{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T00:39:52.858Z"},"system":{"slug":"ca__joint-regional-water-supply-system__CA3010071","name":"Joint Regional Water Supply System — Laguna Beach, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/joint-regional-water-supply-system-laguna-beach-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/joint-regional-water-supply-system-laguna-beach-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/joint-regional-water-supply-system-laguna-beach-ca/2023/llms.txt","coordinates":{"latitude":33.5426975,"longitude":-117.785366},"contaminantsMeasured":33,"contaminantsWithFederalLimit":10,"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":"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; the EPA caps the residual disinfectant level.","measured":{"value":98.5,"low":null,"high":null,"kind":"point","display":"98.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"98.5"},"federalStandard":{"type":"MCL","value":4000,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":98.5,"low":null,"high":null,"kind":"point","display":"98.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"98.5"},{"value":680,"low":0,"high":680,"kind":"range","display":"0–680","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 680"}]}]},{"family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","contaminants":[{"analyteId":"bromate","name":"Bromate","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"15541-45-4","whatItIs":"A disinfection byproduct formed when bromide-containing water is treated with ozone.","whyItMatters":"Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":0,"high":1.6,"kind":"range","display":"0–1.6","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.6"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"chlorite","name":"Chlorite","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14998-27-7","whatItIs":null,"whyItMatters":null,"measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":1,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0.09,"low":0,"high":0.09,"kind":"range","display":"0–0.09","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.09"}]},{"analyteId":"haa5","name":"HAA5","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":"Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.","whyItMatters":"Long-term exposure above the federal limit is associated with an increased cancer risk.","measured":{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"16"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":14,"low":4.8,"high":14,"kind":"range","display":"4.8–14","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.8 - 14"},{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"16"}]},{"analyteId":"tthm","name":"TTHM","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":"Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.","whyItMatters":"Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.","measured":{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"51"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"51"},{"value":45,"low":20,"high":45,"kind":"range","display":"20–45","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"20 - 45"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"chloride","name":"Chloride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16887-00-6","whatItIs":"A naturally occurring salt compound.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.","measured":{"value":112,"low":null,"high":null,"kind":"point","display":"112","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"112"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":116,"low":93,"high":116,"kind":"range","display":"93–116","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"93 - 116"},{"value":119,"low":98.4,"high":119,"kind":"range","display":"98.4–119","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"98.4 - 119"},{"value":112,"low":null,"high":null,"kind":"point","display":"112","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"112"},{"value":104,"low":null,"high":null,"kind":"point","display":"104","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"104"},{"value":123,"low":103,"high":123,"kind":"range","display":"103–123","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"103 - 123"},{"value":110,"low":null,"high":null,"kind":"point","display":"110","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"110"}]},{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16984-48-8","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":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.7"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.28,"low":null,"high":null,"kind":"point","display":"0.28","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.28"},{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.7"},{"value":0.38,"low":0.31,"high":0.38,"kind":"range","display":"0.31–0.38","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.31 - 0.38"},{"value":0.8,"low":0.6,"high":0.8,"kind":"range","display":"0.6–0.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.6 - 0.8"},{"value":0.35,"low":null,"high":null,"kind":"point","display":"0.35","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.35"},{"value":0.28,"low":null,"high":null,"kind":"point","display":"0.28","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.28"}]},{"analyteId":"nitrate","name":"Nitrate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-55-8","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,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2"}]},{"analyteId":"sulfate","name":"Sulfate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14808-79-8","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"No health-based federal limit; high levels can have a laxative effect and a bitter taste.","measured":{"value":237,"low":null,"high":null,"kind":"point","display":"237","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"237"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":744,"low":150,"high":744,"kind":"range","display":"150–744","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"150 - 744"},{"value":224,"low":null,"high":null,"kind":"point","display":"224","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"224"},{"value":253,"low":196,"high":253,"kind":"range","display":"196–253","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"196 - 253"},{"value":165,"low":null,"high":null,"kind":"point","display":"165","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"165"},{"value":243,"low":228,"high":243,"kind":"range","display":"228–243","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"228 - 243"},{"value":237,"low":null,"high":null,"kind":"point","display":"237","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"237"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"analyteId":"aluminum","name":"Aluminum","family":"metal","familyLabel":"Metals","casrn":"7429-90-5","whatItIs":"A common element sometimes used as a treatment coagulant.