Sewerage Treatment RMGV Cariacica Bandeirantes system expansion Home extensions, sewage and collector trunks extension. Implantation of elevator Rosa Maria da Penha system expansion Vila Velha Araçás system expansion Home extensions, sewage and collector trunks extension. Implantation of elevator units. Sewerage Treatment Plant Ulisses Guimarães – Vermelha system expansion According to CONAMA resolution 377 and IEMA IN 12/2008 these systems present themselves with the following size. Table 6.3 – Enterprise size System/City (Hab.) STP current capacity (l/s) STP final capacity (l/s) Size (1) Size IN (1) Marechal Floriano 6,499 0 12.6 Small Small Cariacica SES Bandeirantes expansion 31,100 250 250 Midsize SES Rosa da Penha expansion 5,173 48 48 Small Vila Velha SES Araçás expansion 29,872 400 650 Midsize Terra Vermelha 41,915 30 150 Midsize The following table 6.4 presents the main environmental impacts of the sanitation component and its significance and plans/programs measures assessment regarding the programs environmental management plan. Table 6.4 - Main Impacts and Risks Summary IMPACTS AND RISKS SIGNIFICANCE MITIGATION PLANS/PROGRAMS CONSTRUCTIONS WORKS Dwellers bothering Mild Construction planning and careless procedures and disclosure actions Environmental construction manual e e
Interference with public systems Little significance Construction planning and articulation with traffic and service companies Environmental construction manual Vegetation suppression Mild Adequate constructive methods and restitution of the effected vegetation Environmental construction manual Degradation of areas and loan deposits Mild Construction planning and recovery of degraded Environmental construction manual Accidents Mild Accidents prevention procedures and construction planning Environmental construction manual Generation of waste dumps Mild Licensed residues destination Environmental construction manual Solid carriage to the rivers Little significance Adequate constructive methods Environmental construction manual Scaring of wild animals Little significance Construction planning and careful procedures Environmental construction manual Interference with archeological patrimony Mild Rescue occurrences and provide research Environmental construction manual SYSTEMS OPERATION Improvement of the water quality conditions Mild Adequate system operation and maintenance STPs and receiving bodies monitoring Sludges and residues disposal Significant Adequate final destination Definition of the rotes of adequate disposal Sludge management Odors Mild Adequate system operation and maintenance Contingency and risks Gas emissions to the atmosphere Little significance Combustion of the gas generated in the anaerobic reactor Contingency and risks Sewage overflow in residences Mild Adequate system operation and maintenance Contingency and risks Stops of the pumping and treatment systems Mild Adequate system operation and maintenance Contingency and risks Analyzing the above, it can be seen that the negative impacts during the implantation stage are, in general, localized, transitory and have little or mild significance, mainly arising from the construction activities. However, according to the size and location, can present interferences as: Natural habitats – permanent preservation areas; Cultural and archeological patrimony; Commercial and/or residency buildings.