PRETREATMENT RATIONALE FOR MODIFICATION

Waste Management of Mississippi Inc,           Prairie Bluff Landfill and Recycling Center
Chickasaw County  
Houston, Mississippi  
Water II Branch  		
Agency Interest (AI) No.: 791  
Permit No.: MSP090940
SIC Code: 4953
June 4, 2020  
Permit Writer: Carter Cress 

I.	FACILITY INFORMATION

A.	Nature of Business: Municipal solid waste landfill.   

B.	Process Wastewater Description: Consists of landfill leachate and wash water from equipment washing operations.  

C.	Proposed Flowrate: Outfall 003: 0.100 MGD Daily Maximum 	

D.	Applicable Federal Guidelines: 40 CFR Part 403: General Pretreatment Regulations for Existing and New Sources of Pollution.   

II.	RECEIVING POTW INFORMATION

A.	POTW Name, AI No., and Permit No.: Tupelo POTW, 13422, MS0036111  

B.	POTW Design Flowrate: 10.5 MGD  

C.	POTW Treatment Type: Oxidation ditch  

D.	POTW Receiving Stream: Town Creek

E.	POTW Receiving Stream’s 7Q10 (Q7/10): 1.2 cfs = 0.78 MGD  

III.	    PERTINENT FLOWRATE AND LOADING DATA

A.	POTW 12-month Average Flowrate (QPOTW): 8.5 MGD.      

POTW Monthly Average flowrate values using 12 months of recently-available DMR data (MGD):
04/19	05/19	06/19	07/19	08/19	09/19	10/19	11/19	12/19	01/20	02/20	03/20	
9.4	8.1	6.8	8.1	7.5	5.5	6.1	7.6	10.2	12.1	10.5	9.6	

B.	Industrial Facilities Flowrate Data:
Facility 
(Permit No., AI No.)	Permitted Flow (Quarterly/Monthly/Daily Average)	Max. Quarterly/Monthly/Daily Average Value   
(Qw)*	
Waste Management of Mississippi Inc,           Prairie Bluff Landfill and Recycling Center
(MSP090940, 791)	0.100 MGD1	0.040916 MGD**	
R K Metals LLC
(MSP092008, 17866)	0.0075 MGD  	NODI=C4	
Renin US LLC, A Division of Renin Corporation
(MSP090372, 11051)	0.0763 MGD	0.014 MGD  	
Toyota Motor Manufacturing Mississippi Inc  
(MSP092192, 23113)	0.242 MGD2	0.242 MGD	
Sonoco Protective Solutions Inc
(MSP090739, 4104)	0.032 MGD	0.0215 MGD  	
Cooper Tire and Rubber Company
(MSP090763, 11536)	0.439 MGD2	0.439 MGD	
T and L Specialty Company Inc
(MSP090541, 1243)	0.004 MGD3	0.004 MGD	
Genlyte Thomas Group LLC
(MSP090285, 1202)	0.009 MGD	0.00022 MGD	
Total	0.9098 MGD	0.761636 MGD  	

*the Max. Quarterly/Monthly/Daily Average value listed on the DMRs from April 2019 – March 2020.      

**this is the Max. Monthly Maximum value listed on the DMRs.  

1 this is the proposed Daily Maximum flowrate permit limit.    

2 this facility is required to “Report” its Monthly Average; therefore, the Max. Monthly Average value is used.  

3 this facility is required to “Report” its Daily Maximum rather than an average value; therefore, the Max. Daily Maximum value is used.  

4 NODI=C is an EPA indicator code that means “no discharge.”  

C.	Current Maximum Permitted Loads (Xta):  
Parameter	Prairie Bluff
(lb/day)  	R K Metals
(lb/day)	Renin (lb/day)	Toyota (lb/day)	Sonoco (lb/day)	Cooper (lb/day)	T and L (lb/day)	Genlyte (lb/day)	Xtat (lb/day)	
Cd	---	Report 	0.032	0.038	---	---	---	0.001	0.071	
Cr	---	Report	0.095	1.41	---	---	---	0.011	1.516	
Cu	---	Report	0.19	0.88	Report	1.11	Report	0.005	2.175	
Pb	---	Report	0.064	0.34	---	---	---	0.0034	0.4074	
Ni	---	Report	0.095	2.81	---	---	---	0.011	2.916	
Ag	---	Report	0.15	0.75	---	---	---	0.004	0.904	
Zn	Report 	Report	0.32	1.88	Report	1.31	Report	0.075	3.585	
CN	---	Report	0.064	0.94	---	---	---	0.008	1.012	
TTO	---	Report	1.36	8.88	---	---	---	0.16	10.40	
pH (SU)	6.0 – 9.0 	6.0 – 9.5	6.0 – 9.5	6.0 – 10.0	6.0 – 9.5	6 – 9	6.0 – 9.0	5.5 – 9.5	---	

