City of Morgan Hill - Agreement for Construction of Joint Sewer InterceptorCOST SHARING AGREEMENT BETWEEN THE CITY OF GILROY AND THE
CITY OF MORGAN HILL FOR THE DESIGN AND THE CONSTRUCTION OF
PORTIONS OF THE JOINT SEWER INTERCEPTOR
This Cost Sharing Agreement ( "Agreement ") is made and entered into this 8th day
of October, 2013, by and between the City of Gilroy, California, a chartered municipal
corporation of the State of California ( "Gilroy'), and the City of Morgan Hill, California, a
general law municipal corporation of the State of California ( "Morgan Hill "), collectively
referred to herein as the "Parties" and sometimes individually as a "Party."
RECITALS
WHEREAS, there is an existing "Joint Sewer Interceptor" sewer trunk line that
begins at the southern end of Morgan Hill and terminates at the southernmost portion of
Gilroy, and which conveys wastewater flows from both Morgan Hill and Gilroy to the
wastewater treatment plant ( "WWTP ") operated by the South County Regional
Wastewater Authority ( "SCRWA "); and
WHEREAS, in order to meet existing and future demands and community service
needs of both Gilroy and Morgan Hill, SCRWA commissioned a Joint Sewer Trunk
Relief- Capacity Analysis Update for Segments 19 and 20, dated January 2, 2008 (the
"Capacity Analysis," attached hereto and incorporated herein as Exhibit A); and
WHEREAS, the Capacity Analysis recommended a new 42 -inch sanitary sewer
trunk, as defined in Table 4 of Exhibit A ( "42 -Inch Trunk "), to replace the existing Joint
Sewer Interceptor along Segments 19 and 20, in order to accommodate the flow
from Gilroy's existing 24 -Inch Trunk (defined below) and to mitigate flow deficiency in
the existing Joint Sewer Interceptor ( "Northerly Extension "); and
WHEREAS, the Capacity Analysis recommended a new 33 -inch sanitary sewer
trunk inside a 54 -inch casing crossing under State Route 152 ( "Highway' 152 ") to
mitigate flow deficiency in the existing Joint Sewer Interceptor ( "33 -Inch Trunk ") by
constructing a parallel relief trunk to Morgan Hill; and
WHEREAS, the existing 24 -inch Gilroy sewer- trunk ("24 -Inch Trunk "), which
parallels the existing Joint Sewer Interceptor along Segments 19 and 20 from Holloway
Road to the WWTP outfall ( "Southerly Extension "), as defined in Figure 2 of Exhibit A,
has deteriorated and is in need of replacement and, in addition, a portion of it was
recently damaged, such that Gilroy is relying on the Parties' participation in this
Agreement in order to abandon the 24 -Inch Trunk; and
WHEREAS, the Parties have determined to share a I I costs described in this
Agreement for the design, construction (and demolition), and construction
management of: the 33 -Inch Trunk and the 42 -Inch Trunk; demolition and removal
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of Gilroy's existing 24 -Inch Trunk; and construction of the 54 -inch casing that is
included as a part of the 33 -inch Trunk (which actions are herein collectively
referred to as the "Project "); and
WHEREAS, Gilroy has already awarded a design contract for the Project.
WHEREAS, the Parties agree that it is imperative that the Project, once started,
shall be completed to a fully functioning and safe condition.
NOW, THEREFORE, IN CONSIDERATION OF THE FOREGOING RECITALS AND
OF THE MUTUAL COVENANTS AND CONDITIONS CONTAINED HEREIN, THE
PARTIES HEREBY AGREE AS FOLLOWS:
AGREEMENT
1. Gilroy Rights and Responsibilities
In addition to all other rights and obligations applicable to Gilroy under this Agreement,
Gilroy shall:
(a) Select and hire consultant(s) and /or contractor(s) required to design the
Project.
(b) Select and hire consultant(s) and /or contractor(s) required to construct the
Project.
(c) Select and hire consultant(s) required for construction management to oversee
the construction of the Project.
(d) Coordinate with said consultant(s) and contractor(s) as needed.
(e) Provide project management, engineering and construction management for the
Project.
(f) Prior to agreeing to any change orders that, either alone or in combination with
any and all prior change orders, would increase the Total Project Costs (defined
in Section 1(g), below) chargeable to Morgan Hill to an amount that would likely
exceed the amount of Morgan Hill's estimated proportional share of the Total
Project Costs shown in Table 3 of Section 3C below, notify Morgan Hill of the
requested change order(s), and request and obtain written approval of such
change order(s) from Morgan Hill.
(g) Pay all costs associated with the Project, expressly excluding any and all costs
and fees, including legal fees, related to the preparation, review, negotiation,
processing and execution of this Agreement, but including the following: design,
engineering, project management, preparation of bid documents, printing costs,
2
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construction, inspections, environmental review, cost of land acquisition, permit
fees, legal fees, administrative costs and advertising costs (collectively, "Project
Costs" and, in total, "Total Project Costs "). Total Project Costs shall include
Project Costs already incurred by Gilroy.
