City of Fairfield, Ohio
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City of Fairfield, Ohio

Wastewater Characteristics 2016

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
E. coli (#/100 ml)     284 126

 

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 2016 (Daily Avg.)

 

Month

Flow (MGD)

TSS (mg/l)

TSS (lbs/day)

CBOD (mg/l)

CBOD (lbs/day)

NH3 (mg/l)

NH3 (lbs/day)

Jan 5.147 175 7512 250 10731 19.1 820
Feb 6.810 135 7667 192 10904 13.5 767
Mar 6.266 135 7055 189 9825 14.3 747
Apr 5.454 118 5367 187 8506 19.3 878
May 4.863 144 5840 214 8679 19.6 795
Jun 4.237 187 6608 275 9718 20.5 724
Jul 4.014 223 7465 291 9742 22.1 740
Aug 4.210 218 7654 272 9550 22.6 794
Sep 4.416 197 7255 257 9465 24.1 888
Oct 3.914 206 6724 307 10021 24.4 796
Nov 3.580 209 6240 310 9256 25.9 773
Dec 4.523 171 6450 253 9543 20.6 777

 

Effluent 2016 (Daily Avg.)

 

Month

Flow (MGD)

TSS (mg/l)

TSS (lbs/day)

CBOD (mg/l)

CBOD (lbs/day)

NH3 (mg/l)

NH3 (lbs/day)

E. coli (#/100ml)

Jan 5.147 4 172 4 172 0.08 3  
Feb 6.810 4 227 4 227 0.56 32  
Mar 6.266 3 157 3 157 0.06 3  
Apr 5.454 3 136 3 136 0.3 14  
May 4.863 3 122 3 122 0.06 2 21.5
Jun 4.237 2 71 3 106 0.19 7 19.3
Jul 4.014 2 67 3 100 0.8 27 25.8
Aug 4.210 2 70 3 105 0.94 33 13.3
Sep 4.416 3 110 3 110 0.09 3 15.9
Oct 3.914 2 65 3 98 0.86 28 30.7
Nov 3.580 4 119 5 149 0.62 19  
Dec 4.523 5 189 7 264 0.33 12  

 

Effluent Metals 2016 (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 7.8 AA 1.6 33 AA AA
Feb 0.005 AA AA AA 8.3 AA 1.8 47 AA AA
Mar 0.007 AA AA AA AA AA 1.7 37 AA AA
Apr 0.006 AA AA AA AA AA 2.0 38 AA AA
May AA AA AA AA 5.3 AA 2.6 30 AA AA
June 0.005 AA AA AA 6.6 AA 3.0 44 AA AA
July AA AA AA AA 6.7 AA 2.7 47 AA AA
Aug 0.007 AA AA AA 9.3 AA 1.0 41 AA AA
Sep AA AA AA AA 10.5 AA 2.8 55 AA AA
Oct AA AA AA AA 9.1 AA 3.1 41 AA AA
Nov 0.006 AA AA AA 10 AA 3.6 51 AA AA
Dec AA  AA AA AA 5.6 AA 2.5 40 AA AA

AA = Below Detection Limit

Wastewater
City of Fairfield
Fairfield, OH 45014
(513) 858-7775 - After Hours | E-mail

If you are experiencing a Sewer Emergency or have water backing up in your basement contact the Wastewater Treatment Facility at (513) 858-7775 - After Hours

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