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels can discolor water.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":110,"low":0,"high":110,"kind":"range","display":"0–110","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 110"},{"value":0.11,"low":0,"high":0.11,"kind":"range","display":"0–0.11","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.11"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"arsenic","name":"Arsenic","family":"metal","familyLabel":"Metals","casrn":"7440-38-2","whatItIs":"A naturally occurring element that also enters water from industry and agriculture.","whyItMatters":"A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.27,"low":2,"high":2.27,"kind":"range","display":"2–2.27","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 2.27"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"}]},{"analyteId":"barium","name":"Barium","family":"metal","familyLabel":"Metals","casrn":"7440-39-3","whatItIs":"A metal from erosion of natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can raise blood pressure.","measured":{"value":0.129,"low":null,"high":null,"kind":"point","display":"0.129","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.129"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.129,"low":null,"high":null,"kind":"point","display":"0.129","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.129"},{"value":0.141,"low":0.113,"high":0.141,"kind":"range","display":"0.113–0.141","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.113 - 0.141"},{"value":0.124,"low":null,"high":null,"kind":"point","display":"0.124","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.124"},{"value":0.124,"low":null,"high":null,"kind":"point","display":"0.124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.124"}]},{"analyteId":"boron","name":"Boron","family":"metal","familyLabel":"Metals","casrn":"7440-42-8","whatItIs":"A naturally occurring element from rock and soil.","whyItMatters":"No enforceable federal limit; the EPA has issued a health advisory level.","measured":{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.14"},"federalStandard":{"type":"NL","value":1,"units":"mg/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.14"},{"value":0.153,"low":0.127,"high":0.153,"kind":"range","display":"0.127–0.153","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.127 - 0.153"},{"value":0.138,"low":null,"high":null,"kind":"point","display":"0.138","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.138"},{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.14"}]},{"analyteId":"calcium","name":"Calcium","family":"metal","familyLabel":"Metals","casrn":"7440-70-2","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":72.7,"low":null,"high":null,"kind":"point","display":"72.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"72.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":78,"low":58,"high":78,"kind":"range","display":"58–78","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"58 - 78"},{"value":68,"low":null,"high":null,"kind":"point","display":"68","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"68"},{"value":72.7,"low":null,"high":null,"kind":"point","display":"72.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"72.7"},{"value":64,"low":46,"high":64,"kind":"range","display":"46–64","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"46 - 64"},{"value":79.5,"low":67.2,"high":79.5,"kind":"range","display":"67.2–79.5","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"67.2 - 79.5"},{"value":52,"low":null,"high":null,"kind":"point","display":"52","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"52"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0.081,"low":null,"high":null,"kind":"point","display":"0.081","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.081"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.081,"low":null,"high":null,"kind":"point","display":"0.081","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.081"}]},{"analyteId":"lithium","name":"Lithium","family":"metal","familyLabel":"Metals","casrn":"7439-93-2","whatItIs":"A naturally occurring element found in some groundwater.","whyItMatters":"No enforceable federal limit; on the EPA contaminant candidate list for further study.","measured":{"value":65.7,"low":null,"high":null,"kind":"point","display":"65.7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"65.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":65.7,"low":null,"high":null,"kind":"point","display":"65.7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"65.7"},{"value":40,"low":null,"high":null,"kind":"point","display":"40","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"40"},{"value":47,"low":32,"high":47,"kind":"range","display":"32–47","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"32 - 47"},{"value":67.2,"low":64.2,"high":67.2,"kind":"range","display":"64.2–67.2","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"64.2 - 67.2"}]},{"analyteId":"magnesium","name":"Magnesium","family":"metal","familyLabel":"Metals","casrn":"7439-95-4","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":27.9,"low":null,"high":null,"kind":"point","display":"27.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"27.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"18"},{"value":27.9,"low":null,"high":null,"kind":"point","display":"27.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"27.9"},{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"18"},{"value":26,"low":null,"high":null,"kind":"point","display":"26","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"26"},{"value":29.8,"low":26.2,"high":29.8,"kind":"range","display":"26.2–29.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"26.2 - 29.8"},{"value":29,"low":22,"high":29,"kind":"range","display":"22–29","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 29"}]},{"analyteId":"manganese","name":"Manganese","family":"metal","familyLabel":"Metals","casrn":"7439-96-5","whatItIs":"A naturally occurring metal from soil and rock.","whyItMatters":"No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.","measured":{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.44"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.44"},{"value":47,"low":0,"high":47,"kind":"range","display":"0–47","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 47"}]},{"analyteId":"potassium","name":"Potassium","family":"metal","familyLabel":"Metals","casrn":"7440-09-7","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"Not federally regulated for health.","measured":{"value":5.9,"low":null,"high":null,"kind":"point","display":"5.