taken from the upper 200 to 300 feet of stratigraphic section near the NYC provides strong evidence of rapid recharge of Snake River Group aquifers. Ground water residence times range from several years in shallow, perched aquifers adjacent to the canal to approximately 100 years in deeper, confined, or semi-confined aquifers. Elevated concentrations of nitrate (NO3) and carbon dioxide (CO2) in aquifers underlying irrigated fields west of the canal demonstrate the effect of flood-irrigation on ground water recharge. Ground water in aquifers east of the canal do not underlie irrigated land and do not exhibit elevated concentrations of NO3 and CO2. A ground water divide directly beneath the canal appears to minimize mixing of these waters. Lack of 3H and NO3 and an abrupt decrease in conductivity (Cs) in ground water from wells that penetrate thick, blue clay layers at approximately 2,400 feet below mean sea level suggests that these aquifers do not receive substantial recharge from overlying ground water. Previous analysis of ground water ages suggest that these aquifers contain paleo-water and are part of a much larger, regional ground water system. [...]
- Subjects:
- Groundwater Geology Hydrogeology Geohydrologic boundaries Surface-groundwater relations
- Location:
- Snake River Basin; Southern Idaho
- Latitude:
- 43.56
- Longitude:
- -116.17
- Collection:
- Boise Basin
- IWRRI number:
- 200209
- Rights:
- Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
- Publisher:
- Idaho Water Resources Research Institute; University of Idaho
- Contributing Institution:
- University of Idaho
- Type:
- Text
- Format:
- application/pdf
- Cataloger:
- KIT
- Date Digitized:
- 2017-09-29
Source
- Preferred Citation:
- "Influence of canal seepage on aquifer recharge near the New York Canal. Research report IWRRI-2002-09", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-200209.html
Rights
- Rights:
- Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/