2020 MS4 General Permit Appendix A: Alum or Ferric Chloride Phosphorus Treatment Systems
Appendix A. Alum or Ferric Chloride Phosphorus Treatment Systems
Table 1:
Monitoring parameters during operation
| Station | Alum parameters | Ferric parameters | Units | Frequency |
|---|---|---|---|---|
| Upstream- background |
Total Phosphorus Dissolved Phosphorus Total Aluminum Dissolved Aluminum pH Flow |
Total Phosphorus Dissolved Phosphorus Total Aluminum Dissolved Aluminum pH Flow |
mg/L mg/L mg/L mg/L SU Mgd |
1 x week 1 x week 1 x month 1 x week 1 x week Daily |
| Alum or Ferric Chloride Feed |
Alum | Ferric | Gallons | Daily total dosed in gallons |
| Discharge from treatment |
Total Phosphorus Dissolved Phosphorus Total Aluminum Dissolved Aluminum pH Flow |
Total Phosphorus Dissolved Phosphorus Total Aluminum Dissolved Aluminum pH Flow |
mg/L mg/L mg/L mg/L SU Mgd |
1 x week 1 x week 1 x month 1 x week 1 x week Daily |