PERMIT RATIONALE FOR REISSUANCE
Golden POTW
Tishomingo County
Golden,, Mississippi
Water NPDES No. MS0050032
November 12, 2025

I.	CLASSIFICATION – NPDES Minor Municipal

II.	DESCRIPTION OF WASTEWATER – Municipal Wastewater

III.	DESCRIPTION OF WASTEWATER TREATMENT – Municipal wastewater is collected and treated by means of a conventional three-celled lagoon followed by disinfection.  No increase in flow is proposed within the application.  

IV.	RECEIVING WATERS – Bear Creek.  The receiving water is located within the Tennessee River Basin and is classified as Fish and Wildlife. This segment of Bear Creek, Waterbody ID# MS194E, does not appear on the current 2018 State of Mississippi 303(d) list of waterbodies nor on an established Total Maximum Daily Load (TMDL). This discharge should not further impair water quality.

At the point of discharge, the 7-day, 10-year minimum flow (7Q10) of the receiving stream is 17 cfs. The Instream Wastewater Concentration (IWC) at the point of the discharge is determined by the following calculation:

IWC = {(Qw)/(Qw + QR)} * 100
            Where:
            Qw = Design flow of the wastewater treatment facility 0.06 MGD or 0.09 cfs.  
            QR = Receiving stream 7Q10, 17 cfs.

IWC = {(0.09 cfs)/(0.09 cfs + 17 cfs)} * 100 = 0.54 %

V.	APPLICABLE GUIDELINES – 11 MS Admin Code Pt 6, Municipal Facility Guidelines (Technology), MS Water Quality Standards, Wasteload Allocation (WLA)

VI.	CHANGES TO PREVIOUS PERMIT – No changes from prior permit.

VII.	SUMMARY OF LIMITATIONS –

Parameter			Flow				Basis
Flow				0.06 MGD			Design
BOD5				30 mg/l			WLA	
BOD (Percent Removal)	65%, Minimum		Technology
E. coli				126 (#Col/100mL)		MS WQS 
	Oxygen, Dissolved		6 mg/l, Minimum		WLA
TSS				90 mg/l			Technology
TSS (Percent Removal)	65%, Minimum		Technology	
Chlorine, Total Residual	1 mg/l, Maximum		MS WQS
pH				6.0 – 9.0 SU			MS WQS
	NH3-N, Total			10 mg/l			WLA
Phosphorous, Total		Report, lbs/day		WLA
Nitrogen, Total		Report, lbs/day		WLA