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"5.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.9,"low":null,"high":null,"kind":"point","display":"4.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4.9"},{"value":5.9,"low":null,"high":null,"kind":"point","display":"5.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"5.9"},{"value":21.2,"low":4.83,"high":21.2,"kind":"range","display":"4.83–21.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.83 - 21.2"},{"value":5.4,"low":4.4,"high":5.4,"kind":"range","display":"4.4–5.4","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.4 - 5.4"}]},{"analyteId":"sodium","name":"Sodium","family":"metal","familyLabel":"Metals","casrn":"7440-23-5","whatItIs":"A naturally occurring salt component.","whyItMatters":"Not federally regulated for health; relevant for people on sodium-restricted diets.","measured":{"value":105,"low":null,"high":null,"kind":"point","display":"105","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"105"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":58,"low":null,"high":null,"kind":"point","display":"58","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"58"},{"value":105,"low":null,"high":null,"kind":"point","display":"105","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"105"},{"value":114,"low":90.3,"high":114,"kind":"range","display":"90.3–114","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"90.3 - 114"},{"value":58,"low":null,"high":null,"kind":"point","display":"58","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"58"},{"value":103,"low":null,"high":null,"kind":"point","display":"103","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"103"},{"value":116,"low":90,"high":116,"kind":"range","display":"90–116","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"90 - 116"}]}]},{"family":"other","familyLabel":"Other","contaminants":[{"analyteId":"chlorine_total","name":"Chlorine Total","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":2.04,"low":null,"high":null,"kind":"point","display":"2.04","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.04"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.04,"low":null,"high":null,"kind":"point","display":"2.04","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.04"},{"value":2.9,"low":0.05,"high":2.9,"kind":"range","display":"0.05–2.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.05 - 2.9"}]}]},{"family":"physical_aggregate","familyLabel":"Physical & aggregate","contaminants":[{"analyteId":"alkalinity","name":"Alkalinity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of the water's capacity to neutralize acids.","whyItMatters":"Not federally regulated for health; relevant to corrosion control and treatment.","measured":{"value":124,"low":null,"high":null,"kind":"point","display":"124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"124"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":144,"low":115,"high":144,"kind":"range","display":"115–144","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"115 - 144"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"61"},{"value":124,"low":null,"high":null,"kind":"point","display":"124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"124"},{"value":114,"low":null,"high":null,"kind":"point","display":"114","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"114"},{"value":123,"low":105,"high":123,"kind":"range","display":"105–123","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"105 - 123"},{"value":78,"low":50,"high":78,"kind":"range","display":"50–78","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"50 - 78"}]},{"analyteId":"color","name":"Color","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of visible tint in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":2,"low":1,"high":2,"kind":"range","display":"1–2","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1 - 2"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":8,"low":0,"high":8,"kind":"range","display":"0–8","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 8"}]},{"analyteId":"hardness","name":"Hardness","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of dissolved calcium and magnesium minerals.","whyItMatters":"Not federally regulated for health; affects scaling, soap use, and taste.","measured":{"value":295,"low":null,"high":null,"kind":"point","display":"295","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"295"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":270,"low":null,"high":null,"kind":"point","display":"270","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"270"},{"value":313,"low":281,"high":313,"kind":"range","display":"281–313","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"281 - 313"},{"value":18,"low":16,"high":18,"kind":"range","display":"16–18","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"16 - 18"},{"value":211,"low":193,"high":211,"kind":"range","display":"193–211","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"193 - 211"},{"value":305,"low":235,"high":305,"kind":"range","display":"235–305","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"235 - 305"},{"value":295,"low":null,"high":null,"kind":"point","display":"295","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"295"},{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"17"},{"value":202,"low":null,"high":null,"kind":"point","display":"202","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"202"},{"value":18,"low":14,"high":18,"kind":"range","display":"14–18","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"14 - 18"},{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"16"}]},{"analyteId":"odor","name":"Odor","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of detectable smell in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"},{"value":4,"low":0,"high":4,"kind":"range","display":"0–4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"}]},{"analyteId":"ph","name":"pH","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how acidic or basic the water is.","whyItMatters":"Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.","measured":{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"8.