sampling point
Huntacott Water At Brookland Wood

Description	RSN0663 BROOKLAND WOOD - HUNTACOTT WATER (LITTLE DART RIVER (TAW))
Sampling point ID	SW-RSN0663
Type	Freshwater – Rivers
Status	open
Location	easting northing: 270437 114966 lat lon: 50.919563, -3.844617
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	11 samples taken during 2021

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.

16 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
C - Org Filt
Chloride Ion
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
SiO2 Rv
Temp Water
pH

Samples from 25 Feb 2021 to 9 Dec 2021

Notation	Determinand	Units	25 Feb 2021 09:17	23 Mar 2021 11:52	13 Apr 2021 12:01	19 Jul 2021 11:32	4 Aug 2021 13:20	18 Aug 2021 10:34	27 Sep 2021 15:40	18 Oct 2021 13:21	24 Nov 2021 10:15	9 Dec 2021 13:41
0061	pH		7.59	7.52	7.9	7.97	7.7	7.52	7.61	7.25	8.02	7.54
0076	Temperature of Water	°C	8	5.1	6.1	16.9	14.9	14.6	13.2	12.2	6.8	7.1
0077	Conductivity at 25 C	μs/cm	134	146	153	156	172	166	176	156	145	134
0111	Ammoniacal Nitrogen as N	mg/l	0.0098	0.0061	< 0.002	0.015	0.013	0.013	< 0.002	< 0.002	0.0063	0.0075
0116	Nitrogen, Total Oxidised as N	mg/l	1.4	1.2	0.72	1.2	0.78	0.89	0.85	1.2	0.77	1.8
0117	Nitrate as N	mg/l	1.39	1.2	0.717	1.2	0.777	0.887	0.838	1.2	0.769	1.8
0118	Nitrite as N	mg/l	0.0095	0.0048	0.0033	0.0046	0.003	0.0035	0.012	0.0026	0.0011	0.0026
0119	Ammonia un-ionised as N	mg/l	6.0e-05	3.0e-05	< 2.0e-05	0.00042	0.00017	0.00011	< 2.0e-05	< 1.0e-05	9.0e-05	4.0e-05
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	24	26	34	36	43	43	46	34	33	22
0172	Chloride	mg/l	16	16	18	16	18	17	19	18	16	17
0180	Orthophosphate, reactive as P	mg/l	0.011	0.016	0.014	0.03	0.037	0.03	0.031	0.0068	0.016	0.013
0182	Silica, reactive as SiO2	mg/l	5.6	6.7	7.4	8.7	9	8.9	8.7	9.5	8.4	6.2
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	4.4	3.4	3.9	5.2	5.7	4.8	11	4.8	5.3	4.1
0348	Phosphorus, Total as P	mg/l	0.06	0.027	0.029	0.06	0.06	0.052	0.19	0.042	0.029	0.026
9901	Oxygen, Dissolved, % Saturation	%	96.8	103.6	99	91.6	98	92.5	91	97.8	89.2	97
9924	Oxygen, Dissolved as O2	mg/l	11.4	13.2	12.3	8.85	9.88	9.38	9.52	10.5	10.9	11.7

Sample on 29 Jan 2021

Notation	Determinand	Units	29 Jan 2021 09:42
0061	pH		7.68
0076	Temperature of Water	°C	8.2
0077	Conductivity at 25 C	μs/cm	108
0111	Ammoniacal Nitrogen as N	mg/l	0.064
0116	Nitrogen, Total Oxidised as N	mg/l	0.72
0117	Nitrate as N	mg/l	0.715
0118	Nitrite as N	mg/l	0.0048
0119	Ammonia un-ionised as N	mg/l	0.00049
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	25
0172	Chloride	mg/l	13
0180	Orthophosphate, reactive as P	mg/l	0.021
0182	Silica, reactive as SiO2	mg/l	3.2
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l	7.2
0348	Phosphorus, Total as P	mg/l	0.17
9901	Oxygen, Dissolved, % Saturation	%	100.7
9924	Oxygen, Dissolved as O2	mg/l	11.8