{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T00:36:57.414Z"},"system":{"slug":"ca__banning-city-of__CA3310006","name":"Banning, City of — Banning, Ca","state":"CA","year":2022,"url":"https://www.thewatermap.com/water/ca/banning-banning-ca/2022","apiUrl":"https://www.thewatermap.com/api/water/ca/banning-banning-ca/2022","markdownUrl":"https://www.thewatermap.com/water/ca/banning-banning-ca/2022/llms.txt","coordinates":{"latitude":33.9255685,"longitude":-116.875289},"contaminantsMeasured":13,"contaminantsWithFederalLimit":7,"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":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.72"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.44,"low":null,"high":null,"kind":"point","display":"0.44","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.44"},{"value":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.72"},{"value":0.34,"low":null,"high":null,"kind":"point","display":"0.34","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.34—0.69"},{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.70—0.80"}]}]},{"family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","contaminants":[{"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":5.6,"low":null,"high":null,"kind":"point","display":"5.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.6"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0—8.30"},{"value":5.6,"low":null,"high":null,"kind":"point","display":"5.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.6"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.0—7.1"},{"value":3.32,"low":null,"high":null,"kind":"point","display":"3.32","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.32"}]}]},{"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":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.43"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.43"},{"value":0.38,"low":null,"high":null,"kind":"point","display":"0.38","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.38"},{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.2—0.6"},{"value":0.24,"low":null,"high":null,"kind":"point","display":"0.24","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.24—0.64"}]},{"analyteId":"nitrate","name":"Nitrate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-55-8","whatItIs":"A compound from fertilizer runoff, septic systems, and erosion of natural deposits.","whyItMatters":"Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.","measured":{"value":2.37,"low":null,"high":null,"kind":"point","display":"2.37","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.37"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—2.2"},{"value":1.28,"low":null,"high":null,"kind":"point","display":"1.28","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.28"},{"value":2.37,"low":null,"high":null,"kind":"point","display":"2.37","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.37"},{"value":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.54—6.30"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—2.2"},{"value":1.28,"low":null,"high":null,"kind":"point","display":"1.28","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.28"}]}]},{"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":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.31"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.31"},{"value":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND-3.7"}]},{"analyteId":"chromium_hex","name":"Chromium, Hexavalent","family":"metal","familyLabel":"Metals","casrn":"18540-29-9","whatItIs":"Hexavalent chromium ('chromium-6') — the more toxic form of chromium.","whyItMatters":"A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.","measured":{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0-16"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.5,"low":null,"high":null,"kind":"point","display":"7.5","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.5"},{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0-16"}]},{"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":5.74,"low":null,"high":null,"kind":"point","display":"5.74","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.74"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—17"},{"value":5.7,"low":null,"high":null,"kind":"point","display":"5.7","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.7"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0—11.00"},{"value":5.74,"low":null,"high":null,"kind":"point","display":"5.74","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.74"}]},{"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":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.14"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.14"},{"value":0.098,"low":null,"high":null,"kind":"point","display":"0.098","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.098"}]},{"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":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":0.005,"rawVerbatim":"<0.005"},"federalStandard":{"type":"AL","value":0.015,"units":"mg/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"<0.005"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"N/D"}]}]},{"family":"microbial","familyLabel":"Microbial","contaminants":[{"analyteId":"ecoli","name":"Escherichia coli (E. coli)","family":"microbial","familyLabel":"Microbial","casrn":null,"whatItIs":"Escherichia coli — bacteria found in the gut of humans and animals.","whyItMatters":"Its presence in drinking water indicates fecal contamination and a real risk of waterborne illness.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"MCLG","value":0,"units":"%","enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"}]},{"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":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"gross_alpha","name":"Gross Alpha","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal limit increases cancer risk.","measured":{"value":1.26,"low":null,"high":null,"kind":"point","display":"1.26","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.26"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.56,"low":0,"high":2.56,"kind":"range","display":"0–2.56","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-2.56"},{"value":1.12,"low":null,"high":null,"kind":"point","display":"1.12","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.12"},{"value":2.56,"low":0,"high":2.56,"kind":"range","display":"0–2.56","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-2.56"},{"value":1.54,"low":0,"high":1.54,"kind":"range","display":"0–1.54","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.00-1.54"},{"value":1.26,"low":null,"high":null,"kind":"point","display":"1.26","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.26"},{"value":1.12,"low":null,"high":null,"kind":"point","display":"1.12","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.12"}]},{"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":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.45"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.75,"low":0,"high":4.75,"kind":"range","display":"0–4.75","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-4.75"},{"value":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.45"},{"value":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.45"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.00"},{"value":4.75,"low":0,"high":4.75,"kind":"range","display":"0–4.75","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-4.75"},{"value":0,"low":0,"high":0,"kind":"range","display":"0–0","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-0.00"}]}]}],"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":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.72"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.44,"low":null,"high":null,"kind":"point","display":"0.44","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.44"},{"value":0.72,"low":null,"high":null,"kind":"point","display":"0.72","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.72"},{"value":0.34,"low":null,"high":null,"kind":"point","display":"0.34","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.34—0.69"},{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.70—0.80"}]},{"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":5.6,"low":null,"high":null,"kind":"point","display":"5.