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Wastewater Characteristics 2014

 

Wastewater Treatment Plant NPDES Discharge Limitations 

 

Parameter Daily Min. Daily Max. Weekly Avg. Max. Monthly Avg. Max.
Dissolved Oxygen (mg/l) 5.4      
Oil and Grease (mg/l   10    
pH (S.U.) 6.5 9    
TSS (mg/l)     34.2 22.8
CBOD (5-day mg/l)     28.5 19
NH3 Summer (mg/l)     2.4 1.6
NH3 Winter (mg/l)     15.3 10.2
Fecal Coliform (#/100 ml)     2000 1000

 

Wastewater Treatment Plant Design Data

 

Parameter Design mg/l Design lbs./day Annual Daily Avg. mg/l Annual Daily Avg. lbs./day Lbs. % of Design
TSS 200 16,680 170 7,539 45
CBOD 220 18,384 205 9,092 49
NH3 20 1,668 16.9 750 45

 

Influent 2014 (Daily Avg.)

 

Month

Flow (MGD)

TSS (mg/l)

TSS (lbs/day)

CBOD (mg/l)

CBOD (lbs/day)

NH3 (mg/l)

NH3 (lbs/day)

Jan 6.012 150 7521 174 8724 20.2 1013
Feb 6.316 151 7954 182 9587 18.4 969
Mar 5.506 167 7669 186 8541 17.3 794
Apr 7.338 134 8201 161 9853 10.2 624
May 5.614 156 7304 181 8475 17.4 815
Jun 5.367 166 7430 211 9445 17.3 774
Jul 4.666 173 6732 219 8522 19.8 771
Aug 4.220 191 6722 239 8411 21.5 757
Sep 4.187 197 6879 237 8276 21.1 737
Oct 3.991 202 6724 251 8355 23.5 782
Nov 3.956 194 6401 254 8380 24.0 792
Dec 5.011 165 6896 206 8609 19.8 827

 

Effluent 2014 (Daily Avg.)

 

Month

Flow (MGD)

TSS (mg/l)

TSS (lbs/day)

CBOD (mg/l)

CBOD (lbs/day)

NH3 (mg/l)

NH3 (lbs/day)

Fecal Coliform (#/100ml)

Jan 6.012 5 251 3 150 0.6 30  
Feb 6.316 5 263 4 211 0.56 29  
Mar 5.506 4 184 3 138 0.42 19  
Apr 7.338 5 306 4 245 0.13 8  
May 5.614 3 140 3 140 0.26 12 67
Jun 5.367 2 77 2 77 0.15 4 62
Jul 4.666 5 195 3 117 0.14 5 72
Aug 4.220 4 141 3 106 0.07 2 62
Sep 4.187 3 105 3 105 0.15 5 55
Oct 3.991 5 166 5 166 0.09 3 71
Nov 3.956 11 363 9 297 1.68 55  
Dec 5.011 7 293 6 251 0.33 14  

 

Effluent Metals 2014 (Daily Avg.)

 

Month

CN (mg/l)

Cd (ug/l)  Cr-T (ug/l) Cr-D (ug/l) Cu (ug/l Pb (ug/l)

(mg/l)

Zn (ug/l)

Hg (ng/l)

O&G (mg/l)

Jan AA AA AA AA AA AA 1.9 AA 1.5 AA
Feb AA AA AA AA AA AA 2.4 AA 3.6 AA
Mar AA AA AA AA AA AA 2.6 AA 2.5 AA
Apr AA AA AA AA AA AA 0.9 AA 2.1 AA
May AA AA AA AA 9.7 AA 4.0 42 3.5 AA
June AA AA AA AA 7.5 AA 2.8 41 2.6 AA
July AA AA AA AA 9.7 AA 3.4 35 4.8 AA
Aug AA AA AA AA 7.6 AA 3.3 45 2.6 AA
Sep AA AA AA AA 8.1 AA 4.2 40 2.4 AA
Oct AA AA AA AA 12.0 AA 4.4 74 4.5 AA
Nov AA AA AA AA 14.0 1.0 3.5 58 3.8 AA
Dec 0.01 AA AA AA 12.0 AA 3.4 60 8.6 AA

AA = Below Detection Limit