{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-07-14T15:06:13.719Z"},"system":{"slug":"ca__monterey-park-city-water-dept__CA1910092","name":"Monterey Park-city, Water Dept. — Monterey Park, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/monterey-park-city-water-dept-monterey-park-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/monterey-park-city-water-dept-monterey-park-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/monterey-park-city-water-dept-monterey-park-ca/2023/llms.txt","coordinates":{"latitude":34.051522,"longitude":-118.129807},"contaminantsMeasured":33,"contaminantsWithFederalLimit":11,"contaminantsAtOrAboveLimit":2,"contaminantsApproachingLimit":0,"source":{"type":"Consumer Confidence Report (CCR)","description":"Figures are transcribed from the water utility's own annual Consumer Confidence Report, cross-checked by a second model, and approved by a person before publishing."},"families":[{"family":"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":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.1"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.6"},{"value":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.1"}]},{"analyteId":"perchlorate","name":"Perchlorate","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14797-73-0","whatItIs":"A chemical used in rocket fuel and fireworks that can also form during disinfection.","whyItMatters":"Can interfere with thyroid hormone production; has no national enforceable limit but is regulated in some states.","measured":{"value":1.7,"low":0,"high":1.7,"kind":"range","display":"0–1.7","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<1"},{"value":1.7,"low":0,"high":1.7,"kind":"range","display":"0–1.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":1.5,"low":0,"high":1.5,"kind":"range","display":"0–1.5","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 1.5"}]},{"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":1.2,"high":18,"kind":"range","display":"1.2–18","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2 - 18"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":9.9,"low":null,"high":null,"kind":"point","display":"9.9","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"9.9"},{"value":18,"low":1.2,"high":18,"kind":"range","display":"1.2–18","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.2 - 18"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"chloride","name":"Chloride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16887-00-6","whatItIs":"A naturally occurring salt compound.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.","measured":{"value":51,"low":11,"high":51,"kind":"range","display":"11–51","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"11 - 51"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24"},{"value":51,"low":11,"high":51,"kind":"range","display":"11–51","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"11 - 51"},{"value":20,"low":null,"high":null,"kind":"point","display":"20","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"20"},{"value":36,"low":3.8,"high":36,"kind":"range","display":"3.8–36","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"3.8 - 36"}]},{"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":0.94,"low":0.41,"high":0.94,"kind":"range","display":"0.41–0.94","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"0.41 - 0.94"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.63,"low":null,"high":null,"kind":"point","display":"0.63","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.63"},{"value":0.88,"low":0.46,"high":0.88,"kind":"range","display":"0.46–0.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.46 - 0.88"},{"value":0.59,"low":null,"high":null,"kind":"point","display":"0.59","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"0.59"},{"value":0.94,"low":0.41,"high":0.94,"kind":"range","display":"0.41–0.94","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"0.41 - 0.94"}]},{"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":4.9,"low":0,"high":4.9,"kind":"range","display":"0–4.9","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 4.9"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.9"},{"value":4.9,"low":0,"high":4.9,"kind":"range","display":"0–4.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"2.4"},{"value":4.2,"low":0,"high":4.2,"kind":"range","display":"0–4.2","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 4.2"}]},{"analyteId":"sulfate","name":"Sulfate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14808-79-8","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"No health-based federal limit; high levels can have a laxative effect and a bitter taste.","measured":{"value":190,"low":26,"high":190,"kind":"range","display":"26–190","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"26 - 190"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":78,"low":null,"high":null,"kind":"point","display":"78","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"78"},{"value":190,"low":26,"high":190,"kind":"range","display":"26–190","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"26 - 190"},{"value":65,"low":null,"high":null,"kind":"point","display":"65","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"65"},{"value":110,"low":20,"high":110,"kind":"range","display":"20–110","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"20 - 110"}]}]},{"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":3.8,"low":0,"high":3.8,"kind":"range","display":"0–3.8","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.8"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<2"},{"value":3.8,"low":0,"high":3.8,"kind":"range","display":"0–3.