HomeMy WebLinkAboutCouncil Packet - 2/10/2020Council Work Session
February 10, 2020
Time indicated below
Harold E. Getty Council Chambers
Roll Call.
Approval of Agenda, as proposed or amended.
4:10 p.m. Update on the GIS project.
Submitted By: Chris Youngblut, IT Director
Approx. Update on the Waste Management Biosolids Project.
4:40 p.m.
Submitted By: Brian Bowman, Treatment Operations Supervisor
ADJOURNMENT
Kelley Felchle
City Clerk
CITY OF WATERLOO
Council Communication
Update on the GIS project.
City Council Meeting: 2/10/2020
Prepared:
REVIEWERS:
Department Reviewer Action Date
Information Services Felchle, Kelley Approved 2/5/2020 - 12:08 PM
ATTACHMENTS:
Description Type
❑ Presentation Backup Material
SUBJECT:
Submitted by:
Recommended Action:
Summary Statement:
Expenditure Required:
Source of Funds:
Policy Issue:
Alternative:
Background Information:
Update on the GIS project.
Submitted By: Chris Youngblut, IT Director
Strategic Plan
KENDIS SCHARENBROICH
PRO -WEST & ASSOCIATES
What is GIS?
• Geographical Informatia
• Answers WHERE questions
PRDWE T
& Associates
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STRATEGIC PLANN
• Partnered with Pro -West
• The Pro -West process
• Minimize the term "GIS", f.cus
• Meet face-to-face
• Small, focused groups
• High value/low cost first
• Specific, actionable phases
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STRATEGIC PLANN
• Onsite Interviews
• Dept Needs/Reconj1
• H a rdwa re/Softwa ri.
• Integration
• Training
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• 2017/18: Planning
• 2018: Enterpris
• 2019: Solutions
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H a rdwa re/Softwa r
Hardware
Servers
Security
Software licensing �
Esri Enterprise Agreement
Handful of staff w/ GIS access to Dozens
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Progress...
• Data
• Roads/Address data
• Utilities
• Street lights
• Integration
• Water Works
• Dispatch
• Televising
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Solutions
• Field inventories/Collector
• Garbage routes
• Tax viewer
• Utility viewers
• Hydrants: status, inspections
• Code enforcement
• Culture and Arts
• Library
WATERLOO
Featured Maps and Apps
Hydrant Status Viewer
PRDWE T
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Sanitary and Storm Sewer
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Waterloo Water WorksMEI
Featured Content
General Property Viewer
Recycle Route Viewer
Road Closure Map
Welcome to the City of Waterloo's Mapping and GIS Hub!
The City of Waterloo geographic information system (GIS) is a computer based tool for gathering, managing,
and analyzing geographically referenced data. Rooted in the science of geography, GIS integrates many
types of data. It analyzes spatial location and organizes layers of information into visualizations using maps
and 3D scenes. With this unique capability, GIS reveals deeper insights into data, such as patterns,
relationships, and situations - helping users make smatter decisions.
This site provides the City of Waterloo's maps, apps and other resources in one single location. If you are
unable to find information important to you, check out the City Webpage, or contact the Site Administrator.
Your feedback is important to the development of the city's available resources.
Waterloo City Hall
715 Mulberry St
Waterloo, IA 50703
Site development by Pro -West and Associates, Inc.
Usage Time Series
1:324
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Avg Item Views Per Day
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IS
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q:i ,r Magazine for America's Municipalities
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• Hardware/Software
• Upgrades, Scaling
• Integrations
• New business systems
• Data Development
• Staffing
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• Hardware, training, services
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• Emergency management
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CITY OF WATERLOO
Council Communication
Update on the Waste Management Biosolids Project.
City Council Meeting: 2/10/2020
Prepared:
REVIEWERS:
Department Reviewer Action Date
Waste Management Felchle, Kelley Approved 2/5/2020 - 12:11 PM
ATTACHMENTS:
Description Type
❑ Powerpoint presentation Backup Material
SUBJECT:
Submitted by:
Recommended Action:
Summary Statement:
Expenditure Required:
Source of Funds:
Policy Issue:
Alternative:
Background Information:
Update on the Waste Management Biosolids Project.
Submitted By: Brian Bowman, Treatment Operations Supervisor
1 b" A
STRAND
ASSOCIATES®
Excellence in Engineering Since 1946
Strand Associates, Inc.® (6:1)
F.Y. 2020 Wastewater Treatment Plant
Biosolids Modifications Project
City Council Working Session
February 10, 2020
Brian Bowman, Treatment Operations Supervisor
Randy Wirtz, Ph.D, P.E. — Strand Associates, Inc.
Sam Hocevar — Strand Associates, Inc.
$A1
STRAND
Waste Management
ASSOCIATES®
Purpose of Working Session
Planning History and
Project Background
Why Are We Doing This
Project?
