ATTACHMENT A - WATER TREATMENT FACILITIES 2015 MASTER PLAN(RS).pdf

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F i na l Repo r t

Water Treatment Facilities 2015 Master Plan

Prepared for Fort Collins Utilities

February 2016

200 East 7th Street Suite 314

Loveland, CO 80537

ATTACHMENT A

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Contents Section Page

Acronyms and Abbreviations ......................................................................................................... xi

Facility Names .............................................................................................................................. xv

Acknowledgements .................................................................................................................... xvii

Executive Summary ................................................................................................................... ES‐1

1. Introduction ................................................................................................................... 1‐1

1.1 Purpose ...................................................................................................................... 1‐1

1.2 Project Scope ............................................................................................................. 1‐1

1.3 Report Organization .................................................................................................. 1‐2

1.4 Cooperative Master Planning Process....................................................................... 1‐2

2. Resources and Demand Production ................................................................................ 2‐1

2.1 Policy and Treatment Goals ...................................................................................... 2‐1

2.1.1 City of Fort Collins Policies ........................................................................... 2‐1

2.1.2 Partnership for Safe Water .......................................................................... 2‐4

2.1.3 Treatment Goals ........................................................................................... 2‐7

2.2 Production ................................................................................................................. 2‐8

2.3 Service Area Demands ............................................................................................. 2‐12

2.4 Raw Water Supply ................................................................................................... 2‐16

2.4.1 Existing Water Supply ................................................................................. 2‐17

2.4.2 Poudre River Water Resources .................................................................. 2‐19

2.4.3 Horsetooth Reservoir Water Resources ..................................................... 2‐21

2.5 Water Quality and Watershed Management .......................................................... 2‐23

2.5.1 Source Water Assessment and Protection ................................................. 2‐23

2.5.2 Historic Water Quality ................................................................................ 2‐26

2.5.3 Watershed Risk Factors .............................................................................. 2‐30

2.6 Future Water Supply Planning ................................................................................ 2‐35

2.6.1 Water Rights ............................................................................................... 2‐35

2.6.2 Historical and Future Water Demands and Supply .................................... 2‐35

2.6.3 Impact of Water Supply Planning on the WTF ........................................... 2‐36

2.6.4 Current Water Supply Storage Projects and Alternatives Summary .......... 2‐36

3. Existing Facilities and Condition Assessment .................................................................. 3‐1

3.1 Introduction ............................................................................................................... 3‐1

3.2 Source of Supply ........................................................................................................ 3‐1

3.3 Raw Water Intake Facilities ....................................................................................... 3‐2

3.3.1 Poudre River Intake and Pipelines ............................................................... 3‐2

3.3.2 Pleasant Valley Presedimentation Basin and Pipeline ................................. 3‐3

3.3.3 Horsetooth Reservoir Intake and Pipeline ................................................... 3‐3

3.3.4 Condition Assessment .................................................................................. 3‐3

3.4 Water Treatment Facilities ........................................................................................ 3‐3

3.4.1 History .......................................................................................................... 3‐3

CONTENTS

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3.4.2 General Description and Flow Schematic .................................................... 3‐4

3.4.3 Pressure Dissipation and Flow Blend Facility ............................................. 3‐13

3.4.4 Rapid Mixing .............................................................................................. 3‐14

3.4.5 Flocculation and Sedimentation ................................................................ 3‐15

3.4.6 Filtration ..................................................................................................... 3‐16

3.4.7 Disinfection ................................................................................................ 3‐17

3.4.8 Finished Water Storage ............................................................................. 3‐19

3.4.9 Chemical Feed Systems .............................................................................. 3‐20

3.4.10 Solids Processing ........................................................................................ 3‐25

3.4.11 Facility Capacity and Hydraulics ................................................................. 3‐29

3.4.12 High Service Pump Station ......................................................................... 3‐33

3.4.13 Backwash Pump Station ............................................................................. 3‐33

3.4.14 Goat Hill and Foothills Tanks ..................................................................... 3‐34

3.4.15 Southwest Pump Station ........................................................................... 3‐34

3.4.16 Site Facilities .............................................................................................. 3‐34

3.4.17 Finished Water Metering ........................................................................... 3‐35

3.4.18 Chlorine Contact Basin ............................................................................... 3‐36

3.5 Water Quality Laboratory ....................................................................................... 3‐37

3.6 Distribution and Storage ......................................................................................... 3‐38

3.7 Electrical System Summary ..................................................................................... 3‐41

3.8 Summary of Condition Assessment ........................................................................ 3‐41

4. Electrical System ............................................................................................................. 4‐1

