sampling point
Howden Res On River Derwent - Dwd Smpt

Description	HOWDEN RESERVOIR ON RIVER DERWENT - DWD
Sampling point ID	MD-49714900
Type	Freshwater – Lakes/Ponds/Reservoirs
Status	open
Location	easting northing: 416845 392561 lat lon: 53.429559, -1.747938
Area	Derbyshire Nottinghamshire And Leicestershire
Sub-Area	Derbyshire, Derwent And Erewash
Summary	230 samples taken between 2021 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.

86 determinands have been measured at this site

2,4,6-T
2,5-Xylenol
25Dichlrphnl
2Chlorophenl
ACENAPTHEN
Alk-Gran
Alky pH 4.5
Ammonia(N)
Anthracene
Arsenic - As
B-(a)-anthra
B-[a]-pyrene
B-[b]-fluora
B-[ghi]-pery
B-[k]-fluora
BOD ATU
Barium - Ba
Boron - as B
CHCl3 Extrac
CHLOROPHYLL
CN Free
COD as O2
Cadmium - Cd
Chloride Ion
Chromium -Cr
Chrysene
Colour Filt
Cond @ 20C
Cond @ 25C
Copper - Cu
Cyanide - CN
Dieldrin
DtrgtAncSyn
FLUORENE
Fe- Filt
Fluoranthene
Fluoride - F
HCH Gamma
Hydrocarbons
Ind123pyrene
Lead - as Pb
MR Screen
Manganse-Mn
Mercury - Hg
N Oxid Filt
N Oxidised
N-Kjeldahl
NATGRIDREF
NH3 un-ion
Naphthalene
Nitrate-N
Nitrite-N
Nitrogen - N
O Diss %sat
OILS UV
Odour - DF
Oil & Grs Vs
Orthophospht
OrthophsFilt
Oxygen Diss
PAH (WHO)
PAHs
PYRENE
Parathion
Pest EC-SW
Phenanthrene
Phenol
Phenol Odour
PhenolsSWAD
Phosphorus-P
Phytoplankto
Selenium -Se
Sld Sus@105C
Sulphate SO4
Temp Water
Vol Filtered
Weth-Visibty
Weth7Dy-Prec
Weth7Dy-Temp
Weth7Dy-Vsy
WethPresPrec
WethPresTemp
Zinc - as Zn
m-Cresol
o-Cresol
pH

Displaying the twenty most recent samples. You can see all 230 sample results (note that in some cases this may take a considerable time, and use significant data bandwidth).

Samples from 16 Mar 2020 to 1 Dec 2021

Notation	Determinand	Units	16 Mar 2020 13:04	19 Mar 2020 12:12	26 May 2021 10:23	18 Jun 2021 10:18	22 Jul 2021 09:35	13 Aug 2021 11:50	24 Sep 2021 13:23	22 Oct 2021 12:18	8 Nov 2021 10:26	1 Dec 2021 10:24
0061	pH		6.64	7.76	7.23	7.66	7.75	6.95	7.36	6.92	7.24	6.42
0072	Colour, Filtered	hazen	69	63
0076	Temperature of Water	°C	8	7	10.2	18.3	23.9	17	15.4	10.8	8.6	6.1
0077	Conductivity at 25 C	μs/cm	42	45
0085	BOD : 5 Day ATU	mg/l	< 1		1.2	< 1	< 1	< 3		1.2	< 3	< 3
0111	Ammoniacal Nitrogen as N	mg/l	< 0.03	< 0.03	< 0.03	< 0.03	< 0.03	0.039		0.075	0.045	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l	0.39	0.36	0.56	0.5	0.47	0.48		0.38	0.47	0.5
0117	Nitrate as N	mg/l	0.386	0.356	0.556	0.496	0.466	0.476		0.376	0.466	0.496
0118	Nitrite as N	mg/l	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004		< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l	< 2.0e-05	< 0.00025	< 0.0001	< 0.00047	< 0.00086	0.00011		0.00012	0.00013	< 1.0e-05
0135	Solids, Suspended at 105 C	mg/l	< 3	< 3	5.4	< 3	< 3	< 3		< 3	4.4	6.4
0162	Alkalinity to pH 4.5 as CaCO3	mg/l	< 5	< 5	< 5	9	11	14		12	8	7
0180	Orthophosphate, reactive as P	mg/l			< 0.01	< 0.01	< 0.01	< 0.01		< 0.01	< 0.01	< 0.01
7610	Alkalinity to pH 4.5 : Grans Plot	mg/l	1.1
7887	Chlorophyll : Acetone Extract	μg/l	< 0.5	< 0.5
9686	Nitrogen, Total as N	mg/l	0.72
9856	Orthophosphate, Filtered as P	mg/l	0.0014	0.0017
9901	Oxygen, Dissolved, % Saturation	%	105.8	101.2	98.2	101.4	105.3	93.7	88	91.5	95.4	99.7
9924	Oxygen, Dissolved as O2	mg/l	12.5	12.3	11	9.52	8.86	9.03	8.77	10.1	11.1	12.4
9943	Nitrogen, Total Oxidised, Filtered as N	mg/l	0.38	0.38

