| Abstract: | Ground water in the Jaffna Peninsula of Sri Lanka, Ceylon, occurs within solution openings of the Jaffna Limestone of Miocene age. The freshwater forms a complex of lenses up to 25 meters thick overlying saline water derived from the sea. Salt-water intrusion and upconing of the salt water has occurred at several locations primarily along the coast. Recharge to the aquifer occurs during October-December. Discharge is primarily to wells and to springs along the north coast. Spring discharge is small compared to withdrawal from wells. Pumping from wells in an intensively studied 142-square-kilometer area of the Peninsula was 55.5 million cubic meters in 1976, whereas discharge to visible springs was an estimated 9.3 million cubic meters. Pumping during January-September removes water from storage causing heads to decline and the salt water-freshwater interface to rise. The storage is replenished as heads increase and the interface is depressed during the following October-December. Consequently, most of the recharge goes into storage rather than discharging to the sea. (Woodard-USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 10299 |
| Citation Author: | Meisler, Harold |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | vi, 47 leaves :map ;27 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 77-558 |
| Citation Search Results Text: | Summary of ground-water conditions in the Jaffna Peninsula, Republic of Sri Lanka, with a plan for investigating feasibility of ground-water development; 1977; OFR; 77-558; Meisler, Harold |
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| Citation Year: | 1977 |
| Type: | citation/reference |
| Text: | Summary of ground-water conditions in the Jaffna Peninsula, Republic of Sri Lanka, with a plan for investigating feasibility of ground-water development; 1977; OFR; 77-558; Meisler, Harold |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1977/0558/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1977/0558/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