D.	Max. Average Discharge Value (Xt)*:  
Parameter	Prairie Bluff
(lb/day)	R K
(lb/day)	Renin (lb/day)	Toyota (lb/day)	Sonoco (lb/day)	Cooper (lb/day)	T and L (lb/day)	Genlyte (lb/day)	Xtt (lb/day)	
Cd	---	NODI=C1	NODI=B2	NODI=B	---	---	---	NODI=B	0	
Cr	---	NODI=C	0.0003	0.003	---	---	---	0.000022	0.003322	
Cu	---	NODI=C	0.0178	0.052	0.0058	0.13	0.0028	NODI=B	0.2084	
Pb	---	NODI=C	NODI=B	NODI=B	---	---	---	NODI=B	0	
Ni	---	NODI=C	0.0002	0.439	---	---	---	0.000028	0.439228	
Ag	---	NODI=C	NODI=B	NODI=B	---	---	---	NODI=B	0	
Zn	0.022	NODI=C	0.00112	0.297	0.0327	1.99	0.01387	0.00008	2.35677	
CN	---	NODI=C	NODI=B	NODI=B	---	---	---	0.000032	0.000032	
TTO	---	NODI=C	0.007	0.201	---	---	---	0.000002	0.208002	
pH (SU)	7.1 – 7.6 	NODI=C	6.7 – 7.1  	7.84 – 9.83  	6.7 – 9.1 	7.5 – 8 	6.1 – 8.9 	6.9 – 7.8 	---	

*the Max. Average discharge value listed on the DMRs from April 2019 – March 2020.    

1 NODI=C is an EPA indicator code that means “no discharge.”  

2 NODI=B is an EPA indicator code that means “below detect limit/no detect.”    

IV.	BACKGROUND/DOMESTIC LOADING CALCULATIONS  

Background Loading (BGL), lb/day = 8.34 x BGC (mg/L) x (QPOTW - QINDUSTRIAL)) (MGD)

BGC = Background concentration of domestic sewage.  Calculated from actual POTW data as shown in Appendix A or literature values from Appendix V of EPA’s Local Limits Development Guidance (EPA 833-R-04-002A, July 2004) for those pollutants with insufficient data.  

QINDUSTRIAL = QW1 + QW2 + …

where QW is the Max. Average flowrate from the DMRs over the last twelve months (April 2019 – March 2020).  Maximum daily flow data may be used when average data is not available.  

BGL (Cd) = 8.34*0.00024*(8.5 – 0.25622) = 	0.0165 lb/day
BGL (Cr) = 8.34*0.002*(8.5 – 0.25622) = 		0.138 lb/day
BGL (Cu) = 8.34*0.022*(8.5 – 0.72072) = 		1.43 lb/day
BGL (Pb) = 8.34*0.0014*(8.5 – 0.25622) = 		0.0963 lb/day
BGL (Ni) = 8.34*0.0019*(8.5 – 0.25622) = 		0.131 lb/day
BGL (Ag) = 8.34*0.0001*(8.5 – 0.25622) = 		0.00688 lb/day
BGL (Zn) = 8.34*0.076*(8.5 – 0.761636) = 		4.90 lb/day
BGL (CN) = 8.34*0.0026*(8.5 – 0.25622) = 		0.179 lb/day

V.	WATER QUALITY ANALYSIS

E.	Instream Wastewater Concentration

IWC, % = [QPOTW / (QPOTW + Q7/10)] x 100 = [8.5/(8.5 + 0.78)]*100 = 92 %

IWC > 1%; therefore, acute and chronic screening are developed.  

F.	Allowable Water Quality Criteria (AWQC) Headworks Loading Calculations

AWQC, lb/day = 8.34 x CCRITICAL (mg/L) x (Q7/10 + QPOTW, MGD) / (1 – RPOTW)

CCRITICAL = Critical Concentration; obtained from State of Mississippi Water Quality Criteria for Intrastate, Interstate, and Coastal Waters: Freshwater Acute and Chronic Values.  Adopted June 23, 2012.  

RPOTW = Removal efficiency, in decimal form, from actual POTW data (Appendix B) or from MDEQ-observed data for those pollutants with insufficient data.  

ACUTE SCREENING:   

AWQC (Cd) = 8.34*0.00103*(0.78 + 8.5)/(1 – 0.63) = 		0.215 lb/day
AWQC (Cr) = 8.34*0.323*(0.78 + 8.5)/(1 – 0.750) = 		100 lb/day
AWQC (Cu) = 8.34*0.0070*(0.78 + 8.5)/(1 – 0.927) = 		7.42 lb/day
AWQC (Pb) = 8.34*0.030*(0.78 + 8.5)/(1 – 0.827) = 		13.4 lb/day
AWQC (Ni) = 8.34*0.260*(0.78 + 8.5)/(1 – 0.590) = 		49.1 lb/day
AWQC (Ag) = 8.34*0.00098*(0.78 + 8.5)/(1 – 0.643) = 		0.212 lb/day
AWQC (Zn) = 8.34*0.065*(0.78 + 8.5)/(1 – 0.681) = 		15.8 lb/day
AWQC (CN) = 8.34*0.0220*(0.78 + 8.5)/(1 – 0.62) = 		4.48 lb/day

CHRONIC SCREENING:  

AWQC (Cd) = 8.34*0.00015*(0.78 + 8.5)/(1 – 0.63) = 		0.0314 lb/day
AWQC (Cr) = 8.34*0.042*(0.78 + 8.5)/(1 – 0.750) = 		13.0 lb/day
AWQC (Cu) = 8.34*0.0050*(0.78 + 8.5)/(1 – 0.927) = 		5.30 lb/day
AWQC (Pb) = 8.34*0.00118*(0.78 + 8.5)/(1 – 0.827) = 		0.528 lb/day
AWQC (Ni) = 8.34*0.029*(0.78 + 8.5)/(1 – 0.590) = 		5.47 lb/day
AWQC (Ag) = 8.34*NA*(0.78 + 8.5)/(1 – 0.643) = 			NA lb/day
AWQC (Zn) = 8.34*0.065*(0.78 + 8.5)/(1 – 0.681) = 		15.8 lb/day
AWQC (CN) = 8.34*0.0052*(0.78 + 8.5)/(1 – 0.62) = 		1.06 lb/day

NA = no critical concentration for chronic silver screening is available from either Mississippi or EPA guidelines.  