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":8.4,"low":7.9,"high":8.4,"kind":"range","display":"7.9–8.4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.9 - 8.4"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"8.2"},{"value":8.1,"low":null,"high":null,"kind":"point","display":"8.1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"8.1"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"8.2"},{"value":7.9,"low":null,"high":null,"kind":"point","display":"7.9","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.9"},{"value":8.6,"low":7.4,"high":8.6,"kind":"range","display":"7.4–8.6","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.4 - 8.6"}]},{"analyteId":"specific_conductance","name":"Specific Conductance","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how well water conducts electricity, which tracks dissolved mineral content.","whyItMatters":"Not federally regulated for health; used as a proxy for total dissolved solids.","measured":{"value":1065,"low":null,"high":null,"kind":"point","display":"1065","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1,065"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":979,"low":null,"high":null,"kind":"point","display":"979","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"979"},{"value":1065,"low":null,"high":null,"kind":"point","display":"1065","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1,065"},{"value":744,"low":null,"high":null,"kind":"point","display":"744","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"744"},{"value":744,"low":null,"high":null,"kind":"point","display":"744","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"744"},{"value":1126,"low":1008,"high":1126,"kind":"range","display":"1008–1126","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1,008 - 1,126"},{"value":1070,"low":888,"high":1070,"kind":"range","display":"888–1070","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"888 - 1,070"}]},{"analyteId":"toc","name":"TOC","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total organic carbon — a measure of organic material dissolved in the water.","whyItMatters":"Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.","measured":{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.4"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.4"},{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.9"},{"value":2.5,"low":2,"high":2.5,"kind":"range","display":"2–2.5","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 2.5"}]},{"analyteId":"tds","name":"Total Dissolved Solids","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total dissolved solids — the combined content of all dissolved minerals and salts.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.","measured":{"value":642,"low":null,"high":null,"kind":"point","display":"642","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"642"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":514,"low":465,"high":514,"kind":"range","display":"465–514","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"465 - 514"},{"value":621,"low":null,"high":null,"kind":"point","display":"621","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"621"},{"value":642,"low":null,"high":null,"kind":"point","display":"642","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"642"},{"value":712,"low":588,"high":712,"kind":"range","display":"588–712","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"588 - 712"},{"value":496,"low":null,"high":null,"kind":"point","display":"496","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"496"},{"value":686,"low":556,"high":686,"kind":"range","display":"556–686","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"556 - 686"}]},{"analyteId":"turbidity","name":"Turbidity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of cloudiness from suspended particles in the water.","whyItMatters":"High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.","measured":{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.19"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[{"context":"plant:Metropolitan Water District Diemer Filtration Plant","label":"Metropolitan Water District Diemer Filtration Plant","kind":"plant","units":"NTU","average":null,"range":null,"ratio":0.06},{"context":"plant:IRVINE RANCH WATER DISTRICT BAKER WATER TREATMENT PLANT","label":"Irvine Ranch Water District Baker Water Treatment Plant","kind":"plant","units":"NTU","average":null,"range":null,"ratio":0.043}],"measurements":[{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"0.17"},{"value":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"NTU","statisticType":"reported_level","samplingContext":"plant:Metropolitan Water District Diemer Filtration Plant","rawVerbatim":"0.06"},{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.17"},{"value":0.043,"low":null,"high":null,"kind":"point","display":"0.043","units":"NTU","statisticType":"reported_level","samplingContext":"plant:IRVINE RANCH WATER DISTRICT BAKER WATER TREATMENT PLANT","rawVerbatim":"0.043"},{"value":0.35,"low":0,"high":0.35,"kind":"range","display":"0–0.35","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.35"},{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"average","samplingContext":"system","rawVerbatim":"0.19"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0.3,"low":0,"high":0.3,"kind":"range","display":"0–0.3","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.3"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"gross_alpha","name":"Gross Alpha","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal limit increases cancer risk.","measured":{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"3.8"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":0,"high":5,"kind":"range","display":"0–5","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5"},{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"3.8"},{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"3.8"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"gross_beta","name":"Gross Beta Particle Activity","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross beta particle activity — a combined measure of beta-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal screening level increases cancer risk.","measured":{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4.6"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4"},{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.6"},{"value":5,"low":0,"high":5,"kind":"range","display":"0–5","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5"}]},{"analyteId":"uranium","name":"Uranium","family":"radionuclide","familyLabel":"Radionuclides","casrn":"7440-61-1","whatItIs":"A naturally occurring radioactive metal from erosion of natural deposits.","whyItMatters":"Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.","measured":{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.2"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.2"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2.2"}]}]}],"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; the EPA caps the residual disinfectant level.","measured":{"value":98.5,"low":null,"high":null,"kind":"point","display":"98.