4.1 Assessment of Risk and Fault Tree Analysis.............................................................. 4‐1

4.1.1 Failure Calculations using Fault Tree Diagrams ........................................... 4‐2

4.1.2 Assumptions of the Failure Calculations ...................................................... 4‐3

4.1.3 Fault Tree Diagrams ..................................................................................... 4‐5

4.1.4 Analysis ...................................................................................................... 4‐11

4.1.5 Conclusions ................................................................................................ 4‐12

4.1.6 Failure Data for Components of the Fault Trees ....................................... 4‐13

4.2 Equipment List and Load Study for WTF ................................................................. 4‐14

4.2.1 Equipment List Report ............................................................................... 4‐15

4.2.2 Load Study Report ..................................................................................... 4‐15

4.3 Assessments of Electrical & Control Equipment ..................................................... 4‐16

4.3.1 Electrical Equipment .................................................................................. 4‐17

4.3.2 Instrumentation & Control Equipment ...................................................... 4‐20

4.3.3 Summary Table for Electrical Equipment .................................................. 4‐23

4.3.4 Summary Table for Control Equipment ..................................................... 4‐32

4.3.5 Summary of Recommendations for Capital Improvement Projects .......... 4‐34

4.4 Assessment of Electric Utility Reliability ................................................................. 4‐34

4.4.1 Reliability – Internal Evaluation Criteria .................................................... 4‐34

4.4.2 Reliability of the Water Treatment Facility ................................................ 4‐34

4.4.3 Reliability of the Southwest Pump Station ................................................ 4‐36

4.4.4 Reliability of the Poudre Intake/Presed Facility ........................................ 4‐36

4.4.5 Reliability – External Evaluation Criteria Metrics ...................................... 4‐36

4.4.6 Analysis & Recommendations ................................................................... 4‐38

4.4.7 Electric Utility Points of Contact ................................................................ 4‐39

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4.5 Assessment of Energy Usage ................................................................................... 4‐40

4.5.1 Utility Data: Energy Use In 2014 ................................................................ 4‐40

4.1.1 Process and Building Load Data: Leverage Metering ................................ 4‐44

4.5.2 Existing Energy Management System (EMS) .............................................. 4‐45

4.5.3 Digital Bus – Smart Motor Control Centers ................................................ 4‐49

4.5.4 Summary of Recommendations ................................................................. 4‐50

4.5.5 Utility Data History: Energy Use 2011‐2014 ............................................... 4‐51

4.5.6 Demand‐Side Management: Incentives from Xcel Energy ......................... 4‐53

4.5.7 Cost‐Benefit Analysis: Expanding the PV Generation System .................... 4‐54

4.5.8 Hydro‐Electric Generation Project ............................................................. 4‐54

4.6 Assessment of Electric Generation Reliability ......................................................... 4‐54

4.6.1 Recent Changes in On‐Site Standby Generators ........................................ 4‐54

4.6.2 Fuel Source Reliability ................................................................................ 4‐56

4.6.3 Emergency Fuel Source Contacts ............................................................... 4‐57

4.6.4 Recommendations ..................................................................................... 4‐57

4.7 Generator Load Shedding ........................................................................................ 4‐58

4.7.1 Generator Updates ..................................................................................... 4‐58

4.7.2 Generator Load Shedding Tables ............................................................... 4‐58

4.7.3 Recommendations ..................................................................................... 4‐62

4.8 Electrical System and Arc Flash Studies .................................................................. 4‐63

4.8.1 Water Treatment Facility – Updated Arc Flash Results ............................. 4‐63

4.8.2 Poudre Intake/Presed Facility – Arc Flash Results ..................................... 4‐68

4.8.3 Southwest Pump Station ‐ Arc Flash Results .............................................. 4‐70

4.8.4 Update to Electrical Safety Program .......................................................... 4‐71

4.8.5 Recommendations ..................................................................................... 4‐71

5. Regulatory Assessment................................................................................................... 5‐1

5.1 Colorado Department of Public Health and Environment Water Quality

Requirements ............................................................................................................ 5‐1

5.1.1 Surface Water Treatment Rule .................................................................... 5‐2

5.1.2 Enhanced Surface Water Treatment Rule .................................................... 5‐5

5.1.3 Disinfectants and Disinfection Byproduct Rule .......................................... 5‐12

5.1.4 Distribution System Chlorine Residual ...................................................... 5‐23

5.1.5 Total Coliform Rule and Revised Total Coliform Rule ................................ 5‐24

5.1.6 Drinking Water Contaminant Candidate List ............................................. 5‐26

5.1.7 Unregulated Contaminant Monitoring Rule .............................................. 5‐32

5.1.8 Filter Backwash Recycling Rule .................................................................. 5‐33

5.1.9 Radionuclides Rule ..................................................................................... 5‐33

5.1.10 Arsenic Rule ................................................................................................ 5‐34

