{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-25T20:08:14.853Z"},"system":{"slug":"metro__038__mesa","name":"Mesa","state":"AZ","year":2024,"url":"https://www.thewatermap.com/water/az/mesa/2024","apiUrl":"https://www.thewatermap.com/api/water/az/mesa/2024","markdownUrl":"https://www.thewatermap.com/water/az/mesa/2024/llms.txt","coordinates":{"latitude":33.4151005,"longitude":-111.831455},"contaminantsMeasured":22,"contaminantsWithFederalLimit":19,"contaminantsAtOrAboveLimit":0,"contaminantsApproachingLimit":1,"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":0.71,"low":null,"high":null,"kind":"point","display":"0.71","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.71"},"federalStandard":{"type":"MRDL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.71,"low":null,"high":null,"kind":"point","display":"0.71","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"0.71"},{"value":1.82,"low":0.01,"high":1.82,"kind":"range","display":"0.01–1.82","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.01-1.82"}]}]},{"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":5.8,"low":null,"high":null,"kind":"point","display":"5.8","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.8"},"federalStandard":{"type":"MCL","value":10,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5.8,"low":null,"high":null,"kind":"point","display":"5.8","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"5.8"},{"value":9.9,"low":1.8,"high":9.9,"kind":"range","display":"1.8–9.9","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.8-9.9"}]},{"analyteId":"chlorite","name":"Chlorite","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14998-27-7","whatItIs":null,"whyItMatters":null,"measured":{"value":0.36,"low":null,"high":null,"kind":"point","display":"0.36","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.36"},"federalStandard":{"type":"MCL","value":1,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.36,"low":null,"high":null,"kind":"point","display":"0.36","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.36"},{"value":0.48,"low":0.16,"high":0.48,"kind":"range","display":"0.16–0.48","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.16-0.48"}]},{"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":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"18"},"federalStandard":{"type":"MCL","value":60,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":21,"low":0,"high":21,"kind":"range","display":"0–21","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND-21"},{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"18"}]},{"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":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"51"},"federalStandard":{"type":"MCL","value":80,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":68.01,"low":3.22,"high":68.01,"kind":"range","display":"3.22–68.01","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"3.22-68.01"},{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"51"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"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":1.11,"low":0,"high":1.11,"kind":"range","display":"0–1.11","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.11"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.11,"low":0,"high":1.11,"kind":"range","display":"0–1.11","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.11"},{"value":1.11,"low":null,"high":null,"kind":"point","display":"1.11","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.11"}]},{"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":7.88,"low":null,"high":null,"kind":"point","display":"7.88","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7.88"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7.88,"low":null,"high":null,"kind":"point","display":"7.88","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.88"},{"value":7.88,"low":0.22,"high":7.88,"kind":"range","display":"0.22–7.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.22 - 7.88"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"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":8.37,"low":null,"high":null,"kind":"point","display":"8.37","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.37"},"federalStandard":{"type":"MCL","value":10,"units":"ug/L","enforceable":true},"status":{"key":"approaching","label":"Approaching the limit"},"breakdowns":[],"measurements":[{"value":8.37,"low":null,"high":null,"kind":"point","display":"8.37","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"8.37"},{"value":8.37,"low":0.9,"high":8.37,"kind":"range","display":"0.9–8.37","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.9 - 8.37"}]},{"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":0.114,"low":null,"high":null,"kind":"point","display":"0.114","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.114"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.114,"low":null,"high":null,"kind":"point","display":"0.114","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.114"},{"value":0.114,"low":0.003,"high":0.114,"kind":"range","display":"0.003–0.114","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.003 - 0.114"}]},{"analyteId":"chromium_total","name":"Chromium, Total","family":"metal","familyLabel":"Metals","casrn":"7440-47-3","whatItIs":"Total chromium — the sum of all chromium forms, from natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can cause allergic dermatitis; includes hexavalent chromium.","measured":{"value":24.7,"low":null,"high":null,"kind":"point","display":"24.7","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24.7"},"federalStandard":{"type":"MCL","value":100,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":24.7,"low":null,"high":null,"kind":"point","display":"24.7","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24.7"},{"value":24.7,"low":0,"high":24.7,"kind":"range","display":"0–24.