Gene Shinn (retired) Chris Reich; Don Hickey; Ann Tihansky 2005 spreadsheets http://sofia.usgs.gov/exchange/shinn/ The dataset contains the nutirent results from the collection of both ground and surface water samples at the Bayside Well Cluster study site. 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. 199602 199709 199806 199901 199912 200012 ground condition Complete None planned -80.469 -80.469 25.071 25.071 none chemistry hydrology nutrients sewage groundwater ISO 19115 Topic Category environment inlandWaters 007 012 Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, DC, National Institute of Standards and Technology United States US U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, DC, NIST Florida FL Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology Monroe County USGS Geographic Names Information System Florida Bay Key Largo none Florida Keys none none Chris Reich U.S. Geological Survey mailing and physical address

600 Fourth St. South

St. Petersburg FL 33701 USA 727 803-8747 ext 3032 727 803-2032 creich@usgs.gov http://sofia.usgs.gov/publications/posters/hydro_flkeys/clflasatx.jpg satellite image of southern Florida showing study site JPEG MS Excel Shinn, E. A. Reese, R. S.; Reich, C. D. 1994 report USGS Open-File Report 94-276 Florida U. S. Geological Survey http://sofia.usgs.gov/publications/ofr/94-276 Reich, C. D. 1996 report Journal of Sedimentary Rresearch v. 66 n. 5 Tulsa, OK S E P M Society for Sedimentary Research Journal of Sedimentary Research table of contents and abstracts are open access. Full text articles are available to non-member subscribers or pay-per-view at two websites accessed from the JSR website (http://www.sepm.org/jsr/jsr_home.html) Halley, R. B. Vacher, H. L.; Shinn, E. A. 1997 book chapter Developments in Sedimentology Geology and hydrogeology of carbonate islands Doorwerth, The Netherlands Elsevier Science B. V. This chapter was originally published in Geology and Hydrology of Carbonate Islands, Developments in Sedimentology 54, edited by H. L. Vacher and T. Quinn http://sofia.usgs.gov/publications/papers/keys_geohydro/ Paul, J. H. Rose, J. B.; Brown, J.; Shinn, E. A.; Miller, S.; Farrah, S. R. 1995 report Applied and Environmental Microbiology v. 61, n. 6 Washington, DC American Society for Microbiology The full article may be downloaded from the AEM website http://aem.asm.org/cgi/reprint/61/6/2230 Paul, J. H. Rose, J. B.; Jiang, S.; Kellogg, C.; Shinn, E. A. 1995 report Applied and Environmental Microbiology v. 61, n. 6 Washington, DC American Society for Microbiology The full article may be downloaded from the AEM website http://aem.asm.org/cgi/reprint/61/6/2235 The same tests were run on all samples of ground and surface waters 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. 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. Two sites were picked to conduct a dye-tracer groundwater flow experiment. One site is located on the Florida Bay side of Key Largo near the Westin Inn (old Sheraton) Resort and the other directly across the island of Key Largo on the Atlantic Ocean side near Rock Harbor. The site has a well cluster associated with it: one central site and 8 satellite sites located 30m from the center. Each well site, center and satellite, contained two wells. The deep well (A) was 40ft below the seafloor (fbsf) and the shallow well (B) was 20fbsf. Chemistry was conducted on water from the wells and surface at the bayside well cluster. 2000 Chris Reich U.S. Geological Survey mailing and physical address

600 Fourth St. South

St. Petersburg FL 33701 USA 727 803-8747 ext 3032 727 803-2032 creich@usgs.gov Bayside Well Cluster Point Point 1 0.001 0.001 Decimal degrees WGS84 WGS84 6378137 298.257223563 The Nutrient Results of Ground and Surface Water at the Bayside Well Cluster study site contains the nutrient results from the collection of both ground and surface water samples. Nutrient concentrations are available for both the deep well (40 ft) and the shallow well (20 ft) in milligrams per liter and micromolar. 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. USGS Heather S.Henkel U.S. Geological Survey mailing address

600 Fourth St. South

St. Petersburg FL 33701 USA 727 803-8747 ext 3028 727 803-2030 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 MS Excel unknown contains the nutrient results from the collection of both ground and surface water samples 0.022 http://sofia.usgs.gov/exchange/shinn/ Data may be downloaded from the SOFIA wesite none 20080111 Heather Henkel U.S. Geological Survey mailing and physical address

600 Fourth Street South

St. Petersburg FL 33701 USA 727 803-8747 ext 3028 727 803-2030 sofia-metadata@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998