Scotland · Scottish Environment Protection Agency
Millport Bay
Avoid swimming
Active sewage discharge from MILLPORT SPS NO1 CSO 2002 NS171546 (1 active event within 5km, Scottish Water).
High confidence — an active discharge is being reported right now — the event itself is fresh evidence.
Status computed 19 hours ago; statuses refresh every 15 minutes.
What we know
- Regulator classification
- Excellent
- Pollution risk forecast
- Not published for this spot
- Active discharges
- 1 within 5km right now
- Recent discharges (last 48 hours)
- 10 within 5km
- Upstream river network
- Downstream of a Scottish Water discharge in the last 48 hours
- Surrounding overflow coverage
- Within an ingested water company network
- Monitoring season
- Outside regulator monitoring season
Last sampled 7 September 2026 · 2 months ago. Source: Scottish Environment Protection Agency.
SEPA does not publish risk forecasts.
MILLPORT SPS NO1 CSO 2002 NS171546 (Scottish Water) — started 5 Nov 2026, 02:00 UTC.
Most recent at MILLPORT SPS NO1 CSO 2002 NS171546 (Scottish Water) — ended 5 Nov 2026, 05:45 UTC.
Sewage-map data as of 19 hours ago — discharges traced through the river network.
SEPA monitors 15 May – 15 September only.
What this verdict means
Avoid swimming is driven by the strongest negative signals this map tracks: an active sewage discharge affecting this water, or a regulator classification of Poor or a closure. After a discharge ends, waiting at least 48 hours before swimming is the standard advice.
Every verdict here is computed from regulator classifications, sample dates, pollution-risk forecasts, and water-company discharge reports — it is not a water test. Absence of a negative signal is not positive confirmation of safety, and conditions on the day (rainfall, currents, cold) matter as much as water quality. Read how statuses are decided.