{"permit":"OK0029149","name":"Terra Nitrogen, L.P.- Verdigris","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/OK0029149"},"about":[{"label":"What it is","text":"Nitrogenous Fertilizers (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"Claremore, Oklahoma","href":"https://www.openstreetmap.org/?mlat=36.231784&mlon=-95.718852#map=14/36.231784/-95.718852"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Nov 30, 2028"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"OK","sic":"28","permits":11,"list":"https://passage-data.com/api/v1/permits?state=OK&sic=28","page":"https://passage-data.com/dmr/s/OK/28"},"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":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"35","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"monthly average","qualifier":"<=","value":"7.5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"monthly average","qualifier":"<=","value":"131","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"261","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":"<=","value":"14.9","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":"<=","value":"7.1","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"daily maximum","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"daily maximum","qualifier":"<=","value":"16","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":"<=","value":"200","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":"<=","value":"95","unit":"lb/d","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"daily maximum","qualifier":"<=","value":"400","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"daily maximum","qualifier":"<=","value":"214","unit":"lb/d","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"25.9","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"18.2","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"50.9","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"40.9","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"348","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"244","unit":"lb/d","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"683","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"549","unit":"lb/d","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, nitrate total [as N]","parameter_code":"00620","statistic":"monthly average","qualifier":"<=","value":"41","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, nitrate total [as N]","parameter_code":"00620","statistic":"daily maximum","qualifier":"<=","value":"116","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, nitrate total [as N]","parameter_code":"00620","statistic":"monthly average","qualifier":"<=","value":"553","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Nitrogen, nitrate total [as N]","parameter_code":"00620","statistic":"daily maximum","qualifier":"<=","value":"1562","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":"<=","value":"8","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":"70","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":"<=","value":"139","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"outfall":"001","parameter":"Oxidants, total residual","parameter_code":"34044","statistic":"instantaneous maximum","qualifier":"<=","value":".099","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED PROCESS WASTEWATER"},{"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":"TREATED PROCESS WASTEWATER"},{"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":"PROCESS CONDENSATE WASTEWATER"},{"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":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"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":"TREATED PROCESS WASTEWATER"},{"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":"PROCESS CONDENSATE WASTEWATER"},{"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":["JUN","JUL","AUG","SEP","OCT"],"limit_set":"PROCESS CONDENSATE WASTEWATER"},{"outfall":"TX1","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":null,"value":null,"unit":"SU","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":null,"value":null,"unit":"SU","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":null,"value":null,"unit":"SU","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":null,"value":null,"unit":"SU","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Whole effluent toxicity - retest #1","parameter_code":"22415","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Whole effluent toxicity - retest #1","parameter_code":"22415","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Whole effluent toxicity - retest #2","parameter_code":"22416","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Whole effluent toxicity - retest #2","parameter_code":"22416","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"LC50 Static Renewal 48Hr Acute Daphnia pulex","parameter_code":"TAM3D","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"LC50 Static Renewal 48Hr Acute Pimephales promelas","parameter_code":"TAM6C","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TGP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Pass/Fail Static Renewal 7Day Chronic Pimephales promelas","parameter_code":"TGP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex","parameter_code":"TIM3D","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"LC50 Static Renewal 48Hr Acute Pimephales promelas","parameter_code":"TIM6C","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"%Mortality Static Renewal 48Hr Acute Daphnia Pulex","parameter_code":"TJM3D","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"% Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C","parameter_code":"TJM6C","statistic":"48-hour minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"%Mortality 7Day Chronic Ceriodaphnia dubia","parameter_code":"TJP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"%Mortality Static Renewal 7Day Chronic Pimephales Promelas","parameter_code":"TJP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TLP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas","parameter_code":"TLP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TOP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas","parameter_code":"TOP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TPP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas","parameter_code":"TPP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia","parameter_code":"TQP3B","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"},{"outfall":"TX1","parameter":"Coef Of Var Static Renewal 7Day Chronic Pimephales promelas","parameter_code":"TQP6C","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Chronic WET Test Monitoring"}],"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":"OK","sic":"28"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=OK&sic=28","url":"https://passage-data.com/api/v1/permits?state=OK&sic=28","page":"https://passage-data.com/dmr/s/OK/28"},{"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":"OK0029149"},"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=OK0029149"},{"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":"OK0029149"},"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=OK0029149"}]}