U.S. Water Quality Data by ZIP Code
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下载链接：
https://figshare.com/articles/dataset/U_S_Water_Quality_Data_by_ZIP_Code/31801930
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资源简介：
Water quality violations, lead/copper levels, radon zones, and Home Safety Scores for 6,300+ U.S. ZIP codes.
Based on EPA Safe Drinking Water Information System (SDWIS) data. Includes 90th percentile lead and copper levels from LCR sample results, county-level EPA radon zones, and a composite Home Safety Score (0-100, A-F grade).
Updated weekly. Full methodology at zipcheckup.com/methodology.
创建时间：
2026-03-18
