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Seacoast Utility Authority Water Use Permit

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... Area includes: Palm Beach Gardens. North Palm Beach. Juno Beach ... Cypress Creek. Consumptive Use Permit Rule Protections for ... Beach Gardens Wellfield ... – PowerPoint PPT presentation

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Title: Seacoast Utility Authority Water Use Permit


1
Seacoast Utility AuthorityWater Use Permit
Steven Memberg, Section LeaderWater Use
Regulation Division, Water Supply
DepartmentJanuary 26, 2009
2
Seacoast Utility Authority
Loxahatchee River
Seacoast Utility Service Area
3
Seacoast Utility Authority
  • Utility Service Area includes Palm Beach
    Gardens
  • North Palm Beach
  • Juno Beach
  • Lake Park Unincorporated areas of
    PBC

Hood Road Wellfield
PBG Wellfield
NPB Wellfield
Burma Road Wellfield
4
Seacoast Utility Authority
  • Originally permitted in 1976
  • Current Allocation
  • Population 101,664 (2005)
  • Per Capita 190
  • Annual 19.31 MGD
  • Proposed Allocation
  • Population 102,423 (2012)
  • Per Capita 190
  • Annual 19.46 MGD

5
Consumptive Use Permit Rule Protections for the
Loxahatchee
  • Minimum Flows and Levels (MFL) covers
  • Northwest Fork of the Loxahatchee River
  • (G-92 to River Mile 6)

6
Consumptive Use Permit Rule Protections for the
Loxahatchee
  • Minimum Flows and Levels (MFL) covers
  • Northwest Fork of the Loxahatchee River
  • (G-92 to River Mile 6)
  • Including tributaries
  • Kitching Creek
  • Hobe Grove Ditch
  • Cypress Creek

7
Consumptive Use Permit Rule Protections for the
Loxahatchee
  • Minimum Flows and Levels (MFL)
  • MFL violation occurs when an exceedance occurs
    more than once in a six year period.
  • Flows over Lainhart Dam decline below 35 cfs for
    more than 20 consecutive days.
  • Average daily salinity concentration on a
    20-day rolling average exceeds two parts per
    thousand at river mile 9.2
  • Northwest Fork is not currently meeting the MFL,
    therefore rule requires implementation of a
    recovery strategy

8
Consumptive Use Permit Rule Protections for the
Loxahatchee
  • Recovery Strategy
  • One component of recovery strategy is the
    implementation of the Regional Water Availability
    Rule

requested allocation will not cause a net
increase in the volume or cause a change in the
timing on a monthly basis of surface and ground
water withdrawn from the North Palm Beach County
/ Loxahatchee River Watershed Waterbodies over
that resulting from the base case
9
Seacoast Utility Authority
Loxahatchee River
Seacoast Utility Service Area
Loxahatchee River Watershed Waterbodies
10
Seacoast Utility Authority
  • Regional Water Availability
  • Calibrated groundwater flow model
  • Annual requested withdrawal of 8,084 MG modeled
    to accommodate two operating plans
  • Prime Scenario Hood Road Wellfield
  • Alternate 1 Palm Beach Gardens Wellfield
  • Transient model using a 27-month scenario
    simulating 1-in-10 drought conditions

11
Seacoast Utility Authority
12
Staff Evaluation
  • Regional Water Availability
  • No net increase in the volume or change in timing
    on a monthly basis of surface and ground water
    withdrawn from the Waterbodies
  • Minimum Flows and Levels (MFL)
  • No direct or indirect withdrawal from MFL body
  • No contribution to existing MFL violations
  • Other environmental considerations
  • Drawdown impacts and mitigation for wetlands in
    the wellfields cone of influence are still under
    evaluation.
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