HomeMy WebLinkAboutContracts & Agreements_259-2006_CCv0001.pdf AGREEMENT TO PERFORM PROFESSIONAL ENGINEERING SERVICES
FOR INITIAL DISTRIBUTION SYSTEM EVALUATION AND PRELIMINARY DESIGN
REPORT
This agreement for consulting services ("Agreement")is made and entered into this
21 st day of November, 2006 ("Effective Date"), by and between the City of Redlands, a
municipal corporation ("City") and Carollo Engineers ("Consultant") who are sometimes
individually referred to herein as a "Party" and together, as the "Parties."
In consideration of the mutual promises contained herein, City and Consultant agree
as follows:
ARTICLE 1 - ENGAGEMENT OF CONSULTANT
1.1 City hereby engages Consultant to perform professional engineering services for
preparation of an Initial Distribution System Evaluation and Preliminary Design
Report (the "Services").
1.2 The Services shall be performed by Consultant in a professional manner, and
Consultant represents that it has the skill and the professional expertise necessary
to provide the Services to City at a level of competency presently maintained by
other practicing professional consultants in the industry providing like and similar
types of Services.
ARTICLE 2 - SERVICES OF CONSULTANT
2.1 The Services which Consultant shall perform are more particularly described in
Attachment 'A" entitled "Scope of Services," which is attached hereto and
incorporated herein by this reference.
2.2 Consultant shall comply with all applicable Federal, State and local laws and
regulations in the performance of this Agreement including, but not limited to, the
Americans with Disabilities Act, the Fair Employment and Housing, Ac- and
prevailing wage laws commencing at Labor Code section 1770 et seq. and non-
discrimination laws including the Americans with Disabilities Act. Pursuant to Labor
Code section 1773.2, copies of the prevailing rates of per them wages as
determined by the Director of the California Department of Industrial Relations for
each craft, classification, or type of worker associated with the performance of the
Services are on file at the City of Redlands office of the Public Works Department,
Civic Center, 35 Cajon Street, Suite 222 (P.O. Box 3005 mailing), Redlands,
California 92373.
2.3 Consultant acknowledges that if it violates the Labor Code provisions relating to
prevailing wage, that City may enforce those provisions by issuing a notice of the
withholding of contract payments to Consultant pursuant to Labor Code section
1771.6.
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2.4 If Consultant executes an agreement with a subcontractor to perform any of the
Services, Consultant shall comply with Labor Code sections 1775 and 1777.7, and
shall provide the subcontractor with copies of the provisions of Labor Code sections
1771, 1775, 1776, 1777.5, 1813 and 1815. Consultant acknowledges that the
statutory provisions imposing penalties for the failure to comply with state wage and
hour laws and to pay prevailing wages may be enforced by City pursuant to Labor
Code sections 1775 and 1813.
2.5 Consultant and its subcontractors shall comply with the provisions of Labor Code
section 1776 regarding payroll records' maintenance, certifications, retention and
inspection.
2.6 Consultant acknowledges that eight (8) hours constitutes a legal day_s work
pursuant to Labor Code section 1810.
2.7 If applicable, Consultant shall comply with the provisions of Labor Code section
1777.5 relating to apprenticeships, and Labor Code sections 1771, 1775, 1776,
1777.5, 1813 and 1815.
ARTICLE 3 - RESPONSIBILITIES OF CITY
3.1 City shall make available to Consultant information in its possession that may assist
Consultant in performing the Services.
3.2 City will make reasonable provision for Consultant to enter upon City-owned
property, as required by Consultant, to perform the Services.
3.3 City designates Greg Gage as City's representative with respect to performance of
the Services, and such person shall have the authority to transmit instructions,
receive information, interpret and define City's policies and decisions with respect to
performance of the Services.
ARTICLE 4 - PERFORMANCE OF SERVICES
4.1 Consultant shall perform the Services in a prompt and diligent manner and in
accordance with the schedule set forth in Attachment T," entitled " Project
Schedule."
4.2 At any time during the term of this Agreement, City may request that Consultant
perform Extra Services. As used herein, "Extra Services"means any work which is
determined necessary by City for the proper completion of the project or work for
which the Services are being performed, but which the Parties did not reasonably
anticipate would be necessary at the time of execution of this Agreement. Provided
the Extra Work does not exceed twenty percent (20%) of the compensation to be
paid by City to Consultant for the Services, such Extra Work may be agreed to by
the Parties, by written amendment to this Agreement, executed by City's City
Manager. Consultant shall not perform, nor be compensated for, Extra Work
without such written authorization from City.
ARTICLE 5 - PAYMENTS.TO CONSULTANT
5.1 The total compensation for Consultant's performance of the Services shall not
exceed the amount of two hundred ten thousand four hundred eighty two dollars
($210,482). City shall pay Consultant on a time and materials basis up to the not to
exceed amount, in accordance with Attachment "C" entitled "Project Costs, and
based upon the hourly rates shown in Attachment "D," entitled "Rate Schedule."
Both Exhibits "C" and "D" are attached hereto and incorporated herein by this
reference.
