{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-06-04T00:37:39.735Z"},"system":{"slug":"ca__winterhaven-mobile-estates__CA1900961","name":"Winterhaven Mobile Estates — Lake Hughes, Ca","state":"CA","year":2023,"url":"https://www.thewatermap.com/water/ca/winterhaven-mobile-estates-lake-hughes-ca/2023","apiUrl":"https://www.thewatermap.com/api/water/ca/winterhaven-mobile-estates-lake-hughes-ca/2023","markdownUrl":"https://www.thewatermap.com/water/ca/winterhaven-mobile-estates-lake-hughes-ca/2023/llms.txt","coordinates":{"latitude":34.6719533,"longitude":-118.4370715},"contaminantsMeasured":10,"contaminantsWithFederalLimit":7,"contaminantsAtOrAboveLimit":0,"contaminantsApproachingLimit":0,"source":{"type":"Consumer Confidence Report (CCR)","description":"Figures are transcribed from the water utility's own annual Consumer Confidence Report, cross-checked by a second model, and approved by a person before publishing."},"families":[{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16984-48-8","whatItIs":"A mineral often added to drinking water to help prevent tooth decay.","whyItMatters":"Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.","measured":{"value":1.7,"low":null,"high":null,"kind":"point","display":"1.7","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.7"},"federalStandard":{"type":"MCL","value":2,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.7,"low":null,"high":null,"kind":"point","display":"1.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.7"}]},{"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":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":{"type":"MCL","value":10,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4.6"}]},{"analyteId":"nitrite","name":"Nitrite","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-65-0","whatItIs":"A compound from fertilizer runoff, sewage, and erosion of natural deposits.","whyItMatters":"Like nitrate, elevated levels can cause 'blue baby syndrome' in infants.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"reported_level","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":10,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"ND"}]}]},{"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":57,"low":null,"high":null,"kind":"point","display":"57","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"57"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":57,"low":null,"high":null,"kind":"point","display":"57","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"57"}]},{"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":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.9"},"federalStandard":{"type":"PHG","value":0.2,"units":null,"enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"2.9"}]},{"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,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.00"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.00"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.00"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.00"},{"value":10,"low":null,"high":null,"kind":"point","display":"10","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of Samples Collected","rawVerbatim":"10"}]}]},{"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":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"reported_level","samplingContext":"plant:Total No. of Detections","censored":false,"detectionLimit":null,"rawVerbatim":"2024 0"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[{"context":"plant:Total No. of Detections","label":"Total No. of Detections","kind":"plant","units":"","average":null,"range":null,"ratio":null},{"context":"plant:No. of Detections","label":"No. of Detections","kind":"plant","units":"","average":null,"range":null,"ratio":null}],"measurements":[{"value":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"reported_level","samplingContext":"plant:Total No. of Detections","rawVerbatim":"2024 0"},{"value":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Detections","rawVerbatim":"2024 0"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"gross_alpha","name":"Gross Alpha","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal limit increases cancer risk.","measured":{"value":4.7,"low":null,"high":null,"kind":"point","display":"4.7","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.7"},"federalStandard":{"type":"MCL","value":15,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.7,"low":null,"high":null,"kind":"point","display":"4.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4.7"}]},{"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":3.6,"low":null,"high":null,"kind":"point","display":"3.6","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.6"},"federalStandard":{"type":"MCL","value":20,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":3.6,"low":null,"high":null,"kind":"point","display":"3.6","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.6"}]}]}],"contaminants":[{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16984-48-8","whatItIs":"A mineral often added to drinking water to help prevent tooth decay.","whyItMatters":"Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.","measured":{"value":1.7,"low":null,"high":null,"kind":"point","display":"1.7","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"1.7"},"federalStandard":{"type":"MCL","value":2,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":1.7,"low":null,"high":null,"kind":"point","display":"1.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"1.7"}]},{"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":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.6"},"federalStandard":{"type":"MCL","value":10,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.6,"low":null,"high":null,"kind":"point","display":"4.6","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4.6"}]},{"analyteId":"nitrite","name":"Nitrite","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"14797-65-0","whatItIs":"A compound from fertilizer runoff, sewage, and erosion of natural deposits.","whyItMatters":"Like nitrate, elevated levels can cause 'blue baby syndrome' in infants.","measured":{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"reported_level","samplingContext":"system","censored":true,"detectionLimit":null,"rawVerbatim":"ND"},"federalStandard":{"type":"MCL","value":10,"units":null,"enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"ND"}]},{"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":57,"low":null,"high":null,"kind":"point","display":"57","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"57"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":57,"low":null,"high":null,"kind":"point","display":"57","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"57"}]},{"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":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"2.9"},"federalStandard":{"type":"PHG","value":0.2,"units":null,"enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":2.9,"low":null,"high":null,"kind":"point","display":"2.9","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"2.9"}]},{"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,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.00"},"federalStandard":{"type":"AL","value":1.3,"units":"mg/L","enforceable":true},"status":{"key":"none","label":"None detected"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"mg/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.00"}]},{"analyteId":"lead","name":"Lead","family":"metal","familyLabel":"Metals","casrn":"7439-92-1","whatItIs":"A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures.","whyItMatters":"There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.","measured":{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"0.00"},"federalStandard":null,"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0,"low":null,"high":null,"kind":"point","display":"0","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"0.00"},{"value":10,"low":null,"high":null,"kind":"point","display":"10","units":"ug/L","statisticType":"reported_level","samplingContext":"plant:No. of Samples Collected","rawVerbatim":"10"}]},{"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":"reported_level","samplingContext":"plant:Total No. of Detections","censored":false,"detectionLimit":null,"rawVerbatim":"2024 0"},"federalStandard":null,"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[{"context":"plant:Total No. of Detections","label":"Total No. of Detections","kind":"plant","units":"","average":null,"range":null,"ratio":null},{"context":"plant:No. of Detections","label":"No. of Detections","kind":"plant","units":"","average":null,"range":null,"ratio":null}],"measurements":[{"value":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"reported_level","samplingContext":"plant:Total No. of Detections","rawVerbatim":"2024 0"},{"value":2024,"low":null,"high":null,"kind":"point","display":"2024","units":null,"statisticType":"max_single","samplingContext":"plant:No. of Detections","rawVerbatim":"2024 0"}]},{"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":4.7,"low":null,"high":null,"kind":"point","display":"4.7","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"4.7"},"federalStandard":{"type":"MCL","value":15,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":4.7,"low":null,"high":null,"kind":"point","display":"4.7","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"4.7"}]},{"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":3.6,"low":null,"high":null,"kind":"point","display":"3.6","units":null,"statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"3.6"},"federalStandard":{"type":"MCL","value":20,"units":null,"enforceable":true},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":3.6,"low":null,"high":null,"kind":"point","display":"3.6","units":null,"statisticType":"reported_level","samplingContext":"system","rawVerbatim":"3.6"}]}]}}