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50-State Fleet Wash Water Recycling & NPDES Regulations

State-by-state environmental agency permits, mandatory sand/grit/oil interceptors, EPA Clean Water Act NPDES stormwater compliance, and closed-loop water reclaim recycling exemptions.

State	Environmental Agency	NPDES Stormwater Status	Sand/Oil Interceptor Mandate	Reclaim Recycling Exemption
Alabama	ADEM Water Division	NPDES General Permit ALG34	Mandatory 1,000+ Gal	100% Zero-Discharge Exempt
Alaska	ADEC Water Quality	AKG380000 General Wash	Mandatory Coalescing Plate	Exempt with Spill Basin
Arizona	ADEQ Clean Water	AZG2019-002 Industrial	Mandatory 1,500 Gal Sand Trap	Full Water Reuse Encouraged
Arkansas	ADEQ Office of Water	ARG750000 Vehicle Wash	Mandatory 3-Chamber Pit	Exempt from Surface Discharge
California	SWRCB / Regional Boards	General Order 2014-0057-DWQ	Mandatory 2,000 Gal + DAF	Strict Closed-Loop Mandate
Colorado	CDPHE Water Quality	COG600000 Commercial Wash	Mandatory Grit Interceptor	Zero-Discharge Permit Free
Connecticut	DEEP Water Bureau	Comprehensive General Permit	Mandatory Class 1 Oil/Water	Closed-Loop Preferred
Delaware	DNREC Surface Water	General Permit Regulation 7201	Mandatory Gravity Trap	Exempt from Effluent Testing
Florida	FL DEP Industrial WW	62-621.300 Generic Permit	Mandatory Sand/Oil Grit Pit	80%+ Reclaim Encouraged
Georgia	GA EPD Watershed	GAG400000 Fleet Permit	Mandatory 1,500 Gal Pit	Exempt with Zero Runoff
Hawaii	HI DOH Clean Water	NPDES Appendix G	Mandatory Oil Stop Valve	Closed-Loop Mandatory
Idaho	IDEQ Water Quality	IPDES General Permit	Mandatory Sand Trap	Zero-Discharge Exempt
Illinois	IL EPA Bureau of Water	General NPDES ILG64	Mandatory Triple-Basin Trap	Closed-Loop Recycle Exempt
Indiana	IDEM Office of Water	327 IAC 15 Rule 6	Mandatory Sand/Grit Basin	Zero Runoff Exempt
Iowa	Iowa DNR Water Quality	NPDES General Permit 2	Mandatory 1,000 Gal Separator	Closed-Loop Exempt
Kansas	KDHE Bureau of Water	General Permit G-WA01	Mandatory Sand Trap Pit	Reclaim Systems Exempt
Kentucky	EEC Division of Water	KPDES KYG300000	Mandatory Oil/Grit Basin	Zero Discharge Exempt
Louisiana	LDEQ Water Permits	LPDES LAG750000	Mandatory 3-Compartment Pit	Closed-Loop Exempt
Maine	Maine DEP Water Quality	Waste Discharge License	Mandatory Grit Trap	Zero-Discharge Exempt
Maryland	MDE Water Management	General Permit 16-VE	Mandatory Oil/Water Coalescing	Closed-Loop Permitted
Massachusetts	MassDEP Watershed	Surface Water Discharge BRP	Mandatory Sand Interceptor	Zero-Discharge Reclaim
Michigan	EGLE Water Resources	Rule 97 General Permit	Mandatory Sand/Oil Trap	Closed-Loop Exempt
Minnesota	MPCA Water Quality	MNG300000 Vehicle Wash	Mandatory Grit/Oil Separator	Closed-Loop Recycle Standard
Mississippi	MDEQ Environmental Quality	General Permit MSG13	Mandatory 1,200 Gal Pit	Exempt if 100% Recycled
Missouri	MO DNR Clean Water	General Permit MO-G75	Mandatory Sand-Oil Trap	Zero-Discharge Exempt
Montana	MT DEQ Water Protection	MTG750000 General Wash	Mandatory Grit Interceptor	Closed-Loop Reclaim Exempt
Nebraska	NDEE Water Quality	General Permit NEG75	Mandatory Sand/Oil Basin	Zero Discharge Exempt
Nevada	NDEP Bureau of Water	NPDES NVG201000	Mandatory Sand Trap Pit	Strict Water Reclaim Focus
New Hampshire	NHDES Water Division	General Permit NHG30	Mandatory Oil Separator	Zero-Discharge Exempt
New Jersey	NJ DEP Water Quality	NJPDES B7 General Wash	Mandatory Class 1 Separator	Closed-Loop Recycling Mandate
New Mexico	NMED Surface Water	NPDES General Permit	Mandatory Sand Trap	Closed-Loop Encouraged
New York	NYS DEC Division of Water	SPDES General GP-0-20-001	Mandatory Coalescing Interceptor	Closed-Loop Water Reclaim
North Carolina	NC DEQ Water Resources	NCG210000 Vehicle Wash	Mandatory Sand/Oil Basin	Zero Runoff Exempt
North Dakota	ND DEQ Water Quality	NDG750000 Commercial Wash	Mandatory Grit Interceptor	Closed-Loop Exempt
Ohio	Ohio EPA Surface Water	General Permit OHG68	Mandatory Triple-Chamber Pit	Zero-Discharge Exempt
Oklahoma	ODEQ Water Quality	OPDES OKG75	Mandatory 1,500 Gal Sand Trap	Closed-Loop Exempt
Oregon	OR DEQ Water Quality	1700-A General Permit	Mandatory Sand/Oil Separator	Closed-Loop Zero-Discharge
Pennsylvania	PA DEP Clean Water	PAG-03 Industrial Stormwater	Mandatory Grit Trap Basin	Zero Runoff Closed-Loop
Rhode Island	RIDEM Office of Water	RIPDES General Wash	Mandatory Oil Coalescer	Closed-Loop Preferred
South Carolina	SC DHEC Water Bureau	NPDES General SCG75	Mandatory Sand-Oil Trap	Zero Discharge Exempt
South Dakota	SD DANR Water Quality	General Permit SDG75	Mandatory Grit Basin	Closed-Loop Exempt
Tennessee	TDEC Water Resources	TNR050000 Sector M	Mandatory 1,500 Gal Pit	Zero Runoff Exempt
Texas	TCEQ Water Quality	TPDES General TXG830000	Mandatory 3-Basin Sand Trap	100% Reclaim Exempt
Utah	UDEQ Division of Water	UPDES UTR000000	Mandatory Sand/Oil Interceptor	Water Conservation Focus
Vermont	VT DEC Watershed	General Permit 3-9003	Mandatory Grit Pit	Zero-Discharge Exempt
Virginia	VADEQ Clean Water	VPDES VAG75	Mandatory Sand-Oil Basin	Zero Runoff Exempt
Washington	WA Ecology Water Quality	Vehicle Wash General WAG99	Mandatory Oil/Water Separator	Strict Reclaim Standard
West Virginia	WV DEP Division of Water	NPDES General WV0116025	Mandatory Sand Trap Pit	Zero-Discharge Exempt
Wisconsin	WI DNR Water Quality	WPDES WI-0046531	Mandatory Grit/Oil Separator	Closed-Loop Reclaim
Wyoming	WY DEQ Water Quality	WYG750000 General Wash	Mandatory Sand Interceptor	Zero-Discharge Exempt