{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-26T08:02:32.415Z"},"system":{"slug":"ca_sdwis_edt__CA3010053__2026","name":"City of Huntington Beach","state":"CA","year":2026,"url":"https://www.thewatermap.com/water/ca/huntington-beach/2026","apiUrl":"https://www.thewatermap.com/api/water/ca/huntington-beach/2026","markdownUrl":"https://www.thewatermap.com/water/ca/huntington-beach/2026/llms.txt","coordinates":{"latitude":33.6783336,"longitude":-118.000016},"contaminantsMeasured":78,"contaminantsWithFederalLimit":37,"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 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for 0 non-detects)"}]},{"analyteId":"potassium","name":"Potassium","family":"metal","familyLabel":"Metals","casrn":null,"whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"Not federally regulated for health.","measured":{"value":2.7,"low":null,"high":null,"kind":"point","display":"2.7","units":"MG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 9 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.7,"low":null,"high":null,"kind":"point","display":"2.7","units":"MG/L","statisticType":"avg","samplingContext":"source","rawVerbatim":"avg over 9 samples (DL/2 substitution for 0 non-detects)"},{"value":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"MG/L","statisticType":"max_single","samplingContext":"source","rawVerbatim":"max detection 3.4 MG/L on 2026-02-17 (9/9 samples detected)"}]},{"analyteId":"sodium","name":"Sodium","family":"metal","familyLabel":"Metals","casrn":null,"whatItIs":"A naturally occurring salt component.","whyItMatters":"Not federally regulated for health; relevant for people on sodium-restricted diets.","measured":{"value":48.84444444444445,"low":null,"high":null,"kind":"point","display":"48.84444444444445","units":"MG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 9 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":48.84444444444445,"low":null,"high":null,"kind":"point","display":"48.84444444444445","units":"MG/L","statisticType":"avg","samplingContext":"source","rawVerbatim":"avg over 9 samples (DL/2 substitution for 0 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