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FoRR took to the river on May 17 and 18 to monitor at five sites in the Reedy River watershed! Our sites include the following:
The pH results for May were consistent with April's findings at all five of our reported sites. Our conductivity results for all sites were also similar to last month's findings.
The dissolved oxygen (DO) levels decreased by an average of 0.7 mg/L across all sites (compare to the 1.14 mg/L decrease we saw from March to April). The average air temperatures for all sites when sampled at their regularly monitored time increased by an average of 5.1 degrees Celsius. Water temperatures increased by an average of 3.4 degrees Celsius from April to May. DO levels will remain low throughout the warmer months and will eventually increase again in the fall when we experience cooler temperatures again due to the inverse relationship between temperature and DO capacity in water: the warmer the temperature, the lower the water's capacity to hold DO!
May's E. coli bacteria levels showed slight changes this month. Our site near Falls Park had a significantly low count of only 66.67 CFU/100mL but can't compare to Greenville Tech Brashier's count of 0 CFU/100mL! Cedar Falls Park also had notably low E. coli bacteria counts, all of which can likely be attributed to the unseasonably dry weather we have had in the upstate in the past weeks. Our ReWa site's level was a moderate 267 CFU/100mL, which shows a return to normal levels for this location as opposed to last month's somewhat high results (433 CFU/100mL). We expect to see sustained higher E. coli bacteria counts until temperatures drop again in the fall.
We have included this month's results along with SC's state standards for comparison below. All results were within state standards.
Data from April 2022: