{"permit":"OH0004006","name":"Eramet Marietta Inc","state":"OH","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/OH0004006"},"about":[{"label":"What it is","text":"Electrometallurgical Products (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"Marietta, Ohio","href":"https://www.openstreetmap.org/?mlat=39.36739&mlon=-81.5212#map=14/39.36739/-81.5212"},{"label":"Last 12 months","text":"Over a limit 7 times, last in May 2026 (Manganese, total [as Mn]; Solids, total suspended; Chlorine, total residual). 24 required values not reported"},{"label":"Permit","text":"Expired Aug 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":"2024-03-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/OH0004006#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":"OH","sic":"33","permits":56,"list":"https://passage-data.com/api/v1/permits?state=OH&sic=33","page":"https://passage-data.com/dmr/s/OH/33"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":7,"over_by":[["Manganese, total [as Mn]",3],["Solids, total suspended",2],["Chlorine, total residual",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Manganese, total [as Mn]","times":3,"find_limits":{"parameter":"manganese","place":"US-OH","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=manganese&place=US-OH&medium=surface_water"},{"parameter":"Solids, total suspended","times":2,"find_limits":{"parameter":"total suspended solids","place":"US-OH","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-OH&medium=water_discharge"},{"parameter":"Chlorine, total residual","times":1,"find_limits":{"parameter":"chlorine","place":"US-OH","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=chlorine&place=US-OH&medium=surface_water"}],"limits":[{"outfall":"003","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"monthly average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"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":null},{"outfall":"003","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","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":null},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Cadmium, total recoverable","parameter_code":"01113","statistic":"monthly average","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Cadmium, total recoverable","parameter_code":"01113","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"monthly average","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","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":null},{"outfall":"003","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":null},{"outfall":"003","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":".2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"003","parameter":"Chlorination duration","parameter_code":"78739","statistic":"daily maximum","qualifier":"<=","value":"120","unit":"min","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"100","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Barium, total recoverable","parameter_code":"01009","statistic":"monthly average","qualifier":"<=","value":"220","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Barium, total recoverable","parameter_code":"01009","statistic":"daily maximum","qualifier":"<=","value":"2000","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Barium, total recoverable","parameter_code":"01009","statistic":"monthly average","qualifier":"<=","value":".167","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Barium, total recoverable","parameter_code":"01009","statistic":"daily maximum","qualifier":"<=","value":"1.52","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"monthly average","qualifier":"<=","value":"11","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily maximum","qualifier":"<=","value":"16","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"monthly average","qualifier":"<=","value":".00833","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily maximum","qualifier":"<=","value":".0122","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"monthly average","qualifier":"<=","value":"150","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"daily maximum","qualifier":"<=","value":"150","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"monthly average","qualifier":"<=","value":".114","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Zinc, total recoverable","parameter_code":"01094","statistic":"daily maximum","qualifier":"<=","value":".114","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Cadmium, total recoverable","parameter_code":"01113","statistic":"monthly average","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":["MAR","JUN","AUG","DEC"],"limit_set":null},{"outfall":"008","parameter":"Cadmium, total recoverable","parameter_code":"01113","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":["MAR","JUN","AUG","DEC"],"limit_set":null},{"outfall":"008","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"monthly average","qualifier":"<=","value":"9","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"daily maximum","qualifier":"<=","value":"170","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"monthly average","qualifier":"<=","value":".00682","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Lead, total recoverable","parameter_code":"01114","statistic":"daily maximum","qualifier":"<=","value":".129","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, total recoverable","parameter_code":"01118","statistic":"monthly average","qualifier":"<=","value":"110","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, total recoverable","parameter_code":"01118","statistic":"daily maximum","qualifier":"<=","value":"2200","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, total recoverable","parameter_code":"01118","statistic":"monthly average","qualifier":"<=","value":".0833","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","parameter":"Chromium, total recoverable","parameter_code":"01118","statistic":"daily maximum","qualifier":"<=","value":"1.67","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"008","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":null},{"outfall":"008","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":null},{"outfall":"589","parameter":"Biosolids weight indluding admixtures","parameter_code":"51129","statistic":"monthly average","qualifier":null,"value":null,"unit":"dry ton","report_only":true,"enforceable":true,"months":["DEC"],"limit_set":null},{"outfall":"589","parameter":"Biosolids weight indluding admixtures","parameter_code":"51129","statistic":"daily maximum","qualifier":null,"value":null,"unit":"dry ton","report_only":true,"enforceable":true,"months":["DEC"],"limit_set":null},{"outfall":"602","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"11.4","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"17","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"Coliform, fecal MF, MFC broth, 44.5 C","parameter_code":"31616","statistic":"monthly geometric mean","qualifier":"<=","value":"1000","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"Coliform, fecal MF, MFC broth, 44.5 C","parameter_code":"31616","statistic":"daily maximum","qualifier":"<=","value":"2000","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","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":null},{"outfall":"602","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":null},{"outfall":"602","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"40","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"9.5","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"602","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"15","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"50","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"monthly average","qualifier":"<=","value":".25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"daily maximum","qualifier":"<=","value":".5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"monthly average","qualifier":"<=","value":"50","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily maximum","qualifier":"<=","value":"100","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"monthly average","qualifier":"<=","value":"500","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":"<=","value":"1000","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Manganese, total [as Mn]","parameter_code":"01055","statistic":"monthly average","qualifier":"<=","value":"5000","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Manganese, total [as Mn]","parameter_code":"01055","statistic":"daily maximum","qualifier":"<=","value":"10000","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Phenolics, total recoverable","parameter_code":"32730","statistic":"monthly average","qualifier":"<=","value":"200","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","parameter":"Phenolics, total recoverable","parameter_code":"32730","statistic":"daily maximum","qualifier":"<=","value":"400","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"603","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":null},{"outfall":"603","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":null},{"outfall":"605","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"124","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"249","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"30.4","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"60.9","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"monthly average","qualifier":"<=","value":".135","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Cyanide, total [as CN]","parameter_code":"00720","statistic":"daily maximum","qualifier":"<=","value":".225","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"monthly average","qualifier":"<=","value":".066","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily maximum","qualifier":"<=","value":".132","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"monthly average","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"monthly average","qualifier":"<=","value":".23","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":"<=","value":".45","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Manganese, total [as Mn]","parameter_code":"01055","statistic":"monthly average","qualifier":"<=","value":"26.5","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Manganese, total [as Mn]","parameter_code":"01055","statistic":"daily maximum","qualifier":"<=","value":"78.1","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Phenolics, total recoverable","parameter_code":"32730","statistic":"monthly average","qualifier":"<=","value":".09","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","parameter":"Phenolics, total recoverable","parameter_code":"32730","statistic":"daily maximum","qualifier":"<=","value":".18","unit":"kg/d","report_only":false,"enforceable":true,"months":"all","limit_set":null},{"outfall":"605","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":null},{"outfall":"605","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":null}],"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":"OH","sic":"33"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=OH&sic=33","url":"https://passage-data.com/api/v1/permits?state=OH&sic=33","page":"https://passage-data.com/dmr/s/OH/33"},{"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":"manganese","place":"US-OH","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=manganese&place=US-OH&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=manganese&place=US-OH&medium=surface_water","page":"https://passage-data.com/limits/US-OH/manganese"},{"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":"OH0004006"},"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=OH0004006"},{"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":"OH0004006"},"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=OH0004006"}]}