Sanitation Firm Chooses ProMark GNSS Receivers

Saneamento Basico do Estado de São Paulo (SABESP), a Brazilian water and sewage collection utility owned by São Paulo state and Latin America's largest water company by market capitalization, has selected Spectra Precision ProMark 120 and 220 GNSS receivers to assist in gathering the geographic location of all SABESP network assets and the location of all customers

SABESP provides water to more than 28.7 million customers, or 67% of thepopulation of São Paulo state.Water loss due to leakage in theSABESP network is a significant problem. Thebiggest reason behind water lossis leaks in the network; additional factors include sub-metering, caused by lowwater pressure; unauthorized consumption and fraud.Improvingwatermanagement, recovering lost revenue andimproving the quality of the customer experience is a priority for SABESP.To help improve revenue generation and reduce water lossSABESPdeveloped two projects: LigGeo, to geo-referencethe water meter location of approximately 4.8 million SABESP customers; andCadGeo, to geo-reference and register the location of theSABESP water andsewage network infrastructure.

According to MarcosAlmir, sanitation systems analyst for the metropolitan department ofdevelopment and management of SABESP, the twin projects of LigGeo and CadGeowere motivated bySABESP's desire to improve productivity and competitiveness."We created an innovative GIS effort to geo-reference and register SABESPdistribution networks and buried assets.Testsshowed the technical feasibility of using ProMark GNSS receiversand collectors with NTRIP technology to efficiently and effectively register allSABESP equipment in real time with geo-referenced attributes connected to thetechnical and commercial enterprise systems to optimize processes and reducecosts."

To implement the LigGeoand CadGeo projects, SABESP purchased 50 ProMark 120 and 220 GNSS receivers fromHezolinem Equipamentos Topograficos, Spectra Precision's Brazil dealer.Both SABESP technicians and outsourcedservice providers will use the receivers.

ProMark 120/220GNSS receivers were chosen for their multiple advantages: They could bepurchased as rovers only; they couldrun LigGeo and CadGeo proprietary software; they arecompatible with local third-party networks, including CEGAT, Brazil's largestprivate RTK geodetic base network, that delivers RTK network correctionsenabling real-time accuracy of less that20 cm; and they offered direct two-way3G communication of information with the SABESP central cartographic baseraster files.

Source: GISuser

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