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The best management practice of moving manure P and N with turfgrass sod across watershed boundaries was evaluated. The export and import of manure P or N with sod and soil-test P concentration in sod were related to P loading and runoff water quality. Up to 274 kg ha-1 of soil P and 72% of applied manure P were removed in a single sod harvest from a dairy waste application site. Total dissolved P (TDP) losses in runoff after import of manure-grown sod on an 8.5% slope were directly related to soil-test P of sod. Variation of soil-test P in samples of imported sod extracted in water, 10 mM CaCl2, and Olsen, Mehlich III, and acidified ammonium acetate-EDTA solutions accounted for > 77% of variation of TDP concentration in runoff of simulated rain. The soil-test P values could be used alone or as a component of a P index to evaluate impacts of manure-grown sod imports on water quality.