{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T00:45:27.246Z"},"system":{"slug":"ca__sierra-madre-city-water-dept__CA1910148__2021","name":"Sierra Madre-city, Water Dept. — Sierra Madre, Ca","state":"CA","year":2021,"url":"https://www.thewatermap.com/water/ca/sierra-madre-city-water-dept-sierra-madre-ca/2021","apiUrl":"https://www.thewatermap.com/api/water/ca/sierra-madre-city-water-dept-sierra-madre-ca/2021","markdownUrl":"https://www.thewatermap.com/water/ca/sierra-madre-city-water-dept-sierra-madre-ca/2021/llms.txt","coordinates":{"latitude":34.1616729,"longitude":-118.052845},"contaminantsMeasured":28,"contaminantsWithFederalLimit":8,"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":0.73,"low":null,"high":null,"kind":"point","display":"0.73","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.73"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.73,"low":null,"high":null,"kind":"point","display":"0.73","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.73"},{"value":1.2,"low":0.23,"high":1.2,"kind":"range","display":"0.23–1.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.23 - 1.2"}]}]},{"family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","contaminants":[{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3,"low":2,"high":3,"kind":"range","display":"2–3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 3"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.5"},{"value":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.60"},{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.8"},{"value":2.1,"low":1.4,"high":2.1,"kind":"range","display":"1.4–2.1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 - 2.1"},{"value":1.5,"low":null,"high":null,"kind":"point","display":"1.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.5"},{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.2"},{"value":1.8,"low":1.2,"high":1.8,"kind":"range","display":"1.2–1.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.2 - 1.8"}]},{"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":7,"low":null,"high":null,"kind":"point","display":"7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"7.0"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7,"low":null,"high":null,"kind":"point","display":"7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.0"},{"value":9.8,"low":0,"high":9.8,"kind":"range","display":"0–9.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 9.8"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"bromide","name":"Bromide","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"24959-67-9","whatItIs":"A naturally occurring salt found in source water.","whyItMatters":"Not directly regulated, but a precursor that increases formation of brominated disinfection byproducts.","measured":{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"54"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"54"},{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"54"}]},{"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":36,"low":null,"high":null,"kind":"point","display":"36","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"36"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":39,"low":31,"high":39,"kind":"range","display":"31–39","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"31 - 39"},{"value":36,"low":null,"high":null,"kind":"point","display":"36","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"36"}]},{"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":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.90"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.81,"low":0.61,"high":0.81,"kind":"range","display":"0.61–0.81","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.61 - 0.81"},{"value":1,"low":0.68,"high":1,"kind":"range","display":"0.68–1","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.68 - 1.0"},{"value":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.72"},{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.90"}]},{"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":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.8"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.8,"low":0.91,"high":2.8,"kind":"range","display":"0.91–2.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.91 - 2.8"},{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.8"}]},{"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":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"61"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":64,"low":56,"high":64,"kind":"range","display":"56–64","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"56 - 64"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"61"}]}]},{"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":50,"rawVerbatim":"<50"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":0,"high":0.14,"kind":"range","display":"0–0.14","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.14"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<50"},{"value":140,"low":0,"high":140,"kind":"range","display":"0–140","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 140"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<0.05"}]},{"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":54,"low":null,"high":null,"kind":"point","display":"54","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"54"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"54"},{"value":59,"low":51,"high":59,"kind":"range","display":"51–59","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"51 - 59"}]},{"analyteId":"copper","name":"Copper","family":"metal","familyLabel":"Metals","casrn":"7440-50-8","whatItIs":"A metal that enters water from corroding household plumbing.","whyItMatters":"Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.","measured":{"value":0.46,"low":null,"high":null,"kind":"point","display":"0.46","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.46"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.46,"low":null,"high":null,"kind":"point","display":"0.46","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.46"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Sites Exceeding Action Level","rawVerbatim":"0/32"}]},{"analyteId":"iron","name":"Iron","family":"metal","familyLabel":"Metals","casrn":"7439-89-6","whatItIs":"A naturally occurring metal common in groundwater.