Welcome to the CA Pool & CNSL Assistant!

Spend less time searching and more time at the pool!

  • Find pools by features and opening hours. A one-of-a-kind way to choose the right pool.
  • Keep schedules organized. Choose a list or calendar view for pool and team plans.
  • Stay current. Pool schedules are updated shortly after CA publishes updates.
  • Set preferences. Choose a favorite pool, team, and other options.
  • Accessible by design. Use clear, keyboard-friendly controls with screen-reader support.
  • Use it your way. Visit the website or install the app. It works offline except for live weather.

Free and private: Free and anonymous. Settings stay on your device. Personal data is not tracked.

Independent community project: This is not an official CA or CNSL web app and is not affiliated with either organization.

CA Pool & CNSL Assistant

Thunder Hill Pool

Address
9205 Log Chain Rd, Columbia, MD 21045
Phone
410-730-5563
Pool
6 lanes, 25 meters
Features
diving board, lap, sand volleyball, shade, tot lot, wading, wifi

View current hours and details in the pool directory

Published Pool Schedule

to

  • Sat, Sun, Mon: 12:00pm to 7:00pm — Laps, Rec Swim

to

  • Mon, Tue, Wed, Thu, Fri: All day — Closed to Public
  • Mon, Tue, Wed, Thu, Fri: 5:00pm to 7:00pm — CNSL Practice Only
  • Sat, Sun: 12:00pm to 7:00pm — Laps, Rec Swim

to

  • Mon: 12:00pm to 8:00pm — Laps, Rec Swim
  • Tue: 8:00am to 10:00am — CNSL Practice Only
  • Tue: 10:00am to 5:00pm — Closed to Public
  • Tue: 5:00pm to 8:00pm — CNSL Practice Only
  • Wed, Thu, Fri: 8:00am to 10:00am — CNSL Practice Only
  • Wed, Thu, Fri: 12:00pm to 8:00pm — Laps, Rec Swim
  • Sat: 7:00am to 12:00pm — Swim Meet
  • Sat: 12:00pm to 8:00pm — Laps, Rec Swim
  • Sun: 12:00pm to 7:00pm — Laps, Rec Swim

to

  • Sun, Mon, Wed, Thu: 12:00pm to 7:00pm — Laps, Rec Swim
  • Tue: All day — Closed to Public
  • Fri, Sat: 12:00pm to 8:00pm — Laps, Rec Swim

Schedule Exceptions

— CNSL swim meet before public hours

  • Sat: 7:00am to 12:00pm — Swim Meet
  • Sat: 12:00pm to 7:00pm — Laps, Rec Swim

— CNSL swim meet before public hours

  • Sat: 7:00am to 12:00pm — Swim Meet
  • Sat: 12:00pm to 7:00pm — Laps, Rec Swim

— Holiday hours

  • Fri: 12:00pm to 7:00pm — Laps, Rec Swim

— Holiday hours

  • Sat: 12:00pm to 7:00pm — Laps, Rec Swim

Please check the official schedule link above for source details and last-minute changes.

Swim Teams at This Pool

Settings

Changes apply automatically, and your choices stay on this device.

Favorites
Schedules
Swim Team Practice Groups

Select the swim team practice groups you are interested in. A published time for a combined age range is shown when it includes a selected group.

Pool schedule view
Pool visits
Weather safety alerts

Weather is checked only from one hour before the first scheduled pool activity until pools close. Checks use a fixed Columbia-area point, not your current location. Visible alerts show when they were last updated. View weather source details.

No weather check has been recorded in this tab yet.

Pool distance

This is off by default. If you turn it on, the Pools page asks your browser for your location only long enough to estimate pool distances. The app does not track, save, or send your location.

Pool tile title

Choose which information appears to the right of each pool title.

Estimated miles when location access is on.

The pool's current Google rating.

Time until public access changes.

Display & Accessibility
Theme
Text size
Contrast
Motion
Page content
Experimental FeaturesExperimental 0/0 enabled

Loading experimental features...

Experimental features may change or provide incomplete information. Please do not rely on them as your only source, and validate all information with your team and official sources.

App Maintenance
Refresh app files

Check for the latest app files and reload without changing your preferences.

Restore preference defaults

Return favorites and other preferences to their defaults on this device.