{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-26T10:12:12.100Z"},"system":{"slug":"ca_sdwis_edt__CA3010010__2023","name":"City of Fullerton","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/fullerton/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/fullerton/2023","markdownUrl":"https://www.thewatermap.com/water/ca/fullerton/2023/llms.txt","coordinates":{"latitude":33.8708215,"longitude":-117.929416},"contaminantsMeasured":110,"contaminantsWithFederalLimit":61,"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 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non-detects)"}]},{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":null,"whatItIs":"A mineral often added to drinking water to help prevent tooth decay.","whyItMatters":"Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.","measured":{"value":0.51,"low":null,"high":null,"kind":"point","display":"0.51","units":"MG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 2 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":{"type":"mcl","value":2,"units":"MG/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.51,"low":null,"high":null,"kind":"point","display":"0.51","units":"MG/L","statisticType":"avg","samplingContext":"source","rawVerbatim":"avg over 2 samples (DL/2 substitution for 0 non-detects)"},{"value":0.51,"low":null,"high":null,"kind":"point","display":"0.51","units":"MG/L","statisticType":"max_single","samplingContext":"source","rawVerbatim":"max detection 0.51 MG/L on 2023-10-30 (2/2 samples detected)"}]},{"analyteId":"nitrate","name":"Nitrate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":null,"whatItIs":"A compound from fertilizer runoff, septic systems, and erosion of natural deposits.","whyItMatters":"Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.","measured":{"value":2.89421052631579,"low":null,"high":null,"kind":"point","display":"2.89421052631579","units":"MG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 19 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":{"type":"mcl","value":10,"units":"MG/L","enforceable":true},"status":{"key":"under","label":"Within the 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exposure is linked to skin, bladder, and lung cancer.","measured":{"value":1.35,"low":null,"high":null,"kind":"point","display":"1.35","units":"UG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 2 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":{"type":"mcl","value":10,"units":"UG/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.35,"low":null,"high":null,"kind":"point","display":"1.35","units":"UG/L","statisticType":"avg","samplingContext":"source","rawVerbatim":"avg over 2 samples (DL/2 substitution for 0 non-detects)"},{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"UG/L","statisticType":"max_single","samplingContext":"source","rawVerbatim":"max detection 1.4 UG/L on 2023-09-05 (2/2 samples 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