Expansion of SWUCA Public Supply Per Capita Requirements

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Expansion of SWUCA Public Supply Per Capita
Requirements
Jay Yingling, Senior Economist Yassert Gonzalez,
Economist Planning Department April 10, 2007
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Overview

• Background for rule development
• Current and proposed per capita reporting and
  compliance (including significant use deductions)
• Current and proposed service area population
  methods (including district data assistance)
• Other WUCA requirements discussions
• Water conserving rate structures
• Water billing information to customers
• Reclaimed water use reporting
• Residential water use reporting
• Water service area delineation and submission
• Questions/discussion/input
• Next steps

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Background Per Capita

• Review of reported per capita over time indicated
  that the population component was not
  consistently calculated
• Comparing apples to oranges among utilities and
  for a particular utility over time
• Desire to standardize per capita calculations

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Background Per Capita

• Utilities requested a standardized methodology
  during RWSP process
• Level playing field among utilities with
  different levels of seasonal and other
  populations
• Outside of WUCAs, no significant use deductions

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Proposed Per Capita Reporting

• Currently, annual per capita reporting optional
  in areas outside WUCAs
• Propose that all public supply permittees with
  average annual daily quantity 100,000 gpd
  submit per capita use data
• Compliance generally through submission of annual
  public supply survey

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SWUCA Per Capita

• 150 gpcd threshold in SWUCA
• GPCD (Withdrawals Imports Exports
  Treatment Loss - Significant Uses Environmental
  Mitigation) / Functional Population

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Significant Changes for Non-WUCA Utilities

• Required per capita reporting
• Per capita compliance
• Significant use deductions
• Functional population calculations

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Significant Changes for NTBWUCA Utilities

• Significant use deductions changes
• Functional population calculations
• Removal of reuse and desalination credits

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Significant Use Deductions
Per capita water demand should reflect the
population-related demands of the service area
such as residences, K-12 schools, recreation,
local government and businesses that serve the
local service area population. Significant use
deductions are designed to allow you to deduct
all or part of uses, such as large manufacturing,
regional government and health centers and
universities that serve a much broader population
than the service area population.
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Significant Use Deductions

• Single significant uses
• I/C use in excess of District average
• Combined regional government and higher education
  facilities
• Individual regional health facilities
• I/C facilities where the primary ingredient is
  water

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Current Population Estimation Methodology Outside
SWUCA

• Permanent required, others optional
• Assumes ability to estimate permanent and
  seasonal population separately by month
• Assumes no water use while seasonal residents
  away
• Assumes tourists ½ permanent
• Commuters not necessarily net

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Population Issues

• Variety of service area population estimation
  methodologies used
• Service area boundaries not aligned with
  municipal boundaries
• Estimation of seasonal population is optional
• Some utilities seasonally adjust incorrectly
• No allowance for seasonal resident outdoor use
  when away

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Population Issues (Cont.)

• No standardized methodology to estimate tourist
  populations
• No allowance for outdoor water use by tourist
  population
• No standardized methodology to estimate commuter
  population
• No standardized calculation documentation

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Summary of SWUCA Population Methodology

• Permanent, seasonal and group quarters population
  estimation required
• Census ratios, such as persons per household
  based on service area boundaries
• Prescribed method to divide served housing units
  into seasonal and permanent

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Summary of SWUCA Methodology (Contd.)

• Seasonal adjustment allows for non-indoor use
  while seasonal residents away
• Tourist population estimation optional but
  methodology prescribed
• Net commuter population estimation optional but
  methodology prescribed
• Documentation required on worksheets

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How Will Your Estimates Change?

• If estimated seasonal correctly in past,
  population ?
• If estimated seasonal in addition to dwelling
  unit method, population ?
• Easier to estimate tourist population and likely
  to ?
• Easier to estimate commuter population but will
  go down if only counted incoming workers ??

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Data Assistance for Compliance

• Census data for all required calculations
• Peak seasonal and permanent population
• Tourist lodging facilities, rooms occupancy
  data
• Net commuter data

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Other WUCA Requirements

• Water conserving rate structures
• Billing information to customers (SWUCA)
• Reuse customer reporting
• Residential water use reporting
• Service area delineation requirements (SWUCA)

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Water Conserving Rate Structures

• Must provide documentation of water rate
  structure
• No flat or declining block rates
• If comply with per capita requirements, uniform
  rate structure acceptable
• If do not comply, must adopt more aggressive rate
  structure
• Maximum bi-monthly meter read billing

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Utility Customer Billing Information

• Must be provided at least once per calendar year
  to each customer (on bill or separate)
• Rate structure description
• Means to convert units to gallons if not in
  gallons
• Three year historical billing period average use
  by customer class
• Customer billing period usage on bill

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Current Reclaimed Water Use Reporting

• In NTBWUCA must provide reuse service area map,
  customer and disposal information
• In SWUCA must provide bulk customer, individually
  metered residence and disposal information

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Residential Water Use Reporting

• Currently required in SWUCA and NTBWUCA
• Must report on the number of dwelling units,
  metered connections and usage by single family,
  multi-family and mobile homes served

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Service Area Delineation Requirements

• Inside SWUCA, service area more defined and must
  provide updated maps, contact, sales, and
  purchase information, at least every 6 years.
  Non-served areas must be delineated.

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Thank you very much. Any Questions?
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Next Steps

• Ongoing process with additional meetings
• Reporting to Governing Board on April 24, 2007 in
  Brooksville
• Board may take action or seek additional public
  input
• Staff envisions more workshops
• Provide email address to be notified of future
  meetings
• Additional comment on expansion of per capita
  requirements Jay Yingling, ext. 4406.