Metadata: Identification_Information: Citation: Citation_Information: Originator: Christopher G. Smith Publication_Date: 20250212 Title: Short-Lived Radium-Isotope (Radium-223 and -224) Specific Activity for Samples Collected Between November 2022 and March 2024 Along the West Florida Shelf (Indian Rocks Beach, Nature Coast, and Venice Headland) Geospatial_Data_Presentation_Form: tabular digital data Larger_Work_Citation: Citation_Information: Originator: Emma S. Chestang Originator: Alisha M. Ellis Originator: Christopher G. Smith Originator: Angela Knapp Originator: Joseph J. Tamborski Originator: Andrew Lindgren Publication_Date: 20250212 Title: Short-Lived Radium-Isotope (Radium-223 and -224) Specific Activity for Samples Collected Between November 2022 and March 2024 Along the West Florida Shelf (Indian Rocks Beach, Nature Coast, and Venice Headland) Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P1ZIOFSX Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.5066/P1ZIOFSX Description: Abstract: In 2021, a collaborative scientific investigation (National Science Foundation Grant Award OCE-2148989, Project 880516) was stated for the purpose of quantifying shelf inventories and boundary fluxes of dissolved organic nitrogen and dissolved iron to the West Florida Shelf (WFS) to assess their role in supporting the oligotrophic WFS ecosystem. To assess the spatial and temporal variability in submarine groundwater as a boundary source to the shelf, scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center designed a marine well network (three transects of wells across different coastal regions) and conducted five sampling events over a 16-month period. For each trip, samples were collected from shallow (< 10 meters [m] water depth), offshore groundwater wells and coincidental water column stations. Samples were collected from the different water types for the determination of naturally occurring, short-lived isotopes of radium (Ra): Ra-223 (half-life, t1/2 = 11.4 days) and Ra-224 (t1/2 = 3.63 days). Identifiers for the transects and subsequent samples are two to three letter acronyms based on coastal communities or geographic features: Nature Coast near Hudson (FL); Indian Rocks Beach near Indian Rocks Beach (FL), and Venice Headland near Venice (FL). Radium-223 and Radium-224 were absorbed onto manganese (di)oxide impregnated fibers (referred to as Mn-fibers from hereon) following exposure to seawater and the fiber was retained as the sample. The activities of Radium-223 and Radium-224 absorbed onto the Mn-fibers were measured on a set of Radium Delayed Coincidence Counters (RaDeCC) as outlined originally in Moore and Arnold (1996) and updated for procedural recommendations by Diego-Feliu and others (2020). Data included in this data release correspond to USGS Field Activity Number 2022-340-FA, with associated events spanning over one year (November 2022 to March 2024) and are distinguished by alternative FANs (altFANs) of 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, 24WFS01. Samples were acquired in November 2022, January-February 2023, May-June 2023, September 2023, December 2023, and February-March 2024, respectively. Purpose: This dataset, WFS_SW_GW_FieldRadium_Data.zip, contains processed radioisotope data obtained from Indian Rocks Beach, Hudson, and Venice (Florida, United States of America). Activities of Radium-223 and Radium-224 were measured in this study. These data were acquired to aid researchers understanding of submarine groundwater discharge within the West Florida Shelf. Supplemental_Information: All sampling activities correspond to the USGS Field Activity Number 2022-340-FA. Additional survey and data details are available from the USGS Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-340-FA. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20221114 Ending_Date: 20240308 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -83.00116 East_Bounding_Coordinate: -82.46020 North_Bounding_Coordinate: 28.39993 South_Bounding_Coordinate: 27.08939 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:1e76cc06-4e31-4ac7-815d-6731d3e96abd Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: location Theme_Keyword: environment Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: tracer study Theme_Keyword: hydrology Theme_Keyword: geochemistry Theme_Keyword: salinity Theme_Keyword: water temperature Theme_Keyword: water sampling Theme_Keyword: radium Theme_Keyword: ocean characteristics Theme_Keyword: ocean processes Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: ocean Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: SPCMSC Theme_Keyword: submarine groundwater discharge Theme_Keyword: Radium-223 Theme_Keyword: Radium-224 Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: State of Florida Place: Place_Keyword_Thesaurus: None Place_Keyword: West Florida Shelf Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: November 2022 Temporal_Keyword: January 