sampling point
Checkley Bk U/S R Lea

Description	CHECKLEY BK U/S R LEA
Sampling point ID	NW-88000643
Type	Freshwater – Rivers
Status	open
Location	easting northing: 375602 346641 lat lon: 53.016498, -2.365121
Area	Greater Manchester Merseyside And Cheshire
Sub-Area	Cheshire
Summary	110 samples taken between 2023 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 110 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 20 Jun 2022 to 6 Mar 2023

Notation	Determinand	Units	20 Jun 2022 12:31	19 Jul 2022 12:37	15 Aug 2022 11:58	22 Sep 2022 12:02	6 Oct 2022 13:20	1 Nov 2022 12:02	13 Dec 2022 12:12	26 Jan 2023 14:50	9 Feb 2023 11:23	6 Mar 2023 11:27
0061	pH		8.48	8.04	8.34	8.22	8.13	7.83	8.17	8.09	8.25	8.14
0076	Temperature of Water	°C	13.4	18.8	16.9	12.6	12.6	11.9	4.4	5.9	5.2	6.8
0077	Conductivity at 25 C	μs/cm	1180	1174	1254	1196	930	621	952	870	920	1108
0085	BOD : 5 Day ATU	mg/l	1	< 1	1	< 1	1.4	3	1.4	1.5	1.6	2.1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.039	< 0.03	< 0.03	0.084	0.046	0.039	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	2.8	3.4	2.6	2.6	2.5	4.1	4.8	5.6	5	4.2
0117	Nitrate as N	mg/l	2.79	3.4	2.59	2.6	2.49	4.06	4.76	5.57	4.98	4.19
0118	Nitrite as N	mg/l	0.01	0.0044	0.01	0.0043	0.011	0.039	0.04	0.027	0.016	0.015
0119	Ammonia un-ionised as N	mg/l	< 0.0007	< 0.00104	0.00118	< 0.00066	< 0.00066	0.0012	0.00056	0.00053	< 0.00038	< 0.00043
0135	Solids, Suspended at 105 C	mg/l	7.6	4.1	4.8	3.5	5.3	36	4.9	7.2	11	11
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	330	320	350	340	260	170	270	220	260	300
0172	Chloride	mg/l	56	54	58	58	58	43	46	63	50	80
0180	Orthophosphate, reactive as P	mg/l	0.019	< 0.01	0.052	0.017	< 0.01	0.026	0.019	0.026	0.011	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	94.7	95.1	91	89.5	98.7	97.3	88.2	88	89	98.1
9924	Oxygen, Dissolved as O2	mg/l	9.86	8.83	8.79	9.49	10.5	10.5	11.4	11	11.3	11.9

Samples from 12 Jul 2016 to 12 May 2022

Notation	Determinand	Units	12 Jul 2016 11:39	17 Aug 2016 10:10	20 Sep 2016 10:36	18 Nov 2016 11:55	29 Nov 2016 11:49	9 Feb 2017 11:31	15 Mar 2017 13:00	21 Apr 2017 14:06	25 Apr 2022 11:36	12 May 2022 14:19
0061	pH		8.04	8.2	8.18	7.97	8.01	8	8.12	8.27	7.76	7.7
0076	Temperature of Water	°C	14.2	19.6	13.4	6.5	4	4.9	10.1	11.3	9.5	12.2
0077	Conductivity at 25 C	μs/cm	879	1115	1094	733	934	771	863	1046	957	916
0085	BOD : 5 Day ATU	mg/l									1.2	1.5
0111	Ammoniacal Nitrogen as N	mg/l	0.0308	0.0119	0.0151	0.101	0.0481	0.052	0.0323	0.0178	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	1.99	2.57	2.41	3.37	3.93	4.9	4.49	3.51	4.1	3.5
0117	Nitrate as N	mg/l	1.97	2.57	2.4	3.34	3.91	4.87	4.47	3.49	4.09	3.49
0118	Nitrite as N	mg/l	0.0156	0.0046	0.00625	0.0326	0.0214	0.0257	0.0223	0.0162	0.0065	0.011
0119	Ammonia un-ionised as N	mg/l	0.00076	0.00044	0.00035	0.00133	0.00056	0.00065	0.00059	0.00036	< 0.00031	< 0.00033
0135	Solids, Suspended at 105 C	mg/l									6.9	8.4
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	254	341	310	199	253	198	234	301	280	270
0172	Chloride	mg/l									46	48
0180	Orthophosphate, reactive as P	mg/l	0.0212	0.0201	0.0252	0.0279	0.0317	0.033	0.0235	0.0067	< 0.01	< 0.01
9901	Oxygen, Dissolved, % Saturation	%	90.4	81.6	91.6	88.5	104.6	96.7	108.5	97.2	94.8	94.4
9924	Oxygen, Dissolved as O2	mg/l	9.25	7.46	9.54	10.9	13.7	12.4	12.2	10.6	10.8	10.1

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sampling point Checkley Bk U/S R Lea

Determinands

Sampling results

Samples from 20 Jun 2022 to 6 Mar 2023

Samples from 12 Jul 2016 to 12 May 2022

sampling point
Checkley Bk U/S R Lea