Laserfiche WebLink
Figure 5 - Average pH Along Canal <br />7.60 <br />7.40 - <br />7.20 <br />7.00 <br />Vi 6.80 <br />6.60 <br />6.40 <br />6.20 <br />A B C D E F <br />As indicated above, the average pH gradually rises in the canal from a- low of <br />6.75 at Sample Point A to 7.45 at Sample Point E, an increase of 0.70 units. The <br />water changes from just slightly acidic at Sample Point A to almost neutral at <br />Sample Point B. The pH at Sample Points E and F are nearly identical. Average <br />pH increases equally between Sample Points B and C and between Sample <br />Points D and E. <br />b. Temperature — Average water temperature in the Study Area is shown <br />graphically in Figure 6. It ranges from an average 25.7° C (78.26° F) at Sample <br />Point A to 27.2° C (80.96° F) at Sample Point E, for a delta of 1.5° C (2.7° F). The <br />small temperature variances could be due to changes in water temperature in <br />certain sections from pipe discharges from ponds, etc. or because of water <br />surface shading by overhanging trees and other vegetation. <br />10 <br />F:\PublicWorks\KeithM\Stormwater Projects\IRFWCD 8th Street Canal Water Study\Memo 2 - 8th Street Canal.doc 41 <br />