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.8"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"analyteId":"boron","name":"Boron","family":"metal","familyLabel":"Metals","casrn":"7440-42-8","whatItIs":"A naturally occurring element from rock and soil.","whyItMatters":"No enforceable federal limit; the EPA has issued a health advisory level.","measured":{"value":0.18,"low":0,"high":0.18,"kind":"range","display":"0–0.18","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.18"},"federalStandard":{"type":"NL","value":1,"units":"mg/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.11,"low":null,"high":null,"kind":"point","display":"0.11","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.11"},{"value":0.18,"low":0,"high":0.18,"kind":"range","display":"0–0.18","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.18"}]},{"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":130,"low":11,"high":130,"kind":"range","display":"11–130","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"11 - 130"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"61"},{"value":130,"low":11,"high":130,"kind":"range","display":"11–130","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"11 - 130"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"61"},{"value":88,"low":31,"high":88,"kind":"range","display":"31–88","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"31 - 88"}]},{"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":4.9,"low":2.2,"high":4.9,"kind":"range","display":"2.2–4.9","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"2.2 - 4.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.6,"low":null,"high":null,"kind":"point","display":"2.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"2.6"},{"value":4.5,"low":0,"high":4.5,"kind":"range","display":"0–4.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4.5"},{"value":3.3,"low":null,"high":null,"kind":"point","display":"3.3","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"3.3"},{"value":4.9,"low":2.2,"high":4.9,"kind":"range","display":"2.2–4.9","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"2.2 - 4.9"}]},{"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":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.3"}]},{"analyteId":"iron","name":"Iron","family":"metal","familyLabel":"Metals","casrn":"7439-89-6","whatItIs":"A naturally occurring metal common in groundwater.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.","measured":{"value":74,"low":0,"high":74,"kind":"range","display":"0–74","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 74"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"8.2"},{"value":74,"low":0,"high":74,"kind":"range","display":"0–74","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 74"}]},{"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":"reported_level","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":"reported_level","samplingContext":"system","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":37,"low":0,"high":37,"kind":"range","display":"0–37","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 37"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"16"},{"value":37,"low":0,"high":37,"kind":"range","display":"0–37","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 37"},{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"17"},{"value":26,"low":3.8,"high":26,"kind":"range","display":"3.8–26","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"3.8 - 26"}]},{"analyteId":"manganese","name":"Manganese","family":"metal","familyLabel":"Metals","casrn":"7439-96-5","whatItIs":"A naturally occurring metal from soil and rock.","whyItMatters":"No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.","measured":{"value":31,"low":0,"high":31,"kind":"range","display":"0–31","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 31"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"13"},{"value":31,"low":0,"high":31,"kind":"range","display":"0–31","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 31"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 0.5"}]},{"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":61,"low":27,"high":61,"kind":"range","display":"27–61","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"27 - 61"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":40,"low":null,"high":null,"kind":"point","display":"40","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"40"},{"value":61,"low":27,"high":61,"kind":"range","display":"27–61","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"27 - 61"},{"value":25,"low":null,"high":null,"kind":"point","display":"25","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"25"},{"value":33,"low":20,"high":33,"kind":"range","display":"20–33","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"20 - 33"}]}]},{"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":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0 (Number of months in violation)"},"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":"range","samplingContext":"system","rawVerbatim":"0 (Number of months in violation)"}]}]},{"family":"other","familyLabel":"Other","contaminants":[{"analyteId":"chlorine_total","name":"Chlorine Total","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":1.1,"low":0.3,"high":1.1,"kind":"range","display":"0.3–1.1","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3 - 1.1"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.75,"low":null,"high":null,"kind":"point","display":"0.75","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.75"},{"value":1.1,"low":0.3,"high":1.1,"kind":"range","display":"0.3–1.1","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.3 - 1.1"}]}]},{"family":"pfas","familyLabel":"PFAS (\"forever chemicals\")","contaminants":[{"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":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<3"},{"value":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":14,"low":0,"high":14,"kind":"range","display":"0–14","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 14"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<5"},{"value":14,"low":0,"high":14,"kind":"range","display":"0–14","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 14"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.2"},{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.2"}]},{"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":5.7,"low":0,"high":5.7,"kind":"range","display":"0–5.7","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 5.7"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<4"},{"value":5.7,"low":0,"high":5.7,"kind":"range","display":"0–5.