VI.	POTW INHIBITION ANALYSIS (HEADWORKS INHIBITION, HWI)

HWI, lb/day = 8.34 x QPOTW (MGD) x CINH (mg/L)

CINH = Activated Sludge Inhibition Levels, from EPA Guidance Manual on the Development and Implementation of Local Discharge Limitations Under the Pretreatment Program: Table 3-2 Activated Sludge Inhibition Levels.  For the silver parameter, the minimum reported inhibition threshold is utilized.  For all other parameters, 1.0 mg/L is used since this value is near the minimum side of the minimum reported range of inhibition threshold levels.  

HWI (Cd) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (Cr) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (Cu) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (Pb) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (Ni) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (Ag) = 8.34*8.5*0.25 = 	17.7 lb/day
HWI (Zn) = 8.34*8.5*1.0 = 		70.9 lb/day
HWI (CN) = 8.34*8.5*1.0 = 		70.9 lb/day

VII.	LIMITING CASE (LC) SUMMARY TABLE 

Parameter	HWI (lb/day)	Acute AWQC (lb/day)	Chronic AWQC (lb/day)	LC*  (lb/day)	BGL (lb/day)	Xtat (lb/day)	Xtt (lb/day)	BGL < LC (Pass/Fail)	Xtat < LC (Pass/Fail)	Xtt < LC (Pass/Fail)	
				Acute	Chronic							
Cadmium (Cd)	70.9	0.215	0.0314	0.215	0.0314	0.0165	0.071	0	PASS	FAIL	PASS	
Chromium (Cr)	70.9	100	13.0	70.9	13.0	0.138	1.516	0.003322	PASS	PASS	PASS	
Copper (Cu)	70.9	7.42	5.30	7.42	5.30	1.43	2.175	0.2084	PASS	PASS	PASS	
Lead (Pb)	70.9	13.4	0.528	13.4	0.528	0.0963	0.4074	0	PASS	PASS	PASS	
Nickel (Ni)	70.9	49.1	5.47	49.1	5.47	0.131	2.916	0.439228	PASS	PASS	PASS	
Silver (Ag)	17.7	0.212	NA	0.212	NA	0.00688	0.904	0	PASS	FAIL	PASS	
Zinc (Zn)	70.9	15.8	15.8	15.8	15.8	4.90	3.585	2.35677	PASS	PASS	PASS	
Cyanide (CN)	70.9	4.48	1.06	4.48	1.06	0.179	1.012	0.000032	PASS	PASS	PASS	

*LC is the smallest value of the two quantities HWI and AWQC.  

NA = no critical concentration for chronic silver screening is available from either Mississippi or EPA guidelines.  

VIII.	
DEVELOPMENT OF ALLOWABLE CONCENTRATIONS

The remaining industrial wasteload allocation will be used in calculating allowable acute and chronic concentrations using the “Industrial User (IU) Contributory Flow” method as described in EPA’s Local Limits Development Guidance (EPA 833-R-04-002A, July 2004).

PAI, lb/day = (LC, lb/day – BGL, lb/day) x (QI, MGD / QT, MGD)

CALLOW, mg/L = (PAI, lb/day) / (8.34 x QI, MGD)

Where,
PAI 	=	Permit allocation for indirect discharger
CALLOW=	Allowable concentration for indirect discharger
QI	=	Applicant’s permitted/requested process discharge 
QT	=	Total industrial contributory flow for pertinent pollutants
LC	=	Limiting case loading
BGL	=	Background/domestic loading

QT (MGD) Table

Facility	Cd	Cr	Cu	Pb	Ni	Ag	Zn	CN	
Prairie Bluff	0.100	0.100	0.100	0.100	0.100	0.100	0.100	0.100	
R K Metals	0.0075	0.0075	0.0075	0.0075	0.0075	0.0075	0.0075	0.0075	
Renin 	0.0763	0.0763	0.0763	0.0763	0.0763	0.0763	0.0763	0.0763	
Toyota	0.242	0.242	0.242	0.242	0.242	0.242	0.242	0.242	
Sonoco	---	---	0.032	---	---	---	0.032	---	
Cooper	---	---	0.439	---	---	---	0.439	---	
T and L	---	---	0.004	---	---	---	0.004	---	
Genlyte  	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	
Total	0.4348	0.4348	0.9098	0.4348	0.4348	0.4348	0.9098	0.4348	

ACUTE:  

PAI (Cd) = (0.215 – 0.0165)*(0.100/0.4348) = 	0.0457 lb/day
CALLOW (Cd) = 0.0457/(8.34*0.100) = 		0.0548 mg/L

