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PART I <br />Page 4e <br />Permit No. CO-0044776 <br />•A. DEFINITION OF EFFLUENT LIMITATIONS <br />2. Biosolids Limitations and Management Requirements (continued) <br />d. Biosolids Man~ieement Practices <br />(I) If the biosolids or material derived from biosolids meet the pollutant concentration limits in Par[ I.A.2.a), <br />the Class A pathogen reduction limits in Part I.A.2.b) and one of the first four vector attraction reduction <br />alternatives in Part I.A.2.c), the following management practices are not required unless requested by the <br />Division through permit modification procedures under Patt ff.B.8.e} of this permit. <br />(ii) The permittee shall operate and maintain the land application site operations in accordance with the <br />following requirements: <br />(1) The permittee shall provide to the Division and to EPA within 90 days of the issuance of this permit a <br />land application plan. At a minimum, the plan is to include the components listed in section 2.3 of the <br />latest version of the EPA Region VIII Biosolids Management Handbook. <br />(2) Application of biosolids shall be conducted in a manner that will not contaminate the groundwater <br />underlying the sites. Biosolids shall not be applied to any site area with standing water or where the <br />annual high groundwater level is less than five feet without written permission of the Division. <br />(3) Application of biosolids shall be conducted in a manner that will not cause a violation of any receiving <br />• water quality standazd from discharges of surface runoff from the land application sites. Biosolids shall <br />not be applied [o land 10 meters or less from waters of the U.S. (as defined in 40 CFR 122.2). <br />(4) Application of biosolids shall be conducted in a manner that does not exceed the agronomic rate for <br />available nitrogen of the crops grown on the site. The treatment plant shall provide written notification <br />to the applier of the biosolids, if not the same, of the concentration of total nitrogen (as N on a dry <br />weight basis) i^ the biosolids. Written permission from the Division is required to exceed the <br />agronomic rate. <br />(5} No person shall apply sludge for beaeficial use to frozen, ice-covered, or snow-covered land where the <br />slope of such land is greater than three percent and is less than or equal [o five percent unless one of the <br />following requirements is met: <br />A. a vegetated buffer strip of a[ leas[ 50 feet is provided between the application area and the site <br />boundary; or, <br />B. Division approval has been obtained based upon a plan demonstrating adequate runoff containment <br />measures. <br />(6) The biosolids or the application of the biosolids shall not cause or contribute to the harm of a threatened <br />or endangered species or result in the destruction or adverse modification of critical habitat of a <br />threatened or endangered species after applicatpion. (I <br />Amendment No. l Issued J~N 2 $ 1999 Effective AUG U ~ 1~Q9 <br /> <br />