sampling point
Blackwater River At Buddlewall

Description	BLACKWATER RIVER AT BUDDLEWALL
Sampling point ID	SW-70230903
Type	Freshwater – Rivers
Status	open
Location	easting northing: 333056 102199 lat lon: 50.81545, -2.951608
Area	Devon And Cornwall
Sub-Area	East Devon And Cornwall
Summary	188 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.

42 determinands have been measured at this site

Action taken
Alky pH 4.5
Ammonia(N)
BOD ATU
C - Organic
C Organic DW
COD as O2
Calcium - Ca
Chloride Ion
Cond @ 20C
Cond @ 25C
Cu Filtered
E.coli C-MF
Hardness
Hdnss Ca
Hdnss Mg
IE Conf
IE Pres
Level@Smpl T
Magnesium-Mg
N Inorganic
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
OrthophsFilt
Oxygen Diss
Phosphate
Phosphorus-P
Potassium- K
SiO2 Rv
Sld NV@500C
Sld Sus@105C
Sulphate SO4
Temp Water
TurbidityNTU
Type of Flow
WethPresPrec
Zinc - as Zn
pH

Displaying the twenty most recent samples. You can see all 188 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 14 Jun 2022 to 21 Mar 2023

Notation	Determinand	Units	14 Jun 2022 11:19	2 Aug 2022 09:35	16 Aug 2022 11:30	13 Sep 2022 11:04	25 Oct 2022 11:05	15 Nov 2022 11:12	7 Dec 2022 11:15	19 Jan 2023 12:41	23 Feb 2023 09:35	21 Mar 2023 11:10
0061	pH		7.8	7.51	7.49	7.66	7.58	7.23	8.03	7.56	7.77	7.71
0076	Temperature of Water	°C	12.8	17.2	17.3	15.9	12.8	12.7	5.5	4.8	6.4	10
0077	Conductivity at 25 C	μs/cm	270	281	290	279	336	252	266	226	252	229
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.041	0.036	0.031	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3.4	3.3	3.3		5.1	4.2	3.5	3.4	3.3	2.1
0117	Nitrate as N	mg/l	3.39	3.29	3.29		5.09	4.19	3.49	3.39	3.29	2.09
0118	Nitrite as N	mg/l	0.013	0.011	0.0086	0.0046	0.011	0.011	0.0079	0.0051	0.0061	0.0052
0119	Ammonia un-ionised as N	mg/l	< 0.00043	< 0.00031	< 0.00029	< 0.00039	< 0.00026	0.00016	0.00047	0.00014	< 0.00025	< 0.00028
0135	Solids, Suspended at 105 C	mg/l	10	7	8.2	6.5	7.8	70	6	9.6	5.9	15
0143	Solids, non-volatile at 500 C	mg/l	< 20	< 20	< 20	< 20	< 20	58	< 20	< 20	< 20	< 20
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	76	77	80	75	55	47	61	48	58	62
0180	Orthophosphate, reactive as P	mg/l	0.087	0.11	0.14	0.1	0.042	0.074	0.032	0.046	0.034	0.041
2348	Escherichia coli : Confirmed : MF	no/100ml		490	1200	670	620	27000	970		450	420
3722	Enterococci: Intestinal: Presumptive: MF	cfu/0.1l		220	500	510	350	11000	530		36	260
3723	Enterococci: Intestinal: Confirmed: MF	cfu/0.1l		220	500	510	350	8800	530		36	260
9901	Oxygen, Dissolved, % Saturation	%	96	85.4	84.5	87.1	91.7	92.6	98.2	98.7	99	101.3
9924	Oxygen, Dissolved as O2	mg/l	10.1	8.2	8.09	8.59	9.68	9.8	12.4	12.7	12.2	11.4

Samples from 20 Aug 2021 to 3 May 2022

Notation	Determinand	Units	20 Aug 2021 09:41	24 Sep 2021 09:57	25 Oct 2021 10:40	8 Nov 2021 12:35	6 Dec 2021 12:31	10 Jan 2022 11:11	1 Feb 2022 12:49	21 Mar 2022 11:49	5 Apr 2022 10:29	3 May 2022 09:58
0061	pH		7.7	7.91	7.57	7.59	7.88	7.69	7.88	7.78	7.9	8
0076	Temperature of Water	°C	15.5	12.5	11.7	9.3	6.2	7.8	7.4	7.7	9.1	10.7
0077	Conductivity at 25 C	μs/cm	263	265	246	254	262	245	255	246	253	259
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.036	0.037	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	3	3.4	2.7	3	2.4	2.6	3.2	2.9	3.1	2.9
0117	Nitrate as N	mg/l	2.99	3.39	2.69	2.99	2.39	2.59	3.19	2.89	3.09	2.89
0118	Nitrite as N	mg/l	0.0087	0.0093	0.0064	0.012	0.0062	0.0088	0.0067	0.0054	0.012	0.0086
0119	Ammonia un-ionised as N	mg/l	< 0.00042	< 0.00054	< 0.00023	< 0.0002	< 0.00032	0.00028	0.00042	< 0.00028	< 0.00041	< 0.00058
0135	Solids, Suspended at 105 C	mg/l	7.9	5.6	7.9	4.2	10	8.2	12	6.8	6.4	7.5
0143	Solids, non-volatile at 500 C	mg/l	< 20	< 20	< 20	< 20	< 20	< 20	< 20	< 20		< 20
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	77	73	66	69	78	70	67	66	50	72
0180	Orthophosphate, reactive as P	mg/l	0.083	0.079	0.052	0.047	0.037	0.043	0.034	0.034	0.033	0.041
2348	Escherichia coli : Confirmed : MF	no/100ml			430	300	580	650	2200	240
3722	Enterococci: Intestinal: Presumptive: MF	cfu/0.1l			180	150	590	420	930	27
3723	Enterococci: Intestinal: Confirmed: MF	cfu/0.1l			180	150	590	380	930	27
9901	Oxygen, Dissolved, % Saturation	%	93	85	96.1	97.8	98.7	94.6	99.1	98.7	97	102
9924	Oxygen, Dissolved as O2	mg/l	9.25	9.04	10.4	11.2	12.2	11.2	11.9	11.8	11.2	11.3

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sampling point Blackwater River At Buddlewall

Determinands

Sampling results

Samples from 14 Jun 2022 to 21 Mar 2023

Samples from 20 Aug 2021 to 3 May 2022

sampling point
Blackwater River At Buddlewall