| Abstract: | Test holes NC-6 and NC-11 were drilled in the municipalities of Hatillo and Isabela, respectively, as part of a study of the aquifers in the Northern Coastal Province of Puerto Rico. Test holes NC-6 and NC-11 were drilled to depths of 2,574 and 2,120 feet below land surface, respectively. Geologic and hydrologic data collected during drilling included continuous core, water-quality samples, water-level measurements, and estimates of aquifer yields from the water-bearing zones. Test hole NC-6 penetrated five formations ranging in age from late Oligocene to early Pliocene: the Lares Limestone, the Cibao Formation, the Los Puertos Formation, the Aymamon Limestone, and the Quebradillas Limestone. This test hole also penetrated a water-table aquifer and six artesian aquifer. Test hole NC-11 penetrated four formations ranging in age from late 01igocene to middle Miocene: the San Sebastian Formation, the Cibao Formation, the Los Puertos, and the Aymamon Limestone. A water-table aquifer and four artesian aquifers were penetrated by this well. |
| Genre: | USGS Numbered Series |
| ProdID: | 20682 |
| Citation Author: | Rodriguez-Martinez, Jesus; Hartley, John L. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 39 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey ;
USGS Earth Science Information Center, Open-File Reports Section [distributor], |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 93-465 |
| Citation Search Results Text: | Geologic and hydrologic data collected at test holes NC-6 and NC-11, Hatillo and Isabela, northwestern Puerto Rico; 1994; OFR; 93-465; Rodriguez-Martinez, Jesus; Hartley, John L. |
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| Citation Year: | 1994 |
| Type: | citation/reference |
| Text: | Geologic and hydrologic data collected at test holes NC-6 and NC-11, Hatillo and Isabela, northwestern Puerto Rico; 1994; OFR; 93-465; Rodriguez-Martinez, Jesus; Hartley, John L. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1993/0465/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1993/0465/report.pdf |
| Date Other: | Tue, 10 Jan 1995 00:00 -0600 |
| Publisher: | U.S. Geological Survey ;
USGS Earth Science Information Center, Open-File Reports Section [distributor], |
