91-1023 RJN Environmental c)1-1oa3
RESOLUTION
AUTHORIZING EXECUTION OF AMENDMENT NO. 1 TO AN AGREEMENT WITH
R.J.N. ENVIRONMENTAL ASSOCIATES, INC.
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ELGIN,
ILLINOIS, that Larry L. Rice, City Manager, and Dolonna Mecum,
City Clerk, be and are hereby authorized and directed to
execute Amendment No. 1 to an Agreement on behalf of the City
of Elgin with R.J.N. Environmental Associates, Inc. for flow
monitoring and capacity analysis of the Northeast Interceptor
Sewer, a copy of which is attached hereto and made a part
hereof by reference.
s/ George VanDeVoorde
George VanDeVoorde, Mayor
Presented: October 23, 1991
Adopted: October 23, 1991
Omnibus Vote: Yeas 7 Nays 0
Recorded:
Attest:
s/ Dolonna Mecum
Dolonna Mecum, City Clerk
•
c3Moi, Agenda Item No .
October 4, 1991
TO: Mayor and Members of the City Council
FROM: City Manager
SUBJECT: Northeast Interceptor Sewer
Flow Monitoring and Capacity Analysis
PURPOSE: This memorandum will provide the Mayor and Council
with information to consider an amendment to the contract with
RJN Environmental for the subject flow monitoring and capacity
analysis .
BACKGROUND: The City Council awarded a contract to RJN
Environment, Inc. to perform the Phase I engineering necessary
to provide an extension of the interceptor sewer in the
(Pk northeast area of the City. That work has been completed.
The Phase I engineering found that the existing Poplar Creek
interceptor sewer could accommodate some growth in the northeast
area but would require further engineering examination of the
capacity of the downstream interceptor sewer (Poplar Creek)
because of ground and surface water infiltration and inflow. The
engineering examination would include the installation of flow
monitors at key locations in the line during wet conditions and
provide the City with the true capacity of the sewer. This
analysis would determine its ultimate capacity from which we in
turn can determine whether or not it will be necessary in the
future to parallel or enlarge the existing interceptor sewer to
accommodate the anticipated growth in northeast Elgin.
FINANCIAL IMPACT: RJN Environmental, Inc. , has submitted a
proposed amendment to their contract which would include the
installation of flow monitors and monitoring of six locations
along the Poplar Creek interceptor sewer and a report with
recommendations concerning the present capacity and recommended
improvements, if any. The cost of this additional work is
$29,700. This amount is consistent with this type of work.
This work will be funded by the Sewer Operating Fund (430) .
r
Mayor and Members of the City Council
October 4, 1991
page 2
411
RECOMMENDATION: It is recommended that the Council authorize
the City Manager and City Clerk to execute the engineering
amendment to the contract for the Northeast Interceptor Sewer
with RJN Environmental, Inc. , in the amount of $29 ,700 .
A copy of t .mendment is attached for your consideration.
411/11111114
Larry" L. Rife, City Manager
Attachment
'7)
A,
AMENDMENT NO. 1
AGREEMENT
BETWEEN
CITY OF ELGIN, ILLINOIS
AND
RJN ENVIRONMENTAL ASSOCIATES, INC.
WHEATON, ILLINOIS
THIS AGREEMENT made this day of , 1991 by
and between the CITY OF ELGIN, ILLINOIS, hereinafter called
OWNER and RJN ENVIRONMENTAL ASSOCIATES, INC. , WHEATON ILLINOIS,
hereinafter called ENGINEER.
WHEREAS, the OWNER and ENGINEER have an Agreement dated
May 8, 1991, for professional and engineering services for the
Northeast Interceptor Sewer System Drainage Basin, and
WHEREAS, the OWNER desires the ENGINEER to increase the
scope of services to include flow monitoring services.
NOW, therefore, the OWNER hereby engages the ENGINEER to
provide the following professional services as set forth in this
Amendment No. 1.
