PERMIT RATIONALE FOR REISSUANCE
Plaskolite South LLC
Desoto County
Water NPDES No. MS0042137
Date: March 25, 2025

I.	FACILITY INFORMATION

Facility Name:  Plaskolite South LLC
Facility Address:  10500 High Point Road 
 Olive Branch, MS  38654    
Olive Branch, 
Permit No.:  MS0042137
SIC:  2821
Permit Writer:  Samar Patel
EPD Branch:  Chemical Branch

II.	NATURE OF BUSINESS

Plaskolite South, LLC manufactures acrylic resins and sheets.

III.	EFFLUENT AND RECEIVING STREAM FLOW DATA

The Outfall 001 discharge consists of non-contact cooling water and storm water that is collected in a retention pond thence discharged.  The intermittent retention pond discharges are controlled through a valve that is manually opened.  The effluent flows into an unnamed tributary with a 7Q10 of 0 thence into Camp Creek.  Camp Creek is in the Yazoo River Basin. 

IV.	303(d) ISSUES

Camp Creek is not listed as an impaired water body on the Mississippi 2018 Section 303(d) List of Impaired Water Body.  Camp Creek has TMDLs for Biological Impairment due to Ammonia Toxicity, Total Nitrogen, Total Phosphorus and Organic Enrichment / Low Dissolved Oxygen.
Load allocations for nutrients and organic enrichment were given to the nine NPDES permits issued for the Camp Creek watershed; however, this TMDL did not assign any specific limits or load allocation for Plaskolite South. Based on their discharge type, they will not adversely affect Biological Impairment in Camp Creek. 

V.	TYPE OF WASTEWATER TREATMENT:

There is no wastewater treatment.

VI.	EPA APPLICABLE CATEGORICAL GUIDELINES

No categorical effluent guidelines apply to Plaskolite South.

VII.	DATA FROM APPLICATION FORM 2C

	Outfall 001

Pollutant	Maximum Daily Value	No. of Analyses	
BOD	<5 mg/L	1	
COD	34.0 mg/L	1	
TOC	18.4 mg/L	1	
TSS	32.0 mg/L	1	
Ammonia (as N)	<0.10 mg/L	1	
Temperature	27.0oC	11	
pH	7.65 s.u.	11	

VIII. 	WATER QUALITY LIMITATIONS BASED ON WASTELOAD ALLOCATION 

	No Wasteload Allocation required.

IX.	CATEGORICAL GUIDELINE LIMITATIONS CALCULATIONS

	Not Applicable.

X.	TOXICITY SCREENING

	Not Applicable.

XI.	PROPOSED FINAL LIMITATIONS 

	Outfall 001

Parameter	Water Quality Limitation	Present Permit Limit	Proposed Permit Limit	Basis*	Sampling Frequency	Sample 
Type	
	Avg.	Max.	Avg.	Max.	Avg.	Max.				
Flow	---	---	Report	Report	Report	Report	§122.44(d)	Twice/Quarter	Instantaneous	
Temperature	---	90oF	Report	90oF	Report	90oF	WQC	Twice/Quarter	Instantaneous	
* WQC = Water Quality Criteria

Flow and temperature shall be monitored instantaneously, pH through grab sample.  The permit limits for pH shall be 6.0 – 9.0 s.u. as stated in the State of Mississippi Water Quality Criteria, adopted August 23, 2007.  Temperature is measured to ensure that the non-contact cooling water that is discharged into the retention pond does not cause this outfall to exceed the state standard of 90oF.  

XII.	NARRATIVE 

The pH will continue to be monitored to demonstrate compliance with the current water quality criteria of 6.0 - 9.0 s.u.  A temperature limit of 90oF will remain in the permit per Mississippi’s Water Quality Criteria, which require water temperature not to exceed 90oF.