{"permit":"UT0021920","name":"LOGAN CITY CORPORATION","state":"UT","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/UT0021920"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Logan, Utah","href":"https://www.openstreetmap.org/?mlat=41.739368&mlon=-111.902276#map=14/41.739368/-111.902276"},{"label":"Last 12 months","text":"Over a limit once, last in May 2026 (Cyanide, total [as CN])"},{"label":"Permit","text":"In force until Oct 31, 2030"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["Cyanide, total [as CN]",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Cyanide, total [as CN]","times":1,"find_limits":{"parameter":"cyanide","place":"US-UT","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=cyanide&place=US-UT&medium=surface_water"}],"limits":[{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly average minimum","qualifier":">=","value":"5.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUL","AUG","SEP"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly average minimum","qualifier":">=","value":"5.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["OCT","NOV","DEC"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly average minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly average minimum","qualifier":">=","value":"5","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUL","AUG","SEP"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["OCT","NOV","DEC"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"4","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"35","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":"<=","value":"35","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Oil & Grease","parameter_code":"00556","statistic":"daily maximum","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUL","AUG","SEP"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"3.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["OCT","NOV","DEC"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"3","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUL","AUG","SEP"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"5.8","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"12","unit":"mg/L","report_only":false,"enforceable":true,"months":["OCT","NOV","DEC"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"11","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR"],"limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"semi-annual maximum","qualifier":"<=","value":"12901","unit":"kg/yr","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"Semi Annual Phosphorus"},{"outfall":"003","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"semi-annual maximum","qualifier":"<=","value":"11487","unit":"kg/yr","report_only":false,"enforceable":true,"months":["MAY","JUN","AUG","SEP","OCT"],"limit_set":"Semi Annual Phosphorus"},{"outfall":"003","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"maximum monthly average","qualifier":"<=","value":"5.4","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Arsenic, total [as As]","parameter_code":"01002","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Arsenic, total [as As]","parameter_code":"01002","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Lead, total [as Pb]","parameter_code":"01051","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Lead, total [as Pb]","parameter_code":"01051","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Molybdenum, total [as Mo]","parameter_code":"01062","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Molybdenum, total [as Mo]","parameter_code":"01062","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Silver, total [as Ag]","parameter_code":"01077","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Silver, total [as Ag]","parameter_code":"01077","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Copper, total recoverable","parameter_code":"01119","statistic":"maximum monthly average","qualifier":"<=","value":"25.2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Selenium, total [as Se]","parameter_code":"01147","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Selenium, total [as Se]","parameter_code":"01147","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Phosphate, ortho [as P]","parameter_code":"04175","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"E. coli","parameter_code":"51040","statistic":"maximum monthly average","qualifier":"<=","value":"126","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"E. coli","parameter_code":"51040","statistic":"maximum weekly average","qualifier":"<=","value":"158","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, total dissolved","parameter_code":"70295","statistic":"daily maximum","qualifier":"<=","value":"1237","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, nitrate total [as NO3]","parameter_code":"71850","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Nitrogen, nitrite total [as NO2]","parameter_code":"71855","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"maximum monthly average","qualifier":"<=","value":".012","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"quarterly maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"METALS MONITORING"},{"outfall":"003","parameter":"BOD, 5-day, percent removal","parameter_code":"81010","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Flow, total","parameter_code":"82220","statistic":"maximum monthly average","qualifier":"<=","value":"21","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Flow, total","parameter_code":"82220","statistic":"maximum monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Discharge to Swift Slough"},{"outfall":"003","parameter":"Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TGP3B","statistic":"daily maximum","qualifier":"<=","value":"0","unit":"pass=0;fail=1","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","OCT","NOV","DEC"],"limit_set":"WET TEST"},{"outfall":"003","parameter":"Pass/Fail Static Renewal 7Day Chronic Pimephales promelas","parameter_code":"TGP6C","statistic":"daily maximum","qualifier":"<=","value":"0","unit":"pass=0;fail=1","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","JUL","AUG","SEP"],"limit_set":"WET TEST"}],"next":[{"tool":"find_limits","says":"What do the rules say about what it went over on? find_limits gives the cited state and federal limits for it, each with its rule; `get` is the address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"cyanide","place":"US-UT","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=cyanide&place=US-UT&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=cyanide&place=US-UT&medium=surface_water","page":"https://passage-data.com/limits/US-UT/cyanide"},{"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":"UT0021920"},"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=UT0021920"},{"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":"UT0021920"},"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=UT0021920"}]}