Section I - Basic Services of ENGINEER
In Section I - Basic Services of ENGINEER, delete Exhibit A
"Work Plan, Phase I - Preliminary Design " as submitted with the
Agreement of May 8, 1991 and substitute the attached revised
Exhibit which describes the additional flow monitoring services.
Section IV - Schedule of Services
In Section IV - Schedule of Services add the following new
paragraph on page 3 of the Agreement of May 8, 1991:
"Flow meters will be installed within two (2) weeks
after authorization to proceed. A draft of the Phase I -
Preliminary design report, which will include flow
monitoring results and sewer sizing recommendations based
on the flow monitoring results will be submitted within six
(6) weeks after the end of the flow monitoring period. A
final report will be submitted within three (3) weeks after
final City comments of the draft report. Receipt of an
executed copy of this Amendment No. 1 will serve as
authorization to proceed with the work. "
September 12 , 1991 -1-
Section V - Fees and Payments
In Section V - Fees and Payments, delete the second
paragraph and substitute the following new paragraph: 41)
"Because of the uncertainty of final Phase I services,
existing data availability and scheduling considerations, a
final maximum cost for Phase I services cannot be established at
this time. For project initiation purposes, and flow monitoring
for a 45-day period, an interim maximum cost of $64 ,700 is
established and this cost shall not be exceeded without
authorization. For weekly flow monitoring services beyond the
45-day period, the additional cost is $3,315. It is understood
by both parties that the interim maximum cost may not be the
final cost for completing the Phase I services. Compensation
for Phase II and Phase II services will be identified as such
services are negotiated and authorized" .
4)
4)
September 12 , 1991 -2-
IN WITNESS THEREOF, the parties hereto have caused this
Agreement to be executed and their seals to be hereto affixed,
this day of , 1991.
eft
For the OWNER:
CITY OF ELGIN, ILLINOIS
Name
Title
ATTEST:
For the ENGINEER:
RJN ENVIRONMENTAL ASSOCIATES, INC.
(SEAL)
-1
Na e
Title
(SEAL)
Attachments
Exhibit A Work Plan
September 12 , 1991 -3-
Exhibit A
Work Plan (Revised to Include Flow Monitoring) 47)
Phase I - Preliminary Design
A. Determination of Anticipated Wastewater Conveyance Needs
1. Meet with City staff and the Consulting Engineer for
the Northeast Area to be developed to discuss growth
patterns. The primary area of development interest is
located north of Route 58, east of Berner Road, south
of the Northwest Tollway, and west of the Forest
Preserve. Consideration for other properties in the
area are also to be included.
2 . Estimate the design average sewage flow rates based on
the proposed development(s) and the time frame in
which the development(s) is (are) expected to occur.
3 . Communicate and meet with City on regular basis to
discuss project issues.
B. Investigation of Existing Wastewater Conveyance System47)
1. Review existing plans, reports, and sewer maps and
plans to determine the location and capacity of the
existing wastewater conveyance system for the
development area(s) .
2. Review current flow data and water consumption data
for the Northeast Interceptor as provided by the City.
Provide recommendations for additional data if
necessary.
3. Perform on-site review of current interceptor,
development areas, and potential interceptor routings.
C. Investigation of Existing Wastewater Treatment Plant
Capacity.
1. Determine if capacity will be available at the South
Fox River Water Reclamation Plant to adequately treat
the wastewater from the development area in
consultation with Plant officials. 47)
September 12, 1991 -Al-
Exhibit A (Cont. )
D. Evaluation of Routing Alternatives
1. Evaluate routing alternatives for conveying wastewater
from the development to the South Fox River Water
Reclamation Plant. Prepare preliminary estimates of
construction cost for each alternative.
2 . Prepare schematics for most feasible alternatives.
E. Recommended Plan and Report
1. Recommend the most suitable wastewater conveyance
alternative based on construction, cost, and
feasibility.
2 . Identify major easements which may be necessary.
3 . Prepare an exhibit showing the recommended routing.
4 . Submit five copies of a Draft Report and meet with
City staff to discuss the report and obtain City
input.
