National Swimming Pool Survey

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National Swimming Pool SurveyCDC

• Office of Environmental Health Services

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CDC Aquatic Inspection Study

• Current study undertaken by CDC to collect
  aquatic inspections nationwide and assess
  regulatory compliance
• Lead researchersCharles Otto, Michele Hlavsa,
  and Beth Dunbar
• Published in CDC MMWR week of 5/20

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CDC Aquatic Inspection Study

• 2002 CDC published first ever cross-section of
  data from results of pool inspections (However,
  gt85 of entire study wascomprised of Florida
  inspection results)

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CDC Aquatic Inspection Study

• 2002 CDC Pool Studyresults
• Looked at 22,131 inspections
• 21,561 pool code violations
• 54.1 of inspections gt1 violation
• Range of 0-12 violations/inspxn
• 8.3 resulted in closure

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CDC Aquatic Inspection Study

• Violation categories
• Water Chemistry 38.7 of total violations
• Filtration Circulation 38.6 of total
  violations
• Policy Management 22.7 of total violations

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CDC Aquatic Inspection Study

• Facility categories
• Kiddie/wading pools 18.7 of total
  violations
• Medical/therapy pools 14.3 of total
  violations
• Hotel/motel pools 14.0 of total violations

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CDC Aquatic Inspection Study

• Now2008 Studycollect aquatic inspections
  nationwide and assess regulatory compliance
• Why?
• Budget cuts threaten programs across country
• Increase publicity for inspection programs
• Follow-up to 2002whats changed?
• Lay groundwork for National Model Aquatic Health
  Code

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CDC Aquatic Inspection Study

• Data
• Disinfectant residual
• pH level
• Other water chemistry (cyanurate, CH, turbidity,
  total alkalinity, algae)
• Filtration Circulation (backwash, filter,
  pressure gauges, chemical feeders,
  cross-connections, flow meter, recirculation
  system, turnover)
• Policy/Management (test kits, operator training,
  log/record keeping)
• Inspection Results (closure)

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CDC Aquatic Inspection Study

• How will the data be used?
• 3 Groupings
• Pool Type (pool, spa, interactive fountain)
• Pool Setting (motel/hotel, municipal)
• Most common inspection items (water chemistry,
  filtration/circulation, etc)

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CDC Aquatic Inspection Study

• A funny thing happened on the way to the CDC.
• Notified last week that data set cleaning and
  analysis was taking too long
• Virginia data was not included in final study
  despite extensive OEHS efforts over the last 6
  months
• But its not all bad news.

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CDC Aquatic Inspection Study
Violation Type 2002 Nation 2008 Nation Virginia
Pool closure 8.3 MMWR 2.7
inspections gt1 violation 54.1 MMWR 47.6
Water Chemistry Disinfectant pH Other water chemistry 11.1 7.8 17 MMWR MMWR MMWR 5.9 4.9 0.6
Recirculation Filtration 29.9 MMWR 15.4
Policy Management Pool log improperly maintained Unapproved test kit Pool license Operator lacks certification 16.5 3.4 3.6 25.1 MMWR MMWR MMWR MMWR 4.3 1.3 3.9 0.1
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CDC Aquatic Inspection Study

• What were some of the challenges with the data?
• 216 distinct violations (can cite state vs. local
  code) increases denominator size affecting
  relative size of proportion
• Data entry VARIES DRASTICALLY across Virginia
• Unable to extract meaningful data to inform
  decision-makers

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CDC Aquatic Inspection Study

• Next Steps.
• Donate data to CDC for next project
• Utilize recommendations from CDCs model pool
  code to inform changes in VENIS
• Continue to inspect pools for public health!

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CDC Aquatic Inspection Study

• Questions?