5.1.11 Radon Rule ................................................................................................. 5‐35

5.1.12 Lead and Copper Rule ................................................................................ 5‐35

5.1.13 Volatile Organic, Synthetic Organic and Inorganic Rules ........................... 5‐37

5.1.14 Fluoride ...................................................................................................... 5‐39

5.1.15 Storage Tank Rule ....................................................................................... 5‐39

5.1.16 Future Regulatory Issues ............................................................................ 5‐39

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5.2 Solids and Hazardous Waste Division ..................................................................... 5‐44

5.2.1 Governing Bodies ....................................................................................... 5‐44

5.2.2 Water Treatment Plant Residuals (Waste Impoundments) ...................... 5‐46

5.2.3 Future Solids Regulatory Issues ................................................................. 5‐48

5.3 Regulatory Summary .............................................................................................. 5‐49

5.3.1 Drinking Water Summary .......................................................................... 5‐49

5.3.2 Solid Waste Summary ................................................................................ 5‐49

6. Other Considerations ...................................................................................................... 6‐1

6.1 Environmental ........................................................................................................... 6‐1

6.1.1 Risk Management Plan ................................................................................ 6‐1

6.1.2 Air Permitting ............................................................................................... 6‐5

6.1.3 Lead‐Based Paint ......................................................................................... 6‐7

6.1.4 Asbestos ....................................................................................................... 6‐8

6.1.5 Spill Prevention, Control, and Countermeasure Plan .................................. 6‐8

6.2 Security ..................................................................................................................... 6‐8

6.2.1 Vulnerability Assessments ........................................................................... 6‐8

6.2.2 Inherently Safer Technology (Disinfection) ................................................. 6‐9

6.3 Energy Recovery ..................................................................................................... 6‐11

6.3.1 Hydropower ............................................................................................... 6‐11

6.3.2 Solar ........................................................................................................... 6‐12

6.4 Sustainability ........................................................................................................... 6‐12

6.5 Distribution System Water Quality Monitoring ...................................................... 6‐13

6.6 Environmental Management System ..................................................................... 6‐14

7. Recommended Plan and Improvements ......................................................................... 7‐1

7.1 Sustainable Approach ............................................................................................... 7‐1

7.1.1 Asset Management ...................................................................................... 7‐2

7.1.2 Triple Bottom Line Considerations .............................................................. 7‐2

7.2 Capital Improvement Plan ........................................................................................ 7‐2

7.2.1 Treatment Process Challenges ..................................................................... 7‐3

7.2.2 Condition Assessment ............................................................................... 7‐10

7.3 CIP Summary ........................................................................................................... 7‐26

References ................................................................................................................................... xix

Appendixes

A 2014 Drinking Water Quality Policy Annual Report B Fort Collins Water Supply and Demand Management Policy Revision Report C Partnership for Safe Water – Annual Report Narrative D Cyanotoxin Monitoring Protocol for the City of Fort Collins Water Treatment Facility E Condition Assessment Logs F Optimization of the Extended Terminal Subfluidization Wash (ETSW) Filter

Backwashing Procedure G Fort Collins Water Treatment Facility 2015 Master Plan ‐‐ Large Capital Projects H Fort Collins Water Treatment Facility 2015 Master Plan – Annual Minor Projects

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Exhibits

ES‐1 Fort Collins WTF Treated Water Goals for Key Water Quality Parameters ES‐2 Population Projections for the Fort Collins’ Service Area, Including Colorado State University and West Fort Collins Water District ES‐3 Water Service Providers Area Map ES‐4 Average and Peak Demand Based on Per Capita Demands ES‐5 Fort Collins Water Treatment Facility Process Flow Schematic ES‐6 Fort Collins WTF Condition Assessment Summary of Recommended Improvements ES‐7 Master Plan Large Capital Project Summary (Cost in $1,000s) ES‐8 Master Plan Large Capital Project Locations ES‐9 Master Plan Annual Minor Capital Project Summary 2‐1 Phase IV Partnership for Safe Water Process Flowchart ........................................................ 2‐6 2‐2 Fort Collins WTF Treated Water Goals for Key Water Quality Parameters ........................... 2‐8 2‐3 Fort Collins Water Treatment Facility Historical Peak Daily Use .......................................... 2‐10 2‐4 Fort Collins Water Treatment Facility Historical Average Daily Use .................................... 2‐11 2‐5 Water Service Providers Area Map ...................................................................................... 2‐13 2‐6 Population Projections for the Fort Collins Utilities Service Area, Including CSU and WFCWD .................................................................................................. 2‐14 2‐7 Fort Collins Utilities Service Area Average and Peak Demands

