Issue Contributing Area (ICA)
收藏Lake Simcoe Region Conservation Authority Open Data2025-03-06 更新2026-05-02 收录
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https://lsrca-open-data-camaps.opendata.arcgis.com/datasets/camaps::issue-contributing-area-ica-1
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资源简介：
Last data update: March 14, 2017 A polygon layer identifying areas where human activity may be contributing to poor water quality in a municipal well or surface water intake. Issue Contributing Areas are identified though groundwater modelling exercises undertaken by consultants, where required. Each individual ICA has a technical report outlining their processes.
Under the Clean Water Act, when a parameter in a municipal well exceeds an Ontario Drinking Water Standard, or is trending towards and exceedance, an "Issue" is declared. An Issue Contributing Area is that part of the landscape where anthropogenic activity is believed to be contributing to the exceedance.
提供机构：
Conservation Ontario
创建时间：
2025-03-06
