From the water analysis report for Nov. 2007, we noted that the soild particle in the swimming pool system was 200 mg/L , exceeding the limit of 100mg/L. The reason was due to a malfunction of the circulation pump leading to the system. Subsequent to its prompt repair, the system resumed normal operation and the reading of soild particle was 85 mg/L , 20 mg/L lower than the limit of 100mg/L , shown in the attached report for Dec. 2007 & Jan. 2008 respectively. The overall performance of the system is indicated in the attached water analysis report for Nov. and Dec. 2007 & Jan. 2008.
Do you mean "solid" or "soild" ?