Park City and Snyderville Basin Water Supply Study Special Report

Contents

Executive Summary.......................................................................................................ES-1 

Standard Acronyms and Abbreviations...........................................................................A-5 

Definitions........................................................................................................................A-9 

Chapter 1 – Introduction...............................................................................................1-1 

1.1 Background................................................................................................................1-1 

1.2 General Description of Study Area............................................................................1-3 

Chapter 2 – Existing Conditions, Water Supplies and Infrastructure .....................2-1 

2.1 Background................................................................................................................2-1 

2.2 Summit County Concurrency Requirements.............................................................2-1 

2.3 Existing Water Systems and Source Descriptions.....................................................2-2 

2.4 Existing Water Supply ...............................................................................................2-9 

 

Chapter 3 – Current Water Demands .........................................................................3-1 

3.1 Introduction................................................................................................................3-1 

3.2 Data Collection & Methodology................................................................................3-1 

3.3 M&I Water Use Classifications.................................................................................3-1 

3.4 M&I Water Use Data ................................................................................................3-3 

Chapter 4 – Future Supply & Demand and Projected Needs....................................4-1 

4.1 Introduction................................................................................................................4-1 

4.2 Population Projections...............................................................................................4-1 

4.3 Projected M&I Demands ...........................................................................................4-3 

4.4 Projected Reliable Supplies.......................................................................................4-7 

4.5 Projected Future Needs..............................................................................................4-10 

Chapter 5 – Future Development.................................................................................5-1 

5.1 Introduction................................................................................................................5-1 

5.2 Potential Future Development Options......................................................................5-1 

5.3 Additional In-Basin Surface Water Storage (Option 1) ............................................5-3 

5.4 Conjunctive Management of Surface and Groundwater (Option 2)..........................5-7 

5.5 Water Reuse (Option 3) .............................................................................................5-9 

5.6 Provo River - JSSD (Option 4)..................................................................................5-17 

5.7 East Canyon Pipeline (Option 5) ...............................................................................5-20 

5.8 Brown’s Canyon Pipeline (Option 6) ........................................................................5-26 

5.9 Lost Creek Canyon Pipeline (Option 7).....................................................................5-28 

5.10 Weber River via Weber-Provo Canal (Option 8) ....................................................5-32 

5.11 Lost Creek Canyon and Weber-Provo Canal (Option 9).........................................5-35 

5.12 Future Development Options Summary ..................................................................5-37 

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Park City and Snyderville Basin Water Supply Study Special Report

Chapter 6 –Evaluation and Preferred Plan.................................................................6-1 

6.1 Evaluation Criteria .....................................................................................................6-1

6.2 Option Evaluation ......................................................................................................6-1 

6.3 Selection of Preferred Plan ........................................................................................6-6 

6.4 Preferred Plan.............................................................................................................6-10 

References........................................................................................................................R-1 

Appendix A - Cost Estimates...........................................................................................A-1 

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Park City and Snyderville Basin Water Supply Study Special Report

List of Tables 

Table Page 

No. Title 

ES-1 2003 Annual Water Production Estimate ............................................................ES-2 

ES-2 Snyderville Basin Projected Future M&I Needs .................................................ES-3 

ES-3 Development Options Summary..........................................................................ES-4 

ES-4 Economic Conditions Evaluation Summary........................................................ES-5 

ES-5 Option Cost Estimate Summary by Method .......................................................ES-6 

ES-6 Preferred Plan – Development Option Priority and Needs..................................ES-7 

ES-7 Study Summary....................................................................................................ES-9 

2-1 Reported Concurrency Capacities........................................................................2-3 

2-2 2003 Annual Water Production Estimate Method One .......................................2-10 

2-3 2003 Annual Water Production Estimate Method Two.......................................2-11 

2-4 2003 Annual Water Production Estimate Method Three.....................................2-11 

3-1 2001 Potable Water Use for Public Community Water Systems ........................3-4 

3-2 2001 Secondary Water Use in Public Community Systems................................3-5 

3-3 2001 Water Use for Public Non-Community Water Systems, ............................3-5 

 Self-Supplied Industries and Private Domestic Systems 

3-4 2001 M&I Water Use Summary..........................................................................3-5 

4-1 Snyderville Basin Population Projections............................................................4-2 

4-2 Projected Future M&I Water Demands (Without Conservation)........................4-3 

4-3 Projected Future M&I Water Demands (With Conservation).............................4-3 

4-4 Adjusted M&I Demands......................................................................................4-7 

4-5 Projected M&I Needs ..........................................................................................4-10 

5-1 Current and Projected Discharges from SBRWD Facilities ...............................5-10 

5-2 East Canyon Pipeline Cost Summary ..................................................................5-21 

5-3 Summary of Water Rights Available for Importation (SWDC)..........................5-23 

5-4 Lost Creek Canyon Pipeline Cost Summary .......................................................5-29 

