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PART I Page 9a Permit No. CO-0044776 •B. MONTTORING REQUIREMENTS 3. Biosolids Parameters (continued) (iii) Samples taken in compliance with the monitoring requirements specified above shall be taken at the following locations: 1) For biosolids stability/volatile solids reduction, samples shall be taken before digestion and dewatering (or other stabilization processes) and after the biosolids has been digested and/or dewatered (or otherwise stabilued) but prior to transport or disposal; 2) For all other parameters, samples shall be taken after digestion and/or dewatering (or other stabilization processes) but prior to transport or disposal. All samples shall be representative of the biosolids stream being sampled. Beneficial Use" means the use of nutrients and/or moisture in the biosolids [o act as a soil conditioner or low grade fertilizer for the promotion of vegetative growth on land. d) Analytical and SamolinE Methods for Monitorine Sample collection, preservation and analysis shall be performed in a manner consistent with the requirements of the Biosolids Regulations, 64 (SCCR 1002-64) and/or other criteria specified in this permit. Metals analyses aze to be performed using method SW 846 with samples prepared in accordance with method 3050. The methods are also described in the latest version of the EPA Region VIII Biosolids Management Handbook. e) ec • Biosolids which are Class A with respect to pathogens and which meet the monthly pollutant concentration limits identified in Part I.A.2.a) shall comply with the recordkeeping requirements identified in sections 4.e)(I)(1) through 4.e)(I)(3), below. If the biosolids are Class B with respect to pathogens, or if any pollutant limited in Part I.A.2.a) increases to [he point where the biosolids no longer meet the monthly average pollutant concentration limits in Part I.A.2.a), [he petmittee shall comply with all of the recordkeeping requirements identified below: (I) The permittee is required [o have access to the following information for at least 5 years: (]) Test results showing the concentration of each pollutant in Patt I.A.2.a); (2) A description of how the pathogen reduction requirements in Part I.A.2.b) were met; (3) A description of how the vector attraction reduction requirements in Pan I.A.2.c) were met; (4) A description of how the management practices in Pan I.A.2.e) were me[ (if necessary); (5) A description of how the site resvic[ions in Part I.A.2.b) were met (if necessary); and (6) The following certification statement: "I certify under the penalty of law, that the pathogen requirements in Part I.A.2.b), one of the vector attraction reduction alternatives in Pan I.A.2.c}, the management practices in PaR I.A.2.d) (if necessary) and the site restrictions in Par[ I.A.2.b) (if necessary) have been met. This determination has been made under my direction and supervision in accordance with the system designed to assure • [hat qualified personnel properly gather and evaluate the information used to determine that the pathogen requirements, the vector attraction reduction requirements, the management practices and dre site restrictions have been met. I am aware [hat there are significant penalties for Calse certification including the possibility of imprisonment." tt''y~ Amendment No. l Issued JUl~ 2 ~ 1aoa Effective t~V V ~ ~ 1~ ~ ~'i