EPA · subbasin 12010004 · discharge permits by parameter
pH in subbasin 12010004
- 30Permits carrying a limit
- 15With a recorded exceedance
- 58,899Nationwide
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.
30 of the permits in subbasin 12010004 carry a numeric limit on pH, and 15 of those have a recorded exceedance. Nationwide the same parameter appears in 58,899 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
Other pollutants in subbasin 12010004
- Oxygen, dissolved [DO] 11
- BOD, 5-day, 20 deg. C 15
- Solids, total suspended 33
- Oil & Grease 7
- Nitrogen, total [as N] 6
- Nitrogen, ammonia total [as N] 8
- Phosphorus, total [as P] 6
- Arsenic, total [as As] 7
- Arsenic, dry weight 8
- Barium, total [as Ba] 7
- Cadmium, total [as Cd] 7
- Chromium, total [as Cr] 7
- Copper, total [as Cu] 9
- Lead, total [as Pb] 8
- Manganese, total [as Mn] 7
- Nickel, total [as Ni] 15
- Silver, total [as Ag] 7
- Zinc, total [as Zn] 10
- Selenium, total [as Se] 7
- Selenium, dry weight 8
pH nationwide · Subbasin 12010004, every permit
What this page shows
This page covers Clean Water Act discharge permits in watershed 12010004 with limits on the pollutant parameter pH. It lists 30 permits in this watershed with a limit on this parameter and 23 permits in this watershed with a recorded violation of this parameter.