City of Fairfield, Ohio
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City of Fairfield, Ohio
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Wastewater Characteristics 2013

 

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 2013 (Daily Avg.)

 

Month

Flow (MGD)

TSS (mg/l)

TSS (lbs/day)

CBOD (mg/l)

CBOD (lbs/day)

NH3 (mg/l)

NH3 (lbs/day)

Jan 5.671 152 7189 185 8750 14.7 695
Feb 5.499 155 7109 205 9402 13.3 610
Mar 7.142 119 7088 153 9113 15.3 911
Apr 6.139 150 7680 196 10598 12.1 620
May 5.759 167 8021 207 9942 13.6 653
Jun 4.624 180 6942 220 8484 20.1 775
Jul 5.178 172 7427 204 8810 16.9 730
Aug 4.060 205 6941 250 8465 22.6 765
Sep 4.100 206 7044 234 8001 21.8 745
Oct 4.794 198 7916 208 8316 19.3 772
Nov 4.756 181 7179 213 8448 21.7 861
Dec 6.158 155 7960 182 9347 11.1 570

 

Effluent 2013 (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 5.671 11 520 9 425 0.7 33  
Feb 5.499 5 229 3 138 0.07 3  
Mar 7.142 4 238 3 179 0.13 8  
Apr 6.139 4 205 3 154 3.06 157  
May 5.759 5 240 3 144 0.28 13 79
Jun 4.624 2 77 2 77 0.1 4 146
Jul 5.178 2 86 2 86 0.19 8 61
Aug 4.060 4 135 3 102 0.54 18 149
Sep 4.100 2 68 2 68 0.1 3 150
Oct 4.794 7 280 4 160 0.1 4 143
Nov 4.756 6 238 3 119 0.07 3  
Dec 6.158 6 308 3 154 0.19 10  

 

Effluent Metals 2013 (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 0.013 AA AA AA AA AA 2.91 AA 1.8 AA
Feb AA AA AA AA AA AA 0.61 AA 2.6 AA
Mar AA AA AA AA AA AA 1.3 AA 1.3 AA
Apr AA AA AA AA AA AA 1.1 AA 0.9 AA
May AA AA AA AA 11.0 AA 1.4 AA 0.7 AA
June AA AA AA AA 10.0 AA 2.9 AA 3.4 AA
July AA AA AA AA AA AA 1.9 AA 2.1 AA
Aug AA AA AA AA AA AA 2.4 50.0 1.8 AA
Sep AA AA AA AA AA AA 2.7 51.0 2.2 AA
Oct AA AA AA AA 13.0 AA 0.65 AA 2.9 AA
Nov 0.015 AA AA AA 12.0 AA 2.3 AA 3.2 AA
Dec AA AA AA AA AA AA 3.0 57.0 1.6 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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