sampling point
Claw D/S Clawmoor Plantation

Description	RIVER CLAW DOWNSTREAM OF CLAWMOOR PLANTATION
Sampling point ID	SW-81201180
Type	Freshwater – Rivers
Status	open
Location	easting northing: 238959 102400 lat lon: 50.798723, -4.286567
Area	Devon And Cornwall
Sub-Area	Central Devon And Cornwall
Summary	11 samples taken between 2020 and 2019

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.

13 determinands have been measured at this site

Alky pH 4.5
Ammonia(N)
Cond @ 25C
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Sld Sus@105C
Temp Water
pH

Samples from 16 Jul 2019 to 12 Mar 2020

Notation	Determinand	Units	16 Jul 2019 15:14	6 Aug 2019 12:02	9 Sep 2019 11:57	20 Sep 2019 10:44	15 Oct 2019 12:42	15 Nov 2019 08:29	11 Dec 2019 11:34	6 Jan 2020 12:22	18 Feb 2020 13:26	12 Mar 2020 12:05
0061	pH		7.49	7.65		7.59	7.36	7.26	7.3	7.3	7.8	7.5
0076	Temperature of Water	°C	14.8	15.2		12	11.9	5.6	6.7	7.5	7	8
0077	Conductivity at 25 C	μs/cm	267	269		241	170	152	165	184	167	163
0111	Ammoniacal Nitrogen as N	mg/l	0.031	0.033	< 0.03	< 0.03	0.03	0.047	0.16	0.032	0.047	0.042
0116	Nitrogen, Total Oxidised as N	mg/l	0.41	0.48	0.38	0.6	1.1	0.67	0.58	1.2	0.65	0.57
0117	Nitrate as N	mg/l	0.406	0.476	0.376	0.596	1.09	0.665	0.572	1.19	0.641	0.561
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	0.013	0.0052	0.0083	0.0056	0.0088	0.0092
0119	Ammonia un-ionised as N	mg/l	0.00025	0.0004		< 0.00025	0.00015	0.00011	0.00046	0.0001	0.00044	0.00021
0135	Solids, Suspended at 105 C	mg/l	5.9	6.7	7.9	3.3	7.7	8.77	22	10	9.3	10
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	85	84	62	68	32	25	33	37	25	31
0180	Orthophosphate, reactive as P	mg/l	0.026	0.04	0.035	0.04	0.041	0.067	0.049	0.032	0.024	0.023
9901	Oxygen, Dissolved, % Saturation	%	62.3	71.2		73.4	92.7	91.5	92	92	100	93
9924	Oxygen, Dissolved as O2	mg/l	6.29	7.13		7.89	9.99	11.5	11.2	11	12.1	11

Sample on 4 Jun 2019

Notation	Determinand	Units	4 Jun 2019 12:45
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.53
0117	Nitrate as N	mg/l	0.526
0118	Nitrite as N	mg/l	< 0.004
0135	Solids, Suspended at 105 C	mg/l	4.85
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	74
0180	Orthophosphate, reactive as P	mg/l	0.02