{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-25T20:27:05.965Z"},"system":{"slug":"metro__193__new-haven--east-haven","name":"East Haven","state":"CT","year":2024,"url":"https://www.thewatermap.com/water/ct/east-haven/2024","apiUrl":"https://www.thewatermap.com/api/water/ct/east-haven/2024","markdownUrl":"https://www.thewatermap.com/water/ct/east-haven/2024/llms.txt","coordinates":{"latitude":41.2762081,"longitude":-72.8684337},"contaminantsMeasured":28,"contaminantsWithFederalLimit":14,"contaminantsAtOrAboveLimit":2,"contaminantsApproachingLimit":0,"source":{"type":"Consumer Confidence Report (CCR)","description":"Figures are transcribed from the water utility's own annual Consumer Confidence Report, cross-checked by a second model, and approved by a person before publishing."},"families":[{"family":"disinfectant","familyLabel":"Disinfectants","contaminants":[{"analyteId":"chlorine","name":"Chlorine","family":"disinfectant","familyLabel":"Disinfectants","casrn":null,"whatItIs":"A disinfectant added to drinking water to kill bacteria and viruses.","whyItMatters":"Effective and necessary, but high residual levels can cause taste and odor issues; the EPA caps the residual disinfectant level.","measured":{"value":2.7,"low":1.4,"high":2.7,"kind":"range","display":"1.4–2.7","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"1.4 ppm\nRange 0 – 2.7"},"federalStandard":{"type":"MRDL","value":4,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.7,"low":1.4,"high":2.7,"kind":"range","display":"1.4–2.7","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"1.4 ppm\nRange 0 – 2.7"}]}]},{"family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","contaminants":[{"analyteId":"bromodichloromethane","name":"Bromodichloromethane","family":"disinfection_byproduct","familyLabel":"Disinfection byproducts","casrn":"75-27-4","whatItIs":"A trihalomethane disinfection byproduct.","whyItMatters":"Counted within regulated total trihalomethanes; 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long-term exposure is linked to nervous-system, liver, and kidney effects.","measured":{"value":1.6,"low":0,"high":1.6,"kind":"range","display":"0–1.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.9 ppb Range ND – 1.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.6,"low":0,"high":1.6,"kind":"range","display":"0–1.6","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.9 ppb Range ND – 1.6"}]},{"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":40.7,"low":30,"high":40.7,"kind":"range","display":"30–40.7","units":null,"statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"30 ppb Average Range 12.4 – 40.7"},"federalStandard":{"type":"MCL","value":60,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":40.7,"low":30,"high":40.7,"kind":"range","display":"30–40.7","units":null,"statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"30 ppb Average Range 12.4 – 40.7"}]},{"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":63.8,"low":35,"high":63.8,"kind":"range","display":"35–63.8","units":null,"statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"35 ppb Average Range 19.4 – 63.8"},"federalStandard":{"type":"MCL","value":80,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":63.8,"low":35,"high":63.8,"kind":"range","display":"35–63.8","units":null,"statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"35 ppb Average Range 19.4 – 63.8"}]}]},{"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; 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high levels can have a laxative effect and a bitter taste.","measured":{"value":38.6,"low":12.9,"high":38.6,"kind":"range","display":"12.9–38.6","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"12.9 ppm\nRange 6.4 – 38.6"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":38.6,"low":12.9,"high":38.6,"kind":"range","display":"12.9–38.6","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"12.9 ppm\nRange 6.4 – 38.6"}]},{"analyteId":"trichloroacetic_acid","name":"Trichloroacetic acid","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"76-03-9","whatItIs":"A haloacetic acid disinfection byproduct.","whyItMatters":"One of the five haloacetic acids regulated together as HAA5.","measured":{"value":22.4,"low":15.7,"high":22.4,"kind":"range","display":"15.7–22.4","units":"ug/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"15.7 ppb\nRange 4.5 – 22.4"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":22.4,"low":15.7,"high":22.4,"kind":"range","display":"15.7–22.4","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"15.7 ppb\nRange 4.5 – 22.4"},{"value":22.4,"low":15.7,"high":22.4,"kind":"range","display":"15.7–22.4","units":"ug/L","statisticType":"reported_level","samplingContext":"distribution","rawVerbatim":"15.7 ppb\nRange 4.5 – 