{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T03:38:37.821Z"},"system":{"slug":"ca__cal-water-service-co-marysville__CA5810001","name":"Cal-water Service Co.-marysville — San Jose, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/cal-water-service-co-marysville-san-jose-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/cal-water-service-co-marysville-san-jose-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/cal-water-service-co-marysville-san-jose-ca/2023/llms.txt","coordinates":{"latitude":37.3361663,"longitude":-121.890591},"contaminantsMeasured":29,"contaminantsWithFederalLimit":11,"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":"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":"range","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":"range","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","rawVerbatim":"2.5"},{"value":2.9,"low":0,"high":2.9,"kind":"range","display":"0–2.9","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–2.9"}]}]},{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.19,"low":0,"high":0.19,"kind":"range","display":"0–0.19","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–0.19"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"}]},{"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":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.2,"low":0,"high":3.2,"kind":"range","display":"0–3.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–3.2"},{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.2"}]}]},{"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":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.4"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.4"},{"value":6.5,"low":0,"high":6.5,"kind":"range","display":"0–6.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–6.5"}]},{"analyteId":"barium","name":"Barium","family":"metal","familyLabel":"Metals","casrn":"7440-39-3","whatItIs":"A metal from erosion of natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can raise blood pressure.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0.15,"low":0,"high":0.15,"kind":"range","display":"0–0.15","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–0.15"}]},{"analyteId":"calcium","name":"Calcium","family":"metal","familyLabel":"Metals","casrn":"7440-70-2","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":47,"low":null,"high":null,"kind":"point","display":"47","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"47"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":65,"low":28,"high":65,"kind":"range","display":"28–65","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"28–65"},{"value":47,"low":null,"high":null,"kind":"point","display":"47","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"47"}]},{"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":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"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":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.1"},{"value":1.5,"low":0.77,"high":1.5,"kind":"range","display":"0.77–1.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.77–1.5"}]},{"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":0.16,"low":null,"high":null,"kind":"point","display":"0.16","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.16"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.16,"low":null,"high":null,"kind":"point","display":"0.16","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.16"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"ND"}]},{"analyteId":"magnesium","name":"Magnesium","family":"metal","familyLabel":"Metals","casrn":"7439-95-4","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":31,"low":null,"high":null,"kind":"point","display":"31","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"31"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":31,"low":null,"high":null,"kind":"point","display":"31","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"31"},{"value":46,"low":21,"high":46,"kind":"range","display":"21–46","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"21–46"}]},{"analyteId":"potassium","name":"Potassium","family":"metal","familyLabel":"Metals","casrn":"7440-09-7","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"Not federally regulated for health.","measured":{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.3,"low":0,"high":2.3,"kind":"range","display":"0–2.3","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–2.3"},{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"1.1"}]},{"analyteId":"sodium","name":"Sodium","family":"metal","familyLabel":"Metals","casrn":"7440-23-5","whatItIs":"A naturally occurring salt component.","whyItMatters":"Not federally regulated for health; relevant for people on sodium-restricted diets.","measured":{"value":19,"low":null,"high":null,"kind":"point","display":"19","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"19"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":34,"low":7.2,"high":34,"kind":"range","display":"7.2–34","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"7.2–34"},{"value":19,"low":null,"high":null,"kind":"point","display":"19","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"19"}]},{"analyteId":"vanadium","name":"Vanadium","family":"metal","familyLabel":"Metals","casrn":"7440-62-2","whatItIs":null,"whyItMatters":null,"measured":{"value":8.9,"low":null,"high":null,"kind":"point","display":"8.9","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.9"},"federalStandard":{"type":"NL","value":50,"units":"ug/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":8.9,"low":null,"high":null,"kind":"point","display":"8.9","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"8.9"},{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–16"}]}]},{"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","samplingContext":"plant:Monthly","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":null,"statisticType":"max","samplingContext":"plant:Monthly","rawVerbatim":"0"}]}]},{"family":"other","familyLabel":"Other","contaminants":[{"analyteId":"chlorine_free","name":"Chlorine Free","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":0.68,"low":null,"high":null,"kind":"point","display":"0.68","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.68"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.68,"low":null,"high":null,"kind":"point","display":"0.68","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.68"},{"value":1.8,"low":0.21,"high":1.8,"kind":"range","display":"0.21–1.