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MPLX Terminals LLC - Marietta Terminal

Petroleum Bulk Stations & Terminals, Marietta, Ohio. NPDES permit OH0048747, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 48 reports late

Limits in force (51)

ParameterStatisticLimitMonthsOutfall
Flow ratemonthly averagereport only (gal/d)all year001
Flow ratedaily maximumreport only (gal/d)all year001
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)May001
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)May001
pHdaily minimum≥ 6.5 SUMay001
pHdaily maximum≤ 9 SUMay001
Solids, total suspendedmonthly averagereport only (mg/L)May001
Solids, total suspendeddaily maximumreport only (mg/L)May001
Oil and grease, hexane extr methodmonthly average≤ 15 mg/LMay001
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/LMay001
Oil & grease severitymonthly averagereport only (severity)all year001
Oil & grease severitydaily maximumreport only (severity)all year001
Flow ratemonthly averagereport only (gal/d)all year002
Flow ratedaily maximumreport only (gal/d)all year002
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)May002
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)May002
pHdaily minimum≥ 6.5 SUMay002
pHdaily maximum≤ 9 SUMay002
Solids, total suspendedmonthly averagereport only (mg/L)May002
Solids, total suspendeddaily maximumreport only (mg/L)May002
Oil and grease, hexane extr methodmonthly average≤ 15 mg/LMay002
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/LMay002
Oil & grease severitymonthly averagereport only (severity)all year002
Oil & grease severitydaily maximumreport only (severity)all year002
Flow ratemonthly averagereport only (gal/d)all year003
Flow ratedaily maximumreport only (gal/d)all year003
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)May003
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)May003
pHdaily minimum≥ 6.5 SUMay003
pHdaily maximum≤ 9 SUMay003
Solids, total suspendedmonthly averagereport only (mg/L)May003
Solids, total suspendeddaily maximumreport only (mg/L)May003
Oil and grease, hexane extr methodmonthly average≤ 15 mg/LMay003
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/LMay003
Oil & grease severitymonthly averagereport only (severity)all year003
Oil & grease severitydaily maximumreport only (severity)all year003
Flow ratemonthly averagereport only (gal/d)all year091
Flow ratedaily maximumreport only (gal/d)all year091
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year091
pHdaily minimumreport only (SU)all year091
pHdaily maximumreport only (SU)all year091
Solids, total suspendedmonthly averagereport only (mg/L)all year091
Solids, total suspendeddaily maximumreport only (mg/L)all year091
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year091
Iron, total recoverablemonthly averagereport only (ug/L)all year091
Iron, total recoverabledaily maximumreport only (ug/L)all year091
Toluenedaily maximumreport only (ug/L)all year091
Benzenedaily maximumreport only (ug/L)all year091
Ethylbenzenedaily maximumreport only (ug/L)all year091
Chlorine, total residualdaily maximumreport only (mg/L)all year091
Xylene [mix of m+o+p]daily maximumreport only (ug/L)all year091

Cited limits by parameter: Ohio's rules and the federal ones.

Same industry: the 61 Wholesale Trade — Nondurable Goods permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0048747 · MCP: https://passage-data.com/mcp