HomeMy WebLinkAboutContracts & Agreements_24-1981_CCv0001.pdf Jam. ES 1\4 . MONTGON4ERY, CONSUETING ENGINEERS, INC.
E55 East Walnut Street,Pasadena,California 91101/k2131 790-9141/k213) 681-4255
Caole Address: Montgomery Pasadena California Telex:67-5420
July 21, 1981
City of Redlands
Public Works Department
30 Cajon Street
Redlands, California 92373
Attention: Mr, David Garcia
Utilities Engineer
Subj ec t: Proposal for Furnishing Supplemental Engineering Services to the
1981 Redlands Water Master Plan Update
Gentlemen:
In accordance with your request, we are pleased to submit this proposal for
furnishing supplemental engineering services to the 1991 Redlands Water Master
Plan Update. We propose to accomplish the work in two tasks under the following
terms and conditions:
SCOPE OF WORK
TASK 1 - ECONOMIC EVALUATION OF ALTERNATIVES FOR
MEETING IMMEDIATE WATER SUPPLY NEEDS
1. Re-examine projected 1981-1985 water demands and peaking factors for
Redlands.
(a) Investigate current requirements based on high demands experienced
during the summer of 1981.
(b) Revise future water projections if necessary.
(c) Compare future water projections to the quantity of water available
from existing sources of supply and determine immediate needs.
2. Identify feasible alternatives for meeting future water requirements.
PLANNING . . RESEARCH . . . ENV I RON M ENTAL F N � I N E E R I N G
JAM. ESbL MCS N*rGobgEIMCoNSMTLNGENG114EERSINC 555 East Walnut Street,Pasadena,California 91101/(213)796-9141/(213)681-4255
City of Redlands -2- July zi, 1981
(a) These feasible alternatives must be able to be implemented by May,
1992.
(b) They shall include but not be limited to
0 denitrification of Highland Avenue Pumping Plant wells
0 denitrification of Texas Street wells
0 blending of high and low nitrate water in the system
0 removal of TCE at the Rees well
0 construction of new wells
0 any combination of the above alternatives.
3. Estimate capital and O&M costs of each feasible alternative.
(a) Rely as much as possible on previous work performed for the 1981
Master Plan update.
(b) Update costs wherever more current information is available.
4. Perform economic evaluation of potential sources of immediate additional
supply.
(a) Perform economic comparison over the next three years.
(b) Examine their potential for cost effective use after the three year
period.
(c) Qualitatively analyze the alternatives including such items as
reliability, time required to implement and relationship to long range
water supply needs.
5. Rank alternatives and recommend the most favorable alternative.
(a) Discuss the advantages and disadvantages of all alternatives.
(b) Meet with the City and present the results of Task 1.
TASK I[- EVALUATION OF HYDRAULIC PROBLEM IN ZONE 179750
Perform hydraulic analysis and field investigation of Zone 1.750 to determine
location and cause of reservoir operational problems.
1. Review existing land use and demand in Zone 1750.
i
3 hIES M ,gON'I'GOMEHXGOxsMTING ENGINEERS.INC 555 East Walnut Street,Pasadena,California 91101/(213)796-9141/(213)681-4255
City of Redlands -3- July 21, 1981
(a) Wherever possible, rely on information collected for the 1981 Master
Flan Update.
(b) Update this information where appropriate based on recent demand
experience.
2. Collect data on actual system operation in the summer of 1981, including
(a) the settings of the pressure reducing valves
(b) the elevations and fluctuation of reservoir dater levels
(c) the operation of booster pumping plants
(d) the operation of sources of supply that contribute flow to Zone 1750.
3. Model Zone 1750 on the computer.
Model Zone 1750 on the computer utilizing the JMM Linear II program. This
computer program would enable a more sophisticated analysis of Zone 1750 and
includes the operation of pressure reducing stations.
(a) Utilize data assembled for the 1975 and 1981 computer models as
much as possible.
(b) Establish the computer model such that the addition of other pressure
zones in the future is facilitated.
(c) Run model and examine the results for conformance with actual
system operation.
4. Install pressure recorders in Zone 1750.
(a) Determine the location, number, and duration of pressure recorder
measurements based on computer model results and discussions with
the City staff.
(b) Analyze pressure data collected.
5. Identification of hydraulic problem in system.
(a) Based on discussions with the City, determine whether a static
computer model, a dynamic computer model or some combination of
the two is needed to identify the problem areas.
(b) Based on discussions with the City and results of additional computer
analysis, relocate pressure recorders if necessary to identify the exact
location of the hydraulic problem.
JAMES MoN-rG0A&KRXCor4SL1LTn4G ENGI E: FSS.INC 555 East walnut Street,Pasadena.California 91101/(213)798-9141{(213)681-4255
City of Redlands -4- July 21, 1981
6. Recommend solutions to hydraulic problem.
(a) Describe problem and alternative solutions to the problem.
(b) Estimate costs and time to implement various solutions.
(c) Recommend the most appropriate solution.
(d) Discuss the recommendation with the City.
TASK M--WRITE A LETTER REPORT SUMMARING THE RESULTS AND
THE CONCLUSIONS OF THE STUDY
(a) Review results and conclusions of Tasks 1 and 2 with the City.
(b) Submit a final copy of a letter report to the City summarizing the
results and the conclusions of the study. This letter report shall serve
as an addendum to the 1981 Water System Master Plan Update.
B. CITY FURNISHED SERVICES
It is understood that the City will furnish all information concerning existing
facilities, recent production and consumption records, test results, and any other
data pertinent to this project. In addition, it is understood that the City will
make all arrangements and pay all costs required to install pressure recorders in
Zone 1750 for conducting the pressure survey. Special effort on our part, if
needed, to extract information from City records will be considered additional
services.
C. .FEES AND CONDITIONS FOR ENGINEERING SERVICES
1. Engineering services described in the Scope of Work are provided iii
accordance with the current schedule of Fees and, Conditions, a copy of
which is attached.
2. Based on our present knowledge of the work described, the total estimated
budget is $17,000. This amount will not be exceeded without prior
authorization by the City.
3. If at any time during the performance of Task 2, the solution to the
hydraulics problem in Zone 1750 is resolved to the City's satisfaction,
further work pertaining to this task will be terminated.
4. Work described for Task 1 and Task 2 would be completed. within 75 days
after acceptance of this proposal. Following review of results of the study
with the City, 30 copies of a letter report would be submitted within 15
days. Every effort mould be made to expediate this work due to the possible
need to construct the recommended facilities prior to the year 1982 peak
demand season.
•
T-jAMESKMoNirAaAIE=coNs=iNGFNGINEL'P—C.,INC 555Eas,'Walnut Street,Pasadena,California 91101/(213)796-9141/(213) 68I-4255
City of Redlands -5- July 21, 1981
If the above proposal meets with your approval, it may serve as the basis for
agreement by affi2dng the signatures in the spaces provided below.
Respectfully submitted,
JAMES M. MONTGOMERY,
CONSULTING ENGINEERS, INC.
By:
Terrance Hoeper, Piincipal Engineer
By: LP
Philip Gatsoulis, Vice President
ACCEPTED BY:
CITY OF REDLANDS
By: "
(M ayox)
Date:
ATTEST:
(City Clerk)'