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.21–1.8"}]}]},{"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":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.20"},"federalStandard":{"type":"NL","value":500,"units":"ng/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":0,"high":4.6,"kind":"range","display":"0–4.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–4.6"},{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.20"}]},{"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":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.06"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.06"},{"value":2.1,"low":0,"high":2.1,"kind":"range","display":"0–2.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–2.1"}]},{"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":0.07,"low":null,"high":null,"kind":"point","display":"0.07","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.07"},"federalStandard":{"type":"NL","value":3,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.4,"low":0,"high":2.4,"kind":"range","display":"0–2.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–2.4"},{"value":0.07,"low":null,"high":null,"kind":"point","display":"0.07","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.07"}]},{"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":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.20"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.20"},{"value":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–3.5"}]},{"analyteId":"pfpes","name":"Perfluoropentanesulfonic acid (PFPeS)","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"2706-91-4","whatItIs":"Perfluoropentanesulfonic acid, a PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.43"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.4,"low":0,"high":4.4,"kind":"range","display":"0–4.4","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–4.4"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.43"}]},{"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":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"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":"average","samplingContext":"plant:Groundwater","rawVerbatim":"1.1"},{"value":6.7,"low":0,"high":6.7,"kind":"range","display":"0–6.7","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–6.7"}]},{"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":0.89,"low":null,"high":null,"kind":"point","display":"0.89","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.89"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.5,"low":0,"high":5.5,"kind":"range","display":"0–5.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–5.5"},{"value":0.89,"low":null,"high":null,"kind":"point","display":"0.89","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.89"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":4.3,"low":0,"high":4.3,"kind":"range","display":"0–4.3","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–4.3"}]}]},{"family":"physical_aggregate","familyLabel":"Physical & aggregate","contaminants":[{"analyteId":"alkalinity","name":"Alkalinity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of the water's capacity to neutralize acids.","whyItMatters":"Not federally regulated for health; relevant to corrosion control and treatment.","measured":{"value":211,"low":null,"high":null,"kind":"point","display":"211","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"211"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":211,"low":null,"high":null,"kind":"point","display":"211","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"211"},{"value":310,"low":160,"high":310,"kind":"range","display":"160–310","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"160–310"}]},{"analyteId":"hardness","name":"Hardness","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of dissolved calcium and magnesium minerals.","whyItMatters":"Not federally regulated for health; affects scaling, soap use, and taste.","measured":{"value":247,"low":null,"high":null,"kind":"point","display":"247","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"247"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":247,"low":null,"high":null,"kind":"point","display":"247","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"247"},{"value":352,"low":160,"high":352,"kind":"range","display":"160–352","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"160–352"}]},{"analyteId":"ph","name":"pH","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how acidic or basic the water is.","whyItMatters":"Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.","measured":{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":null,"statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"7.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":null,"statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"7.2"},{"value":7.6,"low":7,"high":7.6,"kind":"range","display":"7–7.6","units":null,"statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"7.0–7.6"}]}]},{"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":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.1"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7.6,"low":0,"high":7.6,"kind":"range","display":"0–7.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–7.6"},{"value":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.1"}]},{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":6.6,"low":0,"high":6.6,"kind":"range","display":"0–6.