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":4.3,"low":0,"high":4.3,"kind":"range","display":"0–4.3","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 4.3"},"federalStandard":{"type":"NL","value":6.5,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<4"},{"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"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]}]},{"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":270,"low":100,"high":270,"kind":"range","display":"100–270","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"100 - 270"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"180"},{"value":270,"low":100,"high":270,"kind":"range","display":"100–270","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"100 - 270"},{"value":190,"low":null,"high":null,"kind":"point","display":"190","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"190"},{"value":240,"low":140,"high":240,"kind":"range","display":"140–240","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"140 - 240"}]},{"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":490,"low":28,"high":490,"kind":"range","display":"28–490","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"28 - 490"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":220,"low":null,"high":null,"kind":"point","display":"220","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"220"},{"value":490,"low":28,"high":490,"kind":"range","display":"28–490","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"28 - 490"},{"value":220,"low":null,"high":null,"kind":"point","display":"220","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"220"},{"value":330,"low":93,"high":330,"kind":"range","display":"93–330","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"93 - 330"},{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"13"},{"value":29,"low":1.6,"high":29,"kind":"range","display":"1.6–29","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1.6 - 29"},{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"13"},{"value":19,"low":5.4,"high":19,"kind":"range","display":"5.4–19","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"5.4 - 19"}]},{"analyteId":"odor","name":"Odor","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of detectable smell in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"1"}]},{"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":8.3,"low":7,"high":8.3,"kind":"range","display":"7–8.3","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7 - 8.3"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.7,"low":null,"high":null,"kind":"point","display":"7.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.7"},{"value":8.3,"low":7,"high":8.3,"kind":"range","display":"7–8.3","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7 - 8.3"},{"value":7.8,"low":null,"high":null,"kind":"point","display":"7.8","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"7.8"},{"value":8.2,"low":7.7,"high":8.2,"kind":"range","display":"7.7–8.2","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"7.7 - 8.2"}]},{"analyteId":"specific_conductance","name":"Specific Conductance","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how well water conducts electricity, which tracks dissolved mineral content.","whyItMatters":"Not federally regulated for health; used as a proxy for total dissolved solids.","measured":{"value":1000,"low":340,"high":1000,"kind":"range","display":"340–1000","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"340 - 1000"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":580,"low":null,"high":null,"kind":"point","display":"580","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"580"},{"value":1000,"low":340,"high":1000,"kind":"range","display":"340–1000","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"340 - 1000"},{"value":540,"low":null,"high":null,"kind":"point","display":"540","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"540"},{"value":740,"low":310,"high":740,"kind":"range","display":"310–740","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"310 - 740"}]},{"analyteId":"tds","name":"Total Dissolved Solids","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total dissolved solids — the combined content of all dissolved minerals and salts.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.","measured":{"value":660,"low":210,"high":660,"kind":"range","display":"210–660","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"210 - 660"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":360,"low":null,"high":null,"kind":"point","display":"360","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"360"},{"value":660,"low":210,"high":660,"kind":"range","display":"210–660","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"210 - 660"},{"value":350,"low":null,"high":null,"kind":"point","display":"350","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"350"},{"value":450,"low":190,"high":450,"kind":"range","display":"190–450","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"190 - 450"}]},{"analyteId":"turbidity","name":"Turbidity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of cloudiness from suspended particles in the water.","whyItMatters":"High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.","measured":{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"NTU","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.5"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.29,"low":null,"high":null,"kind":"point","display":"0.29","units":"NTU","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.29"},{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.5"},{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"0.19"},{"value":0.3,"low":0.1,"high":0.3,"kind":"range","display":"0.1–0.3","units":"NTU","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"0.1 - 0.3"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"combined_radium","name":"Combined Radium","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Combined radium-226 and radium-228 — naturally occurring radioactive elements.","whyItMatters":"Long-term exposure above the federal limit increases the risk of bone cancer.","measured":{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.2"},"federalStandard":{"type":"MCL","value":5,"units":"pCi/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":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<1"},{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.2"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":11,"low":0,"high":11,"kind":"range","display":"0–11","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 11"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.9,"low":null,"high":null,"kind":"point","display":"3.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.9"},{"value":11,"low":0,"high":11,"kind":"range","display":"0–11","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 11"},{"value":3.9,"low":null,"high":null,"kind":"point","display":"3.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"3.9"},{"value":7.7,"low":0,"high":7.7,"kind":"range","display":"0–7.7","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 7.7"}]},{"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":15,"low":0,"high":15,"kind":"range","display":"0–15","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 15"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.5,"low":null,"high":null,"kind":"point","display":"5.5","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.5"},{"value":15,"low":0,"high":15,"kind":"range","display":"0–15","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 15"},{"value":6.9,"low":null,"high":null,"kind":"point","display":"6.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"6.9"},{"value":11,"low":1.9,"high":11,"kind":"range","display":"1.9–11","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"1.9 - 11"}]}]}],"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":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.1"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":null,"high":null,"kind":"point","display":"1.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.6"},{"value":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.1"}]},{"analyteId":"perchlorate","name":"Perchlorate","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"14797-73-0","whatItIs":"A chemical used in rocket fuel and fireworks that can also form during disinfection.","whyItMatters":"Can interfere with thyroid hormone production; has no national enforceable limit but is regulated in some states.","measured":{"value":1.7,"low":0,"high":1.7,"kind":"range","display":"0–1.7","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<1"},{"value":1.7,"low":0,"high":1.7,"kind":"range","display":"0–1.7","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":1.5,"low":0,"high":1.5,"kind":"range","display":"0–1.5","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 1.5"}]},{"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":1.2,"high":18,"kind":"range","display":"1.2–18","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.2 - 18"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":9.9,"low":null,"high":null,"kind":"point","display":"9.9","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"9.9"},{"value":18,"low":1.2,"high":18,"kind":"range","display":"1.2–18","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"1.2 - 18"}]},{"analyteId":"chloride","name":"Chloride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16887-00-6","whatItIs":"A naturally occurring salt compound.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.","measured":{"value":51,"low":11,"high":51,"kind":"range","display":"11–51","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"11 - 51"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":24,"low":null,"high":null,"kind":"point","display":"24","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"24"},{"value":51,"low":11,"high":51,"kind":"range","display":"11–51","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"11 - 51"},{"value":20,"low":null,"high":null,"kind":"point","display":"20","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"20"},{"value":36,"low":3.8,"high":36,"kind":"range","display":"3.8–36","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"3.8 - 36"}]},{"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":0.94,"low":0.41,"high":0.94,"kind":"range","display":"0.41–0.94","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"0.41 - 0.94"},"federalStandard":{"type":"MCL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.63,"low":null,"high":null,"kind":"point","display":"0.63","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.63"},{"value":0.88,"low":0.46,"high":0.88,"kind":"range","display":"0.46–0.88","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.46 - 0.88"},{"value":0.59,"low":null,"high":null,"kind":"point","display":"0.59","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"0.59"},{"value":0.94,"low":0.41,"high":0.94,"kind":"range","display":"0.41–0.94","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"0.41 - 0.94"}]},{"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":4.9,"low":0,"high":4.9,"kind":"range","display":"0–4.9","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 4.9"},"federalStandard":{"type":"MCL","value":10,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":null,"high":null,"kind":"point","display":"1.9","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.9"},{"value":4.9,"low":0,"high":4.9,"kind":"range","display":"0–4.9","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4.9"},{"value":2.4,"low":null,"high":null,"kind":"point","display":"2.4","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"2.4"},{"value":4.2,"low":0,"high":4.2,"kind":"range","display":"0–4.2","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 