Revisions to Reuse Guidelines - Hawaii Department of Health€¦ · Revisions to Reuse Guidelines...
Transcript of Revisions to Reuse Guidelines - Hawaii Department of Health€¦ · Revisions to Reuse Guidelines...
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Revisions toReuse Guidelines
DOH Wastewater BranchPacific Water Conference
Feb 2016
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Overview
MajorChanges
Vol. 1Facilities
Vol. 2Projects
Process
Purpose
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Purpose
Streamlineto Promote& Increase
RW Use
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Process: Ad Hoc Committee
Private:
• Consultants,landholders
• Hawaii FarmBureauFederation
Public:
• WWB, BWS,DW, AG,DLNR
• Maui, Kauaicounties
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Private SectorAllan Schildknecht Pacific Pipe Co.
Eassie Miller Kennedy Jenks Consultants
Elson Gushiken ITC Water Management, Inc.
Jon Nishimura Fukunaga & Assoc., Inc.
Lauren Roth Venu Roth Ecological Design Intl.
Mark Kijima Hawaii Farm Bureau Fed.
Michael Street SSFM International
Peter Ono Brown & Caldwell
Steve Parabicoli Limtiaco
Victor Moreland Moreland Consulting, LLC
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Public SectorBarry Usagawa Board of Water Supply
Brian Kau Dept. of Agriculture
Derek Takahashi County of Maui - WW
Ed Tschupp County of Kauai - WW
Neil Fujii Dept. of Land & Natural Resources
Norris Uehara Dept. of Health – DW
Robert Whittier Dept. of Health – DW
Sina Pruder Dept. of Health – WW
April Matsumura Dept. of Health – WW
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Major Changes
Reorganize - 2 volumes
Simplify application
Agriculture use
Simplify GWM
Approve delayed projects
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Changes
Two volumes based on intended user:
V1: FACILITIES
Designers, Engineers
Purveyors
V2: PROJECTS
Irrigation specialists
Landscape architects
End users
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Changes – Content of each volume
V1: Facilities
• R-1, R-2, R-3Standards
• ConstructWWRF
V2: Projects
• RW Uses• BMPs• How to
Apply forprojects
Most changes concern RW projects
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Changes – For RW project applications,no longer require:
Topographic Maps
Evapotranspiration Data
Design Basis
Engineering Report
Groundwater Monitoring Plan
User Management Plan
Training Plan
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Changes - Application
Instead submit:
• Two-page application form
• Construction plans
User Plan
• Replaced with BMPs & component
Training Plan
• Replaced with training guidance
identification in Guidelines
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Changes – Two Page Forms
Agricultural Irrigation
Non-Irrigation Use
Temporary R-1 Use
General Irrigation
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General Irrigation Application Form:
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Changes– Agricultural Use
Application process:
• Form shortened from 9 – 2 pgs.
• Plans – less details
• <15 acres – owner can prepare
Encourage use:
• R-1 allowed for all crops
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Changes– Simplify GWM
Maps show areas where RWapplication is:
RW use in sensitive areas mayrequire soil or GWM.
•
•
unrestricted
conditional; orrestricted.
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Changes– GWM
Maps of islands are color-coded.•
Unrestricted
ConditionalContact DOH
RESTRICTEDContact DOH
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Changes – GWM
Soil/GWM for sensitive areas.
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Changes – ATC Expiration
Approval to Construct (ATC)•
•
ATC expiration after 2 years.
Apply for ATC extension.Provide updates.
•
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Volume 1
REUSE GUIDELINESVOLUME I: RECYCLED WATER FACILITIES
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Vol. 1: Facilities – RW Grades
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R-1Parameters
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R-2 Parameters
R-3 Parameter
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Tables in Appendix A
Fecal Coliform: R-1, R-2 (#/100mL)
RW MedianDensity
(1 exceedance perDensityof Every
Density 30-day period) Sample
R-1 <= 2.2 <= 23 <= 200
R-2 <= 23 <= 200 n/a
R-3 n/a n/a n/a
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WWRF Construction
Ensure proper,continuous treatment
AlarmsAdequate
Redundancy(power, etc.)
BackupDisposalSystem
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WWRF Application Submittal
ENGINEERING REPORT(Vol. I, Sec. H)
Basis of DesignPopulationFlow ProjectionWastewater CharacterizationSchematic of Treatment TrainMass Balance for Process UnitsLoading, Size, Capacity CalculationsContinuous Monitoring
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WWRF Application Submittal
CONSTRUCTION PLANS(Vol. I, Sec. I)
Acreage, TMKScaled plot planLocation, dimensions of unitsSetback distances metSchematic flow diagram of unitsEquipment type, size, capacity
Graphic scale if plans reduced
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WWRF Application Submittal
APPROVALS(Vol. I, Sec. J)
ATC – Approval to Construct
Final inspectionConstruction completeNotify DOH >= 2 weeksSchedule inspection
ATU – Approval to Use
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Annual Reporton RW Supplied for Use
Done by RW Purveyor
Due Feb 19
Volume supplied each month
Total volume supplied duringyear
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Volume 2
REUSE GUIDELINESVOLUME II: RECYCLED WATER PROJECTS
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Suitable Uses for RW –examples(Vol. 2, Sec. D)
All landscape &agricultural irrigation
Golf courses, trees w/fruit
that has minimal RW contact
Non-edible vegetation in
areas w/ limited public access
R-1
R-2
R-3
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Color-CodedIrrigation Areas(App. A1)
Soil/GWMfor sensitive
areas.
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BestManagement
Practices(BMPs)
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BMPs - Design
Prevent runoff, overspray
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BMPs - Design
Rain sensors
Automatic irrigation controllers
No cross-connections
Backflow prevention
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BMPs - Design
No standard
hose bibs.
Secure
bibs.
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BMPs – Routine Monitoring
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BMPs – Component Identification
Identify:
Pipes, valves, valve covers,pumps, backflow devices
Manhole covers, firehydrants, sprinkler heads
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BMPs – Component Identification
Methods:
Paint purple (Pantone 512 orequal)
Label, stamp, tag
“Recycled Water,” “RecycledWater – Do Not Drink”
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BMPs – Component Identification
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BMPs – Component Identification
Time toRepaint
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Public Warning Signs
Signage: written & pictorial
Minimum size: 8.5” x 11”
Recommended spacing <= 250 ft.
Post around RW impoundments
Post on RW water trucks
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Sample Warning Signs
R-2 Recycled Water Used for IrrigationDO NOT DRINK
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Sample Warning Signs
NO ENTRYR-1 recycled water used
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Sample Warning Signs
R-1 Recycled Water Used for IrrigationDO NOT DRINK
A positive message can be added:
CONSERVING HAWAII’SPRECIOUS WATER RESOURCES
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Warning Signs
Warning signs are meant to be seen.Ensure visibility & replace faded signs.
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Owner Responsibility - Training
• Do not drink RW
• Wash handswith soap & DW
• No RW contact witheyes, nose, mouth
• RW component identification
• No standard hose bibs
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Operation & Maintenance
Apply so no runoff or ponding occurs.
Schedule when public not present.
Regular cross-connection testing.
Notify purveyor of malodorous RW.
Maintain component identification.
Maintain visible warning signs.
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Recycled Water Manager
Designated by owner
Good knowledge of RW systems
Maintain system & schedule
Log maintenance work
Implement BMPs
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RW Project Application
Submit application form& plans
Approval to Construct (ATC)
Final DOH inspection
Approval to Use (ATU)
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Questions?
Website:
http://health.hawaii.gov/wastewater
Phone:
(808) 586-4294
Email: