EPA · subbasin 10030101 · discharge permits by parameter
Oil and grease, hexane extr method in subbasin 10030101
- 10Permits carrying a limit
- 0With a recorded exceedance
- 2,470Nationwide
A subbasin is a unit of the national Watershed Boundary Dataset, and water crosses state lines: a permit is placed here by the outfall EPA names as its representative discharge point.
10 of the permits in subbasin 10030101 carry a numeric limit on Oil and grease, hexane extr method, and 0 of those have a recorded exceedance. Nationwide the same parameter appears in 2,470 permits. A permit carrying several parameters is counted under each of them, so the parameter counts for one subbasin add up to more permits than it holds. The other parameters named in this subbasin are listed below.
Permits
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| PALEO SEARCH INC - SUCTION DREDGE PROJECT | MT0025020 | HELENA | MT | Major | MISSOURI RIVER |
Other pollutants in subbasin 10030101
- Flow rate 37
- Flow rate 3
- Conductivity 10
- Specific conductance 12
- Sulfate [as S] 3
- Oxygen, dissolved [DO] 3
- BOD, 5-day, 20 deg. C 28
- pH 24
- Alkalinity, total [as CaCO3] 3
- Solids, total suspended 46
- Oil & Grease 4
- Nitrogen, total [as N] 34
- Nitrogen, ammonia total [as N] 27
- Nitrogen, Kjeldahl, total [as N] 32
- Nitrite + Nitrate total [as N] 38
- Phosphorus, total [as P] 31
- Cyanide, total [as CN] 3
- Hardness, total [as CaCO3] 6
- Chloride [as Cl] 18
- Fluoride, total [as F] 3
Oil and grease, hexane extr method nationwide · Subbasin 10030101, every permit
What this page shows
This page covers Clean Water Act discharge permits in watershed 10030101 with limits on the pollutant parameter Oil and grease, hexane extr method. It lists 10 permits in this watershed with a limit on this parameter and 12 permits in this watershed with a recorded violation of this parameter.