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regulated nationally only within the total-chromium limit, with stricter limits in some states.","measured":{"value":0.048,"low":0.02,"high":0.048,"kind":"range","display":"0.02–0.048","units":"ug/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.02 - 0.048"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":0.048,"low":0.02,"high":0.048,"kind":"range","display":"0.02–0.048","units":"ug/L","statisticType":"range","samplingContext":"system","rawVerbatim":"0.02 - 0.048"},{"value":0.03,"low":null,"high":null,"kind":"point","display":"0.03","units":"ug/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.03"}]},{"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":0.59,"low":null,"high":null,"kind":"point","display":"0.59","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.59"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.59,"low":null,"high":null,"kind":"point","display":"0.59","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.59"}]},{"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":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"1.4"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":1.4,"low":null,"high":null,"kind":"point","display":"1.4","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"1.4"},{"value":42,"low":null,"high":null,"kind":"point","display":"42","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:Number of Samples Collected","rawVerbatim":"42"}]},{"analyteId":"lithium","name":"Lithium","family":"metal","familyLabel":"Metals","casrn":"7439-93-2","whatItIs":"A naturally occurring element found in some groundwater.","whyItMatters":"No enforceable federal limit; on the EPA contaminant candidate list for further study.","measured":{"value":40,"low":25.2,"high":40,"kind":"range","display":"25.2–40","units":"mg/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"25.2 - 40"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":30.6,"low":null,"high":null,"kind":"point","display":"30.6","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"30.6"},{"value":40,"low":25.2,"high":40,"kind":"range","display":"25.2–40","units":"mg/L","statisticType":"range","samplingContext":"system","rawVerbatim":"25.2 - 40"}]},{"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":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"max","samplingContext":"plant:Number of Detections","censored":false,"detectionLimit":null,"rawVerbatim":"(2024)\n0"},"federalStandard":{"type":"MCLG","value":0,"units":null,"enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"max","samplingContext":"plant:Number of Detections","rawVerbatim":"(2024)\n0"}]},{"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":2.8,"low":2.4,"high":2.8,"kind":"range","display":"2.4–2.8","units":"ng/L","statisticType":"range","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.4 - 2.8"},"federalStandard":{"type":"NL","value":5.1,"units":"ng/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":2.8,"low":2.4,"high":2.8,"kind":"range","display":"2.4–2.8","units":"ng/L","statisticType":"range","samplingContext":"system","rawVerbatim":"2.4 - 2.8"},{"value":2.6,"low":null,"high":null,"kind":"point","display":"2.6","units":"ng/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"2.6"}]},{"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; 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