{"permit":"MD0067865","name":"HOWARD COUNTY DPW","state":"MD","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MD0067865"},"about":[{"label":"What it is","text":"Refuse Systems (EPA's industry listing)"},{"label":"Where","text":"Marriottsville, Maryland","href":"https://www.openstreetmap.org/?mlat=39.313&mlon=-76.914001#map=14/39.313/-76.914001"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Aug 31, 2027"}],"renewal_due":{"date":"2027-03-04","when":"Mar 4, 2027 (in 120 days)","urgent":false},"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-03-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MD0067865#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":{"state":"MD","sic":"4953","permits":14,"list":"https://passage-data.com/api/v1/permits?state=MD&sic=4953","page":"https://passage-data.com/dmr/s/MD/4953"},"limits_from_version":null,"record":{"last_filed":"2026-06-30","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"Dichloromethane","parameter_code":"03821","statistic":"daily maximum","qualifier":"<=","value":"5","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"19-DP-3224"},{"outfall":"001","parameter":"Dichloromethane","parameter_code":"03821","statistic":"daily maximum","qualifier":"<=","value":"5","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"19-DP-3224"},{"outfall":"001","parameter":"Carbon tetrachloride","parameter_code":"32102","statistic":"daily 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`get` is the address to fetch.","arguments":{"state":"MD","sic":"4953"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=MD&sic=4953","url":"https://passage-data.com/api/v1/permits?state=MD&sic=4953","page":"https://passage-data.com/dmr/s/MD/4953"},{"tool":"check_dmr","says":"Before your user files this permit's DMR: check_dmr sets each value beside the permit's limit for that period, with EPA's violation rule's verdict.","arguments":{"permit":"MD0067865"},"needs":{"period_end":"The reporting period: its month (2026-09).","values":"The period's values as your user will file them: [{outfall, parameter, statistic, value, unit}, ...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=MD0067865"},{"tool":"fill_dmr","says":"Has your user the plant's raw daily results? fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"MD0067865"},"needs":{"period_end":"The reporting period: its month (2026-09).","rows":"The plant's results: [{date, parameter, value, unit, point}, ...]; or `table`, the lab's or plant's export as text."},"post":"/api/v1/dmr/fill","url":"https://passage-data.com/api/v1/dmr/fill","page":"https://passage-data.com/dmr/?permit=MD0067865"}]}