{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-26T08:17:33.183Z"},"system":{"slug":"ca_sdwis_edt__CA1910067__2025","name":"Los Angeles-city, Dept. of Water & Power","state":"CA","year":2025,"url":"https://www.thewatermap.com/water/ca/los-angeles-city-dept-of-water-power/2025","apiUrl":"https://www.thewatermap.com/api/water/ca/los-angeles-city-dept-of-water-power/2025","markdownUrl":"https://www.thewatermap.com/water/ca/los-angeles-city-dept-of-water-power/2025/llms.txt","coordinates":{"latitude":34.0536909,"longitude":-118.242766},"contaminantsMeasured":132,"contaminantsWithFederalLimit":85,"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 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with an increased cancer risk.","measured":{"value":7.171935483870969,"low":null,"high":null,"kind":"point","display":"7.171935483870969","units":"UG/L","statisticType":"avg","samplingContext":"distribution","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 155 samples (DL/2 substitution for 21 non-detects)"},"federalStandard":{"type":"mcl","value":60,"units":"UG/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":36,"low":null,"high":null,"kind":"point","display":"36","units":"UG/L","statisticType":"max_single","samplingContext":"distribution","rawVerbatim":"max detection 36.0 UG/L on 2025-05-07 (134/155 samples detected)"},{"value":7.171935483870969,"low":null,"high":null,"kind":"point","display":"7.171935483870969","units":"UG/L","statisticType":"avg","samplingContext":"distribution","rawVerbatim":"avg over 155 samples (DL/2 substitution for 21 non-detects)"}]},{"analyteId":"ndba","name":"N-Nitrosodi-n-butylamine","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":null,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"UG/L","statisticType":"max_single","samplingContext":"source","censored":true,"detectionLimit":0.002,"rawVerbatim":"all 7 samples below DL (0.002 UG/L)"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":null,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"UG/L","statisticType":"max_single","samplingContext":"source","rawVerbatim":"all 7 samples below DL (0.002 UG/L)"}]},{"analyteId":"ndma","name":"NDMA","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":null,"low":null,"high":null,"kind":"non_detect","display":"Not 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states.","measured":{"value":1.1077307692307692,"low":null,"high":null,"kind":"point","display":"1.1077307692307692","units":"UG/L","statisticType":"avg","samplingContext":"source","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 52 samples (DL/2 substitution for 19 non-detects)"},"federalStandard":{"type":"mcl","value":6,"units":"UG/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.08687837837837838,"low":null,"high":null,"kind":"point","display":"0.08687837837837838","units":"UG/L","statisticType":"avg","samplingContext":"entry_point","rawVerbatim":"avg over 74 samples (DL/2 substitution for 65 non-detects)"},{"value":0.564,"low":null,"high":null,"kind":"point","display":"0.564","units":"UG/L","statisticType":"max_single","samplingContext":"entry_point","rawVerbatim":"max detection 0.564 UG/L on 2025-04-09 (9/74 samples 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risk.","measured":{"value":25.664012345679012,"low":null,"high":null,"kind":"point","display":"25.664012345679012","units":"UG/L","statisticType":"avg","samplingContext":"distribution","censored":false,"detectionLimit":null,"rawVerbatim":"avg over 162 samples (DL/2 substitution for 0 non-detects)"},"federalStandard":{"type":"mcl","value":80,"units":"UG/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":19.813325991189426,"low":null,"high":null,"kind":"point","display":"19.813325991189426","units":"UG/L","statisticType":"avg","samplingContext":"entry_point","rawVerbatim":"avg over 454 samples (DL/2 substitution for 1 non-detects)"},{"value":25.664012345679012,"low":null,"high":null,"kind":"point","display":"25.664012345679012","units":"UG/L","statisticType":"avg","samplingContext":"distribution","rawVerbatim":"avg over 162 samples (DL/2 substitution for 0 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