{"permit":"OK0045373","name":"D & L Manufacturing, Inc.","state":"OK","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/OK0045373"},"about":[{"label":"What it is","text":"Oil And Gas Field Machinery (EPA's industry listing)"},{"label":"Where","text":"Tulsa, Oklahoma","href":"https://www.openstreetmap.org/?mlat=36.135003&mlon=-96.047243#map=14/36.135003/-96.047243"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until May 31, 2028"}],"renewal_due":null,"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-12-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/OK0045373#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":null,"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"31","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"60","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"7.42","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"14.361","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"monthly average","qualifier":"<=","value":"26","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"52","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"monthly average","qualifier":"<=","value":"6.223","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"12.447","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"monthly average","qualifier":"<=","value":"70","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"daily maximum","qualifier":"<=","value":"110","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"monthly average","qualifier":"<=","value":".017","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"daily maximum","qualifier":"<=","value":".026","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"monthly average","qualifier":"<=","value":"1710","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":"<=","value":"2770","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"monthly average","qualifier":"<=","value":".409","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":"<=","value":".663","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"monthly average","qualifier":"<=","value":"2070","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily maximum","qualifier":"<=","value":"3380","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"monthly average","qualifier":"<=","value":".495","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily maximum","qualifier":"<=","value":".809","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"monthly average","qualifier":"<=","value":"2380","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"daily maximum","qualifier":"<=","value":"3980","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"monthly average","qualifier":"<=","value":".57","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"daily maximum","qualifier":"<=","value":".953","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Silver total recoverable","parameter_code":"01079","statistic":"monthly average","qualifier":"<=","value":"240","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Silver total recoverable","parameter_code":"01079","statistic":"daily maximum","qualifier":"<=","value":"430","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Silver total recoverable","parameter_code":"01079","statistic":"monthly average","qualifier":"<=","value":".057","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Silver total recoverable","parameter_code":"01079","statistic":"daily maximum","qualifier":"<=","value":".103","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"monthly average","qualifier":"<=","value":"1480","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"daily maximum","qualifier":"<=","value":"2610","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"monthly average","qualifier":"<=","value":".354","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"daily maximum","qualifier":"<=","value":".625","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"monthly average","qualifier":"<=","value":"430","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"daily maximum","qualifier":"<=","value":"690","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"monthly average","qualifier":"<=","value":".103","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"daily maximum","qualifier":"<=","value":".165","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cyanide [A]","parameter_code":"01257","statistic":"monthly average","qualifier":"<=","value":"650","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cyanide [A]","parameter_code":"01257","statistic":"daily maximum","qualifier":"<=","value":"1200","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cyanide [A]","parameter_code":"01257","statistic":"monthly average","qualifier":"<=","value":".156","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"outfall":"001","parameter":"Cyanide [A]","parameter_code":"01257","statistic":"daily maximum","qualifier":"<=","value":".287","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"Rinse water from metal coating parts & finishing processes"},{"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":"Rinse water from metal coating parts & finishing processes"},{"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":"Rinse water from metal coating parts & finishing processes"}],"next":[{"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":"OK0045373"},"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=OK0045373"},{"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":"OK0045373"},"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=OK0045373"}]}