PUBLIC NOTICE COPY

PERMIT RATIONALE FOR REISSUANCE
Jaxon Energy LLC, Jaxon Energy Processing Plant
Water NPDES No. MSS062171
May 2026
Samar Patel, Water I Branch 

I.	FACILITY INFORMATION

Facility Address:  455 Industrial Drive, Jackson, MS 39209
Facility County: Hinds 
SIC:  2992

II.	NATURE OF BUSINESS

Jaxon Energy is operating as a small hydrotreating plant that upgrades certain stranded vacuum gas oils (VGO) into certified, on-road diesel by removing unwanted metals and contaminants and saturating olefins and aromatics to produce a stable, oxidation resistant product that meets the required fuel specifications.  Process wastewater will be separated and recycled back into the process.  Any excess wastewater is sent to storage and transported to a qualified off-site treatment facility.  This permit only allows for the discharge of storm water through Outfalls 001 and 002 to Town Creek.  

III.	EFFLUENT AND RECEIVING STREAM FLOW DATA

Outfall 001 – Discharge includes storm water sheet flow from the impervious concrete covered areas and storm water from the process areas. Process area storm water is sloped to drains going to the oil/water separator.  Drainage from the oil/water separator can be collected if any sheen is present.  The outfall drains to a city storm inlet, to an existing city ditch, and eventually into Town Creek.  

Outfall 002 – Discharge includes storm water sheet flow from the truck loading area, northern tank farm’s concrete secondary containment area, parking lot area, and grassy area north of the office building, which is approximately 240,913 square feet.  The outfall drains into an existing city ditch and thence to Town Creek. 

IV.	TOTAL DAILY MAXIMUM LOAD (TMDL) AND 303(d) ISSUES

Town Creek in Hinds County is not listed on the Mississippi 2024 Section 303(d) List of Impaired Water Bodies. There is no applicable TMDL to the facility at their point of discharge. 

I.	DATA FROM APPLICATION FORM 2F                                                                                                                                                                                                                              Outfall 001                                                                                                                           

Parameter	Maximum Daily Value	No. of Analyses	
Total Organ Carbon (TOC)	99.2 mg/L	10	
pH	6.2 SU – 7.2 SU	10	
Oil & Grease	4.8 mg/L	10	

Outfall 002                                                                                                                           

Parameter	Maximum Daily Value	No. of Analyses	
Total Organ Carbon (TOC)	99 mg/L	10	
pH	6.1 SU – 7.2 SU	10	
Oil & Grease	6.9 mg/L	10	

II.	EPA APPLICABLE CATEGORICAL GUIDELINES

40 CFR Part 419 – Petroleum Refining Point Source Category – Contaminated storm water is regulated under this category (see section VI of this rationale for permit limits).

VII.	PROPOSED FINAL LIMITATIONS 

Maximum Permit Limitations

Outfall	Parameter	Categorical Limitation	Current Permit Limitation	Proposed Permit Limitation	Basis	Sample Type	
MSS062171-001	Oil and Grease	15 mg/L	15 mg/l	15 mg/L	CBEL	Grab	
	TOC	110 mg/L	110 mg/l	110 mg/L	CBEL	Grab	
	pH (min.)	6.0 s.u.	6.0 s.u.	6.0 s.u.	WQS	Grab	
MSS062171-002	Oil and Grease	15 mg/L	15 mg/l	15 mg/L	CBEL	Grab	
	TOC	110 mg/L	110 mg/l	110 mg/L	CBEL	Grab	
	pH (min.)	6.0 s.u.	6.0 s.u.	6.0 s.u.	WQS	Grab	

Average Permit Limitations

Outfall	Parameter	Categorical Limitation	Current Permit Limitation	Proposed Permit Limitation	Basis	Sample Type	
MSS062171-001	Oil and Grease	--	R, mg/L	R, mg/L	EJ	Grab	
	TOC	--	R, mg/L	R, mg/L	EJ	Grab	
	pH (max.)	9.0 s.u.	9.0 s.u.	9.0 s.u.	WQS	Grab	
MSS062171-002	Oil and Grease	--	R, mg/L	R, mg/L	EJ	Grab	
	TOC	--	R, mg/L	R, mg/L	EJ	Grab	
	pH (max.)	9.0 s.u.	9.0 s.u.	9.0 s.u.	WQS	Grab	
1R = Report only, WQS = water quality standards, CBEL = categorical based effluent limitation, EJ = Engineering Judgment,

The monthly grab sampling shall be performed and submitted on monthly DMRs for both the outfalls.