Based on per Capita Demands (Tabular Representation) .................................................... 2‐15 2‐8 Fort Collins Utilities Service Area Average and Peak Demands

Based on per Capita Demands (Graphical Representation) ................................................. 2‐15 2‐9 Fort Collins Utilities Water Use Historic and Projected Demands ....................................... 2‐16 2‐10 City of Fort Collins Raw Water Supply System ..................................................................... 2‐17 2‐11 Historical Average Yield ........................................................................................................ 2‐18 2‐12 Poudre River Flow Variations (at the mouth of the Poudre Canyon Gage) ......................... 2‐19 2‐13 Horsetooth Reservoir Raw Water Quality (January 1998 to September 2009)* ................. 2‐27 2‐14 Poudre River Raw Water Quality (January 1998 to September 2009)* ............................... 2‐27 2‐15 Fort Collins Utilities Raw Water Supply Requirements ........................................................ 2‐35 3‐1 Water Treatment Facility Layout ............................................................................................ 3‐7 3‐2 Fort Collins Water Treatment Facility Process Flow Schematic ............................................. 3‐9 3‐3 Selected Process Design Criteria .......................................................................................... 3‐11 3‐4 Water Treatment Facility Treatment Train Process Design Criteria .................................... 3‐11 3‐5 Chemical Feed Systems ........................................................................................................ 3‐21 3‐6 Typical Solids Drying Lagoon in Routine Operation ............................................................. 3‐26 3‐7 Typical Solids Drying Lagoon near End of Operation ........................................................... 3‐27 3‐8 Typical Solids Drying Lagoon during Infiltration and Evaporation ...................................... 3‐27 3‐9 Typical Solids Drying Lagoon while being Turned ................................................................ 3‐27 3‐10 Key Design and Operating Criteria of Finished Water Reservoirs ........................................ 3‐29 3‐11 Water Treatment Facility Hydraulic Profile 3‐12 Finished Water Pipeline ....................................................................................................... 3‐36 3‐13 CCB Design Criteria – Summer Season (Controlling Season) ............................................... 3‐37 3‐14 Fort Collins Utilities Water Distribution System Map 3‐15 Existing Facility Modifications Timeline ............................................................................... 3‐42 3‐16 Fort Collins WTF Condition Assessment Summary of Recommended Improvements ........ 3‐43 4‐1 Events Linked via “OR” Gates ................................................................................................. 4‐1 4‐2 Events Linked via “AND” Gates .............................................................................................. 4‐1

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4‐3 Fault Tree Diagram of WTF Utility Service ............................................................................. 4‐2 4‐4 Bell Curve Distribution of Failures ......................................................................................... 4‐4 4‐5 Fault Tree Diagram of the Main Plant (150) .......................................................................... 4‐6 4‐6 Fault Tree Diagram of the T5/T6 Process (110) ..................................................................... 4‐7 4‐7 Fault Tree Diagram of the Backwash Pump Station (170) ..................................................... 4‐8 4‐8 Fault Tree Diagram of the High Service Pump Station (190) ................................................. 4‐9 4‐9 Fault Tree Analysis of the Water Quality Lab (130) ............................................................. 4‐10 4‐10 Fault Tree Diagram of the Intake/Presed Facility ................................................................ 4‐10 4‐11 Fault Tree Diagram of the Southwest Pump Station ........................................................... 4‐11 4‐12 Fault Tree Analysis Failure Rates and Mean Time to Repair ............................................... 4‐13 4‐13 MCC155 in the Air Scour Blower Room ............................................................................... 4‐17 4‐14 Example of Damaged Lightning Conductor ........................................................................ 4‐18 4‐15 Example of Equipment that Requires Lightning Protection ................................................ 4‐18 4‐16 MCC154 ................................................................................................................................ 4‐19 4‐17 MCC191 ................................................................................................................................ 4‐19 4‐18 Existing LVT_191LP2 ............................................................................................................ 4‐20 4‐19 Existing UniOP Filter Control Console .................................................................................. 4‐21 4‐20 Existing Magnetic Flow Meters installed on Pleasant Valley Pipeline ................................ 4‐22 4‐21 Existing Ultrasonic Flow Meters Installed in Vault .............................................................. 4‐22 4‐22 Condition Assessment Table of All Major Electrical Equipment .......................................... 4‐23 4‐23 Summary Table of All PLCs for Drinking Water Facilities ..................................................... 4‐32 4‐24 Xcel Energy Distribution Feeder Network at LaPorte Water Treatment Facility ................. 4‐35 4‐25 Reliability Indices Tracked and Published Annually by Xcel Energy .................................... 4‐37 4‐26 Comparison of Reliability Data on WTF Feeders to Xcel Energy

