Water Resources Map

The Water Resources Map is a specific instrument for the protection of water intended for human consumption, supplied to third parties by means of aqueducts of public interest, in the implementation of Article 94, paragraph 1, of Legislative Decree 152/2006; it also includes different supplies that are in any case worthy of protection, pursuant to paragraph 2 below, including mineral and thermal waters, as provided for by the provincial sector regulations.
The Water Resources Map was prepared following the entry into force of the Provincial Urban Plan (PUP), approved by Provincial Law no. 5 of 27 May 2008, and reported therein by way of reconnaissance in application of Article 21 of its implementation rules.
The Water Resources Map, approved by G.P. Resolution no. 2248 of 5 September 2008, includes springs, wells and surface waters used for drinking purposes with any flow rate; it also includes mineral water springs for bottling and thermal uses, as well as springs considered strategic for their peculiar characteristics of quality, quantity and vulnerability, even if not exploited for human use, which could constitute future reserves.
The Water Resources Map covers the entire Trentino territory at a scale of 1:10,000 and identifies the following protection areas: a) absolute protection areas; b) hydrogeological protection areas; c) hydrogeological protection areas. The absolute protection areas take on different colours according to the type of resource to be protected (see the relevant legend).

In the map, all other springs in the Register of Springs managed by the Geological Service are also indicated with a blue asterisk.

The Water Resources Map is periodically updated by the Provincial Council, according to the methods reported in Resolution G.P. no. 1197 of 7 July 2023:

MAP UPDATES CARRIED OUT:

FIRST UPDATE: with G.P. Resolution no. 2779 of 14/12/2012 the first update of the Water Resources Map was approved.
SECOND UPDATE: with Deliberation of G.P. no. 1470 of 31/08/2015 the second update of the Water Resources Map was approved. With this update, the Water Resources Map uses the 2013 Provincial Technical Map approved with Deliberation of G.P. no. 1712 of 06/10/2014 as a reference base.
THIRD UPDATE: with Deliberation of G.P. no. 1941 of 12/10/2018 the third update of the Water Resources Map was approved. With this update, the Water Resources Map uses the Provincial Technical Map 2017 approved by Resolution of G.P. no. 2126 of 07/12/2017 as its reference basis.
FOURTH UPDATE: By Resolution of G.P. No. 1783 of 21/11/2025, the current update of the Water Resources Map was approved.
This update of the Water Resources Map uses as a reference basis the Provincial Technical Map 2020 approved by Resolution of G.P. no. 1185 of 16/07/2021.

In accordance with the periodic update provided for by art. 21, paragraph 4, of the Implementation Rules of the P.U.P., the current Fourth Update was prepared following the following verifications

1. existence of both drinking and mining concession titles for the purpose of representing the safeguard areas of the selected sources;
2. adaptation of the shape of some safeguard areas on the basis of more careful hydrogeological assessments;
3. first assessment of the correspondence of the map representation of large Absolute Protection Zones with respect to the areas actually fenced in around the extraction structures;
4. repositioning with greater precision of 615 catchment points with adjustment of the relative protection areas.

REGULATORY REFERENCES:

With Deliberation of G.P. no. 1197 of 7 July 2023, the new implementation rules of the Water Resources Charter were approved.

In addition, in compliance with the provisions of the Implementation Rules of the Water Resources Charter of the PUP and of Article 94 of Legislative Decree No. 152 of 3 April 2006, Resolution No. 765 of 5 May 2023 regulates agronomic practices and the contents of plans for the use of chemical fertilisers, fertilisers and phyto-pharmaceuticals in the hydrogeological buffer zones of water catchment points for human consumption.

The Deliberation of G.P. no. 1545 of 24/08/2018, specifically in art. 6, paragraph 5, provides for the prohibition of the accumulation of manure in the Absolute Protection and Respect Zones.

CONSULTATION:

The Water Resources Map can be consulted through the following webgis (in which georeferenced images and pdfs for printing are available for download).

ArcGis Online WEBGIS GUIDE of the Water Resources Map

A WMS service for GIS is available at the following address:

https://geoservices.provincia.tn.it/agol/services/geologico/002_CartaRisorseIdriche/MapServer/WMSServer