- Lake Forest Association (LFA) - Caretakers of Eastwood Lake in Chapel Hill, NC.
Water samples were collected beginning at 8:45 am on Monday July 10, 2017, by Anthony Henage. I measured 0.1inch of rainfall in the watershed 2 days prior to the sampling. The following results are very good.
#1 Dock less than 1 cfu
#2 Cedar Fork Creek 12 cfu
#3 Booker Creek 2 cfu
Caution level is individual reading above 400 cfu, or average above 200 cfu. CFU = colony forming units per 100ml.
Lake water temperature ranged from 86-87F(30-30.5C). The SECCI clarity reading was 22 inches.
The date for this water sampling was adjusted from its normal time; the week before July 4, because we added an extra sampling in early June, and felt it would be good to spread the dates for the remainder of our sampling more evenly throughout the summer. We are now back on our normal schedule and the next sampling will take place before Labor Day, unless we have some unusual weather or other event in our watershed.
Anthony took the samples for me because I broke my arm in late June and am not yet able to paddle the kayak.
The lake water has gotten warm earlier than normal, this year. The tributary creeks are still flowing steadily and we are getting regular rain. The SECCI reading of 22 indicates we have significant turbidity. This is in the normal range, probably in keeping with getting regular rain and having very warm weather. The water in the sample bottles was without a color tint, so it is probably neither a big influx of silt nor an impending algae bloom. There was a light dusting of debris on the surface of the lake, and a pretty large flock of Canada Geese that moved from the park beach area over to the Cedar Fork Creek inlet while we were sampling.