4.2"}]},{"analyteId":"sulfate","name":"Sulfate","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14808-79-8","whatItIs":"A naturally occurring mineral from rock and soil.","whyItMatters":"No health-based federal limit; high levels can have a laxative effect and a bitter taste.","measured":{"value":190,"low":26,"high":190,"kind":"range","display":"26–190","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"26 - 190"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":78,"low":null,"high":null,"kind":"point","display":"78","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"78"},{"value":190,"low":26,"high":190,"kind":"range","display":"26–190","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"26 - 190"},{"value":65,"low":null,"high":null,"kind":"point","display":"65","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"65"},{"value":110,"low":20,"high":110,"kind":"range","display":"20–110","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"20 - 110"}]},{"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":3.8,"low":0,"high":3.8,"kind":"range","display":"0–3.8","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.8"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<2"},{"value":3.8,"low":0,"high":3.8,"kind":"range","display":"0–3.8","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.8"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"analyteId":"boron","name":"Boron","family":"metal","familyLabel":"Metals","casrn":"7440-42-8","whatItIs":"A naturally occurring element from rock and soil.","whyItMatters":"No enforceable federal limit; the EPA has issued a health advisory level.","measured":{"value":0.18,"low":0,"high":0.18,"kind":"range","display":"0–0.18","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.18"},"federalStandard":{"type":"NL","value":1,"units":"mg/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.11,"low":null,"high":null,"kind":"point","display":"0.11","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.11"},{"value":0.18,"low":0,"high":0.18,"kind":"range","display":"0–0.18","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.18"}]},{"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":130,"low":11,"high":130,"kind":"range","display":"11–130","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"11 - 130"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"61"},{"value":130,"low":11,"high":130,"kind":"range","display":"11–130","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"11 - 130"},{"value":61,"low":null,"high":null,"kind":"point","display":"61","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"61"},{"value":88,"low":31,"high":88,"kind":"range","display":"31–88","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"31 - 88"}]},{"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":4.9,"low":2.2,"high":4.9,"kind":"range","display":"2.2–4.9","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"2.2 - 4.9"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.6,"low":null,"high":null,"kind":"point","display":"2.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"2.6"},{"value":4.5,"low":0,"high":4.5,"kind":"range","display":"0–4.5","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 4.5"},{"value":3.3,"low":null,"high":null,"kind":"point","display":"3.3","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"3.3"},{"value":4.9,"low":2.2,"high":4.9,"kind":"range","display":"2.2–4.9","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"2.2 - 4.9"}]},{"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":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"mg/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.3,"low":null,"high":null,"kind":"point","display":"0.3","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.3"}]},{"analyteId":"iron","name":"Iron","family":"metal","familyLabel":"Metals","casrn":"7439-89-6","whatItIs":"A naturally occurring metal common in groundwater.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.","measured":{"value":74,"low":0,"high":74,"kind":"range","display":"0–74","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 74"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND"},{"value":8.2,"low":null,"high":null,"kind":"point","display":"8.2","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"8.2"},{"value":74,"low":0,"high":74,"kind":"range","display":"0–74","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 74"}]},{"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":"reported_level","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":"reported_level","samplingContext":"system","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":37,"low":0,"high":37,"kind":"range","display":"0–37","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 37"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":16,"low":null,"high":null,"kind":"point","display":"16","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"16"},{"value":37,"low":0,"high":37,"kind":"range","display":"0–37","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 37"},{"value":17,"low":null,"high":null,"kind":"point","display":"17","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"17"},{"value":26,"low":3.8,"high":26,"kind":"range","display":"3.8–26","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"3.8 - 26"}]},{"analyteId":"manganese","name":"Manganese","family":"metal","familyLabel":"Metals","casrn":"7439-96-5","whatItIs":"A naturally occurring metal from soil and rock.","whyItMatters":"No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.","measured":{"value":31,"low":0,"high":31,"kind":"range","display":"0–31","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 31"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"13"},{"value":31,"low":0,"high":31,"kind":"range","display":"0–31","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 31"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ug/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"ug/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 0.5"}]},{"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":61,"low":27,"high":61,"kind":"range","display":"27–61","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"27 - 61"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":40,"low":null,"high":null,"kind":"point","display":"40","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"40"},{"value":61,"low":27,"high":61,"kind":"range","display":"27–61","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"27 - 61"},{"value":25,"low":null,"high":null,"kind":"point","display":"25","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"25"},{"value":33,"low":20,"high":33,"kind":"range","display":"20–33","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"20 - 33"}]},{"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":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0 (Number of months in violation)"},"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":"range","samplingContext":"system","rawVerbatim":"0 (Number of months in violation)"}]},{"analyteId":"chlorine_total","name":"Chlorine Total","family":"other","familyLabel":"Other","casrn":null,"whatItIs":null,"whyItMatters":null,"measured":{"value":1.1,"low":0.3,"high":1.1,"kind":"range","display":"0.3–1.1","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.3 - 1.1"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.75,"low":null,"high":null,"kind":"point","display":"0.75","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.75"},{"value":1.1,"low":0.3,"high":1.1,"kind":"range","display":"0.3–1.1","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.3 - 1.1"}]},{"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":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 3.7"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<3"},{"value":3.7,"low":0,"high":3.7,"kind":"range","display":"0–3.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 3.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":14,"low":0,"high":14,"kind":"range","display":"0–14","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 14"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<5"},{"value":14,"low":0,"high":14,"kind":"range","display":"0–14","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 14"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.2"},{"value":7.2,"low":null,"high":null,"kind":"point","display":"7.2","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"7.2"}]},{"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":5.7,"low":0,"high":5.7,"kind":"range","display":"0–5.7","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 5.7"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<4"},{"value":5.7,"low":0,"high":5.7,"kind":"range","display":"0–5.7","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 5.7"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":4.3,"low":0,"high":4.3,"kind":"range","display":"0–4.3","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 4.3"},"federalStandard":{"type":"NL","value":6.5,"units":"ng/L","enforceable":false},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<4"},{"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"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"ng/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":270,"low":100,"high":270,"kind":"range","display":"100–270","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"100 - 270"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":180,"low":null,"high":null,"kind":"point","display":"180","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"180"},{"value":270,"low":100,"high":270,"kind":"range","display":"100–270","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"100 - 270"},{"value":190,"low":null,"high":null,"kind":"point","display":"190","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"190"},{"value":240,"low":140,"high":240,"kind":"range","display":"140–240","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"140 - 240"}]},{"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":490,"low":28,"high":490,"kind":"range","display":"28–490","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"28 - 490"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":220,"low":null,"high":null,"kind":"point","display":"220","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"220"},{"value":490,"low":28,"high":490,"kind":"range","display":"28–490","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"28 - 490"},{"value":220,"low":null,"high":null,"kind":"point","display":"220","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"220"},{"value":330,"low":93,"high":330,"kind":"range","display":"93–330","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"93 - 330"},{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"13"},{"value":29,"low":1.6,"high":29,"kind":"range","display":"1.6–29","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1.6 - 29"},{"value":13,"low":null,"high":null,"kind":"point","display":"13","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"13"},{"value":19,"low":5.4,"high":19,"kind":"range","display":"5.4–19","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"5.4 - 19"}]},{"analyteId":"odor","name":"Odor","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of detectable smell in the water.","whyItMatters":"Regulated only as a secondary (cosmetic) standard.","measured":{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"1"},{"value":1,"low":null,"high":null,"kind":"point","display":"1","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"1"}]},{"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":8.3,"low":7,"high":8.3,"kind":"range","display":"7–8.3","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7 - 8.3"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.7,"low":null,"high":null,"kind":"point","display":"7.