2023 Temporal_Keyword: February 2023 Temporal_Keyword: May 2023 Temporal_Keyword: June 2023 Temporal_Keyword: September 2023 Temporal_Keyword: December 2023 Temporal_Keyword: February 2024 Temporal_Keyword: March 2024 Access_Constraints: None Use_Constraints: The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Address: Address_Type: Mailing Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Data_Set_Credit: Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. These data are not legal documents and are not to be used as such. Acknowledgement of the National Science Foundation (National Science Foundation Grant Award OCE-2148989, Project 880516) and USGS Coastal Marine Hazards and Resources Program (CMHRP) for funding and resources that enabled samples to be collected and analyzed. Native_Data_Set_Environment: Environment as of Metadata Creation: Microsoft Windows 11 Enterprise Version 23H2; Microsoft Excel Version 2402; RaDeCC Version 2.6.005. Cross_Reference: Citation_Information: Originator: Moore, W.S. Publication_Date: 20080416 Title: Fifteen Years Experience in Measuring 224Ra and 223Ra by Delayed-Coincidence Counting Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 109, Issues 3-4 Online_Linkage: https://doi.org/10.1016/j.marchem.2007.06.015 Cross_Reference: Citation_Information: Originator: Sun, Y., and Torgersen, T. Publication_Date: 19981007 Title: The Effects of Water Content and Mn-Fiber Surface Conditions on 224Ra Measurement by 220Rn Emanation Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 62, Issues 3-4 Online_Linkage: https://doi.org/10.1016/S0304-4203(98)00019-X Cross_Reference: Citation_Information: Originator: McCurdy, D.E., Garbarino, J.R., and Mullin, A.H. Publication_Date: 2008 Title: Interpreting and Reporting Radiological Water-Quality Data Series_Information: Series_Name: U.S. Geological Survey Techniques and Methods Issue_Identification: 5-B6 Other_Citation_Details: Book 5, Laboratory Analysis Section B, Methods of the National Water Quality Laboratory Chapter 6 Online_Linkage: https://doi.org/10.3133/tm5B6 Cross_Reference: Citation_Information: Originator: ASTM International Publication_Date: 20170712 Title: ASTM D8027-17 Standard Practice for Concentration of Select Radionuclides Using MnO2 for Measurement Purposes Series_Information: Series_Name: ASTM International Issue_Identification: Volume 11.02, Version D8027-17 Online_Linkage: https://doi.org/10.1520/D8027-17 Cross_Reference: Citation_Information: Originator: Moore, W. S., and Arnold, R. Publication_Date: 19960115 Title: Measurement of 223Ra and 224Ra in Coastal Waters Using a Delayed Coincidence Counter Series_Information: Series_Name: Journal of Geophysical Research: Oceans Issue_Identification: Volume 101, Issue C1 Online_Linkage: https://doi.org/10.1029/95JC03139 Cross_Reference: Citation_Information: Originator: Moore, W.S. and Reid, D.F. Publication_Date: 19731220 Title: Extraction of Radium from Natural Waters Using Manganese-Impregnated Acrylic Fibers Series_Information: Series_Name: Journal of Geophysical Research Issue_Identification: Volume 78, Issue 36 Online_Linkage: https://doi.org/10.1029/JC078i036p08880 Cross_Reference: Citation_Information: Originator: Giffin, C., Kaufman, A., and Broecker, W. Publication_Date: 19630315 Title: Delayed Coincidence Counter for the Assay of Actinon and Thoron. Series_Information: Series_Name: Journal of Geophysical Research Issue_Identification: Volume 68, Issue 6 Online_Linkage: https://doi.org/10.1029/JZ068i006p01749 Cross_Reference: Citation_Information: Originator: Scholten, J.C., Pham, M.K., Blinova, O., Charette, M.A., Dulaiova, H., and Eriksson, M. Publication_Date: 20100820 Title: Preparation of Mn-fiber Standards for the Efficiency Calibration of the Delayed Coincidence Counting System (RaDeCC) Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 121, Issues 1-4 Online_Linkage: https://doi.org/10.1016/j.marchem.2010.04.009 Cross_Reference: Citation_Information: Originator: Scientific Computer Instruments Publication_Date: 2016 Title: RaDeCC Software (v 2.6) Online_Linkage: https://www.radecc.com/ Cross_Reference: Citation_Information: Originator: Diego-Feliu, M., Rodellas, V., Alorda-Kleinglass, A., Tamborski, J., van Beek, P., Heins, L., Bruach, J.M., Arnold, R., and Garcia-Orellana, J. Publication_Date: 20200327 Title: Guidelines and Limits for the Quantification of Ra Isotopes and Related Radionuclides With the Radium Delayed Coincidence Counter (RaDeCC) Series_Information: Series_Name: Journal of Geophysical Research: Oceans Issue_Identification: Volume 125, Issue 4 Online_Linkage: https://doi.org/10.1029/2019JC015544 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Samples were collected from transects offshore of Indian Rocks Beach, Hudson, and Venice (Florida) and spatial position was determined using a vessel mounted global positioning system (GPS) using the World Geodetic System of 1984 (WGS84) geographic datum. Points were recorded