5. Submit twelve bound copies of the final report with
rrevisions incorporated based on staff feedback.
6. Present the results of the study to the City Council
and other interested parties, if desired.
F. Flow Monitoring -
1. Basic services include installation and calibration of
six (6) continuously recording open channel flow
meters, weekly calibration, weekly service of meters,
flow data reduction, and tabulation of rainfall data
for the flow monitoring period. Pump Station No. 10
will also be calibrated by the fill and draw method.
RJN Environmental will also furnish one continuously
recording rain gauge to measure rainfall intensity
during the flow monitoring program.
r
September 12, 1991 -A2-
Exhibit A (Cont. )
Peak flows measured during wet weather conditions will
be correlated to the actual rain events, that occurred
during the monitoring period. The correlation between
measured peak flows and recorded rain events will be
used to calculate peak flows that occur during rain
events of the desired design year frequency. The
design peak flows would then be compared to the
capacity of the existing sewers to determine the
remaining capacity for future growth areas.
2 . If adequate rainfall conditions and flow data are not
obtained during the 45 day minimum period, field
services and metering equipment would be continued on
a weekly basis until such time as adequate rainfall
and flow data are measured or the City elects to
discontinue the monitoring program.
47,
47)
September 12, 1991 -A3-
101 RJN ENVIRONMENTAL ASSOCIATES, INC.
CONSULTING ENGINEERS
GROUP
June 26, 1991
Mayor and Members of the City Council DRAFT
City of Elgin
150 Dexter Court
Elgin, IL 60120-5555
Subject: City of Elgin
NE Sector Wastewater Interceptor Study
Preliminary Report
Attn: Mr. Larry Rice
City Manager
The purpose of this letter is to provide preliminary sewer
routings and probable construction costs for providing sewer
service to the Northeast Planning Area and to the Sears site.
Description of Planning Areas
The Northeast Planning Area is located north of Route 58, east
of the Commonwealth Edison Utility right-of-way, south of the
Northwest Toliway, and west of the Forest Preserve. The area
comprises approximately 1, 300 acres and is currently
undeveloped. It is expected that the area will be developed
primarily for residential use. The peak wastewater flow rate
is estimated to be approximately 7 million gallons per day
(mgd) , which is based on a population equivalent of 15 persons
per acre and a reasonable allowance for infiltration and
inflow.
The Sears site is located north of the Northwest Toliway, west
of Route 59, south of Route 72 (higgins Road) , and east of
Beverly Road. Based on review of existing data, this area
comprises approximately 1,300 acres.
For purposes of this preliminary report, the peak flow rate
from the Sears site is assumed to be 6 mgd. RJN Environmental
has not yet received confirmation from Sears officials
regarding sewage flow rates.
The general locations of the Northeast Planning Area and the
Sears site are shown on Exhibit 1.
202 W. FRONT STREET
WHEATON, ILLINOIS 60187
(708)682-4777
Mr. Larry Rice
June 26, 1991
Page Two
Development of Alternatives
The development of alternatives has focused on maximizing the
use of the existing Elgin collection system, the 84-inch
diameter Metropolitan Water Reclamation adjacent to District of
Greater Chicago (MWRDGC) interceptor that is adjacent to the
Milwaukee Road Railroad Line, and the existing utility easement
along Lovell Road. The City of Elgin's existing key
interceptor for transporting wastewater generated in the
Northeast Sector Planning Area, herinafter referred to as the
Poplar Creek Interceptor, begins at Bode Road and parallels
Poplar Creek eventually discharging into the Fox Valley Water
Reclamation District's South Fox River Water Reclamation Plant.
The Poplar Creek Interceptor was analyzed in a previous
interceptor sewer master plan prepared by Donohue and
Associates in April 1989. Results of this analysis indicated
that the Poplar Creek Interceptor needed additional capacity to
service developing areas without including projected flows from
the Northeast Sector Planning Area or the Sears site.
Recommended improvements to the Poplar Creek Interceptor as a
result of the previous study are summarized in Table 1.