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"98.5"},"federalStandard":{"type":"MCL","value":4000,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":98.5,"low":null,"high":null,"kind":"point","display":"98.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"98.5"},{"value":680,"low":0,"high":680,"kind":"range","display":"0–680","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 680"}]},{"analyteId":"bromate","name":"Bromate","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"15541-45-4","whatItIs":"A disinfection byproduct formed when bromide-containing water is treated with ozone.","whyItMatters":"Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":0,"high":1.6,"kind":"range","display":"0–1.6","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.6"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"chlorite","name":"Chlorite","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14998-27-7","whatItIs":null,"whyItMatters":null,"measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":1,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0.09,"low":0,"high":0.09,"kind":"range","display":"0–0.09","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.09"}]},{"analyteId":"haa5","name":"HAA5","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":"Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.","whyItMatters":"Long-term exposure above the federal limit is associated with an increased cancer risk.","measured":{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"16"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":14,"low":4.8,"high":14,"kind":"range","display":"4.8–14","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.8 - 14"},{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"16"}]},{"analyteId":"tthm","name":"TTHM","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":null,"whatItIs":"Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.","whyItMatters":"Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.","measured":{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"51"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"51"},{"value":45,"low":20,"high":45,"kind":"range","display":"20–45","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"20 - 45"}]},{"analyteId":"chloride","name":"Chloride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16887-00-6","whatItIs":"A naturally occurring salt compound.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.","measured":{"value":112,"low":null,"high":null,"kind":"point","display":"112","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"112"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":116,"low":93,"high":116,"kind":"range","display":"93–116","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"93 - 116"},{"value":119,"low":98.4,"high":119,"kind":"range","display":"98.4–119","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"98.4 - 119"},{"value":112,"low":null,"high":null,"kind":"point","display":"112","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"112"},{"value":104,"low":null,"high":null,"kind":"point","display":"104","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"104"},{"value":123,"low":103,"high":123,"kind":"range","display":"103–123","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"103 - 123"},{"value":110,"low":null,"high":null,"kind":"point","display":"110","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"110"}]},{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16984-48-8","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":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.7"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.28,"low":null,"high":null,"kind":"point","display":"0.28","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.28"},{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.7"},{"value":0.38,"low":0.31,"high":0.38,"kind":"range","display":"0.31–0.38","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.31 - 0.38"},{"value":0.8,"low":0.6,"high":0.8,"kind":"range","display":"0.6–0.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.6 - 0.8"},{"value":0.35,"low":null,"high":null,"kind":"point","display":"0.35","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.35"},{"value":0.28,"low":null,"high":null,"kind":"point","display":"0.28","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.28"}]},{"analyteId":"nitrate","name":"Nitrate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-55-8","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,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2"}]},{"analyteId":"sulfate","name":"Sulfate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14808-79-8","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"No health-based federal limit; high levels can have a laxative effect and a bitter taste.","measured":{"value":237,"low":null,"high":null,"kind":"point","display":"237","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"237"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":744,"low":150,"high":744,"kind":"range","display":"150–744","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"150 - 744"},{"value":224,"low":null,"high":null,"kind":"point","display":"224","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"224"},{"value":253,"low":196,"high":253,"kind":"range","display":"196–253","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"196 - 253"},{"value":165,"low":null,"high":null,"kind":"point","display":"165","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"165"},{"value":243,"low":228,"high":243,"kind":"range","display":"228–243","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"228 - 243"},{"value":237,"low":null,"high":null,"kind":"point","display":"237","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"237"}]},{"analyteId":"aluminum","name":"Aluminum","family":"metal","familyLabel":"Metals","casrn":"7429-90-5","whatItIs":"A common element sometimes used as a treatment coagulant.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels can discolor water.