Niveau+37,51 m NAP(estimation)
Grensmaas: PT-schatting uit pegels (p05, 28 dagen tot 2026-10), geen officieel vlak
Zone: Grensmaas (Maas from the Belgian border to the Linne pool), free flowing
Source: PegelTiefgang (estimate); PegelTiefgang estimate from Rijkswaterstaat gauge series (waterinfo.rws.nl, 10-minute readings, 28 days to 2026-10-18); not an official line: the RWS 'Betrekkingslijnen Maas 2025-2026' are flood-wave relations and the 1995 Maas discharge treaty gives allocation phases, not a profile (research answer 3 section J). Method and gauge table in plane.estimate_method and grensmaas_estimate_2026_10.json; 2026-10-18