Water Quality Sampling Report for 2007

The water testing protocol for the 2007 season employs the same updated protocol which was adopted in 2006. The main change in 2006 was the addition of two extra test samples per testing date. The purpose of these additional samples is to provide comparatives for evaluating sampling and testing procedures to ensure continuity of results. One of the new additional samples is a duplicate sample from an existing site being tested. The site chosen for the duplicate sample will change from one test date to the next. Using the example of the 5-27-07 testing date, Site 8 (Transfer Station/Devil's Elbow) was chosen as the duplicate. The second additional sample in the new protocol is a blank control sample taken from water that is known to be sterile, preferably from the process used to sterilize the water testing sample collection containers themselves.

Date	Site1	Site 3	Site 4	Site 5	Site 6	Site 7	Site 8	Site 12	Site 13	Site 14	Duplicates		Blank
5-27-07	TC 200	TC 33	TC 5	TC 19	TC 16	TC 11	TC 8	TC 13	TC 434	TC 33	Site 8	TC 5	TC <3
	EC 25	EC <3	EC 3	EC <3	EC <3	EC <3	EC <3	EC 3	EC 62	EC <3		EC <3	EC <3
6-17-07	TC >2424	TC 43	TC 255	TC 65	TC 90	TC 114	TC 489	TC 90	TC 350	TC 62	Site 13	TC 328	TC <3
	EC 49	EC <3	EC 3	EC 3	EC <3	EC <3	EC 3	EC 13	EC 25	EC 3		EC 11	EC <3
7-3-07	TC >2424	TC 76	TC 46	TC 30	TC 13	TC 46	TC 30	TC 151	TC 25	TC 43	Site 4	TC 33	TC <3
	EC 90	EC 3	EC <3	EC 3	EC <3	EC 3	EC 3	EC <3	EC <3	EC 5		EC <3	EC <3
8-7-07	TC >2424	TC 62	TC 55	TC 55	TC 22	TC 136	TC 59	TC 102	TC 136	TC 69	Site 3	TC 52	TC <3
	EC 83	EC <3	EC 5	EC 5	EC <3	EC 3	EC <3	EC 3	EC <3	EC 5		EC <3	EC <3
8-27-07	TC >2424	TC 156	TC 136	TC 43	TC 54	TC 114	TC 52	TC 119	TC 106	TC 55	Site 6	TC 59	TC <3
	EC 136	EC 5	EC 5	EC <3	EC 5	EC 8	EC 3	EC 13	EC 8	EC <3		EC 5	EC <3
9-3-07	TC 307	TC 132	TC 156	TC 13	TC 33	TC 65	TC 151	TC 151	TC 171	TC 161	Site 5	TC 36	TC <3
	EC 11	EC 8	EC 3	EC <3	EC 3	EC 11	EC 16	EC 25	EC 11	EC <3		EC 3	EC <3
9-17-07	TC 182	TC 69	TC 46	TC 28	TC 13	TC 30	TC 46	TC 65	TC 119	TC 65	Site 12	TC 87	TC <3
	EC 3	EC 3	EC <3	EC <3	EC <3	EC <3	EC 5	EC 16	EC 19	EC <3		EC 11	EC <3
10-8-07	TC >2424	TC 79	TC 25	TC 16	TC 25	TC 11	TC 87	TC 13	TC 187	TC 52	Site 7	TC 16	TC <3
	EC 188	EC 3	EC <3	EC <3	EC <3	EC <3	EC 3	EC 3	EC 30	EC 5		EC <3	EC <3
10-20-07	TC 654	TC 16	TC 33	TC 79	TC 46	TC 39	TC 46	TC 83	TC 76	TC 39	Site 1	TC 740	TC <3
	EC 79	EC <3	EC 13	EC 8	EC 13	EC 3	EC 3	EC 19	EC 16	EC 5		EC 76	EC <3

Spot water samples are also taken occasionally at site locations not regularly tested. The following table shows the locations, dates, and results of these spot sample tests.

5/27/07 Spot A Spot H Swing Bridge (east side) Anchor Island Bridge TC 22 TC 5 EC 5 EC 3

6/17/07 Spot A Spot J Swing Bridge (east side) Parry Harbor (Old Oil Pier) TC 65 TC 240 EC <3 EC 8

7/3/07 Spot A Spot K Swing Bridge (east side) Nutter Bay Transfer Station (closed) TC 46 TC 13 EC 19 EC 3

8/7/07 Spot A Spot L Swing Bridge (east side) UV Control TC 177 TC <3 EC 16 EC <3

8/27/07 Spot A Spot M Spot N Swing Bridge (east side) Big Sound Marina Bredin Island TC 46 TC 146 TC 87 EC 19 EC 25 EC 30

9/3/06 Spot A Spot N Swing Bridge Bredin Island TC 106 TC 69 EC 5 EC 3

9/17/07 Spot A Spot N Swing Bridge (east side) Bredin Island TC 39 TC 28 EC 8 EC <3

10/20/07 Spot P Holiday Cove Marina TC 76 EC 5

The TC numbers indicate the most probable number of colony forming units of coliforms per 100 ml sample.

Coliform bacteria are introduced for the most part by warm blooded mammals. A moderate amount of total coliforms is considered a normal background level.

The EC numbers indicate the most probable number of colony forming units of E. Coli per 100 ml sample.

In this area E. coli is introduced almost entirely by human activity. Its presence usually indicates the presence of other serious pathogens.

 

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