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":110,"low":0,"high":110,"kind":"range","display":"0–110","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 110"},{"value":0.11,"low":0,"high":0.11,"kind":"range","display":"0–0.11","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.11"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"arsenic","name":"Arsenic","family":"metal","familyLabel":"Metals","casrn":"7440-38-2","whatItIs":"A naturally occurring element that also enters water from industry and agriculture.","whyItMatters":"A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.27,"low":2,"high":2.27,"kind":"range","display":"2–2.27","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 2.27"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"}]},{"analyteId":"barium","name":"Barium","family":"metal","familyLabel":"Metals","casrn":"7440-39-3","whatItIs":"A metal from erosion of natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can raise blood pressure.","measured":{"value":0.129,"low":null,"high":null,"kind":"point","display":"0.129","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.129"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.129,"low":null,"high":null,"kind":"point","display":"0.129","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.129"},{"value":0.141,"low":0.113,"high":0.141,"kind":"range","display":"0.113–0.141","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.113 - 0.141"},{"value":0.124,"low":null,"high":null,"kind":"point","display":"0.124","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.124"},{"value":0.124,"low":null,"high":null,"kind":"point","display":"0.124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.124"}]},{"analyteId":"boron","name":"Boron","family":"metal","familyLabel":"Metals","casrn":"7440-42-8","whatItIs":"A naturally occurring element from rock and soil.","whyItMatters":"No enforceable federal limit; the EPA has issued a health advisory level.","measured":{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.14"},"federalStandard":{"type":"NL","value":1,"units":"mg/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.14"},{"value":0.153,"low":0.127,"high":0.153,"kind":"range","display":"0.127–0.153","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.127 - 0.153"},{"value":0.138,"low":null,"high":null,"kind":"point","display":"0.138","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.138"},{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.14"}]},{"analyteId":"calcium","name":"Calcium","family":"metal","familyLabel":"Metals","casrn":"7440-70-2","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":72.7,"low":null,"high":null,"kind":"point","display":"72.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"72.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":78,"low":58,"high":78,"kind":"range","display":"58–78","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"58 - 78"},{"value":68,"low":null,"high":null,"kind":"point","display":"68","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"68"},{"value":72.7,"low":null,"high":null,"kind":"point","display":"72.7","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"72.7"},{"value":64,"low":46,"high":64,"kind":"range","display":"46–64","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"46 - 64"},{"value":79.5,"low":67.2,"high":79.5,"kind":"range","display":"67.2–79.5","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"67.2 - 79.5"},{"value":52,"low":null,"high":null,"kind":"point","display":"52","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"52"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0.081,"low":null,"high":null,"kind":"point","display":"0.081","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.081"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.081,"low":null,"high":null,"kind":"point","display":"0.081","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.081"}]},{"analyteId":"lithium","name":"Lithium","family":"metal","familyLabel":"Metals","casrn":"7439-93-2","whatItIs":"A naturally occurring element found in some groundwater.","whyItMatters":"No enforceable federal limit; on the EPA contaminant candidate list for further study.","measured":{"value":65.7,"low":null,"high":null,"kind":"point","display":"65.7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"65.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":65.7,"low":null,"high":null,"kind":"point","display":"65.7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"65.7"},{"value":40,"low":null,"high":null,"kind":"point","display":"40","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"40"},{"value":47,"low":32,"high":47,"kind":"range","display":"32–47","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"32 - 47"},{"value":67.2,"low":64.2,"high":67.2,"kind":"range","display":"64.2–67.2","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"64.2 - 67.2"}]},{"analyteId":"magnesium","name":"Magnesium","family":"metal","familyLabel":"Metals","casrn":"7439-95-4","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":27.9,"low":null,"high":null,"kind":"point","display":"27.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"27.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"18"},{"value":27.9,"low":null,"high":null,"kind":"point","display":"27.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"27.9"},{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"18"},{"value":26,"low":null,"high":null,"kind":"point","display":"26","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"26"},{"value":29.8,"low":26.2,"high":29.8,"kind":"range","display":"26.2–29.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"26.2 - 29.8"},{"value":29,"low":22,"high":29,"kind":"range","display":"22–29","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 29"}]},{"analyteId":"manganese","name":"Manganese","family":"metal","familyLabel":"Metals","casrn":"7439-96-5","whatItIs":"A naturally occurring metal from soil and rock.","whyItMatters":"No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.","measured":{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.44"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.44"},{"value":47,"low":0,"high":47,"kind":"range","display":"0–47","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 47"}]},{"analyteId":"potassium","name":"Potassium","family":"metal","familyLabel":"Metals","casrn":"7440-09-7","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"Not federally regulated for health.","measured":{"value":5.9,"low":null,"high":null,"kind":"point","display":"5.