Alternative 1:
Alternative 1 would provide sanitary sewer service to the
Northeast Planning Area through construction of approximately
6,100 lineal feet of gravity sanitary sewer, 14,700 lineal feet
of forced main, and two pump stations. Wastewater would be
collected and conveyed east along Golf Road (Route 58) from
approximately the Elgin Joliet and Eastern Railroad to the
Public Service Company of Northern Illinois right-of-way, south
along the Public Service Company of Northern Illinois right-of-
way and Lovell Road from Golf Road to the MWRDGC interceptor
adjacent to the Milwaukee Railroad that is tributary to the
South Fox River Water Reclamation Plant. The preliminary
construction cost to serve the Northeast Sector Planning Area
through implementation of Alternative 1 ranges from $2.8
million to $4.0 million and is summarized in Table 2.
Mr. Larry Rice
June 26 , 1991
Page Three
Alternative 1 could be modified to incorporate wastewater
produced by the Sears site by increasing the size of the
improvements discussed above and constructing approximately
8,000 lineal feet of gravity sanitary sewer from along Poplar
Creek and the EJ&E Railroad from the Northwest Tollway (I-90)
to Golf Road. Preliminary construction costs to provide
sanitary service to both the Northeast Sector Planning Area and
the Sears site through implementation of Alternative 1 ranges
from $5.5 million to $6.7 million and are summarized in Table
3. Preliminary locations for the improvement included in
Alternative 1 are shown on Exhibit 2.
It is anticipated that Alternative 1 would be constructed in
two phases. Phase I would consist of the facilities needed to
direct initial flows into the existing Poplar Creek Interceptor
at approximately the intersection of Bode Road and Public
Service Company of Northern Illinois right-of-way. Phase II
would involve construction of a pump station and force main to
direct flows from the Northeast Area and the Sears site away
from the Poplar Creek Interceptor to the 84-inch MWRDGC
interceptor.
It should be noted that the timing for implementation of Phase
II is dependent on how quickly the Northeast Sector Planning
Area and Sears site develop. In addition, improvements to the
Poplar Creek Interceptor may still be required to serve other
development areas.
Alternative 2:
Alternative 2 would provide sanitary sewer service to the
Northeast Sector Planning Area through construction of
approximately 23,400 linear feet of gravity sanitary sewer,
3 ,200 linear feet of force main and one pump station. Proposed
improvements north of approximately the intersection of Bode
Road and the Public Service Company of Norther Illinois right-
of-way would be identical to those presented in Alternative 1.
Improvements located north of Bode Road Northern Illinois
right-of-way would consist of approximately 17, 300 linear feet
of sanitary relief sewer constructed adjacent to the existing
Poplar Creek Interceptor from Bode Road to the South Fox River
Water Reclamation Plant. Preliminary construction costs to
provide service to the Northeast Sector Planning Area range
from $5.2 million to $7.0 million and are summarized in
Table 4.
Mr. Larry Rice
June 26, 1991
Page Four
Alternative 2 could be modified to include wastewater generated
by the Sears site by increasing the size of the Alternative 2
improvements discussed above and constructing the 8,000 lineal
feet of gravity sanitary sewer along the EJ& E Railroad from
the Northwest Tollway to Golf Road as discussed in
Alternative 1. Preliminary construction costs to provide
service to both the Northeast Sector Planning Area and the
Sears site through implementation of Alternative 2 ranges from
$6.8 million to $8.9 million and are summarized on Table 5.
Preliminary locations of improvements included in Alternative 2
are shown on Exhibit 3 .
Alternative 2 could also be constructed in two phases. Phase I
would be the same as Phase I for Alternative 1. In Alternative
2, Phase II would consist of constructing the interceptor
sewers that would roughly parallel the existing Poplar Creek
Interceptor. These parallel sewers would be sized to include
the flow rates from the other new growth areas as given in the
1989 Donohue report along with flows from the Northeast Area
and the Sears site.
