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Nitrogen collection calculations: (TOTAL LBS PER DAY) <br /> Cattle in Freestall and Flushed Concrete Lanes: <br /> ANIMAL LBS (N) PER DAY DRY (COLLECTED @ WET (FLUSHED <br /> CLASSIFICATION CORRALS) FROM COW LANES) <br /> 20% 80% <br /> Lactating (milking) 901.6 180.32 721 .28 <br /> Dry & Bred Heifer 124.2 24.84 99.36 <br /> Heifer 1 ear- bred 22 4.40 17.60 <br /> Calves (3 months — 1 0 0 0 <br /> ear <br /> Baby Calves (up to 3 0 0 0 <br /> ' months <br /> TOTAL NITROGEN <br /> COLLECTED PER <br /> — DAY: 209.56 838.24 <br /> Cattle in Dry Lots (Scrape): <br /> ANIMAL LBS (N) PER DAY DRY (COLLECTED @ <br /> CLASSIFICATION CORRALS) <br /> 100% <br /> Lactating (milking) 0 0 <br /> Dry & Bred Heifer 0 0 <br /> Heifer 1 ear- bred 0 0 <br /> Calves (3 months — 1 30 30 <br /> ear <br /> Baby Calves (up to 3 9 9 <br /> months <br /> TOTAL NITROGEN <br /> COLLECTED PER <br /> DAY: 39 <br /> *Nitrogen flushed from concrete cow lanes will flow through settling ponds. <br /> *Settling ponds typically collect 80% of the solids prior to reaching the lagoon. <br /> *Settling ponds retain approximately 20% of the nitrogen prior to reaching the lagoon. <br /> Lbs of flushed nitrogen collected in settling pond <br /> (WET COLUMN X 20%) 838.24 x .20 = 167.65 lbs. per day <br /> Lbs of nitrogen reaching anaerobic lagoon <br /> (WET COLUMN X 80%) 838.24 x .80 = 670.59 lbs. per day <br /> Refer to page 24 for Endnotes and Reference Sources <br /> Nitrate Loading Study <br /> Property Name and Address. Frank Faria Dairy,Inc. 12182 S. Robinson Road,Escalon,CA 95320 <br /> Page 16 <br /> Western Design/David Avila 2001 <br /> Mass Balance of Nitrogen Loading <br /> IXE <br />