PAI (Cr) = (70.9 – 0.138)*(0.100/0.4348) = 		16.3 lb/day
CALLOW (Cr) = 16.3/(8.34*0.100) = 			19.5 mg/L

PAI (Cu) = (7.42 – 1.43)*(0.100/0.9098) = 		0.658 lb/day
CALLOW (Cu) = 0.658/(8.34*0.100) = 			0.789 mg/L

PAI (Pb) = (13.4 – 0.0963)*(0.100/0.4348) = 		3.06 lb/day
CALLOW (Pb) = 3.06/(8.34*0.100) = 			3.67 mg/L

PAI (Ni) = (49.1 – 0.131)*(0.100/0.4348) = 		11.3 lb/day
CALLOW (Ni) = 11.3/(8.34*0.100) = 			13.5 mg/L

PAI (Ag) = (0.212 – 0.00688)*(0.100/0.4348) = 	0.0472 lb/day
CALLOW (Ag) = 0.0472/(8.34*0.100) = 		0.0566 mg/L

PAI (Zn) = (15.8 – 4.90)*(0.100/0.9098) = 		1.20 lb/day
CALLOW (Zn) = 1.20/(8.34*0.100) = 			1.44 mg/L

PAI (CN) = (4.48 – 0.179)*(0.100/0.4348) = 		0.989 lb/day
CALLOW (CN) = 0.989/(8.34*0.100) = 		1.19 mg/L

CHRONIC:  

PAI (Cd) = (0.0314 – 0.0165)*(0.100/0.4348) = 	0.00343 lb/day
CALLOW (Cd) = 0.00343/(8.34*0.100) = 		0.00411 mg/L

PAI (Cr) = (13.0 – 0.138)*(0.100/0.4348) = 		2.96 lb/day
CALLOW (Cr) = 2.96/(8.34*0.100) = 			3.55 mg/L

PAI (Cu) = (5.30 – 1.43)*(0.100/0.9098) = 		0.425 lb/day
CALLOW (Cu) = 0.425/(8.34*0.100) = 			0.510 mg/L

PAI (Pb) = (0.528 – 0.0963)*(0.100/0.4348) = 	0.0993 lb/day
CALLOW (Pb) = 0.0993/(8.34*0.100) = 		0.119 mg/L

PAI (Ni) = (5.47 – 0.131)*(0.100/0.4348) = 		1.23 lb/day
CALLOW (Ni) = 1.23/(8.34*0.100) = 			1.47 mg/L

PAI (Ag) = (NA – 0.00688)*(0.100/0.4348) = 	NA lb/day
CALLOW (Ag) = NA/(8.34*0.100) = 			NA mg/L  

PAI (Zn) = (15.8 – 4.90)*(0.100/0.9098) = 		1.20 lb/day
CALLOW (Zn) = 1.20/(8.34*0.100) = 			1.44 mg/L

PAI (CN) = (1.06 – 0.179)*(0.100/0.4348) = 		0.203 lb/day
CALLOW (CN) = 0.203/(8.34*0.100) = 		0.243 mg/L

NA = no critical concentration for chronic silver screening is available from either Mississippi or EPA guidelines.

IX.	PROPOSED PERMIT LIMTATIONS – OUTFALL 003: TUPELO POTW    
Parameter	
Allowable Loads and Concentrations

	Current Permit Limits	Proposed Permit Limits	Proposed Sampling Frequency 	Sample Type	Basis of Decision1	
	Acute
(lb/day)
	Chronic
(lb/day)
	Acute
(mg/L)
	Chronic
(mg/L)
	Max. (lb/day)	Avg. (lb/day)	Max. (lb/day)	Avg. 
(lb/day)				
Ammonia Nitrogen	---	---	---	---	Report	Report	Report	Report	Twice per Month	Grab	CPL	
BOD5	---	---	---	---	Report	Report	Report	Report	Twice per Month	Grab	CPL	
Oil and Grease	---	---	---	---	Report	Report	Report	Report	Twice per Month	Grab	CPL	
Total Suspended Solids	---	---	---	---	Report	Report	Report	Report	Twice per Month	Grab	CPL	
Zinc (Zn)	1.20	1.20	1.44	1.44	Report	Report	Report	Report	Twice per Month	Grab	CPL	

Parameter	Current Permit Limits	Proposed Permit Limits	Proposed Sampling Frequency	Sample Type	Basis of Decision1	
pH	6.0 – 9.0 SU	6.0 – 9.0 SU  	Twice per Month	Grab 	CPL	
									
Parameter	Current Permit Limits	Proposed Permit Limits	Proposed Sampling Frequency	Sample Type	Basis of Decision1  	
Flow	0.040 MGD Monthly Max.	0.100 MGD Daily Max.	Upon each Occurrence	Batch	BTJ	
						
1 Basis of Decision: CPL = Current Permit Limitation; BTJ = Best Technical Judgment.  

X.	STATEMENT OF BASIS (narrative)

A supplemental letter was provided with the Form 2-P permit application requesting to modify the present permit by increasing the maximum flowrate to the Tupelo POTW, identified as “Outfall 003” in the permit, from 0.040 MGD to 0.100 MGD.  An e-mail dated April 21, 2020 from a representative of the Tupelo POTW was also provided.  The representative will allow the facility to discharge up to 0.100 MGD. 

