Offices Closed for Memorial Day: All county offices will be closed on Monday, May 27, for the holiday. This includes parks offices, public works, courts and all other administrative offices. Offices will re-open Tuesday, May 28.
Commercial Construction Information Sheet
Aerobic Wastewater Treatment Systems Information
911 Rural Addressing Application
Affidavit of OSSF Requiring Maintenance
Culvert Permit Application
Site Evaluator Information Sheet
TxDOT Driveway Permit Information Sheet
Construction Activities Storm Water Brochure
The Dirty Dozen: 12 Tips to Prevent Storm Water Pollution
BOD (Biological Oxygen Demand) Testing Center Information Sheet
Collin County Storm Water Program
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