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Document ID us-mpmeg-2025-06-03 Title Metal Products and Machinery Effluent Guidelines URL https://www.epa.gov/eg/metal-products-and-machinery-effluent-guidelines Jurisdiction /us Subdomain(s) none Language Status completed Analyzed at 2026-05-12 04:27:36.662281+00:00 Relevance inventory_targeted_fetch

Q Qualitative Requirements (4)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativeunknownmandatoryNPDES Permit IncorporationwastewaterThe MP&M regulation covers only direct dischargers and the requirements are incorporated into NPDES permits.Applies to direct dischargers in the covered sectorslow
#Q002administrativeoperationalmandatoryEffluent Limitations ApplicabilitywastewaterThe MP&M effluent limitations apply only to facilities that directly discharge wastewater from oily operations in the Oily Wastes subcategory.Applies only to facilities that directly discharge wastewater from oily operations in the Oily Wastes subcategorylow
#Q003administrativeunknownmandatoryNPDES and Pretreatment Permit IncorporationwastewaterThe Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargersdirect dischargersA point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans., and permits or other control mechanisms for indirect dischargersindirect dischargersA facility that discharges pollutants to a publicly owned treatment works (municipal sewage treatment plant). (see Pretreatment Program).Applies to direct and indirect dischargers in the pesticide chemicals categoryhigh
#Q004administrativeunknownguidanceSecure Website UsageotherShare sensitive information only on official, secure websites.When interacting with .gov websiteshigh

P Quantitative Requirements (2)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001chemicaltreatmentmandatoryOil and grease (as hexane extractable material)wastewaterrequirementnull nullThe regulation sets daily maximum limits for two pollutants, oil and grease (as hexane extractable material) and total suspended solids, based on the best practicable control technology (BPT)Apply only to facilities that directly discharge wastewater from oily operations in the Oily Wastes subcategorylow
#P002physicaltreatmentmandatoryTotal suspended solidswastewaterrequirementnull nullThe regulation sets daily maximum limits for two pollutants, oil and grease (as hexane extractable material) and total suspended solids, based on the best practicable control technology (BPT)Apply only to facilities that directly discharge wastewater from oily operations in the Oily Wastes subcategorylow

D Definitions (26)

Req ID Category Name Context Confidence
#D001MP &MMetal Products and Machineryhigh
#D002direct dischargersA point source that discharges a pollutant(s) to waters of the United States, such as streams, lakes, or oceans. These sources are subject to the National Pollutant Discharge Elimination System program regulations. Municipal and industrial facilities that introduce pollution through a defined conveyance or system such as outlet pipes are direct dischargers.high
#D003total suspended solidsA measure of the filterable solids present in a sample, as determined by the method specified in 40 CFR Part 136.high
#D004BPTbest practicable control technologyhigh
#D005NPDESNational Pollutant Discharge Elimination Systemhigh
#D006indirect dischargersA facility that discharges pollutants to a publicly owned treatment works (municipal sewage treatment plant).high
#D007BPTBest Practicable Technology Currently Availablehigh
#D008BATBest Available Technology Economically Achievablehigh
#D009NSPSNew Source Performance Standardshigh
#D010PSESPretreatment Standards for Existing Sourceshigh
#D011PSNSPretreatment Standards for New Sourceshigh
#D012NPDESNational Pollutant Discharge Elimination Systemhigh
#D013BPTBest Practicable Technology Currently Availablehigh
#D014BATBest Available Technology Economically Achievablehigh
#D015NSPSNew Source Performance Standardshigh
#D016PSESPretreatment Standards for Existing Sourceshigh
#D017PSNSPretreatment Standards for New Sourceshigh
#D018Guidance DocumentAssists permit writers and pretreatment coordinators in developing appropriate NPDES permits and pretreatment requirements for pharmaceutical facilitieshigh
#D019Development DocumentDescribes industry processes, pollutants generated, available control and treatment technologies, the technical basis for the final rule, and costs of the rulehigh
#D020NPDESNational Pollutant Discharge Elimination Systemhigh
#D021[*]requiredhigh
#D022Biochemical oxygen demand (BOD)a measure of the oxygen-consuming properties of organic matter.high
#D023BOD 7refers to the oxygen demand as determined by incubation at 20 ºC for a period of 7 days using an acclimated seed.high
#D024Development DocumentIndustry description, wastewater characterization, treatment technologies, regulatory compliance cost estimates, and pollutant loadings for the final rulehigh
#D025NAICSNorth American Industrial Classification Systemhigh
#D026PSES:Pretreatment Standards for Existing Sourceshigh