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–6.6"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.5"}]}]}],"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":"range","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":"range","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"ug/L","statisticType":"average","samplingContext":"plant:Annual Average","rawVerbatim":"2.5"},{"value":2.9,"low":0,"high":2.9,"kind":"range","display":"0–2.9","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–2.9"}]},{"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,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.19,"low":0,"high":0.19,"kind":"range","display":"0–0.19","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–0.19"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"}]},{"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":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.2,"low":0,"high":3.2,"kind":"range","display":"0–3.2","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–3.2"},{"value":1.2,"low":null,"high":null,"kind":"point","display":"1.2","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.2"}]},{"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":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.4"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.4,"low":null,"high":null,"kind":"point","display":"3.4","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.4"},{"value":6.5,"low":0,"high":6.5,"kind":"range","display":"0–6.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–6.5"}]},{"analyteId":"barium","name":"Barium","family":"metal","familyLabel":"Metals","casrn":"7440-39-3","whatItIs":"A metal from erosion of natural deposits and industrial discharge.","whyItMatters":"Long-term exposure above the federal limit can raise blood pressure.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":2,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":0.15,"low":0,"high":0.15,"kind":"range","display":"0–0.15","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–0.15"}]},{"analyteId":"calcium","name":"Calcium","family":"metal","familyLabel":"Metals","casrn":"7440-70-2","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":47,"low":null,"high":null,"kind":"point","display":"47","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"47"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":65,"low":28,"high":65,"kind":"range","display":"28–65","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"28–65"},{"value":47,"low":null,"high":null,"kind":"point","display":"47","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"47"}]},{"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":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"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":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"1.1"},{"value":1.5,"low":0.77,"high":1.5,"kind":"range","display":"0.77–1.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.77–1.5"}]},{"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":0.16,"low":null,"high":null,"kind":"point","display":"0.16","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.16"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.16,"low":null,"high":null,"kind":"point","display":"0.16","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.16"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":null,"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"ND"}]},{"analyteId":"magnesium","name":"Magnesium","family":"metal","familyLabel":"Metals","casrn":"7439-95-4","whatItIs":"A naturally occurring mineral that contributes to water hardness.","whyItMatters":"Not federally regulated for health; affects scaling and taste.","measured":{"value":31,"low":null,"high":null,"kind":"point","display":"31","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"31"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":31,"low":null,"high":null,"kind":"point","display":"31","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"31"},{"value":46,"low":21,"high":46,"kind":"range","display":"21–46","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"21–46"}]},{"analyteId":"potassium","name":"Potassium","family":"metal","familyLabel":"Metals","casrn":"7440-09-7","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"Not federally regulated for health.","measured":{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.3,"low":0,"high":2.3,"kind":"range","display":"0–2.3","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–2.3"},{"value":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"1.1"}]},{"analyteId":"sodium","name":"Sodium","family":"metal","familyLabel":"Metals","casrn":"7440-23-5","whatItIs":"A naturally occurring salt component.","whyItMatters":"Not federally regulated for health; relevant for people on sodium-restricted diets.","measured":{"value":19,"low":null,"high":null,"kind":"point","display":"19","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"19"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":34,"low":7.2,"high":34,"kind":"range","display":"7.2–34","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"7.2–34"},{"value":19,"low":null,"high":null,"kind":"point","display":"19","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"19"}]},{"analyteId":"vanadium","name":"Vanadium","family":"metal","familyLabel":"Metals","casrn":"7440-62-2","whatItIs":null,"whyItMatters":null,"measured":{"value":8.9,"low":null,"high":null,"kind":"point","display":"8.9","units":"ug/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"8.9"},"federalStandard":{"type":"NL","value":50,"units":"ug/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":8.9,"low":null,"high":null,"kind":"point","display":"8.9","units":"ug/L","statisticType":"average","samplingContext":"system","rawVerbatim":"8.9"},{"value":16,"low":0,"high":16,"kind":"range","display":"0–16","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–16"}]},{"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","samplingContext":"plant:Monthly","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":null,"statisticType":"max","samplingContext":"plant:Monthly","rawVerbatim":"0"}]},{"analyteId":"chlorine_free","name":"Chlorine Free","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":0.68,"low":null,"high":null,"kind":"point","display":"0.68","units":"mg/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.68"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.68,"low":null,"high":null,"kind":"point","display":"0.68","units":"mg/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.68"},{"value":1.8,"low":0.21,"high":1.8,"kind":"range","display":"0.21–1.8","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.21–1.8"}]},{"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":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.20"},"federalStandard":{"type":"NL","value":500,"units":"ng/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":0,"high":4.6,"kind":"range","display":"0–4.6","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–4.6"},{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.20"}]},{"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":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.06"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.06,"low":null,"high":null,"kind":"point","display":"0.06","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.06"},{"value":2.1,"low":0,"high":2.1,"kind":"range","display":"0–2.