{"permit":"PA0285111","name":"MARKWEST LIBERTY MIDSTREAM & RESOURCES LLC","state":"PA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/PA0285111"},"about":[{"label":"What it is","text":"Crude Petroleum And Natural Gas (EPA's industry listing)"},{"label":"Where","text":"Mcdonald, Pennsylvania","href":"https://www.openstreetmap.org/?mlat=40.379444&mlon=-80.286583#map=14/40.379444/-80.286583"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Jul 31, 2029"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"PA","sic":"13","permits":16,"list":"https://passage-data.com/api/v1/permits?state=PA&sic=13","page":"https://passage-data.com/dmr/s/PA/13"},"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":"Oxygen demand, chem. [high level] [COD]","parameter_code":"00340","statistic":"instantaneous maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"instantaneous minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"instantaneous maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"instantaneous maximum","qualifier":"<=","value":"75","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Oil & Grease","parameter_code":"00556","statistic":"instantaneous maximum","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"instantaneous maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"instantaneous maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Iron, total [as Fe]","parameter_code":"01045","statistic":"instantaneous maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Manganese, total [as Mn]","parameter_code":"01055","statistic":"instantaneous maximum","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Aluminum, total [as Al]","parameter_code":"01105","statistic":"instantaneous maximum","qualifier":"<=","value":".75","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Benzene, ethylbenzene, toluene, xylene combination","parameter_code":"30383","statistic":"instantaneous maximum","qualifier":"<=","value":".25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"outfall":"001","parameter":"Benzene","parameter_code":"34030","statistic":"instantaneous maximum","qualifier":"<=","value":"2.5","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"001-A"},{"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":"001-A"},{"outfall":"001","parameter":"Perfluorooctanoic acid (PFOA)","parameter_code":"51521","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-Q"},{"outfall":"001","parameter":"Perfluorooctanesulfonate","parameter_code":"51526","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-Q"},{"outfall":"001","parameter":"Perfluorobutanesulfonic acid (PFBS)","parameter_code":"52602","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-Q"},{"outfall":"001","parameter":"Hexafluoropropylene oxide dimer acid (HFPO-DA)","parameter_code":"52612","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"001-Q"}],"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":"PA","sic":"13"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=PA&sic=13","url":"https://passage-data.com/api/v1/permits?state=PA&sic=13","page":"https://passage-data.com/dmr/s/PA/13"},{"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":"PA0285111"},"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=PA0285111"},{"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":"PA0285111"},"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=PA0285111"}]}