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TABLE 6 <br /> SUMMARY OF ANNUAL EFFLUENT NITROGEN APPLICATION <br /> City of Manteca <br /> Avg. Total Land Unit N <br /> Flow Nitrogena Used Load <br /> Year (mgd) Load (lbs) (Acres) (lbs/ac) <br /> 1984 2.81 213,848 303 706 <br /> 1985 3.13 238,201 303 786 <br /> 1986 3.45 262,544 303 866 <br /> 1987 3.59 273,208 303 902 <br /> 1988 3.55 270,164 303 892 <br /> 1989 2.20 171,992 303 568 <br /> 1990 3.20 246,572 303 814 <br /> a Assumed effluent nitrogen concentration of 25 mg/L from 1990 records. Effluent nitrate- <br /> nitrogen and ammonia-nitrogen concentration of 11 mg/L and 14 mg/L, respectively. <br /> b Annual equivalent flow corresponding to effluent disposed on land. Actual 1989 and 1990 <br /> flows were 4.18 mgd and 4.46 mgd, respectively. <br />