Consent Decree Sewershed 12 Corrective Action PlanMasterpiece on the Mississippi
TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Sewershed 12 Corrective Action Plan
US EPA Consent Decree Required Submittal
DATE: November 27, 2012
Dubuque
kital
All- America City
II 111!
2012
City Engineer Gus Psihoyos recommends City Council approval of the Corrective Action
Plan for Sewershed 12, and submittal to the US Department of Justice, US EPA and the
Iowa Department of Natural Resources.
The purpose of the Corrective Action Plan is to present the findings of the inflow and
infiltration (I &I) identification activities along with the associated improvements that will
reduce the volume of I &I into the collection system.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
brit44
Michael C. Van Milligen
MCVM:jh
Attachment
cc: Barry Lindahl, City Attorney
Cindy Steinhauser, Assistant City Manager
Teri Goodmann, Assistant City Manager
Gus Psihoyos, City Engineer
Masterpiece on the Mississippi
TO: Michael C. Van Milligen, City Manager
FROM: Gus Psihoyos, City Engineer
SUBJECT: Sewershed 12 Corrective Action Plan
US EPA Consent Decree Required Submittal
DATE: November 20, 2012
Dubuque
kadhl
an- Ameilcacm►
2012
INTRODUCTION
The purpose of this memorandum is to request City Council approval to authorize the City
Manager to sign and submit to the appropriate parties, the City of Dubuque's Corrective
Action Plan for Sewershed 12.
BACKGROUND
The City of Dubuque, Iowa is under a Consent Decree according to Case
2:11 -cv- 01001 -EJM, United States of America and the State of Iowa v. the City of Dubuque,
IA (N.D. Iowa), Civil Action Number 2008V00041, DOJ Case Number 90 -5 -1 -1 -09339
effective June 27, 2011. Per the Consent Decree, the City is required to submit a Corrective
Action Plan for Sewershed 12 no later than December 31, 2012.
DISCUSSION
The purpose of the Corrective Action Plan is to present the findings of the inflow and
infiltration (I &I) identification activities i.e. property inspections, smoke testing, etc along with
the associated improvements that will reduce the volume of I &I into the collection system.
The Plan details the location of sanitary sewer manholes, sanitary sewer mains, and catch
basins within Sewershed 12, that have been identified as sources of I &I. The Plan also
reports on private properties that during inspection were found to have an illicit connection
to the sanitary sewer system. The report includes FY2014 improvements and budgetary
estimates and outlines additional work to be completed under future budgets.
ACTION TO BE TAKEN
I respectfully request the City Council approve and authorize the City Manager to sign the
Corrective Action Plan for Sewershed 12 in its entirety; with submittals to the US
Department of Justice, US EPA and the Iowa Department of Natural Resources.
cc: Barry Lindahl, City Attorney
Denise Ihrig, Environmental Engineer
Prepared for:
UNITED STATES
ENVIRONMENTAL
PROTECTION AGENCY,
UNITED STATES DEPARTMENT
OF JUSTICE
AND
IOWA DEPARTMENTOF
NATURAL RESOURCES
Prepared by:
CITY OF DUBUQUE, IA
th
50 W 13 Street Dubuque, IA
52001
Sewershed 12
Corrective Action Plan
Consent Decree No. 2:11 -cv- 01011 -EJM
November 27, 2012
TABLE OF CONTENTS
1.0 CERTIFICATION 4
1.1 CERTIFICATION STATEMENT 4
2.0 INTRODUCTION 5
2.1 BACKGROUND 5
2.2 PURPOSE 5
2.3 CORRECTIVE ACTIONS 5
Figure 2 -1 Map of Priority Sewersheds for Inflow & Infiltration Investigation 6
3.0 INFLOW & INFILTRATION REDUCTION METHODS & IMPROVEMENT PLANNING 7
3.1 METHODS 7
3.1.1 'Low Hanging Fruit' 7
3.1.2 Sewer Capacity Evaluation 7
3.1.3 Clean and Closed Circuit Televise (CCTV) Sanitary Sewers 7
3.1.4 Documentation 8
3.1.5 Applicability of Techniques 8
3.1.6 Collection System Flow Monitoring: Permanent and Mobile Units 8
3.1.7 Private Property Improvements 9
3.1.8 Ordinance and Policy 9
3.2 SANITARY SEWER ASSESSMENT METHOD FOR REHABILITATION /REPLACEMENT 9
3.2.1 Condition Grade 10
3.2.2 Criticality Grade 10
3.2.3 Priority Grade 10
3.2.4 Corrective Actions 11
Figure 3 -1 Guidelines for Condition Assessment and Rehabilitation - All Sewersheds 11
4.0 PRIVATE PROPERTY INSPECTIONS 12
4.1 INSPECTIONS 12
4.2 CORRECTIVE ACTIONS 12
Table 4 -1 Failed and Corrected Private Property Inspections 13
5.0 SMOKE TESTING 17
5.1 INVESTIGATION 17
5.2 CORRECTIVE ACTIONS 17
5.2.1 Private Property — Lateral and General Investigation and Repairs 17
Table 5 -1 Sanitary Sewer Smoke Testing: Private Property Defects — Lateral Source 17
Table 5 -2 Sanitary Sewer Smoke Testing: Private Property Defects — Various Sources 19
5.2.2 Sanitary and Storm Sewer Investigation and Corrective Action 19
Table 5 -3 Sanitary Sewer Smoke Testing: Public Property — Sanitary Sewer Mains 20
Table 5-4 Sanitary Sewer Smoke Testing: Public Property —Storm Sewer Catch Basins 20
6.0 MANHOLE OBSERVATIONS 21
6.1 INVESTIGATION 21
2
6.2 CORRECTIVE ACTIONS 21
Table 6 -1 Manholes Scheduled for Repair (from October 2011 Smoke Testing) 2013 -2014 21
Table 6 -2 Brick Manholes Scheduled for Rehabilitation or Replacement 2013 -2014 22
7.0 SANITARY SEWER REHABILITATION /REPLACEMENT 23
7.1 SANITARY SEWER INVESTIGATION 23
7.2 CORRECTIVE ACTIONS 23
Table 7 -1 Sanitary Sewer Rehabilitation Schedule 2013 -2014 23
8.0 PLAN, SCHEDULE, AND BUDGET SUMMARY 25
8.1 FUNDING 25
8.2 BUDGET 25
Table 8 -1 Budgetary Estimate FY2014 25
3
1.0 Certification
1.1 CERTIFICATION STATEMENT
I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted, and that based on my directions and my
inquiry of the person or persons who manages the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations.
