Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN>This is a merged set of Isochlor line features into single feature class compiled from the original series of individual 2024 isochlor data layers. Approximate 250 mg/L isochlor for Broward, Palm Beach, Martin, St. Lucie, Lee and Collier Counties. Well and chloride data were obtained from USGS and SFWMD records. The line marks an approximation of the farthest inland extent of the saltwater interface as defined by the 250 mg/L chloride concentration and/or the farthest inland extent of saline surface water. The isochlor is based on the maximum chloride value for the period of March/April/May 2024, with minor exceptions (denoted by an * at the end of the well table at the bottom </SPAN><SPAN>of the published maps</SPAN><SPAN>).</SPAN><SPAN /><SPAN>Chloride and well data from the SFWMD have been furnished by Permittees and have not been validated. Chloride and well data from the USGS are available via </SPAN><A href="http://waterdata.usgs.gov/nwis" STYLE="text-decoration:underline;"><SPAN><SPAN>http://waterdata.usgs.gov/nwis</SPAN></SPAN></A><SPAN><SPAN>and may also be available in the District’s DBHYDRO database </SPAN></SPAN><A href="https://my.sfwmd.gov/dbhydroplsql/show_dbkey_info.main_menu" STYLE="text-decoration:underline;"><SPAN><SPAN>https://my.sfwmd.gov/dbhydroplsql/show_dbkey_info.main_menu</SPAN></SPAN></A><SPAN>.</SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN>The chloride wells used for this project are compiled in a separate point feature class called, "Chloride Concentration Control Points, 2024". </SPAN></P></DIV></DIV></DIV>
Service Item Id: 128fce320d0549948ac891924b7dc1fb
Copyright Text: South Florida Water Management District (SFWMD); United States Geological Survey (USGS)
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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN>This is a merged set of Isochlor line features into single feature class compiled from the original series of individual 2019 isochlor data layers. Approximate 250 mg/L isochlor for Broward, Palm Beach, Martin, St. Lucie, Lee and Collier Counties. Well and chloride data were obtained from USGS and SFWMD records. The line marks an approximation of the farthest inland extent of the saltwater interface as defined by the 250 mg/L chloride concentration and/or the farthest inland extent of saline surface water. The isochlor is based on the maximum chloride value for the period of March/April/May 2019, with minor exceptions (denoted by an * at the end of the well table at the bottom </SPAN><SPAN>of the published maps</SPAN><SPAN>).</SPAN><SPAN /><SPAN>Chloride and well data from the SFWMD have been furnished by Permittees and have not been validated. Chloride and well data from the USGS are available via </SPAN><A href="http://waterdata.usgs.gov/nwis"><SPAN><SPAN>http://waterdata.usgs.gov/nwis</SPAN></SPAN></A><SPAN><SPAN>and may also be available in the District’s DBHYDRO database </SPAN></SPAN><A href="https://my.sfwmd.gov/dbhydroplsql/show_dbkey_info.main_menu"><SPAN><SPAN>https://my.sfwmd.gov/dbhydroplsql/show_dbkey_info.main_menu</SPAN></SPAN></A><SPAN>.</SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN>The chloride wells used for this project are compiled in a separate point feature class called, "Chloride Data, 2019". </SPAN></P></DIV></DIV></DIV>
Service Item Id: 128fce320d0549948ac891924b7dc1fb
Copyright Text: South Florida Water Management District (SFWMD); United States Geological Survey (USGS)
Color: [255, 255, 255, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: baseline Horizontal Alignment: left Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 10 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This is a merged set of Isochlor line features into single feature class compiled from the original series of individual 2014 Isochlor data layers. Approximate 250 mg/L isochlor for Broward, Palm Beach, Martin, St. Lucie, Lee and Collier Counties. Well and chloride data were obtained from USGS and SFWMD records. The line marks an approximation of the farthest inland extent of the saltwater interface as defined by the 250 mg/L chloride concentration and/or the farthest inland extent of saline surface water. The isochlor is based on the average of available chloride values for the period of March/April/May 2014. Chloride and well data from the SFWMD have been furnished by Permittees and have not been validated. Chloride and well data from the USGS are available via http://waterdata.usgs.gov/nwis.</SPAN></P></DIV></DIV></DIV>
Service Item Id: 128fce320d0549948ac891924b7dc1fb
Copyright Text: South Florida Water Management District (SFWMD); United States Geological Survey (USGS)
Color: [255, 255, 255, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 10 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This is a merged set of Isochlor line features into single feature class compiled from the original series of individual 2009 Isochlor data layers. Approximate 250 mg/L isochlor for Broward, Palm Beach, Martin, St. Lucie, Lee and Collier Counties. Well and chloride data were obtained from USGS and SFWMD records. The line marks an approximation of the farthest inland extent of the saltwater interface as defined by the 250 mg/L chloride concentration and/or the farthest inland extent of saline surface water. The isochlor is based on the average of available chloride values for the period of April/May 2009. Chloride and well data from the SFWMD have been furnished by Permittees and have not been validated. Chloride and well data from the USGS are available via </SPAN><A href="http://waterdata.usgs.gov/nwis.The"><SPAN>http://waterdata.usgs.gov/nwis</SPAN></A><SPAN>. The original isochlor line was created in 2010.</SPAN></P><P><SPAN>Version 1.1, March 03, 2015: </SPAN></P><P><SPAN>The original isochlor was updated in 2014/2015 to incorporate new and corrected data, as well as a better understanding of the saline surface water.</SPAN></P><P><SPAN>Version 1.2, May 08, 2015: Update at the S13 structure in Broward County based on corrected data. </SPAN></P><P><SPAN>July 15, 2015: The original isochlor was updated in 2014/2015 to incorporate new and corrected data.</SPAN></P></DIV></DIV></DIV>
Service Item Id: 128fce320d0549948ac891924b7dc1fb
Copyright Text: South Florida Water Management District (SFWMD); United States Geological Survey (USGS)
Color: [255, 255, 255, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 10 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These line features produced by the USGS represent an approximate inland extent of the saltwater interface along South Florida's East Coast over time. The approximate saltwater interface lines in Miami-Dade County are represented by the 1,000-mg/L isochlor at the base of the Biscayne Aquifer. These datasets were originally obtained from the USGS and then merged into a single feature class to combine the years dating back to 1904. In a separate effort, the SFWMD develops maps documenting the inland extent of the saltwater interface as defined by the 250 milligrams per liter (mg/L) chloride concentration in groundwater. This effort is done every 5 years for the East Coast and West Coast Aquifers excluding the Biscayne Aquifer in Miami-Dade. Those datasets are found in separeate feature classes for each year to date: Merged Isochlor 2009, Merged Isochlor 2014, and Merged Isochlor 2019. </SPAN></P><P><SPAN>Chloride and well data from the USGS are available via </SPAN><A href="https://waterdata.usgs.gov/nwis."><SPAN>https://waterdata.usgs.gov/nwis.</SPAN></A></P></DIV></DIV></DIV>
Service Item Id: 128fce320d0549948ac891924b7dc1fb
Copyright Text: U.S. Geological Survey (USGS), Miami-Dade County
SFWMD, Water Supply Planning and Implementation: Water Supply Planning and Implementation coordinates with Geospatial Services to manage and maintain geospatial products and data related to their business function.