sampling point
Weir Bk Knockin

Description	WEIR BROOK AT KNOCKIN
Sampling point ID	MD-30547220
Type	Freshwater – Rivers
Status	closed
Location	easting northing: 333560 322290 lat lon: 52.794057, -2.986746
Area	Shropshire Herefordshire Worcestershire And Gloucestershire
Sub-Area	Shropshire & Wye
Summary	39 samples taken between 2010 and 2007

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.

16 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
Cond @ 20C
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Temp Water
Weth-Visibty
WethPresPrec
WethPresTemp
pH

Displaying the twenty most recent samples. You can see all 39 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 26 Jun 2009 to 22 Mar 2010

Notation	Determinand	Units	26 Jun 2009 09:05	15 Jul 2009 08:45	18 Aug 2009 07:55	1 Oct 2009 09:00	20 Oct 2009 08:05	18 Nov 2009 13:15	8 Dec 2009 09:00	12 Jan 2010 10:30	15 Feb 2010 12:45	22 Mar 2010 09:45
0061	pH		8	7.6	8	7.5	7.8	7.6	7.6	6.2	7.7	7.8
0076	Temperature of Water	°C	14.4	15.1	14.1	12.7	9.6	11	7.1	4.3	6.9	8
0077	Conductivity at 25 C	μs/cm	601	561	574	615	613	571	648	693	749	648
0111	Ammoniacal Nitrogen as N	mg/l	0.042	< 0.03	< 0.03	0.031	< 0.03	0.108	0.063	0.086	0.056	0.054
0116	Nitrogen, Total Oxidised as N	mg/l	14	11.1	14	13	12.7	11.4	12.8	13.8	13.5	14.2
0117	Nitrate as N	mg/l	14	11.1	14	13	12.7	11.3	12.7	13.8	13.5	14.2
0118	Nitrite as N	mg/l	0.0378	0.0409	0.0413	0.0336	0.0256	0.0515	0.0566	0.0225	0.0346	0.0237
0119	Ammonia un-ionised as N	mg/l	0.00106	< 0.00032	< 0.00074	0.00022	< 0.00034	0.00085	0.00037	2.0e-05	0.00041	0.00054
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	183	149	181	175	193	153	173	183	177	184
0180	Orthophosphate, reactive as P	mg/l	0.364	0.452	0.242	0.356	0.336	0.25	0.186	0.184	0.204	0.186
9901	Oxygen, Dissolved, % Saturation	%	88.9	86.9	84.9	93.9	75.7	95.1	83.4	86.3	100.9	84.9
9924	Oxygen, Dissolved as O2	mg/l	9.06	8.72	8.71	9.94	8.61	10.5	10.1	11.2	12.3	10

Samples from 14 Aug 2008 to 8 Jun 2009

Notation	Determinand	Units	14 Aug 2008 09:00	9 Sep 2008 08:45	23 Oct 2008 08:25	26 Nov 2008 12:30	18 Dec 2008 08:20	7 Jan 2009 08:40	18 Feb 2009 08:55	11 Mar 2009 08:05	13 May 2009 08:40	8 Jun 2009 08:00
0061	pH		7.3	7.1	7.2	7.1	7.3	7.2	7.1	7.5	7.8	7.9
0076	Temperature of Water	°C	12.9	12.9	9.1	7.4	8.1	3	7	5.9	8.3	10.3
0077	Conductivity at 25 C	μs/cm	697	656	641	698	717	669	719	633	612	617
0111	Ammoniacal Nitrogen as N	mg/l	0.032	0.073	< 0.03	0.08	0.105	0.059	0.054	< 0.03	< 0.03	0.038
0116	Nitrogen, Total Oxidised as N	mg/l	12.2	11.1	12.7	12.5	12.3	13.8	13.4	12.8	13.6	12.8
0117	Nitrate as N	mg/l	12.2	11	12.7	12.5	12.3	13.8	13.4	12.8	13.6	12.8
0118	Nitrite as N	mg/l	0.0361	0.054	0.0262	0.0268	0.0327	0.0173	0.0329	0.0099	0.0269	0.023
0119	Ammonia un-ionised as N	mg/l	0.00015	0.00021	< 8.0e-05	0.00015	0.00034	0.0001	0.0001	< 0.00013	< 0.00031	0.00056
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	174	164	178	174	170	184	185	186	153	179
0180	Orthophosphate, reactive as P	mg/l	0.184	0.153	0.195	0.145	0.137	0.216	0.149	0.168	0.229	0.248
9901	Oxygen, Dissolved, % Saturation	%	78.7	91.7	88.9	95.1	84.9	96.1	98.1	97.3	80.3	80.1
9924	Oxygen, Dissolved as O2	mg/l	8.29	9.66	10.2	11.4	10	12.9	11.9	12.1	9.43	8.96

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sampling point Weir Bk Knockin

Determinands

Sampling results

Samples from 26 Jun 2009 to 22 Mar 2010

Samples from 14 Aug 2008 to 8 Jun 2009

sampling point
Weir Bk Knockin