Michael C. Van Milligen
City Manager
4
2.0 Introduction
2.1 BACKGROUND
The City of Dubuque, Iowa is under a Consent Decree according to Case 2:11 -cv- 01001 -EJM, United
States of America and the State of Iowa v. the City of Dubuque, IA (N.D. Iowa), Civil Action Number
2008V00041, DOJ Case Number 90- 5 -1 -1- 09339, effective June 27, 2011.
2.2 PURPOSE
The purpose of this report is to satisfy Section V, Paragraph 12 of the Consent Decree. Paragraph 12
requires the City to submit a corrective action plan for Sewershed 12 by December 31, 2012.
Prior to June 27, 2011, the City experienced several discharges of untreated or partially treated
wastewater. These events were caused by sharp increases in flow within the sanitary sewer system
during and immediately after a rainstorm. To better locate the sources of this issue, the City placed
flow meters throughout the city. Depending on location, the meters measured the flow of water
from each sewershed over a one to eleven month period of time.
Five of the twelve sewersheds, including Sewershed 12, were identified as receiving elevated flows
during and directly after a precipitation event, leading the City to believe the source is from direct
inflow from a pipe or pumped discharge or infiltration resulting from pipe separation /condition
issues, allowing infiltration of groundwater. Under the Consent Decree, the City has agreed to
investigate five sewersheds over a period of five years (Figure 2 -1) with the goal of reducing the
sources of inflow and infiltration (I &I).
2.3 CORRECTIVE ACTIONS
The City has employed numerous methods to investigate sources of I &I including: private property
inspections; sanitary sewer smoke testing; manhole condition identification; sanitary sewer closed
circuit televising (CCTV) and pipe condition prioritization using the NASSCO assessment and
certification program guidelines; and performing dye testing on larger developments where
downspouts are not visible. Corrective actions based on the techniques and methods identified in
this report are provided in subsequent sections of this plan. Section 3 shows the evaluation
methods in greater detail, sections 4 through 7 details the corrective actions and implementation
schedule; and section 8 provides the budgetary estimates for the prescribed corrective actions.
5
Figure 2 -1 Map of Priority Sewersheds for Inflow & Infiltration Investigation
1°--N of
Inflow & Infiltration Progra
Sanitary Sewersheds To Be Inspected
:b ' /* II KENNEDY RD
DERBY GRANGE RD
DUB E
w 32ND 5T 4s^
iA
qse KAUFMANN AVE
SewersNer140
I. o S a HILLCREST RD n
ti S n
m ri EA mANNE.
1. -m a PENNSVLVANIAAVE o
MN„,
1CHAVEN� LE RO ¢
O � v
P N
W±E
TPo
S ^wAA OG e
DODGE STS
DAGIS
Figure 2 -1. Map of priority sewersheds for I &I investigation.
3.0 Inflow & Infiltration Reduction Methods & Improvement Planning
3.1 METHODS
Improvement planning is traditionally based upon several factors, including reported failures,
condition reports from sanitary sewer televising, and visual inspections. In addition to determining
improvements based on the structural integrity of the sanitary sewer system, it has become equally
important to reduce the volume of inflow and infiltration (1 /1) into the collection system. I/I can
have a detrimental effect at the wastewater treatment facility, lift stations operations, and can
cause significant damage and create health and safety issues in private properties.
The end goal of any I/I reduction method is to see a measurable improvement. The following
outlines eight methods that will enable the City to chart a course to successfully monitor and
ultimately reduce sanitary sewer overflows, lift station maintenance, and treatment plant
surcharges and supplements the actions described in the approved City of Dubuque CMOM.
Improvements outlined in later sections of this report are the result of many of the following
methods, and will continue to be used to develop future improvements. In addition, a greater
emphasis will be placed on flow monitoring to gauge the performance of improvements.
3.1.1 'Low Hanging Fruit'
As with any collection system that at some point was directly connected to the storm sewer system,
such as Dubuque's collection system, potential cross connections may still exist. The most likely
remaining cross connections are combined sewer system manholes; floor, driveway, and roof
drains; and while not direct, storm sewers located within the same trench or within close proximity
to the sanitary sewer.
3.1.2 Sewer Capacity Evaluation
Prior to performing rehabilitative techniques in any of the sewersheds based on location and age of
the sewers, the dry weather flow will be compared to the design capacity of the sanitary sewer
because lining a sewer that is already under capacity for the area may not necessarily improve
conditions.
3.1.3 Clean and Closed Circuit Televise (CCTV) Sanitary Sewers
To fully understand the condition for replacement or rehabilitation of the collection system all
sewers should be cleaned followed by a CCTV inspection. The schedule and frequency is covered in
the CMOM.
7
Note regarding Vacuum and Condition Reporting of Sanitary Sewers: If debris is not removed from
the system it may become lodged in the line or block manholes resulting in a sanitary sewer
overflow.
3.1.4 Documentation
In addition to performing the cleaning and televising, the reports will be reviewed in detail and
documentation of the review will be catalogued. During an inspection or review of any collection
system rehabilitative program it is important to be able to provide evidence of the condition
assessment.
3.1.5 Applicability of Techniques
Accepted rehabilitative techniques such as sanitary sewer lining and vertical lining of manholes
have proven to be successful in reducing inflow and infiltration and while the lining product is a
structural product not necessarily an I/I product the industry is recognizing its use in I/I reduction.
Care must be taken to obtain and review shop drawings and samples of products to be used.