System‐wide Performance ................................................................................................... 4‐37 4‐27 Comparison of WTF Outage Data from Periods 1999‐2006 and 2011‐2014 ....................... 4‐38 4‐28 Summaries of Total Energy Consumption at the WTF in 2014 ............................................ 4‐41 4‐29 Comparison of Utility Cost to Flow Totals, by Month, in 2014 ............................................ 4‐41 4‐30 Comparison of Utility Cost to Flow Totals, by Month, in 2014 ............................................ 4‐42 4‐31 Comparison of Electricity Consumption to Electricity Cost, by Month, in 2014 .................. 4‐43 4‐32 Annual Electric Utilization Compared to Volume of Water Treated ................................... 4‐43 4‐33 Comparison of Electricity Intensity to Totalized Flow, by Month, in 2014 .......................... 4‐44 4‐34 Area 100 Power Distribution Summary Screen Shot ........................................................... 4‐45 4‐35 Area 100 Power Metering Summary Screen Shot .............................................................. 4‐45 4‐36 Area 110 Power Metering Summary Screen Shot ............................................................... 4‐46 4‐37 Area 130 Power Metering Summary Screen Shot ............................................................... 4‐46 4‐38 Area 150 Power Metering Summary Screen Shot ............................................................... 4‐46 4‐39 Area 170 Power Metering Summary Screen Shot ............................................................... 4‐47 4‐40 Area 190 Power Metering Summary Screen Shot ............................................................... 4‐47 4‐41 Area J1194 Power Metering Summary Screen Shot ............................................................ 4‐48 4‐42 Plant Power Meter Trending Screen .................................................................................... 4‐48 4‐43 Recommended EMS Power Metering Data Requirements ................................................. 4‐50 4‐44 Electric Use vs. Treated Water, 2011‐2014 ......................................................................... 4‐51 4‐45 Electric Use vs. Electric Cost, 2011‐2014 ............................................................................. 4‐51 4‐46 Natural Gas Use vs. Natural Gas Cost, 2011‐2014 ............................................................... 4‐52 4‐47 Utility Costs vs. Water Treated, for All Utilities, 2011‐2014 ................................................ 4‐52 4‐48 Summary of Generator Fleet across the Drinking Water Facilities ..................................... 4‐55 4‐49 Main Generator (EGU151) Load Shedding .......................................................................... 4‐59

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4‐50 Backwash Pump Station Generator (EGU171) Load Shedding ............................................. 4‐61 4‐51 High Service Pump Station Generator (EGU191) Load Shedding ......................................... 4‐61 4‐52 Intake/Presed Generator (EGU101) Load Shedding ............................................................. 4‐61 4‐53 Arc Flash Results ................................................................................................................... 4‐64 4‐54 Intake/Presed Facility Arc Flash Results ............................................................................... 4‐68 4‐55 Southwest Pump Station Arc Flash Results .......................................................................... 4‐70 5‐1 Summary of Surface Water Treatment Rule Monitoring Requirements ............................... 5‐2 5‐2 Minimum Reservoir Water Level for CT Compliance at Various Flow Rates ......................... 5‐3 5‐3 Microscopic Particulate Analysis Results (January 2006 through January 2015) .................. 5‐4 5‐4 Summary of Annual Combined Filter Effluent Turbidities ..................................................... 5‐6 5‐5 Bin Classification and Additional Log Treatment Required

Based on Source Water Monitoring ....................................................................................... 5‐9 5‐6 Microbial Toolbox: Options, Log Credits, and Design and Implementation Criteria ........... 5‐10 5‐7 Fort Collins Cryptosporidium Bin Calculation and Flow Weighted Averages for Combined Poudre River/ Horsetooth Reservoir and Arithmetic Means for Individual Sources ........................................................................................................... 5‐11

