sampling point
Darley Brook At Darley Hall

Description	DARLEY BROOK AT DARLEY HALL
Sampling point ID	NW-88000720
Type	Freshwater – Rivers
Status	open
Location	easting northing: 359894 364349 lat lon: 53.174716, -2.601471
Area	Greater Manchester Merseyside And Cheshire
Sub-Area	Cheshire
Summary	129 samples taken between 2023 and 2010

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.

15 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
pH

Displaying the twenty most recent samples. You can see all 129 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 10 Jun 2022 to 6 Mar 2023

Notation	Determinand	Units	10 Jun 2022 12:31	5 Jul 2022 11:49	10 Aug 2022 11:48	2 Sep 2022 10:31	4 Oct 2022 11:07	4 Nov 2022 13:18	2 Dec 2022 12:54	24 Jan 2023 13:45	13 Feb 2023 14:15	6 Mar 2023 10:27
0061	pH		8.15	7.83	7.8	7.47	7.94	7.7	7.66	8	8.13	8.26
0076	Temperature of Water	°C	16.8	15.8	18.9	17	13.6	10.5	6.6	4.1	6.7	6.7
0077	Conductivity at 25 C	μs/cm	451	461	453	488	444	460	449	476	495	509
0085	BOD : 5 Day ATU	mg/l	1.3	1.6	< 3	3.4	2.5	1.7	1.4	1.5	2.1	2.9
0111	Ammoniacal Nitrogen as N	mg/l	0.071	0.065	0.09	0.094	0.13	0.053	0.099	0.083	< 0.03	0.066
0116	Nitrogen, Total Oxidised as N	mg/l	1.5	2.1	1.9	2.3	1.3	1.8	5.2	6.2	6.4	5
0117	Nitrate as N	mg/l	1.45	2.06	1.85	2.26	1.24	1.77	5.16	6.17	6.38	4.98
0118	Nitrite as N	mg/l	0.049	0.041	0.053	0.036	0.056	0.032	0.041	0.029	0.018	0.024
0119	Ammonia un-ionised as N	mg/l	0.00213	0.00123	0.002	0.00086	0.00269	0.00051	0.00065	0.00098	< 0.00043	0.00094
0135	Solids, Suspended at 105 C	mg/l	11	13	8.8	69	8.3	5.4	5.1	4.9	4.5	4.8
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	140	140	160	170	150	150	130	130	140	140
0172	Chloride	mg/l	33	32	33	44	34	31	29	34	37	37
0180	Orthophosphate, reactive as P	mg/l	0.11	0.17	0.46	0.58	0.39	0.11	0.081	0.06	0.041	0.027
9901	Oxygen, Dissolved, % Saturation	%	92.1	83.9	78.9	69.1	84.9	78.5	91.5	88.3	98.8	97.7
9924	Oxygen, Dissolved as O2	mg/l	8.91	8.29	7.31	6.66	8.8	8.74	11.2	11.5	12.1	11.9

Samples from 6 May 2021 to 30 May 2022

Notation	Determinand	Units	6 May 2021 12:05	11 Jun 2021 09:00	6 Jul 2021 12:54	3 Aug 2021 10:17	9 Sep 2021 09:53	11 Oct 2021 14:03	3 Nov 2021 09:30	8 Apr 2022 13:19	3 May 2022 12:31	30 May 2022 14:49
0061	pH		7.98	7.72	8.94	7.96	8.01	8.01	7.9	8.57	8.08	7.92
0076	Temperature of Water	°C	10.3	18	18.5	17	18.8	13.7	9.1	9.8	14.1	15
0077	Conductivity at 25 C	μs/cm	479	500	376	415	457	462	472	436	421
0085	BOD : 5 Day ATU	mg/l	1.8	2.1	4.9	3.7	1.4	2.2	< 3	4.3		1.7
0111	Ammoniacal Nitrogen as N	mg/l	0.15	0.1	0.06	0.082	0.043	0.06	0.034	0.039		0.19
0116	Nitrogen, Total Oxidised as N	mg/l	5.8	4.3	1.2	1.3	1.5	1.9	1.7	4		1.7
0117	Nitrate as N	mg/l	5.75	4.23	1.15	1.26	1.48	1.87	1.68	3.98		1.61
0118	Nitrite as N	mg/l	0.052	0.066	0.051	0.036	0.022	0.031	0.021	0.023		0.086
0119	Ammonia un-ionised as N	mg/l	0.00267	0.00174	0.00203	0.00228	0.00149	0.00143	0.00046	0.0007		0.00417
0135	Solids, Suspended at 105 C	mg/l	8.6	11	12	11	6.5	4.1	6.3	17		3
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	140	160	110	130	150	150	160	140		140
0172	Chloride	mg/l	33	33	32	32	34	33	32	33		36
0180	Orthophosphate, reactive as P	mg/l	0.048	0.26	< 0.01	0.099	0.18	0.14	0.081	< 0.01		0.12
9901	Oxygen, Dissolved, % Saturation	%	94.2	81.1	77.7	88.7	83.8	93	91.1	102	92.4
9924	Oxygen, Dissolved as O2	mg/l	10.5	7.66	7.26	8.55	7.78	9.62	10.5	11.5	9.48

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sampling point Darley Brook At Darley Hall

Determinands

Sampling results

Samples from 10 Jun 2022 to 6 Mar 2023

Samples from 6 May 2021 to 30 May 2022

sampling point
Darley Brook At Darley Hall