Therefore, the permitted maximum flowrate has been increased for Outfall 003 from 0.040 MGD to 0.100 MGD.  

The current permit authorizes two other POTWs as potential destinations for the facility’s process wastewater:  Columbus, City of, Reynolds R. Ridgley Wastewater Treatment Plant and Greenwood POTW, which are identified as “Outfall 001” and “Outfall 002,” respectively.  Since no changes are proposed for discharge limits to these POTWs, they are not discussed in this rationale.     

On June 2, 2020, during a phone conversation, Mr. David Cole the Tupelo POTW superintendent indicated that he and his colleagues agree that the proposed permit modification that does not include the city sewer use ordinance is acceptable.        

APPENDIX A

OUTFALL 003: TUPELO POTW    

BACKGROUND CONCENTRATION OF DOMESTIC SEWAGE*

Cadmium (Cd):		BGC = 0.00024 mg/L
Chromium (Cr):		BGC = 0.002 mg/L
Copper (Cu):		BGC = 0.022 mg/L
Lead (Pb):			BGC = 0.0014 mg/L
Nickel (Ni):			BGC = 0.0019 mg/L
Silver (Ag):			BGC = 0.0001 mg/L
Zinc (Zn):			BGC = 0.076 mg/L
Cyanide (CN):		BGC = 0.0026 mg/L

*These values were obtained from the eight tables that follow in the subsequent pages.  BGC was calculated by summing the domestic concentrations of the individual samples and then dividing this amount by the number of these samples.  

	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.00005
0.0026	

6.2
No data
No data	

6.1
0.00005
0.0025	

6.1
0.00005
0.0025	

8.5
No data
No data	

8.5
0.00005
0.0035	

9
0.00005
0.0038	

9
0.00005
0.0038	

9.4
0.0016
0.13	

9.4
0.0003
0.024	

9.6
0.00005
0.0040	

9.6
0.00005
0.0040	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
NODI=B
NODI=B	

0.244
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.00005	No data	0.00005	0.00005	No data	0.00005	0.00005	0.00005	0.0017	0.0003	0.00005	0.00005	
DOMESTIC LOAD, lb/day:	0.0026	No data	0.0025	0.0025	No data	0.0035	0.0038	0.0038	0.13	0.024	0.0040	0.0040	
DATA FOR CADMIUM (Cd) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Cadmium (Cd) = BGC = 0.00024 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.001
0.052	

6.2
0.001
0.052	

6.1
0.001
0.051	

6.1
0.004
0.20	

8.5
0.002
0.14	

8.5
0.001
0.071	

9
0.002
0.15	

9
0.007
0.53	

9.4
0.001
0.078	

9.4
0.002
0.16	

9.6
0.001
0.080	

9.6
0.001
0.080	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
NODI=B
NODI=B	

0.244
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.236
0.001
0.002	

0.236
0.001
0.002	

0.206
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
0.014
0.000019	

0.00017
0.014
0.000019	

0.00017
0.014
0.000019	

0.00017
0.014
0.000019	

0.00015
0.007
0.00001	

0.00015
0.007
0.00001	

0.00013
0.016
0.000023	

0.00013
0.016
0.000023	

0.00017
0.013
0.000018	

0.00017
0.013
0.000018	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.001	0.001	0.001	0.004	0.002	0.001	0.002	0.007	0.001	0.002	0.001	0.001	
DOMESTIC LOAD, lb/day:	0.051981	0.051981	0.050981	0.199981	0.13799	0.06899	0.149977	0.529977	0.077982	0.159982	0.080	0.080	
DATA FOR CHROMIUM (Cr) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Chromium (Cr) = BGC = 0.002 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.0299
1.55	

6.2
0.0277
1.43	

6.1
0.0243
1.24	

6.1
0.0299
1.52	

8.5
0.0191
1.35	

8.5
0.0144
1.02	

9
0.0225
1.69	

9
0.0307
2.30	

9.4
0.0200
1.57	

9.4
0.0116
0.91	

9.6
0.0181
1.45	

9.6
0.0245
1.96	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
0.005
0.0003	

0.007
0.005
0.0003	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
0.005
0.0003	

0.0006
0.005
0.0003	

0.003
0.012
0.0003	

0.003
0.012
0.0003	

0.01
0.004
0.0001	

0.01
0.004
0.0001	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
0.02
0.039	

0.244
0.02
0.039	

0.23
0.015
0.033	

0.23
0.015
0.033	

0.236
0.012
0.022	

0.236
0.012
0.022	

0.206
0.014
0.028	

0.206
0.014
0.028	

0.215
0.022
0.043	

0.215
0.022
0.043	

0.218
0.012
0.021	

0.218
0.012
0.021	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
0.011
0.0006	

0.007
0.011
0.0006	

0.0147
0.042
0.0051	

0.0147
0.042
0.0051	

0.0147
0.042
0.0051	

0.0147
0.042
0.0051	

0.0147
0.042
0.0051	

0.0147
0.042
0.0051	

0.0208
0.01
0.0079	

0.0208
0.01
0.0079	

0.0208
0.01
0.0079	

0.0208
0.01
0.0079	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
0.1
0.16	