5‐8 Stage 1/Stage 2(1) Disinfection Byproduct Rule Limits ......................................................... 5‐13 5‐9 Required Total Organic Carbon Removal Efficiencies through Enhanced Coagulation ....... 5‐14 5‐10 Historical Total Organic Carbon and Running Annual Average for Alternative Compliance Criteria...................................................................................... 5‐16 5‐11 Historical Total Organic Carbon Removal Performance Ratios ............................................ 5‐16 5‐12 Stage 2 Disinfection Byproduct Monitoring Locations Determined from the Initial Distribution System Evaluation .................................................................. 5‐19 5‐13 Fort Collins Utilities Haloacetic Acid 5 Locational Running Annual Average Values ............ 5‐20 5‐14 Total Trihalomethanes Locational Running Annual Average Values ................................... 5‐21 5‐15 Blended Source Water TOC (Jan 2009‐Sept 2013) ............................................................... 5‐22 5‐16 E. coli MCL Violation Occurs with the Following Sample Result Combination ..................... 5‐24 5‐17 Total Coliform Sampling Requirements ............................................................................... 5‐25 5‐18 Draft Contaminant Candidate List 4 ..................................................................................... 5‐27 5‐19 UCMR 3 Results June – December 2013 .............................................................................. 5‐32 5‐20 Existing and Revised Maximum Contaminant Levels for Radionuclides .............................. 5‐34 5‐21 Customer Tap Lead and Copper 90th Percentile Values ...................................................... 5‐37 5‐22 Chemical Contaminants Regulated by the Chemical Phase Rules ....................................... 5‐38 5‐23 Criteria for Municipal Solid Waste Landfills at Point of Compliance.................................... 5‐45 5‐24 Summary Impoundments ..................................................................................................... 5‐47 5‐25 Summary of Type A Waste Impoundment Requirements ................................................... 5‐47 6‐1 Worst‐Case Scenario for One‐Ton Chlorine Container Release ............................................. 6‐2 6‐2 Risk Management Plan Requirement Summary .................................................................... 6‐5 7‐1 Pine Beetle Infestation Extent ................................................................................................ 7‐4 7‐2 TOC Concentrations (mg/L) at C10 (Trend Slope Shown As Red Dotted Line) ....................... 7‐4 7‐3 Upper Plan View of Flow Blending Facility ............................................................................. 7‐6 7‐4 Theoretical Detention Times at the Flow Blending Facility .................................................... 7‐6 7‐5 Plan View of Flow Blending Facility Pipe Gallery .................................................................... 7‐7 7‐6 Granular Activated Carbon Adsorption in Existing Filters Design Criteria ............................. 7‐8 7‐7 Proposed Interconnection Provision between the HRP and PVP Systems .......................... 7‐14 7‐8 Additional Post‐Treatment Carbon Dioxide Storage ............................................................ 7‐16 7‐9 Horsetooth Reservoir Second Outlet Site Location .............................................................. 7‐20 7‐10 Finished Water Storage Summary ........................................................................................ 7‐22

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7‐11 Summary of Contingency Percentages ................................................................................ 7‐27 7‐12 Master Plan Large Capital Project Summary (Cost in $1,000s) ........................................... 7‐29 7‐13 Master Plan Large Capital Project Locations ....................................................................... 7‐41 7‐14 Master Plan Annual Minor Capital Project Summary .......................................................... 7‐43

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Acronyms and Abbreviations g Microgram °C Degrees Centigrade 2009 Master Plan Water Treatment Facilities 2009 Master Plan 2015 Master Plan Water Treatment Facilities 2015 Master Plan AF Acre‐feet AM Arithmetic mean APCD Air Pollution Control Division APDS Alternative Product Delivery System ATO Automatic throwover switch ATS Automatic transfer switch AWWA American Water Works Association BAC Biological activated carbon BAT Best available technology BFO Budget for outcomes BTEX Benzene, toluene, ethylbenzene, and xylenes BWW Backwash wastewater CAP Climate Action Plan CAQCC Colorado Air Quality Control Commission CBT Colorado‐Big Thompson CCB Chlorine contact basin CCL Contaminant Candidate List CCS Consumer complaint surveillance CDPHE Colorado Department of Health and Environment CFATS Chemical Facility Anti‐Terrorism Standards CFE Combined filter effluent cfs Cubic feet per second CIP Capital Improvement Plan City City of Fort Collins CLP Cache la Poudre River CMMS Computerized maintenance management system CMU Concrete masonry unit CPDWR Colorado Primary Drinking Water Regulations CSU Colorado State University CT Contact time CU University of Colorado at Boulder DBP Disinfection byproduct DBPR Disinfection By‐Product Rule DEET N,N‐diethyl‐meta‐toluamide DI Ductile iron DIP Ductile iron pipe DO Dissolved oxygen Dth Decatherm EI&C Electrical, instrumentation, and control ELCO East Larimer County Water District EMS Environmental management system

