{"permit":"MO0043770","name":"MERAMEC CAVERNS ENTERPRISES, INC.","state":"MO","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MO0043770"},"about":[{"label":"What it is","text":"Nonresidential Building Operators (EPA's industry listing)"},{"label":"Where","text":"Stanton, Missouri","href":"https://www.openstreetmap.org/?mlat=38.2726095&mlon=-91.105895#map=14/38.2726095/-91.105895"},{"label":"Last 12 months","text":"No values over a limit. 12 required values not reported. 3 of 3 reports filed late"},{"label":"Permit","text":"Expired Dec 31, 2024; its limits still apply until a new permit is issued, and EPA still expects the reports"}],"renewal_due":null,"renewal_check":{"offered_because":"permit_expired","application_due":"2024-07-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MO0043770#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":"MO","sic":"65","permits":188,"list":"https://passage-data.com/api/v1/permits?state=MO&sic=65","page":"https://passage-data.com/dmr/s/MO/65"},"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":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"3.6","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP"],"limit_set":"Quarterly"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"7.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","OCT","NOV","DEC"],"limit_set":"Quarterly"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"1.4","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP"],"limit_set":"Quarterly"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"2.9","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","OCT","NOV","DEC"],"limit_set":"Quarterly"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"126","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Quarterly"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"30-day geometric mean","qualifier":null,"value":null,"unit":"#/100mL","report_only":true,"enforceable":true,"months":"all","limit_set":"Quarterly"}],"next":[{"tool":"list_permits","says":"Screening this industry? list_permits lists every permit of it in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"MO","sic":"65"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=MO&sic=65","url":"https://passage-data.com/api/v1/permits?state=MO&sic=65","page":"https://passage-data.com/dmr/s/MO/65"},{"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":"MO0043770"},"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=MO0043770"},{"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":"MO0043770"},"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=MO0043770"}]}