sampling point
Roman River Heckford Bridge

Description	ROMAN RIVER HECKFORD BRIDGE
Sampling point ID	AN-RR0140
Type	Freshwater – Rivers
Status	open
Location	easting northing: 594670 221800 lat lon: 51.860809, 0.825696
Area	Essex Norfolk And Suffolk
Sub-Area	Essex Team Sub Area
Summary	97 samples taken between 2024 and 2011

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

Alky pH 4.5
Ammonia(N)
BOD ATU
C - Org Filt
CHLOROPHYLL
Ca Filtered
Calcium - Ca
Cond @ 25C
Fe- Filt
Hardness
Magnesium-Mg
Mg Filtered
Mn BLM Bio
Mn- Filtered
N Oxidised
NH3 un-ion
Nitrate-N
Nitrite-N
O Diss %sat
Orthophospht
Oxygen Diss
Phosphorus-P
Sld Sus@105C
Temp Water
TurbidityNTU
pH

Displaying the twenty most recent samples. You can see all 97 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 1 Sep 2023 to 1 Jul 2024

Notation	Determinand	Units	1 Sep 2023 12:43	5 Oct 2023 13:49	14 Nov 2023 11:32	5 Dec 2023 10:26	3 Jan 2024 11:52	1 Feb 2024 14:26	6 Mar 2024 10:56	4 Apr 2024 15:27	6 Jun 2024 15:35	1 Jul 2024 13:18
0061	pH		7.79	7.66	7.89	7.99	7.89	7.97	8.02	7.82	7.85	7.03
0076	Temperature of Water	°C	15.8	14.7	10.6	6.8	8.8	8	9.1		13.9	14.7
0077	Conductivity at 25 C	μs/cm	984	966	755	810	576	919	823		927	724
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	0.032	0.043	0.076		0.053		< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	11	12	10	9.9	7.5	10	8.8		12	20
0117	Nitrate as N	mg/l	11	12	9.97	9.86	7.47	9.92	8.76		11.9	20
0118	Nitrite as N	mg/l	0.017	0.033	0.028	0.04	0.026	0.081	0.044		0.061	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 0.00052	< 0.00036	0.00048	0.00061	0.00099		0.0009		< 0.00052	< 8.0e-05
0135	Solids, Suspended at 105 C	mg/l	8	3.5	12	9.2	93	8.1	11		5.3	3.7
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	240	230	230	240	190	250	250		240	130
0180	Orthophosphate, reactive as P	mg/l	0.21	0.21	0.12	0.13	0.14	0.15	0.11		0.18	0.28
0235	Magnesium, Dissolved	mg/l		12			4.4			9		13
0239	Calcium, Dissolved	mg/l		130			90			120		89
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l		3.1			7.6			4.5		1.6
6396	Turbidity	ntu	1.6	1.1	12	8.5	88	4.3	6.3		2.7	< 1
6460	Iron, Dissolved	μg/l		< 30			44			< 30		< 30
7887	Chlorophyll : Acetone Extract	μg/l	1	< 0.5	0.69	0.58	2.6	0.9	2.5		1.7	< 0.5
9901	Oxygen, Dissolved, % Saturation	%	91.8	88.5	91.4	92.6	87.5	96.5	99.7		91.9	96.9
9924	Oxygen, Dissolved as O2	mg/l	9.08	8.96	10.2	11.3	10.1	11.4	11.5		9.47	9.81

Samples from 1 Nov 2022 to 10 Aug 2023

Notation	Determinand	Units	1 Nov 2022 08:46	1 Dec 2022 11:15	17 Jan 2023 11:26	1 Feb 2023 13:14	2 Mar 2023 16:08	27 Apr 2023 15:31	2 May 2023 11:33	20 Jun 2023 11:12	6 Jul 2023 10:07	10 Aug 2023 14:08
0061	pH		7.71	8	8.09	7.92	7.92	8.09	8.12	7.81	8.49	7.9
0076	Temperature of Water	°C	12.7	8.3	4.2	7	8.4	11.6	12.3	16.8	14.3	16.3
0077	Conductivity at 25 C	μs/cm	1032	986	767	979	974	946	912	974	829	947
0085	BOD : 5 Day ATU	mg/l	1.1	1.4	1	1.3	1
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.087	< 0.03	0.038	0.032
0116	Nitrogen, Total Oxidised as N	mg/l	14	12	13	12	15	10	8.9	11	9.6	9.8
0117	Nitrate as N	mg/l	14	12	13	12	15	9.98	8.88	11	9.57	9.78
0118	Nitrite as N	mg/l	0.02	0.018	0.023	0.029	0.024	0.025	0.023	0.047	0.035	0.02
0119	Ammonia un-ionised as N	mg/l	< 0.00035	< 0.00048	< 0.00036	< 0.00037	< 0.00041	< 0.00062	0.00188	< 0.00059	0.00095	0.00074
0135	Solids, Suspended at 105 C	mg/l	6.6	4.4	20	4.4	6.9	7.2	5.5	5.5	8.2	6
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	230	240	200	240	210	250	260	230	190	250
0180	Orthophosphate, reactive as P	mg/l	0.23	0.18	0.13	0.15	0.2	0.13	0.15	0.27	0.29	0.25
0235	Magnesium, Dissolved	mg/l						9.5			8.9
0239	Calcium, Dissolved	mg/l						140			100
0301	Carbon, Organic, Dissolved as C :- {DOC}	mg/l						3.8			4.5
6396	Turbidity	ntu					1.6	1.6	2.2	2.6	3.8	3.4
6460	Iron, Dissolved	μg/l						< 30			31
7887	Chlorophyll : Acetone Extract	μg/l	0.56	< 0.5	1.8	0.65		3.7	2.9	1.7	1.7	0.9
9901	Oxygen, Dissolved, % Saturation	%	75	85.4	98.4	98.2	100.4	97.7	101.6	82.9	89.2	92.2
9924	Oxygen, Dissolved as O2	mg/l	7.94	10	12.8	11.9	11.8	10.6	10.9	8.02	9.11	9.02

Tell us whether you accept cookies

sampling point Roman River Heckford Bridge

Determinands

Sampling results

Samples from 1 Sep 2023 to 1 Jul 2024

Samples from 1 Nov 2022 to 10 Aug 2023

sampling point
Roman River Heckford Bridge