Contract documents and specifications must be written in a manner clearly outlining the intended
use and results expected of the products. Sanitary sewer replacement may be necessary if pipe
capacity or significant structural deterioration or defects are beyond the capabilities of a structural
liner. Storm sewers should also be addressed at this time to ensure sufficient capacity is present
with an adequate number of inlets.
3.1.6 Collection System Flow Monitoring: Permanent and Mobile Units
Understanding of how flow travels through the collection system using flow meters both
permanent and mobile units assists the city in determining key locations in need of improvement
and can be used to monitor the area post improvement. While sanitary sewer hydraulic models are
used to determine surcharging in a collection system under set parameters, calibration of a model is
still required from actual flows. Flows change and are dynamic in nature, and while a model
snapshot may provide interim data, a model does not necessarily allow for active management of
how and when an overflow may occur, allowing for timely prevention. Collection system flow
monitoring will take flow metering data and relay in real time system problems, such as fouling of
the meter, pipe /manhole surcharging, or other issues that may cause interruptions in service or a
health and safety issue.
Note regarding Permanent Flow Meters: Budgeted for FY 2014 (see Section 8), the City is scheduling
its first installation of a permanent flow metering device that can be hardwired for power and data
transfer to the SCADA system. This will enable staff to observe and manage flows as they approach
the lift stations and water resource and recovery center. Flow data is crucial for targeting capital
expenditures and determining the success of capital improvements. In the event the installation
8
relays the information and meets expectations, additional permanent flow metering locations will
be recommended.
3.1.7 Private Property Improvements
Private property inspections for illicit discharges, not including the service lateral, are currently
being conducted under the Consent Decree and those that were performed under other studies are
invaluable in determining to what extent the private sector maybe contributing I/I to the collection
system. For an external source of I/I coming from a private property, such as a driveway, the area
draining to the driveway may determine the level of contributing risk. In some cases, a private
property driveway drain may not easily be disconnected as it may drain a large drainage area due to
lack of inlets and storm sewers and disconnecting the drive way drain may lead to significant private
property damage. The current financial assistance program along with "green" technology efforts
may present long term solutions for private property improvements. Immediate relief may not
feasible if the contribution of I/I is not as significant as other sources.
Private sanitary sewer service laterals making up almost half of any collection system need to be
addressed in tandem with local public sewer improvements. Based on soil, natural spring locations,
and groundwater elevations, public sewer improvements can lead to greater problems for a private
service lateral. Lateral replacement or rehabilitation can be very costly, and so with any public
sewer lining contract consideration should be made as to whether is beneficial to install a partial or
tee liner especially where there is a break -in lateral.
3.1.8 Ordinance and Policy
The Sanitary Sewer System, Capacity, Management, Operation and Maintenance Program (CMOM)
as adopted by the City of Dubuque, covers much of what is described in the above Techniques.
CMOM also includes applicable City of Dubuque ordinances and policies, it is important to keep
these relevant, up to date, and enforceable for new and existing development in a vital effort to
reduce inflow and infiltration.
3.2 SANITARY SEWER ASSESSMENT METHOD FOR REHABILITATION /REPLACEMENT
A sanitary sewer priority grading system based on accepted industry procedures offers the City a
proactive approach to eliminating sanitary sewer overflows (SSO5). The system allows City staff to
pinpoint areas within the gravity sanitary sewer pipes that need a more thorough investigation due
to the critical nature of the location, physical attributes of a pipe section, the structural integrity of
the pipe, and operation and maintenance needs of the pipe.
9
3.2.1 Condition Grade
The condition grade of a pipe is determined using structural and operation and maintenance (O &M)
grades acquired by closed circuit television (CCTV) evaluation of the pipe. As a pipe is televised, City
staff uses the National Association of Sewer Service Companies (NASSCO) Pipeline Assessment and
Certification Program (PACP) to code the pipe. Any structural and O &M deficiencies in the pipe are
noted by certified PACP operators. Since 2010, the condition coding for any pipe recorded by CCTV
is automatically done by PipeTech® software which uses the PACP condition grading system matrix.
Any video completed prior to 2010 was coded manually using the PACP condition grading matrix.
The PACP grading system code matrix can be found in the NASSCO PACP manual and ranges from 0
to 5. A grade of 0 means there is no structural or O &M deficiency noted for the pipe. The condition
grade is the maximum of the structural and O &M grades assigned to the pipe.
3.2.2 Criticality Grade
The criticality grade is split into two categories: "Probability of Failure" and "Consequence of
Failure." Specific analysis is performed on each category before they are combined into the
criticality grade. Eleven factors are divided among the Probability and Consequence categories:
1. Material
2. Age
3. Pipe slope
4. Maintenance
5. Proximity of the pipe to a recorded SSO
6. Pre - defined road capacity levels
7. Priority locations within the City
8. Proximity of the pipe to rivers and water bodies
9. Proximity of the pipe to railroad tracks
10. Pipe diameter
11. Pipe is located under a building.
3.2.3 Priority Grade
The priority grade is the final grade for the pipe and determines the order in which the pipes should
be investigated further. These investigations include but are not limited to further observation of
the pipe, repairs, or replacement.
10
The priority grade is dependent on both the condition grade and the criticality grade. The condition
grade has been assigned greater emphasis than the criticality grade because the condition of the
pipe provides more information on if the pipe is likely to fail due to structural issues. The pipe
priority grade follows the recommendation in "Guidelines for Condition Assessment and
Rehabilitation of Large Sewers" paper published in 2001 by the National Research Council of
Canada.
3.2.4 Corrective Actions
The City will improve or replace pipes with priority grades of four and five. This follows the
recommendation established by the National Research Council of Canada in "Guidelines for
Condition Assessment and Rehabilitation of Large Sewers ".
The corrective actions listed in this report are based on the procedures listed herein, with the first
priority given to grade four and five pipes that have been identified for improvement or
replacement.