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–2.1"}]},{"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":0.07,"low":null,"high":null,"kind":"point","display":"0.07","units":"ng/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.07"},"federalStandard":{"type":"NL","value":3,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.4,"low":0,"high":2.4,"kind":"range","display":"0–2.4","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–2.4"},{"value":0.07,"low":null,"high":null,"kind":"point","display":"0.07","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"0.07"}]},{"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":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.20"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.2,"low":null,"high":null,"kind":"point","display":"0.2","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.20"},{"value":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–3.5"}]},{"analyteId":"pfpes","name":"Perfluoropentanesulfonic acid (PFPeS)","family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","casrn":"2706-91-4","whatItIs":"Perfluoropentanesulfonic acid, a PFAS 'forever chemical.'","whyItMatters":"Monitored under EPA rules; persistent in the environment.","measured":{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.43"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.4,"low":0,"high":4.4,"kind":"range","display":"0–4.4","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–4.4"},{"value":0.43,"low":null,"high":null,"kind":"point","display":"0.43","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.43"}]},{"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":1.1,"low":null,"high":null,"kind":"point","display":"1.1","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"1.1"},"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":"average","samplingContext":"plant:Groundwater","rawVerbatim":"1.1"},{"value":6.7,"low":0,"high":6.7,"kind":"range","display":"0–6.7","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–6.7"}]},{"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":0.89,"low":null,"high":null,"kind":"point","display":"0.89","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"0.89"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.5,"low":0,"high":5.5,"kind":"range","display":"0–5.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"ND–5.5"},{"value":0.89,"low":null,"high":null,"kind":"point","display":"0.89","units":"ng/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"0.89"}]},{"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":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"average","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"average","samplingContext":"system","rawVerbatim":"ND"},{"value":4.3,"low":0,"high":4.3,"kind":"range","display":"0–4.3","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–4.3"}]},{"analyteId":"alkalinity","name":"Alkalinity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of the water's capacity to neutralize acids.","whyItMatters":"Not federally regulated for health; relevant to corrosion control and treatment.","measured":{"value":211,"low":null,"high":null,"kind":"point","display":"211","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"211"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":211,"low":null,"high":null,"kind":"point","display":"211","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"211"},{"value":310,"low":160,"high":310,"kind":"range","display":"160–310","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"160–310"}]},{"analyteId":"hardness","name":"Hardness","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of dissolved calcium and magnesium minerals.","whyItMatters":"Not federally regulated for health; affects scaling, soap use, and taste.","measured":{"value":247,"low":null,"high":null,"kind":"point","display":"247","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"247"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":247,"low":null,"high":null,"kind":"point","display":"247","units":"mg/L","statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"247"},{"value":352,"low":160,"high":352,"kind":"range","display":"160–352","units":"mg/L","statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"160–352"}]},{"analyteId":"ph","name":"pH","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how acidic or basic the water is.","whyItMatters":"Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.","measured":{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":null,"statisticType":"average","samplingContext":"plant:Groundwater","censored":false,"detectionLimit":null,"rawVerbatim":"7.2"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":null,"statisticType":"average","samplingContext":"plant:Groundwater","rawVerbatim":"7.2"},{"value":7.6,"low":7,"high":7.6,"kind":"range","display":"7–7.6","units":null,"statisticType":"range","samplingContext":"plant:Groundwater","rawVerbatim":"7.0–7.6"}]},{"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":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.1"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":7.6,"low":0,"high":7.6,"kind":"range","display":"0–7.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–7.6"},{"value":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"3.1"}]},{"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":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"pCi/L","statisticType":"average","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.5"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":6.6,"low":0,"high":6.6,"kind":"range","display":"0–6.6","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND–6.6"},{"value":2.5,"low":null,"high":null,"kind":"point","display":"2.5","units":"pCi/L","statisticType":"average","samplingContext":"system","rawVerbatim":"2.5"}]}]}}