0.188
0.1
0.16	

0.214
0.04
0.1	

0.214
0.04
0.1	

0.253
0.13
0.29	

0.253
0.13
0.29	

NODI=F
NODI=F
NODI=F	

NODI=F
NODI=F
NODI=F	

0.189
0.04
0.07	

0.189
0.04
0.07	

0.164
0.04
0.04	

0.164
0.04
0.04	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
0.076
0.00253	

0.0012
0.076
0.00253	

0.0015
0.08
0.00267	

0.0015
0.08
0.00267	

0.0015
0.102
0.00341	

0.0015
0.102
0.00341	

0.0012
0.088
0.00294	

0.0012
0.088
0.00294	

0.0017
0.093
0.0031	

0.0017
0.093
0.0031	

0.0017
0.088
0.00295	

0.0017
0.088
0.00295	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
0.005
0.000007	

0.00013
0.005
0.000007	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.75263	5.75263	5.63636	5.63636	7.98765	7.98765	8.77737	8.77737	8.97033	8.97033	9.18533	9.18533	
DOMESTIC CONC., mg/L:	0.028	0.026	0.023	0.029	0.015	0.011	0.023	0.031	0.019	0.011	0.018	0.025	
DOMESTIC LOAD, lb/day:	1.34757	1.22757	1.09923	1.37923	1.02949	0.69949	1.653653	2.263653	1.4457	0.7857	1.37805	1.88805	
DATA FOR COPPER (Cu) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Copper (Cu) = BGC = 0.022 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.0010
0.052	

6.2
0.0012
0.062	

6.1
0.0010
0.051	

6.1
0.0009
0.046	

8.5
0.0009
0.064	

8.5
0.00025
0.018	

9
0.0013
0.098	

9
0.0037
0.28	

9.4
0.0028
0.22	

9.4
0.0014
0.11	

9.6
0.0010
0.080	

9.6
0.0007
0.056	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
NODI=B
NODI=B	

0.244
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.0010	0.0012	0.0010	0.0009	0.0009	0.0003	0.0013	0.0038	0.0029	0.0014	0.0010	0.0007	
DOMESTIC LOAD, lb/day:	0.052	0.062	0.051	0.046	0.064	0.018	0.098	0.28	0.22	0.11	0.080	0.056	
DATA FOR LEAD (Pb) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Lead (Pb) = BGC = 0.0014 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.0055
0.28	

6.2
0.0044
0.23	

6.1
No data
No data	

6.1
0.0047
0.24	

8.5
0.0045
0.32	

8.5
0.0027
0.19	

9
0.0044
0.33	

9
0.0054
0.41	

9.4
0.0045
0.35	

9.4
0.0033
0.26	

9.6
0.0087
0.70	

9.6
0.0024
0.19	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
0.137
0.271	

0.244
0.137
0.271	

0.23
0.141
0.277	

0.23
0.141
0.277	

0.236
0.172
0.328	

0.236
0.172
0.328	

0.206
0.204
0.396	

0.206
0.204
0.396	

0.215
0.201
0.402	

0.215
0.201
0.402	

0.218
0.163
0.297	

0.218
0.163
0.297	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
0.009
0.000013	

0.00017
0.009
0.000013	

0.00017
0.013
0.000019	

0.00017
0.013
0.000019	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00017
0.0006
0.000009	

0.00017
0.0006
0.000009	

0.00017
0.009
0.000013	

0.00017
0.009
0.000013	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.0002	No data	No data	No data	No data	No data	No data	0.0002	No data	No data	0.0052	No data	
DOMESTIC LOAD, lb/day:	0.008987	< 0	No data	< 0	< 0	< 0	< 0	0.014	< 0	< 0	0.402987	< 0	
DATA FOR NICKEL (Ni) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Nickel (Ni) = BGC = 0.0019 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.0001
0.0052	

6.2
0.0001
0.0052	

6.1
0.00005
0.0025	

6.1
0.0004
0.020	

8.5
0.0001
0.0071	

8.5
0.0001
0.0071	

9
0.0002
0.015	

9
0.0001
0.0075	

9.4
0.0001
0.0078	

9.4
0.0001
0.0078	

9.6
0.0001
0.0080	

9.6
0.00005
0.0040	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
NODI=B
NODI=B	

0.244
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.23
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.206
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.0001	0.0001	0.00005	0.0004	0.0001	0.0001	0.0002	0.0001	0.0001	0.0001	0.0001	0.00005	
DOMESTIC LOAD, lb/day:	0.0052	0.0052	0.0025	0.020	0.0071	0.0071	0.015	0.0075	0.0078	0.0078	0.0080	0.0040	
DATA FOR SILVER (Ag) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Silver (Ag) = BGC = 0.0001 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.102
5.27	

6.2
0.112
5.79	

6.1
0.079
4.02	

6.1
0.107
5.44	

8.5
0.047
3.33	

8.5
0.033
2.34	

9
0.086
6.45	

9
0.073
5.48	

9.4
0.060
4.70	

9.4
0.051
4.00	

9.6
0.069
5.52	

9.6
0.071
5.68	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
0.006
0.0004	

0.007
0.006
0.0004	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
0.042
0.0019	

