WOTUS Water Protection Rule Simulator & Jurisdictional Diagnostic

Silver Creek Catchment Basin

Jurisdiction Standard

Continuous Surface Connection (Narrowed Proposal)

Watershed Acres Protected

148,200

Ephemeral Streams Protected

Isolated Wetlands Protected

WATERSHED TELEMETRY

Proposed Narrowed Rule: Eliminates ephemeral tributaries and wetlands lacking continuous surface flow connection.

Features Evaluated: 12

Non-Continuous Wetlands: 0%

CONTAMINANT TRACER

Federally Protected (CWA Jurisdictional)

Deregulated / Non-Jurisdictional

Continuous Surface Wetland

Berm / Subsurface / Isolated Wetland

CWA Section 402/404 Jurisdictional Diagnostic

Waterbody / Feature Classification

Flow Regime / Hydrology

Hydrological Surface Connection

Under the active standard, ephemeral streams lack relatively permanent flow and are excluded from Clean Water Act Waters of the United States.

Governing Precedent: Sackett v. EPA, 598 U.S. 651 (2023); 33 U.S.C. § 1362(7).

Downstream Municipal Drinking Water Vulnerability

HIGH DOWNSTREAM RISK

Real-time telemetry showing fate and transport of unpermitted discharges into headwaters:

[00:00:00] Catchment baseline monitored Drinking Intake: SECURE

Feature Name	Classification	Status	Flow Length / Area