Metropolitan Water Supply Investigation Report

• Project Type: General OWC
• Title: Metropolitan Water Supply Investigation Final Report
• Date: 1/1/1999
• Water Conservation - Doc Type: Final Report

Metropolitan Water Supply Investigation

Table of Contents

I
I
I
I
I
I
I
I
I

3.1.4.5. Denver Basin (Nontributary) Groundwater ...................................................27

3 ..1.4.6. Water Conservation........................................................ ............................... 27

3.1.5. Existing Conditions ...............:.............................................................................. 28
3.1.5.1. Denver Central Sub-Region........................................................................... 28
3.1.5.2. South Metro Sub-Region.... ........... ................................................................ 31
3.1.5.3. City of Aurora.... ........................................................ ....... ............ ................. 31
3.1.5.4. Northeast Metro Sub-Region........................................... ...................... ........ 32
3.1.5.5. Northwest Metro Sub-Region........................ ........................... ..................... 32
3.1.6. Future Conditions ......................................... ...... ......... .............. ..... ...................... 33
3.1.6.1. Denver Central Sub-Region..... .... ........... ......................... ..... .... ................ ..... 36
3.1.6.2. South Metro Sub-Region.. ...... ....................... ...................... .......................... 37

3.1.6.3. City of Aurora........... ........................ ........................... ............................. ..... 37

3.1.6.4. Northeast Metro Sub-Region...... ................................................................... 37
3.1.6.5. Northwest Metro Sub-Region........................................................................ 38

3 .2. Water Supply Opportunities........................................................................ ................. 38

3.2.1. Conjunctive Use........................................................................ ........................... 38

3.2.1.1. Background...................... ............... ............................................................... 38

3.2.1.2. Conceptual Description of Conjunctive Use ................................................. 40
3.2.1.3. Surface Water Availability............... .......... ......................... .......................... 41
3.2.1.4. Groundwater and Aquifer Availability.......................................................... 48
3.2.1.5. Analytical Approach........ .......................................... .................................... 53
3.2.1.6. Results of Conjunctive Use Investigations.................................................... 54
3.2.1.7. Issues and Concerns........ ................................ ...................... .............. ........... 59

3.2.2. Effluent Management........................................................................................... 67

3.2.2.1. Background............................................................................................ ........ 67

3.2.2.2. Conceptual Definitions... ..................................................................... .......... 68
3.2.2.3. Analytical Approach............................................................. ......................... 70
3.2.2.4. Results of Effluent Management Investigations............................................ 73

3.2.2.5. Issues and Concerns....................................................................................... 86

3.2.3. Interruptible Supply Arrangements with Agriculture........................................... 89

3.2.3.1. Background....................................... ............................................ ..... ............ 89

3.2.3.2. Conceptual Definitions.................................... ............... ............................... 89
3.2.3.3. Sources of Water Supplies...... ......................... .............................................. 94
3.2.3.4. Information Development.............................................................................. 94
3.2.3.5. Purchase/Leaseback Arrangements.. ..... .................. ......... ............................. 98
3.2.3.6. Conditions for Successful Arrangements ...................................................... 98
3.2.3.7. Specific Contract Tenns ............ ..... ................. ..... ..................... .................. 101
3.2.3.8. Other Contractual and Procedural Considerations .......,.............................. 102
3.2.3.9. Supply Source Considerations ....... ...... ........................ ........ ............... ......... 103
3.2.3.10. Economic Considerations....... ........ ............... ................... ....... .................... 103
3.2.3.11. South Platte River Basin Supply Potential.................................................. 105
3.2.3.12. Issues and Concerns.............................................................. ........................ 107

3.2.4. Systems Integration............................................................................................ 109

3.2.4.1. Conceptual Definitions.. .................................................. ................... ......... 109
3.2.4.2. Information Development.. ............................ ................ ................... ........... 110
3.2.4.3. Systems Integration Study Results .............................................................. 114

3.2.5. Chatfield Reservoir................... ..................... ........ ........... .................................. 121

"'~I~"n" Water Conservation Board, Colorado Department of Natural Resources by
~ ,.,...._ ~w. . ,.. o. _^"'..... ... i""'Ii"'l. ....^............