up to five decimal places of a degree in the field. Field based water parameters were measured using a YSI ProDSS multiparameter water quality meter (Xylem, Inc.) set up with a flow-through cell onboard the research vessel for all sampling activities. Salinity, dissolved oxygen, pH, and oxidation-reduction potential were calibrated for the ProDSS before each trip. The YSI was calibrated before each measurement with pH 7 buffer solution, 50 millisiemens per centimeter (mS/cm) conductivity solution, and Zobell solution to ensure accuracy. Field-based water parameters were recorded to the resolution displayed by the ProDSS handheld unit (usually three to four decimal places). A known volume of groundwater or water column water was collected from each well/station using a diaphragm pump. Water column samples for 22WFS05 and 23WFS01 were collected and extracted using a flow through cell system in the field; surface samples for the remainder of the sampling events were collected in one or more, field rinsed 20-liter (L) cube containers and extracted after returning to shore. All groundwater samples were collected in field rinsed, 2-L high density polyethylene bottles and extracted back onshore. Onshore extraction of radium was performed using gravity-fed flow through cell filled with manganese fiber. Volumes were recorded to approximately 10% of the total measured volume. Efficiencies of RaDeCC systems are determined approximately every two months using an in-house set of fiber filters prepared with 19.9 disintegrations per minute (dpm) of Actinium-227 and 13.0 dpm of Thorium-232 standard solutions. A weighted-three point moving average and relative standard error are used for the efficiency reported to the thousandths place of each isotope for determination of the sample activity. These data were reviewed in accordance with USGS quality management system requirements. Logical_Consistency_Report: This data release contains processed data files that provide the specific activities of radioisotopes Radium-223 and Radium-224 from Indian Rocks Beach, Hudson, and Venice (Florida) offshore of Florida's west coast. Samples were collected during USGS FAN 2022-340-FA (altFANs 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01). Completeness_Report: These are complete, processed data for all Radium-223 and Radium-224 measurements collected during USGS Field Activity Numbers (FAN) 2022-340-FA (altFANs 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01). Indian Rocks Beach, Hudson, and Venice (Florida) were sampled during all sampling activities. Throughout all field activities, samples containing radioisotopes of Radium-223 and Radium-224 were collected from wells, the coastal water column (except for 23WFS04) and select offshore sites (23WFS02). All laboratory analytical data sets (the measured radium-223 and radium-224 activities) for all measurements collected have been reviewed in accordance with USGS quality management system requirements. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Coordinates were read directly off a Garmin GPS plotter and recorded by hand in a field notebook. Information was digitized, reviewed, and subject to error associated with the plotter, which is ± 15 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Sampling depth is based on total water depth at each site and includes 0.5 m below the surface of the ocean and 0.5 m above the sea floor. Vertical accuracy is thus assessed to be approximately ± 0.5 m. Vertical accuracy of the wells was measured relative to the seafloor, with an uncertainty of approximately ± 0.1 m. Lineage: Process_Step: Process_Description: Six separate sampling activities in November 2022, January-February 2023, May-June 2023, September 2023, December 2023, and February-March 2024 from USGS FAN 2022-340-FA (altFANs 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01) were made at Indian Rocks Beach, Hudson, and Venice (Florida). Throughout all field activities, samples from water column (surface water, bottom water) and groundwater wells were collected for the determination of radioisotopes of Radium-223 and Radium-224. Surface water is operationally defined as the upper one meter of the water column and bottom water is operationally defined as one to two meters above the seafloor. Process_Date: 20240308 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Position: Research Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Process_Step: Process_Description: SPCMSC researchers extracted radium isotopes from the water column samples using a known volume of water (Moore and Reid, 1973). When a large volume of water is exposed to Mn-fibers at flow rates less than two liters per minute (L/min), naturally occurring radium isotopes are quantitatively adsorbed onto the high surface area of hydrated manganese-oxides bound to the fibers producing a representative sample of the radium in surficial seawater (Moore and Reid, 1973; Moore and Arnold, 