The information presented herein is for the City's review. The
analysis of alternatives will be further developed in the final
report. We wish to express our appreciation for the excellent
cooperation received from City of Elgin personnel and look
forward to continuing a professional relationship.
Please advise if there are any questions.
Very truly yours,
RJN ENVIRONMENTAL ASSOCIATES, INC.
adejeZ_,-- ( . /(tZ
Matthew C. Berg, P.E.
Project Manager
MCB/oev
Table I
CITY OF ELGIN
NORTHEAST SECTOR WASTEINaEl INTERCEPTOR STIAY
SUMNART OF APRIL. 1909 0011O1.1UE REPORT
Required Construction
Length Diameter Capacity Cost
Interceptor Reach (feet) (inch) (mod) (S)
Gravity Sewer from Treatment Plant 5,300 27 8.0 $2,000,000
to Cemetery and Creek
Gravity Sewer from Cemetery and 2,900 24 4.4 5076,000
Creek to Kramer and Creek
Total 8,200 52,676,000
Table 2
CITY Of ELGIN
NORTHEAST SECTOR WASTEWATER INTERCEPTOR STLCY
ALTERNATIVE to
CONNECTION TO MRtOGC INTERCEPTOR
WITH OUT SEARS PROPERTY
Total Preliminary
Required Proposed Construction
Length Capacity Diameter Cost
Interceptor Reach (feet) (mgd) (inch) (S)
Force Main from 84-inch NWRDGC 11,500 7.0 16 $862,500 - $1,437,500
Interceptor to Pup Sta. No. 2
Pump Ste. No. 2 -- 7.0 -- $550,000 - $650,000
Gravity Sewer from Pup Ste. No. 2 3,500 7.0 30 5647,500 - $822,500
to Golf Road and Com. Ed. ROW
Gravity Sewer from Golf Road and 2,600 3.5 15 2221,000 - 3312,000
Cam. Ed. ROW to Ridge Line
Force Main from Ridge Line to 3,200 3.5 10 $208,000 - 3352,000
Rap Sta. No. 1
Ramp Ste. No. 1 -- 3.5 -- S350,000 - S450,000
Total 20,800 52,839,000 $4,024,000
Table 3
CITY OF ELGIN
NORTHEAST SECTOR WISTELATER INTERCEPTOR STUDY
ALTERNATIVE 18
CONNECTION TO NM= INTERCEPTOR
WITH SEARS PROPERTY
Total Preliminary
Required Proposed Construction
Length Capacity Diameter Cost
Interceptor Reach (feet) (apd) (inch) (S)
Force Rain from 84-inch MWRDGC 11,500 13.0 24 S1,667,500 - $1,897,500
Interceptor to Pump Sta. No. 2
Pump Ste. No. 2 -- 13.0 S900,000 - $1,000,000
Gravity Sewer from Pup Ste. No. 2 3,500 13.0 42 5875,000 - $1,134,000
to Golf Road and Cam. Ed. ROW
Gravity Sewer from Golf Road and 2,600 9.5 18 $234,000 - S325,000
Com. Ed. ROW to Ridge Line
Force Main from Ridge Line to 3,200 9.5 18 5240,000 - $400,000
Pup Ste. Mo. 1
Pump Ste. No. 1 -- 9.5 -- S700,000 - 5800,000
Gravity Sewer from Pup Ste. No. 1 8,000 6.0 24 5920,000 - $1,160,000
to NW Tottway and EJ&E Railroad
Total 28,800 $5,536,500 - 16,716,500
Table 4
CITY OF ELGIN
NORTHEAST SECTOR WASTEWATER INTERCEPTOR STUDY
ALTERNATIVE 2A
CONNECTION TO POPLAR CREEK INTERCEPTOR
WITH OUT SEARS PROPERTY
Total Existing Preliminary
Required Interceptor Proposed Construction
Length Capacity Capacity Diameter Cost
Interceptor Reach (feet) (mgd) (mgd) (inch) (S)
Gravity Sewer from Treatment Plant 5,300 26.6 9.7 42 $1,457,500 - $1,355,000
to Cemetery and Creek
Gravity Sewer from Cemetery and 2,900 21.5 9.7 42 5797,500 - $1,015,000
Creek to Kramer and Creek
Gravity Sewer from Kramer and 5,800 12.3 6.5 30 5986,000 - $1,392,000