5.2 Consultant shall submit monthly invoices to City describing the work performed
during the preceding month. Consultant's invoices shall include a brief description
of the Services performed, the dates the Services were performed, the number of
hours spent and by whom, and a description of reimbursable expenses, if any. City
shall pay Consultant no later than thirty(30)days after receipt and approval by City
of Consultant's invoice, provided the Services reflected in the invoice were
performed to the reasonable satisfaction of City in accordance with the terms of this
Agreement, provided that the number of hours of Services set forth in the invoice
reflect the amount of time ordinarily expended for such Services by members of the
profession currently practicing in the same locality under similar conditions, and
provided further that all expenses, rates and other information set forth in the
invoice are consistent with the terms and conditions of the Agreement.
5.3 All notices shall be given in writing by personal delivery or by mail. Notices sent by
mail should be addressed as follows:
C Consultant
Greg Gage George Beliew
Municipal Utilities Department Carollo Engineers
City of Redlands 225 W. Hospitality Lane
35 Cajon Street, Suite 15A Suite 212
PO Box 3005 (mailing) San Bernardino, CA
Redlands, CA 92373
When so addressed, such notices shall be deemed given upon deposit in the United
States Mail. Changes may be made in the names and addresses of the person to who
notices and payments are to be given by giving notice pursuant to this section 5.3.
ARTICLE 6 - INSURANCE AND INDEMNIFICATION
6.1 All insurance required by this Agreement shall be maintained by Consultant for the
duration of its performance of the Services. Consultant shall not perform any
Services unless and until all required insurance listed below is obtained by
Consultant. Consultant shall provide City with certificates of insurance and
endorsements evidencing such insurance prior to commencement of the Services.
All insurance policies shall include a provision prohibiting cancellation of the policy
except upon thirty (30) days prior written notice to City.
6.2 Workers' Compensation and Employer's Liability.
A. Consultant shall secure and maintain Worker's Compensation and
Employer's Liability insurance throughout the duration of this Agreement in
accordance with the laws of the State of California, with an insurance carrier
acceptable to City.
B. Consultant expressly waives all rights to subrogation against City, its elected
officials, officers and employees for losses arising from work performed by
Consultant for City by expressly waiving Consultant's immunity for injuries to
Consultant's employees and agrees that the obligation to indemnify, defend and
hold harmless provided for in this Agreement extends to any claim brought by or on
behalf of any employee of Consultant. This waiver is mutually negotiated by the
Parties. This waiver shall not apply to any damage resulting from the sole
negligence of City, its employees or agents. To the extent any of the damages
referenced herein were caused by or resulted from the concurrent negligence of
City, its agents or employees, the obligations provided herein to indemnify, defend
and hold harmless are valid and enforceable only to the extent of the negligence of
Consultant, its officers, agents and employees.
6.3 Hold Harmless and Indemnification. Consultant shall defend, indemnify and hold
harmless City and its elected officials, employees and agents from and against any
and all claims, losses or liability, including attorneys fees, arising from injury or
death to persons or damage to property occasioned by Consultant's and its
officers', employees' and agents' sole negligent acts or omissions in performing the
Services.
6.4 Assignment. Consultant is expressly prohibited from assigning any of the Services
without the express prior written consent of City. In the event of agreement by the
Parties to assign a portion of the Services, Consultant shall add the assignee as an
additional insured and provide City with the insurance endorsements required by
this Agreement prior to the performance of any Services by the assignee.
Assignment does not include printing or other customary reimbursable expenses
that may be provided for in this Agreement.
6.5 Comprehensive General Liability Insurance. Consultant shall secure and maintain
in force throughout the term of this Agreement comprehensive general liability
insurance with carriers acceptable to City. Minimum coverage of One Million Dollars
($1,000,000) per occurrence and Two Million Dollars ($2,000,000) aggregate for
public liability, property damage and personal injury is required. City shall be named
as an additional insured. Such insurance shall be primary and non-contributing to
any insurance or self-insurance maintained by City.
6.6 Professional Liability Insurance. Consultant shall secure and maintain professional
liability insurance throughout the term of this Agreement in the amount of One
Million Dollars ($1,000,000) per claim made.
6.7 Business Auto Liability Insurance. Consultant shall have business auto liability
coverage, with minimum limits of One Million Dollars ($1,000,000) per occurrence,
combined single limit for bodily injury liability and property damage liability. This
coverage shall include all Consultant owned vehicles used in connection with
Consultant's provision of the Services, hired and non-owned vehicles, and
employee non-ownership vehicles. Such insurance shall be primary and non-
contributing to any insurance or self insurance maintained by City. City shall be
named as an additional insured.
ARTICLE 7 - CONFLICTS OF INTEREST
7.1 Consultant covenants and represents that it does not have any investment or
interest in real property and shall not acquire any interest, direct or indirect, in the
geographical area covered by this Agreement or any other source of income,
interest in real property or investment which would be affected in any manner or
degree by the performance of Consultant's Services. Consultant further covenants
and represents that in the performance of its duties hereunder, no person having
any such interest shall perform any Services under this Agreement.