0.0006
0.042
0.0019	

0.003
0.016
0.0003	

0.003
0.016
0.0003	

0.01
0.007
0.0001	

0.01
0.007
0.0001	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
0.097
0.192	

0.244
0.097
0.192	

0.23
0.104
0.206	

0.23
0.104
0.206	

0.236
0.116
0.221	

0.236
0.116
0.221	

0.206
0.104
0.202	

0.206
0.104
0.202	

0.215
0.121
0.24	

0.215
0.121
0.24	

0.218
0.107
0.194	

0.218
0.107
0.194	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
0.03
0.0013	

0.007
0.03
0.0013	

0.0147
0.091
0.0111	

0.0147
0.091
0.0111	

0.0147
0.091
0.0111	

0.0147
0.091
0.0111	

0.0147
0.091
0.0111	

0.0147
0.091
0.0111	

0.0208
0.061
0.0079	

0.0208
0.061
0.0079	

0.0208
0.061
0.0079	

0.0208
0.061
0.0079	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
0.44
0.71	

0.188
0.44
0.71	

0.214
0.13
0.24	

0.214
0.13
0.24	

0.253
5.76
12.41	

0.253
5.76
12.41	

NODI=F
NODI=F
NODI=F	

NODI=F
NODI=F
NODI=F	

0.189
0.5
0.8	

0.189
0.5
0.8	

0.164
0.24
0.18	

0.164
0.24
0.18	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
0.17
0.00565	

0.0012
0.17
0.00565	

0.0015
0.124
0.00412	

0.0015
0.124
0.00412	

0.0015
0.128
0.00425	

0.0015
0.128
0.00425	

0.0012
0.266
0.00889	

0.0012
0.266
0.00889	

0.0017
0.329
0.01097	

0.0017
0.329
0.01097	

0.0017
0.092
0.00305	

0.0017
0.092
0.00305	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
0.048
0.000068	

0.00017
0.048
0.000068	

0.00017
0.014
0.000019	

0.00017
0.014
0.000019	

0.00015
0.059
0.000083	

0.00015
0.059
0.000083	

0.00013
0.024
0.000034	

0.00013
0.024
0.000034	

0.00017
0.099
0.000139	

0.00017
0.099
0.000139	

0.00017
0.036
0.00005	

0.00017
0.036
0.00005	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.75263	5.75263	5.63636	5.63636	7.98765	7.98765	8.77737	8.77737	8.97033	8.97033	9.18533	9.18533	
DOMESTIC CONC., mg/L:	0.091	0.10	0.076	0.11	No data	No data	0.085	0.072	0.049	0.039	0.067	0.069	
DOMESTIC LOAD, lb/day:	4.360582	4.880582	3.558761	4.978761	< 0	< 0	6.226076	5.256076	3.640691	2.940691	5.1349	5.2949	
DATA FOR ZINC (Zn) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Zinc (Zn) = BGC = 0.076 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	
Tupelo POTW

Flow*, MGD:
Conc., mg/L:
Load, lb/day:	

6.2
0.0025
0.13	

6.2
0.0025
0.13	

6.1
0.0025
0.13	

6.1
0.0025
0.13	

8.5
0.0025
0.18	

8.5
0.0025
0.18	

9
0.0025
0.19	

9
0.0025
0.19	

9.4
0.0025
0.20	

9.4
0.0025
0.20	

9.6
No data
No data	

9.6
0.0025
0.20	
Renin US LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.00327
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.007
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.0006
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.003
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	

0.01
NODI=B
NODI=B	
Toyota Motor Manufacturing 

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.244
NODI=B
NODI=B	

0.244
NODI=B
NODI=B	

0.23
0.001
0.001	

0.23
0.001
0.001	

0.236
NODI=B
NODI=B	

0.236
NODI=B
NODI=B	

0.206
0.002
0.003	

0.206
0.002
0.003	

0.215
NODI=B
NODI=B	

0.215
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	

0.218
NODI=B
NODI=B	
Sonoco Protective Solutions Inc

Flow*, MGD:
Conc.*, mg/L:  
Load*, lb/day:	

0.007
---
---	

0.007
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0147
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	

0.0208
---
---	
The Cooper Tire Company

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.188
---
---	

0.188
---
---	

0.214
---
---	

0.214
---
---	

0.253
---
---	

0.253
---
---	

NODI=F
---
---	

NODI=F
---
---	

0.189
---
---	

0.189
---
---	

0.164
---
---	

0.164
---
---	
T and L Specialty Company Inc

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.0012
---
---	

0.0012
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0015
---
---	

0.0012
---
---	

0.0012
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	

0.0017
---
---	
Genlyte Thomas Group LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00015
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00013
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	

0.00017
NODI=B
NODI=B	
R K Metals LLC

Flow*, MGD:
Conc.*, mg/L:
Load*, lb/day:  	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	

NODI=C
NODI=C
NODI=C	
DOMESTIC FLOW, MGD:	5.94883	5.94883	5.86656	5.86656	8.25685	8.25685	8.79327	8.79327	9.18183	9.18183	9.37183	9.37183	
DOMESTIC CONC., mg/L:	0.0026	0.0026	0.0026	0.0026	0.0026	0.0026	0.0026	0.0026	0.0026	0.0026	No data	0.0026	
DOMESTIC LOAD, lb/day:	0.13	0.13	0.129	0.129	0.18	0.18	0.187	0.187	0.20	0.20	No data	0.20	
DATA FOR CYANIDE (CN) BACKGROUND/DOMESTIC CONCENTRATION