5-5 Summary of Water Rights Available for Importation (Lost Creek) ...................5-30 

5-6 Summary of Needs and Development Options....................................................5-37 

6-1 Economic Evaluation Summary ...........................................................................6-2 

6-2 Development Options Summary ..........................................................................6-7 

6-3 Option Cost Estimate Summary by Method.........................................................6-8 

6-4 Preferred Plan - Development Option Priority and Needs...................................6-10 

6-5 Study Summary ....................................................................................................6-13 

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Park City and Snyderville Basin Water Supply Study Special Report

List of Figures

Figure 

No. Title Page 

ES-1 Preferred Plan Implementation ............................................................................ES-8 

1-1 Vicinity Map ........................................................................................................1-4 

2-1 Present Distribution Areas...................................................................................2-5 

2-2 Snyderville Basin Safe Yield vs. Available.........................................................2-14 

3-1 Snyderville Basin Current M&I Use vs. Available Supply .................................3-6 

4-1 Projected M&I Water Demands...........................................................................4-2 

4-2 Comparison of Demands to Current Demand and Available Supply..................4-4 

5-1 Options Map.........................................................................................................5-2 

5-2 Option 1 – Additional In-Basin Surface Water Storage ......................................5-6 

5-3 Supply vs. Initial Reuse Demand.........................................................................5-11 

5-4 Probable Future Reuse Volume ...........................................................................5-14 

5-5 Option 3 – Water Reuse.......................................................................................5-16 

5-6 Option 4 - Provo River -JSSD .............................................................................5-19 

5-7 Option 5 - East Canyon Reservoir Pipeline .........................................................5-25 

5-8 Option 7 –Lost Creek Canyon Pipeline ...............................................................5-31 

5-9 Option 8 - Weber River via Weber-Provo Canal.................................................5-34 

5-10 Option 9 - Lost Creek Canyon and Weber-Provo Canal .....................................5-36 

6-1 Preferred Plan Implementation ............................................................................6-12 

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Park City and Snyderville Basin Water Supply Study Special Report

Standard Acronyms and Abbreviations

AF acre-feet 

ASCE American Society of Civil Engineers 

ASTM American Society for Testing and Materials 

BC&A Bowen, Collins & Associates

BOD Biochemical Oxygen Demand 

BOD5 five-day biochemical oxygen demand 

BMP Best Management Practices 

C degrees Celsius (or centigrade) 

CAD computer aided design 

cfm cubic feet per minute 

CFR Code of Federal Regulations 

cfs cubic feet per second 

cm/sec centimeters per second 

COE U.S. Army Corps of Engineers 

CWA Clean Water Act 

cu yd cubic yard 

dia diameter 

DO dissolved oxygen 

D&WCCC Davis and Weber Counties Canal Company 

EA Environmental Assessment 

EIS Environmental Impact Statement 

EPA Environmental Protection Agency 

ERC Equivalent Residential Connection 

ESA Endangered Species Act 

F degrees Fahrenheit 

FONSI Finding of No Significant Impact 

ft feet or foot 

ft2

 square feet 

ft/ft feet per foot 

ft/h feet per hour 

ft/min feet per minute 

ft/s feet per second 

FWS US Fish and Wildlife Service 

FY Fiscal Year 

g gram

GIS Geographical Information System

GOPB Governor’s Office of Planning and Budget 

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Park City and Snyderville Basin Water Supply Study Special Report

gpcd gallons per capita per day 

gpd gallons per day 

gpm gallons per minute 

gps gallons per second 

hp horsepower 

hvac heating, ventilation, and air conditioning 

JSSD Jordanelle Special Service District 

kg kilogram

kv kilovolt 

kva kilovolt-ampere 

kw kilowatt 

kwh kilowatt hour 

l liter 

lb pound 

LF lineal feet 

LS lump sum 

mg milligram

MG million gallons 

mgd million gallons per day 

mg/kg milligrams per kilogram

mg/l milligrams per liter 

M&I Municipal and Industrial 

MHZ megahertz 

MOU Memorandum of Understanding 

msl mean sea level 

MRWSSD Mountain Regional Water Special Service District 

MWH Montgomery Watson Harza 

NEPA National Environmental Policy Act 

NHPA National Historic Preservation Act 

NPDES National Pollutant Discharge Elimination System

OD outside diameter 

O&M operation and maintenance 

OM&R operation, maintenance and replacement 

OSHA Occupational Safety and Health Administration 

PE Professional Engineer or Project Engineer 

PIP Public Involvement Plan 

PM Project Manager 

POC point of contact 

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Park City and Snyderville Basin Water Supply Study Special Report

