sampling point
River Dalch U/S Lapford Stw

Description	RIVER DALCH ABOVE LAPFORD STW
Sampling point ID	SW-73040211
Type	Freshwater – Rivers
Status	open
Location	easting northing: 273629 107623 lat lon: 50.854273, -3.796688
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	125 samples taken between 2018 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.

26 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
Calcium - Ca
Cond @ 25C
Cu Filtered
Hardness
Hdnss Ca
Hdnss Mg
Magnesium-Mg
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Potassium- K
Temp Water
Type of Flow
WethPresPrec
WethPresTemp
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 125 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 5 Apr 2017 to 14 May 2018

Notation	Determinand	Units	5 Apr 2017 10:45	1 Jun 2017 09:15	15 Aug 2017 10:45	4 Sep 2017 12:55	12 Oct 2017 10:56	12 Dec 2017 10:10	11 Jan 2018 11:40	5 Mar 2018 09:46	11 Apr 2018 09:15	14 May 2018 10:15
0061	pH		7.77	7.6	7.9	7.89	7.9	7.5	7.9	7.23	7.34	8
0076	Temperature of Water	°C	8.6	13.3	14.3	14.9	11.7	4.6	4.7	3.9	8.9	10
0077	Conductivity at 25 C	μs/cm	194	239	211	231	215	206	211	181	163	217
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	0.061	< 0.03	0.136	< 0.03	0.035	< 0.03	0.351	0.117	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.94	1.63	1.92	2.49	2.06	4.97	4.02	3.07	2.52	2.02
0117	Nitrate as N	mg/l	3.94	1.62	1.92	2.46	2.06	4.96	4.01	3.06	2.51	2.01
0118	Nitrite as N	mg/l	0.0041	0.0104	0.0045	0.0289	< 0.004	0.0098	0.0121	0.0134	0.0136	0.0083
0119	Ammonia un-ionised as N	mg/l	< 0.00029	0.00057	< 0.0006	0.00277	< 0.00049	0.00014	< 0.0003	0.0007	0.00044	< 0.00055
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	38	72	59	56	60	34	40	32	37	61
0180	Orthophosphate, reactive as P	mg/l	0.038	0.184	0.14	0.203	0.067	0.042	0.043	0.066	0.046	0.086
9901	Oxygen, Dissolved, % Saturation	%	99.8	88	95	91.3	94.4	95	98	101.6	97	93.4
9924	Oxygen, Dissolved as O2	mg/l	11.6	9.19	9.7	9.2	10.2	12.2	12.6	13.3	11.2	10.5

Samples from 3 Feb 2016 to 20 Feb 2017

Notation	Determinand	Units	3 Feb 2016 13:50	25 Feb 2016 10:06	11 May 2016 10:53	3 Jun 2016 12:18	28 Jul 2016 11:08	13 Sep 2016 10:55	19 Oct 2016 11:14	10 Nov 2016 10:05	13 Jan 2017 14:23	20 Feb 2017 11:18
0061	pH		7.4	7.22	7.9	7.9	8	7.95	7.6	7.61	7.5	7.36
0076	Temperature of Water	°C	6.4	4.7	14.2	13.6	15	15.6	9.6	7.4	4.9	9.3
0077	Conductivity at 25 C	μs/cm	195	196	228	153	251	274	272	288	227	204
0111	Ammoniacal Nitrogen as N	mg/l	0.039	0.095	0.055	0.035	< 0.03	< 0.03	< 0.03	< 0.03	0.147	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.23	3.6	1.81	1.61	1.03	0.75	0.91	0.27	4.16	3.9
0117	Nitrate as N	mg/l	3.22	3.59	1.8	1.6	1.03	0.746	0.906	0.266	4.14	3.9
0118	Nitrite as N	mg/l	0.0139	0.0147	0.0132	0.015	0.0046	< 0.004	< 0.004	< 0.004	0.016	< 0.004
0119	Ammonia un-ionised as N	mg/l	0.00014	0.0002	0.00109	0.00066	< 0.00079	< 0.00074	< 0.00021	< 0.00019	0.00059	< 0.00012
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	41	38	63	69	83	86	86	91	39	38
0180	Orthophosphate, reactive as P	mg/l	0.048	0.057	0.214	0.09	0.119	0.134	0.083	0.047	0.102	0.035
9901	Oxygen, Dissolved, % Saturation	%	95	94.1	92	92	80	83.6	82	88.7	99	99.4
9924	Oxygen, Dissolved as O2	mg/l	11.7	12.1	9.42	9.54	8.05	8.3	9.33	10.6	12.7	11.4

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sampling point River Dalch U/S Lapford Stw

Determinands

Sampling results

Samples from 5 Apr 2017 to 14 May 2018

Samples from 3 Feb 2016 to 20 Feb 2017

sampling point
River Dalch U/S Lapford Stw