Investigate the River Cam
For Cam water body GB105033042750, the Environment Agency reports Moderate ecological status in 2019 and 2022. Chemical status is Fail for 2019 and Does not require assessment for 2022. These are classification records, not live measurements or a finding about a particular discharge.
Source checked 8 September 2026 · This identifier covers a specific water body, not every reach of the River Cam.
Cambridgeshire & Peterborough
What is happening here? This is the environmental memory of the region — what was measured, reported, authorised and done around its rivers, wastewater assets and projects, assembled from the public record and shown with its provenance.
BioVeracity is part of RippleXn’s Veracity platform — reconstructing what was measured, reported, authorised and done around physical places over time.
What BioVeracity has connected
What do you want to check?
What changed recently
- ◐
Lime treatment resumes after summer pause
March Water Recycling Centre · 22 September 2025
See evidence - ●
Relocation cancelled after HIF funding withdrawn
Milton / Cambridge Water Recycling Centre · 1 August 2025
See evidence - ◐
Anglian Water pauses lime-related waste treatment
March Water Recycling Centre · 27 July 2025
See evidence - ○
Residents report persistent severe odour and 30-40 daily HGV movements
March Water Recycling Centre · 1 June 2025
See evidence - ●
Relocation development consent granted
Milton / Cambridge Water Recycling Centre · 1 April 2025
See evidence
The regional wastewater network
Each works is shown with its operator, regulator, receiving water and the projects or regulatory records attached to it. Where the effect on the receiving water is not yet established, that is recorded as an evidence gap rather than assumed.
March Water Recycling Centre
Persistent community odour reports, 30-40 daily heavy vehicle movements reported. Lime treatment pause in summer 2025 offers quasi-experimental comparison. No enforcement finding established.
- Operator
- Anglian Water
- Regulator
- Environment Agency
- Receiving water
- River Nene
Milton / Cambridge Water Recycling Centre
Relocation project cancelled after government funding withdrawn. Capacity expansion options under review. Planning-sensitive site within North East Cambridge regeneration area.
- Operator
- Anglian Water
- Regulator
- Environment Agency
- Receiving water
- River Cam
What is connected here
These connections are drawn only where the public record supports a direct relationship between one place and another. Follow the chain from a wastewater works to the water it discharges to, and on to the regulatory classification held for that water.
Where the evidence stands
The same discipline everywhere: what the public record currently establishes, what remains unresolved, and what would reduce that uncertainty. Nothing here is scored or inferred.
What the evidence establishes
- •March Water Recycling Centre discharges treated effluent to the River Nene.
- •Milton / Cambridge Water Recycling Centre discharges treated effluent to the River Cam.
What remains unresolved
- •No verified odour concentration or source-apportionment series supplied
- •Replacement capacity options undefined after relocation cancellation
What would help answer it
- •Dispersion modelling, source apportionment, wind-correlated odour measurements
- •Timestamped complaint records, operational logs, vehicle counts
- •Environment Agency incident records, operator event logs
- •Options appraisal scope, baseline evidence transferability assessment
What we haven’t found
These are the records BioVeracity has not located in the public sources reviewed. An absence of evidence is recorded honestly — it is not treated as proof of a problem or of its absence.
No verified odour concentration or source-apportionment series supplied
Why it matters: Cannot determine whether specific processes or external sources are responsible for reported odour.
What would resolve it: Dispersion modelling, source apportionment, wind-correlated odour measurements
No complete complaint chronology supplied
Why it matters: Cannot correlate reported odour with operational state, weather, or vehicle movements.
What would resolve it: Timestamped complaint records, operational logs, vehicle counts
Alleged spillages not supported by authoritative incident record
Why it matters: Community reports cannot be confirmed or refuted.
What would resolve it: Environment Agency incident records, operator event logs
Replacement capacity options undefined after relocation cancellation
Milton / Cambridge Water Recycling Centre
Why it matters: Prior environmental work may become stranded unless mapped to future options.
What would resolve it: Options appraisal scope, baseline evidence transferability assessment
Innovation potentially relevant here
The problem comes first. For each open question, this shows the capability that would be needed to answer it and the kind of regional innovation base that could be relevant. This is not an endorsement, a recommendation of any supplier, or a claim that anything has been deployed.
Relevant capability
Continuous odour / hydrogen-sulphide (H2S) measurement
Evidence gap: No verified odour concentration or source-apportionment series supplied
Why relevant: A verified odour-concentration series aligned to process state, vehicle movements and wind would let human experience be reconciled with the operational record.
Regional innovation base: The Cambridgeshire & Peterborough area hosts an environmental-sensing and air-quality research base that works on this class of measurement.
Proof of effect would be: Proof of effect would be a measured change in odour concentration before, during and after an intervention (for example the 2025 lime-treatment pause) — not the installation of a sensor.
Relevant capability
Independent environmental measurement
Evidence gap: No complete complaint chronology supplied
Why relevant: An independent, preserved measurement series would let this open question be answered rather than left to competing accounts.
Regional innovation base: The Cambridgeshire & Peterborough innovation ecosystem includes environmental measurement and data capabilities that could be relevant.
Proof of effect would be: Proof of effect would be a measured change in the environmental evidence after any intervention, with provenance retained.
Relevant capability
Real-time process and capacity telemetry
Evidence gap: Replacement capacity options undefined after relocation cancellation
Why relevant: Influent, treatment-performance and permit-headroom data would show whether a reported capacity constraint is current, seasonal or upgrade-dependent.
Regional innovation base: The regional data-analytics and process-engineering base works on asset telemetry of this kind.
Proof of effect would be: Proof of effect would be measured headroom and treatment performance tracked against consented development, over time.
Environmental evidence map
See the places BioVeracity has connected and how the available evidence relates across the region. Select a place to see its evidence and source-backed connections.
Only places with a source-backed location are plotted, and lines are drawn only where the public record establishes a direct relationship. Rivers are linear water bodies, so they are marked indicatively rather than pinned to a single point.
An immersive, time-based view of the same evidence — replay the record and watch the map and chronology move together. A product concept built on the real public record.
Follow Cambridgeshire & Peterborough
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