{"dataset":{"name":"U.S. Drinking Water Quality — Contaminant Measurements","license":"https://creativecommons.org/licenses/by/4.0/","homepage":"https://www.thewatermap.com"},"meta":{"generatedAt":"2026-05-25T20:03:43.438Z"},"system":{"slug":"md__wicomico__0220216-Cedarhurst-MHP","name":"Cedarhurst Mhp","state":"MD","year":2024,"url":"https://www.thewatermap.com/water/md/cedarhurst-mhp/2024","apiUrl":"https://www.thewatermap.com/api/water/md/cedarhurst-mhp/2024","markdownUrl":"https://www.thewatermap.com/water/md/cedarhurst-mhp/2024/llms.txt","coordinates":{"latitude":38.3607,"longitude":-75.5994},"contaminantsMeasured":5,"contaminantsWithFederalLimit":5,"contaminantsAtOrAboveLimit":1,"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":4,"low":null,"high":null,"kind":"point","display":"4","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"MRDL = 4"},"federalStandard":{"type":"MRDL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0.81,"low":null,"high":null,"kind":"point","display":"0.81","units":"mg/L","statisticType":"max","samplingContext":"system","rawVerbatim":"0.81"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"MRDL = 4"},{"value":0.33,"low":null,"high":null,"kind":"point","display":"0.33","units":"mg/L","statisticType":"min","samplingContext":"system","rawVerbatim":"0.33"}]}]},{"family":"inorganic","familyLabel":"Inorganic chemicals","contaminants":[{"analyteId":"fluoride","name":"Fluoride","family":"inorganic","familyLabel":"Inorganic chemicals","casrn":"16984-48-8","whatItIs":"A mineral often added to drinking water to help prevent tooth decay.","whyItMatters":"Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.","measured":{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"max","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.91"},"federalStandard":{"type":"MCLG","value":4,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"max","samplingContext":"system","rawVerbatim":"0.91"},{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"min","samplingContext":"system","rawVerbatim":"0.91"},{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.91"}]}]},{"family":"metal","familyLabel":"Metals","contaminants":[{"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"},"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"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"range","samplingContext":"plant:of Tap Sampling","rawVerbatim":"<0.05"}]},{"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":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"3.1"},"federalStandard":{"type":"AL","value":15,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":6.1,"low":0,"high":6.1,"kind":"range","display":"0–6.1","units":"ug/L","statisticType":"range","samplingContext":"plant:of Tap Sampling","rawVerbatim":"<1.0-6.1"},{"value":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"3.1"}]}]},{"family":"radionuclide","familyLabel":"Radionuclides","contaminants":[{"analyteId":"gross_beta","name":"Gross Beta Particle Activity","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross beta particle activity — a combined measure of beta-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal screening level increases cancer risk.","measured":{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7.4"},"federalStandard":{"type":"MCLG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.4"},{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"min","samplingContext":"system","rawVerbatim":"7.4"},{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"max","samplingContext":"system","rawVerbatim":"7.4"}]}]}],"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":4,"low":null,"high":null,"kind":"point","display":"4","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"MRDL = 4"},"federalStandard":{"type":"MRDL","value":4,"units":"mg/L","enforceable":true},"status":{"key":"over","label":"At or above the limit"},"breakdowns":[],"measurements":[{"value":0.81,"low":null,"high":null,"kind":"point","display":"0.81","units":"mg/L","statisticType":"max","samplingContext":"system","rawVerbatim":"0.81"},{"value":4,"low":null,"high":null,"kind":"point","display":"4","units":"mg/L","statisticType":"running_annual_avg","samplingContext":"system","rawVerbatim":"MRDL = 4"},{"value":0.33,"low":null,"high":null,"kind":"point","display":"0.33","units":"mg/L","statisticType":"min","samplingContext":"system","rawVerbatim":"0.33"}]},{"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":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"max","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"0.91"},"federalStandard":{"type":"MCLG","value":4,"units":"mg/L","enforceable":false},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"max","samplingContext":"system","rawVerbatim":"0.91"},{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"min","samplingContext":"system","rawVerbatim":"0.91"},{"value":0.91,"low":null,"high":null,"kind":"point","display":"0.91","units":"mg/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"0.91"}]},{"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"},"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"},{"value":0,"low":null,"high":null,"kind":"non_detect","display":"Not detected","units":"mg/L","statisticType":"range","samplingContext":"plant:of Tap Sampling","rawVerbatim":"<0.05"}]},{"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":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","censored":false,"detectionLimit":null,"rawVerbatim":"3.1"},"federalStandard":{"type":"AL","value":15,"units":"ug/L","enforceable":true},"status":{"key":"under","label":"Within the limit"},"breakdowns":[],"measurements":[{"value":6.1,"low":0,"high":6.1,"kind":"range","display":"0–6.1","units":"ug/L","statisticType":"range","samplingContext":"plant:of Tap Sampling","rawVerbatim":"<1.0-6.1"},{"value":3.1,"low":null,"high":null,"kind":"point","display":"3.1","units":"ug/L","statisticType":"p90","samplingContext":"at_the_tap","rawVerbatim":"3.1"}]},{"analyteId":"gross_beta","name":"Gross Beta Particle Activity","family":"radionuclide","familyLabel":"Radionuclides","casrn":null,"whatItIs":"Gross beta particle activity — a combined measure of beta-emitting radioactive substances.","whyItMatters":"Long-term exposure above the federal screening level increases cancer risk.","measured":{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","censored":false,"detectionLimit":null,"rawVerbatim":"7.4"},"federalStandard":{"type":"MCLG","value":0,"units":"pCi/L","enforceable":false},"status":{"key":"detected","label":"Detected — no federal limit"},"breakdowns":[],"measurements":[{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"reported_level","samplingContext":"system","rawVerbatim":"7.4"},{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"min","samplingContext":"system","rawVerbatim":"7.4"},{"value":7.4,"low":null,"high":null,"kind":"point","display":"7.4","units":"pCi/L","statisticType":"max","samplingContext":"system","rawVerbatim":"7.4"}]}]}}