Info
- Utilizzare la checkbox di selezione a fianco di ciascun documento per attivare le funzionalità di stampa, invio email, download nei formati disponibili del (i) record.
Concentrations of selected constituents in surface-water and streambed-sediment samples collected from streams in and near an area of oil and natural-gas development, south-central Texas, 2011-13 / / by Stephen P. Opsahl and Cassi L. Crow ; prepared in cooperation with the San Antonio River Authority and the Guadalupe-Blanco River Authority
| Concentrations of selected constituents in surface-water and streambed-sediment samples collected from streams in and near an area of oil and natural-gas development, south-central Texas, 2011-13 / / by Stephen P. Opsahl and Cassi L. Crow ; prepared in cooperation with the San Antonio River Authority and the Guadalupe-Blanco River Authority |
| Autore | Opsahl Stephen P. |
| Edizione | [Version 1.1, [revised] January 2015.] |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2015 |
| Descrizione fisica | 1 online resource (v, 25 pages) : color illustrations, color map |
| Collana | Data series |
| Soggetto topico |
Emerging contaminants in water - Texas - Guadalupe River Watershed
Emerging contaminants in water - Texas - San Antonio River Watershed Oil pollution of water - Texas - Guadalupe River Watershed Oil pollution of water - Texas - San Antonio River Watershed River sediments - Texas - Guadalupe River Watershed River sediments - Texas - San Antonio River Watershed |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910702775603321 |
Opsahl Stephen P.
|
||
| Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2015 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Detections, concentrations, and distributional patterns of compounds of emerging concern in the San Antonio River basin, Texas, 2011-2012 / / by Stephen P. Opsahl and Rebecca B. Lambert
| Detections, concentrations, and distributional patterns of compounds of emerging concern in the San Antonio River basin, Texas, 2011-2012 / / by Stephen P. Opsahl and Rebecca B. Lambert |
| Autore | Opsahl Stephen P. |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Geological Survey, , 2013 |
| Descrizione fisica | 1 online resource (v, 44 pages) : color illustrations, color maps |
| Disciplina | 19.42/4-4:2013-5200 |
| Collana | Scientific investigations report |
| Soggetto topico |
Emerging contaminants in water - Texas - San Antonio River Watershed
Endocrine disrupting chemicals in water - Texas - San Antonio River Watershed Water - Pollution - Texas - San Antonio River Watershed Emerging contaminants in water Endocrine disrupting chemicals in water Water - Pollution |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910705497603321 |
|
Opsahl Stephen P.
|
||
| Reston, Virginia : , : U.S. Geological Survey, , 2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Effects of urbanization on water quality in the Edwards Aquifer, San Antonio and Bexar County, Texas / / by Stephen P. Opsahl, MaryLynn Musgrove, and Keith E. Mecum
| Effects of urbanization on water quality in the Edwards Aquifer, San Antonio and Bexar County, Texas / / by Stephen P. Opsahl, MaryLynn Musgrove, and Keith E. Mecum |
| Autore | Opsahl Stephen P. |
| Pubbl/distr/stampa | [Reston, Virginia] : , : U.S. Department of the Interior, U.S. Geological Survey, , 2020 |
| Descrizione fisica | 1 online resource (4 unnumbered pages) : color illustrations, color map |
| Collana | Fact sheet |
| Soggetto topico |
Water quality - Measurement
Water quality - Texas - Edwards Aquifer Water quality - Texas - Bexar County Urbanization - Texas - Edwards Aquifer Urbanization - Texas - Bexar County |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910713864303321 |
|
Opsahl Stephen P.
|
||
| [Reston, Virginia] : , : U.S. Department of the Interior, U.S. Geological Survey, , 2020 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Quality of surface-water runoff in selected streams in the San Antonio segment of the Edwards aquifer recharge zone, Bexar County, Texas, 1997-2012 / / by Stephen P. Opsahl ; prepared in cooperation with the San Antonio Water System
| Quality of surface-water runoff in selected streams in the San Antonio segment of the Edwards aquifer recharge zone, Bexar County, Texas, 1997-2012 / / by Stephen P. Opsahl ; prepared in cooperation with the San Antonio Water System |
| Autore | Opsahl Stephen P. |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2012 |
| Descrizione fisica | 1 online resource (iv, 19 pages) : color illustrations |
| Collana | Data series |
| Soggetto topico | Water quality - Texas - Bexar County |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910704476403321 |
|
Opsahl Stephen P.
|
||
| Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2012 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Temporal and spatial variability of water quality in the San Antonio segment of the Edwards aquifer recharge zone, Texas, with an emphasis on periods of groundwater recharge, September 2017-July 2019 / / by Stephen P. Opsahl, MaryLynn Musgrove, and Keith E. Mecum
| Temporal and spatial variability of water quality in the San Antonio segment of the Edwards aquifer recharge zone, Texas, with an emphasis on periods of groundwater recharge, September 2017-July 2019 / / by Stephen P. Opsahl, MaryLynn Musgrove, and Keith E. Mecum |
| Autore | Opsahl Stephen P. |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2020 |
| Descrizione fisica | 1 online resource (x, 37 pages) : color illustrations, color map |
| Collana | Scientific investigations report |
| Soggetto topico |
Groundwater recharge - Texas - Edwards Aquifer
Subsurface drainage - Texas - Edwards Aquifer Water quality - Texas - Edwards Aquifer Water quality - Measurement |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910715371503321 |
|
Opsahl Stephen P.
|
||
| Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2020 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Water-quality observations of the San Antonio segment of the Edwards Aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010-16 / / by Stephen P. Opsahl [and three others] ; prepared in cooperation with the San Antonio Water System
| Water-quality observations of the San Antonio segment of the Edwards Aquifer, Texas, with an emphasis on processes influencing nutrient and pesticide geochemistry and factors affecting aquifer vulnerability, 2010-16 / / by Stephen P. Opsahl [and three others] ; prepared in cooperation with the San Antonio Water System |
| Autore | Opsahl Stephen P. |
| Pubbl/distr/stampa | Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2018 |
| Descrizione fisica | 1 online resource (viii, 67 pages) : color illustrations, color maps |
| Collana | Scientific investigations report |
| Soggetto topico |
Water-supply - Texas - San Antonio
Water quality - Texas - Edwards Aquifer - Measurement Water - Pollution - Texas - Edwards Aquifer - Measurement Nutrient pollution of water - Texas - Edwards Aquifer Water - Pesticide content - Texas - Edwards Aquifer |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910709869903321 |
|
Opsahl Stephen P.
|
||
| Reston, Virginia : , : U.S. Department of the Interior, U.S. Geological Survey, , 2018 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||