Outstanding State Resource Waters

Rule 98(R 323.1098) of the Part 4 "Water Quality Standards" designated certain waters (contained in this layer) as protected from degradation. These waters include those that pass through National Parks or Shorelines, and designated Wild Rivers. This layer was created using high resolution NHD flowlines and the State of Michigans hydrology lines files (where no NHD existed on islands), using the descriptions found in Rule 98. Stream lengths (in miles) were measured using the high definition NHD lines, so may not precisely match the mileage length descriptions in Rule 98. The field "OSRW_type" is either "Designated OSRW" or "Tributary to OSRW". Tributaries to the OSRW are those upstream of the designated OSRW as described in the Rule, and receive protections as described in the Rule. Field Name Description OSRW Name Geographic Name of waters contained in an Outstanding State Resource Waterbody OSRW Type Type of Outstand State Resource Waterbody, either a designated OSRW or tributary to a designated OSRW For questions or more information about this dataset, please reach out to Chris Vandenberg of EGLE's Great Lakes Watersheds Assessment, Restoration, and Management Section at [e-mail].第4编"水质标准"中的第98条规则（编号R 323.1098）将本图层涵盖的特定水域划定为禁止退化的保护水域。此类水域包含流经国家公园或海岸线的水域，以及经划定的野生河流。 本图层依托高分辨率NHD（National Hydrography Dataset，国家水文数据集）流线与密歇根州水文线文件（岛屿区域无NHD数据时采用该文件），结合第98条规则的相关描述构建而成。 本数据集通过高清NHD流线测量了溪流长度（单位：英里），因此该长度数值可能与第98条规则中记载的里程描述不完全一致。 字段"OSRW_type"的取值为"Designated OSRW"或"Tributary to OSRW"。根据本规则，OSRW（Outstanding State Resource Waterbody，杰出州资源水体）支流指划定的OSRW上游水域，同样可享有规则所规定的保护权益。 字段名称及说明如下： 1. OSRW名称（OSRW Name）：杰出州资源水体所包含水域的地理名称； 2. OSRW类型（OSRW Type）：杰出州资源水体的类型，分为指定OSRW或指定OSRW的支流。 若您对此数据集存有疑问或需获取更多相关信息，请联系密歇根州环境质量部（EGLE）大湖流域评估、修复与管理部门的Chris Vandenberg，联系方式：[e-mail]。