1. Contract Amendment - Wastewater Treatment Plant Odor Controln�
M
City of Kalispell Public Works Department
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y Past Office Box 1997, Kalispell, Montana 59903-I997 - Telephone (406)758-7720, . Fax (406)758-783 I
REPORT TO: Mayor and City Council
FROM: James C. Hansz, P.E., Director of Public Works
SUBJECT: WWTP Expansion Design Task Order, Amendment #1
MEETING DATE: 20 June 2005 (Reviewed: Work Session 7 June 2005)
BACKGROUND: The expansion of the wastewater treatment plant will involve extensive work
to correct the odor problem. Much of this work had originally been programmed to occur as
future expansion phases were initiated, However, during a City Council work session on the
progress of the design effort it was agreed that the initial design phase of expansion should be
modified to include a comprehensive analysis of the odor problem in order to provide specific
facility recommendations and the cost to address odors in the most comprehensive way for the
entire plant. The intent is to implement these recommendations in the initial phase of expansion
/construction if economically feasible.
Our consultant team has moved steadily forward with their design work. They have also
reviewed the design work previously programmed for the future. From that review they have
prepared an amended Task Order for design TO # 1. The purpose of the amendment is to collect
all future odor remediation design tasks into one amendment which will address the odor
problem as requested by City Council and will provide the facility design and cost data
requested. The value of the amendment is $37,701.00. This change is not an increase in the total
work planned for this program. It reflects the cost of performing work now in the current year
that was originally planned for future expansion phases.
In order to meet the odor control goal set by City Council staff recommends the City
Manager be authorized to execute the amended Task Order.
RECOMMENDATION: Authorize City Manager to execute WWTP Task Order #1,
Amendment #1.
Jere 20, 2005 W WTP Task Order #I Amendment 9 Ldoc
ACTION REQUESTED: AT CITY COUNCIL MEETING OF JUNE 20 — MOTION TO
AUTFIORI7,E CITY MANAGER TO EXECUTE WWTP TASK ORDER #/. AMEN17tYIl4:NT
W.
FISCAL EFFECTS: Expenditure of waste treatment funds totaling approximately $37,701.00.
ALTERNATIVES: As suggested by the City Council
Respectfully su
-Rank, P.E.k(
of Public Works
Attachment: Task Order #1,
June 20, 2005 WW'FP J'ask Order #I Amendment # [ Aoc
#1
J es H. Patrick
ity Manager
City of Kalispell, Montana
Kalispell AVM WTP Expansion
Task Order 1 Amendment 1— Odor Control Study
Exhibit A
Scope of Services
100
Project Management
200
Background
S00
Identification and Ranking of Odor Sources
400
Available Control Alternatives
00 '
Alternative Analysis
60.€1'..
Confirmation Odor Testing
700
Recommendations
$00
Public Presentations
TASK 100. PROJECT MANAGEMENT
Objectives:
Plan and execute the water and wastewater facility plan update in accordance with an established
schedule and budget while exceeding quality expectations.
Subtasks:
101 Project Management. The ENGINEER will identify the level of work effort and assess the
project needs; update the City's project manager on a monthly basis (at a minimum) as to
project status and action items; manage internal staff and subconsultants; prepare
monthly invoices; and prepare a monthly progress report.
102 Quality Control. Review all work activities and project deliverables for conformance with
quality control requirements and project standards. Monitor project activities for potential
changes, anticipate changes whenever possible, and with the City's approval, modify
project tasks and approach to keep the overall project within budget and on schedule.
Deliverables:
• Memoranda and meeting notes as required.
• Project status reports and invoices.
City involvement:
• Participate in telephone calls and meetings.
• Review project status reports and approve invoices.
• Review and approve modifications to approach, schedule and deliverables as appropriate.
Engineering Services Agreement - Fxhibit A
Task Order 3 — Odor Control Study 1 of $ April 13, 2005
TASK 200. BACKGROUND
Objectives:
This task will summarize information on the current situation. Work completed in the Preliminary
Engineering Report will be expanded to include characterization of typical wastewater odor
sources, present findings from odor testing, describe local conditions impacting odor dispersion,
summarize historical odor complaints, present results from stakeholder interviews, discuss current
odor control practices and review design considerations.
Subtasks:
201 Existing Facilities. The goal of this subtask is to fortify understanding of existing
conditions. A complete description of the liquid and solids treatment processes will be
developed in consideration of odor contribution. Wastewater odor sources will be
characterized, historical odor data will be summarized, meteorological conditions
affecting odor distribution will be reviewed, surrounding land use will be assessed
including odor sources in the vicinity other than the WWTP and historical odor
complaints summarized. A Stakeholder panel will be developed comprised of
representatives of Homeowner Associations, City Council, Business Owners, and
community groups. A stakeholder workshop will be conducted to identify the type
location and severity of odors at and in the vicinity of the WWTP. Regulatory
requirements will be assessed. Current odor control practices and operational issues will
be evaluated as well as future considerations in light of the planned phased expansion of
the facility.