(h) At least ten (10) business days prior to awarding and entering into any
Project - related agreement, disclose any such agreement, including the
maximum Project Costs encumbered thereby, to Morgan Hill and notify Morgan
Hill of Gilroy's intent to enter into such agreement.
(i) Provide Morgan Hill with an itemized invoice for Morgan Hill's share of Project
Costs as set forth in this Agreement, and provide Morgan Hill with documentation
for all Project Costs incurred.
(j) Meet with Morgan Hill in order to address any change order that Morgan Hill
disapproves pursuant to Sections 1(f) and 2(c) of this Agreement, below, and
consult with Morgan Hill in a good faith effort to reduce the costs of any such
change order and to otherwise reconcile and resolve any related disputes
between Gilroy and Morgan Hill.
2. Morgan Hill Rights and Responsibilities
In addition to all other rights and obligations applicable to Morgan Hill under this
Agreement, Morgan Hill shall:
(a) Pay to Gilroy Morgan Hill's proportional share of the Project Costs pursuant to
this Agreement as set forth in invoices provided by Gilroy related to the Project
pursuant to Section 1(i) above, or any part thereof, which Gilroy shall issue in
the proportional amounts set forth in Section 3 of this Agreement, below, within
thirty (30) days after receipt thereof. Morgan Hill acknowledges that Gilroy has
disclosed to Morgan Hill, and Morgan Hill has reviewed and accepted, all Project
Costs incurred by Gilroy to date, and Morgan Hill agrees to reimburse Gilroy for
its proportional share of those Project Costs in accordance with Section 3 of this
Agreement.
(b) Notify Gilroy of any problems with any invoice received from Gilroy within
twenty -one (21) days after receipt thereof.
(c) Review and make a determination regarding change orders associated with
Project Costs that would exceed the Total Project Costs amount shown in Table
3 of Section 3C, below, pursuant to Section 1(f), above, within ten (10) days
after receipt of a written request for such approval. Any submitted disapproval
shall contain a statement of Morgan Hill's reasons for such disapproval. Morgan
Hill shall not unreasonably withhold or deny approval of a change order,
provided that Gilroy shall have informed Morgan Hill of the change order.
Morgan Hill shall meet with Gilroy and work in good faith to address the reasons
M
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leading to any such disapproval and attempt to resolve and reconcile any
disputes related thereto. Morgan Hill shall have no rights to approve or deny
change orders that, cumulatively, when added to all other Project Costs, do not
exceed the Total Project Costs shown in Table 3 of Section 3C., below.
(d) Support the construction management phase of the Project by agreeing to
provide proportional funding for, as a Project Cost, a part-time Engineer
employed by Gilroy who will help oversee the work and prepare written status
reports to Morgan Hill regarding construction status and pending change orders.
3. Cost Sharinq
A. Subject to the provisions of this Agreement, the Parties shall share all
Project Costs for or related to the completion of the design, construction, and
construction management of the 42 -Inch Trunk and the demolition and removal of the
existing 24 -Inch Trunk in the proportional amounts set forth in Table 4 of Exhibit A,
which construction costs are estimated as follows:
TABLE 1: 42 -Inch Trunk Estimated Construction Costs
Estimated Construction Total: $ 4,038,245
Gilroy
74%
$ 2,988,301
Morgan Hill
26%
$ 1,049,944
B. Subject to the provisions of this Agreement, the Parties shall share all
Project Costs for or related to the completion of the design, construction, and
construction management of the 33 -Inch Trunk inside the 54 -inch casing under
Highway 152 in the proportional amounts set forth in Table 4 of Exhibit A, which
construction costs are estimated as follows:
TABLE 2: 33 -Inch Carrier Pipe Inside 54 -Inch Casing Estimated Construction Costs
Estimated Construction Total: $ 264,480
Gilroy
50%
$ 132,240
Morgan Hill
50%
$ 132,240
4
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C. The Total Project Costs are estimated as follows:
TABLE 3: Project Costs
Total
Other Project
Total Project
Construction
Costs*
Costs
Costs
Gilroy
$ 3,120,541
$ 1,560,285
$ 4,680,826
Morgan Hill
$ 1,182,184
$ 591,090 J
$ 1,773,274
Total
$ 4,302,725
$ 2,151,375
5-6,454,100
*Other Project Costs as listed in Section 1(g) of this Agreement exclusive of the
construction costs set forth in Tables 1 and 2 of this Section 3.
The Project Costs estimates listed above are as estimated in Table 4 from the 2008
Capacity Analysis report included in Exhibit A and reflect a San Francisco Construction
Cost Index (CCI) of 9,071.91 for August 2007. The Parties agree that these Project
Costs estimates are only estimates. Gilroy makes no representations or warranties that
the Project can be completed for the amount of these Project Costs estimates, and
neither Gilroy nor Morgan Hill shall be obligated to pay more than its proportionate
share of the actual Project Costs of the Project, or any part thereof, in the event the
actual Project Costs exceed the Total Project Costs estimates. Furthermore, Gilroy
makes no representations or warranties that the Project can be completed in a certain
number of days or by a certain date. All Project Costs, whether foreseen or unforeseen
and regardless of cause, including but not limited to Project Costs overruns, approved
or allowed change orders, and /or delays, shall be shared by the Parties in the
contribution percentages set forth in this Agreement.