Creek to Route 19 and Creek
Gravity Sewer from Route 19 and 3,300 10.3 2.4 30 $561,000 - 5792,000
Creek to Junction Chamber
Gravity Sewer from Junction Chamber 3,500 7.0 N/A 30 $647,500 - $322,500
to Golf Road and Com. Ed. ROY
Gravity Sewer from Golf Rood and 2,600 3.5 N/A 15 5221,000 - 5312,000
Com. Ed. ROW to Ridge Line
Force Main from Ridge Line to 3,200 3.5 N/A 10 5203,000 - S352,000
Pump Ste. No. 1
Pump Ste. No. 1 -- 3.5 N/A -- 5350,000 - $450,000
Total 26,600 $5,223,500• - $6,990,500
•
Table 5
CITY OF ELGIN
NORTHEAST SECTOR WASTEWATER INTERCEPTOR STRAY
ALTERNATIVE 28
CONNECTION TO POPLAR CREEK INTERCEPTOR
WITH SEARS PROPERTY
Total Existing Preliminary
Required Interceptor Proposed Construction
Length Capacity Capacity Diameter Cost
Interceptor Reach (feet) (■gd) (mgd) (inch) (5)
Gravity Sewer from Treatment Plant 5,300 32.8 9.7 48 $1,457,500 - $1,987,500
to Cemetery and Creek
Gravity Sewer from Cemetery and 2,900 27.7 9.7 48 2797,500 - $1,087,500
Creek to Kramer and Creek
Gravity Sewer from Kramer and 5,800 18.5 6.5 36 11,015,000 - $1,450,000
Creek to Route 19 and Creek
Gravity Sewer from Route 19 and 3,300 16.5 2.4 36 5577,500 - $825,000
Creek to Junction Chamber
Gravity Sewer from tinction Chamber 3,500 13.0 N/A 36 $612,500 - $375,000
to Golf Road and Cos. Ed. RW
Gravity Sewer from Golf Road and 2,600 9.5 N/A 18 SZ34,000 - 5325,000
Com. Ed. RW to Ridge Line
Force Main from Ridge Line to 3,200 9.5 N/A 18 5288,000 - $400,000
Pump Sta. No. 1
Pump Ste. No. 1 -- 9.5 N/A -- $700,000 - $800,000
Gravity Sewer from pump Ste. No. 1
to NW Tollway and EJ3E Railroad 8,000 6.0 N/A 24 $920,000 - $1,160,000
Total 34,600 56,602,000 - $8,910,000
Elm 11
rikk
j: Agenda Item No.
„fe,
June 21, 1991
TO: Mayor and Members of the City Council
FROM: Larry L. Rice, City Manager
SUBJECT: Status Report on Northeast Interceptor Program
The City Council recently authorized the contracting of
RJN Engineers to develop a routing and cost estimates for
extending the northeast interceptor to serve the proposed
Pasquinelli, et al, developments - including possible service
to the 1, 385 acre Sears/Hoffman Estates area north of the
Tollway. The engineering has now been essentially completed,
and the preliminary report will be submitted to the City
Council at your Committee of the Whole meeting this coming
Wednesday evening.
In the meantime I have been in discussions with the
various developers and with both Sears and Hoffman Estates
and will have further information on those discussions at
your meeting.
RECOMMENDATION
With the submittal of the engineering report and discus-
sions with the various parties, I will be proposing at meet-
ing time approval of a proposal to Sears/Hoffman Estates for
serving their properties based upon their proportionate share
of the cost of the northeast interceptor extension. I will
be reviewing at that time the reasons why I believe it is in
the City's interest to make this proposal .
4110”
AP
Larry L. w7-ice, Ci Manager
LLR:amp