Average Domestic Concentration for Cyanide (CN) = BGC = 0.0026 mg/L 

*These values are the Averages listed on the DMRs.  Average values are preferred over Maximum values because they present a more representative model of the facility’s typical effluent.  
APPENDIX B

OUTFALL 003 – Tupelo POTW  

REMOVAL EFFICIENCIES
[mg/L]	09/13/18	09/20/18	10/04/18	10/18/18	11/08/18	11/15/18	12/13/18	12/20/18	01/17/19	01/24/19	02/07/19	02/14/19	Removal Efficiency1	
Cd Inf.	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.0016	0.0003	0.00005	0.00005	63 %*	
Cd Eff.	0.00005	0.0012	0.00005	0.00005	0.0001	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005		
Cr Inf.	0.001	0.001	0.001	0.004	0.002	0.001	0.002	0.007	0.001	0.002	0.001	0.001	75.0 %	
Cr Eff.	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005		
Cu Inf.	0.0299	0.0277	0.0243	0.0299	0.0191	0.0144	0.0225	0.0307	0.0200	0.0116	0.0181	0.0245	92.7 %	
Cu Eff.	0.0017	0.0016	0.0014	0.0010	0.0008	0.0011	0.0010	0.0011	0.0008	0.0020	0.0034	0.0040		
Pb Inf.	0.0010	0.0012	0.0010	0.0009	0.0009	0.00025	0.0013	0.0037	0.0028	0.0014	0.0010	0.0007	82.7 %	
Pb Eff.	0.00025	0..00025	0.00025	0.00025	0.00025	0.00025	0.00025	0.00025	0.00025	0.00025	0.00025	0.00025		
Ni Inf.	0.0055	0.0044	0.0024	0.0047	0.0045	0.0027	0.0044	0.0054	0.0045	0.0033	0.0087	0.0024	59.0 %	
Ni Eff.	0.0026	0.0029	0.0035	0.0022	0.0014	0.0012	0.0011	0.0014	0.0018	0.0018	0.0023	0.0020		
Ag Inf.	0.0001	0.0001	0.00005	0.0004	0.0001	0.0001	0.0002	0.0001	0.0001	0.0001	0.0001	0.00005	64.3 %	
Ag Eff.	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005	0.00005		
Zn Inf.	0.102	0.112	0.079	0.107	0.047	0.033	0.086	0.073	0.060	0.051	0.069	0.071	68.1 %	
Zn Eff.	0.043	0.047	0.037	0.033	0.010	0.010	0.010	0.010	0.010	0.025	0.025	0.024		
CN Inf.	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	62 %*	
CN Eff.	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.0025	0.006	0.0025		

1 Removal Efficiency = [(<inf.> - <eff.>)/<inf.>]*100, where <inf.> is the average influent value and <eff.> is the average effluent value.  

Yellow-shaded values were excluded because the influent > effluent for the same sample date.  

Blue values were used in “non-detect” results obtained from the POTW bench sheets where the MQL (Method Quantitation Limit) was then divided by 2 to obtain the blue value.  

*MDEQ-observed study removal efficiency for activated sludge systems was used due to inadequate data from the POTW.  An oxidation ditch is a type of activated sludge system.  
ADEQUACY OF TREATMENT

Date:					June 4, 2020            
Project Manager:			Carter Cress
Proposed Site:				Waste Management of Mississippi Inc.
					Prairie Bluff Landfill and Recycling Center  
					Pretreatment Permit No. MSP090940  
					Chickasaw County  
Address:				1649 Highway 15 North
					Houston, MS  38851  

Proposed Hydraulic Loading:	0.100 MGD (increase of 0.060 MGD from current limit of 0.040 MGD)
Proposed Organic Loading:	146.13 mg/L (long-term avg..; from permit application); 
8.34*146.13 mg/L*0.060 MGD = 73 lb/day (avg.) 

Tupelo POTW, NPDES Permit# MS0036111, AI# 13422
Permitted Flow:	10.5 MGD avg.
12 Months Flow:	12.1 MGD maximum avg. value (DMR data from April 2019 – March 2020)
12 Months BOD5: 	11,054 lb/day maximum monthly avg. influent (DMR data from April 2019 – March 2020)

Evaluation of Flow
10.5 MGD permitted – 12.1 MGD actual = -1.6 MGD available vs. 0.060 MGD proposed
Although there appears to be no flow capacity, representatives of the POTW indicated that it was due to heavy rainfall during the period of time reviewed.  Also, according to a representative of the Tupelo POTW, when the leachate wastewater from the landfill is hauled to the POTW the wastewater is not released immediately into the treatment system but instead is contained onsite and the POTW can control the release of the wastewater into the treatment system. 

Evaluation of BOD5
Permitted flow 10,500,000 gpd/(100 gallons/person/day) = 105,000 population equivalency
105,000*0.17 lb BOD/person/day = 17,850 lb/day BOD capacity
17,850 lb/day available – 11,054 lb/day (avg. POTW influent) = 6,796 lb/day
6,796 lb/day available vs. 73 lb/day proposed