Criteria Manuals, Templates, and Sample Drawings

SEMSWA currently utilizes the criteria and standards that have been adopted by the City of Centennial and Arapahoe County when implementing and regulating stormwater management in each of the respective jurisdictions. Please reference the Manual that is adopted by the jurisdiction in which you are working. All documents listed below are provided in Adobe Acrobat PDF format unless otherwise noted.

4 Arapahoe County Stormwater Management Manual

The Arapahoe County Stormwater Management Manual was adopted by the Board of County Commissioners in January 2007. The Stormwater Management Manual provides requirements for the planning, design, construction, and operation of stormwater facilities within the unincorporated areas of Arapahoe County.

Arapahoe County Stormwater Management Manual
Complete Manual	6.2 MB
Table of Contents	99k
Chapter 1 - General Provisions	72k
Chapter 2 - Stormwater Management Policy & Principles	65k
Chapter 3 - Stormwater Management and Development	102k
Chapter 4 - Drainage Report and Construction Drawing Submittal Requirements	157k
Chapter 5 - Floodplain	139k
Chapter 6 - Hydrology	324k
Chapter 7 - Street Drainage	316k
Chapter 8 - Inlets	395k
Chapter 9 - Storm Sewers	248k
Chapter 10 - Conduit Outlet Structures	218k
Chapter 11 - Culverts and Bridges	97k
Chapter 12 - Open Channel Design	423k
Chapter 13 - Storage	1.3 MB
Chapter 14 - Stormwater Quality	2.2 MB
SEMSWA and Use of the Arapahoe County Stormwater Manual	24k

Additional Resources Referenced
Standard Details *	3.8 MB
Design Checklist *	104k
Standard Maintenance Agreement (Word)	42k
Example Drawings and Checklists for Permanent Water Quality Facilities *	24k
Operations and Maintenance (O&M) Manual Template *	24k

* Under final development - please contact SEMSWA at 303-858-8844 for more information.

4 Arapahoe County Grading, Erosion, and Sediment Control Manual

The Arapahoe County Grading, Erosion, and Sediment Control Manual (GESC Manual) was adopted by the Board of County Commissioners in February 2005. The GESC Manual describes the permitting program that has been adopted to promote environmentally-sound construction practices within the unincorporated areas of Arapahoe County.

Arapahoe County Grading, Erosion, and Sediment Control Manual
Complete Sections (zip)	9.4 MB
Complete Appendices (zip)	20.1 MB
GESC Cover	470k
Acknowledgements	75k
Table of Contents	137k
Section 1 - Regulatory and Permitting	449k
Section 2 - Submittal and Permit Process	380k
Section 3 - Plan and Report Requirements	167k
Section 4 - Grading Criteria, Ten Elements of an Effective GESC Plan, BMP Sizing	2 MB
Section 5 - Field Process and Enforcement	319k
Section 6 - General Construction	2.7 MB
Section 7 - Project Close - Out	230k
Section 8 - Low Impact GESC Permit	177k
Section 9 - Single Family Residential Lot	2.1 MB
Section 10 - Special Requirements for Utility Construction	210k
Section 11 - Temporary Batch Plant/GESC Permit	136k
Appendices List	85k
Appendix A - Contact Information	68k
Appendix B - GESC Notes and Details	4.4 MB
Appendix C - Example GESC Drawings	14.8 MB
Appendix D - Checklist for Dev. GESC Plan	116k
Appendix E - GESC Drawing and Report Checklist	117k
Appendix F - Cost Estimate Spreadsheet Initial/Interim BMPs	60k
Appendix G - Cost Estimate Spreadsheet for Final BMPs	60k
Appendix H - GESC Approval Block	59k
Appendix I - Comprehensive Grading Plan	78k
Appendix J - Standard GESC Permit Application	170k
Appendix K - Low Impact GESC Permit Application	149k
Appendix L - Irrevocable Letter of Credit Form	87k
Appendix M - Example Hold Harmless Letter	64k
Appendix N - Phasing Acceptance Sheet	69k
Appendix O - Letter of GESC Permit Compliance	69k
Appendix P - Initial Close-out Acceptance Forms	132k
Appendix Q - Final Close-out Acceptance Forms	118k
Appendix R - Request for Reduction of Collateral Form	66k
Appendix S - Single Family Lot Certificate	134k
Appendix T - Seed Mix Information	56k
Appendix U - Temporary Batch Plant GESC Permit App.	56k
Appendix V - Noxious Weeds	1.3 MB

Additional Resources Referenced
GESC Standard Notes and Details	3.8 MB
GESC Plan BMP Legend (Auto Cad)	104k
Arapahoe County Standard Approval Block (Auto Cad)	42k
Engineer's Cost Estimate, Initial and Interim BMP's(Excel)	24k
Engineer's Cost Estimate, Final BMP's (Excel)	24k
GESC Manager Designation Form	17k

4 City of Centennial Stormwater Management Manual

The City of Centennial Stormwater Management Manual was adopted by the Centennial City Council in February 2007. The Stormwater Management Manual provides requirements for the planning, design, construction, and operation of stormwater facilities within the City of Centennial.