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.6"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0—8.30"},{"value":5.6,"low":null,"high":null,"kind":"point","display":"5.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.6"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.0—7.1"},{"value":3.32,"low":null,"high":null,"kind":"point","display":"3.32","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.32"}]},{"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":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.43"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.43"},{"value":0.38,"low":null,"high":null,"kind":"point","display":"0.38","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.38"},{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.2—0.6"},{"value":0.24,"low":null,"high":null,"kind":"point","display":"0.24","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.24—0.64"}]},{"analyteId":"nitrate","name":"Nitrate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-55-8","whatItIs":"A compound from fertilizer runoff, septic systems, and erosion of natural deposits.","whyItMatters":"Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.","measured":{"value":2.37,"low":null,"high":null,"kind":"point","display":"2.37","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.37"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—2.2"},{"value":1.28,"low":null,"high":null,"kind":"point","display":"1.28","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.28"},{"value":2.37,"low":null,"high":null,"kind":"point","display":"2.37","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.37"},{"value":0.54,"low":null,"high":null,"kind":"point","display":"0.54","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.54—6.30"},{"value":2.2,"low":null,"high":null,"kind":"point","display":"2.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—2.2"},{"value":1.28,"low":null,"high":null,"kind":"point","display":"1.28","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.28"}]},{"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":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.31"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.31,"low":null,"high":null,"kind":"point","display":"0.31","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.31"},{"value":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND-3.7"}]},{"analyteId":"chromium_hex","name":"Chromium, Hexavalent","family":"metal","familyLabel":"Metals","casrn":"18540-29-9","whatItIs":"Hexavalent chromium ('chromium-6') — the more toxic form of chromium.","whyItMatters":"A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.","measured":{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0-16"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.5,"low":null,"high":null,"kind":"point","display":"7.5","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.5"},{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0-16"}]},{"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":5.74,"low":null,"high":null,"kind":"point","display":"5.74","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.74"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND—17"},{"value":5.7,"low":null,"high":null,"kind":"point","display":"5.7","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.7"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0—11.00"},{"value":5.74,"low":null,"high":null,"kind":"point","display":"5.74","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.74"}]},{"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":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.14"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.14,"low":null,"high":null,"kind":"point","display":"0.14","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.14"},{"value":0.098,"low":null,"high":null,"kind":"point","display":"0.098","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.098"}]},{"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":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":0.005,"rawVerbatim":"<0.005"},"federalStandard":{"type":"AL","value":0.015,"units":"mg/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"<0.005"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"N/D"}]},{"analyteId":"ecoli","name":"Escherichia coli (E. coli)","family":"microbial","familyLabel":"Microbial","casrn":null,"whatItIs":"Escherichia coli — bacteria found in the gut of humans and animals.","whyItMatters":"Its presence in drinking water indicates fecal contamination and a real risk of waterborne illness.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"MCLG","value":0,"units":"%","enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"}]},{"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":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"%","statisticType":"max_single","samplingContext":"system","rawVerbatim":"0"}]},{"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":1.26,"low":null,"high":null,"kind":"point","display":"1.26","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.26"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.56,"low":0,"high":2.56,"kind":"range","display":"0–2.56","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-2.56"},{"value":1.12,"low":null,"high":null,"kind":"point","display":"1.12","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.12"},{"value":2.56,"low":0,"high":2.56,"kind":"range","display":"0–2.56","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-2.56"},{"value":1.54,"low":0,"high":1.54,"kind":"range","display":"0–1.54","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.00-1.54"},{"value":1.26,"low":null,"high":null,"kind":"point","display":"1.26","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.26"},{"value":1.12,"low":null,"high":null,"kind":"point","display":"1.12","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.12"}]},{"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":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.45"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.75,"low":0,"high":4.75,"kind":"range","display":"0–4.75","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-4.75"},{"value":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.45"},{"value":0.45,"low":null,"high":null,"kind":"point","display":"0.45","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.45"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.00"},{"value":4.75,"low":0,"high":4.75,"kind":"range","display":"0–4.75","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-4.75"},{"value":0,"low":0,"high":0,"kind":"range","display":"0–0","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.0-0.00"}]}]}}