{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T01:52:40.858Z"},"system":{"slug":"ca__monrovia-city-water-dept__CA1910090","name":"Monrovia-city, Water Dept. — Monrovia, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/monrovia-city-water-dept-monrovia-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/monrovia-city-water-dept-monrovia-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/monrovia-city-water-dept-monrovia-ca/2023/llms.txt","coordinates":{"latitude":34.1483499,"longitude":-118.0014517},"contaminantsMeasured":22,"contaminantsWithFederalLimit":9,"contaminantsAtOrAboveLimit":2,"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":0.98,"low":null,"high":null,"kind":"point","display":"0.98","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.98"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.39,"low":0.8,"high":1.39,"kind":"range","display":"0.8–1.39","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.80 – 1.39"},{"value":0.98,"low":null,"high":null,"kind":"point","display":"0.98","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.98"}]}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","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":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"}]},{"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":13.75,"low":null,"high":null,"kind":"point","display":"13.75","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"13.75"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":17,"low":0,"high":17,"kind":"range","display":"0–17","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND – 17.0"},{"value":13.75,"low":null,"high":null,"kind":"point","display":"13.75","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"13.75"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"chloride","name":"Chloride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16887-00-6","whatItIs":"A naturally occurring salt compound.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.","measured":{"value":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"29"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":35,"low":24,"high":35,"kind":"range","display":"24–35","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"24 - 35"},{"value":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"29"}]},{"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":0.44,"low":null,"high":null,"kind":"point","display":"0.44","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.44"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"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":"average","samplingContext":"system","rawVerbatim":"0.44"},{"value":0.47,"low":0.42,"high":0.47,"kind":"range","display":"0.42–0.47","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.42 – 0.47"}]},{"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":1.29,"low":null,"high":null,"kind":"point","display":"1.29","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.29*"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":0.84,"high":1.9,"kind":"range","display":"0.84–1.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.84 – 1.9"},{"value":1.29,"low":null,"high":null,"kind":"point","display":"1.29","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.29*"}]},{"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":24.2,"low":null,"high":null,"kind":"point","display":"24.2","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":27,"low":22,"high":27,"kind":"range","display":"22–27","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 27"},{"value":24.2,"low":null,"high":null,"kind":"point","display":"24.2","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"24.2"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"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":2.8,"low":null,"high":null,"kind":"point","display":"2.8","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.8"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.8,"low":null,"high":null,"kind":"point","display":"2.8","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.8"},{"value":4,"low":1.7,"high":4,"kind":"range","display":"1.7–4","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.7 – 4.0"}]},{"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":0.074,"low":null,"high":null,"kind":"point","display":"0.074","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.074"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.074,"low":null,"high":null,"kind":"point","display":"0.074","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.074"}]},{"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":0.001,"low":null,"high":null,"kind":"point","display":"0.001","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.001"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.001,"low":null,"high":null,"kind":"point","display":"0.001","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.001"},{"value":35,"low":null,"high":null,"kind":"point","display":"35","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of samples collected","rawVerbatim":"35"}]}]},{"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":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"}]},{"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%"}]}]},{"family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","contaminants":[{"analyteId":"pfhpa","name":"Perfluoroheptanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-85-9","whatItIs":"Perfluoroheptanoic acid, a PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":2.82,"low":null,"high":null,"kind":"point","display":"2.82","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.82"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.82,"low":null,"high":null,"kind":"point","display":"2.82","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.82"},{"value":4.4,"low":0,"high":4.4,"kind":"range","display":"0–4.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0 – 4.4"}]},{"analyteId":"pfhxs","name":"Perfluorohexanesulfonic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"355-46-4","whatItIs":"Perfluorohexanesulfonic acid, a PFAS 'forever chemical.'","whyItMatters":"Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.","measured":{"value":3.44,"low":null,"high":null,"kind":"point","display":"3.44","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.44"},"federalStandard":{"type":"NL","value":3,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":6.6,"low":0,"high":6.6,"kind":"range","display":"0–6.