EPA · Ohio · discharge permits by parameter
pH range excursions, > 60 minutes in Ohio
- 13Permits carrying a limit
- 8With a recorded exceedance
- 284Nationwide
Permits
Other parameters in Ohio
- pH2,632
- Solids, total suspended2,613
- Nitrogen, ammonia total [as N]2,036
- Oxygen, dissolved [DO]2,011
- BOD, carbonaceous [5 day, 20 C]1,962
- E. coli, MTEC-MF1,820
- Flow, in conduit or thru treatment plant1,621
- Turbidity [severity]1,479
- Sludge waste from secondary clarifiers1,437
- Temperature, water deg. centigrade1,405
- Chlorine, total residual1,299
- Flow rate1,208
- Phosphorus, total [as P]1,193
- Nitrite + Nitrate total [as N]1,016
- Oil and grease, hexane extr method735
- Nitrogen, Kjeldahl, total [as N]714
- Solids, total dissolved- 180 deg. C688
- Overflows631
- Biosolids weight indluding admixtures578
- Zinc, total recoverable549
- Copper, total recoverable544
- Mercury, total low level480
- Lead, total recoverable450
- Cadmium, total recoverable438
- Sludge weight, dry431
- Nickel, total recoverable419
- Chromium, total recoverable399
- Hardness, total [as CaCO3]374
- Chromium, hexavalent dissolved [as Cr]340
- Rainfall307
- Nitrogen, ammonia in bottom deposits275
- Lead, total dry weight [as Pb]273
- Nickel, tot in bottom deposits [dry wgt]273
- Cadmium, in bottom deposits [dry wgt]272
- Mercury, tot in bot deposits [dry wgt]272
- Arsenic, dry weight271
- Copper in bottom deposits [dry wgt]269
- Zinc in bottom deposits [dry wgt]269
- Selenium, dry weight267
- Molybdenum, sludge, total, dry weight [as Mo]267
- Phosphorous, total, in bottom deposits266
- Potassium, in bottom deposits264
- Toxicity [acute], Ceriodaphnia dubia240
- Oil and grease [soxhlet extr.] tot.224
- Toxicity [acute], Pimephales promelas [Fathead Minnow]214
- pH, minimum208
- pH, maximum208
- Oxygen demand, chem. [low level] [COD]190
- Cyanide, free available175
- %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia170
- Iron, total recoverable167
- Coliform, fecal MF, MFC broth, 44.5 C166
- %Effect Static Renewal 96Hr Acute Pimephales promelas152
- Toxicity [chronic], Ceriodaphnia dubia149
- Phosphate, ortho, dissolved [as P]149
- Color, spectrophoto-metric filter139
- Toxicity [chronic], Pimephales promelas [Fathead Minnow]138
- Benzene133
- Odor, atmospheric [severity]133
- Toluene132