7.2 Consultant agrees it is not a designated employee within the meaning of the
Political Reform Act because Consultant:
A. Does not make or participate in:
(i) the making or any governmental decisions regarding approval of a
rate, rule or regulation, or the adoption or enforcement of laws;
(ii) the issuance, denial, suspension or revocation of permits, licenses,
applications, certifications, approvals, orders or similar authorizations
or entitlements;
(iii) authorizing City to enter into, modify or renew a contract
{iv) granting City approval to a contract that requires City approval and to
which City is a party, or to the specifications for such a contract,
(v) granting City approval to a plan, design, report, study or similar item;
(vi) Adopting, or granting City approval of, policies, standards or
guidelines for City or for any subdivision thereof.
B. Does not serve in a staff capacity with City and in that capacity participate in
making a governmental decision or otherwise perform the same or substantially all
the same duties for City that would otherwise be performed by an individual holding
a position specified in City's Conflict of Interest Code under Government Code
section 87302.
7.3 In the event City officially determines that Consultant must disclose its financial
interests by completing and filing a Fair Political Practices Commission Form 700,
Statement of Economic Interests, Consultant shall file the subject Forrn 700 with the
City Clerk's office pursuant to the written instructions provided by the Office of the
City Clerk.
ARTICLE 8 - GENE L CONSIDERATIONS
8.1 Attorneys' Fees. In the event any action is commenced to enforce or interpret any
of the terms or conditions of this Agreement the prevailing Party shall, in addition to
any costs and other relief, be entitled to the recovery of its reasonable attorneys'
fees, including fees for the use of in-house counsel of the Parties.
8.2 Prohibition Against Assignment. Consultant shall not assign any of the Services,
except with the prior written approval of City and in strict compliance with the terms,
and conditions of this Agreement.
8.3 Documents and Records. All documents, records, drawings, designs, cost
estimates, electronic data files, databases and other documents developed by
Consultant in connection with its performance of the Services, and any copyright
interest in such documents, shall become the property of City and shall be
delivered to City upon completion of the Services, or upon the request of City. Any
reuse of such documents, and any use of incomplete documents, shall be at City-S
sole risk.
8.4 Independent Contractor Status. Consultant is for all purposes under this Agreement
an independent contractor and should perform the Services as an independent
contractor. Neither City nor any of its agents shall have control over the conduct of
Consultant or any of Consultant's employees, except as herein set forth.
Consultant shall supply all tools and instrumentalities required to perform the
Services. All personnel employed by Consultant are for its account only, and in no
event shall Consultant or any personnel retained by it be deemed to have been
employed by City or engaged by City for the account of, or on behalf of City.
Consultant shall have no authority, express or implied, to act on behalf of City in any
capacity whatsoever as an agent, nor shall Consultant have any authority, express
or implied, to bind City to any obligation,
8.5 Termination.
A. Unless earlier terminated, as provided for below, this Agreement shall
terminate upon completion and acceptance of the Services by City.
B. This Agreement may be terminated by City, in its sole discretion, by providing
thirty (30) business days prior written notice to Consultant (delivered by certified
mail, return receipt requested) of City's intent to terminate.
C. If this Agreement is terminated by City, an adjustment to Consultant's
compensation shall be made, but (1) no amount shall be allowed for anticipated
profit or unperformed services, and (2) any payment due Consultant at the time of
termination may be adjusted to the extent of any additional costs to City occasioned
by any default by Consultant.
D. Upon receipt of a termination notice, Consultant shall immediately
discontinue its provisions of the Services and, within five (5)days of the date of the
termination notice, deliver or otherwise make available to City, copies (in both hard
copy and electronic form, where applicable) of any data, design calculations,
drawings, specifications, reports, estimates, summaries and such other information
and materials as may have been accumulated by Consultant in performing the
Services. Consultant shall be compensated on a pro-rata basis for Services
completed up to the date of termination.
8.6 Books and Records. Consultant shall maintain any and all books, ledgers, invoices,
accounts and all other records and documents evidencing costs and expenses
related to the Services for a period of three (3) years, or for any longer period
required by law, from the date of final payment to Consultant pursuant to this
Agreement. Such books shall be available at all reasonable times for examination
by City at the office of Consultant.
8.7 Entire Agreement/Amendment. This Agreement, including the Exhibits incorporated
herein by reference, represents the entire agreement and understanding between
the Parties as to the matters contained herein, and any prior negotiations, written
proposals or verbal agreements relating to such matters are superseded by this
Agreement. Any amendment to this Agreement shall be in writing,approved by City
and signed by City and Consultant.
8.8 Governing Law. This Agreement shall be governed by and construed in accordance
with the laws of the State of California.
8.9 Severability. If one or more of the sentences, clauses, paragraphs or sections
contained in this Agreement is declared invalid, void or unenforceable by a court of
competent jurisdiction, the same shall be deemed severable from the remainder of
this Agreement and shall not affect, impair or invalidate any of the remaining
sentences, clauses, paragraphs or sections contained herein, unless to do so would
deprive a Party of a material benefit of its bargain under this Agreement.
