Catchment Explorer

Scarborough wastewater catchment.

The anchor scenario: an EDM-monitored coastal catchment where bathing-water consents, ageing interceptors and CIM evidence collide. Pick any asset to see what we know, what it's telling us, and where it sits in the 20-year forecast.

Population equivalent
76,500
Sewer network
612 km
EDM-monitored CSOs
14
CIM stations
6
20-yr asset spend
£83.0 M

Discharging to Scarborough Bay (Bathing & shellfish waters). 1 breach · 5 off-track · 4 watch on the asset register today.

Navigable catchment

Real Scarborough basemap with WwTW, CSOs, pumping stations, trunk sewers and CIM stations laid over the top. Filter by asset type, click any feature to open its dossier.

Scarborough WwTW© OpenStreetMap contributors
On trackWatchOff trackBreach
Catchment assets

14 of 14 assets shown

Asset dossier · live signals

What we know about the selected asset and what its sensors have said in the last week. This is the per-asset story that drives the risk surface.

Combined sewer overflow

Scalby Mills CSO

Off track

Storm overflow at the Scalby Mills inlet works on Scalby Beck, immediately upstream of the long sea outfall. Repeated EDM activations during wet weather; screening and storage uplift scoped under AMP8.

Criticality
4 / 5
Condition grade
C
Time-to-non-compliance
64 days
Installed
1986
Permit
EPR/UB3409CK — 10 spills/yr threshold
20-yr forecast spend
£6.9 M
Events · 30d
7
Condition gradeA best · E worst
A
B
C
D
E
Sensor feed · 7 days

What the catchment is telling us

8 signals

8 sensor events shown out of ~8,000/year in this catchment alone — the triage that surfaces "the 6 that matter" lands in Operations.