1996; ASTM International, 2017). Direct sampling involves the Mn-fiber encountering a known volume of collected water. During all sampling activities samples were collected using a direct method with a quantitative volume of water passed across the fiber. For groundwater sampling, 2 L of water was gravity-fed across 20 grams (g) Mn-fiber housed in a flow-through column. For 22WFS05 and 23WFS01 only, water column samples were collected and extracted using a flow through cell system in the field; surface samples for the remainder of the sampling activities were collected in one or more, field rinsed 20-L cube containers and extracted by gravity after returning to shore. Volumes were recorded to the nearest 0.1 L for groundwater samples and 1 L for water column samples; uncertainties were 0.1-0.2 L and 1-2 L, respectively. The date and time of collection and extraction were recorded for each sample. Process_Date: 20240308 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Position: Research Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Process_Step: Process_Description: Mn-fibers were analyzed for Radium-223 and Radium-224 using the Radium Delayed Coincidence Counter (RaDeCC) and methods described in Moore and Arnold (1996). The RaDeCC's ability to measure Radium-223 and Radium-224 isotopes relies on the short-lived radon daughters, Radon-219 and Radon-220, respectively. Mn-fibers were connected to the RaDeCC in a sample cartridge which was contained within a closed helium-circulated loop. Helium gas strips the short-lived Radon daughters from the fiber and is used as a carrier gas to transport these particles to a Zinc-Sulfide coated alpha scintillation vessel or cell (Ralph and Arnold, 1996). Flow of helium was regulated to allow Radon-219 (half-life of 3.96 seconds) and Radon-220 (half-life of 55.6 seconds) to undergo alpha decay into Polonium-215 and Polonium-216 within the cell. The base of the scintillation cell was coupled to a photomultiplier tube, pre-amplifier, and a high voltage supply sensitive enough to detect photons generated from the interaction of the alpha particles from polonium decay and the scintillator. These analog events and their timing are passed through a delay coincidence circuit that has been tuned to differentiate the mean statistical occurrence (time) of each polonium isotope. The analog counts for each polonium isotope passing for through the circuit is converted to a digital signal that is then passed to RaDeCC Software (Scientific Computer Instruments, 2016) computer program via a universal serial bus (USB). Process_Date: 20240308 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Position: Research Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Process_Step: Process_Description: Prior to the analysis of Radium-223 and Radium-224, each system's background radiation level was measured by circulating ambient air through the system. Mn-fiber samples were rinsed with radium-free, Milli-Q© deionized water to remove sea salts and the fibers masses were adjusted to roughly 50-100% total moisture content to ensure maximum emanation of radon from the Mn-fibers (Sun and Torgersen, 1998). The weight was recorded, and fibers were gently pulled apart to increase surface area and placed into sample cartridges. The cartridges were snapped into holders and the top flow tubing attached to the cartridge. Ultra-High Purity Helium ('helium' hence forth) was introduced to the system at the lower port of the column purging the system until all ambient air had been displaced (purged) as indicated by a stable flow rate of approximately 0.4 L per minute. Helium is superior to ambient air as a carrier gas in the counting chamber because more alpha particles from radon decay can reach the walls of the chamber and interact with the zinc-sulfide, thus dramatically increasing the systems efficiency (Moore, 2008). Once the system is saturated with helium and a stable flow rate reached, the helium hose was removed and quickly replaced with the system return flow hose to create a closed-loop system with the sample and the instrument. The pump was turned on and the analysis was started on the RaDeCC Software (Scientific Computer Instruments, 2016). The radium-radon-polonium isotopes within the closed system were allowed to reach secular equilibrium, which provided radon and polonium progeny half-lives takes 5 minutes. After this period, the RaDeCC Software (Scientific Computer Instruments, 2016) test was reset and left to count until Radium-220 counts reached a minimum of 300 counts or until the test reached 240 minutes, which ever came first (Diego-Feliu and others, 2020). Process_Date: 20240308 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Position: Research Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Process_Step: Process_Description: Raw Radium-223 and Radium-224 data were exported off the RaDeCC software (Scientific Computer Instruments, 2016) into a text file and included: background count rates, count time, Radon-219 and Radon-220 count rates, Radon-219 and Radon-220 total counts, and combined total counts. Determination of Radium-223 and Radium-224 via the delayed coincidence counter follows the procedure from Diego-Feliu and others (2020) and previously outlined by Moore and Arnold (1996). The count rates for the Radon-219 and Radon-220 circuits were corrected for chance coincidence events using the formula found in Giffin and others (1963). Giffin and others (1963) based this formula on total count rates and the time each circuit is open. Corrected Radon-219 and Radon-220 count rates were then determined by subtracting the correction factor from the raw count rates. Another adjustment to the Radon-220 data was required, due to Radon-219 and its daughter, Polonium-215. It is possible that two Radon-219 molecules decay while the Radon-220 window is open. This leaves the second Radon-219 and the Polonium-215 decays to be recorded in the Radon-220 channel. A second order correction must be made to produce a final Radon-220 count rate (Moore and Arnold, 1996). This second order correction is not needed for the Radon-219 channel (Moore and Arnold, 1996). Radium-223 and Radium-224 count rates were calculated using the final Radon-219 and Radon-220 count rates, respectively, and adjusting for decay, system efficiency, sample volume, and background measurements using the formula: Cx = (CRFinal x / [ DF * Ex]) * (100/V). Cx is the concentration of the desired isotope, CRFinal x is the final count rate of the respective circuit, DF is the decay factor, Ex is the system efficiency, and V is the sample volume (Moore and Arnold, 1996; Diego-Feliu and others, 2020). Data treatment follows that outlined in Diego-Feliu and others (2020) and contains sample sensitivity and uncertainty statements as well as metrics quantifying detection and determination limits (McCurdy and others, 2008) as defined in the accompanying data dictionary (Data_Dictionary_Radium_Measurements.docx) included with this data release. Process_Date: 20240308 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Christopher G. Smith Contact_Position: Research Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8035 Contact_Electronic_Mail_Address: cgsmith@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 158 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geodetic_Model: Horizontal_Datum_Name: WGS 1984 Ellipsoid_Name: WGS_84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Field data files: Comma-separated values files (.csv) of the field data for surface and ground water samples collected from Indian Rocks Beach, Hudson, and Venice (Florida) from six separate field activities conducted from November 2022-March 2024 (altFANs: 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01). Field data files are named as follows: altFAN_FieldData.csv. Detailed attribute descriptions for these files are included data dictionary (Data_Dictionary_Radium_Measurements.docx). These metadata are not complete without this file. All files are available for download in WFS_SW_GW_FieldRadiumData.zip. Entity_and_Attribute_Detail_Citation: The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. Overview_Description: Entity_and_Attribute_Overview: Radium data files: Comma-separated values files (.csv) of the processed data for radium isotopes (Radium-223 and Radium-224) of surface and ground water samples collected from Indian Rocks Beach, Hudson, and Venice (Florida) from six separate field activities conducted from November 2022-March 2024 (altFANs: 22WFS05, 23WFS01, 23WFS02, 23WFS03, 23WFS04, and 24WFS01). Radium data files are named as follows: altFAN_Radium-223-224_data.csv. Detailed attribute descriptions for these files are included data dictionary (Data_Dictionary_Radium_Measurements.docx). These metadata are not complete without this file. All files are available for download in WFS_SW_GW_FieldRadiumData.zip. Entity_and_Attribute_Detail_Citation: The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: United States Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Resource_Description: 22WFS05_FieldData.csv, 23WFS01_FieldData.csv, 23WFS02_FieldData.csv, 23WFS03_FieldData.csv, 23WFS04_FieldData.csv, 24WFS01_FieldData.csv, 22WFS05_Radium-223-224_data.csv, 23WFS01_Radium-223-224_data.csv, 23WFS02_Radium-223-224_data.csv, 23WFS03_Radium-223-224_data.csv, 23WFS04_Radium-223-224_data.csv, 24WFS01_Radium-223-224_data.csv, and Data_Dictionary_Radium_Measurements.docx. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text, Microsoft Word format File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P1ZIOFSX/data/WFS_SW_GW_FieldRadium_Data.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20250212 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Person: USGS SPCMSC Data Management Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: United States Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998