Cultus Lake Park Sanitary Sewer Infrastructure Assessment

Fraser Valley Regional DistrictCultus Lake Sanitary Sewer Infrastructure Assessment – Final Report6.0 Treatment and Pumping Options EvaluationThe advantage and disadvantage of each Option considered are summarized in Table18.Table 18: Treatment and Pumping Options – Advantages and DisadvantageDescription Advantages DisadvantagesOption 2 – Treatment toClass C effluentOption 3 – Treatment toClass A effluent• Moderate capital cost• Higher effluent qualitycompared with Option2• Upgrading of disposalfields is minimal• Relocating of waterpark’s wells is notrequired• Reduce nutrients(ammonia andphosphorus) loads onCultus Lake• High operating cost• Require chemical handling• Require Permanenttreatment operation andmaintenance staff• Require expansion ofdisposal fields• Changes in theenvironmental regulationmay trigger expensiveupgrades• Relocating of water park’swells is required• Future equipmentreplacement cost is high.• Sludge transportation withinthe community streets isrequired• Odour control is moredifficult compared withOption 4• Less effluent qualitycompared with option 3• Changes in theenvironmental regulationmay trigger expensiveupgrades• High capital cost• High operating cost• Require chemical handling• Require Permanenttreatment operation andmaintenance staff• Future equipmentreplacement cost is high.• Sludge transportation withinthe community streets isrequiredProject No. 30825 – September, 2012 Page 25