Big Creek

Hwy 54, NW of Caledonia

Source monitoring station 16018412802

Historical analysis using public PWQMN data (2019–2024). Designed to turn watershed and source-water signals into anomaly interpretation, site-level risk context, and decision support alongside existing monitoring portals and plant SCADA.

Real-time monitoring requires Phase 2 SCADA or community sensor access.

Upstream risk score

Safe

0–30: Stable historical pattern

Last updated Nov 12, 2024

Historical monitoring record

Apr 8, 2019 to Nov 12, 2024

Trend anomalies 32 · 30d rolling 1

Top anomaly parameter CONDUCTIVITY

Anomaly parameter mix

Which source-water parameters drive this station's flagged readings

Total flagged readings

Use this breakdown to see whether one parameter is dominating the site's anomaly history or whether the signal is spread across multiple source-water indicators.

CONDUCTIVITY

SOLIDS; TOTAL

SOLIDS; DISSOLVED

CONDUCTIVITY, AMBIENT

Other

Why this matters

Mostly stable historical profile with fewer flagged anomalies than higher-risk stations.

Recommended action: Continue standard monitoring; this station has a comparatively stable historical profile.

How this complements SCADA

For operators: Use this view to spot unusual source-water patterns that deserve review alongside plant alarms, operator logs, and lab checks.

For council / leadership: Use this view to understand relative watershed risk, recurring problem areas, and where follow-up or investment may be needed.

Source-water anomaly timeline

Anomaly score
Flow-spike corroboration
Data-quality corroboration

Higher values mean the reading was more unusual relative to this station's historical pattern and may help explain source-water shifts before plant dashboards show the same context.

Corroborated event context

Public event records provided context for 0 of the anomalies cross-referenced at this site. These are temporal correlations, not proof that an external event caused the reading.

No High or Possible public-record correlations were found for this site in the current annex.

High correlation 0Possible correlation 0Checked: no public match 0Not yet cross-referenced 32

Scope: the current annex covers the top 25 anomalies across the monitoring network, using public spill and hydrometric flow records.

Source-water anomaly history

Anomaly scores reflect readings that deviate from this station's historical pattern. They help turn raw watershed signals into explainable site-level context that chart portals and plant-only dashboards may not surface on their own. Driver hints explain the source-water pattern behind each anomaly in plain language rather than model terms.

Timestamp	Reading	Score	Event intelligence
10/17/2024, 10:41:00 AM	CONDUCTIVITY 708 µS/cm Driverssustained level shifttwo-week level shiftshort-term level shift	0.608	Not yet cross-referenced
8/7/2024, 10:25:00 AM