Mandatory Phosphate Mine Boundaries 2010

<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Mandatory Phosphate Mine Boundaries layer contains the Conceptual boundaries of all Active and Inactive Mandatory Phosphate Mines within Florida by the year 2010. 'Mandatory Phosphate Mines' does not indicate that the area is required to be mined for phosphate; 'Mandatory' refers to the regulatory status of the land. Land mined for phosphate since July 1, 1975 is 'Mandatory,' and is required by Florida law to be reclaimed (contoured and re-vegetated). Land mined prior to July 1, 1975 was not required to be reclaimed. This layer provides the mine boundary for mines that are subject to the regulatory requirements of Chapter 378, Part III, F.S. and/or Chapter 373, Part IV. F.S. and Chapter 62C-16, F.A.C. Mandatory phosphate mining occurs primarily in the Central Florida Phosphate Mining District in Polk, Hillsborough, Manatee, and Hardee counties and one mine in North Florida in Hamilton County. This layer was designed to provide the Bureau of Mining and Minerals Regulation with a graphical representation of the Mandatory Phosphate boundaries for planning and management purposes. Because this data is a work in progress, it may contain errors such as missing features, outdated features, overlapping features, erroneous status of features, variations in accuracy, or attribute errors. This layer was created and maintained by the Florida Department of Environmental Protection, Bureau of Mining and Minerals Regulation.</SPAN></P></DIV></DIV></DIV>

强制磷酸盐矿（Mandatory Phosphate Mines）图层包含截至2010年佛罗里达州境内所有在用及停用的强制磷酸盐矿的概念性边界。"强制磷酸盐矿"并非指该区域必须开采磷酸盐；"强制"指的是土地的监管属性。1975年7月1日之后因开采磷酸盐而被占用的土地属于"强制磷酸盐矿"范畴，根据佛罗里达州法律，此类土地需进行复垦（包括地形修整与植被恢复）。而1975年7月1日之前开采过磷酸盐的土地则无复垦义务。本图层为受《佛罗里达州法典》（F.S.）第378章第三部分、第373章第四部分以及《佛罗里达州行政法典》（F.A.C.）第62C-16章监管要求的矿山提供边界信息。强制磷酸盐开采活动主要集中在佛罗里达州中部的磷酸盐矿区，涉及波尔克、希尔斯伯勒、马纳蒂与哈迪县，另有一处矿山位于佛罗里达州北部的汉密尔顿县。本图层旨在为矿业与矿物监管局提供强制磷酸盐矿边界的可视化展示，以服务于规划与管理工作。由于本数据仍在完善中，可能存在要素缺失、信息过时、要素重叠、要素状态错误、精度偏差或属性错误等问题。本图层由佛罗里达州环境保护部矿业与矿物监管局创建并维护。