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Mendham Boro cited for effluent violation
September 21, 2026
Mendham Boro is in Significant Non-Compliance for an effluent violation, having discharged more of a pollutant than its permit allows based on a monthly average. This active violation indicates the facility is currently exceeding one or more discharge limits under its Clean Water Act permit.
September rainfall well above normal at Boonton
September 21, 2026
Month-to-date precipitation through September 21 was 5.7 inches, 3 inches above the normal of 2.7 inches at Boonton station 13 km away. The surplus is likely suppressing short-term fire risk, though it reflects an unusually wet September relative to the long-term average.
Fowler's toad recorded near Boonton
September 21, 2026
, a state-threatened amphibian, was recorded September 7 and 6 in the area, including at a site near Boonton. The species presence indicates adequate palustrine wetland conditions to support populations, with forested wetlands covering 32% of mapped area and maintained seasonal saturation.
More about Japanese knotweed
Japanese knotweed keeps spreading in the valley
September 21, 2026
was recorded 19 times in the past 60 days across multiple towns in the Connecticut Valley, with the most recent observation on 2026-09-19 in Springfield. This introduced species continues to spread through riverside areas and disturbed sites where it outcompetes native vegetation.
Giant knotweed flowering alongside hybrid invader
July 13, 2026
Giant knotweed (Fallopia sachalinensis) flowered this week along the creek — its tall stems and creamy panicles now joining two other invasive species already established at the margins. and Bohemian knotweed are present here in heavy stands, and the Bohemian is particularly significant — it is a hybrid of the other two, evidence that cross-pollination is actively occurring in the watershed. This matters because hybrid vigor often exceeds either parent species. The offspring spread faster, colonize wider ranges, and resist management more stubbornly. Summer floods will carry seeds and rhizome fragments downstream to uncolonized banks, establishing new beachheads. What we see here is not stalled invasion, but accelerating divergence.
Legend
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