POTW publicly owned treatment works 

PPE personal protective equipment 

ppb parts per billion 

ppm parts per million 

PRWUA Provo River Water Users Association 

psf pounds per square foot 

psig pounds per square inch gauge 

pvc polyvinyl chloride 

QA Quality Assurance 

QC Quality Control 

Reclamation Bureau of Reclamation 

RFP Request for Proposal 

ROW Right-of-Way 

SBWRD Snyderville Basin Water Reclamation District 

SCSA3 Summit County Service Area No. 3 

SDWA Safe Drinking Water Act 

SDWS Safe Drinking Water Standard 

SHPO State Historic Preservation Office 

SOW Scope of Work 

STP Sewage Treatment Plant 

SWDC Summit Water Distribution Company 

tbc to be considered 

TMDL Total Maximum Daily Load 

μg/g micrograms per gram

μg/l micrograms per liter 

μg/kg micrograms per kilogram 

μm micrometer 

UDDW Utah Division of Drinking Water 

UDOT Utah Department of Transportation 

UDWQ Utah Division of Water Quality 

UDWLR Utah Division of Wildlife Resources 

UDWR Utah Division of Water Resources 

UGS Utah Geological Survey 

UPDES Utah Pollutant Discharge Elimination System

USCS Unified Soil Classification System

USDA U.S. Department of Agriculture 

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Park City and Snyderville Basin Water Supply Study Special Report

USGS U.S. Geological Survey 

UV ultraviolet 

WBWCD Weber Basin Water Conservancy District 

WRF Waste Water Reclamation Facility 

WTP Water Treatment Plant 

WWTP Waste Water Treatment Plant 

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Park City and Snyderville Basin Water Supply Study Special Report

Definitions 

Some water terms peculiar to the water industry are briefly defined here in order to better 

understand the information presented. 

Water Supply Terms

Water is supplied by a variety of systems for many users. The general term “supply” is 

defined as the amount of water available. A public agency owns most water supply 

systems, but in some cases the owner/operator is a private company. Thus, a "public" 

water supply may be either publicly or privately owned. Also, systems may supply 

treated and/or untreated water. 

Concurrency – A process established by Summit County Ordinance to ensure adequate 

capacity for community water systems located in the Snyderville Basin. 

Community Water System – A public water system that serves at least 15 service 

connections used by year-round residents or regularly services at least 25 year-round 

residents. 

Equivalent Residential Connection (ERC) – A term used to evaluate service 

connections, other than typical residential domicile, and is an estimate of the equivalent

volume or rate of flow to that of a typical residential connection. 

Maximum Water Supply Available Under Present Conditions – The annual volume of 

water that is the lesser of the hydrologic capacity of the water source, the physical 

capacity of the water system, or the use allowed by water rights. 

Municipal Water Supply – A municipal supply is that which provides water for 

residential, commercial, and institutional uses. The terms municipal, community and city 

are often used interchangeably. 

Municipal and Industrial Water Supply – Includes all water (potable and non-potable) 

supplied for residential, commercial, institutional, light industry, and large self-supplied 

industries. This supply is available from community systems, non-community (transient 

and non-transient) systems, self-supplied industrial systems, and private wells. 

Non-Potable Water Supply – Non-potable water does not meet safe drinking water 

requirements. Secondary irrigation companies and self-supplied industries usually supply 

this water. Sometimes referred to as non-culinary water supply, but usually referred to as 

secondary water. 

Potable Water Supply – Potable water is that which meets all applicable federal and state 

safe drinking water requirements for residential, commercial, institutional and industrial 

uses. Potable is also referred to as culinary or drinking water supply. 

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Park City and Snyderville Basin Water Supply Study Special Report

Public Community Water Supply – This includes potable water supplied by either 

privately or publicly owned community systems which serve at least 15 service 

connections or 25 individuals with year round usage. Water from public community 

supplies may be used for residential, commercial, institutional, and industrial purposes. 

This can include both indoor and outdoor uses. 

Public Non-Community Water Supply – Includes potable water supplied by either 

privately or publicly owned systems of two types: transient and non-transient. Transient 

systems are systems that do not serve 25 of the same non-resident persons per day for 

more than six months per year. Examples include campgrounds, RV parks, restaurants, 

convenience stores, etc. Non-transient systems are systems that regularly serve 25 of the 

same non-resident persons per day for more than six months per year. Examples include 

churches, schools and industries. This report combines transient and non-transient 

systems together and calls them all public non-community systems. 

Reliable System Source Capacity – The portion of the annual water supply that is 

available to meet peak demands. When this number is divided by the average per capita 

usage, the result approximates the maximum population that the water system can serve. 

Secondary Water Supply – This water is usually a pressurized or open ditch water supply 

system with untreated water for irrigation of privately and publicly owned lawns, 

gardens, parks, cemeteries, golf courses and other open areas. These systems, sometimes 

called "dual" water systems, are installed to provide an alternative to irrigating with 

culinary water for outdoor areas. Irrigation companies often provide this supply. Selfsupplied industries can also use secondary water for industrial processes. 

Self-supplied Industrial Supply – This category includes potable or non-potable water, 

usually from their own wells or springs, supplied by individual privately owned 

industries. 

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