Benjamin McPherson (retired) Ronald L. Miller (retired); Arturo Torres 2005 spreadsheet http://sofia.usgs.gov/exchange/mcpherson/loxdata.html The Loxahatchee National Wildlife Refuge (LOX) is a water-dominated ecosystem that is susceptible to water-quality impacts. A comprehensive analysis of historical water-quality and ancillary data is needed to direct the restoration of the Everglades and the adoption of water-quality standards in LOX because of its designation as Outstanding Florida Waters. Loxahatchee National Wildlife Refuge (LOX) maintains a separate networks of hydrologic monitoring stations (hydrostations) for measuring the stage and quality of surface water throughout the units. The data collected at these sites provides a historical baseline for assessing hydrologic conditions and making a wide range of management decisions (both internally and externally). Surface-water stage data is relatively straight-forward to analyze, both in real time and relative to historic conditions, and has typically been conducted by in-house hydrology staff at both units. Analysis of surface water-quality data is generally regarded as being more complex because of the subtleness of trends, absence of continuous data, and dependence on surface water depth and season. Collection and analysis of water-quality samples at LOX was done under cooperative agreements with the South Florida Water Management District (SFWMD). Under these agreements, the Park Service collects the samples in the field and the SFWMD provides sampling equipment and laboratory analyses. Water-quality data have been collected at 10 internal marsh sites in LOX by the U.S. Fish and Wildlife Service for over 10 years. These samples have been analyzed by SFWMD laboratory. In 2000, a study was begun by the U.S. Geological Survey to gather, edit, and interpret selected water-quality data from a variety of sources to improve the understanding of changes in water-quality in areas impacted by human activities or in more remote and relatively unimpacted areas of the Everglades and Big Cypress Swamp. The study area was extended into LOX in 2003. 19930921 20021106 ground condition Complete None planned -81.55 -80.125 26.75 25.11 none water quality water level hydrology nutrients major ion nitrogen phosphorus carbon pesticides chloride sulfate specific conductance statistical analysis chemistry 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 Palm Beach County USGS Geographic Names Information System Loxahatchee National Wildlife Refuge none Central Everglades WCA1 WCA2 Water Conservation Area 1 Water Conservation Area 2 None. This data is presented as a service to scientists, managers, educators, and the general public by the South Florida Information Access (SOFIA) Data Exchange site (http://sofia.usgs.gov). Please be advised that this data is presented to you exactly as it was provided to SOFIA by the Principal Investigator of the project generating the data. It is not intended to represent final and approved data. It may contain errors and may not yet be complete. The source for final and approved data will be the SOFIA Database. For any questions, please contact SOFIA Project Coordinator Heather Henkel at hhenkel@usgs.gov. Arturo Torres U. S. Geological Survey mailing and physical address

USGS Florida Integrated Science Center; FISC-Tampa 10500 University Center Drive, Suite 215

Tampa FL 33612 USA 813 975-8620 ext 128 office 813 215-4500 cell aetorres@usgs.gov The National Park Service collected the samples in the field and the SFWMD provided sampling equipment and laboratory analyses. Data are provided as Excel spreadsheets. McPherson, Benjamin F. Halley, Robert 1996 publication USGS Circular 1134 Reston, VA U.S. Geological Survey accessed as of 6/27/2011 Southern Florida NAWQA Program publication http://sofia.usgs.gov/publications/circular/1134/ McPherson, Benjamin F. Miller, Ronald L.; Haag, Kim H.; Bradner, Anne 2000 publication USGS Circular 1207 Reston, VA U.S. Geological Survey accessed as 6/27/2011 http://pubs.usgs.gov/circ/circ1207/ Miller, Ronald L. McPherson, Benjamin F. 2001 publication Florida Scientist v. 64, n. 1 Orlando, FL Florida Academy of Sciences accessed as of 6/27/2011 originally published in Florida Scientist, vol. 64, Winter, 2001, Number 1 http://sofia.usgs.gov/publications/papers/bottom_sed/index.html Miller, R. L. McPherson, B. F. 2008 