Project Overview
Cost and Funding
Next Steps
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STRAND
ASSOCIATES®
Planning For This Project Started In 2016
DNR required Waterloo (and other
Iowa communities) to complete a
Nutrient Reduction Plan by Spring 2017
City hired Stand Associates to
complete the Nutrient Reduction Plan
and an overall WWTP Facilities Plan
Facility Plan and Nutrient Plan were
completed early in 2017
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STRAND
ASSOCIATES®
WWTP Improvements Were Identified and Prioritized in
a Facilities Plan
Recommended Plan Included Phased Implementation
$100 million of capital improvements identified
Phase
Cost Addresses
Near -Term (2018-2023) $56.3 million WWTP Capacity and
Immediate Needs Immediate
Mid -Term (2023-2028) $29. million Equipment Replacement
Long -Term (2028+) $15.,million Hydraulic Capacity
Note: Costs in 1st Quarter 2018 Dollars
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Biolsolids Project is included in this total
STRAND
ASSOCIATES®
Biosolids Project Design Is Complete And Is
Ready For Construction
City considered options for about a year, and then began the
design of the biosolids project in 2018.
Design was complete late in 2019.
Bids were opened on January 23, 2020.
VOLUME 1 OF 2
F.Y. 2020 WASTEWATER TREATMENT
PLANT BIOSOLIDS MODIFICATIONS
FOR THE
CITY OF WATERLOO, IOWA
CITY CONTRACT NO. 994
ISSUED FOR BID - 12I1612019
rinallant
emmumumere
imulimarumis
intiniums
amonissor-
91041.61 W.a. Ornr
MM264444l3116
6046042614.622 fax
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STRAND
ASSOCIATES®
Wastewater Treatment Plant Overview
$A1
STRAN D
Biosolids Processes shared by both plants = critical
ASSOCIATES®
Why Are We Doing This Project?
Improvements to biosolids processes are needed to:
Replace aging infrastructure and equipment.
Improve hydraulic constraints/bottlenecks and internal recycle loads
that effect process stability and performance.
Add flexibility.
Improve safety.
Reduce operating costs.
Wastewater equipment typically has a 20 year planned life,
last major update to most processes was mid-1990s — 25 years ago.
h:qi‘i
STRAND
ASSOCIATES®
Project Overview
Project Components
1 WAS Storage Expansion
and Reconfiguration
2. Thickening Improvements
3. Digester Feed Building
Improvements
4. New Chemical Feed
Building
5. Digester Boiler
Improvements
6. New Centrate Tank
7. Dewatering Improvements
Legend
Renovation
- New Construction
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STRAND
ASSOCIATES®
WAS Storage Expansion and Reconfiguration
WHY
00
401 Why is this included in th
project...?
HOW. 0
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4 How are we addressing
existing concerns...?
STRAND
ASSOCIATES®
WAS Storage Expansion and Reconfiguration
WHY
Solids removed from treatment = WAS
Expansion of WAS storage improves activated sludge process control,
adds flexibility
Recent equipment failures = downtime and bottlenecks
HOW
Use existing tank to add nearly one million gallons of WAS storage =
additional 3 days under average conditions
Replace existing pumps, blowers and other equipment
Address issues with primary sludge pumping
$A1
STRAN D
ASSOCIATES®
Location
on Site
Thickening System Improvements
WHY
HOW
$A1
STRAN D
ASSOCIATES®
Thickening removes water from sludge
Thickener polymer and pumping equipment at the end of its life
Convert from dry to liquid polymer = better working conditions
New polymer systems and tanks
New pumps
Location
on Site
Digester Feed Building Improvements
WHY
HOW
$A1
STRAN D
ASSOCIATES®
Thickened WAS is stored here before being fed to digesters
Equipment in this building is at the end of its useful life
Recent equipment failures = downtime and bottlenecks
New mixers for tanks
New pumps to feed digesters
Reconfigure piping for flexibility
Location
on Site
New Chemical Feed Building
WHY
Ferric chloride is used to control corrosive and toxic gas formation
No permanent ferric storage on site
Totes are currently filled and moved manually = safety concern
Move chemical feed point to help address struvite build-up = operation
and maintenance cost savings
HOW
New building with containment, fire protection system = improved safety
Bulk chemical storage and feed system = improved chemical handling
New feed location so chemical addition impacts more processes
$A1
STRAN D
ASSOCIATES®
Location
on Site
Digester Boiler Improvements
WHY
Digesters break down solids
and destroy pathogens
Boilers required to heat
digesters are at the end of their
useful life
Plant has three boilers total
One boiler failed in 2018 and
was replaced
HOW
Replace two existing boilers
with new equipment
$A1
STRAN D
ASSOCIATES®
Location
on Site
New Centrate Tank
WHY
HOW
$A1
STRAN D
ASSOCIATES®
Centrate from the dewatering equipment has a high ammonia content
Intermittent, high ammonia load shocks the aerobic treatment process
Construct tank to store centrate
Pump to front of plant slowly over 24 hours vs 6-8 hours when
dewatering equipment is running to equalize return flows
Location
on Site
''!1 .-,"1
Dewatering Improvements
WHY
After digestion, solids are hauled off -site and land applied.