Deliverables:
Existing conditions report
Copies of stakeholder workshop minutes
City Involvement:
• Provide historical odor data including record of odor complaints
• Take part in stakeholder workshop and assemble stakeholder group
• Assist in defining existing odor control practices
• Review and comment on existing conditions report
TASK 300. IDENTIFICATION AND RANKING OF ODOR SOURCES
Objectives:
This task will identify odor sources within the WWTP and make recommendations for additional
testing as outlined in Task 600. A summary and ranking of odor sources will be provided and foul
air volumes requiring treatment estimated for each unit process.
Subtasks:
301 Surnmary and Ranking of Odor Sources, ENGINEER under this subtask, will develop a
summary and ranking of odor sources at the WWTP. Odor intensity, foul air volume,
frequency of odor generation, and other impacts related to odor sources will be evaluated
for each unit process. An on -site evaluation will be conducted and recommendations will
be made with regard to confirmation odor testing as discussed in Task 600.
Engineering services Agreement - Exhibit A
Task order 3 — Odor Control Study 2 of 5 April 13, 2005
302 Foul Air Estimates. Information gathered from task 30I and task 600 will be used to
estimate volumes of foul air to be treated from each unit process. Containment options
will be evaluated as well as existing plant heading ventilating and air conditioning.
Deliverables:
• Odor surrlrrlary and ranking report
• Foul air volume estimate including containment options discussion and evaluation of existing
plant HVAC system.
City Involvement:
• Provide information on existing 11VAC facilities
• Review and comment on reports
TASK 400. AVAILABLE CONTROL ALTERNATIVES
Objective:
This task will identify available approaches to odor control for each unit process at the WWTP
including containment, conveyance, and treatment.
Subtasks:
401 Overview of General Odor Control Techniques. Work completed as part of the :preliminary
Engineering Report will be expanded to include evaluation of containment, conveyance,
and treatment options for all unit processes.
402 Alternatives Evaluation Process, A set of evaluation criteria will be developed based on
feedback from the City Council, results of stakeholder interviews, and previous project
experience. Odor control alternatives for each unit process will be listed.
Deliverables:
• Alternatives evaluation criteria and alternatives evaluation for each unit process.
City Involvement:
• Feedback on evaluation criteria.
• Review and comment on alternatives available for each unit process.
TASK 500. ALTERNATIVE ANALYSIS
Objective:
This task will provide analysis of alternatives available for each unit process using the evaluation
criteria and listed alternatives for each unit process from Task 400.
Subtasks:
501 Alternative Screening. Alternatives identified as part of task 400 will be evaluated against
the criteria also developed as part of task 400. Alternatives that are unattractive or have
low benefit -to -cost ratios will be eliminated from further study_ A workshop will be held
with plant staff to review and complete the final screening of alternatives.
Digineering Services Agreement - Exhibit A
Task Order 3 — odor Control study 3 of 5 April 13, 2005
502 Recommended Alternative Evaluation. Altematives selected as part of subtask 501 will be
described in detail with regard to impact on odor, cost, implementation complexity,
O&M, and worker safety.
Deliverables:
• Alternatives recommendation report.
City involvement:
• Participate in alternatives screening workshop
• Review and comment on alternatives recommendation report.
TASK 600. CONFIRMATION ODOR TESTING
Objective:
This task will provide on -site testing of odors to identify intensity and nature of on -site odors and
refine design criteria.
Subtasks:
601 On -site Odor Testing. Odor samples will be collected and analyzed for process units
including solids Dandling, fermentation, digestion, headworks, influent pumping, primary
clarification, and bioreactors. Budget will also be included to sample and test up to two
off site odor sources. Samples will be analyzed by dynamic dilution olfactometry using a
trained and screened odor panel. Samples will be quantified in terms of dilution -to -
threshold (D/T) ratio and odor intensity in accordance with ASTM Methods E-679-91
and E-544, respectively.
Deliverables:
• Confirmation odor testing report including test results and evaluation of testing.
City Involvement:
• Review and comment on confirmation odor testing report.
TASK 700. RECOMMENDATIONS
Objective:
This task will present overall recommendations for odor control at the Kalispell AWWTP for
each unit process.
Subtasks:
701 Recommended Plan. Based on background information, stakeholder input, odor testing,
and evaluation of alternatives an overall recommended plan for odor control at the
Kalispell AWWTP will be presented in technical memorandum form and incorporated
into the Phase I expansion Basis of Design Report.
Deliverables:
• Recommended Plan Technical Memoradum
City Involvement:
• Review and comment on recommended plan report.
Engineering Services Agreement - Exhibit A
Task Order 3 — Odor Control Study 4 of 5 April I3, 2005
TASK 800. PUBLIC PRESENTATIONS
The estimated level of effort includes one workshop with stakeholders and one public
presentation of the findings and recommendations of the odor control study. The public
presentation will be planned for a City Council Session or workshop and will include the
Stakeholder group.