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.","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":100,"rawVerbatim":"<100"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<100"},{"value":130,"low":0,"high":130,"kind":"range","display":"0–130","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 130"}]},{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:Sites Exceeding Action Level","rawVerbatim":"0/32"}]},{"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":12,"low":null,"high":null,"kind":"point","display":"12","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"12"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":16,"low":7.8,"high":16,"kind":"range","display":"7.8–16","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.8 - 16"},{"value":12,"low":null,"high":null,"kind":"point","display":"12","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"12"}]},{"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":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.8,"low":1.4,"high":1.8,"kind":"range","display":"1.4–1.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 - 1.8"},{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.6"}]},{"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":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"29"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"29"},{"value":37,"low":22,"high":37,"kind":"range","display":"22–37","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 37"}]}]},{"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":140,"low":null,"high":null,"kind":"point","display":"140","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"140"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":150,"low":130,"high":150,"kind":"range","display":"130–150","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"130 - 150"},{"value":140,"low":null,"high":null,"kind":"point","display":"140","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"140"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":3,"rawVerbatim":"<3"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":25,"low":0,"high":25,"kind":"range","display":"0–25","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 25"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<3"}]},{"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":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"180"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"180"},{"value":200,"low":160,"high":200,"kind":"range","display":"160–200","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"160 - 200"},{"value":11,"low":null,"high":null,"kind":"point","display":"11","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"11"},{"value":11,"low":9.5,"high":11,"kind":"range","display":"9.5–11","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"9.5 - 11"}]},{"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":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1"},"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":"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"}]},{"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":7.6,"low":null,"high":null,"kind":"point","display":"7.6","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"7.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.6,"low":null,"high":null,"kind":"point","display":"7.6","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.6"},{"value":7.7,"low":7.5,"high":7.7,"kind":"range","display":"7.5–7.7","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.5 - 7.7"}]},{"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":490,"low":null,"high":null,"kind":"point","display":"490","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"490"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":490,"low":null,"high":null,"kind":"point","display":"490","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"490"},{"value":510,"low":480,"high":510,"kind":"range","display":"480–510","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"480 - 510"}]},{"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":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.88"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.29,"low":null,"high":null,"kind":"point","display":"0.29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.29"},{"value":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.88"},{"value":0.58,"low":0,"high":0.58,"kind":"range","display":"0–0.58","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.58"},{"value":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.88"}]},{"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":320,"low":null,"high":null,"kind":"point","display":"320","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"320"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":480,"low":240,"high":480,"kind":"range","display":"240–480","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"240 -480"},{"value":320,"low":null,"high":null,"kind":"point","display":"320","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"320"}]},{"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":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.31"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.31"},{"value":0.2,"low":0,"high":0.2,"kind":"range","display":"0–0.2","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.2"},{"value":0.1,"low":null,"high":null,"kind":"point","display":"0.1","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.1"},{"value":3.2,"low":0,"high":3.2,"kind":"range","display":"0–3.2","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.2"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":1,"rawVerbatim":"<1"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.3,"low":0,"high":1.3,"kind":"range","display":"0–1.3","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.3"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<1"}]}]},{"family":"voc_pesticide","familyLabel":"VOCs & pesticides","contaminants":[{"analyteId":"tetrachloroethylene","name":"Tetrachloroethylene","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"127-18-4","whatItIs":"An industrial solvent (PCE) used in dry cleaning and degreasing.","whyItMatters":"A likely human carcinogen; long-term exposure above the federal limit can damage the liver and kidneys.","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":0.5,"rawVerbatim":"<0.5"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.71,"low":0,"high":0.71,"kind":"range","display":"0–0.71","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.71"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<0.5"}]},{"analyteId":"trichloroethylene","name":"Trichloroethylene","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"79-01-6","whatItIs":"An industrial solvent (TCE) used in metal degreasing.","whyItMatters":"A known human carcinogen; long-term exposure above the federal limit can damage the liver.","measured":{"value":0.64,"low":null,"high":null,"kind":"point","display":"0.64","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.64"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.3,"low":0,"high":1.3,"kind":"range","display":"0–1.3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.3"},{"value":0.64,"low":null,"high":null,"kind":"point","display":"0.64","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.64"}]}]}],"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":0.73,"low":null,"high":null,"kind":"point","display":"0.73","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.73"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.73,"low":null,"high":null,"kind":"point","display":"0.73","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.73"},{"value":1.2,"low":0.23,"high":1.2,"kind":"range","display":"0.23–1.