ACRONYMS AND ABBREVIATIONS

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EPA U.S. Environmental Protection Agency ERP Emergency response plan ES Effective size ESP Electrical Safety Program ESWTR Enhanced Surface Water Treatment Rule ETSW Extended Terminal Subfluidization Wash FCLWD Fort Collins‐Loveland Water District FERC Federal Regulatory Energy Commission FRP Fiberglas reinforced plastic ft feet FTW Filter to waste FWR Finished Water Reservoir GAC Granular activated carbon gal Gallon Giardia Giardia lamblia GIS Geographic information system GPCD Gallons per capita‐day gpm Gallons per minute HAA5 Haloacetic acid 5 HMI Human‐machine interface HMWMD Hazardous Materials and Waste Management Division hp Horsepower HSPS High Service Pump Station HWP House Water Pumps HVAC Heating, ventilation, air conditioning IDSE Initial Distribution System Evaluation IEEE Institute of Electrical and Electronics Engineers IESWTR Interim Enhanced Surface Water Treatment Rule IFE Individual filter effluent in Inch ISO International Organization for Standardization IST Inherently Safer Technologies kW kilowatt kVA kiloVolt amperes lb Pound LRAA Locational running annual average LT1ESWTR Long‐Term 1 Enhanced Surface Water Treatment Rule LT2ESWTR Long‐Term 2 Enhanced Surface Water Treatment Rule MCC Motor control center MCL Maximum contaminant level MCLG Maximum contaminant level goal MDD Maximum day demand MG Million gallons mg/L Milligrams per liter MGD Million gallons per day mm Millimeter MPA Microscopic particulate analysis MRAA Maximum running annual average

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MRDL Maximum residual disinfectant level MTTR Mean time to repair NEC National Electrical Code NFPA National Fire Protection Association ng/L Nanograms per liter NISP Northern Integrated Supply Project NPDES National Pollutant Discharge Elimination System NPIC North Poudre Irrigation Company NTU Nephelometric turbidity unit O&M Operations and maintenance OEL Operational evaluation level OWQM Online water quality monitoring PAC Powdered activated carbon PDV Pressure Dissipation Vault PLC Programmable logic controller ppd Pounds per day ppt Parts per trillion PS Pump station PSM Process Safety Management PTO Power takeoff PVP Pleasant Valley Pipeline RAA Running annual average RCP Reinforced concrete pipe REA Rural Electrical Association RMP Risk Management Plan RTCR Revised Total Coliform Rule RVSS Reduced voltage solid state RWR Raw Water Requirement SCADA Supervisory control and data acquisition SDWA Safe Drinking Water Act sec second sf Square foot SOS Source of Supply SPCC Spill Prevention Control and Countermeasure SSB Service switchboard SSS System‐specific study SWTR Surface Water Treatment Rule T&O Taste and odor TC Total coliform TCR Total coliform rule TENORM Technologically Enhanced Naturally Occurring Radioactive Materials TM Technical memorandum TOC Total organic carbon TTHM Total trihalomethane UC Uniformity Coefficient UCLA University of California, Los Angeles UPS Uninterruptible power supply UQ Unimportant quantities

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Utilities Fort Collins Utilities UV Ultraviolet VFD Variable frequency drive WFCWD West Fort Collins Water District WQL Water Quality Laboratory WRF Water Research Foundation WTF Water Treatment Facility

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Facility Names Administration Building

Backwash Supply Pump Station

Backwash Wastewater Pond

Carbon Dioxide Storage (Post‐treatment)

Carbon Dioxide Storage (Pre‐treatment)

Chemical Storage and Feed Facility

Clearwell

Decant Pond

Decant Return Pump Station

Dechlorination Building

Filter Building

Finished Water Reservoir

Flow Blending Facility

Foothills Tank

Goat Hill Tank

High Service Pump Station

Horsetooth Reservoir Pressure Dissipator Vault

Pleasant Valley Pipeline Presedimentation Basin

Poudre Intake Presedimentation Basin

Poudre Raw Water Pipelines

Poudre River Intake

Poudre River Pressure Dissipator Vault

Rapid Drain Pond

Sewage Lift Station

Solids Drying Lagoon

Source of Supply Building

Southwest Pump Station

Spill Containment Vault

Stormwater Detention Basin

T1 Clarifier

T2 Clarifier

T3 Facility

T3/T4 Headworks

T4 Facility

T5 Facility

T5/T6 Complex

T5/T6 Facility

T6 Facility

Water Quality Laboratory

Water Treatment Facility (WTF)

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Acknowledgements The project team has worked collaboratively to develop this Master Plan to identify the future planning needs and summarize existing challenges and operations data to meet the project objectives.

