Wastewater
City of Fairfield
Fairfield, OH 45014
(513) 858-7760 | E-mail

If you are experiencing a Sewer Emergency or have water backing up in your basement contact the Wastewater Treatment Facility at (513) 858-7760

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Wastewater Characteristics 2012

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	160	8,674	52
CBOD	220	18,384	159	8,619	47

Influent 2012 (Daily Avg.)

Month	Flow (MGD)	TSS (mg/l)	TSS (lbs/day)	CBOD (mg/l)	CBOD (lbs/day)	NH3 (mg/l)	NH3 (lbs/day)
Jan	7.427	170	10530	141	8734	12.1	749
Feb	5.276	227	9988	211	9284	17.6	774
Mar	5.192	247	10695	206	8920	16.6	719
Apr	4.842	216	8723	232	9369	18.5	747
May	6.837	181	10321	183	10435	15.1	861
Jun	4.526	210	7927	224	8455	23.8	898
Jul	4.073	201	6828	237	8051	15.5	527
Aug	3.808	205	6511	248	7876	21.9	696
Sep	4.263	186	6613	233	8284	17.4	619
Oct	4.166	192	6671	238	8269	18.9	657
Nov	4.044	206	6948	247	8331	16.4	553
Dec	5.028	173	7254	194	8135	19.6	822

Effluent 2012 (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	7.427	5	309	4	248	5.11	317
Feb	5.276	4	176	3	132	5.67	249
Mar	5.192	3	130	3	130	1.08	47
Apr	4.842	2	81	2	81	0.31	13
May	6.837	2	114	2	114	0.24	13.7	29
Jun	4.526	3	113	2	75	0.21	8	33
Jul	4.073	2	68	2	68	0.34	12	66
Aug	3.808	5	159	3	95	1.09	35	165
Sep	4.263	2	71	2	71	2.64	94	73
Oct	4.166	5	173	2	69	0.35	12	126
Nov	4.044	7	236	6	202	3.38	114
Dec	5.028	11	461	11	461	2.82	118

Effluent Metals 2012 (Daily Avg.)

Month	CN (mg/l)	Cd (ug/l)	Cr-T (ug/l)	Cr-D (ug/l)	Cu (ug/l	Pb (ug/l)	P (mg/l)	Zn (ug/l)	Hg (ng/l)	O&G (mg/l)
Jan	AA	AA	AA	AA	4.82	AA	1.02	AA	1.1	AA
Feb	AA	AA	AA	AA	4.46	AA	1.92	32.2	1.7	AA
Mar	AA	AA	AA	AA	9.09	AA	3.99	35.0	3.3	AA
Apr	AA	AA	AA	AA	6.35	AA	2.32	35.3	3.4	AA
May	AA	AA	AA	AA	4.44	0.67	1.37	19.0	2.5	AA
June	AA	AA	AA	AA	6.76	AA	2.13	30.7	4.2	AA
July	0.005	AA	AA	0.48	9.5	0.33	1.97	45.0	4.8	AA
Aug	AA	AA	AA	AA	16.5	0.56	5.35	50.9	3.1	AA
Sep	AA	AA	AA	AA	9.43	AA	3.64	45.4	3.2	AA
Oct	AA	AA	AA	AA	11.2	AA	2.46	29.7	3.5	AA
Nov	AA	AA	AA	AA	7.31	AA	2.31	42.0	2.4	AA
Dec	0.009	AA	AA	AA	12.7	AA	1.86	56.5	3.4	AA

AA = Below Detection Limit