City of Centennial Stormwater Management Manual
Complete Manual (zip)	4.8 MB
Table of Contents	74k
Chapter 1 - General Provisions	36k
Chapter 2 - Stormwater Management Policy & Principles	51k
Chapter 3 - Stormwater Management & Development	78k
Chapter 4 - Drainage Report & Construction Drawing Submittal Requirements	110k
Chapter 5 - Floodplain	109k
Chapter 6 - Hydrology	585k
Chapter 7 - Street Drainage	103k
Chapter 8 - Inlets	178k
Chapter 9 - Storm Sewers	175k
Chapter 10 - Conduit Outlet Structures	152k
Chapter 11 - Culverts & Bridges	86k
Chapter 12 - Open Channel Design	354k
Chapter 13 - Storage	1.5 MB
Chapter 14 - Stormwater Quality	2.1 MB

Additional Resources Referenced
Standard Details *	3.8 MB
Design Checklist *	104k
Standard Maintenance Agreement (Word)	42k
Example Drawings and Checklists for Permanent Water Quality Facilities *	24k
Operations and Maintenance (O&M) Manual Template *	24k

* Under final development - please contact SEMSWA at 303-858-8844 for more information.

4 City of Centennial Grading, Erosion, and Sediment Control Manual

The City of Centennial Grading, Erosion, and Sediment Control Manual (GESC Manual) was adopted by the Centennial City Council in March 2005. The GESC Manual describes the permitting program that has been adopted to promote environmentally-sound construction practices in the City of Centennial.

City of Centennial Grading, Erosion, and Sediment Control Manual
Complete Manual (zip)	15.8 MB
Table of Contents	32 k
Section 1 - Regulatory and Permitting	161 k
Section 2 - Submittal and Permit Process	175 k
Section 3 - Plan and Report Submittal Requirements	71 k
Section 4 - Grading Criteria, 10 Elements of a Successful GESC Plan, BMP Sizing	755 k
Section 5 - Field Process and Enforcement	135 k
Section 6 - General Construction, BMP Installation, Maintenance	1.6 MB
Section 7 - Project Close-Out	171 k
Section 8 - Low Impact GESC Permit	47 k
Section 9 - Single Family Residential Lot GESC Criteria	104 k
Section 10 - Special Requirements for Utility Construction	73 k
Section 11 - Temporary Batch Plant/GESC Permit	46 k
Appendices List	34 k
Appendix A: Contact Information	4 k
Appendix B: Pages 1 through 4	1.1 Mb
Appendix B: Pages 5 through 9	1.1 Mb
Appendix B: Pages 10 through 14	943 k
Appendix C: Example and Drawings Staged E-2	525 k
Appendix C: Example Drawing Low Impact	23 k
Appendix C: Example Drawings Small Site E-1	422 k
Appendix C: Example Drawings Small Site G-1	195 k
Appendix C: Example Drawings Staged and Phased E-5	794 k
Appendix C: Example Drawings Staged and Phased G-1	131 k
Appendix C: Example Drawings Staged and Phased G-2	573 k
Appendix C: Example Drawings Staged and Phased G-3	656 k
Appendix C: Example Drawings Staged and Phased G-4	436 k
Appendix C: Example Drawings Staged and Phased G-5	688 k
Appendix C: Example Drawings Staged and Phased G-6	711 k
Appendix C: Example Drawings Staged and Phased G-7	629 k
Appendix C: Example Drawings Staged and Phased G-8	744 k
Appendix C: Example Drawings Staged E-1	422 k
Appendix C: Example Drawings Staged E-3	508 k
Appendix C: Example Drawings Staged G-1	208 k
Appendix C: Example Drawings Temporary Batch Plant B-1	195 k
Appendix C: Example Drawings Temporary Batch Plant B-2	235 k
Appendix C: Example Drawings Temporary Batch Plant B-3	229 k
Appendix C: Example Drawings Utility G-1	195 k
Appendix C: Example Drawings Utility U-2	225 k
Appendices D through U	260 k
Appendix V: Noxious Weeds	694 k

