Shire Dyke downstream A1 Road Bridge
EA name: SHIRE DYKE DOWNSTREAM A1 ROAD BRIDGE
Environment Agency sampling point AN-SHIREDYK · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 6 Mar 2025, 11:2919 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 6 since 2 May 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 482627, 348509As published, to the nearest 1 m. Open in a map
- River, by its own name
- Shire Dyke
- River, by the map
- Shire DykePlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- North Hykeham On the River Witham · 26 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.1 mg/l
Sampled 6 Mar 2025, 19 months ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 11:29 | 0.1 | 0.1 mg/l |
| 24 Jan 2025, 10:38 | 0.071 | 0.071 mg/l |
| 6 Nov 2024, 10:29 | 0.17 | 0.17 mg/l |
| 2 Sep 2024, 10:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2024, 12:38 | <0.03 | below 0.03 mg/l (not detected above this) |
Everything measured here
18 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Ammoniacal Nitrogen as N 0111 | River water | 5 | Jul 2024 – Mar 2025 | 0.1 mg/l 6 Mar 2025 |
| Arsenic, Dissolved 6045 | River water | 6 | May 2024 – Mar 2025 | below 1 µg/l 6 Mar 2025 |
| BOD : 5 Day ATU 0085 | River water | 5 | Jul 2024 – Mar 2025 | 1.2 mg/l 6 Mar 2025 |
| Cadmium, Dissolved 0106 | River water | 6 | May 2024 – Mar 2025 | below 0.1 µg/l 6 Mar 2025 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 6 | May 2024 – Mar 2025 | 12 mg/l 6 Mar 2025 |
| Chloride 0172 | River water | 5 | Jul 2024 – Mar 2025 | 110 mg/l 6 Mar 2025 |
| Chromium, Dissolved 3409 | River water | 6 | May 2024 – Mar 2025 | below 0.5 µg/l 6 Mar 2025 |
| Copper, Dissolved 6450 | River water | 6 | May 2024 – Mar 2025 | below 1 µg/l 6 Mar 2025 |
| Cyanide : Free as CN 0174 | River water | 6 | May 2024 – Mar 2025 | below 0.005 mg/l 6 Mar 2025 |
| Cyanide as CN 0175 | River water | 6 | May 2024 – Mar 2025 | below 0.005 mg/l 6 Mar 2025 |
| GCMS Screen : Semi-Volatile Screen: Semi Quantitative 3106 | River water | 6 | May 2024 – Mar 2025 | 1 unitless value 6 Mar 2025 |
| Iron, Dissolved 6460 | River water | 6 | May 2024 – Mar 2025 | below 30 µg/l 6 Mar 2025 |
| Lead, Dissolved 0052 | River water | 6 | May 2024 – Mar 2025 | below 2 µg/l 6 Mar 2025 |
| Mercury, Dissolved 0103 | River water | 6 | May 2024 – Mar 2025 | below 0.01 µg/l 6 Mar 2025 |
| Nickel, Dissolved 3410 | River water | 6 | May 2024 – Mar 2025 | 1.6 µg/l 6 Mar 2025 |
| pH : In Situ 3169 | River water | 6 | May 2024 – Mar 2025 | 7.64 6 Mar 2025 |
| Solids, Suspended at 105 C 0135 | River water | 6 | May 2024 – Mar 2025 | 13 mg/l 6 Mar 2025 |
| Zinc, Dissolved 3408 | River water | 6 | May 2024 – Mar 2025 | below 5 µg/l 6 Mar 2025 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.