Rehabilitation and Maintenance Decisions
Final
Grade
Condition
Criticality
Count
Implication
Rehabiliation
Priority
Time of
Next
Inspection
(yr)
1
0 or 1
5
0
Good or Excellent Condition
Not Required
10
1
1 -4
141
Not Required
15 -25
2
2
5
0
Fair Condtion, Minimal Structural Risk
Low
5
2
1 -4
57
Low
10 -15
3
3
5
0
Poor Condition, Moderate Risk
Medium
3
2
1 -4
41
Low
5 -10
5
4
5
0
Very Poor Condition, High Structural Risk
Immediate
0
4
1 -4
28
High
2 -6
5
5
1 -5
12
Failed or Imminent Failure
Immediate
0
Figure 3 -1 Guidelines for Condition Assessment and Rehabilitation - All Sewersheds
11
4.0 Private Property Inspections
4.1 INSPECTIONS
There are 1,456 private properties per the City's records in Sewershed 12. City inspectors have
conducted 1,330 private property inspections to identify roof drain discharge locations, the
presence of any stairwell or driveway drains, and the presence of a sump pit /pump on site. A
passing inspection would indicate no connections of clear water to the sanitary system. A failed
inspection would indicate an improper connection of clear water into the sanitary system, which
could include roof drains connected to the sanitary sewer; a stairwell or driveway drain which is
connected to the sanitary sewer; or a sump pump or floor drain plumbed directly to the sanitary
sewer.
In Sewershed 12, there remain 126 properties to be inspected. The City follows a multi -step
procedure to provide many opportunities for the property owner to arrange an inspection. The first
step is a letter notifying the property owner of the Inflow &Infiltration Reduction Program which
also includes a pamphlet further explaining the program. In the event, we are not contacted after
the letter; we follow up with a phone call then with a door hanger and 'cold - call'. If after the three
attempts, we are not successful, we mail a Final Notice letter along with another copy of the
pamphlet explaining the nature and necessity of the program. The Final Notice letter specifies that
the City's next step is to obtain an Administrative Search Warrant. Again, if no response, the City
will follow with a Notice to Obtain an Administrative Search Warrant, and finally the City will obtain
the search warrant to complete the inspection. For the 126 properties to be inspected in Sewershed
12 we have completed the first three attempts and are issuing the Final Notices. Many of the
properties are vacant or are in foreclosure therefore the Final Notices will also be sent to Lenders
and other interested parties.
4.2 CORRECTIVE ACTIONS
Each improper connection observed during a private property inspection resulted in a failure notice.
The property owner then had 30 days to correct the improper connection, at which point a
re- inspection of the property was conducted to verify that the improper connection was eliminated.
If the improper connection was not corrected, City inspectors reminded the property owner of the
required work; requested a timeline to correct the improper connection; and offered suggestions
on how to efficiently and economically correct the connection. If a property owner chooses not to
correct an improper connection, the City shall pursue legal action against the property owner
pursuant to City of Dubuque Codified Ordinance Chapter 13 -2A -1, 13 -2 -9.
The 73 failed private property inspections are listed in Table 4 -1, 27 have been corrected. Some
improper connections, such as driveway drains, can require complex and costly corrections for
12
property owners. To better understand the cost to property owners, in 2011 the City obtained three
estimates ranging from $4,800 to $6,500 to correct improper driveway drain connections, under the
assumption a positive discharge location is available.
The City is sensitive to the economic hardship these corrections may cause and the need to
eliminate these significant connections to the sanitary sewer. Therefore, a cost -share program has
been established for the City to partner with property owners. City staff will continue using the
cost -share program to balance property owner costs and Consent Decree requirements. (The City
retains the right to rescind the cost -share program at any time for good cause including funding
availability).
The City has notified property owners of improper connections by mail, and City staff will continue
to work with property owners to address the improper connections.
Table 4 -1 Failed and Corrected Private Property Inspections
Line
No.
House
No
Street Name
Defect
Corrective Action
Corrected and
Passed Re-
inspection
1
230
ALPINE
Roof Drain discharge not
located
Dye Test Downspout
confirm discharge
No
2
626
ALPINE ST
Undetermined from Inspection
Re-inspected - ok
Yes
3
555
ALPINE ST
Stairwell drain connected to
Sanitary
Cover stairwell
Yes
4
620
ALTA VISTA ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
5
1260
ALTA VISTA
Sump pump to sanitary, Roof
Drain to sanitary.
Disconnect &
discharge to land
No
6
603
ARLINGTON ST
Yard drain discharges to Sanitary
Disconnect,
landscape
No
7
1370
BELMONT ST
Roof Drain to Sanitary
Disconnect drain
discharge overland
Yes
8
1395
BELMONT ST
Roof Drain to Sanitary
Disconnect drain
discharge overland
Yes
9
702
CALEDONIA PL
Stairwell drains to basement
floor drain right inside door
Cover stairwell
No
10
1118
CENTER PLACE
Roof Drain discharge unknown
Dye Test Downspout
confirm discharge
No
11
565
FENELON PL
Downspout discharges to
Sanitary
Disconnect &
discharge to land
Yes
12
990
GROVE TERRACE
Roof Drain discharge unknown
Dye Test Downspout
confirm discharge
Yes
13
493
HAYDENS LN
Open clay downspout
Cap downspout
No
13
14
309
HILL ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
15
257
HILL ST
Roof Drain discharge unknown
Dye Test Downspout
confirm discharge
Yes
16
636
JEFFERSON ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
17
1090
LANGWORTHY ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
Yes
18
1175
LANGWORTHY ST
Yard drain discharges to Sanitary
Disconnect &
landscape
No
19
157
LOCUST ST
Roof Drain discharge unknown
Disconnect, cap &
discharge to land
No
20
259
LOCUST ST
Driveway run off discharges to
sanitary
Discuss options with
property owner
No
21
401
LOCUST ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
22
1105
LOCUST ST
Roof drain and stairwell drain
discharge unknown
Dye Test confirm
discharge
No
23
1088
MELROSE TERRACE
Entry denied
Re- inspect
No
24
1090
MELROSE TER
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
25
1575
MONTROSE TER
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