publication USGS Scientific Investigations Report 2007-5277 Reston, VA U.S. Geological Survey accessed as of 6/27/2011 http://pubs.usgs.gov/sir/2007/5277/ All stations are surface water sites. Missing or unavailable data are indicated by -- Records for stations in Loxahatchee National Wildlife Refuge (LOX) vary for the data depending on what data were collected. Field Parameters and Nutrients are available for stations LOX3, LOX4, LOX5, LOX6, LOX7, LOX 8, LOX9, LOX10, LOX11, LOX12, LOX13, LOX14, LOX16, LOX16 from September 1993 to September 2002 and for stations S-10A, S-10C, S-10D, S-5A, and S6 from June, 1974 to November 2002. Major Ions and Trace Minerals are available for stations LOX3, LOX4, LOX5, LOX6, LOX7, LOX 8, LOX9, LOX10, LOX11, LOX12, LOX13, LOX14, LOX16, LOX16 from June 1994 to September 2002 and for stations S-10A, S-10C, S-10D, S-5A, and S6 from June 1974 to October 2002. Pesticides in Sediments are available only for stations LOX8, LOX10, S-5A and S6 from August 1984 to June 2001. Pesticides in Water are available only for stations S-5A and S6 from August 1984 to April 2002. Not all stations have data for each set of parameters from the same starting date to the same ending date . The objective of this project was to analyze, summarize, and report on water-quality data (field parameters and nutrients, major ions and trace metals, pesticides in sediment, and pesticides in water) collected in freshwaters in or near LOX over the period of record. The analysis included an evaluation of seasonal and long-term trends, spatial patterns, and possible effects of hydrologic, climatic, and human-induced perturbations. Specific objectives included: (1) determination of baseline water-quality conditions relative to the designations as Outstanding Florida Waters (OFW) and Outstanding National Resource Water (ONRW); (2) an analysis of water-quality conditions across the landscape, and at internal marsh sites relative to conditions in upstream canals; and (3) an analysis of long-term trends for selected parameters: chloride, sulfate, total phosphorus, total nitrogen, and specific conductance. Water-quality and ancillary data were collected from the files of the U.S. Geological Survey, South Florida Water Management District, Everglades National Park, Big Cypress National Preserve, the U.S. Fish and Wildlife Service, some southern Florida County agencies, State of Florida agencies, and other sources of long-term water-quality and ancillary data. Available data was collected in electronic files from the original source. The intention was not to collect every available piece of data, but to collect data with the potential to detect long-term trends or lack thereof in chemical concentrations. Focus was on chemicals of environmental importance. Station location and description, and period of record data are stored for each sampling location in the USGS NWIS database and in the South Florida Water Management District DBHYDRO database. Data were reformatted, if necessary, for storage in a database at the U.S. Geological Survey Subdistrict Office in Tampa, Florida. When feasible, data was screened using chemical logic checks developed by Ronald Miller of the USGS in St. Petersburg, Florida. Various graphs and statistical evaluations were used to detect correlations between variables and trends in concentration. Selected graphs and statistical results will be incorporated into a written report of the interpretations. 2005 Arturo Torres U. S. Geological Survey mailing and physical address

USGS Florida Integrated Science Center; FISC-Tampa 10500 University Center Drive, Suite 215

Tampa FL 33612 USA 813 975-8620 ext 128 office 813 215-4500 cell aetorres@usgs.gov Loxahatchee NWR Point Point 19 0.01 0.01 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 National Geodetic Vertical Datum of 1929 1.0 meters Implicit coordinate Data collected for each LOX site include: site (name), date and time collected, station ID, and record#+DB#. There are five spreadsheets for the data: Site and Parameter Information, Field Parameters and Nutrients, Major Ions and Trace Metals, Pesticides in Sediment, and Pesticides in Water. The Site and Parameter Information defines the parameters and lists the reporting units. The parameters for Field parameters and Nutrients include: Water temp Celsius; Fld spec cond, uS/cm; Diss oxygen, mg/L; Field