Additional Resources Referenced
Appendix F: Engineer's Cost Estimate, Initial & Interim BMP's (Excel)	23 k
Appendix G: Engineer's Cost Estimate, Final BMP's (Excel)	23 k

4 Operations and Maintenance Manual Templates

Operations and Maintenance Manual Templates
Instructions for Preparing a Stormwater Facility O&M Manual (PDF)	21 k
Stormwater Facility O&M Manual (Word)	195 k
Appendix A
Appendix A SEMSWA Maintenance Agreement Template (Word)	50 k
Appendix B
Appendix B Description of Facilities (Word)	27 k
Appendix C
EDB SOP (Word)	280 k
GB-GS SOP (Word)	269 k
PLD SOP (Word)	261 k
SFB SOP (Word)	253 k
Appendix D
SEMSWA EDB Inspection form (Excel)	149 k
SEMSWA GBGS Inspection form (Excel)	148 k
SEMSWA PLD Inspection form (Excel)	148 k
SEMSWA SFB Inspection form (Excel)	148 k
Appendix E
SEMSWA EDB Maintenance form (Excel)	147 k
SEMSWA GBGS Maintenance form (Excel)	147 k
SEMSWA PLD Maintenance form (Excel)	147 k
SEMSWA SFB Maintenance form (Excel)	147 k
Appendix F
Appendix F Annual Inspection and Maintenance Reporting Form (Word)	138 k
Appendix G
Facilities Map checklist (Word)	30 k
EDB Checklist (Word)	35 k
PLD Checklist (Word)	32 k
Sand Filter Checklist (Word)	33 k
Swale Checklist (Word)	33 k
Sample Drawings
EDB PLAN (.dwg)	2.5 Mb
GS Details (.dwg)	2.3 Mb
PLD Plan Details (.dwg)	1.3 Mb
SFB det (.dwg)	1.6 MB
SFB PLAN (.dwg)	3.5 Mb
Commercial site plan facility map (.dwg)	867 k
Residential site plan facility map (zipped .dwg)	7.1 Mb
SEMSWA Title Block (.dwg)	1.2 MB

4 Operations and Maintenance Manual Templates

Operations and Maintenance Manual Templates
Instructions for Preparing a Stormwater Facility O&M Manual (PDF)	21 k
Stormwater Facility O&M Manual (Word)	195 k
Appendix A
Appendix A SEMSWA Maintenance Agreement Template (Word)	50 k
Appendix B
Appendix B Description of Facilities (Word)	27 k
Appendix C
EDB SOP (Word)	280 k
GB-GS SOP (Word)	269 k
PLD SOP (Word)	261 k
SFB SOP (Word)	253 k
Appendix D
SEMSWA EDB Inspection form (Excel)	149 k
SEMSWA GBGS Inspection form (Excel)	148 k
SEMSWA PLD Inspection form (Excel)	148 k
SEMSWA SFB Inspection form (Excel)	148 k
Appendix E
SEMSWA EDB Maintenance form (Excel)	147 k
SEMSWA GBGS Maintenance form (Excel)	147 k
SEMSWA PLD Maintenance form (Excel)	147 k
SEMSWA SFB Maintenance form (Excel)	147 k
Appendix F
Appendix F Annual Inspection and Maintenance Reporting Form (Word)	138 k
Appendix G
Facilities Map checklist (Word)	30 k
EDB Checklist (Word)	35 k
PLD Checklist (Word)	32 k
Sand Filter Checklist (Word)	33 k
Swale Checklist (Word)	33 k
Sample Drawings
EDB PLAN (.dwg)	2.5 Mb
GS Details (.dwg)	2.3 Mb
PLD Plan Details (.dwg)	1.3 Mb
SFB det (.dwg)	1.6 MB
SFB PLAN (.dwg)	3.5 Mb
Commercial site plan facility map (.dwg)	867 k
Residential site plan facility map (zipped .dwg)	7.1 Mb
SEMSWA Title Block (.dwg)	1.2 MB

4 System Development Fees Task Force Documents

System Development Fees Task Force Documents
Final Response to Task Force Sub-Committee Comments (PDF)	39 k
TF 1 Presentations (PDF)	153 k
TF 2 Presentations (PDF)	554 k
TF 3 Presentations (PDF)	251 k
TF 4 Presentations (PDF)	698 k
Basin Groups 1 (PDF)	351 k
Basin Groups 2 (PDF)	424 k
Basin Groups 3 (PDF)	389 k
Basin Groups 4 (PDF)	436 k
Basin Groups 5 (PDF)	289 k

SEMSWA Budget

4 2008 Budget

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