sampling point
River Duckow Above Confluence Weaver

Description	RIVER DUCKOW ABOVE CONFLUENCE WITH RIVER WEAVER
Sampling point ID	NW-88000637
Type	Freshwater – Rivers
Status	open
Location	easting northing: 365017 342007 lat lon: 52.974255, -2.522393
Area	Greater Manchester Merseyside And Cheshire
Sub-Area	Cheshire
Summary	198 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.

32 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Cu Filtered
Hardness
Magnesium-Mg
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
OMR Smpl Num
Oil & Grs Vs
Orthophospht
Oxygen Diss
Phenol Odour
PhenolicOdor
Sld NV@500C
Sld Sus@105C
Temp Water
Weth-Visibty
Weth7Dy-Prec
Weth7Dy-Temp
Weth7Dy-Vsy
WethPresPrec
WethPresTemp
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 198 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 13 Jun 2022 to 2 Mar 2023

Notation	Determinand	Units	13 Jun 2022 11:43	18 Jul 2022 10:40	15 Aug 2022 11:06	20 Sep 2022 11:13	4 Oct 2022 12:39	2 Nov 2022 10:47	9 Dec 2022 13:29	17 Jan 2023 10:58	3 Feb 2023 13:19	2 Mar 2023 12:23
0061	pH		8.2	8.2	8.2	8.11	8.01	7.69	8.12	7.89	8.13	8.23
0076	Temperature of Water	°C	13.3	16.6	17.8	12	12.5	10.6	2.3	3.6	8.8	6.6
0077	Conductivity at 25 C	μs/cm	937	954	890	924	925	737	866	629	800	903
0085	BOD : 5 Day ATU	mg/l	1.6	1.3	3.2	1.6	1.9	3.7	2.5	1.4	2.4	4.1
0111	Ammoniacal Nitrogen as N	mg/l	0.084	0.052	0.44	< 0.03	0.053	0.31	0.04	0.082	0.36	0.32
0116	Nitrogen, Total Oxidised as N	mg/l	7.8	6.7	7	8.7	6.7	13	9.6	9.8	9.1	8
0117	Nitrate as N	mg/l	7.73	6.67	6.89	8.69	6.66	12.8	9.56	9.76	9	7.82
0118	Nitrite as N	mg/l	0.066	0.029	0.11	0.012	0.036	0.22	0.039	0.044	0.097	0.18
0119	Ammonia un-ionised as N	mg/l	0.00195	0.00153	0.0142	< 0.00063	0.00116	0.00292	0.00041	0.00073	0.00601	0.00455
0135	Solids, Suspended at 105 C	mg/l	9.4	19	54	8.6	6.2	29	4.4	14	12	27
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	280	260	250	260	270	170	240	160	250	280
0172	Chloride	mg/l	63	83	73	72	62	51	47	32	44	53
0180	Orthophosphate, reactive as P	mg/l	0.27	0.39	0.6	0.39	0.34	0.36	0.13	0.14	0.14	0.11
9901	Oxygen, Dissolved, % Saturation	%	88.9	88.6	82.7	79.7	85.2	83.7	88.1	91.6	88.7	90.4
9924	Oxygen, Dissolved as O2	mg/l	9.28	8.61	7.84	8.56	9.05	9.29	12.1	12.1	10.3	11.1

Samples from 31 May 2018 to 6 May 2022

Notation	Determinand	Units	31 May 2018 10:59	28 Jun 2018 11:58	20 Aug 2018 11:24	13 Sep 2018 13:14	16 Nov 2018 11:29	30 Nov 2018 10:54	8 Feb 2019 12:49	14 Mar 2019 11:35	13 Apr 2022 13:10	6 May 2022 10:21
0061	pH		8.22	8.31	8.3	8.32	7.98	8.06	7.89	7.6	8.21	8.17
0076	Temperature of Water	°C	14.8	15	16.4	12.4	10.2	7.4	6.3	7.5	11.4	12.7
0077	Conductivity at 25 C	μs/cm	892	943	935	836	992	917	790	622	862	953
0085	BOD : 5 Day ATU	mg/l									3.3	16
0111	Ammoniacal Nitrogen as N	mg/l	0.042	0.039	< 0.03	0.034	< 0.03	0.238	0.321	0.21	0.14	2.5
0116	Nitrogen, Total Oxidised as N	mg/l	6.89	7.06	6.82	5.96	5.82	7.72	17.4	12.3	9.2	6.8
0117	Nitrate as N	mg/l	6.85	7.04	6.81	5.95	5.78	7.64	17.3	12.2	9.12	6.28
0118	Nitrite as N	mg/l	0.0357	0.0181	0.0092	0.0133	0.0398	0.0838	0.0757	0.0544	0.083	0.52
0119	Ammonia un-ionised as N	mg/l	0.00109	0.00102	< 0.00087	0.00074	< 0.00053	0.00359	0.00347	0.00128	0.00283	0.0555
0135	Solids, Suspended at 105 C	mg/l									40	43
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	284	278	290	254	270	244	177	152	240	290
0172	Chloride	mg/l									67	63
0180	Orthophosphate, reactive as P	mg/l	0.185	0.2	0.221	0.255	0.169	0.368	0.461	0.196	0.17	0.4
9901	Oxygen, Dissolved, % Saturation	%	94.6	93.3	86.2	90.2	70.6	78.3	92.4	86.9	95.2	68.2
9924	Oxygen, Dissolved as O2	mg/l	9.56	9.38	8.41	9.61	7.92	9.4	11.4	10.4	10.4	7.21

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sampling point River Duckow Above Confluence Weaver

Determinands

Sampling results

Samples from 13 Jun 2022 to 2 Mar 2023

Samples from 31 May 2018 to 6 May 2022

sampling point
River Duckow Above Confluence Weaver