Samples from 17 Dec 2018 to 25 Feb 2020

Notation	Determinand	Units	17 Dec 2018 11:23	16 Jan 2019 11:39	21 Feb 2019 10:01	25 Mar 2019 12:14	14 Jul 2019 10:34	7 Aug 2019 10:17	11 Nov 2019 12:56	22 Jan 2020 10:18	29 Jan 2020 12:57	25 Feb 2020 10:08
0061	pH						7.6	7.31	5.98	7.21	6.93	7.17
0072	Colour, Filtered	hazen	80	74	71	62	56	69	141	99	99	74
0076	Temperature of Water	°C					18.5	18	7.7	5.2	5	4.9
0077	Conductivity at 25 C	μs/cm	57	55	59	53	59	58	40	43	43	70
0085	BOD : 5 Day ATU	mg/l					< 1	< 1	< 1	1.4	1.1	< 4
0111	Ammoniacal Nitrogen as N	mg/l					0.053	0.046	< 0.03	< 0.03	< 0.03	< 0.03
0116	Nitrogen, Total Oxidised as N	mg/l					0.46	0.42	0.34	0.39	0.41	0.38
0117	Nitrate as N	mg/l					0.456	0.416	0.336	0.386	0.406	0.376
0118	Nitrite as N	mg/l					< 0.004	< 0.004	< 0.004	< 0.004	< 0.004	< 0.004
0119	Ammonia un-ionised as N	mg/l					0.00073	0.00031	< 1.0e-05	< 6.0e-05	< 3.0e-05	< 6.0e-05
0135	Solids, Suspended at 105 C	mg/l					< 3	< 3	3.87	< 3	< 3	4.6
0162	Alkalinity to pH 4.5 as CaCO3	mg/l					9	9	5	< 5	5	< 5
0348	Phosphorus, Total as P	mg/l	0.0144	0.0125	0.0087	0.0089	0.015	0.015	0.0167	0.0078	0.011	0.011
4994	GCMS Screen : Target Based multi-residue screening : Semi Quantitative	text		1			1			1
7610	Alkalinity to pH 4.5 : Grans Plot	mg/l	12.6	1.75	2.18	1.61	6.02	6.6	1.88	3.3	2.4	1
7887	Chlorophyll : Acetone Extract	μg/l	0.5	0.68	< 0.5	0.6	3.2	3	1.1	< 0.5	< 0.5	0.57
9686	Nitrogen, Total as N	mg/l	1.14	1.05	1.09	0.95	1.03	0.81	0.9	0.75	0.8	0.7
9856	Orthophosphate, Filtered as P	mg/l	0.0047	0.0023	0.0021	0.002	0.0015	0.0052	0.0055	0.0034	0.0029	0.0018
9901	Oxygen, Dissolved, % Saturation	%	94.4	102	100.2	103.2	96.1	89.3	94.7	94	97.1	95.2
9924	Oxygen, Dissolved as O2	mg/l					8.98	8.43	11.3	11.9	12.4	12.2
9943	Nitrogen, Total Oxidised, Filtered as N	mg/l	0.718	0.677	0.684	0.562	0.443	0.45	0.365	0.42	0.42	0.41

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sampling point Howden Res On River Derwent - Dwd Smpt

Determinands

Sampling results

Samples from 16 Mar 2020 to 1 Dec 2021

Samples from 17 Dec 2018 to 25 Feb 2020

sampling point
Howden Res On River Derwent - Dwd Smpt