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"5.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.9,"low":null,"high":null,"kind":"point","display":"4.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4.9"},{"value":5.9,"low":null,"high":null,"kind":"point","display":"5.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"5.9"},{"value":21.2,"low":4.83,"high":21.2,"kind":"range","display":"4.83–21.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.83 - 21.2"},{"value":5.4,"low":4.4,"high":5.4,"kind":"range","display":"4.4–5.4","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.4 - 5.4"}]},{"analyteId":"sodium","name":"Sodium","family":"metal","familyLabel":"Metals","casrn":"7440-23-5","whatItIs":"A naturally occurring salt component.","whyItMatters":"Not federally regulated for health; relevant for people on sodium-restricted diets.","measured":{"value":105,"low":null,"high":null,"kind":"point","display":"105","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"105"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":58,"low":null,"high":null,"kind":"point","display":"58","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"58"},{"value":105,"low":null,"high":null,"kind":"point","display":"105","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"105"},{"value":114,"low":90.3,"high":114,"kind":"range","display":"90.3–114","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"90.3 - 114"},{"value":58,"low":null,"high":null,"kind":"point","display":"58","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"58"},{"value":103,"low":null,"high":null,"kind":"point","display":"103","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"103"},{"value":116,"low":90,"high":116,"kind":"range","display":"90–116","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"90 - 116"}]},{"analyteId":"chlorine_total","name":"Chlorine Total","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":2.04,"low":null,"high":null,"kind":"point","display":"2.04","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.04"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.04,"low":null,"high":null,"kind":"point","display":"2.04","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.04"},{"value":2.9,"low":0.05,"high":2.9,"kind":"range","display":"0.05–2.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.05 - 2.9"}]},{"analyteId":"alkalinity","name":"Alkalinity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of the water's capacity to neutralize acids.","whyItMatters":"Not federally regulated for health; relevant to corrosion control and treatment.","measured":{"value":124,"low":null,"high":null,"kind":"point","display":"124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"124"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":144,"low":115,"high":144,"kind":"range","display":"115–144","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"115 - 144"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"61"},{"value":124,"low":null,"high":null,"kind":"point","display":"124","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"124"},{"value":114,"low":null,"high":null,"kind":"point","display":"114","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"114"},{"value":123,"low":105,"high":123,"kind":"range","display":"105–123","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"105 - 123"},{"value":78,"low":50,"high":78,"kind":"range","display":"50–78","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"50 - 78"}]},{"analyteId":"color","name":"Color","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of visible tint in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":2,"low":1,"high":2,"kind":"range","display":"1–2","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1 - 2"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":8,"low":0,"high":8,"kind":"range","display":"0–8","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 8"}]},{"analyteId":"hardness","name":"Hardness","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of dissolved calcium and magnesium minerals.","whyItMatters":"Not federally regulated for health; affects scaling, soap use, and taste.","measured":{"value":295,"low":null,"high":null,"kind":"point","display":"295","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"295"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":270,"low":null,"high":null,"kind":"point","display":"270","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"270"},{"value":313,"low":281,"high":313,"kind":"range","display":"281–313","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"281 - 313"},{"value":18,"low":16,"high":18,"kind":"range","display":"16–18","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"16 - 18"},{"value":211,"low":193,"high":211,"kind":"range","display":"193–211","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"193 - 211"},{"value":305,"low":235,"high":305,"kind":"range","display":"235–305","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"235 - 305"},{"value":295,"low":null,"high":null,"kind":"point","display":"295","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"295"},{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"17"},{"value":202,"low":null,"high":null,"kind":"point","display":"202","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"202"},{"value":18,"low":14,"high":18,"kind":"range","display":"14–18","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"14 - 18"},{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"16"}]},{"analyteId":"odor","name":"Odor","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of detectable smell in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":2,"low":null,"high":null,"kind":"point","display":"2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"},{"value":4,"low":0,"high":4,"kind":"range","display":"0–4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"}]},{"analyteId":"ph","name":"pH","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how acidic or basic the water is.","whyItMatters":"Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.","measured":{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"8.