Live Dashboard: North Santiam River and Detroit Lake
Reservoir & dam operations
Lake level, inflow & outflow
Turbidity trend
Recent federal and published field readings, shown together for timing and movement.
USGS reports FNU while field samples report NTU; the instruments and scales differ, so compare the timing and shape of the lines rather than their values one-for-one. The solid violet line is the City of Stayton's daily intake reading, measured by the city's water system operators.
Big Cliff pool
Big Cliff's own small re-regulating pool, not shown on the public chart above.
Source: USACE Big Cliff hourly report. Updates once per hour with a short reporting lag — treat as operational reference, not a substitute for SCADA.
USGS federal gauges
Field testing stations
Privately tested by Waterlab Corp
| # | Station | Turbidity | Temperature | pH | Conductivity | TDS | Sampled |
|---|---|---|---|---|---|---|---|
| #1 | Detroit Lake Boat Ramp (Mongold) Detroit Lake State Park · Reservoir | 7.19 NTU | 57.0 °F | 6.95 | 59 µS/cm | 31 ppm | Nov 1, 2026 |
| #2 | Detroit Dam Tailrace Below Detroit Dam | 0.509 NTU | 55.2 °F | 6.92 | 62 µS/cm | 31 ppm | Nov 1, 2026 |
| #3 | Big Cliff Tailrace Below Big Cliff Dam | 0.329 NTU | 56.1 °F | 6.95 | 71 µS/cm | 31 ppm | Nov 1, 2026 |
| #4 | Packsaddle Park Boat Launch Near Gates | — | — | — | — | — | No samples yet |
| #5 | Fishermen's Bend Boat Launch Near Mill City | 0.474 NTU | 56.8 °F | 6.74 | 73 µS/cm | 41 ppm | Nov 1, 2026 |
| #6 | North Santiam State Park Boat Ramp Between Mill City and Mehama | 0.352 NTU | 57.4 °F | 6.80 | 105 µS/cm | 48 ppm | Nov 1, 2026 |
Federal gauge readings and field testing results shown here are reported without commentary; gauges auto-refresh every 10 minutes. Federal readings are provisional data from the USGS National Water Information System and are subject to revision. Field testing results are published independently by the N. Santiam Silt Project.