C153773 Feasibility Study

• Contract/PO #: C153773
• Contractor Name: Morrison, Town of
• Contract Type: Loan
• Water District: 9
• County: Jefferson
• Bill Number: HB 95-1155
• Loan Projects - Doc Type: Feasibility Study

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MASTER PLAN - W ATER SUPPLY SYSTEM
TOWN OF MORRISON
JEFFERSON . COUNTY, COLORADO

TABLE OF CONTENTS

Item

Page

SECTION I - INTRODUCTION

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-I

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

~~d...................................................~
Study Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

SECTION II - EXISTING WATER SYSTEM

A. Water Source ............................................... II-I

Water Rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-I
Water Yields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-5
Reservoir Operation Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-5
Design Criteria ......................................... II-6
B. Existing Raw Water Delivery System ................................ II-7
C. Water Treatment Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-lO
D. Distribution System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-ll

SECTION III - ANALYSES AND PLAN DEVELOPMENT ...................... III-I

A. Water Source ............................................... III-2
Ultimate Service Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III-2
Development Priority ..................................... III-3
Agreement to Serve Cooley Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . III-4
Summary - Water Source Based Design Criteria . . . . . . . . . . . . . . . . . . . . . III-5
B. Raw Water Supply ............................................ III-5
Option B-1: Maintain the Existing Gravity Intake . . . . . . . . . . . . . . . . . . . . III-7
Option B-2: Construct a New Pump Station Intake .................. III-lO
Pipeline From the Treatment Plant to the Operating Reservoir . . . . . . . . . . . III-I2
Pumping From the Operating Reservoir to Cooley Reservoir . . . . . . . . . . . . III-13
Recommended Alternative Plan .............................. III-I4
C. Water Treatment ............................................ III-I6
Treatnient Processes ..................................... III-I6
Alternative C-I ........................................ III-I7
Alternative C-2 ........................................ III-IS
Alternative C-3 ........................................ III-IS
Water Treatment Plant Conclusions. . . . . . . . . . . . . . . . . . . . . . . . . . . . III-IS

70.080.035:072596