R18-9-1005. Pollutant Concentrations

A. A person shall not apply biosolids with pollutant concentrations that exceed any of the ceiling concentrations established in Table 1. B. A person shall not apply biosolids sold or given away in a bag or other container that are not exceptional quality biosolids to a site if any annual pollutant loading rate in Table 3 will be exceeded. A person shall determine annual application rates using the methodology established in Appendix A. C. A person shall not apply bulk biosolids to a lawn or garden unless the biosolids are exceptional quality biosolids. D. Unless using exceptional quality biosolids, a person shall not apply bulk biosolids to a site when: 1. The pollutant concentrations exceed the levels in Table 2, or 2. Any cumulative pollutant loading rate in Table 4 will be exceeded. A person shall determine compliance with the site cumulative pollutant loading rates using the following: a. By identifying all known biosolids application events and information relevant to a site since September 13, 1979. b. By calculating the existing cumulative level of the pollutants established in Table 4 using actual analytical data from the application events or if actual analytical data from application events before April 1996 are not available, background concentrations determined by taking representative soil samples of the site, if it is known that the site received biosolids before April 1996. c. Background soil tests are not required for those sites that have not received biosolids before April 23, 1996. Table 1. Ceiling Concentrations Pollutant Ceiling concentrations (milligrams per kilogram) (1) Arsenic 75.0 Cadmium 85.0 Chromium 3000.0 Copper 4300.0 Lead 840.0 Mercury 57.0 Molybdenum 75.0 Nickel 420.0 Selenium 100.0 Zinc 7500.0 (1) Dry-weight basis. Table 2. Monthly Average Pollutant Concentrations Pollutant Concentration limits (milligrams per kilogram)(1) Arsenic 41.0 Cadmium 39.0 Copper 1500.0 Lead 300.0 Mercury 17.0 Nickel 420.0 Selenium 100.0 Zinc 2800.0 (1) Dry-weight basis. Table 3. Annual Pollutant Loading Rates Pollutant Annual pollutant loading rates (in kilograms per hectare) Arsenic 2.0 Cadmium 1.9 Copper 75.0 Lead 15.0 Mercury 0.85 Nickel 21.0 Selenium 5.0 Zinc 140.0 Table 4. Cumulative Pollutant Loading Rates Pollutant Cumulative pollutant loading rates (in kilograms per hectare) Arsenic 41.0 Cadmium 39.0 Copper 1500.0 Lead 300.0 Mercury 17.0 Nickel 420.0 Selenium 100.0 Zinc 2800.0