{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T01:53:16.320Z"},"system":{"slug":"ca__cal-american-wc-rio-plaza__CA5610010","name":"Cal American Wc - Rio Plaza — Rosemead, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/cal-american-wc-rio-plaza-rosemead-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/cal-american-wc-rio-plaza-rosemead-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/cal-american-wc-rio-plaza-rosemead-ca/2023/llms.txt","coordinates":{"latitude":34.24,"longitude":-119.16},"contaminantsMeasured":21,"contaminantsWithFederalLimit":14,"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":1.19,"low":null,"high":null,"kind":"point","display":"1.19","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.19"},"federalStandard":{"type":"MRDLG","value":4,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.19,"low":null,"high":null,"kind":"point","display":"1.19","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.19"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"min","samplingContext":"plant:Chlorine Residual","rawVerbatim":"0.43"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"0.43 to 1.95"}]}]},{"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":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"4.6"}]},{"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":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":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"18"}]}]},{"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":0.65,"low":null,"high":null,"kind":"point","display":"0.65","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.65"},"federalStandard":{"type":"PHG","value":1,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.67,"low":0.63,"high":0.67,"kind":"range","display":"0.63–0.67","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"0.63 – 0.67"},{"value":0.65,"low":null,"high":null,"kind":"point","display":"0.65","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.65"}]},{"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":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.4"},"federalStandard":{"type":"PHG","value":10,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"2.1 to 2.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.4"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"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":0.18,"low":null,"high":null,"kind":"point","display":"0.18","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.18"},"federalStandard":{"type":"PHG","value":0.3,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.18,"low":null,"high":null,"kind":"point","display":"0.18","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.18"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Premises Above Action Level","rawVerbatim":"0"}]},{"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":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0.2,"units":"ug/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0"},{"value":10,"low":null,"high":null,"kind":"point","display":"10","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of Premises Sampled","rawVerbatim":"10"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:Premises Above Action Level","rawVerbatim":"0"}]},{"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":6.5,"low":null,"high":null,"kind":"point","display":"6.5","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"6.5"},"federalStandard":{"type":"PHG","value":30,"units":"ug/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":null,"high":null,"kind":"point","display":"5","units":"ug/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"5 to 8"},{"value":6.5,"low":null,"high":null,"kind":"point","display":"6.5","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"6.5"}]}]},{"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":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0,"units":null,"enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","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":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0,"units":null,"enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","rawVerbatim":"0"}]}]},{"family":"other","familyLabel":"Other","contaminants":[{"analyteId":"radium_226_228","name":"Radium 226 228","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.17"},"federalStandard":{"type":"PHG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.17"},{"value":0.78,"low":null,"high":null,"kind":"point","display":"0.78","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"ND to 0.78"}]}]},{"family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","contaminants":[{"analyteId":"pfbs","name":"Perfluorobutanesulfonic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-73-5","whatItIs":"Perfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Has no standalone limit but is part of the EPA PFAS Hazard Index that limits PFAS in combination.","measured":{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.8 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.8 ppt"},{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 to 2.5 ppt"}]},{"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":0.5,"low":null,"high":null,"kind":"point","display":"0.5","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.5 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.5,"low":null,"high":null,"kind":"point","display":"0.5","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.5 ppt"},{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 1.1 ppt"}]},{"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":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2 ppt"},"federalStandard":{"type":"MCL","value":10,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.7 to 1.8 ppt"},{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.2 ppt"}]},{"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":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.6 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 1.2 ppt"},{"value":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.6 ppt"}]},{"analyteId":"pfpea","name":"Perfluoropentanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"2706-90-3","whatItIs":"Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":0.4,"low":null,"high":null,"kind":"point","display":"0.4","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.4 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 0.7 ppt"},{"value":0.4,"low":null,"high":null,"kind":"point","display":"0.4","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.4 ppt"}]},{"analyteId":"pfba","name":"PFBA","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-22-4","whatItIs":"Perfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment and the human body.","measured":{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.1 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.1 to 3.0 ppt"},{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.1 ppt"}]},{"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":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.4 ppt"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.4 ppt"},{"value":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 2.9 ppt"}]},{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.5 ppt"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.3,"low":null,"high":null,"kind":"point","display":"2.3","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2.3 to 3.0 ppt"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.5 ppt"}]}]},{"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":5,"low":null,"high":null,"kind":"point","display":"5","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.0"},"federalStandard":{"type":"PHG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":null,"high":null,"kind":"point","display":"5","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.0"},{"value":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"3.4 to 7.9"}]},{"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":5.2,"low":null,"high":null,"kind":"point","display":"5.2","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.2"},"federalStandard":{"type":"PHG","value":0.43,"units":"pCi/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.2,"low":null,"high":null,"kind":"point","display":"5.2","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.2"},{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"4.6 to 