further pool ponderings

Pool records indicate that on Oct 20,2008 there were ten swim lessons that started at 7pm. Also at 7pm was 100 swimmers from various swim teams- Reagan 19, Columbus 17, Springs (middle?) 15, and MDAC 49. All were documented as residents in the swim lessons category like this (40)(40)(80)(80)(40) and one scratched out (40), for a total of $280. No polo or scuba. 4 aerobics noted but none charged for. Are those in parentheses for each individual lane? 6 lap swimmers were noted but there is no record of any charges, or whether they were residents or not. Are lap swimmers the swim team? or private residents? or nonresidents? At 5pm there were 10 swimmers and I guess those were the lessons. Is it possible that the teams started at 5pm too? $126 of that $286 is designated as cash; one check # 31 was for $40, another $40 check was #1856, and the last was for $80 was # 1358. Total payment was $286 on the bottom line. The transaction date was 10/22/08 and the receipt was # 1687. Zero at 6pm. There is no real reason for the pool lifeguards to get involved as this point, as we are making progress individually, and as a group. There MAY be a point somewhere in the future where their information would be helpful, but not right now so much. There's a LOT of sorting out to be done first. Oct 15th has 98 swim team members, starting at 4:30pm and 12 swim lessons, for which check # 329 paid $60. No mention of any monies received from the swim team. 7 patrons were noted at the bottom of the log. No mention of swim team swimmers using the pool. MDAC was 54 of those 98 swimmers, Columbus 18, Springs 12, Reagan 14. Its like they didn't exist, or at least the pool rental monies didn't exist. It WAS clearly documented that they WERE there, just without any monies paid. Why?