IN WITNESS WHEREOF, duly authorized representatives of the City and
Consultant have signed in confirmation of this Agreement.
CITY OF REDLANDS CAROLLO ENGINEERS
By:
By-
i Harrison, Mayor
Attest,
City_C36rk 61
ATTACHMENT A
City of Redlands
Hinckley Water Treatment Plant
Treatment Optimization and Regulatory Compliance
Preliminary Design Report
and
Preparation of Initial Distribution System Evaluation
(IDSE) Plan
SCOPE OF SERVICES
INTRODUCTION
The primary purpose of the Preliminary Design Report will be presented as follows:
• Identify upgrades required for Hinckley Water Treatment Plant to meet regulatory
compliance
• Identify upgrades to allow the operations staff to maximize use of both Santa Ana River
water and State Project water at the existing rating of 12-mgd design capacity.
• Recommend upgrades to the plant that will be required for operation to limit the
formation of disinfection by-products (DBP) to meet the current and recently
promulgated regulations. More specifically, comply with Stage 1 and Stage 2
Disinfectants and Disinfection By-products Rules (Stage 1 DBP and Stage 2 DBP). The
Stage 2 DBP builds on existing regulations by requiring water systems to meet DBP
maximum contaminant levels (MCL) at each monitoring site in the distribution system to
better protect public health. For combined distribution systems serving between 50,000
and 99,999, the Standard Monitoring Plan due date is April 1, 2007.
The study will focus on the filter performance for removal of turbidity and DBP precursors and
will provide a prioritized list of actions for implementation. A budget level construction cost will
be provided for each action item.
The overall specific study objectives will be:
1. Address the need to rehabilitate the existing filters and address filter-to-waste (FTVV)
limitation of the existing filters. On similar projects Department of Health Services (DHS)
has indicated that FTW would be required when filters are rehabilitated,
2. Identify upgrades that will limit the formation of DBPs (specifically formation of THMs
when operating on State Project Water(SPW)and when using free chlorine as a
residual disinfectant.
3. Address the overall flash mixing, flocculation, sedimentation and filtration issues (spikes
in turbidity) particularly observed when operating on Santa Ana River (SAR) water,
4. Address the filter backwash recovery and recycle regulation issue.
5. Optimize the plant to maximize the use of lower cost SAR water,
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Tasks 1 through 6 provide the Scope of Services for the Preliminary Design Report. Tasks 7
through 10 provide the Scope of Services for the Initial Distribution System Evaluation (IDSE)
for compliance with the Stage 2 Disinfectants and Disinfection By-Products Rule.
TASK 1 - PREPARATION OF PROCESS OPTIMIZATION CRITERIA
Objective: This task establishes the basis for all work in subsequent tasks to address the
project objectives.
1. Raw Water Quality
a. Define the quality of the raw water sources - State Project Water (SPW) and Santa Ana
River(SAR)Water individually and as a mixture. Define water quality characteristics,
including physical, chemical and microbiological parameters; seasonal water quality
variations of both water qualities will be examined.
b. A particular emphasis will be to identify and evaluate disinfection by-product precursors
in both water sources from readily available data. Identify additional sampling needs, if
necessary, to determine potential of the water to form disinfection by-products.
2. Treated Water Quality Requirements
a. Review Federal and State Drinking Water Regulations, current and proposed that could
impact treatment process selection.
b. Define the Treated Water Quality Goals
3. Treatment Plant Capacity
a. The stated goal is to determine modifications required to meet a treatment plant capacity
of each source water and blend based at 12-mgd plant. Basis of Process Optimization.
b. Define preliminary design criteria, desired degree of reliability, and operational
procedures (degree of automation), etc. and summarize in table format. Include
chemical storage and handling requirements and laboratory needs
Deliverable: Draft and Final Technical Memorandum No. Idefining the Preliminary Design
Criteria to improve performance at 12-mgd.
TASK 2 - OPTIMIZATION OF EXISTING PLANT
Objective: This task will provide recommendations to upgrade the plant to maximize the use of
SAR water, and will provide information to meet objectives 1,3,4 and 5. It will begin with an
evaluation of the existing treatment plant and then identify processes/modifications needed to
optimize plant performance with SAR water.
1. Develop and evaluate recommended improvements to make the plant more robust so that it
is able to operate at full capacity during elevated turbidity events that tend to occur when
operating on SAR water,
Upgrades are required in order to make the plant more robust and to comply with current
regulations. Evaluate the following unit operations and develop cost estimates for each
modification identified:
a. Flash Mixing: Upgrade the existing in-line static mixer with a pump diffusion flash mix
configuration to achieve optimal coagulation.
