{"meta":{"source":{"agency":"Mississippi State Department of Health","system":"SDWIS/STATE"},"limits":"Regulatory records as the agency reports them. AN EMPTY RESULT MEANS NOTHING MATCHED THIS RESPONSE'S SCOPE, NOT THAT THE AGENCY HAS NO RECORD: many collections are narrowed by the agency's own filters; each says so in its `scope` or `reading`. A record type this API does not serve is not evidence the records do not exist, and some of what the agency publishes is not served here. Read those before reporting any of these as an absence of fact.","coverage":"https://api.alpha.dww-next.mswater.us/coverage","apiVersion":"1.0.0","humanUrl":"https://alpha.dww-next.mswater.us/water-systems/MS0020001"},"page":{"paginated":true,"total":1,"limit":50,"offset":0,"returned":1,"hasMore":false,"nextOffset":null,"prevOffset":null},"pwsid":"MS0020001","reading":"Samples analysed for analyte 1036. Only samples whose laboratory record is active and of type AC are listed — legacy's own join; the code is the agency's, published without a decode. Collected on or after 2024-09-25 and on or before 2026-09-25. Samples taken for compliance purposes and not rejected — the same filtering the agency's own Chem/Rad Samples page applies, though not the same SET: its page also applies a two-year default. MICROBIOLOGICAL analytes are a separate record type and are not here — coliform, E. coli and the protozoa among them. Asking for one of those here returns nothing, which is not a statement about the system: they are served at /v1/water-systems/MS0020001/coliform-samples, and each row of /v1/water-systems/MS0020001/analytes points at whichever of the two holds its records.","findings":{"analytes":{"total":11,"everDetected":4},"results":{"detected":4,"notDetected":7,"notReported":0,"total":11},"samples":{"total":1},"collected":{"earliest":"2025-01-27","latest":"2025-01-27"},"detectedAnalytes":[{"analyte":{"code":"1005","name":"ARSENIC","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"results":{"total":1,"detected":1},"firstDetectedOn":"2025-01-27","lastDetectedOn":"2025-01-27","unitsReported":1},{"analyte":{"code":"1010","name":"BARIUM","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"results":{"total":1,"detected":1},"firstDetectedOn":"2025-01-27","lastDetectedOn":"2025-01-27","unitsReported":1},{"analyte":{"code":"1025","name":"FLUORIDE","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"results":{"total":1,"detected":1},"firstDetectedOn":"2025-01-27","lastDetectedOn":"2025-01-27","unitsReported":1},{"analyte":{"code":"1036","name":"NICKEL","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"results":{"total":1,"detected":1},"firstDetectedOn":"2025-01-27","lastDetectedOn":"2025-01-27","unitsReported":1}],"scope":"The 1 samples that were analysed for 1036 and that this collection publishes — taken for compliance purposes, not rejected, with at least one Accepted or Validated result, which is the agency's own filter — and every result on them, not only that analyte's. The filter selects samples; the agency's own results page then shows every analyte on a selected sample, and this counts what it shows. So `analytes.total` is how many distinct analytes appear on those samples and `everDetected` is how many of THOSE were detected — neither is a count of 1036 results. For that analyte alone, read the rows. NARROWED TO samples collected inside the date window you asked for — this is not every sample on record. AND THIS IS ONLY THE CHEM/RAD HALF: if the analyte you asked for is microbiological, its samples are at /coliform-samples and a zero here says nothing about them.","note":"Every page of what this request matched, not only this response. `detectedAnalytes` lists every analyte with at least one DETECTED result among the samples this request matched (samples collected inside the date window you asked for) on the samples the analyte filter selected — READ `scope`, this is not restricted to that analyte. It is here because page one is not a sample of the record: samples arrive newest first, so the analytes a system stopped finding are systematically the ones a first page cannot show, and for most systems with any detection at least one detected analyte is missing from page one. This reports what the agency recorded and compares it to NOTHING: no limit, standard or health threshold is published anywhere in this record type, so a detection here is not by itself a statement that anything was wrong."},"samples":[{"labSampleNumber":"IN-250128-010","sampleType":{"code":"RT","label":"Routine","labelSource":"dww-help"},"collected":{"date":"2025-01-27","time":"12:45:00"},"samplingPoint":{"id":"TF080","location":"Treatment Plant T080"},"laboratory":"MSDH LAB","findings":{"detected":4,"notDetected":7,"notReported":0,"total":11},"results":[{"analyte":{"code":"1005","name":"ARSENIC","type":{"code":"IOC","label":"Inorganic 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Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1020","name":"CHROMIUM","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"not-detected","concentration":null,"reportingLevel":{"value":0.0005,"unit":"MG/L","type":{"code":"MRL","label":"Minimum Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1025","name":"FLUORIDE","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"QC 10-109-12-2-A","resultKind":"concentration","resultType":"detected","concentration":{"value":0.108,"unit":"MG/L"},"reportingLevel":null,"reported":{"text":"0.108","unit":"MG/L"},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1035","name":"MERCURY","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"not-detected","concentration":null,"reportingLevel":{"value":0.0005,"unit":"MG/L","type":{"code":"MRL","label":"Minimum Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1036","name":"NICKEL","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"detected","concentration":{"value":0.0013,"unit":"MG/L"},"reportingLevel":null,"reported":{"text":"0.0013","unit":"MG/L"},"monitoringPeriod":{"begins":null,"ends":null},"dataQuality":[]},{"analyte":{"code":"1045","name":"SELENIUM","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"not-detected","concentration":null,"reportingLevel":{"value":0.0025,"unit":"MG/L","type":{"code":"MRL","label":"Minimum Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1074","name":"ANTIMONY, TOTAL","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"not-detected","concentration":null,"reportingLevel":{"value":0.0005,"unit":"MG/L","type":{"code":"MRL","label":"Minimum Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1075","name":"BERYLLIUM, TOTAL","type":{"code":"IOC","label":"Inorganic Chemical","labelSource":"dww-help"}},"methodCode":"200.8","resultKind":"concentration","resultType":"not-detected","concentration":null,"reportingLevel":{"value":0.0005,"unit":"MG/L","type":{"code":"MRL","label":"Minimum Reporting Level","labelSource":"dww-help"}},"reported":{"text":null,"unit":null},"monitoringPeriod":{"begins":"2023-01-01","ends":"2025-12-31"},"dataQuality":[]},{"analyte":{"code":"1085","name":"THALLIUM, TOTAL","type":{"code":"IOC","label":"Inorganic 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Monitoring for many analytes is required once every three or nine years, so a short window is not evidence that a system stopped being sampled.","everything":"/v1/water-systems/MS0020001/samples?analyte=1036"},"alsoRecorded":{"note":"Testing is kept in more than one record type, and each is a separate collection here. The dates in this response are this collection's only. Read the field named below on each to see how far that record reaches.","collections":[{"resource":"coliform-samples","holds":"microbiological samples — coliform, E. coli and the protozoa among them","read":"findings.collected","url":"/v1/water-systems/MS0020001/coliform-samples"},{"resource":"lead-and-copper","holds":"90th-percentile monitoring periods, which are summaries rather than samples","read":"findings.monitoringPeriod","url":"/v1/water-systems/MS0020001/lead-and-copper"}]}}