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.7"},{"value":8.3,"low":7,"high":8.3,"kind":"range","display":"7–8.3","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"7 - 8.3"},{"value":7.8,"low":null,"high":null,"kind":"point","display":"7.8","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"7.8"},{"value":8.2,"low":7.7,"high":8.2,"kind":"range","display":"7.7–8.2","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"7.7 - 8.2"}]},{"analyteId":"specific_conductance","name":"Specific Conductance","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of how well water conducts electricity, which tracks dissolved mineral content.","whyItMatters":"Not federally regulated for health; used as a proxy for total dissolved solids.","measured":{"value":1000,"low":340,"high":1000,"kind":"range","display":"340–1000","units":null,"statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"340 - 1000"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":580,"low":null,"high":null,"kind":"point","display":"580","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"580"},{"value":1000,"low":340,"high":1000,"kind":"range","display":"340–1000","units":null,"statisticType":"range","samplingContext":"system","rawVerbatim":"340 - 1000"},{"value":540,"low":null,"high":null,"kind":"point","display":"540","units":null,"statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"540"},{"value":740,"low":310,"high":740,"kind":"range","display":"310–740","units":null,"statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"310 - 740"}]},{"analyteId":"tds","name":"Total Dissolved Solids","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total dissolved solids — the combined content of all dissolved minerals and salts.","whyItMatters":"Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.","measured":{"value":660,"low":210,"high":660,"kind":"range","display":"210–660","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"210 - 660"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":360,"low":null,"high":null,"kind":"point","display":"360","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"360"},{"value":660,"low":210,"high":660,"kind":"range","display":"210–660","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"210 - 660"},{"value":350,"low":null,"high":null,"kind":"point","display":"350","units":"mg/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"350"},{"value":450,"low":190,"high":450,"kind":"range","display":"190–450","units":"mg/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"190 - 450"}]},{"analyteId":"turbidity","name":"Turbidity","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"A measure of cloudiness from suspended particles in the water.","whyItMatters":"High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.","measured":{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"NTU","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 0.5"},"federalStandard":{"type":"MCL","value":1,"units":"NTU","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.29,"low":null,"high":null,"kind":"point","display":"0.29","units":"NTU","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.29"},{"value":0.5,"low":0,"high":0.5,"kind":"range","display":"0–0.5","units":"NTU","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 0.5"},{"value":0.19,"low":null,"high":null,"kind":"point","display":"0.19","units":"NTU","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"0.19"},{"value":0.3,"low":0.1,"high":0.3,"kind":"range","display":"0.1–0.3","units":"NTU","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"0.1 - 0.3"}]},{"analyteId":"combined_radium","name":"Combined Radium","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Combined radium-226 and radium-228 — naturally occurring radioactive elements.","whyItMatters":"Long-term exposure above the federal limit increases the risk of bone cancer.","measured":{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 1.2"},"federalStandard":{"type":"MCL","value":5,"units":"pCi/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":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"<1"},{"value":1.2,"low":0,"high":1.2,"kind":"range","display":"0–1.2","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 1.2"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"ND"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND"}]},{"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":11,"low":0,"high":11,"kind":"range","display":"0–11","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 11"},"federalStandard":{"type":"MCL","value":15,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.9,"low":null,"high":null,"kind":"point","display":"3.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.9"},{"value":11,"low":0,"high":11,"kind":"range","display":"0–11","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 11"},{"value":3.9,"low":null,"high":null,"kind":"point","display":"3.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"3.9"},{"value":7.7,"low":0,"high":7.7,"kind":"range","display":"0–7.7","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"ND - 7.7"}]},{"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":15,"low":0,"high":15,"kind":"range","display":"0–15","units":"pCi/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"ND - 15"},"federalStandard":{"type":"MCL","value":20,"units":"pCi/L","enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":5.5,"low":null,"high":null,"kind":"point","display":"5.5","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"5.5"},{"value":15,"low":0,"high":15,"kind":"range","display":"0–15","units":"pCi/L","statisticType":"range","samplingContext":"system","rawVerbatim":"ND - 15"},{"value":6.9,"low":null,"high":null,"kind":"point","display":"6.9","units":"pCi/L","statisticType":"reported_level","samplingContext":"zone:SGVWC","rawVerbatim":"6.9"},{"value":11,"low":1.9,"high":11,"kind":"range","display":"1.9–11","units":"pCi/L","statisticType":"range","samplingContext":"zone:SGVWC","rawVerbatim":"1.9 - 11"}]}]}}