Copper Total Maximum Daily Loads (TMDLs) Watersheds
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The watersheds indicate approximate areas used for determination of the waste load (point sources) and load allocation (nonpoint sources) of each TMDL. Data are compiled by the State of Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division. At a minimum, this dataset is updated every two years after the approval of Michigan's Integrated Report (303d List). Features include a hyperlink to the applicable TMDL document, and the year of USEPA approval. Please direct questions to Molly Rippke, RippkeM@Michigan.gov. Version: November, 2020. Field Name Field Description TotalMaxiumumDailyLoadName Official name of Total Maximum Daily Load (TMDL) TMDLCategory Category of parameter being addressed by the TMDL Year Year the TMDL was issued and approved by EPA TMDLDocument Official TMDL Documentation TMDLID Official TMDL Identifier ImpairedDesignatedUse1 Primary designated use that is impaired and being addressed by the TMDL ImpairedDesignatedUse2 Additional designated use that is impaired and being addressed by the TMDL CauseOfImpairment1 Parameter causing the primary designated use impairment CauseOfImpairment2 Parameter causing the additional designated use impairment EPAID Official EPA TMDL Identifier UniqueID Unique identifier used to differentiate TMDLs within the same category Status EPA approval status of TMDL
本数据集所划定的流域范围，可为各总最大日负荷（Total Maximum Daily Load, TMDL）的废物负荷（点源）与负荷分配（非点源）核算提供近似区域依据。本数据集由密歇根州环境、五大湖与能源部（EGLE）水资源司编制。本数据集至少会在密歇根州综合报告（303d清单）获批后每两年更新一次。数据集包含指向适用TMDL文件的超链接，以及美国环境保护署（United States Environmental Protection Agency, USEPA）的批复年份。如有疑问，请联系Molly Rippke，邮箱：RippkeM@Michigan.gov。数据集版本：2020年11月。 字段说明如下： 1. TotalMaxiumumDailyLoadName：总最大日负荷（TMDL）的官方名称 2. TMDLCategory：该TMDL所针对的参数类别 3. Year：TMDL发布并经美国环境保护署（EPA）批复的年份 4. TMDLDocument：正式TMDL文档 5. TMDLID：官方TMDL标识符 6. ImpairedDesignatedUse1：该TMDL所针对的受损且需修复的首要指定用途 7. ImpairedDesignatedUse2：该TMDL所针对的受损且需修复的额外指定用途 8. CauseOfImpairment1：导致首要指定用途受损的参数 9. CauseOfImpairment2：导致额外指定用途受损的参数 10. EPAID：美国环境保护署官方TMDL标识符 11. UniqueID：用于区分同一类别下不同TMDL的唯一标识符 12. Status：TMDL的EPA批复状态
