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Bear Trap Dunes Water Treatment Facility

Bear Trap Dunes Water Treatment Facility. Report conducted by. KPC Water Team. S Team members Tim Sweany Trevor Irvine Thomas Burton Tyler Wingate S Experience 10 years combined experience in Water/Wastewater field. Mission.

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Bear Trap Dunes Water Treatment Facility

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  1. Bear Trap Dunes Water Treatment Facility Report conducted by

  2. KPCWater Team STeam members • Tim Sweany • Trevor Irvine • Thomas Burton • Tyler Wingate SExperience • 10 years combined experience in Water/Wastewater field

  3. Mission KPC Environmental Group is an environmental company which performs water treatment consulting in Delaware. • Purpose: Analyze Bear Trap Water Treatment plant • Determine compliance with regulations/ permits • Issue findings • Make Recommendations for possible improvements

  4. Bear Trap Customers SArea Served • Bethany Bay/Ocean View System • One of Five water treatment plants

  5. Bear Trap Customers SPopulation Served • 814 accounts in Bear Trap development • Seasonal occupancy (5,043 accounts system wide) • 3,992 Full time residents in system • 21,058 Transient residents from May-September

  6. Aerial View of Facility

  7. Facility Overview SConstruction Dates • Wells - April 2007 • Plant - May 2008 • Open - May 2008 SWells • Well #1- 675 gpm • Well #2- 425 gpm • Water tower- 350,000 gal • Average production- 500,000 gpd • Maximum production- 775,000 gpd at 540 gpm • Maximum design production- 1,728,000 gpd

  8. Treatment SPre-filtration Chemical Addition • Caustic, Chlorine, & Potassium Permanganate SGreensand Filtration • 3 Filtration units with 540 gpm total flow • 180 gpm per filter SPost-Filtration Chemical Addition • Caustic, Chlorine (Disinfectant) & Zinc Orthophosphate SFilter Backwash • Stored in decant tank • Re-treated at 54 gpm

  9. Sampling, Testing and Data Recording SPotassium Permanganate Analyzer SChlorine Analyzer SpH Analyzer SChart Recorders • Chlorine • pH • Tower level • Decant tank level

  10. Operator Lab and Testing SDistribution sample • Once per week STreatment plant sampling • Pre-filtration • Post-filtration (each filter) • Effluent • Chlorine • Iron • pH • Zinc

  11. Research and Regulations SOperating Requirements • Operator visit three times per week SDistribution System Monitoring Requirements • Monthly Bacterial 30 (May-Sept.) 4 (Oct.-April) • Lead and Copper 40 every six months • WQP2 6 every six months SFacility Monitoring requirements • RIOC 1 every 9 years • RRAD 1 every 3 years • Fluoride and Nitrate 1 every year SState of Delaware Drinking Water Branch

  12. Research and Regulations cont. SMonitoring Summary • System failed lead and copper (2009-2010) • Bear Trap Dunes area had no failures SWater Characteristics

  13. Audit SKPC conducted a facility audit/sanitary survey on 04/28/2012 • Toured the plant • Asked operator questions • Viewed records SReviewed available permits • Researched information about system on state website

  14. Audit Findings SShower/Eyewash Station • Not clear of obstructions • Difficult to access in emergency SCaustic Soda Tank • Not located in chemical room • Creates PPE issue in Filter area SConfined Space • Decant Tank entry points not labeled as Confined Space SHousekeeping

  15. Audit Findings SOperations and Maintenance Manuals • Manuals provided by Tidewater are lacking key elements • They do not include Greensand units SStandard Operating Procedures • Not yet created SPlant Production • Rated for 1200 gpm • Produces 540 gpm SDecant Tank Size • Inadequate • Must be pumped every six days

  16. Audit Findings SConnection Discrepancy • State-6,804 connections • Tidewater-5,043 accounts SFacility Walls • Made of plywood SWeekly manual m-scope readings • Additional time • Possibility of contamination SNo PPE onsite

  17. Recommendations SShower/eyewash Station • Tank configuration re-ordering to allow access • Change location of eyewash station SCaustic Soda Tank • Put in chemical room • Put exclusion zone around tank SConfined Space • Add sign to all entrances SHousekeeping • Allocate time for organization

  18. Recommendations SStandard Operating Procedures • Create a book of SOP’s available for review at the facility SOperations and Maintenance Manuals • The manuals should be revised to include information on greensand units SPlant Production • Missing out on production ability that you paid to receive • Possibility of future growth necessitates a solution SDecant Tank Size • Additional tank • Expand existing tank

  19. Recommendations SWeekly manual m-scope readings • Permanent level reading device with chartable readings SConnection Discrepancy • Accounts vs. Connections SFacility Walls • Add a dehumidifier • Replace walls with fiberglass reinforced plastic walls that were described in design specifications SNo PPE onsite • Personal protective equipment at the facility

  20. Conclusion • Facility is in compliance with regulations SMain issues to be addressed • Safety • Shower/eyewash station • Caustic soda tank location • Confined Space signs and SOP for sludge removal • O&M Manuals • Need revision, and additions

  21. The End

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