Minn. R. Part 7041.1100
Bulk sewage sludge or sewage sludge sold or given away in a bag or other container must not be applied to the land if the concentration of any pollutant in the sewage sludge exceeds the ceiling concentration for the pollutant in subpart 4, item A.
If bulk sewage sludge is applied to agricultural land, forest, a public contact site, or a reclamation site, either the cumulative loading rate for each pollutant must not exceed the cumulative pollutant loading rate for each pollutant in subpart 4, item B, or the bulk sewage sludge must be exceptional quality sewage sludge.
The conditions in items A and B apply to pollutant concentrations in bulk sewage sludge and sewage sludge sold or given away in a bag or other container.
Pollutant concentrations and loading rates are given in items A to D.
| Pollutant | Ceiling Concentration (mg/kg)1 | |
| Arsenic | 75 | |
| Cadmium | 85 | |
| Copper | 4300 | |
| Lead | 840 | |
| Mercury | 57 | |
| Molybdenum | 75 | |
| Nickel | 420 | |
| Selenium | 100 | |
| Zinc | 7500 |
1Dry weight basis
| Pollutant | Rate (kg/ha) | Rate (lbs/ac) | ||
| Arsenic | 41 | 37 | ||
| Cadmium | 39 | 35 | ||
| Copper | 1500 | 1339 | ||
| Lead | 300 | 268 | ||
| Mercury | 17 | 15 | ||
| Nickel | 420 | 375 | ||
| Selenium | 100 | 89 | ||
| Zinc | 2800 | 2500 |
| Pollutant | Monthly Average Concentrations (mg/kg)1 | |
| Arsenic | 41 | |
| Cadmium | 39 | |
| Copper | 1500 | |
| Lead | 300 | |
| Mercury | 17 | |
| Nickel | 420 | |
| Selenium | 100 | |
| Zinc | 2800 |
1On a dry weight basis, the arithmetic mean of all measurements taken during the month.
| Pollutant | Rate (kg/ha) | Rate (lb/ac) | ||
| Arsenic | 2.0 | 1.8 | ||
| Cadmium | 1.9 | 1.7 | ||
| Copper | 75.0 | 67.0 | ||
| Lead | 15.0 | 13.0 | ||
| Mercury | 0.85 | 0.76 | ||
| Nickel | 21.0 | 19.0 | ||
| Selenium | 5.0 | 4.5 | ||
| Zinc | 140.0 | 125.0 |
Minn. R. Part 7041.1100
Statutory Authority: MS s 116.07