{"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/mdbp-summaries"},"page":{"paginated":true,"total":63266,"limit":50,"offset":0,"returned":50,"hasMore":true,"nextOffset":50,"prevOffset":null},"window":{"periodFrom":"2021-09-25","periodTo":"2026-09-25","limit":{"maxYears":5,"earliestAcceptable":"2021-09-25","why":"A window wider than five years makes this a multi-second scan of every record in the installation. THIS LIMIT IS OURS AND IS NOT A LIMIT ON WHAT THE AGENCY RECORDS: it holds those records for any range, and a narrower window here is an economy of ours rather than a boundary of theirs. One system's records carry no window limit at all, so a question about a single system is better asked there."}},"reading":"The agency's own summarized field sample results for every system in this installation EXCEPT those the agency records as Non-Public — its own exclusion on every all-systems page of its application, and some of the systems it removes are active, one row per monitoring period per analyte per facility. The help shipped with the agency's application describes them as \"summaries of field results collected and assessed for the federal Interim Enhanced Surface Water Treatment Rule and Disinfectant ByProduct Rule. They are also called MDBP Summaries.\" THE WINDOW ABOVE IS ON THE MONITORING PERIOD, not on a collection date — these records have none, so the dates you can narrow this list by are periodFrom and periodTo. EACH ROW IS FACILITY-KEYED, which is why facility is published beside system: the agency records these against a facility and its analyte level, so two rows of one system in one period are not duplicates. THE COMPLIANCE INDICATORS ARE THE AGENCY'S OWN DETERMINATION and are published as it records them. They are not a judgement of the water and nothing here ranks a system. 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