EPA · Michigan · discharge permits by parameter
Hardness, total [as CaCO3] in Michigan
- 4Permits carrying a limit
- 0With a recorded exceedance
- 2,593Nationwide
Permits
Other parameters in Michigan
- Flow, in conduit or thru treatment plant846
- pH776
- Solids, total suspended571
- Oxygen, dissolved [DO]505
- Outfall observation,visual, y/n response500
- Phosphorus, total [as P]461
- Nitrogen, ammonia total [as N]401
- Coliform, fecal general366
- Nickel, sludge, total, dry weight [as Ni]341
- Mercury, sludge, total, dry weight [as Hg]341
- Arsenic, dry weight341
- Zinc, sludge, total, dry weight [as Zn]341
- Lead, sludge, total, dry weight [as Pb]341
- Selenium, dry weight341
- Copper, dry weight341
- Cadmium, dry weight341
- Molybdenum, sludge, total, dry weight [as Mo]341
- Solids, total338
- Potassium, sludge, total, dry weight [as K]338
- Nitrogen, total Kjeldahl338
- Nitrogen, sludge, total, dry weight [as N]338
- Phosphorus, sludge, total, dry weight [as P]338
- Chlorine, total residual315
- BOD, carbonaceous [5 day, 20 C]242
- Mercury, total [as Hg]201
- Solids, suspended percent removal182
- BOD, 5-day, 20 deg. C175
- BOD, carb-5 day, 20 deg C, percent removal157
- Temperature, water deg. fahrenheit156
- Equipment inspection - visual125
- Chlorination duration120
- Solids, total dissolved109
- Benzene, ethylbenzene, toluene, xylene combination87
- Copper, total [as Cu]84
- Chloride [as Cl]80
- Sulfate, total [as SO4]68
- Cyanide [A]57
- Benzene57
- Toxicity [acute], Ceriodaphnia dubia57
- Bromine, reported as the element56
- Oil & Grease56
- Toluene55
- Ethylbenzene54
- TU Static 24 Hr Acute Pimephales promelas49
- Xylenes [total], dry weight47
- Toxicity, choice of species46
- Lead, total [as Pb]46
- Selenium, total [as Se]42
- Perfluorooctanesulfonate39
- Static 48 Hr Chronic Pimphales Promelas37
- Perfluorooctanoic acid (PFOA)35
- Arsenic, total [as As]35
- Ethylbenzene32
- Oxidants, total residual32
- Iron, total [as Fe]30
- Methyl tert-butyl ether [MTBE]27
- Zinc, total [as Zn]22
- Vinyl chloride22
- Trichloroethylene21
- Silver, total [as Ag]21