6.0"}]}]}],"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":1.19,"low":null,"high":null,"kind":"point","display":"1.19","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.19"},"federalStandard":{"type":"MRDLG","value":4,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.19,"low":null,"high":null,"kind":"point","display":"1.19","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.19"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"min","samplingContext":"plant:Chlorine Residual","rawVerbatim":"0.43"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"0.43 to 1.95"}]},{"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":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"4.6"}]},{"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":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":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":18,"low":null,"high":null,"kind":"point","display":"18","units":"ug/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"18"}]},{"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":0.65,"low":null,"high":null,"kind":"point","display":"0.65","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.65"},"federalStandard":{"type":"PHG","value":1,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.67,"low":0.63,"high":0.67,"kind":"range","display":"0.63–0.67","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"0.63 – 0.67"},{"value":0.65,"low":null,"high":null,"kind":"point","display":"0.65","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.65"}]},{"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":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.4"},"federalStandard":{"type":"PHG","value":10,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"mg/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"2.1 to 2.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.4"}]},{"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":0.18,"low":null,"high":null,"kind":"point","display":"0.18","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.18"},"federalStandard":{"type":"PHG","value":0.3,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.18,"low":null,"high":null,"kind":"point","display":"0.18","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.18"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Premises Above Action Level","rawVerbatim":"0"}]},{"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":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0.2,"units":"ug/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0"},{"value":10,"low":null,"high":null,"kind":"point","display":"10","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of Premises Sampled","rawVerbatim":"10"},{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:Premises Above Action Level","rawVerbatim":"0"}]},{"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":6.5,"low":null,"high":null,"kind":"point","display":"6.5","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"6.5"},"federalStandard":{"type":"PHG","value":30,"units":"ug/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":null,"high":null,"kind":"point","display":"5","units":"ug/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"5 to 8"},{"value":6.5,"low":null,"high":null,"kind":"point","display":"6.5","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"6.5"}]},{"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":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0,"units":null,"enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","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":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","censored":false,"detectionLimit":null,"rawVerbatim":"0"},"federalStandard":{"type":"PHG","value":0,"units":null,"enforceable":false},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Samples","rawVerbatim":"0"}]},{"analyteId":"radium_226_228","name":"Radium 226 228","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.17"},"federalStandard":{"type":"PHG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.17,"low":null,"high":null,"kind":"point","display":"0.17","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.17"},{"value":0.78,"low":null,"high":null,"kind":"point","display":"0.78","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"ND to 0.78"}]},{"analyteId":"pfbs","name":"Perfluorobutanesulfonic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-73-5","whatItIs":"Perfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Has no standalone limit but is part of the EPA PFAS Hazard Index that limits PFAS in combination.","measured":{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.8 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.8,"low":null,"high":null,"kind":"point","display":"1.8","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.8 ppt"},{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.4 to 2.5 ppt"}]},{"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":0.5,"low":null,"high":null,"kind":"point","display":"0.5","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.5 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.5,"low":null,"high":null,"kind":"point","display":"0.5","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.5 ppt"},{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 1.1 ppt"}]},{"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":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2 ppt"},"federalStandard":{"type":"MCL","value":10,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.7 to 1.8 ppt"},{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.2 ppt"}]},{"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":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.6 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 1.2 ppt"},{"value":0.6,"low":null,"high":null,"kind":"point","display":"0.6","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.6 ppt"}]},{"analyteId":"pfpea","name":"Perfluoropentanoic acid","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"2706-90-3","whatItIs":"Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":0.4,"low":null,"high":null,"kind":"point","display":"0.4","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.4 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.7,"low":null,"high":null,"kind":"point","display":"0.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 0.7 ppt"},{"value":0.4,"low":null,"high":null,"kind":"point","display":"0.4","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.4 ppt"}]},{"analyteId":"pfba","name":"PFBA","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"375-22-4","whatItIs":"Perfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment and the human body.","measured":{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.1 ppt"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.1 to 3.0 ppt"},{"value":2.1,"low":null,"high":null,"kind":"point","display":"2.1","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.1 ppt"}]},{"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":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.4 ppt"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.4 ppt"},{"value":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND to 2.9 ppt"}]},{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.5 ppt"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.3,"low":null,"high":null,"kind":"point","display":"2.3","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2.3 to 3.0 ppt"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.5 ppt"}]},{"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,"low":null,"high":null,"kind":"point","display":"5","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.0"},"federalStandard":{"type":"PHG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":5,"low":null,"high":null,"kind":"point","display":"5","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.0"},{"value":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"3.4 to 7.9"}]},{"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":5.2,"low":null,"high":null,"kind":"point","display":"5.2","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"5.2"},"federalStandard":{"type":"PHG","value":0.43,"units":"pCi/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.2,"low":null,"high":null,"kind":"point","display":"5.2","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"5.2"},{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":"pCi/L","statisticType":"range","samplingContext":"plant:Range Detected","rawVerbatim":"4.6 to 6.0"}]}]}}