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Latin America Sanitation Company Goes with ProMark

March 25, 2015  - By

Photo: Saneamento Basico do Estado de São Paulo (SABESP)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 percent of the population of São Paulo state. Water loss due to leakage in the SABESP network is a significant problem. The biggest reason behind water loss is leaks in the network; additional factors include sub-metering, caused by low water pressure; unauthorized consumption; and fraud. 

Improving water management, recovering lost revenue and improving the quality of the customer experience is a priority for SABESP, Spectra Precision said. To help improve revenue generation and reduce water loss, SABESP developed two projects: LigGeo, to geo-reference the water meter location of approximately 4.8 million SABESP customers; and CadGeo, to geo-reference and register the location of the SABESP water and sewage network infrastructure.

According to Marcos Almir, sanitation systems analyst for the metropolitan department of development and management of SABESP, the twin projects of LigGeo and CadGeo were motivated by SABESP’s desire to improve productivity and competitiveness. “We created an innovative GIS effort to geo-reference and register SABESP distribution networks and buried assets. Tests showed the technical feasibility of using ProMark GNSS receivers and collectors with NTRIP technology to efficiently and effectively register all SABESP equipment in real time with geo-referenced attributes connected to the technical and commercial enterprise systems to optimize processes and reduce costs.”

To implement the LigGeo and CadGeo projects, SABESP purchased 50 ProMark 120 and 220 GNSS receivers from Hezolinem Equipamentos Topograficos, Spectra Precision’s Brazil dealer. Both SABESP technicians and outsourced service providers will use the receivers.

ProMark 120/220 GNSS receivers were chosen for their multiple advantages: They could be purchased as rovers only; they could run LigGeo and CadGeo proprietary software; they are compatible with local third-party networks, including CEGAT, Brazil’s largest private RTK geodetic base network, that delivers RTK network corrections enabling real-time accuracy of less that 20 cm; and they offered direct two-way 3G communication of information with the SABESP central cartographic base raster files.

 

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