pH; Turbidity, NTU; Color, Pt-Co units; NH4, mg/L; NO2, mg/L; Nitrogen Nitrate Dissolved (mg/L as N); NH4+orgN diss., mg/L; NH4+orgN total, mg/L; NO2+NO3,mg/L; total nitrogen, mg/L; Total phosphorus, mg/L; Diss. Phosphorus, mg/L; dissolved PO4, mg/L; Diss Org C, mg/L; and Suspended solids, mg/L. The parameters for Major Ions and Trace Metals include; Magnesium, mg/L; Sodium, mg/L; Potassium, mg/L; Chloride, mg/L; Sulfate, mg/L; Silica, mg/L as SiO2; Arsenic Total, ug/L as AS; Cadmium total, ug/L as CD, Copper total, ug/L as CU; Iron total, ug/L as FE; Lead total, ug/L as PB; Zinc total, ug/L as ZN; and Mercury, total recov., ug/L. The parameters for Pesticides in Sediment include: Metribuzin, sediment, bottom material, recoverable, ug/L; Metolachlor, sediment, bottom material, recoverable, ug/kg; Endosulfan Sulfate bottom material, ug/kg; Endosulfan Beta bottom material, ug/kg; Endosulfan Alpha bottom material, ug/kg; Endrin Aldehyde bottom material, ug/kg; Simazine in bottom material, ug/kg dry solids, P,P' DDD in bottom material, ug/kg dry solids; Aldrin in bottom material, ug/kg dry solids; Chlordane, technical, in bottom material, ug/kg dry solid; P,P'-DDE, sediment, bed material, dry weight, recoverable, ug/kg; P,P'-DDT, sediment, bed material, dry weight, recoverable, ug/kg; Dieldrin in bottom material, ug/kg dry solids; Endrin in bottom material, ug/kg dry solids; Ethion in bottom material, ug/kg dry solids; Toxaphene in bottom material, ug/kg dry solids; Heptachlor in bottom material, ug/kg dry solids; Heptachlor Epoxide in bottom material, ug/kg dry solids; Methoxychlor in bottom material, ug/kg dry solids; Diazinon in bottom material, ug/kg dry solids; Methyl Parathion in bottom material, ug/kg dry solids; Atrazine in bottom material, ug/kg dry solids; 2,4-D in bottom material, ug/kg dry solids; 2,4,5-T in bottom material, ug/kg dry solids; Chlorothalonil, sed, bmws,<2mmdw, rec, ug/kg; Ethoprop, bed material, rec, ug/kg; Disulfoton sulfone, bed material, rec, ug/kg; btm sed ametryn, ug/kg; Prometryn, sediment, bottom material, dry wht, recoverable, ug/kg; Phorate, bed material, rec, ug/kg; and Fonofos, bed material, rec, ug/kg. The parameters for Pesticides in Water include: Bromacil, water, whole, recoverable, ug/L; Butylate, water, whole, recoverable, ug/L; Methiocarb, water whole, ug/L; Propoxur, whole water, ug/L; Endosulfan Sulfate total, ug/L; Endrin Aldehyde total, ug/L; Linuron, water, whole, recoverable, ug/L; Naled, water, whole, total, ug/L; Oxamyl, water, whole, recoverable, ug/L; Fenamiphos, water, whole, recoverable, ug/L; chlorpyrifos, ug/L; Dimethoate, water, whole, total, ug/L; Trifluralin, total recoverable, ug/L; perthane, ug/L; Methomyl, total, ug/L; Simazine, total, ug/L; Prometryn, total, ug/L; aldrin, ug/L; Alpha BHC total, ug/L; chlordane, ug/L; Metolachlor, water, unfiltered, recoverable, ug/L; p,p'-DDE, ug/l; dieldrin, ug/L; endrin, ug/L; ethion, ug/L; toxaphene, ug/L; heptachlor, ug/L; methoxychlor, ug/L; malathion, ug/L; parathion, ug/L; Demetron, water, whole, recoverable, ug/L; methylparathion, ug/L; diazinon, ug/L; atrazine unfiltered, ug/L; Diuron, water, whole, recoverable, ug/L; 2,4-D, total, ug/L; 2.4.5-T total, ug/L; Carbaryl, unfiltered recoverable, ug/L; Silvex, total, ug/L; Dicofol, total, ug/L; trithion, ug/L; Glyphosate, water, unfiltered, recoverable, ug/L; Chlorothalonil, water, whole, recoverable, ug/L; Norflurazon, water, whole, recoverable, ug/L; Metribuzin, whole water, ug/L; Ethoprop, water, whole, recoverable, ug/L; Acephate, water, whole, recoverable, ug/L; 2,4-DP total, ug/L; Aldicard Sulfoxide, whole water, ug/L; Aldicarb Sulfone, whole water, ug/L; fonofos dyfonate, ug/L; Carbofuran, whole water, ug/L; Disulfoton, water, whole, total recoverable, ug/L; and Aldicarb , whole water, ug/L. ug/L = microgram per liter USGS and SFWMD personnel 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 Loxahatchee NWR data Not intended to represent final and approved data. It may contain errors and may not yet be complete. Excel 2.5 http://sofia.usgs.gov/exchange/mcpherson/loxdata.html Data may be downloaded from the SOFIA website none 20110627 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 none This metadata record may have been copied from the SOFIA website and may not be the most recent version. Please check http://sofia.usgs.gov/metadata to be sure you have the most recent version.