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 24.7"}]},{"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":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.17"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.34,"low":0.01,"high":0.34,"kind":"range","display":"0.01–0.34","units":"mg/L","statisticType":"range","samplingContext":"at_the_tap","rawVerbatim":"0.01 - 0.34"},{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.17"}]},{"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":5.01,"low":null,"high":null,"kind":"point","display":"5.01","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"5.01"},"federalStandard":{"type":"AL","value":15,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":15.32,"low":0.13,"high":15.32,"kind":"range","display":"0.13–15.32","units":"ug/L","statisticType":"range","samplingContext":"at_the_tap","rawVerbatim":"0.13 - 15.32"},{"value":5.01,"low":null,"high":null,"kind":"point","display":"5.01","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"5.01"}]},{"analyteId":"selenium","name":"Selenium","family":"metal","familyLabel":"Metals","casrn":"7782-49-2","whatItIs":"A trace element from natural deposits and industrial discharge.","whyItMatters":"Essential in tiny amounts, but long-term exposure above the federal limit can cause hair and fingernail loss and circulatory problems.","measured":{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND -3.0"},"federalStandard":{"type":"MCL","value":50,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND -3.0"},{"value":3,"low":null,"high":null,"kind":"point","display":"3","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3"}]},{"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":210,"low":null,"high":null,"kind":"point","display":"210","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"210"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":210,"low":null,"high":null,"kind":"point","display":"210","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"210"},{"value":210,"low":51,"high":210,"kind":"range","display":"51–210","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"51-210"}]}]},{"family":"microbial","familyLabel":"Microbial","contaminants":[{"analyteId":"total_coliform","name":"Total Coliform","family":"microbial","familyLabel":"Microbial","casrn":null,"whatItIs":"A group of bacteria used as an indicator of overall water-system sanitation.","whyItMatters":"Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.","measured":{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0.9 (September)"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4"}]}]},{"family":"physical_aggregate","familyLabel":"Physical & aggregate","contaminants":[{"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":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":null,"statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":null,"statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"1.6"},{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":null,"statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"1.44 (1st Quarter)"},{"value":1.54,"low":0.88,"high":1.54,"kind":"range","display":"0.88–1.54","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"0.88-1.54"},{"value":2.6,"low":0.7,"high":2.6,"kind":"range","display":"0.7–2.6","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"0.7-2.6"}]},{"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":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"NTU","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3"},"federalStandard":{"type":"TT","value":1,"units":"NTU","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"NTU","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0.3"},{"value":0.3,"low":0.04,"high":0.3,"kind":"range","display":"0.04–0.3","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"0.04-0.3"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"combined_radium","name":"Combined Radium","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Combined radium-226 and radium-228 — naturally occurring radioactive elements.","whyItMatters":"Long-term exposure above the federal limit increases the risk of bone cancer.","measured":{"value":0.9,"low":0,"high":0.9,"kind":"range","display":"0–0.9","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.9"},"federalStandard":{"type":"MCL","value":5,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.9,"low":0,"high":0.9,"kind":"range","display":"0–0.9","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.9"},{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.9"}]},{"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":5.4,"low":0,"high":5.4,"kind":"range","display":"0–5.4","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 5.4"},"federalStandard":{"type":"MCL","value":15,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5.4,"low":0,"high":5.4,"kind":"range","display":"0–5.4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5.4"},{"value":5.4,"low":null,"high":null,"kind":"point","display":"5.4","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.4"}]}]},{"family":"voc_pesticide","familyLabel":"VOCs & pesticides","contaminants":[{"analyteId":"dbcp","name":"DBCP","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"96-12-8","whatItIs":"1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide.","whyItMatters":"A probable human carcinogen; long-term exposure above the federal limit can cause reproductive harm.","measured":{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"ng/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24"},"federalStandard":{"type":"MCL","value":200,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24"},{"value":24,"low":0,"high":24,"kind":"range","display":"0–24","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 