Engineering Services Agreement - Exhibit A
I -ask order 3—Odor Control Study 5 of 5 April 13, 2005
KALISPELL AW WFP EXPANSION LEVEL OF EFFORT AND FEE
TASK ORDER 1 • Amendment 1! Odor Control Study
EXHIBIT 8
iASk
.E.—
Estimated
Level of Effort
TOTAL NOURS
Cost($)
MMI ESTIMATED LEVEL OF EFFORT - STAFFHOURS
TGTAL HGllRS nn01 T F1C.5ENIGN FROMM STAFF
—NA-ER ADVISOR ENGINEER ENGINEER
Cost (;1
HOR ESTIMATED LEVEL OF EFFORT. STAFFHOURS
TOTALHOURS PRINCIPAL $ENIOR PROJECT CLERICAL
ENGNEER ENGINEER ENGINEER
10i
"rp"i Managerment
22
a80
4 4
1n90
18
10
8
102
01I.11 y Conhol
12
480
4 4
1320
8 &
201
Ex'isdnq PaeiliEieS
38
d80
4 4
4000
32
32
001
Summary and Ranldn0 of Od0�Saurces
i6
0
2320
16 9
8
302
FOIII AV ESII-I¢5
14
-
0
1910
t4 4
10
401
0—im of Ger 1Odor C-trof Tecrni0ues
8
-
0
100Q
a
e
402
Alternatives Evaluati¢n Pmce55
6
-
0
830
6 2
4
SM
Allerzlalivm Svaentng
i2
-
0
160U
12
12
502
RezommantleAAliernalive Ev410a lion
32
-
0
3720
32
24 8
.1
On-sife Oda, TeoI q
24
-
0
3W0
24
24
7ol
RCCOm rd. Plan
RG0
6 8
2050
96 2
12
4
600
..._
Public Prnsenlatigns
32
720
6 5
.,.,.,...._.w......
2WO
26
22
4
TOTAL HOURS fiE"E'N
240
28 26 0 0 0.
[-- _
2'1d 24
_ _..
160 8
16
HOURLY LABOR RATE
120.00 125.00 85.00 7000
(
/65.00
125.00 0.00
56.00
TOTAL COST DF LA9UR
$ 3120
$3120$6 $0 ;e
263f0
Sa 960
Ego 7g0 Si20
5660
See next page far exp ansas antl task 2otafs
T01O-Conirolferoor, Control Slady 1 Alxitf .2WG
KALISPELL AWVVTP EXPANSION LEVEL OF EFFORT AND FEE
TASK ORDER 1 - Amendment 1: Odor Control Study
EXHIB€T B
See pl¢vio pap.W lebar_'O
MMI DIRECT EXPENSE DESCRIPTION
UNOS
NUMBER UNITS UNIT COST (SI COST Up) ASSUMPTIONS
Subs deuce Par Offer,
days
1 3DOO 30
Pu,pinoble Travel
mlfas
.0 0,63 504
0111C1 T—d
23[h
MDR 0
RalOmo6ile.Rcnlal
,teyv
45,Op p
General Printing
she M
,lo 0
Report Printing
sheets
"I 0
Pla„ P,,Ming
sheets
I 0
Epulpmenl Renta{
IS
0
TechnoE.Oy Charge
Mors
26 ].Sit 4t
6peclaGzed Softwa2
1s
0
ML^cellaneo uv S�pphes
is
0
PostsOwPrelgr�!
each
t5 M 0
TOTAL DIRECT EXPENSES
$625
_ ____
DIRECTEXPENSE
DNITS
NUMBERLOR
DNITS €1
IT COST f_ ST
aays
6
30.00 IM 3 tdpspof twa people
Ac,tparoblie Aaral
mites
b4V
0.5n 496 250rT,fI,: Wp
Qlh.f Tr9�el
each
1
500.00 6., plane lip
AulomoUilt, Rmntal
days
4
SO.00 240
General Priming
sheets
200
0,10 2V
Rel%a, Prinfln_n
sheets
1000
Ole iW
Plan P,Mn ,A
sheets
20
t 20 24
0l Ee,l,n.nt Re ,al
IS
1
275.11 "1
Tec3,nol.gy Cba,Oe
hours
214
4.ro ail
Misretlaneous Supplies
Is
3
3000 on 3X0
P.ltng,'Frelght
each
5
35.00 115 paid pes OTpnlghl
TOTAL DIRECT EXPENSES
�$5987
TASK ORDER 3 •ESTIMATED FEE
BASE ESE ENSE COST
FACTOR CEILING
TOTAL MMI LABOR $S,t20 i $3,129
TOTAL HOR,ABOR $26,310 1.0.6 $27.a2b
TOTALNDROIRECT EXPENSES $5,98'! i.06 $6,286
TOT0.L O'.1TSIOE SERviCE t.05 $p
TOTALMMIR I DEDTEXPENSES $825 tp7 $669
ESTIMATW TQTAI- ENGINEERING FEE TOR TASK ORUFR 1 $377a1
TO fameN'l—ti OtlnrCo,,,rol(aeDAor COnENI study 2 Alp[ 11, 2005