sampling point
River Douglas At Squirrel Bridge Horwich

Description	RIVER DOUGLAS AT SQUIRREL BRIDGE HORWICH
Sampling point ID	NW-88003079
Type	Freshwater – Rivers
Status	open
Location	easting northing: 363097 412049 lat lon: 53.603682, -2.559147
Area	Cumbria And Lancashire
Sub-Area	Ribble / Douglas
Summary	39 samples taken between 2023 and 2013

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.

34 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
BOD ATU
C - Org Filt
Ca Filtered
Cd Filtered
Chloride Ion
Cond @ 20C
Cond @ 25C
Cr- Filtered
Cu BLM Bio
Cu Filtered
Fe- Filt
Hg Filtered
Mg Filtered
Mn BLM Bio
Mn- Filtered
N Oxidised
NH3 un-ion
Ni BLM Bio
Ni- Filtered
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Pb BLM Bio
Pb Filtered
Sld Sus@105C
Temp Water
TurbidityNTU
Zn BLM Bio
Zn- Filtered
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 10 Mar 2017 to 18 Sep 2023

Notation	Determinand	Units	10 Mar 2017 10:22	12 Sep 2017 12:14	15 Mar 2018 12:25	5 Sep 2018 12:19	1 Mar 2019 14:19	24 Sep 2019 13:18	9 Mar 2020 11:14	13 Sep 2021 11:25	13 Mar 2023 13:02	18 Sep 2023 11:55
0052	Lead, Dissolved	μg/l					0.647	0.75		0.58	1.1	0.73
0061	pH		7.92	8.18	7.92	7.86	7.66	7.45	7.64	6.82	7.45	7.2
0062	Conductivity at 20 C	μs/cm							88
0076	Temperature of Water	°C	6.5	14.9	4.4	16.3	6.2	15.3	5.7	15.9	5.7	16.3
0077	Conductivity at 25 C	μs/cm	104	101	114	102	110	119	94	90	104	98
0103	Mercury, Dissolved	μg/l					< 0.01	< 0.01		< 0.01	< 0.01	< 0.01
0106	Cadmium, Dissolved	μg/l					0.0264	4		< 0.01	0.045	0.016
0111	Ammoniacal Nitrogen as N	mg/l	0.0239	0.0051	0.0117	0.112	0.0149	0.18	0.014	0.22	0.0098	0.19
0116	Nitrogen, Total Oxidised as N	mg/l	0.636	0.228	0.622	0.212	0.782	0.39	0.68	0.1	0.54	0.13
0117	Nitrate as N	mg/l	0.633	0.225	0.62	0.185	0.78	0.384	0.677	0.089	0.538	0.117
0118	Nitrite as N	mg/l	0.00329	0.00282	0.00226	0.0266	0.0019	0.0058	0.0026	0.011	0.0018	0.013
0119	Ammonia un-ionised as N	mg/l	0.00028	0.00013	0.00012	0.00236	9.0e-05	0.00139	8.0e-05	0.00042	4.0e-05	0.00089
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	20	24	10	19	17	29	20	25	17	26
0180	Orthophosphate, reactive as P	mg/l	0.0182	0.0061	0.0195	0.0042	0.0047	0.032	0.008	0.019	0.0097	0.024
0235	Magnesium, Dissolved	mg/l					2.5	2.4		2.3	2.2	2.2
0239	Calcium, Dissolved	mg/l					7.57	10		7.1	7.5	8.7
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l					4.9	6.4	5.8	5.6	6.7	7.3
3377	Lead : BLM Bioavailable	μg/l					0.13	0.12		0.1	0.16	0.1
3408	Zinc, Dissolved	μg/l					4	19		6.7	23	24
3409	Chromium, Dissolved	μg/l					< 0.5	0.51		< 0.5	< 0.5	< 0.5
3410	Nickel, Dissolved	μg/l					1.4	1.4		1.1	1.5	1.4
3878	Nickel : BLM Bioavailable	μg/l					0.49	0.38		0.29	0.38	0.32
4820	Manganese : BLM Bioavailable	μg/l					11.4	40.9		150	17	98
4821	Copper : BLM Bioavailable	μg/l					0.11	0.17		0.1	0.09	0.08
4822	Zinc : BLM Bioavailable	μg/l					1.72	6.82		3	8	8.2
6396	Turbidity	ntu							3.1
6450	Copper, Dissolved	μg/l					2.11	4.8		2	2.7	2.5
6458	Manganese, Dissolved	μg/l					21.9	120		470	50	350
6460	Iron, Dissolved	μg/l					225	280		310	330	410
9901	Oxygen, Dissolved, % Saturation	%	98.9	92.5	101.5	76.5	98.7	94.2	88.7	65.1	96.5	67.8
9924	Oxygen, Dissolved as O2	mg/l	12.1	9.32	13.1	7.48	12.2	9.41	11.1	6.42	12.1	6.63

Samples from 5 Sep 2014 to 8 Sep 2016

Notation	Determinand	Units	5 Sep 2014 08:29	2 Oct 2014 07:36	5 Nov 2014 12:52	2 Dec 2014 09:03	9 Jan 2015 10:02	2 Feb 2015 13:05	16 Mar 2015 11:05	3 Sep 2015 08:21	14 Mar 2016 12:52	8 Sep 2016 12:34
0061	pH		7.2	7.8	7.57	7.9	7.7	7.95	7.33	8.12	8.2	7.7
0076	Temperature of Water	°C	16	14.8	10.7	7.6	5.3	3.1	5.2	16.1	4.9	17
0077	Conductivity at 25 C	μs/cm	114	101	105	109	110	118	112	107	102	98
0085	BOD : 5 Day ATU	mg/l	< 1	1.12	1.31	1.3	1.31	1.17	< 1
0111	Ammoniacal Nitrogen as N	mg/l	0.112	< 0.03	0.047	0.046	< 0.03	< 0.03	< 0.03	0.048	0.0157	0.125
0116	Nitrogen, Total Oxidised as N	mg/l	< 0.2	< 0.2	< 0.2	0.27	0.68	0.77	0.77	0.21	0.633	0.192
0117	Nitrate as N	mg/l	< 0.196	< 0.196	< 0.196	0.264	0.676	0.766	0.766	0.206	0.63	0.187
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	0.0056	< 0.004	< 0.004	< 0.004	< 0.004	0.00294	0.00462
0119	Ammonia un-ionised as N	mg/l	0.00051	< 0.00049	0.00034	0.00056	< 0.0002	< 0.00029	< 8.0e-05	0.00137	0.0002	0.00193
0135	Solids, Suspended at 105 C	mg/l	4.03	5.93	6.3	3.8	3.6	< 3	5.15
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	25	21	20	21	22	19	17	22	17	23
0172	Chloride	mg/l	13.4	11.6	11.5	12.3	12.6	14.4	13.8
0180	Orthophosphate, reactive as P	mg/l	< 0.02	< 0.01	0.019	< 0.01	0.01	< 0.01	0.051	0.0047	0.0082	0.0126
9901	Oxygen, Dissolved, % Saturation	%	95	98	93.6	96	100	93	102.9	90.3	96.1	78.5
9924	Oxygen, Dissolved as O2	mg/l	9.35	9.9	10.4	11.5	12.7	12.5	13.1	8.87	12.3	7.57

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sampling point River Douglas At Squirrel Bridge Horwich

Determinands

Sampling results

Samples from 10 Mar 2017 to 18 Sep 2023

Samples from 5 Sep 2014 to 8 Sep 2016

sampling point
River Douglas At Squirrel Bridge Horwich