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b. Flocculation: Flocculator design has been modernized by meeting more stringent design
requirements. Upgrade the original units with flocculators that comply with the current
design criteria.
c. Chemical Feed: Evaluate alternative chemical feed location, dosage rates, and selected
coagulant.
d. Sedimentation: Evaluate the utilization of the existing sedimentation basins by installing
plate settlers in the existing basins. The current particulate floc formed through the
addition of alum and cationic polymer does not consistently settle properly, and under
some conditions stays suspended in the water. Optimization of the sedimentation
process could improve the removal of DBP precursors through the practice of enhanced
coagulation. This should further utilize the existing sedimentation basins and provide
additional robustness to the WTP to handle changing levels of influent turbidity.
e. Filtration: Modifications to consider that would increase rated capacity, including the
cleaning of the underdrain nozzles, whole replacement of the underdrain system,
backwash improvements, and increasing the depth of the filter beds.
f. Waste wash water recovery: Identify improvements for compliance with the Filter
Backwash Recycle Rule
g. Filter to Waste: Evaluate the use of PLC programming to simulate a slow rinse cycle and
"filter to waste" option. Evaluate installation of UV disinfection as a compliance
alternative for the original configuration filter to waste issue. Evaluation will focus on
alternatives that do not require re-construction of the filters or replacement of the existing
butterfly valves.
h. Solids Handling: Evaluate two alternatives to handle the increase in solids handling and
disposal.
i. Automation: Evaluate automation of the treatment processes where appropriate for each
of these improvements.
2. Compare the cost of providing upgrades to the conventional treatment plant processes so
they could treat anticipated SAR water turbidity events at 12-mgd with the cost of the
alternative approach of switching the plant off during high turbidity events (perhaps 20-days
per year) and the cost of purchasing other water sources to meet the City's demands.
a. Based on cost estimates, identify upgrades for the plant processes to treat typical SAR
water quality variation at 12-mgd. In addition, determine actual treatment capacity of the
existing facilities treating SAR water quality variations (it is anticipated to be less that 12-
mgd)
b. Determine the additional cost for the upgrade project for the plant to treat 12-mgd using
SAR water quality compared with actual treatment capacity of the existing plant.
Consider the cost to the City of using other sources of water to make up the period of
time when the plant cannot treat 12-mgd. It is anticipated to range between 20 and 30
days per year,
c. Determine the most cost effective approach for maximizing the use of SAR water.
Deliverable: Draft and Final Technical Memorandum No. 2- Evaluation of the most Cost
Effective Approach to Maximize the use of SAR water.
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TASK 3 - MINIMIZING DBP FORMATION WHILE OPERATING ON SPW
Objective:This task will address the second project objective, which is to operate for an
extended period of time on SPW without violating the Stage 1 and Stage 2 DBPRs.
1. Determine necessary plant modifications to allow it to operate at 12-mgd capacity on SPW
for a continuous period of 6-months and meet Stage 1 and Stage 2 DBPRs. The evaluation
criteria will be based on the compliance requirements of both rules, i.e., running annual
average (RAA) of<80 pg/L for THM4 and <60 pg/L for HAA5 (according to the Stage 1
DBPR); and locational running annual averages (LRAAs) of<80 pg/L for THM4 and <60
pg/L for HAA5 at each distribution system sampling locations (Stage 2 DBPR).
In order to assist with this task, the City will provide THM4 and HAA5 data including an
updated version of the map that shows the THM4 and HAA5 concentrations measured in
various parts of the distribution system.
The overall approach will consist of the following tasks to be conducted sequentially:
identification of the DBP precursors; identify modifications to the coagulation/clarification
processes; identify the optimum locations and doses for chlorine addition; and finally,
examining the effect of the Agate Reservoir and distribution system operation on DBP
formation. To accomplish these objectives, the following tasks will be carried out:
a. Identify the presence of DBP precursors in SPW and SAR water, namely total
organic carbon (TOC), dissolved organic carbon (DOC), UV absorbance, and
bromide ion. Use existing test results of the SAR water in this task for comparison.
b. Jar tests to determine the optimum coagulation, flocculation and sedimentation
conditions that would minimize DBP formation. Removal of TOC, DOC, UV
absorbance and bromide will be measured for each condition tested. THM and HAA
formation potential will be simulated in bottles using free chlorine at doses
representative of those used at Hinckley WTP. THM and HAA speciation will also be
analyzed since the brominated species may represent the greatest proportion of the
DSPs analyzed in SPW at times. Note there is no cost effective way to effectively
remove bromide.
(The number of test to evaluate options could vary depending upon the
seasonal variations of the raw water. For the purpose of this scope of work
and in the interest of time, it has been assumed that jar testing would be
carried out at one point of the year. Potential seasonal variations will be
estimated based on historical water quality data obtained from the City or
possibly MWD if available. Seasonal variation is important to consider. Should
the City require more defined data, additional services could provide that jar
testing be conducted four times during the year to capture seasonal variation
in water quality which would capture changes in NOM concentration and
composition. This could be significant in SPW and greatly affect DBP
formation. Also, additional services could provide spiking bromide in some
samples to examine extreme cases of bromide concentrations can be included
in these tests. Carollo will use existing data and reports to minimize
requirements for additional testing unless requested by the City.
