sampling point
Blackburn's Brook D/S Of Rostherne Mere

Description	BLACKBURN'S BROOK D/S OF ROSTHERNE MERE
Sampling point ID	NW-88002598
Type	Freshwater – Rivers
Status	open
Location	easting northing: 375304 384023 lat lon: 53.352498, -2.372465
Area	Greater Manchester Merseyside And Cheshire
Sub-Area	Manchester
Summary	166 samples taken between 2022 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.

24 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Chloride Ion
Cond @ 20C
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
OMR Smpl Num
Orthophospht
Oxygen Diss
Sld NV@500C
Sld Sus@105C
Temp Water
Weth-Visibty
Weth7Dy-Prec
Weth7Dy-Temp
Weth7Dy-Vsy
WethPresPrec
WethPresTemp
pH

Displaying the twenty most recent samples. You can see all 166 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 18 Jun 2021 to 3 Mar 2022

Notation	Determinand	Units	18 Jun 2021 10:29	14 Jul 2021 12:07	6 Aug 2021 08:33	8 Sep 2021 14:16	15 Oct 2021 10:06	3 Nov 2021 09:32	9 Dec 2021 14:03	6 Jan 2022 10:30	8 Feb 2022 12:58	3 Mar 2022 11:40
0061	pH		8.58	7.79	7.92	8.23	7.63	7.26	7.19	7.64	7.65	7.65
0076	Temperature of Water	°C	18.8	19.6	18.6	19.8	12.5	9.5	6.2	5.1	6.7	6.3
0077	Conductivity at 25 C	μs/cm	379	386	367	373	390	312	221	375	368	371
0085	BOD : 5 Day ATU	mg/l	3.5	2.2	< 3	2.8	< 3	< 3	< 3	< 3	< 3	1.2
0111	Ammoniacal Nitrogen as N	mg/l	0.088	0.048	0.083	0.052	0.068	0.048	0.13	0.067	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.49	0.43	< 0.2	< 0.2	0.22	1.7	2.1	1.1	1.3	1.3
0117	Nitrate as N	mg/l	0.479	0.402	0.195	< 0.196	0.208	1.68	2.08	1.09	1.3	1.3
0118	Nitrite as N	mg/l	0.011	0.028	0.0052	< 0.004	0.012	0.022	0.019	0.014	< 0.004	0.005
0119	Ammonia un-ionised as N	mg/l	0.00304	0.0011	0.00237	0.00193	0.00064	0.00016	0.00028	0.00037	< 0.00019	< 0.00019
0135	Solids, Suspended at 105 C	mg/l	6.7	3.9	5.2	6.7	< 3	19	67	3.9	3.6
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	120	120	110	130	120	91	57	120	120	120
0172	Chloride	mg/l	30	29	28	29	29	23	19	28	27	28
0180	Orthophosphate, reactive as P	mg/l	0.047	0.016	< 0.02	0.013	0.018	0.12	0.18	0.16	0.16	0.15
9901	Oxygen, Dissolved, % Saturation	%	61.2	64.4	61.9	76.6	66.2	43.5	86.7	68.4	80.4	87
9924	Oxygen, Dissolved as O2	mg/l	5.68	5.89	5.77	6.97	7.04	4.96	10.7	8.7	9.82	10.7

Samples from 25 Jul 2019 to 18 May 2021

Notation	Determinand	Units	25 Jul 2019 11:30	19 Aug 2019 11:04	4 Sep 2019 13:03	1 Oct 2019 10:47	15 Nov 2019 12:56	3 Dec 2019 11:21	8 Jan 2020 12:03	7 Feb 2020 13:34	6 Mar 2020 11:10	18 May 2021 09:30
0061	pH		7.92	7.5	7.65	7.11	7.37	7.47	7.58	7.62	7.96	7.84
0076	Temperature of Water	°C	22.3	16.6	16.5	13.4	8	5.8	6.3	5.3	5.1	12
0077	Conductivity at 25 C	μs/cm	388	399	381	271	378	391	394	390	375	343
0085	BOD : 5 Day ATU	mg/l	2.2	2.5	2.3	2.9	< 1	< 3	< 1	1.3	< 1	1.8
0111	Ammoniacal Nitrogen as N	mg/l	0.067	0.056	0.097	0.17	0.052	0.14	0.036	0.039	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	0.26	0.2	2	0.84	1.2	1.3	1.4	1.4	1.3
0117	Nitrate as N	mg/l	0.19	0.244	0.184	1.95	0.817	1.18	1.29	1.39	1.39	1.29
0118	Nitrite as N	mg/l	0.0099	0.016	0.016	0.048	0.0233	0.016	0.0056	0.0062	0.0059	0.0086
0119	Ammonia un-ionised as N	mg/l	0.0025	0.00053	0.00129	0.00052	0.00019	0.00056	0.00019	0.00021	< 0.00035	< 0.00044
0135	Solids, Suspended at 105 C	mg/l	5.1	8.8	9.2	41	5.53	< 3	4.1	7	4.8	7.5
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	110	120	120	87	100	120	120	120	120	100
0172	Chloride	mg/l	34	31	32	14	28.9	31	30	30	28	23
0180	Orthophosphate, reactive as P	mg/l	0.053	0.093	0.092	0.27	0.13	0.19	0.19	0.18	0.15	0.048
9901	Oxygen, Dissolved, % Saturation	%	58.6	43.4	50.9	57.2	97.6	52.6	70.3	86.1	87.4	85.6
9924	Oxygen, Dissolved as O2	mg/l	5.08	4.22	4.96	5.96	11.5	6.57	8.67	10.9	11.1	9.2

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sampling point Blackburn's Brook D/S Of Rostherne Mere

Determinands

Sampling results

Samples from 18 Jun 2021 to 3 Mar 2022

Samples from 25 Jul 2019 to 18 May 2021

sampling point
Blackburn's Brook D/S Of Rostherne Mere