Water Quality Testing:Tottenham Lock, North

 

Water Quality Testing: Tottenham Lock, North
Date Temp DO PH Nitrate Phosphate (Total) Phosphate (Reactive) Turbidity E-Coli Bacteria Ammonia Observations
14/01/14 7.1 92  7.815 0.3 * *  41.9 14 * warmer weather,higher water level
11/12/13 5.5 90 7.895 3.1 * * 0.814 * *  
27/11/13 8.3 82 7.856 3.3 * * 3.71 0 *  
16/10/13 12.3 83 8.028 2.3 * 0.8 0.234 4000 0.5 Moored boats
2/10/13 16.9 65 7.69 2.8 * 5.4 8.71 0 0.5 No boats, murkey looking
18/9/13 17.4 62 8.548 2 * 0.7 0.467 1000 0.5 Moored boats, film of pollution
4/9/13 24.3 74 8.363 1.1 0.0 0.7 0.9 0 0.5  
20/8/13 23 65 8.32 1.5 * 0.7 0.9 0 0.5 Clear looking
5/8/13 21.7 68 8.45 2.6 * 1.4 1.1 0 0.5 Film of pollution
17/7/13 22 81 8.37 1.1 * 0.8 2.1 0 0.5 Moored boats, no weed
2/7/13 19 79 8.4 1.9 0.0 0.8 1.9 0 0.5 Moored boats
18/6/13 20.1 75 8.21 1.3 0.0 0.9 1.2 1000 0.5 Moored boats, clear looking
5/6/13 18 90 8.29 1.4 0.0 0.8 1.1 0 0.5 Fast flow, clear
22/5/13 14 80 8.68 2.2 0.0 1.8 5.5 0 0.5 Signs of pollution, film on surface
7/5/13 18 83 8.48 3.6 * 1.8 1.5 0 *  
30/4/13 15.9 84 8.3 1.6 0.0 1.4 1.9 0 * Works ended on site
20/3/13 6.6 80 8.28 3.8 0.0 1.6 10.1 0 * Rubbish, film of pollution
6/3/13 8.7 86 8.29 6 0.0 1.7 18.1 0 * Murkey water, building works on nearby towpath
20/2/12 5.6 92 7.73 7.2 1.9 0.0 36.0 0 * Water looks brown, towpath ahead closed due to building works
4/2/13 8 85 7.95 3 0.5 1.7 7.4 0 *  
23/1/13 3 90 7.86 3.2 0.0 1.3/1.5 9.4 2000 * Ice sheet on canal
9/1/13 10 75 7.63 6 0.7 5.1 33.0 1000 * Cloudy water, weeds
10/12/12 6.8 85 7.76 7.5 25.1 9.8 64.0 0 * Cloudy water
28/11/12 8.9 89 7.85 4.7 0.3 0.8 4.4 1000 * Boats & hopper moored on site
14/11/12 13.9 80 8.02 1.5 1.3 0.8 2.0 * * Boats & hopper moored on site  
29/10/12 12.2 79 8.34 0.8 3.9 0.8 13.0 1000 *  
15/10/12 13 79 8.52 1.5 1.5 0.6 1.1 0 *  
3/10/12 16 70 8.64 0.8 0.0 0.9 9.4 0 * Boats & hopper moored on site
24/9/12 16.6 70 8.55 0.2 0.6 0.7 6.3 2000 * Boats & hopper moored on site
5/9/12 21 85 8.80 0.1 0.0 0.9 2.3 0 * Boats & hopper moored on site & no weed
22/8/12 20.5 77 8.70 0.9 0.9 0.7 8.4 0 * Boats & hopper moored on site. Water Taxi in operation
8/8/12 19.6 87 8.69 0.3 1.4 0.9 4.7 0 *  
25/7/12 22 68 8.71 1.9 2.5 2.2 11.6 0 *  
9/7/12 17.2 96 8.58 1.0 1.5 0.8 10.9 0 *  
27/6/12 21.8 59 8.69 1.2 2.5 2.1 5.4 1000 *  
12/6/12 14.8 91 8.11 0.6 * * 8.5 22000 *  
30/5/12 22.9 97 8.73 1.5 2.3 2.1 6.5 * *  
16/5/12 15 90 7.83 2.6 0.6 2.4 5.5 1000 *  
1/5/12 15.8 * * 1.9 0.0 1.5 16.0 * *  
18/4/12 10.8 80 7.30 2.6 0.0 0.9 9.5 300 *  
21/3/12 16.3 89 7.40 0.8 0.8 1.0 2.2 0 *  
7/3/12 10 89 7.50 4.4 0.0 1.2 14.3 500 * Moored boats
22/2/12 10 65 7.30 1.0 1.3 2.2 1.7 0 * Moored boats
8/2/12 2 77 7.10 3.0 0.0 1.5 3.9 100 * Ice covering surface of canal
25/1/12 9 83 7.10 1.9 0.0 1.9 3.3 11000 * No weed cover
11/1/12 8 66 7.20 2.8 0.0 1.5 2.9 0 *  
5/12/11 8.8 73 7.00 4.2 0.0 0.5 3.8 90000 *  
21/11/11 10.6 66 7.00 2.2 0.0 1.3 9.7 0 *  
11/11/11 12 27 7.10 16.4 0.2 0.5 1.9 0 * Less boats in sampling area. Water very clear
24/10/11 17.2 50 8.32 2.6 0.0 0.1 1.0 0 *  
10/10/11 17.4 46 8.30 1.9 0.0 1.0 0.6 0 *  
27/9/11 17.7 4 8.20 2.6 0.0 1.4 0.7 100 * High levels of poluttion
15/9/11 18 5 8.31 2.1 0.0 1.8 0.8 0 *  
30/8/11 17.5 4.5 8.34 2.2 2.2 2.3 1.6 0 *  
15/8/11 21.5 5 8.32 4.0 0.0 1.5 1.4 0 *  
1/8/11 22 60 9.09 1.2 0.0 2.6 21.0 0 * Lots of moored boats, algae & weed
18/7/11 18.61 57 8.15 2.3 2.3 2.5 0.9 400 *  
4/7/11 22 73 7.49 2.9 0.0 1.4 1.2 0 *  
20/6/11 * * 7.67 3.3 0.0 2.8 0.7 0 *  
6/6/11 * * 7.79 0.4 1.1 2.1 2.1 55000 *  
17/5/11 17.2 61 8.73 3.8 0.0 2.2 2.0 * *