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<br />(b) Operators of animal feeding operations shall collect and evenly apply <br />wastewater to land at proper agronomic rates. <br /> <br />(c) Operators shall not deposit such material which might pollute waters of the <br />state in such locations that storm water run-off or normally expected high <br />stream flow will carry such material into the waters of the state. <br /> <br />(d) Process wastewater retention structures shall not be located within a mapped <br />100 year flood plain as designated and approved by the Colorado Water <br />Conservation Soard (CWCS) unless proper flood proofing measures <br />(structures) are designed and constructed. <br /> <br />(5) Practices to minimize solid manure transport to watercourses: <br /> <br />(a) Manure stockpiles shall be located away from watercourses and above the 100 <br />year flood plain as designated and approved by CWCS unless adequate flood <br />proofing structures are provided. '., <br /> <br />(b) Operators of animal feeding operations shall provide adequate manure storage <br />capacity based upon manure and wastewater production, <br /> <br />(c) Settleable solids shall be removed by the use of solids-setting basins, terraces, <br />diversions, or other solid removal methods. Construction of solids-settling <br />facilities shall not be required where the division determines existing site <br />conditions provide adequate settleable solids removal. <br /> <br />(d) Removal of settleable manure and process wastewater solids shall be <br />considered adequate when the velocity of waste flows has been reduced to <br />less than 0.5 foot per second for a minimum of five minutes, Sufficient <br />capacity shall be provided in the solids-settling facilities 10 store settled solids <br />between periods of manure and process wastewater disposal. <br /> <br />(e) Operators of animal feeding operations shall apply solid manure to suitable <br />agricultural land at appropriate times and rates through the following practices: <br /> <br />(i) Adjustment of timing and rate of applications to crop needs, in assuming <br />usual nutrient losses, expected precipitation and soil conditions; <br /> <br />(ii) Avoidance of applications on saturated soils; and <br /> <br />(iii) Avoidance of land subject to excessive erosion. <br /> <br />(f) Operators of animal feeding operations shall use edge-of-field, grassed strips <br />filter fences or straw bales to separate eroded soil and manure particles from <br />the field runoff, <br /> <br />(g) Off-site areas for manure shall be applied in a manner consistent with <br />paragraphs (1) through (4) of this section. .' <br /> <br />14 <br />