24"}]},{"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":0.62,"low":0,"high":0.62,"kind":"range","display":"0–0.62","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.62"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.62,"low":0,"high":0.62,"kind":"range","display":"0–0.62","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.62"},{"value":0.62,"low":null,"high":null,"kind":"point","display":"0.62","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.62"}]},{"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":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.54"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.54"},{"value":0.54,"low":0,"high":0.54,"kind":"range","display":"0–0.54","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.54"}]}]}],"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":0.71,"low":null,"high":null,"kind":"point","display":"0.71","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.71"},"federalStandard":{"type":"MRDL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.71,"low":null,"high":null,"kind":"point","display":"0.71","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"0.71"},{"value":1.82,"low":0.01,"high":1.82,"kind":"range","display":"0.01–1.82","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.01-1.82"}]},{"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":5.8,"low":null,"high":null,"kind":"point","display":"5.8","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.8"},"federalStandard":{"type":"MCL","value":10,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5.8,"low":null,"high":null,"kind":"point","display":"5.8","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"5.8"},{"value":9.9,"low":1.8,"high":9.9,"kind":"range","display":"1.8–9.9","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.8-9.9"}]},{"analyteId":"chlorite","name":"Chlorite","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14998-27-7","whatItIs":null,"whyItMatters":null,"measured":{"value":0.36,"low":null,"high":null,"kind":"point","display":"0.36","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.36"},"federalStandard":{"type":"MCL","value":1,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.36,"low":null,"high":null,"kind":"point","display":"0.36","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.36"},{"value":0.48,"low":0.16,"high":0.48,"kind":"range","display":"0.16–0.48","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.16-0.48"}]},{"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":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"18"},"federalStandard":{"type":"MCL","value":60,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":21,"low":0,"high":21,"kind":"range","display":"0–21","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND-21"},{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"18"}]},{"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":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"51"},"federalStandard":{"type":"MCL","value":80,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":68.01,"low":3.22,"high":68.01,"kind":"range","display":"3.22–68.01","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"3.22-68.01"},{"value":51,"low":null,"high":null,"kind":"point","display":"51","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"51"}]},{"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":1.11,"low":0,"high":1.11,"kind":"range","display":"0–1.11","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.11"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.11,"low":0,"high":1.11,"kind":"range","display":"0–1.11","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.11"},{"value":1.11,"low":null,"high":null,"kind":"point","display":"1.11","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.11"}]},{"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":7.88,"low":null,"high":null,"kind":"point","display":"7.88","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7.88"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7.88,"low":null,"high":null,"kind":"point","display":"7.88","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.88"},{"value":7.88,"low":0.22,"high":7.88,"kind":"range","display":"0.22–7.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.22 - 7.88"}]},{"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":8.37,"low":null,"high":null,"kind":"point","display":"8.37","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.37"},"federalStandard":{"type":"MCL","value":10,"units":"ug/L","enforceable":true},"status":{"key":"approaching","label":"Approaching the limit"},"breakdowns":[],"measurements":[{"value":8.37,"low":null,"high":null,"kind":"point","display":"8.37","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"8.37"},{"value":8.37,"low":0.9,"high":8.37,"kind":"range","display":"0.9–8.37","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.9 - 8.37"}]},{"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":0.114,"low":null,"high":null,"kind":"point","display":"0.114","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.114"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.114,"low":null,"high":null,"kind":"point","display":"0.114","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.114"},{"value":0.114,"low":0.003,"high":0.114,"kind":"range","display":"0.003–0.114","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.003 - 0.114"}]},{"analyteId":"chromium_total","name":"Chromium, Total","family":"metal","familyLabel":"Metals","casrn":"7440-47-3","whatItIs":"Total chromium — the sum of all chromium forms, from natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can cause allergic dermatitis; includes hexavalent chromium.","measured":{"value":24.7,"low":null,"high":null,"kind":"point","display":"24.7","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24.7"},"federalStandard":{"type":"MCL","value":100,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":24.7,"low":null,"high":null,"kind":"point","display":"24.7","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24.7"},{"value":24.7,"low":0,"high":24.7,"kind":"range","display":"0–24.