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0 – 6.6"},{"value":3.44,"low":null,"high":null,"kind":"point","display":"3.44","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.44"}]},{"analyteId":"pfhxa","name":"Perfluorohexanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"307-24-4","whatItIs":"Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent and widely detected.","measured":{"value":22,"low":null,"high":null,"kind":"point","display":"22","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"22"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":38,"low":7.7,"high":38,"kind":"range","display":"7.7–38","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.7 – 38"},{"value":22,"low":null,"high":null,"kind":"point","display":"22","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"22"}]},{"analyteId":"pfoa","name":"PFOA","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"335-67-1","whatItIs":"Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products.","whyItMatters":"Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.","measured":{"value":6.37,"low":null,"high":null,"kind":"point","display":"6.37","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"6.37"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":8.6,"low":4.3,"high":8.6,"kind":"range","display":"4.3–8.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.3 – 8.6"},{"value":6.37,"low":null,"high":null,"kind":"point","display":"6.37","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"6.37"}]},{"analyteId":"pfos","name":"PFOS","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"1763-23-1","whatItIs":"Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings.","whyItMatters":"Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.","measured":{"value":8.95,"low":null,"high":null,"kind":"point","display":"8.95","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.95"},"federalStandard":{"type":"NL","value":6.5,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":14,"low":5,"high":14,"kind":"range","display":"5–14","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"5 – 14"},{"value":8.95,"low":null,"high":null,"kind":"point","display":"8.95","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"8.95"}]}]},{"family":"physical_aggregate","familyLabel":"Physical & aggregate","contaminants":[{"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":"system","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":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"}]},{"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":408,"low":null,"high":null,"kind":"point","display":"408","units":"uS/cm","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"408"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":440,"low":380,"high":440,"kind":"range","display":"380–440","units":"uS/cm","statisticType":"range","samplingContext":"system","rawVerbatim":"380 - 440"},{"value":408,"low":null,"high":null,"kind":"point","display":"408","units":"uS/cm","statisticType":"average","samplingContext":"system","rawVerbatim":"408"}]},{"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":232,"low":null,"high":null,"kind":"point","display":"232","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"232"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":232,"low":null,"high":null,"kind":"point","display":"232","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"232"},{"value":240,"low":210,"high":240,"kind":"range","display":"210–240","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"210 – 240"}]}]},{"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":1.3,"low":null,"high":null,"kind":"point","display":"1.3","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.3"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.89,"low":0,"high":3.89,"kind":"range","display":"0–3.89","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND – 3.89"},{"value":1.3,"low":null,"high":null,"kind":"point","display":"1.3","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.3"}]}]},{"family":"voc_pesticide","familyLabel":"VOCs & pesticides","contaminants":[{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"}]}]}],"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":0.98,"low":null,"high":null,"kind":"point","display":"0.98","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.98"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.39,"low":0.8,"high":1.39,"kind":"range","display":"0.8–1.39","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.80 – 1.39"},{"value":0.98,"low":null,"high":null,"kind":"point","display":"0.98","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.98"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","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":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"}]},{"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":13.75,"low":null,"high":null,"kind":"point","display":"13.75","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"13.75"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":17,"low":0,"high":17,"kind":"range","display":"0–17","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND – 17.0"},{"value":13.75,"low":null,"high":null,"kind":"point","display":"13.75","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"13.75"}]},{"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":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"29"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":35,"low":24,"high":35,"kind":"range","display":"24–35","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"24 - 35"},{"value":29,"low":null,"high":null,"kind":"point","display":"29","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"29"}]},{"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":0.44,"low":null,"high":null,"kind":"point","display":"0.44","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.44"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"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":"average","samplingContext":"system","rawVerbatim":"0.44"},{"value":0.47,"low":0.42,"high":0.47,"kind":"range","display":"0.42–0.47","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.42 – 0.47"}]},{"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":1.29,"low":null,"high":null,"kind":"point","display":"1.29","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.29*"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":0.84,"high":1.9,"kind":"range","display":"0.84–1.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.84 – 1.9"},{"value":1.29,"low":null,"high":null,"kind":"point","display":"1.29","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.29*"}]},{"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":24.2,"low":null,"high":null,"kind":"point","display":"24.2","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"24.