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.23 - 1.2"}]},{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3,"low":2,"high":3,"kind":"range","display":"2–3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2 - 3"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"2.5"},{"value":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.60"},{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.8"},{"value":2.1,"low":1.4,"high":2.1,"kind":"range","display":"1.4–2.1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 - 2.1"},{"value":1.5,"low":null,"high":null,"kind":"point","display":"1.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.5"},{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.2"},{"value":1.8,"low":1.2,"high":1.8,"kind":"range","display":"1.2–1.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.2 - 1.8"}]},{"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":7,"low":null,"high":null,"kind":"point","display":"7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"7.0"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7,"low":null,"high":null,"kind":"point","display":"7","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.0"},{"value":9.8,"low":0,"high":9.8,"kind":"range","display":"0–9.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 9.8"}]},{"analyteId":"bromide","name":"Bromide","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"24959-67-9","whatItIs":"A naturally occurring salt found in source water.","whyItMatters":"Not directly regulated, but a precursor that increases formation of brominated disinfection byproducts.","measured":{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"54"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"54"},{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"54"}]},{"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":36,"low":null,"high":null,"kind":"point","display":"36","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"36"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":39,"low":31,"high":39,"kind":"range","display":"31–39","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"31 - 39"},{"value":36,"low":null,"high":null,"kind":"point","display":"36","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"36"}]},{"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":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.90"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.81,"low":0.61,"high":0.81,"kind":"range","display":"0.61–0.81","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.61 - 0.81"},{"value":1,"low":0.68,"high":1,"kind":"range","display":"0.68–1","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.68 - 1.0"},{"value":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.72"},{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.90"}]},{"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":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.8"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.8,"low":0.91,"high":2.8,"kind":"range","display":"0.91–2.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.91 - 2.8"},{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.8"}]},{"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":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"61"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":64,"low":56,"high":64,"kind":"range","display":"56–64","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"56 - 64"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"61"}]},{"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":50,"rawVerbatim":"<50"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":0,"high":0.14,"kind":"range","display":"0–0.14","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.14"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<50"},{"value":140,"low":0,"high":140,"kind":"range","display":"0–140","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 140"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<0.05"}]},{"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":54,"low":null,"high":null,"kind":"point","display":"54","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"54"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":54,"low":null,"high":null,"kind":"point","display":"54","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"54"},{"value":59,"low":51,"high":59,"kind":"range","display":"51–59","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"51 - 59"}]},{"analyteId":"copper","name":"Copper","family":"metal","familyLabel":"Metals","casrn":"7440-50-8","whatItIs":"A metal that enters water from corroding household plumbing.","whyItMatters":"Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.","measured":{"value":0.46,"low":null,"high":null,"kind":"point","display":"0.46","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.46"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.46,"low":null,"high":null,"kind":"point","display":"0.46","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.46"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Sites Exceeding Action Level","rawVerbatim":"0/32"}]},{"analyteId":"iron","name":"Iron","family":"metal","familyLabel":"Metals","casrn":"7439-89-6","whatItIs":"A naturally occurring metal common in groundwater.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.","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":100,"rawVerbatim":"<100"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<100"},{"value":130,"low":0,"high":130,"kind":"range","display":"0–130","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 130"}]},{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:Sites Exceeding Action Level","rawVerbatim":"0/32"}]},{"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":12,"low":null,"high":null,"kind":"point","display":"12","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"12"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":16,"low":7.8,"high":16,"kind":"range","display":"7.8–16","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.8 - 16"},{"value":12,"low":null,"high":null,"kind":"point","display":"12","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"12"}]},{"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":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.8,"low":1.4,"high":1.8,"kind":"range","display":"1.4–1.