Yes
26
1505
MONTROSE TER
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
27
1493
MONTROSE TERRACE
Outside floor drain discharges to
sanitary
Disconnect or cover
No
28
555
NEVADA
Window well drains, stairwell
drains discharge to sanitary
Disconnect /plug and
cover stairwell
No
29
983
OXFORD ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
30
969
OXFORD ST
Roof Drain discharge unknown
Dye Test and
Disconnect
Yes
31
529
PICKETT ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
No
32
1182
RACE ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
Yes
33
1152
RACE ST
Downspout discharges to
Sanitary
Disconnect, cap &
discharge to land
Yes
34
921
ROSE ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
Yes
35
764
ROSE ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
36
1256
UNIVERSITY AVE
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
37
1120
UNIVERSITY AVE
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
38
1052
UNIVERSITY AVE
Two sump pumps discharge to
sanitary
Disconnect &
discharge to land
Yes
14
39
728
UNIVERSITY AVE
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
40
1089
UNIVERSITY AVE
Window leak to sump pit, sump
to sanitary
Seal leak
No
41
696
UNIVERSITY AVE
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
42
782
UNIVERSITY AVE
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
No
43
1224
UNIVERSITY AVE
Roof drain and stairwell drain
discharge unknown
Dye test &
disconnect /cap
Yes
44
1087
W 3RD ST
Stairwell drains to sump pit
Cover stairwell
No
45
1095
W 3RD ST
Yard drains are driveway drains
and property has 2 of them
Disconnect &
landscape
No
46
1084
W 3RD ST
Stairwell to sanitary
Cover stairwell
No
47
453
W 4TH ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
Yes
48
639
W 5TH ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
Yes
49
852
W 5TH ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
No
50
866
W 5TH ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
Yes
51
971
W 5TH ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
Yes
52
997
W 5TH ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
53
1023
W 5TH ST
Sump pump discharges to Floor
Drain
Disconnect &
discharge to land
Yes
54
1030
W 5TH ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
No
55
1003
WEST 5TH ST
Roof Drain discharge unknown
Dye test
No
56
350
W 6TH ST
Window drain discharges to
sanitary
Cover window well
No
57
664
W 7TH ST
Pit No Pump
Install rigid pipe and
pump
Yes
58
461
W 8TH ST
Yard drain discharges to Sanitary
Disconnect &
landscape
No
59
686
W 8TH ST
Pit No Pump
Install rigid pipe and
pump
No
60
1051
WALNUT ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
No
61
1090
WEST 3RD ST
Roof Drain to Sanitary
Disconnect, cap &
discharge to land
Yes
62
555
WEST 11TH ST
Yard Drain discharge unknown
Disconnect &
landscape
No
63
827
WEST 11TH ST
Stairwell Drain Unknown
Dye test
Yes
15
64
490
WILBUR
Roof drain and stairwell drain
discharge unknown
Dye test
No
65
695
WILSON
Roof Drain discharge unknown
Disconnect, cap &
discharge to land
No
66
716
WILSON
Roof Drain discharge unknown
Dye test
No
67
757
WILSON ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
Yes
68
815
WILSON
Roof Drain discharge unknown
Dye test
No
69
845
WILSON ST
Sump Pump discharges to
Sanitary
Disconnect &
discharge to land
No
70
852
WILSON ST
Flexible Hose used to discharge
Sump
Replace flex hose w/
rigid pipe
No
71
1040
WILSON
Roof Drain discharge unknown
Dye test
Yes
72
390
WINONA
Occupant failed to show for
inspection.
Inspection - ok
Yes
73
883
YALE CT
Roof Drain discharge unknown
Dye test - ok
Yes
16
5.0 Smoke Testing
5.1 INVESTIGATION
The City hired WHKS & Co. of Rochester, MN in October 2011 to conduct smoke testing in
Sewershed 12 and identify improper clear water connections. They identified both private property
and public sewer utility issues including possible sanitary sewer system joint and pipe failures,
possible storm sewer catch basin connections, along with possible cracks, leaks or breaks in a
property owner sanitary service laterals.
5.2 CORRECTIVE ACTIONS
Sixty -six (66) defects on fifty -nine (59) sites were identified within Sewershed 12. Photos were taken
of each and mapped. City staff has classified the results into categories to be further investigated
and repaired: private property investigation and repairs; private property lateral investigation and
repairs, public sanitary sewer and storm sewer investigation and repairs; and storm sewer catch
basin investigation and repairs.
5.2.1 Private Property — Lateral and General Investigation and Repairs
Thirty (30) private property issues were identified during smoke testing. Of the 30 sites, twenty -two
(22) are most likely related to sanitary sewer lateral defects. Table 5 -1, lists the 22 private property
sites showing possible lateral issues along with the observations made during smoke testing and the
corrective action required. Identifying the source of I &I in a sanitary sewer lateral can be especially
difficult and expensive for an individual property owner. In the city's fiscal year 2013 budget (July 1
through June 30, 2013), funds were appropriated for sixteen private property lateral inspections;
should televising sanitary sewer laterals be a proven method for identifying a source of inflow and
infiltration, a proposal will be made to include the twenty -two private property sewer laterals from
Sewershed 12 to the next budget cycle (subject to funding availability).
Table 5 -1 Sanitary Sewer Smoke Testing: Private Property Defects— Lateral Source
Line
No.
Location
Ownership
Observation
Corrective Action
1
825 Air Hill St
Private
Smoke from sidewalk joints
below downspout
Televise service lateral during dye test.
Repair /replace lateral as needed.
2
548 W 7th St
Private
Smoke from holes (5) in
backyard
Televise service lateral during dye test.
Repair /replace lateral as needed.
17
3
638 W 8th St
Private
Smoke from front retaining
wall
Televise service lateral during dye test.
Repair /replace lateral as needed.
4
1025 Melrose Terr.
Private
Smoke from water shutoff by
telephone pedestal
Televise service lateral during dye test.
Repair /replace lateral as needed.
5
631 Chestnut St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
6
1125 Highland Place
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
7
500 W 7th St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
8
1296 Langworthy St
Private
Smoke from ground near roof
drain
Televise service lateral during dye test.
Repair /replace lateral as needed.
9
1142 University Ave
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
10
1142 University Ave
Private
Smoke from curb
Televise service lateral during dye test.
Repair /replace lateral as needed.
11
1120 University Ave
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
12
567 Arlington Street
Private
Smoke from retaining wall
Televise service lateral during dye test.
Repair /replace lateral as needed.
13
1155 Grove Terrace
Private
Smoke from ground and
retaining wall
Televise service lateral during dye test.
Repair /replace lateral as needed.
14
1105 Highland Place
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
15
1075 Walnut St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
16
704 Caledonia Place
Private
Smoke from sidewalk joints
Televise service lateral during dye test.
Repair /replace lateral as needed.
17
514 Cooper Place
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
18
555 W 5th St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
19
554 W 5th St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
20
495 W 5th St
Private
Smoke from ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
21
775 Hill St
Private
Smoke from ground around
water valve
Televise service lateral during dye test.
Repair /replace lateral as needed.
22
1090 W 3rd St
Private
Smoke by gutter downspout
and pipe coming out of ground
Televise service lateral during dye test.
Repair /replace lateral as needed.
18
The City will consider the private repairs listed in Table 5 -1 similar to the failed private property
inspections — property owners will be notified by letter in 2013, asked to correct the connection,
and City staff will continue to work with property owners to address the improper connections. Re-
inspections will be conducted to ensure the repair was done correctly.
The remaining eight (8) private sanitary sewer issues listed below in Table 5 -2 will be resolved via a
letter to the property owner informing them of the issue and the corrective measure required, i.e.
replace clean out caps in a period of 30 days, similar to the failed properties under the Private
Property Inspection program. Two of the properties originally observed during smoke testing have
since been corrected, these were completed under the ongoing Private Property Inspection
program.
Table 5 -2 Sanitary Sewer Smoke Testing: Private Property Defects— Various Sources
Line
No.
Location
Ownership
Observation
Corrective Action
1
Loras College
Private
Smoke from storm intake
Dye test storm sewer system, CCTV sanitary
sewer. Repair storm /sanitary sewer
2
997 & 983 Oxford St
Private
Smoke from sump
discharge at curb
Determine sump pump discharge. This property
was corrected.
3
795 Alpine St
Private
Smoke from clean out
Notify property owner to install clean out cap
4
1091 Center PI
Private
Smoke from below building
addition
Further investigate with property owner to
explain possible cause
5
1099 Center PI
Private
Smoke from stairwell drain
Notify property owner to disconnect stairwell
drain from sanitary sewer or enclose stairwell
6
461 W Sth St
Private
Smoke from around
telephone manhole
Notify Utility to further investigate and explain
observation
7
150' East of 461 W
Sth St
Private
Smoke from around
telephone manhole
Notify Utility to further investigate and explain
observation
8
453 W 4th St
Private
Smoke from pipe on the
east side of building
Notify property owner to cap outside standpipe.
This property was corrected.
5.2.2 Sanitary and Storm Sewer Investigation and Corrective Action
Smoke testing revealed 29 public sewer sites where defects were related to the public sanitary
sewer and storm sewer system. Table 5 -3 shows sanitary sewer system defects where there are
possible broken or cracked pipes; Table 5 -4 lists defects in the storm sewer system at catch basins
where they may be a possible direct connect to the sanitary sewer system; smoke was observed at
ten (10) storm sewer catch basins. The catch basins are scheduled for re- inspection and repair, as
necessary in 2013. Sanitary sewer replacement or improvements are detailed in Section 7 and
Section 6 outlines sanitary sewer manhole improvements. One of the manhole sites originally
19
scheduled for chimney seal rehabilitation has since been re- evaluated and is scheduled for full
rehabilitation or replacement, reducing the number of defects shown to twenty- eight.
Table 5 -3 Sanitary Sewer Smoke Testing: Public Property — Sanitary Sewer Mains
Line
No.
Location
Ownership
Observation
Corrective Action
1
Bluff & 1st St
Public
Smoke from concrete island
Dye test area, CCTV main line for
inflow
2
Loras College
Public/
Private*
Smoke from retaining wall
Dye test area, CCTV main line for
inflow
3
MH 5576 - Montrose &
Pickett
Public
Smoke from retaining wall near
manhole
Dye test area, CCTV main line for
inflow
4
515 Cooper PI
Public/
Private*
Smoke from base of retaining
wall
Dye test area, CCTV main line for
inflow
5
515 Cooper PI
Public/
Private*
Smoke from base of power pole
Dye test area, CCTV main line for
inflow
6
Alley between Center PI &
Alta Vista St. on Univ. Ave
Public/
Private*
Smoke from base of retaining
wall
Dye test area, CCTV main line for
inflow
7
Alley between 18th St &
15th St on Cornell
Public/
Private*
Smoke from valve & sidewalk
cracks
Dye test area, CCTV main line for
inflow
8
MH 5619 - Loras & Cox St
Public
Smoke from retaining wall
Dye test area, CCTV main line for
inflow
Table 5-4 Sanitary Sewer Smoke Testing: Public Property — Storm Sewer Catch Basins
Line
No.
Location /Address
Ownership
Observation
Corrective Action
1
461 W Sth St
Public
Smoke from Sth Street catch basin
: Premier Linen building
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
2
12th & Bluff St
Public
Smoke from catch basin
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
3
Hill St & Caledonia
PI
Public
Smoke from catch basin
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
4
W Sth St & Hill St
Public
Smoke from catch basin
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
5
461 W Sth St
Public
Smoke from catch basin
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
6
11th Street & Bluff
Street
Public
Smoke from catch basin in NW
corner of intersection
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
7
Hill St & Birch St
Public
Smoke from catch basin in SE
corner of intersection
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
8
Hill St & Birch St
Public
Smoke from catch basin in SW
corner of intersection
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
9
Hill St & W 5th St
Public
Smoke from catch basin on south
side of intersection
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
10
Hill St & W Sth St
Public
Smoke from catch basin
Dye test catch basin CCTV Sanitary Sewer -
Repair lateral or section of sewer
20
6.0 Manhole Observations
6.1 INVESTIGATION
There are 345 sanitary sewer manholes within Sewershed 12, 340 are considered to be owned and
maintained by the city and five are private. The 340 operated by the city were observed and defects
documented. Brick manholes are of greater I &I concern as they are typically older and mortar used
to secure the brick has deteriorated allowing for seepage and infiltration of groundwater. Of the
340 public manholes in Sewershed 12, 137 are brick with a notable condition rating of 'very poor',
'poor' and 'in need of repair, rehabilitation, or replacement'.
