EPA · Ohio · discharge permits by parameter
Hardness, total [as CaCO3] in Ohio
- 374Permits carrying a limit
- 0With a recorded exceedance
- 2,593Nationwide
A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Ohio permits that carry one for Hardness, total [as CaCO3]: 374 permits, of which 0 have a recorded exceedance. Nationwide the same parameter appears in 2,593 permits. Each row below is one permit, and it opens the agency’s own record for that permit.
Permits
| Permit holder | NPDES ID | City | Program | Discharger | Receiving water |
|---|---|---|---|---|---|
| STRUTHERS WWTP | OH0027600 | STRUTHERS | Publicly owned treatment works | Major | Mahoning River |
| BEDFORD WASTEWATER TREATMENT PLANT | OH0024040 | BEDFORD | Publicly owned treatment works | Major | Wood Creek |
| CITY OF NEWARK WASTEWATER TREATMENT PLANT | OH0026671 | NEWARK | Publicly owned treatment works | Major | Licking River |
| HANNIBAL DEVELOPMENT PARTNERS | OH0011550 | HANNIBAL | Major | Ohio River | |
| MIDDLE EAST FORK WWTP | OH0049387 | BATAVIA | Publicly owned treatment works | Major | East Fork of Little Miami River |
| CLYDE WWTP | OH0024686 | CLYDE | Publicly owned treatment works | Major | Racoon Creek-Frontal Sandusky Bay |
Other pollutants in Ohio
- Nitrite plus nitrate in bottom deposits 49
- Nitrogen, inorganic total 16
- Phosphate, ortho [as PO4] 3
- Phosphorus, total [as P] 1,193
- Phosphorous, total, in bottom deposits 266
- Phosphate, ortho, dissolved [as P] 149
- Carbon, tot organic [TOC] 70
- Cyanide, free-water plus wastewaters 64
- Cyanide, total [as CN] 121
- Sulfide, total [as S] 3
- Calcium, total [as Ca] 15
- Magnesium, total [as Mg] 17
- Sodium, total [as Na] 17
- Potassium, total [as K] 8
- Potassium, in bottom deposits 264
- Chloride [as Cl] 79
- Sulfate, total [as SO4] 71
- Fluoride, total [as F] 32
- Arsenic, total recoverable 76
- Cobalt, total recoverable 8
Hardness, total [as CaCO3] nationwide
What this page shows
This page covers Clean Water Act discharge permits in OH with limits on the pollutant parameter Hardness, total [as CaCO3]. It lists 374 permits in OH with a limit on this parameter and 187 permits in OH with a recorded violation of this parameter.