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 24.7"}]},{"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":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.17"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.34,"low":0.01,"high":0.34,"kind":"range","display":"0.01–0.34","units":"mg/L","statisticType":"range","samplingContext":"at_the_tap","rawVerbatim":"0.01 - 0.34"},{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.17"}]},{"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":5.01,"low":null,"high":null,"kind":"point","display":"5.01","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"5.01"},"federalStandard":{"type":"AL","value":15,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":15.32,"low":0.13,"high":15.32,"kind":"range","display":"0.13–15.32","units":"ug/L","statisticType":"range","samplingContext":"at_the_tap","rawVerbatim":"0.13 - 15.32"},{"value":5.01,"low":null,"high":null,"kind":"point","display":"5.01","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"5.01"}]},{"analyteId":"selenium","name":"Selenium","family":"metal","familyLabel":"Metals","casrn":"7782-49-2","whatItIs":"A trace element from natural deposits and industrial discharge.","whyItMatters":"Essential in tiny amounts, but long-term exposure above the federal limit can cause hair and fingernail loss and circulatory problems.","measured":{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND -3.0"},"federalStandard":{"type":"MCL","value":50,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3,"low":0,"high":3,"kind":"range","display":"0–3","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND -3.0"},{"value":3,"low":null,"high":null,"kind":"point","display":"3","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3"}]},{"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":210,"low":null,"high":null,"kind":"point","display":"210","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"210"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":210,"low":null,"high":null,"kind":"point","display":"210","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"210"},{"value":210,"low":51,"high":210,"kind":"range","display":"51–210","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"51-210"}]},{"analyteId":"total_coliform","name":"Total Coliform","family":"microbial","familyLabel":"Microbial","casrn":null,"whatItIs":"A group of bacteria used as an indicator of overall water-system sanitation.","whyItMatters":"Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.","measured":{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0.9 (September)"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4"}]},{"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":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":null,"statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":null,"statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"1.6"},{"value":1.44,"low":null,"high":null,"kind":"point","display":"1.44","units":null,"statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"1.44 (1st Quarter)"},{"value":1.54,"low":0.88,"high":1.54,"kind":"range","display":"0.88–1.54","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"0.88-1.54"},{"value":2.6,"low":0.7,"high":2.6,"kind":"range","display":"0.7–2.6","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"0.7-2.6"}]},{"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":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"NTU","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3"},"federalStandard":{"type":"TT","value":1,"units":"NTU","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"NTU","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0.3"},{"value":0.3,"low":0.04,"high":0.3,"kind":"range","display":"0.04–0.3","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"0.04-0.3"}]},{"analyteId":"combined_radium","name":"Combined Radium","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Combined radium-226 and radium-228 — naturally occurring radioactive elements.","whyItMatters":"Long-term exposure above the federal limit increases the risk of bone cancer.","measured":{"value":0.9,"low":0,"high":0.9,"kind":"range","display":"0–0.9","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.9"},"federalStandard":{"type":"MCL","value":5,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.9,"low":0,"high":0.9,"kind":"range","display":"0–0.9","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.9"},{"value":0.9,"low":null,"high":null,"kind":"point","display":"0.9","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.9"}]},{"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":5.4,"low":0,"high":5.4,"kind":"range","display":"0–5.4","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 5.4"},"federalStandard":{"type":"MCL","value":15,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5.4,"low":0,"high":5.4,"kind":"range","display":"0–5.4","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5.4"},{"value":5.4,"low":null,"high":null,"kind":"point","display":"5.4","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.4"}]},{"analyteId":"dbcp","name":"DBCP","family":"voc_pesticide","familyLabel":"VOCs & pesticides","casrn":"96-12-8","whatItIs":"1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide.","whyItMatters":"A probable human carcinogen; long-term exposure above the federal limit can cause reproductive harm.","measured":{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"ng/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24"},"federalStandard":{"type":"MCL","value":200,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24"},{"value":24,"low":0,"high":24,"kind":"range","display":"0–24","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 24"}]},{"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":0.62,"low":0,"high":0.62,"kind":"range","display":"0–0.62","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.62"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.62,"low":0,"high":0.62,"kind":"range","display":"0–0.62","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.62"},{"value":0.62,"low":null,"high":null,"kind":"point","display":"0.62","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.62"}]},{"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":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.54"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.54"},{"value":0.54,"low":0,"high":0.54,"kind":"range","display":"0–0.54","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.54"}]}]}}