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":27,"low":22,"high":27,"kind":"range","display":"22–27","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"22 - 27"},{"value":24.2,"low":null,"high":null,"kind":"point","display":"24.2","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"24.2"}]},{"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":2.8,"low":null,"high":null,"kind":"point","display":"2.8","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.8"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.8,"low":null,"high":null,"kind":"point","display":"2.8","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.8"},{"value":4,"low":1.7,"high":4,"kind":"range","display":"1.7–4","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.7 – 4.0"}]},{"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":0.074,"low":null,"high":null,"kind":"point","display":"0.074","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.074"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.074,"low":null,"high":null,"kind":"point","display":"0.074","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.074"}]},{"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":0.001,"low":null,"high":null,"kind":"point","display":"0.001","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.001"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.001,"low":null,"high":null,"kind":"point","display":"0.001","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.001"},{"value":35,"low":null,"high":null,"kind":"point","display":"35","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of samples collected","rawVerbatim":"35"}]},{"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":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"}]},{"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%"}]},{"analyteId":"pfhpa","name":"Perfluoroheptanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-85-9","whatItIs":"Perfluoroheptanoic acid, a PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":2.82,"low":null,"high":null,"kind":"point","display":"2.82","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.82"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.82,"low":null,"high":null,"kind":"point","display":"2.82","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.82"},{"value":4.4,"low":0,"high":4.4,"kind":"range","display":"0–4.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0 – 4.4"}]},{"analyteId":"pfhxs","name":"Perfluorohexanesulfonic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"355-46-4","whatItIs":"Perfluorohexanesulfonic acid, a PFAS 'forever chemical.'","whyItMatters":"Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.","measured":{"value":3.44,"low":null,"high":null,"kind":"point","display":"3.44","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.44"},"federalStandard":{"type":"NL","value":3,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":6.6,"low":0,"high":6.6,"kind":"range","display":"0–6.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0 – 6.6"},{"value":3.44,"low":null,"high":null,"kind":"point","display":"3.44","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.44"}]},{"analyteId":"pfhxa","name":"Perfluorohexanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"307-24-4","whatItIs":"Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent and widely detected.","measured":{"value":22,"low":null,"high":null,"kind":"point","display":"22","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"22"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":38,"low":7.7,"high":38,"kind":"range","display":"7.7–38","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.7 – 38"},{"value":22,"low":null,"high":null,"kind":"point","display":"22","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"22"}]},{"analyteId":"pfoa","name":"PFOA","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"335-67-1","whatItIs":"Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products.","whyItMatters":"Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.","measured":{"value":6.37,"low":null,"high":null,"kind":"point","display":"6.37","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"6.37"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":8.6,"low":4.3,"high":8.6,"kind":"range","display":"4.3–8.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"4.3 – 8.6"},{"value":6.37,"low":null,"high":null,"kind":"point","display":"6.37","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"6.37"}]},{"analyteId":"pfos","name":"PFOS","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"1763-23-1","whatItIs":"Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings.","whyItMatters":"Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.","measured":{"value":8.95,"low":null,"high":null,"kind":"point","display":"8.95","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.95"},"federalStandard":{"type":"NL","value":6.5,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":14,"low":5,"high":14,"kind":"range","display":"5–14","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"5 – 14"},{"value":8.95,"low":null,"high":null,"kind":"point","display":"8.95","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"8.95"}]},{"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":"system","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":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"average","samplingContext":"system","rawVerbatim":"1"}]},{"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":408,"low":null,"high":null,"kind":"point","display":"408","units":"uS/cm","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"408"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":440,"low":380,"high":440,"kind":"range","display":"380–440","units":"uS/cm","statisticType":"range","samplingContext":"system","rawVerbatim":"380 - 440"},{"value":408,"low":null,"high":null,"kind":"point","display":"408","units":"uS/cm","statisticType":"average","samplingContext":"system","rawVerbatim":"408"}]},{"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":232,"low":null,"high":null,"kind":"point","display":"232","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"232"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":232,"low":null,"high":null,"kind":"point","display":"232","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"232"},{"value":240,"low":210,"high":240,"kind":"range","display":"210–240","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"210 – 240"}]},{"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":1.3,"low":null,"high":null,"kind":"point","display":"1.3","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.3"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.89,"low":0,"high":3.89,"kind":"range","display":"0–3.89","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND – 3.89"},{"value":1.3,"low":null,"high":null,"kind":"point","display":"1.3","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.3"}]},{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":5,"units":"ug/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"}]}]}}