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":8.4,"low":7.9,"high":8.4,"kind":"range","display":"7.9–8.4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.9 - 8.4"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"8.2"},{"value":8.1,"low":null,"high":null,"kind":"point","display":"8.1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"8.1"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"8.2"},{"value":7.9,"low":null,"high":null,"kind":"point","display":"7.9","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.9"},{"value":8.6,"low":7.4,"high":8.6,"kind":"range","display":"7.4–8.6","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.4 - 8.6"}]},{"analyteId":"specific_conductance","name":"Specific Conductance","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how well water conducts electricity, which tracks dissolved mineral content.","whyItMatters":"Not federally regulated for health; used as a proxy for total dissolved solids.","measured":{"value":1065,"low":null,"high":null,"kind":"point","display":"1065","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1,065"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":979,"low":null,"high":null,"kind":"point","display":"979","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"979"},{"value":1065,"low":null,"high":null,"kind":"point","display":"1065","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1,065"},{"value":744,"low":null,"high":null,"kind":"point","display":"744","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"744"},{"value":744,"low":null,"high":null,"kind":"point","display":"744","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"744"},{"value":1126,"low":1008,"high":1126,"kind":"range","display":"1008–1126","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1,008 - 1,126"},{"value":1070,"low":888,"high":1070,"kind":"range","display":"888–1070","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"888 - 1,070"}]},{"analyteId":"toc","name":"TOC","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total organic carbon — a measure of organic material dissolved in the water.","whyItMatters":"Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.","measured":{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.4"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.4"},{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.9"},{"value":2.5,"low":2,"high":2.5,"kind":"range","display":"2–2.5","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 2.5"}]},{"analyteId":"tds","name":"Total Dissolved Solids","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total dissolved solids — the combined content of all dissolved minerals and salts.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.","measured":{"value":642,"low":null,"high":null,"kind":"point","display":"642","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"642"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":514,"low":465,"high":514,"kind":"range","display":"465–514","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"465 - 514"},{"value":621,"low":null,"high":null,"kind":"point","display":"621","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"621"},{"value":642,"low":null,"high":null,"kind":"point","display":"642","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"642"},{"value":712,"low":588,"high":712,"kind":"range","display":"588–712","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"588 - 712"},{"value":496,"low":null,"high":null,"kind":"point","display":"496","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"496"},{"value":686,"low":556,"high":686,"kind":"range","display":"556–686","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"556 - 686"}]},{"analyteId":"turbidity","name":"Turbidity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of cloudiness from suspended particles in the water.","whyItMatters":"High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.","measured":{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.19"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[{"context":"plant:Metropolitan Water District Diemer Filtration Plant","label":"Metropolitan Water District Diemer Filtration Plant","kind":"plant","units":"NTU","average":null,"range":null,"ratio":0.06},{"context":"plant:IRVINE RANCH WATER DISTRICT BAKER WATER TREATMENT PLANT","label":"Irvine Ranch Water District Baker Water Treatment Plant","kind":"plant","units":"NTU","average":null,"range":null,"ratio":0.043}],"measurements":[{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"0.17"},{"value":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"NTU","statisticType":"reported_level","samplingContext":"plant:Metropolitan Water District Diemer Filtration Plant","rawVerbatim":"0.06"},{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.17"},{"value":0.043,"low":null,"high":null,"kind":"point","display":"0.043","units":"NTU","statisticType":"reported_level","samplingContext":"plant:IRVINE RANCH WATER DISTRICT BAKER WATER TREATMENT PLANT","rawVerbatim":"0.043"},{"value":0.35,"low":0,"high":0.35,"kind":"range","display":"0–0.35","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.35"},{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"average","samplingContext":"system","rawVerbatim":"0.19"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"},{"value":0.3,"low":0,"high":0.3,"kind":"range","display":"0–0.3","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.3"}]},{"analyteId":"gross_alpha","name":"Gross Alpha","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal limit increases cancer risk.","measured":{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"3.8"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":0,"high":5,"kind":"range","display":"0–5","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5"},{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"3.8"},{"value":3.8,"low":null,"high":null,"kind":"point","display":"3.8","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"3.8"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"ND"}]},{"analyteId":"gross_beta","name":"Gross Beta Particle Activity","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross beta particle activity — a combined measure of beta-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal screening level increases cancer risk.","measured":{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4.6"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"4"},{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.6"},{"value":5,"low":0,"high":5,"kind":"range","display":"0–5","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5"}]},{"analyteId":"uranium","name":"Uranium","family":"radionuclide","familyLabel":"Radionuclides","casrn":"7440-61-1","whatItIs":"A naturally occurring radioactive metal from erosion of natural deposits.","whyItMatters":"Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.","measured":{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.2"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.2"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2.2"}]}]}}