EPA · Maryland · discharge permits by parameter
Hardness, total [as CaCO3] in Maryland
- 32Permits carrying a limit
- 2With a recorded exceedance
- 2,593Nationwide
A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Maryland permits that carry one for Hardness, total [as CaCO3]: 32 permits, of which 2 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 |
|---|---|---|---|---|---|
| LA PLATA WWTP | MD0020524 | LA PLATA | Publicly owned treatment works | Major | UNNAMED TRIB. OF PORT TABACCO CK |
| THE CITY OF BOWIE WASTEWATER TREATMENT PLANT | MD0021628 | BOWIE | Publicly owned treatment works | Major | UNNAMED DITCH-PATUXENT RIVER |
Other pollutants in Maryland
- Ammonia nitrogen, total, [as N] 30 day 5
- Nitrogen, ammonia total [as N] 117
- Nitrogen, nitrite total [as N] 24
- Nitrogen, nitrate total [as N] 31
- Nitrogen, Kjeldahl, total [as N] 55
- Nitrite + Nitrate total [as N] 145
- Phosphate, total [as PO4] 27
- Phosphorus, total [as P] 116
- Cyanide, total [as CN] 3
- Cyanide, free [amenable to chlorination] 6
- Calcium, total [as Ca] 3
- Chloride [as Cl] 35
- Sulfate, total [as SO4] 5
- Fluoride, total [as F] 6
- Arsenic, total recoverable 3
- Iron, total recoverable 5
- Selenium, total recoverable 3
- Arsenic, dissolved [as As] 5
- Arsenic, total [as As] 14
- Barium, total [as Ba] 3
Hardness, total [as CaCO3] nationwide
What this page shows
This page covers Clean Water Act discharge permits in MD with limits on the pollutant parameter Hardness, total [as CaCO3]. It lists 32 permits in MD with a limit on this parameter and 37 permits in MD with a recorded violation of this parameter.