In December, tremors rippled through the Del Mar horse community when the 22nd District Agricultural Association announced the cancellation of all scheduled 2021 horse shows at the Del Mar Horsepark, and the proposed removal of all horses boarded there, in order to attend to costly water quality issues bedeviling the facility. At a meeting Tuesday, board members expanded upon the reasons behind the temporary closure of the Horsepark--a 65-acre equestrian facility located within two miles from the Del Mar Fairgrounds racetrack--and mooted the idea of holding as many of the...