Dewatering removes water from digested sludge = reduces hauling
costs (which are based on weight)
New technology exists to achieve dryer sludge
Ongoing equipment failure = process stress, cost for repairs and labor
HOW
New dewatering equipment
Expand building to add second loadout bay
New conveyance system needed to move drier sludge
$A1
STRAN D
ASSOCIATES®
Location
on Site
Example of Cost Savings from this Project
Current Sludge Solids Content: 16.5% 4 18,288 wet tons/year
(Actual data using existing equipment)
Projected Sludge Solids Content: 25% 4 12,062 wet tons/year
(Based on pilot study data)
Annual Hauling Cost Savings = $115,000 (34% reduction)
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STRAND
ASSOCIATES®
Project Cost and Funding
Bids Opened January 23, 2020
Low Bidder: Woodruff Construction, Waterloo, IA
Low Bid: $16,587,300
Four Deductive Bid Alternatives were included:
Alternative 1: $199,000 (Outdoor Biosolids Loadout Area)
Alternative 2: $840,000 (Chemical Building)
Alternative 3: $374,000 (Primary Sludge Improvements)
Alternative 4: $266,000 (Boiler Replacement)
Iowa SRF Funds will be used to fund project.
Current interest rate: 2.0% (20-year loan)
beb-n
STRAND
ASSOCIATES®
Next Steps for This Project
Award Project at February 17, 2020 Council Meeting
Construction to begin in March
Two-year construction period — expected completion in 2022
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STRAND
ASSOCIATES®
Biosolids Modifications Project will address critical
WWTP needs and improve treatment resiliency
Replace aging assets nearing the end of their useful life with
equipment that can reduce operating and maintenance costs
Work with existing infrastructure when possible to minimize costs
while improving process performance and control
Implement solutions to meet current treatment needs while allowing
for adaptation to potential growth and regulatory changes in the future
Primary Objective: protect health and safety of community in an
efficient and cost-effective manner
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Thank you to City Staff and
Council for your support of this
project.
STRAND
ASSOCIATES.
Cash Flow Projections FY2020 Biosolids
0
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STRAND
Anticipated Pay Draw by Contractor
wwrrP Biasixfds M:diecatio tis Prsi!ct
75%0 FiCC
- A vef1JJ Imo' • y
51 rkeYYIe ''. T11i
25% cPcc
Decelerated
Sch le
c5 jr*ele%jICiiz> 1t 'i
ONI ATIU t i c' rt M
ASSOCIATES®
Estimated Monthly Payments its for F c'je't&.:;
1 1:Aith
Monthly
Payment
CuIrnuI_ iye
iint
Amount
March 2020
1 &I,0O0
16E000
Ap if 2020
163,000
320,COD
May 2020
310 ,00C1
630,DOE
June 2020
,00
92O_D1:10
July 2020
3433,000
1.280.
August 2020
1,14(000
2.420,
September 20::
1,1 ,000
3 .• . ' 0,0001
Ocbal ier 2020
1,363,000
4 970,
November nber 2020
580,000
5,55-0,11,DC
December 2020
I:570,000
7,120,0-C '
January 2021
1:3133,00D
8,480,0E2
February 2021
2,180,000
1' .'36O. Ci
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STRAND
Month
if Continued)
Monthly
Payment
Cumulative
Amount
March 2021
11450, 1110
12,110 ,00a
A pri 12021
1,270: 1110
1:,3,a0O
May 2021
44'J,0ECI
13,820,D00
June ar2i
14D, DtO
13, ,000
July 2021
190,E
14,15Ci,icc
August 2021
830: CCO
'4,98C1,D00
September 2021
740,OCf
' 5,720.000
October 2021
1: ::
16, 510,000
November 2CI21
1 50,01X1
16, I,000
Decerrber 2021
17, 1,DOC
January' 2022
17,34.0,000
Fehrunry =
409, I
17,7 .000
Total Estimated Payment Der Fiscal Year
Fiscal
Year
Decelerate[
Schedule
Projected
Sthedule
Accelerated
Schedure
332 '
13,060,000
13,1040,000
12,560.000
20
.4,369,000
3,789.000
2,7E9,000
ASSOCIATES®
Questions and Answers
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STRAND
ASSOCIATES®
1 b" A
STRAND
ASSOCIATES®
Excellence in Engineering Since 1946