Wetlands of Special State Concern

A subset of wetland features classified under COMAR 26.23.06.01 and 0.2 as Wetlands of Special State Concern (WSSC). WSSCs generally represent the best examples of Maryland’s nontidal wetlands due to their exceptional ecological and educational value (at the time of designation), affording them special protections. Permit applications for WSSCs receive the most stringent review, and activities which involve any clearing of vegetation, filling, excavating, flooding or draining are regulated and an expanded buffer of 100 ft. in width surrounding the wetland is applied. As with proposed activities in all nontidal wetlands, alternatives that avoid and minimize impacts to wetlands must be evaluated. The Maryland Department of the Environment is responsible for identifying and regulating these wetlands and the Maryland Department of Natural Resources uses WSSC data for site and regulatory application reviews and management plans as part of the agency’s natural resource management objectives. In general, the US Fish and Wildlife Service's National Wetlands Inventory wetlands provide the basis for identifying these special wetlands. Additional information, determined from field inspections, is used to identify and classify these areas. In 1988-89, Maryland DNR (then responsible for identifying and protecting WSSC's) contracted with Salisbury State University to produce Wetlands Guidance maps that contained Wetlands of Special State Concern (WSSC). Digital WSSC files were produced as part of that effort. In 1997, with new WSSC's identified in COMAR, Maryland DNR began the process of creating an updated file and producing a new series of guidance maps. This layer is derived from a wetland layer created by Maryland DNR. The most recent publicly available version of that layer is accessible at: Maryland Wetlands - Wetlands, Polygon (Special State Concern) | Maryland's GIS Data Catalog Layer name: Maryland Wetlands - Wetlands, Polygon (Special State Concern) For more information, contact: GIS Manager Information Technology & Innovation (ITI) Montgomery County Planning Department, MNCPPC T: 301-650-5620本数据集为按《马里兰州行政法规汇编》(COMAR)第26.23.06.01条及第0.2条归类为州特别关注湿地(Wetlands of Special State Concern, WSSC)的湿地要素子集。州特别关注湿地通常是马里兰州非潮汐湿地的典范，因其在划定之时即具备卓越的生态与教育价值，故而获得特殊保护。针对州特别关注湿地的许可申请将接受最为严格的审查；任何涉及植被清理、填埋、开挖、蓄水或排水的活动均受监管，且需在湿地周边设置宽度达100英尺的扩展缓冲区。与所有非潮汐湿地内的拟开展活动一致，必须对可规避并减轻湿地影响的替代方案进行评估。马里兰州环境厅负责识别与监管此类湿地，而马里兰州自然资源厅则将州特别关注湿地数据用于场地与监管申请审查及管理规划，作为该机构自然资源管理目标的组成部分。总体而言，美国鱼类及野生动物管理局的国家湿地清单湿地数据是识别此类特殊湿地的基础。此外还会结合实地勘查获取的额外信息，对这些区域进行识别与分类。1988至1989年间，当时负责识别与保护州特别关注湿地的马里兰州自然资源厅，与索尔兹伯里州立大学合作编制了包含州特别关注湿地内容的《湿地指导地图集》，此次合作产出了数字化的州特别关注湿地数据集文件。1997年，随着《马里兰州行政法规汇编》中新纳入了州特别关注湿地条目，马里兰州自然资源厅启动了数据集更新流程，并编制了全新系列的指导地图。本数据图层源自马里兰州自然资源厅制作的湿地图层。该图层最新的公开版本可通过以下路径获取：马里兰州湿地——多边形格式州特别关注湿地 | 马里兰州地理信息系统数据目录。图层名称：马里兰州湿地——多边形格式州特别关注湿地。如需更多信息，请联系：蒙哥马利县规划局信息技术与创新部(ITI)地理信息系统管理员，蒙哥马利县规划与规划委员会(MNCPPC)，电话：301-650-5620。