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C. Once the optimized coagulation,`flocculation and sedimentation processes have
been identified, recommend the preferred locations for chlorine addition that would
minimize DBP formation.
d. Examine different chlorine doses. The clarification and filtration processes will be
simulated at the bench scale.
e. Evaluate the effect on DBP formation of using the 3.0-MG Agate Reservoir (located
1,000 feet from the plant) as the clearwell for the WTP. Batch incubations in bottles
will be carried out to estimate these effects using the tracer studies previously
conducted as a basis for the contact time. To maximize project resources, these
tests can be conducted concurrently with Task 3.d above. If the simulated reservoir
shows the potential to significantly increase DBP formation to critical levels, then
improvements will be proposed such as modifications to the Agate Reservoir to
eliminate dead spaces, eliminate short-circuiting, improve mixing, and reduce water-
age, etc.
f. Distribution system operation will be examined with the aim of limiting DBP
formation. Recommendations may include conducting pipe flushing, and loop
distribution system piping where appropriate.
Deliverable: Draft and final Technical Memorandum No. 3: Recommendations for optimized
clarification process, chlorine dose and application point, reservoir modification,
and distribution system operation, to limit DBP formation while using SPW
TASK 4 - IDENTIFICATION OF THE COMBINED PROJECT FOR
COMPLIANCE AND PLANT OPTIMIZATION
Objective: This task combines the findings of Tasks 2 and 3 to determine what common plant
modifications exist in order to (a) maximize the treatment of SAR water and(b) enable SPW to
be treated for a long period of time without compromising DBP formation;and determine the
combined project cost.
1. Comparison of plant upgrade needs:
a. Compare the plant modifications identified in Task 2 with those identified in Task 3.
b. Determine which plant modifications are common to treating both types of raw water.
c. Determine the preliminary budgetary capital cost estimate for the common plant
modification components.
d. Determine the additional budgetary costs for needed modifications outside the common
components.
2. Further develop the combined treatment flow scheme and refine the cost estimate.
a. Establish appropriate Process Flow Diagrams.
b. Confirm design criteria.
c. Evaluate SCADA system for automation improvements where modifications are
made to the WTP.
d. Develop budgetary construction cost, design budget cost, and construction
management budget cost estimate complete with suggested project schedule.
e. Identify suitable phasing of work.
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3. Develop Combined Project Technical Memorandum.
Deliverable: Draft and Final Preliminary Design Report consisting of Technical Memorandum
presenting the process treatment improvements and more detailed description of the selected
improvements with an updated budget cost estimate. Combine all previous TMs into this
document Include an Executive Summary to present highlights of the findings.
TASK 5 - PROJECT MEETINGS AND WORKSHOPS
Objective: To facilitate communication and collect appropriate opinions and expertise for
selecting and prioritizing the alternatives discussed in Task 2 for implementation.
1. First workshop will address Tasks 1 &2.
2. Second workshop will present Task 3 and address Task 4.
Deliverable: Meeting Minutes.
TASK 6 - COORDINATE WITH DHS
Objective: To facilitate communication and effectively obtain DHS approval for the construction
of the process improvements and means for complying with the DBPR and THM regulations.
1. Coordination with DHS will be required for both implementing process treatment
improvements and demonstrating compliance with Stage 1 and Stage 2 DBPRs. Assume
two meetings initially. Should DHS require additional meetings, we will present an estimate
for the added scope.
Deliverable: Meeting Minutes from the two workshops.
Assumptions:
The following assumptions were used in the development of this Scope of Work:
1 Assume, for the purposes of this study, that the Seven Oaks Dam will not result in any
long-term water quality impact on the SAR water. This assumption is made based on the
information that the federal government has indicated that they will address the current
Dam water quality issue.
2. The Agate reservoir will be considered as part of the treatment plant.
3. The City will be responsible for analysis of all parameters that cannot be measured
immediately onsite, i.e., THM4, HAAS, TOC, and DOC.
4. The City will provide laboratory space to conduct jar testing.
5. The City will provide chemicals (coagulant, coagulant aids, chlorine, and any others as
needed), so that the same chemicals as used at the WTP are used for the jar tests.
6. The City will provide historic THM4 and HAA data
7. The City will provide information regarding WTP operation, in terms of chemical
application points and doses.
8. The City will provide information regarding distribution system operation.
9. The City will conduct all laboratory test required of jar test samples and other identified
testing.
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TASK 7 -- SELECTION OF IDSE OPTION
The goal of this task is select the most suitable IDSE option for the City. During this task, the
City's distribution system hydraulic model will be examined in light of the model requirements
presented by the USEPA in the Stage 2 DBPR. If the model meets the requirements then it may
be possible to implement the System Specific Study (SSS) approach to determining the IDSE
sampling points.
If the model does not meet USEPA's minimum requirements, then the only choice will be the
Standard Monitoring Plan (SMP) approach. If the hydraulic model meets the minimum
requirements, then a cost evaluation will be conducted to compare the SMP and SSS-model
model approaches. The results will be presented the City and a decision will be made as to
which approach the City prefers to adopt.
A meeting will be held with City staff to answer any questions, and finalize the selection of the
IDSE approach. This meeting will also serve as kickoff meeting and as such, it will confirm
project expectations, and establish the lines of communication. It is also during the kickoff
meeting that we will present the list of data needed to prepare the IDSE Plan.
