Observed arrival · 2026-09-01
A Rain Gauge for New Jersey’s Overflow Risk
NJ CSO Outlook compares recent precipitation with permittee-specific thresholds to show where combined sewer overflow events are likely.
Field notes
The outlook treats rainfall as an operational signal: it compares one-, four-, and twelve-hour totals against thresholds set for individual New Jersey permittees, then ranks the results by severity. The page covers 15 monitored systems and includes permittee identifiers alongside municipalities such as Newark, Paterson, Perth Amboy, and Fort Lee. Its warning is appropriately narrow: “likely” indicates a modeled condition, not proof that sewage has discharged into a waterway.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue