Rule 40-31-2-.06 - Elemental Concentration Limits(1) Registrants and product control contractors must ensure that IBD soil amendments they distribute, transport, store, or apply comply with the following elemental ceiling concentration limits: Element | Ceiling Concentration (mg/kg) (dry weight basis) |
Arsenic | 75 |
Cadmium | 85 |
Copper | 4300 |
Lead | 840 |
Mercury | 57 |
Molybdenum | 75 |
Nickel | 420 |
Selenium | 100 |
Zinc | 7500 |
(2) Registrants and product control contractors must ensure that IBD soil amendments they distribute, transport, store, or apply to agricultural land or sites likely to result in contact with the public comply with the following monthly average elemental concentration limits: Element | Monthly Average Concentrations (mg/kg) (dry weight basis) |
Arsenic | 41 |
Cadmium | 39 |
Copper | 1500 |
Lead | 300 |
Mercury | 17 |
Nickel | 420 |
Selenium | 100 |
Zinc | 2800 |
(3) If the elemental concentration limits in Ga. Comp. R. and Regs. r. 40-31-2-.06(2) cannot be met where IBD soil amendments are applied to agricultural land or sites likely to result in contact with the public, registrants and product control contractors must instead ensure that IBD soil amendments they distribute, transport, store, or apply to agricultural land or sites likely to result in contact with the public comply with the following annual elemental loading rates: Element | Annual Elemental Loading Rate (lbs/acre) |
Arsenic | 1.8 |
Cadmium | 1.7 |
Copper | 67 |
Lead | 13 |
Mercury | 0.76 |
Nickel | 19 |
Selenium | 4.5 |
Zinc | 125 |
Ga. Comp. R. & Regs. R. 40-31-2-.06
O.C.G.A. § 2-12-80.
Original Rule entitled "Elemental Concentration Limits" adopted. F. Dec. 7, 2022; eff. Dec. 27, 2022.