Task to be performed by the City:
• Make available City's distribution system hydraulic model for our review
• Attend the kickoff meeting.
TASK 8 - PREPARATION OF THE IDSE PLAN
The detailed scope of work will vary slightly depending upon whether the SMP approach or the
SSS-Model approach is selected. However, the engineering effort will be the same. For
completeness we have included tasks for each. Tasks 8A, 9A and 1 OA are for the situation
where the SMP approach will be used. Tasks 813, 9B and 1 OB are for the situation where the
SSS-Model approach will be used.
Using the SMP Approach:
TASK 8A - COLLECT INFORMATION
The information necessary to prepare the IDSE Plan includes:
• Exact population served by the City.
• Number of service connections.
• Source water type.
• Disinfectant residual used.
• Map of the distribution system.
• Location, type and zone of influence of each entry point to the distribution system.
• Location and size of storage facilities and booster disinfection facilities.
• Hydraulic model of the distribution system.
• Changes in source, treatment, or distribution system conditions that may have
occurred in the last few years, if any.
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• Relevant studies that may have recently been conducted.
• Sampling locations and schedule for Stage 1 DBPR compliance and Total Coliform
j Rule (TCR) compliance.
• Water quality data for the past few years, including disinfectant residual, temperature,
PH, THM4, HAAS, HPC, and others if available.
Additional data may be required, as needed.
Task to be performed by the City:
• Provide necessary information in accordance with the schedule that will be agreed
upon during the kickoff meeting.
TASK 9A - DETERMINE SMP SAMPLING SITES
During this task, Carollo will use the data collected during Task 2, as well as water age
estimates obtained from the hydraulic model, and propose Preliminary Sites. The number of
Preliminary Sites will cover the entire distribution system and be greater than the required
number of SMP sampling sites, or Final SMP Sites. From the Preliminary Sites, we will propose
a list of Final SMP Sites. As required by the Stage 2 DBPR, locations will be determined to
capture the following types: high THM4 (5 sites are required), high HAA5 (4 sites are required),
average residence time (4 sites are required), and near entry point (3 sites are required).
Operational and sampling concerns will be taken into account when selecting sampling
locations. A distribution system map showing the SMP monitoring locations will be prepared
using existing City model. We will conduct the review of Preliminary and Final SMP sites in a
meeting.
Tasks to be performed by City:
• Review and comment on the list of Preliminary and Final SMP Sites.
• Attend the review meeting.
TASK I OA- PREPARE IDSE PLAN
The IDSE Plan will be prepared and will include all necessary background information about the
SMP and the City, the Final SMP Sites and justification for their selection, sampling frequency
and dates over the one-year sampling period, and required distribution system schematic. With
regard to the distribution system schematic required with the IDSE Plan package, DHS
recommends that two schematics be prepared: a simplified version without information that
could identify the City and that will be submitted electronically along the IDSE Plan, and a
detailed one to be hand delivered directly to your DHS representative for security reasons. DHS
encourages you to use this face-to-face period with your DHS representative to present your
IDSE Plan at the same time.
A draft IDSE Plan will first be submitted to the City. Comments from City's staff will be received
and incorporated in the final Plan. The Plan will meet the requirements of the USEPA, and will
be ready for electronic submission via the IDSE Tool software. Both hard and electronic copies
of the final IDSE Plan will be provided to the City. The DNS encourages all water utilities to
submit their IDSE Plan electronically using the IDSE tool. It is assumed that Carollo will be
submitting the Plan on your behalf.
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Task to be performed by the City:
• Review and comment on the Draft IDSE Plan.
• Coordinate the meeting with the City's DHS representative.
' US%rtq SSS-Model Approach
TASK 8B - EXAMINE EXISTING DATA AND DETERMINE PEAK HISTORICAL
MONTH
Obtain the following information:
• Historical water quality data, including DBP concentrations, disinfectant residuals and
any other water quality parameters collected from the City's distribution system.
• System's information, such as:
• Exact population served by the City.
• Number of service connections.
• Source water type.
• Disinfectant residual used.
• Map of the distribution system.
• Location, type and zone of influence of each entry point to the distribution system.
• Location and size of storage facilities and booster disinfection facilities.
• Changes in source, treatment, or distribution system conditions that may have occurred
in the last few years, if any.
• Relevant studies that may have recently been conducted.
• Existing sampling locations and frequency for Stage 1 DBPR and TCR compliance.
Additional data may be required, as needed.
Water quality data of importance for this task are water temperature and THM concentrations.
These data are used to determine the peak historical month of THM formation. According to the
USEPA, this is the month of peak historical THM concentration, or month of peak distribution
system water temperature if peak THM data are not available. The hydraulic model needs to be
calibrated during this peak historical month. As such, we will also review the model calibration
during task and conduct additional calibration, if required.
Task to be performed by the City:
• Provide necessary information by the deadline that will be agreed upon during the
kickoff meeting.