6.2 CORRECTIVE ACTIONS
The City will begin repairs, rehabilitation, or replacement starting with manholes that can be
repaired as shown in Table 6 -1, and those with a higher criticality rating demonstrating high
infiltration and high risk failure in a health and safety area, i.e. streets, these are listed in Table 6 -2.
Table 6 -2 lists 25 brick manholes that are in significant need of rehabilitation or replacement. The
projects listed in Tables 6 -1 and 6 -2 can be completed in tandem to increase effectiveness of the
repair. The remaining 105 brick manholes will continue to be observed and placed on future capital
improvement budgets.
Table 6 -1 Manholes Scheduled for Repair (from October 2011 Smoke Testing) 2013 -2014
Line No.
Location
Address
Ownership
Observation
Corrective Action
1
MH 6767
Cox @
Loras
Public
Smoke from manhole and sidewalk
in front of Loras Physical Plant
Reconstruct manhole
chimney
2
MH 5684
12th &
Grove
Public
Smoke from around manhole
Reconstruct manhole
chimney
3
MH 7055
5th &
Raymond
Public
Smoke from around manhole
Reconstruct manhole
chimney
4
MH 6758
5th &
Roberts
Public
Smoke from ground near manhole
Reconstruct manhole
chimney
5
MH 5572
Pickett &
Montrose
Public
Smoke from pavement joints around
manhole
Reconstruct manhole
chimney
6
MH 5606
Walnut &
Loras
Public
Smoke from joints around manhole
Reconstruct manhole
chimney
7
MH 5632
Cummins
St
Public
Smoke from joints around manhole
Reconstruct manhole
chimney
8
MH 7008
16th &
Montrose
Public
Smoke around manhole in backyard
Reconstruct manhole
chimney
9
MH 5619
Cox @
Loras
Public
Smoke around manhole and
sidewalk
Reconstruct manhole
chimney
10
MH 5594
Alley at
Dell
Public
Smoke from joints around manhole
and adjacent steps
Reconstruct manhole
chimney
21
Table 6 -2 Brick Manholes Scheduled for Rehabilitation or Replacement 2013 -2014
Line No.
Manhole ID
Location
Lid /Cover
Type
Manhole
Type
MN
Condition
Yr Installed
1
SAN S 07008
1545 Fairview Place
Closed Pick
Brick
Poor
Unk
2
SAN S 05619
776 Loras Blvd
Closed Pick
Brick
Poor
Unk
3
SAN S 05594
567 Arlington, Rear
Closed Pick
Brick
Poor
Unk
4
SAN S 04302
Maiden Lane
Closed Pick
Brick
Poor
Unk
5
SAN S 04232
205 Bluff St
OpenNoBolt
Brick
Poor
1989
6
SAN S 04241
Alley btw 441 &467 Bluff
OpenNoBolt
Brick
Poor
1905
7
SAN S 04244
491 W 4th St
OpenNoBolt
Brick
Poor
1968
8
SAN S 04303
Maiden Lane
OpenNoBolt
Brick
Poor
1992
9
SAN S 04304
Maiden Lane
OpenNoBolt
Brick
Poor
1992
10
SAN S 04325
Alley E of Bluff St
OpenNoBolt
Brick
Poor
1917
11
SAN S04327
Alley E of Bluff, 5 of W 4th
St
OpenNoBolt
Brick
Poor
1917
12
SAN S05715
970 Grove Terr
OpenNoBolt
Brick
Poor
Unk
13
SAN S 04515
801 Bluff St
OpenNoBolt
Brick
Poor
1905
14
SAN S 05587
525 Loras Blvd
OpenBolt
Brick
Poor
1924
15
SAN S 05603
637 Arlington St, Rear
OpenNoBolt
Brick
Repair
1911
16
SAN S 05623
Cnr Loras and Cummins
OpenNoBolt
Brick
Poor
1924
17
SAN S 05627
604 Chestnut St, Rear
OpenNoBolt
Brick
Poor
1920
18
SAN S 05671
1132 Center PI, Rear
OpenNoBolt
Brick
Poor
1920
19
SAN S 05676
Alley E of Race St, 5 of Rose
St
Open Pick
Brick
Poor
1915
20
SAN S 05680
Alley 982 Center PI
OpenNoBolt
Brick
Poor
1920
21
SAN S 05682
Alley 1025 Walnut St
OpenNoBolt
Brick
Poor
1913
22
SAN S05693
618 University Ave
OpenNoBolt
Brick
Poor
1912
23
SAN S05706
590 University Ave
OpenNoBolt
Brick
Poor
1912
24
SAN S 05804
Alley 716 Wilson St
OpenNoBolt
Brick
Poor
1913
25
SAN S 07174
825 Air Hill St
OpenNoBolt
Brick
Poor
1913
22
7.0 Sanitary Sewer Rehabilitation /Replacement
7.1 SANITARY SEWER INVESTIGATION
There are 63,859.72 lineal feet or approximately 12 miles of sanitary sewer in Sewershed 12, of
which 7,442 feet has a NASSCO assessment condition rating of 4 or greater along with an
operations and maintenance rating of 3.5 and greater. Further evaluation of these sections of pipe
show they are dated from 1905 to 1924. The most common pipe material is vitrified clay which has
an accepted design life of 50 years but has been known to perform for greater than 80 years.
Vitrified clay pipe performs well, unless the structural integrity of the pipe has been compromised.
Pipe locations shown in Table 7 -1 have in many cases been compromised and therefore are
scheduled for rehabilitation. Further corrective actions may be necessary as continued flow
monitoring may identify additional improvements, which will be placed on future budget cycles.
