[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR503.13] [Page 828-829] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 503--STANDARDS FOR THE USE OR DISPOSAL OF SEWAGE SLUDGE--Table of Contents Subpart B--Land Application Sec. 503.13 Pollutant limits. (a) Sewage sludge. (1) Bulk sewage sludge or sewage sludge sold or given away in a bag or other container shall not be applied to the land if the concentration of any pollutant in the sewage sludge exceeds the ceiling concentration for the pollutant in Table 1 of Sec. 503.13. (2) If bulk sewage sludge is applied to agricultural land, forest, a public contact site, or a reclamation site, either: (i) The cumulative loading rate for each pollutant shall not exceed the cumulative pollutant loading rate for the pollutant in Table 2 of Sec. 503.13; or (ii) The concentration of each pollutant in the sewage sludge shall not exceed the concentration for the pollutant in Table 3 of Sec. 503.13. (3) If bulk sewage sludge is applied to a lawn or a home garden, the concentration of each pollutant in the sewage sludge shall not exceed the concentration for the pollutant in Table 3 of Sec. 503.13. (4) If sewage sludge is sold or given away in a bag or other container for application to the land, either: (i) The concentration of each pollutant in the sewage sludge shall not exceed the concentration for the pollutant in Table 3 of Sec. 503.13; or (ii) The product of the concentration of each pollutant in the sewage sludge and the annual whole sludge application rate for the sewage sludge shall not cause the annual pollutant loading rate for the pollutant in Table 4 of Sec. 503.13 to be exceeded. The procedure used to determine the annual whole sludge application rate is presented in appendix A of this part. [[Page 829]] (b) Pollutant concentrations and loading rates--sewage sludge. (1) Ceiling concentrations. Table 1 of Sec. 503.13--Ceiling Concentrations ------------------------------------------------------------------------ Ceiling concentration Pollutant (milligrams per kilogram) \1\ ------------------------------------------------------------------------ Arsenic.................................................. 75 Cadmium.................................................. 85 Copper................................................... 4300 Lead..................................................... 840 Mercury.................................................. 57 Molybdenum............................................... 75 Nickel................................................... 420 Selenium................................................. 100 Zinc..................................................... 7500 ------------------------------------------------------------------------ \1\ Dry weight basis. (2) Cumulative pollutant loading rates. Table 2 of Sec. 503.13--Cumulative Pollutant Loading Rates ------------------------------------------------------------------------ Cumulative pollutant loading Pollutant rate (kilograms per hectare) ------------------------------------------------------------------------ Arsenic.................................................... 41 Cadmium.................................................... 39 Copper..................................................... 1500 Lead....................................................... 300 Mercury.................................................... 17 Nickel..................................................... 420 Selenium................................................... 100 Zinc....................................................... 2800 ------------------------------------------------------------------------ (3) Pollutant concentrations. Table 3 of Sec. 503.13--Pollutant Concentrations ------------------------------------------------------------------------ Monthly average concentration Pollutant (milligrams per kilogram) \1\ ------------------------------------------------------------------------ Arsenic.................................................. 41 Cadmium.................................................. 39 Copper................................................... 1500 Lead..................................................... 300 Mercury.................................................. 17 Nickel................................................... 420 Selenium................................................. 100 Zinc..................................................... 2800 ------------------------------------------------------------------------ \1\ Dry weight basis. (4) Annual pollutant loading rates. Table 4 of Sec. 503.13--Annual Pollutant Loading Rates ------------------------------------------------------------------------ Annual pollutant loading rate Pollutant (kilograms per hectare per 365 day period) ------------------------------------------------------------------------ Arsenic................................................... 2.0 Cadmium................................................... 1.9 Copper.................................................... 75 Lead...................................................... 15 Mercury................................................... 0.85 Nickel.................................................... 21 Selenium.................................................. 5.0 Zinc...................................................... 140 ------------------------------------------------------------------------ (c) Domestic septage. The annual application rate for domestic septage applied to agricultural land, forest, or a reclamation site shall not exceed the annual application rate calculated using equation (1). [GRAPHIC] [TIFF OMITTED] TC15NO91.192 Where: AAR=Annual application rate in gallons per acre per 365 day period. N=Amount of nitrogen in pounds per acre per 365 day period needed by the crop or vegetation grown on the land. [58 FR 9387, Feb. 19, 1993, as amended at 58 FR 9099, Feb. 25, 1994; 60 FR 54769, Oct. 25, 1995]