sampling point
G.U.C. At Ealing Road, Alperton

Description	G.U.C. AT EALING ROAD, ALPERTON
Sampling point ID	TH-PGPR0010
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 517955 183640 lat lon: 51.53934, -0.300588
Area	Hertfordshire And North London
Sub-Area	L&W Herts & North London
Summary	88 samples taken between 2007 and 2000

Determinands identify a property which can be measured on a sample or the sampling environment, together with the units in which the result of that measurement will be expressed.

18 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
CHLOR A
CHLOROPHYLL
Chloride Ion
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
SI-GQA
Temp Water
Type of Flow
pH

Displaying the twenty most recent samples. You can see all 88 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 23 Oct 2006 to 12 Jun 2007

Notation	Determinand	Units	23 Oct 2006 12:00	19 Nov 2006 11:55	26 Nov 2006 11:55	10 Dec 2006 11:10	15 Dec 2006 14:00	27 Dec 2006 13:15	12 Feb 2007 14:15	4 May 2007 13:30	4 Jun 2007 11:50	12 Jun 2007 13:15
0061	pH		7.78	7.82	7.76	7.87	7.91	7.81	8.14	7.8	7.76	7.72
0076	Temperature of Water	°C	14.21	8.52	9.57	6.33	9.35	5.62	6.5	17.01	19.17	21.31
0085	BOD : 5 Day ATU	mg/l	1.2	1.5	4.7	2.1	< 1	1.2	1.8	1.8	2	2.2
0111	Ammoniacal Nitrogen as N	mg/l	0.24	0.092	0.068	0.1	0.094	0.121	< 0.03	0.256	0.134	0.161
0116	Nitrogen, Total Oxidised as N	mg/l	2.91	3.63	3.03	3.73	5.05	5.04	5.8	3.25	2.26	2.04
0117	Nitrate as N	mg/l	2.85	3.59	2.99	3.69	5.01	5.01	5.77	3.16	2.19	1.99
0118	Nitrite as N	mg/l	0.0637	0.0438	0.042	0.0433	0.0379	0.0342	0.0273	0.0871	0.0718	0.0543
0119	Ammonia un-ionised as N	mg/l	0.00362	0.001	0.0007	0.00104	0.00133	0.00104	< 0.00042	0.00496	0.00278	0.00357
0180	Orthophosphate, reactive as P	mg/l	0.111	0.179	0.15	0.177	0.193	0.229	0.269	0.112	0.075	0.103
3267	Type of flow as description		3	3	3	3	3	3	3	3	3	3
7887	Chlorophyll : Acetone Extract	μg/l	10.7	5.2	3.9	2.2	3.5	1.8	5.1	19.3	19.4	29.4
9901	Oxygen, Dissolved, % Saturation	%	52	63	74	65	75	69	83	62	73	65
9924	Oxygen, Dissolved as O2	mg/l	5.32	7.36	8.42	8.01	8.58	8.66	10.2	5.98	6.73	5.75

Samples from 2 Oct 2005 to 17 Sep 2006

Notation	Determinand	Units	2 Oct 2005 12:10	6 Nov 2005 10:25	20 Nov 2005 10:55	4 Dec 2005 10:50	19 Mar 2006 13:00	26 Apr 2006 14:10	21 May 2006 11:00	25 Jun 2006 10:55	9 Jul 2006 10:20	17 Sep 2006 10:35
0061	pH		7.96	8.02	8.02	7.99	8.47	8.61	8.32	8.25	8.02	7.6
0076	Temperature of Water	°C	14.04	12.28	4.44	5.99	6.04	14.21	15.2	21.24	20.37	19.74
0085	BOD : 5 Day ATU	mg/l	< 2.92	1.78	1.23	1.56	3.1	4.6	2.7	3.6	2	1.9
0111	Ammoniacal Nitrogen as N	mg/l	0.135	0.145	0.096	0.16	< 0.03	< 0.03	0.058	0.08	0.249	0.425
0116	Nitrogen, Total Oxidised as N	mg/l	4.28	5.48	4.95	5.78	9.08	4.66	4.24	2.52	5.4	1.5
0117	Nitrate as N	mg/l	4.22	5.4	4.9	5.73	9.03	4.62	4.16	2.44	5.31	1.42
0118	Nitrite as N	mg/l	0.0629	0.0772	0.0455	0.0495	0.0527	0.0431	0.0752	0.0815	0.0912	0.0772
0119	Ammonia un-ionised as N	mg/l	0.00302	0.00312	0.00116	0.00213	< 0.00041	< 0.00074	0.00155	0.0033	0.00964	0.0064
0180	Orthophosphate, reactive as P	mg/l	0.209	0.22	0.297	0.36	0.102	0.097	0.041	0.079	0.099	0.064
3267	Type of flow as description		3	3	3	3	3	3	3	3	3	3
7887	Chlorophyll : Acetone Extract	μg/l	19.5	8.9	3.3	4.4	44.6	97.7	40.3	50.9	23.9	16.8
9901	Oxygen, Dissolved, % Saturation	%	64	70	66	76	115	125	94	112	65	35
9924	Oxygen, Dissolved as O2	mg/l	6.57	7.48	8.54	9.45	14.3	12.8	9.41	9.91	5.85	3.19

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sampling point G.U.C. At Ealing Road, Alperton

Determinands

Sampling results

Samples from 23 Oct 2006 to 12 Jun 2007

Samples from 2 Oct 2005 to 17 Sep 2006

sampling point
G.U.C. At Ealing Road, Alperton