7.2 CORRECTIVE ACTIONS
Based on the material type, condition assessment, and age of the pipe seen in Sewershed 12, the
City recommends the rehabilitative technique of cured -in- place -pipe (CIPP) for 7,442 lineal feet
along with any necessary point repairs. Table 7 -1 lists location and pipe lengths scheduled for
rehabilitation. For budgetary estimating purposes, the lineal footage is rounded up to 7,500.
Table 7 -1 Sanitary Sewer Rehabilitation Schedule 2013 -2014
Line No.
U/S Manhole
D/S Manhole
Sewershed
Location
Pipe
Dia.(in)
Pipe
Material
Est. Total
Length, (FT)
1
SAN S 07007
SAN S 07008
12 -1
Cornell St.
8
VCP
137
2
SAN S 04949
SAN S 05608
12 -1
Arlington St.
8
DIP
194
3
SAN S 05608
SAN S 05602
12 -1
Arlington St.
8
VCP
245
4
SAN S 05599
SAN S 05594
12 -1
Arlington St.
8
VCP
171
5
SAN S 05632
SAN S 05623
12 -1
Cummins St.
8
VCP
132
6
SAN S 05592
SAN S 05587
12 -1
Dell St. North
8
VCP
133
7
SAN S 05715
SAN S 05720
12 -1
Grove Terrace
8
VCP
214
8
SAN S 05720
SAN S 05688
12 -1
Loras Blvd
8
VCP
176
9
SAN S 05616
SAN S 05614
12 -1
Loras Blvd
8
VCP
145
10
SAN S 05593
SAN S 05587
12 -1
Loras Blvd
8
VCP
320
11
SAN S 05607
SAN S 05600
12 -1
Prairie St.
8
VCP
132
12
SAN 5 04517
SAN 5 04520
12 -1
W 12f' St.
8
VCP
315
13
SAN 5 05671
SAN S 05665
12 -2
Center PI
8
VCP
206
14
SAN S 05831
SAN S 05827
12 -2
Delhi St.
8
VCP
217
15
SAN S 05832
SAN S 05831
12 -2
Delhi St.
8
VCP
106
16
SAN 5 05664
SAN 5 05665
12 -2
Rose St.
8
VCP
273
23
17
SAN S05693
SAN S05706
12 -2
University Ave
8
VCP
218
18
SAN S05698
SAN S05815
12 -2
University Ave
8
VCP
198
19
SAN S 05760
SAN S 05761
12 -2
Wilson Ave.
8
VCP
239
20
SANS 04297
SANS 04298
12 -3
Cooper PI
8
VCP
211
21
SANS 05713
SANS 04512
12 -3
W 8th St.
8
VCP
154
22
SAN S 05705
SAN S 07416
12 -3
W 8th St.
8
VCP
135
23
SAN S 05708
SAN S 05709
12 -3
WSth St.
8
VCP
180
24
SAN S 04304
SAN S 04303
12 -3
Maiden Lane
8
VCP
167
25
SAN S 04303
SAN S 04302
12 -3
Maiden Lane
8
VCP
193
26
SAN S 04302
SAN S 07433
12 -3
Maiden Lane
8
VCP
159
27
SAN S 07151
SAN S 05741
12 -4
Alpine St.
8
VCP
238
28
SAN S 05747
SAN S 05746
12 -4
Harvard St.
8
VCP
325
29
SAN S 05757
SAN S 05804
12 -4
Wilson Ave.
8
VCP
359
30
SAN S 05704
SAN S 05805
12 -4
Wilson Ave.
8
VCP
313
31
SAN S 04279
SAN S 04280
12 -5
Cardiff St.
8
VCP
154
32
SAN S 04347
SAN S07173
12 -5
Emmett St.
8
VCP
324
33
SAN S 04519
SAN S 04520
12 -5
St Mary's St.
8
VCP
157
34
SAN S 03951
SAN S 03952
12 -5
Langworthy
St.
8
VCP
203
35
SAN S 04274
SAN S 04275
12 -5
Summitt St.
8
VCP
138
36
SANS 04283
SANS 04348
12 -5
W 3rd St.
8
VCP
261
VCP— Vitrified Clay Pipe
DIP — Ductile Iron Pipe
24
8.0 Plan, Schedule, and Budget Summary
This plan addresses work to be conducted by the City and private property owners within
Sewershed 12. The plan is subject to approval by the US EPA and Iowa DNR.
8.1 FUNDING
The Capital Improvement Program (CIP) Budget represents the City of Dubuque's five year physical
development effort. The CIP attempts to address a variety of needs, which the City must meet if it is
to maintain its physical facilities, meet its service commitments, and provide for its future
development. The CIP Budget reflects the City's comprehensive plan and the goals and priorities
established by the City Council. The first year of the five -year CIP Budget goes into the budget for
the next year and deserves the most attention. The CIP Budget is updated each year so the City
Council has the opportunity to change the next four years and add a new year.
At this time, the CIP Budget is sufficient to fund the corrective actions identified in this plan.
However, the City reserves the right to adjust or remove corrective actions from this plan based
upon funding, further investigation, and future I &I- related priorities in other sewersheds.
8.2 BUDGET
The following table, Table 8 -1, lists the associated costs of the work necessary to progress toward
reducing inflow and infiltration into the sanitary sewer system.
Table 8 -1 Budgetary Estimate FY2014
Item No.
General Description
Quantity
Unit
Est. Cost (YR2012)
Estimate
1
Reconstruct Manhole Chimney
10
Each
$2,500.00
$25,00.00
2
Manhole Rehabilitation/
Replacement
25
Each
$8,000.00
$200,000.00
3
Sanitary Sewer Rehabilitation
7,500*
LF
$28.00
$210,000.00
4
Private Property Assistance
1
LS
$15,000.00
$15,000.00
5
Flow Monitoring
1
LS
$140,000.00
$140,000.00
*Rounded value for budgetary purposes.
25
Estimated Total
$590,000.00