TASK 9B - OBTAIN INFORMATION NECESSARY FOR IDSE PLAN
During this task, we will conduct distribution system simulations to obtain the necessary data to
submit the IDSE Plan, as required by the USEPA. These simulations will include:
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Calculations of predicted tank levels versus measured tank levels for the storage
facility with the highest residence time in each pressure zone.
• Residence time calculations at the longest residence time storage facility in the
distribution system.
• Preliminary 24-hour average residence time predictions throughout the distribution
system.
The IDSE Plan also required specific information regarding the one round of sampling that will
be necessary. Carollo will develop this information during this task.
TASK 10B — PREPARE IDSE PLAN
All necessary information will be summarized in the IDSE Plan, including required distribution
system schematic. With regard to the distribution system schematic required with the IDSE Plan
package, DHS recommends that two schematics be prepared: a simplified version without
information that could identify the City and that will be submitted electronically along the IDSE
Plan, and a detailed one to be hand delivered directly to your DHS representative for security
reasons. DHS encourages you to use this face-to-face period with your DHS representative to
present your IDSE Plan at the same time.
A draft IDSE Plan will first be submitted to the City. Comments will be received and incorporated
in the final Plan. The Plan will meet the requirements of the USEPA, and will be ready for
electronic submission via the IDSE Tool software. Both hard and electronic copies of the final
IDSE Plan will be provided to the City. DHS encourages all water utilities to submit their IDSE
Plan electronically using this tool. We assume that Carollo will submit the Plan on your behalf.
Task to be performed by the City:
• Review and comment on the Draft IDSE Plan.
• Coordinate the meeting with the City's DHS representative.
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ATTACHMENT B
City of Redlands
Hinckley Water Treatment Plant
Treatment Optimization and Regulatory Compliance
Preliminary Design Report
and
Preparation of Initial Distribution System Evaluation
(IDSE) Plan
PROJECT SCHEDULE
Engineer shall commence work immediately following approval of the Scope of Work and
authorization from the City. Engineer has reviewed the project with City and agrees that the
following schedule presents a reasonable time frame in which to complete the work.
TASKS I - 6
Item Days Following
Notice To Proceed
1 Receive Notice To Proceed 0
2 Submit Draft Technical Memorandum(s) 120
3 Receive Comments from City 150
4 Submit Final Technical Memorandum 180
TASKS 7 - 10
Item Days Following
Notice To Proceed
1 Receive Notice To Proceed 0
2 Submit Draft IDSE Plan 90
3 Receive Comments from City 110
4 Submit Final IDSE Plan 130
Engineer and City mutually agree that they will work earnestly toward meeting the above
tentative schedule. Should the Scope of Services change or should problems arise during the
work period, which could affect the above schedule, it is understood that both Engineer and City
will develop a revised schedule to address such scope changes and problems. The costing
herein assumes that all work will be completed by May 1, 2007.
H:1Client',Rediands—SBO\Hinckley&IDSPATTACHMENT Brdoc B-1
ATTACHMENT C
City of Redlands
Hinckley Water Treatment Plant
Treatment Optimization and Regulatory Compliance
Preliminary Design Report
and
Preparation of Initial Distribution System Evaluation
(IDSE) Plan
PROJECT FEE
TASKS I - 6
Description Amount
LABOR COSTS
Engineering Labor:
915 hours @ $188/hour= $ 172,020
OTHER DIRECT COSTS(')
Computer Equipment (PECE) $ 7,780
Printing = 500
Mileage = 650
ODC Subtotal -$ 8,930
TOTAL $ 180,950
TASKS 7 - 10
Description Amount
LABOR COSTS
Engineering Labor:
148 hours @ $188/hour= $ 27.824
OTHER DIRECT COSTS(')
Computer Equipment (PECE) $ 1,258
Printing = 200
Mileage = 250
ODC Subtotal -$ 1,708
TOTAL $ 29,532
TOTAL COST $ 210,482
(1) Laboratory costs not included
H 1,CbentkRediands_S80Hnck1ey&IDSEIATTACHMENT C.doc C-1
ATTACHMENT D
j
City of Redlands
Hinckley Water Treatment Plant
Treatment Optimization and Regulatory Compliance
Preliminary Design Report
and
Preparation of Initial Distribution System Evaluation
(IDSE) Plan
CAROLLO ENGINEERS, PC
FEE SCHEDULE
As of March 1, 2006
California
Hourly Rate
Engineers/Scientists
Assistant Professional $115.00
Professional 150.00
Project Professional 180.00
Lead Project Professional 195.00
Senior Professional 215.00
Technicians
Technicians 90 00
Senior Technicians 130.00
Support Staff
Word Processing 1 Clerical 77.00
Project Equipment Communication Expense 8,50
(PECE) Per DL Hour
Other Direct Expenses
Travel and Subsistence at cost
Mileage .445/mile
Subconsultant cost + 10%
Other Direct Cost cost + 10%
Expert Witness Rate x 2.0
This fee schedule is subject to annual revisions due to labor adjustments.
H:1Clien#iBed;ends_SBO\Hinckley&[DSEIATTACHMENT D,doc
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