JUNE 2001

(If you are having trouble viewing one of the files below, please contact Mark TenBroek at


The following is the final report and recommendation created by the Sanitary Sewer Overflow Study Task Force to City Council in Spring, 2001. This report summarizes the methodology, the process and the findings of a yearlong study into causes and remedies for basement flooding. The Task Force recommended a comprehensive citywide footing drain disconnection program based on the results of the engineering study and the input of numerous homeowners and citizen groups.

Detailed contents are listed below.  The report is available in two downloadable PDF files:

Main Report (7 MB)

Appendices (9 MB)


Executive Summary
ES.1 Recommendation
ES.2 Background
ES.3 Selected Solution - Footing Drain Disconnection
ES.4 Costs
ES.5 Implementation
ES.6 Solutions in Other Communities
ES.7 Critical Factors for Successful Implementation 

A. Introduction
A.1 Problem Definition
A.2 Design Conditions
A.3 Task Force

B. SSO Advisory Task Force
B.1 Mission
B.2 Specific Objectives
B.3 Action Steps

C. System Background
C.1 Sanitary System Description
C.2 Specific Objectives
C.3 Environmental Considerations
C.4 Public Health Considerations

D. Problem Background
D.1 Basement Backup Locations
D.2 History of Flooding in Study Areas
D.3 Previous Mitigation Attempts Specific to Study Areas

E. Study Design
E.1 Field Monitoring
E.2 Home Owner Survey
E.3 Peer Community Review
E.4 System Modeling Approach
E.5 Pilot I/I Program
E.6 Summary

F. Public Process
F.1 Introduction
F.2 Public Workshops
F.3 Neighborhood Meetings
F.4 Newsletters and Website
F.5 Council Presentations
F.6 Local Television Coverage and Press Coverage
F.7 Home Owner Access to Project Managers
F.8 City Service Survey
F9 Summary

G. Study Area Evaluations
G.1 System-wide Analysis
G.2 Study Area Analysis
G.3 Study Area Models
G.4 Summary

H. Initial Recommendations
H.1 Selection Criteria
H.2 Alternative Ranking and Selection
H.3 Initial Selected Alternatives

I. Additional Decision Influences I.1 Stakeholder Input
I.2 Regulatory Framework

J. Funding Options
J.1 Project Funding

K. City Customer Service Plans
K.1 City Customer Service Plan
K.2 Emergency Response Policies
K.3 Claims Processing and Forms
K.4 Staff Training and Internal Communication
K.5 Home Owner Information Packet

L. Final Recommended Program
L.1 Recommendation
L.2 Implementation Challenges
L.3 Proposed Implementation Steps
L.4 Alternative Project Delivery Methods
L.5 Recommended Delivery Method
L.6 Project Implementation
L.7 Summary


Appendix A - Homeowner Survey
A.1 Survey Questionnaire
A.2 Summary of Responses

Appendix B - Monitoring Information
B.1 Flow Meter Data
B.2 Rain Gage Data
B.3 Footing Drain Study Data

Appendix C - Pilot Installation Surveys

Appendix D - Pilot Installation Specifications/Drawings

Appendix E - Modeling Information

Appendix F - Unit Cost Table
F.1 Construction Costs
F.2 Operation and Maintenance (O&M) Costs

Appendix G - Alternative Cost Sheets
G.1 Orchard Hills and Bromley
G.2 Dartmoor
G.3 Glen Leven
G.4 Morehead

Appendix H - Newsletters

Appendix I - Workshops

Appendix J - Neighborhood Presentations

Appendix K - Council Presentations

Appendix L - Neighborhood Questionnaires

Appendix M - Appendix Peer Community Reviews

Appendix N - Customer Information

Appendix O - City Services Survey Results

Appendix P - Footing Drain Disconnection Cost Components

Appendix Q - Sanitary Sewer Overflow Prevention Advisory Task Force Implementation Plan


Page last updated 10/1/2012