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PARTI <br />Page 4d <br />Permit No. CO-0044776 <br />A. DEFINITION OF EFFLUENT LIMITATIONS • <br />2. Biosolids Limitations and Management ReQuirement~ (continued) <br />b. Pathogen Limitations (continued) <br />(4) Other food crops and feed crops shall not be harvested from the Ittnd for 30 days after application. <br />(5) Animals shall not be allowed to graze on the land for 30 days after application. <br />(6) Turf grown on land where biosolids are applied shall not be harvested for one year after application if <br />the harvested mrf is placed on either land with a high potential for public exposure or a lawn. <br />(7) Public access to land with a high potential for public exposure shall be restricted for one year after <br />application. <br />(8) Public access to land with a low potential For public exposure shall be restricted for 30 days afrer <br />application. <br />c. Vector Attraction Reduction Limitations <br />if the biosolids are to be land applied to agricultural land, forest land, a public contact site or a reclamation site, <br />the biosolids shall meet any one of the alternatives c)(I) through c)(v). <br />If the biosolids are to be sold or given away in a bag or similar enclosure for application to land or For use on~ <br />lawn or home garden, the biosolids shall meet one of the three alternatives (I) through (iii) below. <br />(I) The mass of volatile solids in dte biosolids shall be reduced by a minimum of 38 percent prior to land <br />application. Alternately, if aerobically digested biosolids cannot meet the 38 percent volatile solids <br />reduction requirement, a portion of the previously digested biosolids (with a percent solids content of 2 <br />percent or less) shall be digested aerobically in the laboratory in a bench-scale unit for an additional 30 [lays <br />at a temperamre between 20 and 22°C. At the end of the 30 days, the volatile solids content shall have <br />been reduced by no more than 15 additional percent. <br />(ii) The specific oxygen uptake rate (SOUR) for the biosolids treated in an aerobic process shall be equal to or <br />less than 1.5 mg of oxygen hour/gram of total solids at a temperamre of 20°C. <br />(iii) The biosolids shall be [rested in an aerobic process for 14 days or longer with a temperature remaining <br />above 40°C. The average temperamre shall be greater than 45°C. <br />(iv) The biosolids shall be injected below the surface of the land and no significant amount of biosolids shall be <br />present on the land surface within one hour after the biosolids are injected. If the biosolids meet the Class <br />A pathogen requirements (Pan I.A.2.b)(1)), the biosolids shall be injected below the land surface within 8 <br />hours after the biosolids are discharged from the pathogen reduction process. <br />(v) Biosolids applied to the (and surface shall be incorporated into the soil within 6 hours after application to [he <br />land. Biosolids [hat are incorporated into the soil and which meet the Class A pathogen requirements (Part <br />I.A.2.b)(1)) shall be applied to or placed on the land within 8 hours after being discharged from the <br />pathogen treatment process. g3 • <br />Amendment No. I Issued J~ti L ~ }tLs{.-i Effective <br />