{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-09T21:57:08.432Z"},"system":{"slug":"epa_sdwis_lcr__IL1670950__2019","name":"Riverton","state":"IL","year":2019,"url":"https://www.thewatermap.com/water/il/riverton/2019","apiUrl":"https://www.thewatermap.com/api/water/il/riverton/2019","markdownUrl":"https://www.thewatermap.com/water/il/riverton/2019/llms.txt","coordinates":{"latitude":39.8663,"longitude":-89.5087},"contaminantsMeasured":1,"contaminantsWithFederalLimit":1,"contaminantsAtOrAboveLimit":0,"contaminantsApproachingLimit":0,"source":{"type":"Consumer Confidence Report (CCR)","description":"Figures are transcribed from the water utility's own annual Consumer Confidence Report, cross-checked by a second model, and approved by a person before publishing."},"families":[{"family":"metal","familyLabel":"Metals","contaminants":[{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":null,"whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0.0017,"low":null,"high":null,"kind":"point","display":"0.0017","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"lead 90th-percentile 0.0017 mg/L (EPA SDWIS LCR, 2 round(s), 2019)"},"federalStandard":{"type":"AL","value":0.015,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.0017,"low":null,"high":null,"kind":"point","display":"0.0017","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"lead 90th-percentile 0.0017 mg/L (EPA SDWIS LCR, 2 round(s), 2019)"}]}]}],"contaminants":[{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":null,"whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0.0017,"low":null,"high":null,"kind":"point","display":"0.0017","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"lead 90th-percentile 0.0017 mg/L (EPA SDWIS LCR, 2 round(s), 2019)"},"federalStandard":{"type":"AL","value":0.015,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.0017,"low":null,"high":null,"kind":"point","display":"0.0017","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"lead 90th-percentile 0.0017 mg/L (EPA SDWIS LCR, 2 round(s), 2019)"}]}]}}