City of Fort Collins

Sue Paquette and Dean Saye – Project Managers

Owen Randall – Chief Engineer

Mark Kempton – Water Production Manager

Jill Oropeza – Watershed Supervisor

Ken Morrison – Water Treatment Facility Superintendent

Gregg Stonecipher – Technical Services Supervisor

Scott Foreman – Maintenance

Ross Lamb and Cory Stringer – Source of Supply

CH2M

Kevin Heffernan – Project Manager

Albert Paquet – Assistant Project Manager

Lisa Voytko – Senior Consultant

Brad Schutt – Project Engineer

Holly Werth – Project Engineer

Carollo Engineers

Monte Richard – Electrical Engineer

Chris Heger – Electrical Engineer

Brian Ream – Electrical

Hydro Construction Company

Jim Eurich – Project Manager

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Executive Summary This Executive Summary highlights the key findings and recommendations resulting from the Fort Collins Utilities Water Treatment Facilities 2015 Master Plan (2015 Master Plan). The 2015 Master Plan was prepared to provide guidance for future regulatory compliance, support capital planning necessary to maintain the condition of the current facilities, and maintain the level of service desired by Fort Collins Utilities. The planning period for this Master Plan covers the Fort Collins Utilities water service area through the 2050 planning horizon. The following specific objectives are addressed in the 2015 Master Plan:

Provide facilities to meet existing and future water treatment needs.

Ensure that the quality of the treated water delivered to customers consistently meets or surpasses current and anticipated future regulatory requirements.

Ensure that the quality of treated water meets customer expectations consistent with drinking water policy.

Provide operating flexibility to meet reasonably anticipated fluctuations in raw water quality and treated water use.

Provide sufficient redundancy, standby facilities, and emergency procedures to ensure treated water supply reliability.

Optimize facility operations to supply high‐quality water at the lowest achievable cost.

The 2015 Master Plan includes the review and assessment of the following components of the water treatment, supply, and distribution facilities:

Poudre River Intake

Poudre Intake Presedimentation Basin

Pleasant Valley Pipeline Presedimentation Basin

Poudre Raw Water Pipelines

Water Treatment Facility (WTF)

Southwest Pump Station

Foothills Tank

Goat Hill Tank

Significant changes from the 2009 Master Plan (submitted final in 2010) that have been addressed in the current Master Plan include:

Revised service area and population estimates

Reduction in per capita water use consumption and resulting peak and average day demand forecast

2012 update to the City’s Water Supply and Demand Management Policy

Revised raw water supply portfolio and water storage planning projects

Inclusion of a wholesale water capacity agreement with Fort Collins‐Loveland Water District

Completion of new capital improvement projects

Each section of the 2015 Master Plan is summarized herein.

EXECUTIVE SUMMARY

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Section 1: Introduction Fort Collins Utilities currently serves a population of 132,000, which is 5,000 less than the quantity used in the 2009 Master Plan for planning purposes. As a result, current peak day demand has also been reduced from 51 MGD in 2009 to 48 MGD in 2015 (CH2M HILL 2010).

Section 2: Resources and Demand Production Guiding Policies The City of Fort Collins has adopted drinking water quality and raw water policies through a Council Resolution that formalizes the City’s commitment to effectively delivering services vital to the health and wellbeing of the community. The Drinking Water Quality Policy (provided as Appendix A) states the City will 1) meet or exceed customer expectations for quality, quantity, and reliability; 2) consider water quality in development of all codes, policies, and project development; and 3) design, construct, and operate City facilities to provide safe, reliable, and cost‐effective service to the City’s residents. The goal of the policy is to 1) provide an adequate and reliable water supply and

2) manage the demand while making efficient use of the resource.

Fort Collins Utilities adopted a Water Supply and Demand Management Policy in 2012 that provides guidance to the City when addressing water resource planning issues, such as demand management, drought criteria, supply portfolio and quantity, regional cooperation, environmental considerations, and recreational opportunities. In 2014 the City completed the Water Supply and Demand Management Policy Revision Report that supports the 2012 policy and provides additional information on water demand projections and planning criteria.

This Master Plan complies with these critical City policies.

Fort Collins Utilities participates in the Partnership for Safe Water, a voluntary program developed by the U.S.