22.4"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"analyteId":"antimony","name":"Antimony","family":"metal","familyLabel":"Metals","casrn":"7440-36-0","whatItIs":null,"whyItMatters":null,"measured":{"value":11,"low":null,"high":null,"kind":"point","display":"11","units":null,"statisticType":"reported_level","samplingContext":"plant:Volatile Organic Chemicals","censored":false,"detectionLimit":null,"rawVerbatim":"1,1-Dichloroethylene"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":11,"low":null,"high":null,"kind":"point","display":"11","units":null,"statisticType":"reported_level","samplingContext":"plant:Volatile Organic Chemicals","rawVerbatim":"1,1-Dichloroethylene"},{"value":11,"low":null,"high":null,"kind":"point","display":"11","units":null,"statisticType":"reported_level","samplingContext":"plant:Volatile Organic Chemicals","rawVerbatim":"1,1-Dichloroethylene"}]},{"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":0.26,"low":0.077,"high":0.26,"kind":"range","display":"0.077–0.26","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"0.077 ppm\nRange 0.004– 0.260"},"federalStandard":{"type":"MCL","value":2,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.26,"low":0.077,"high":0.26,"kind":"range","display":"0.077–0.26","units":null,"statisticType":"average","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"0.077 ppm\nRange 0.004– 0.260"}]},{"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":0.27,"low":null,"high":null,"kind":"point","display":"0.27","units":null,"statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.27 ppm Range: ND to 0.44 ppm Number of sites above AL = 0 Analyzed 2023 (c)"},"federalStandard":{"type":"AL","value":1.3,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.27,"low":null,"high":null,"kind":"point","display":"0.27","units":null,"statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.27 ppm Range: ND to 0.44 ppm Number of sites above AL = 0 Analyzed 2023 (c)"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0 ppb Range: ND to 6 ppb Number of sites above AL = 0 Analyzed 2023 (c)"},"federalStandard":{"type":"AL","value":15,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0 ppb Range: ND to 6 ppb Number of sites above AL = 0 Analyzed 2023 (c)"}]},{"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":0.21,"low":0,"high":0.21,"kind":"range","display":"0–0.21","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"0.03 ppm Range ND – 0.21"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.21,"low":0,"high":0.21,"kind":"range","display":"0–0.21","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"0.03 ppm Range ND – 0.21"}]},{"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":50.8,"low":23.1,"high":50.8,"kind":"range","display":"23.1–50.8","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"23.1 ppm Range 7.4 – 50.8"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":50.8,"low":23.1,"high":50.8,"kind":"range","display":"23.1–50.8","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"23.1 ppm Range 7.4 – 50.8"}]}]},{"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:Level Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"0%"},"federalStandard":{"type":"MCL","value":0,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max","samplingContext":"plant:Level Detected During 2024","rawVerbatim":"0%"}]}]},{"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":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","censored":false,"detectionLimit":null,"rawVerbatim":"0.25 ppt\nRange ND – 3.5"},"federalStandard":{"type":"AL","value":760,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","rawVerbatim":"0.25 ppt\nRange ND – 3.5"}]},{"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; 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long-term exposure can damage the liver and kidneys.","measured":{"value":0.27,"low":null,"high":null,"kind":"point","display":"0.27","units":null,"statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.27 ppm Range: ND to 0.44 ppm Number of sites above AL = 0 Analyzed 2023 (c)"},"federalStandard":{"type":"AL","value":1.3,"units":null,"enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.27,"low":null,"high":null,"kind":"point","display":"0.27","units":null,"statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.27 ppm Range: ND to 0.44 ppm Number of sites above AL = 0 Analyzed 2023 (c)"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0 ppb Range: ND to 6 ppb Number of sites above AL = 0 Analyzed 2023 (c)"},"federalStandard":{"type":"AL","value":15,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0 ppb Range: ND to 6 ppb Number of sites above AL = 0 Analyzed 2023 (c)"}]},{"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":0.21,"low":0,"high":0.21,"kind":"range","display":"0–0.21","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"0.03 ppm Range ND – 0.21"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.21,"low":0,"high":0.21,"kind":"range","display":"0–0.21","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"0.03 ppm Range ND – 