Gene Shinn (retired) Chris Reich; Don Hickey; Ann Tihansky, 2005, Nutrient Results of Ground and Surface Waters at the Bayside Well Cluster study site.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is WGS84.
The ellipsoid used is WGS84.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257223563.
Data available include: date, site name, longitude, latitude, DTBOS (m), Spec. Cond. (mS/cm), Temperature in degrees C, NH4, NH3, N+N, TN, PO4, SRP, TP, and TOC.
727 803-8747 ext 3032 (voice)
727 803-2032 (FAX)
creich@usgs.gov
Treated sewage is injected into the limestone under the Florida Keys via on-site disposal systems (OSDs). There are 25,000 septic tank systems, approximately 5,000 cesspools, and approximately 1000 class 5 injection wells. Depths of injection wells ranges from 10 to 30 meters. Excessive algal growth, coral diseases and both marine grass and sponge mortality is perceived by the local population, NOAA, and EPA to be caused by sewage nutrients leaking from groundwater on both sides of the Florida Keys. Determining the rate and direction of saline groundwater movement beneath the Key, and the Florida Bay was considered critical to understanding the fate and effects of subsurface waste water disposal n the Florida Keys.The objective of this research was to determine the rate, direction of flow, and contamination levels of saline groundwater in the Florida Keys and Florida Bay. Contamination studies are necessary to determine if nutrient and other contaminant levels are rising and to provide a baseline of data for future decision making.
Chemistry was conducted on water from the wells and surface at the bayside well cluster.
Person who carried out this activity:
727 803-8747 ext 3032 (voice)
727 803-2032 (FAX)
creich@usgs.gov
Shinn, E. A. Reese, R. S.; Reich, C. D., 1994, Fate and pathways of injection-well effluent in the Florida Keys: USGS Open-File Report 94-276, U. S. Geological Survey, Florida.Online Links:
Reich, C. D., 1996, Diver-operated manometer: a simple device for measuring hydraulic head in underwater wells: Journal of Sedimentary Rresearch v. 66 n. 5, S E P M Society for Sedimentary Research, Tulsa, OK.
Halley, R. B. Vacher, H. L.; Shinn, E. A., 1997, Geology and Hydrogeology of the Florida Keys: Developments in Sedimentology Geology and hydrogeology of carbonate islands, Elsevier Science B. V., Doorwerth, The Netherlands.Online Links:
Paul, J. H. Rose, J. B.; Brown, J.; Shi, 1995, Viral tracer studies indicate contamination of marine waters by sewage disposal practices in Key Largo, Florida: Applied and Environmental Microbiology v. 61, n. 6, American Society for Microbiology, Washington, DC.Online Links:
Paul, J. H. Rose, J. B.; Jiang, S.; Kel, 1995, Occurrence of fecal indicator bacteria in surface waters and the subsurface aquifer in Key Largo, Florida: Applied and Environmental Microbiology v. 61, n. 6, American Society for Microbiology, Washington, DC.Online Links:
Benchmarks were installed onshore on both sides of Key Largo and position and elevation determined using GPS_Military P-code enabled. Two wells at each cluster were later leveled in using the benchmarks as a reference point.
The central wells were not sampled due to the contained/retained high concentrations of dye. The deep wells were sampled in Feb. 1996, Sept. 1997, June 1998, Jan. 1999, Dec. 1999, and Dec. 2000. Surface water samples were collected at the deep wells starting in Sept. 1997.
The shallow wells were sampled in Sept. 1997, June 1998, Jan. 1999, and Dec. 2000. Surface water samples were collected only in Dec. 1999 and 2000.
The same tests were run on all samples of ground and surface waters
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
hhenkel@usgs.gov
Nutrient Results of Ground and Surface Waters at the Bayside Well Cluster study site
No warrantees are implied or explicit for the data
Data format: | contains the nutrient results from the collection of both ground and surface water samples in format MS Excel (version unknown) Size: 0.022 |
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Network links: |
<http://sofia.usgs.gov/exchange/shinn/> |
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
sofia-metadata@usgs.gov
U.S. Department of the Interior, U.S. Geological Survey
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