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Drain Commission
Storm Water Management
Storm Water Management
Administrative Guidelines for Storm Water Management
Appendix A - Gratiot County Application (PDF)
Appendix B - Conceptual Review Checklist (PDF)
Appendix C - Drainage Plan Checklist (PDF)
Appendix D - Detention Pond Calculator (XLS)
Appendix E - Chart for C Factors (PDF)
Appendix F1- Maintenance Agreement Fillable (DOC)
Appendix F2- Maintenance Agreement Printable (PDF)
Appendix G - Inspection Daily Report (PDF)
Appendix H - Detention and Restriction, Final Inspection Report (PDF)
Appendix I - Engineer Certificate of Outlet (PDF)
Appendix J - Engineer Certificate of Construction (PDF)
Gratiot County Drain Commissioner Rules and Guidelines (PDF)
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Drain Agreements & Applications
Drain Assessment Payoff Form
Fee Schedule
Pre-Qualified Contractors List
Storm Water Management
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