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 - 1.8"},{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"1.6"}]},{"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":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"29"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"29"},{"value":37,"low":22,"high":37,"kind":"range","display":"22–37","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 37"}]},{"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":140,"low":null,"high":null,"kind":"point","display":"140","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"140"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":150,"low":130,"high":150,"kind":"range","display":"130–150","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"130 - 150"},{"value":140,"low":null,"high":null,"kind":"point","display":"140","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"140"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":3,"rawVerbatim":"<3"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":25,"low":0,"high":25,"kind":"range","display":"0–25","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 25"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<3"}]},{"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":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"180"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"180"},{"value":200,"low":160,"high":200,"kind":"range","display":"160–200","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"160 - 200"},{"value":11,"low":null,"high":null,"kind":"point","display":"11","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"11"},{"value":11,"low":9.5,"high":11,"kind":"range","display":"9.5–11","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"9.5 - 11"}]},{"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":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"1"},"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":"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"}]},{"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":7.6,"low":null,"high":null,"kind":"point","display":"7.6","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"7.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.6,"low":null,"high":null,"kind":"point","display":"7.6","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"7.6"},{"value":7.7,"low":7.5,"high":7.7,"kind":"range","display":"7.5–7.7","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7.5 - 7.7"}]},{"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":490,"low":null,"high":null,"kind":"point","display":"490","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"490"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":490,"low":null,"high":null,"kind":"point","display":"490","units":null,"statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"490"},{"value":510,"low":480,"high":510,"kind":"range","display":"480–510","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"480 - 510"}]},{"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":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.88"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.29,"low":null,"high":null,"kind":"point","display":"0.29","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.29"},{"value":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.88"},{"value":0.58,"low":0,"high":0.58,"kind":"range","display":"0–0.58","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.58"},{"value":0.88,"low":null,"high":null,"kind":"point","display":"0.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.88"}]},{"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":320,"low":null,"high":null,"kind":"point","display":"320","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"320"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":480,"low":240,"high":480,"kind":"range","display":"240–480","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"240 -480"},{"value":320,"low":null,"high":null,"kind":"point","display":"320","units":"mg/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"320"}]},{"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":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.31"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.31"},{"value":0.2,"low":0,"high":0.2,"kind":"range","display":"0–0.2","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.2"},{"value":0.1,"low":null,"high":null,"kind":"point","display":"0.1","units":"NTU","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.1"},{"value":3.2,"low":0,"high":3.2,"kind":"range","display":"0–3.2","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.2"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":true,"detectionLimit":1,"rawVerbatim":"<1"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.3,"low":0,"high":1.3,"kind":"range","display":"0–1.3","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.3"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<1"}]},{"analyteId":"tetrachloroethylene","name":"Tetrachloroethylene","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"127-18-4","whatItIs":"An industrial solvent (PCE) used in dry cleaning and degreasing.","whyItMatters":"A likely human carcinogen; long-term exposure above the federal limit can damage the liver and kidneys.","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":0.5,"rawVerbatim":"<0.5"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.71,"low":0,"high":0.71,"kind":"range","display":"0–0.71","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.71"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"<0.5"}]},{"analyteId":"trichloroethylene","name":"Trichloroethylene","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"79-01-6","whatItIs":"An industrial solvent (TCE) used in metal degreasing.","whyItMatters":"A known human carcinogen; long-term exposure above the federal limit can damage the liver.","measured":{"value":0.64,"low":null,"high":null,"kind":"point","display":"0.64","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","censored":false,"detectionLimit":null,"rawVerbatim":"0.64"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.3,"low":0,"high":1.3,"kind":"range","display":"0–1.3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.3"},{"value":0.64,"low":null,"high":null,"kind":"point","display":"0.64","units":"ug/L","statisticType":"average","samplingContext":"plant:Average Amount","rawVerbatim":"0.64"}]}]}}