0.21"}]},{"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":50.8,"low":23.1,"high":50.8,"kind":"range","display":"23.1–50.8","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"23.1 ppm Range 7.4 – 50.8"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":50.8,"low":23.1,"high":50.8,"kind":"range","display":"23.1–50.8","units":"mg/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"23.1 ppm Range 7.4 – 50.8"}]},{"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:Level Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"0%"},"federalStandard":{"type":"MCL","value":0,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":null,"statisticType":"max","samplingContext":"plant:Level Detected During 2024","rawVerbatim":"0%"}]},{"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":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","censored":false,"detectionLimit":null,"rawVerbatim":"0.25 ppt\nRange ND – 3.5"},"federalStandard":{"type":"AL","value":760,"units":"ng/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":3.5,"low":0,"high":3.5,"kind":"range","display":"0–3.5","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","rawVerbatim":"0.25 ppt\nRange ND – 3.5"}]},{"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":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","censored":false,"detectionLimit":null,"rawVerbatim":"0.22 ppt\nRange ND – 3.1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":3.1,"low":0,"high":3.1,"kind":"range","display":"0–3.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","rawVerbatim":"0.22 ppt\nRange ND – 3.1"}]},{"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":7.1,"low":0,"high":7.1,"kind":"range","display":"0–7.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","censored":false,"detectionLimit":null,"rawVerbatim":"0.76 ppt\nRange ND – 7.1"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":7.1,"low":0,"high":7.1,"kind":"range","display":"0–7.1","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","rawVerbatim":"0.76 ppt\nRange ND – 7.1"}]},{"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":10.7,"low":0,"high":10.7,"kind":"range","display":"0–10.7","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","censored":false,"detectionLimit":null,"rawVerbatim":"1.4 ppt\nRange ND – 10.7"},"federalStandard":{"type":"MCL","value":4,"units":"ng/L","enforceable":true},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":10.7,"low":0,"high":10.7,"kind":"range","display":"0–10.7","units":"ng/L","statisticType":"range","samplingContext":"plant:Average Concentration and","rawVerbatim":"1.4 ppt\nRange ND – 10.7"}]},{"analyteId":"toc","name":"TOC","family":"physical_aggregate","familyLabel":"Physical & aggregate","casrn":null,"whatItIs":"Total organic carbon — a measure of organic material dissolved in the water.","whyItMatters":"Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.","measured":{"value":2.59,"low":1.92,"high":2.59,"kind":"range","display":"1.92–2.59","units":null,"statisticType":"reported_level","samplingContext":"plant:All Reservoirs","censored":false,"detectionLimit":null,"rawVerbatim":"Average 1.92 Range 1.35 – 2.59"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.59,"low":1.92,"high":2.59,"kind":"range","display":"1.92–2.59","units":null,"statisticType":"reported_level","samplingContext":"plant:All Reservoirs","rawVerbatim":"Average 1.92 Range 1.35 – 2.59"}]},{"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":2.1,"low":0,"high":2.1,"kind":"range","display":"0–2.1","units":null,"statisticType":"average","samplingContext":"plant:Removal Ratio During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"98.0%\n0.093 NTU\nRange ND - 2.1"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.9,"low":0.17,"high":1.9,"kind":"range","display":"0.17–1.9","units":"NTU","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"0.17 NTU\nRange 0.05 – 1.90"},{"value":2.1,"low":0,"high":2.1,"kind":"range","display":"0–2.1","units":null,"statisticType":"average","samplingContext":"plant:Removal Ratio During 2024","rawVerbatim":"98.0%\n0.093 NTU\nRange ND - 2.1"}]},{"analyteId":"radon","name":"Radon","family":"radionuclide","familyLabel":"Radionuclides","casrn":"10043-92-2","whatItIs":"A naturally occurring radioactive gas that can dissolve into groundwater.","whyItMatters":"No enforceable federal limit in drinking water yet; inhalation of released radon raises lung-cancer risk.","measured":{"value":1856,"low":0,"high":1856,"kind":"range","display":"0–1856","units":"pCi/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","censored":false,"detectionLimit":null,"rawVerbatim":"554 pCi/L ND – 1856"},"federalStandard":{"type":"MCL","value":5000,"units":"pCi/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1856,"low":0,"high":1856,"kind":"range","display":"0–1856","units":"pCi/L","statisticType":"reported_level","samplingContext":"plant:Average Level and Range Detected During 2024","rawVerbatim":"554 pCi/L ND – 1856"}]}]}}