State of Hawai’i Department of Education Large-Capacity ...hwea.org/.../2015/03/27_StateofHawaiiDOELargeCapcityCesspool1.pdf · State of Hawai’i Department of Education Large-Capacity

State of Hawai’i Department of EducationLarge-Capacity Cesspool Conversion/Closure ProjectDOE Project Coordinator: Gaylyn Nakatsuka, RACH2M HILL Design-Build Manager: Greg Smith, DBIACH2M HILL Design Manager: Dawn Barsana, PE

Hawai’i Water Environment AssociationHonolulu, Hawai’i

March 18, 2010

HWEA Annual Conference March 18, 2010 HDOE Large Capacity Cesspool Closure/Conversion Project

Presentation Overview Project Background Contract Procurement Scope of Work Project Schedule EPA Driven

Project Components Investigation/Design Construction

Project Results


Project BackgroundEPA Regulation on Large-Capacity

CesspoolsDOE Inventory60 Schools5 Islands

EPA Consent Agreement/Final Order Deadline


Contract ProcurementRFP ProcurementDesign-Build DeliveryContract 320 Cesspools 55 Schools 5 Islands

CAFO Challenges


Scope of WorkDesign-Build Contract InvestigationsDesign/PermittingConstructionReporting/Monitoring


Project Schedule Design-Build Contract was signed March

2006 Investigations started March 2006 Design/Permitting began Early April 2006 Construction began January 2007 All cesspools are now either backfilled or

converted Two Honoka’a schools are awaiting

connection to the County system


Investigations Investigation Teams Field Teams

2 teams Existing Conditions GPR & Other Utility locating information Cultural or Historical Elements Testing and Soils Testing Construction method feasibility

Office Team Existing information


Site Investigations

Overgrown restrooms


Site Investigations

GPR assisted in finding location of existing

utilities


Site Investigations


Design/PermittingBackground on EPA Requirement Definition of Large Capacity

Cesspools (LCCs)EPA RegulationWhy the RegulationSome Non LCCs

were converted


Design/PermittingGoals Determine most feasible solution based on

specific site conditions Selection and proper sizing of appropriate

treatment Provide buildable construction drawings,

details, specifications and costs Provide engineering/design support and

guidance for unforeseen challenges/situations

Acquire necessary permits and approvals f li bl i


Design/PermittingDesign Solutions Closure of cesspool; connection to County

system Closure of cesspool; installation of septic

tank and leachfield Conversion of cesspool into injection well;

installation of septic tank Conversion of cesspool into injection well;

installation of package treatment plant


Design/PermittingChallengesVery limited existing informationBasis of Design/Design Criteria

Per capita rates not applicable

Consulted heavily with DOH WWB and SDWB

Permit acquisitionSite/Soil Conditions


Design/PermittingDeliverables Construction Drawings & Specs Permits As-Builts Reporting information Cultural reports Project Completion

Binders


Design/PermittingAccomplishmentsCoordinated with EPA, DOH and

County agenciesApproximately 460 Department of

Health Permits submitted 175 IWS Permits 108 Backfill and Abandon Permits 177 Injection Well Permits to Operate

As-Built/Record Drawings and closure binders for each school


Design/Permitting


Construction

Coordination of multiple sites/islandsSafetyBudget/

Schedule


Construction

Project was really program; with 55 project sitesIntegrationLogisticsChange ManagementPublic Outreach and Client

Coordination


ConstructionChallenges

Differences in work style Acceleration/Deceleration of schedule Coordination across different islands Unforeseen archaeological and historical finds Undocumented site conditions Logistics Mother Nature Different County expectations/regulations


Construction


Construction


Construction


Construction - Safety SAFETY is an integral part of Company

philosophy Our goal to provide a safe environment for not

only the workers, but for the students, staff, faculty and public

Instill the idea that safety isn’t “just a priority”, but should be a way of not only conducting business, but as a way of life

Controlled site access Provided training as needed If unsafe acts were observed, construction

was shut down


Construction - Safety




Construction - SafetyAccomplishments

Established Safety Crew of the Month incentive/reward program

Kept children, staff, faculty, public and workers safe

Developed innovative fall prevention system Shared Value-Based Safety Training, bringing

upon a complete shift in safety performance of subcontractors

240,000 man hours worked, no lost time 2007 National Safety Council “Perfect Record

Award”




Project ResultsClosure of 320 cesspoolsConversion of 177 cesspools to

injection wells/seepage pits 175 septic systems 3 package treatment plants 10 schools connected to County or

Private systemsProvide support (O&M), keeping

inventory of what was built


Project Results


Project Result


Project Results


Project Results


Mahalo!

Thanks for your time.Questions?

Greg Smith | 808.635.6544 | [email protected] Barsana | 808.440.0254 | [email protected]

State of Hawai’i Department of Education Large-Capacity ...hwea.org/.../2015/03/27_StateofHawaiiDOELargeCapcityCesspool1.pdf · State of Hawai’i Department of Education Large-Capacity

Documents