{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-26T07:08:12.017Z"},"system":{"slug":"ca_sdwis_edt__CA3310040__2025","name":"Fern Valley Wd","state":"CA","year":2025,"url":"https://www.thewatermap.com/water/ca/fern-valley-wd/2025","apiUrl":"https://www.thewatermap.com/api/water/ca/fern-valley-wd/2025","markdownUrl":"https://www.thewatermap.com/water/ca/fern-valley-wd/2025/llms.txt","coordinates":{"latitude":33.7818729,"longitude":-117.2298477},"contaminantsMeasured":73,"contaminantsWithFederalLimit":53,"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":"disinfection_byproduct","familyLabel":"Disinfection byproducts","contaminants":[{"analyteId":"bromodichloromethane","name":"Bromodichloromethane","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":"A trihalomethane disinfection byproduct.","whyItMatters":"Counted within regulated total trihalomethanes; 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