Updating all references from AguaClara Cornell to ACR

[fletchapin]

Pull request recommendations:

• Name your pull request {your development type}: {short description}. Ex: Feature: flocculator validation
• Link to any relevant issue in the PR description. Ex: Resolves Remove all hard-coded constants from utility files #12, adds flocculator validation
• Provide context of changes.
• Provide relevant tests for your feature or bug fix.
• Provide or update documentation for any feature added by your pull request.

Thanks for contributing!

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