PERMIT RATIONALE FOR REISSUANCE
Noble Carwash LLC
Hancock County
Pass Christian,, Mississippi
Water NPDES No. MS0060569
January 2026

I.	DESCRIPTION OF WASTEWATER – Car Wash Reject Water

DESCRIPTION OF WASTEWATER TREATMENT – Noble Carwash LLC discharges 1,100 gallons per day of treated carwash effluent through an existing outfall into Mill Creek.

II.	RECEIVING WATERS – Mill Creek. The receiving waters are located in the Pasagoula River drainage basin and are classified as Fish and Wildlife. At the point of discharge, the receiving stream does not appear on the current State of Mississippi 303(d) List of Impaired Waterbodies. The discharge also does not appear on a completed Total Maximum Daily Load (TMDL).

III.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code pt. 6, Commercial Facility Guidelines (Technology), State of Mississippi Water Quality Criteria (MSWQS), TMDL

IV.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value				Basis
Flow			0.011 MGD		Design
TSS 			30 mg/l 			Technology
pH			6.0 to 9.0 S.U.	MSWQS
Oil/Grease		10 mg/l			

V.	CHANGES FROM PREVIOUS PERMIT – 

No change from last reissuance.

Proposed permit limits for Oil and Grease and Total Suspended Solids are comparable to limits placed in permits held by existing similar commercial car wash facilities in the State of Mississippi.