{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T02:09:14.183Z"},"system":{"slug":"ca__temescal-valley-water-district__CA3310074","name":"Temescal Valley Water District — Temescal Valley, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/temescal-valley-water-district-temescal-valley-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/temescal-valley-water-district-temescal-valley-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/temescal-valley-water-district-temescal-valley-ca/2023/llms.txt","coordinates":{"latitude":33.7631595,"longitude":-117.485255},"contaminantsMeasured":49,"contaminantsWithFederalLimit":14,"contaminantsAtOrAboveLimit":1,"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":"disinfectant","familyLabel":"Disinfectants","contaminants":[{"analyteId":"chlorine","name":"Chlorine","family":"disinfectant","familyLabel":"Disinfectants","casrn":null,"whatItIs":"A disinfectant added to drinking water to kill bacteria and viruses.","whyItMatters":"Effective and necessary, but high residual levels can cause taste and odor issues; 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regulated nationally only within the total-chromium limit, with stricter limits in some states.","measured":{"value":0.38,"low":null,"high":null,"kind":"point","display":"0.38","units":"ug/L","statisticType":"average","samplingContext":"zone:Riverside System Combined Source Water","censored":false,"detectionLimit":null,"rawVerbatim":"0.38"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.38,"low":null,"high":null,"kind":"point","display":"0.38","units":"ug/L","statisticType":"average","samplingContext":"zone:Riverside System Combined Source Water","rawVerbatim":"0.38"},{"value":2.1,"low":0,"high":2.1,"kind":"range","display":"0–2.1","units":"ug/L","statisticType":"range","samplingContext":"zone:Riverside System Combined Source Water","rawVerbatim":"ND - 2.1"}]},{"analyteId":"copper","name":"Copper","family":"metal","familyLabel":"Metals","casrn":"7440-50-8","whatItIs":"A metal that enters water from corroding household plumbing.","whyItMatters":"Short-term exposure causes stomach distress; 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