Agenda - 06-01-2010 - 8a - Laserfiche WebLink

Browse Search

37 permitted" system. All the wastewater generated was treated to the same tertiary treatment level required by the DENR permit. Currently, neither wastewater treatment system is being used, and the University has a pump and haul permit to handle wastewater on the site in the short term. To accomplish this, a temporary pipe connection was made to collect all wastewater flow from all buildings and store it in the existing influent equalization basin. The contents are periodically pumped out by a licensed septage hauler and trucked to the Orange Water and Sewer Authority (OWASA) Mason Farm Wastewater Treatment Facility in Chapel Hill. This arrangement will be continued until the construction of the new treatment system, which will treat all wastewater from the site (both animal and domestic) to the level of reclaimed water for nonpotable water reuse on the site. Question #5: Has the University of forth Carolina Chapel Hill evaluated the facilities for any other wastewater /water treatment issues? If so, please indicate the findings. Response: The University and McKim & Creed have completed a comprehensive engineering assessment of the entire existing water /wastewater infrastructure at the site. Based on those findings, the University is proposing a variety of upgrades, improvements and equipment replacements along with the proposed new integrated total water management improvements. The design has not been finalized, but may include the following: 1. Upgraded gravity sewer collection to serve the expanded campus. 2. Influent wastewater lift station. 3. New mechanical fine screening process with residual washing, compaction and bagging processes. 4. New dual - train biological nutrient removal process. 5. New 10 micron cloth disk filtration process. 6. New 0.05 micron microfiltration process. 7. New effluent polishing process (granular activated carbon adsorption) 8. New dual barrier disinfection process 9. New fire protection storage, pumping and distribution system. 10. Reclaimed water service connections to each building to provide flushwater for toilets, animal wash -down water, and landscape irrigation. 11. Reclaimed water service connection to the proposed new Central Energy Plant to provide cooling tower makeup. 12. Wet weather reclaimed water equalization basin to store effluent during wet weather conditions. 13. New 20 -acre reclaimed water irrigation system. 14. New groundwater well to provide a reliable, redundant backup to the one existing potable water well supply currently located onsite.