D. Representatives from both Parties shall review the construction bids and if
the lowest responsible, responsive bid is less than or equal to the estimated total
construction costs shown in Table 3 of this Section 3, above, consistent with the
definition of Total Project Costs herein, and has a reasonable contingency as
determined by both Parties, each Party shall present such bid for approval to its
respective City Council. The bids will be reviewed first by the Morgan Hill City Council
and then by the Gilroy City Council. Should the Morgan Hill City Council not approve the
bid, Morgan Hill shall provide written legal documentation explaining the reason which
will be presented as legal justification for the rejection of the bids by the Gilroy City
Council. If the Parties elect to terminate this Agreement due to failure to obtain
acceptable construction bids, then such termination shall not relieve Morgan Hill of its
obligation to pay its proportionate share of Project Costs incurred by Gilroy prior to and
including the date of the termination. In addition, the obligations of Sections 4 and 5
hereof shall survive such termination.
5
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E. Morgan Hill and Gilroy agree to appropriate sufficient amounts of funds to
complete the Project in accordance with the estimated Total Project Costs shown in
Section 3C, above, in the contribution percentages set forth in this Agreement.
F. Should the Total Project Costs exceed the agreed to participation amounts
set forth in Section 3C, above, due to an unforeseen construction condition or due to an
accumulation of change orders as defined in the contract specifications, and, in the
professional opinion of the Gilroy Public Works Director /City Engineer, awaiting City
Council authorization from both Parties will make for an unsafe condition and /or result in
extraordinary costs due to a delay in waiting for such authorization from the City
Councils of both Parties, Gilroy's Public Works Director /City Engineer shall have the
authority to execute a change order necessary to address the unsafe condition or avoid
the extraordinary costs of the Project within the original intent of the scope of the
Project. Should this occur, Gilroy's Public Works Director /City Engineer shall provide
written documentation to Morgan Hill explaining the situation and the reason(s) that
Gilroy's Public Works Director /City Engineer directed the contractor to proceed and the
designated representatives from each Party will report to their respective City Council
the scope of the work exceeding the original authorization and why Gilroy's Public
Works Director /City Engineer provided such direction to the contractor. Those
representatives for each Party shall request further funding authorization for such
additional work, provided the additional work is necessary to complete the Project as
intended in the original scope.
G. In the event Total Project Costs exceed the amounts stated above in
Section 3C and if either Party, upon consideration of the need for a change order,
chooses through an official action of its respective City Council to not participate, that
Party shall pay the full costs to terminate the Project and restore the Project site to a
safe and functioning condition.
4. Legal Challenges to the Project
Gilroy shall immediately notify Morgan Hill of any legal challenges to any element of the
Project or Project approvals or any related claims. If Gilroy and Morgan Hill are both
named parties in any lawsuit or claim, then the Parties shall consult and, where
appropriate coordinate, in on appropriate defenses, including the retention of any
attorneys or consultants, to any such challenges or claims. - Whether or not Gilroy and
Morgan Hill have separate or joint legal counsel, and whether or not Morgan Hill is a
named party, Morgan Hill shall reimburse Gilroy for its proportional share of any
attorneys' fees, consultants' fees, and other fees and costs incurred by Gilroy related to
its defense of any legal challenges to any element of the Project or Project approvals or
to any Project- related claim involving any administrative and /or judicial proceedings and
related appeals, excepting only, and to the extent that, the underlying allegations giving
rise to the legal challenge or claim allege gross negligence or willful misconduct solely
on the part of Gilroy. If Morgan Hill is not a named party to any legal challenge or claim,
then Gilroy shall have sole discretion to choose its own legal counsel, to control its legal
defense, and to settle or otherwise resolve any such challenge or claim. If Gilroy and
n
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Morgan Hill are both named parties, then each Party reserves the right to have separate
counsel.
5. Capacity Sharing
Notwithstanding any other existing or prior agreement between the. Parties (oral or
written), upon approval by the Gilroy City Council of the Notice of Acceptance of
Completion for the Project, Morgan Hill shall be entitled to a twenty -six percent (26 %)
share in the capacity of the 42 -Inch Trunk constructed pursuant to this Agreement and a
fifty percent (50 %) share in the capacity of the 33 -Inch Trunk inside the 54 -inch casing
to be constructed under Highway 152 pursuant to this Agreement.
6. Indemnification
Pursuant to Government Code Section 895.4, each of the Parties hereto shall fully
indemnify, defend with counsel reasonably acceptable to the other Party and hold the
other Party, its officers, employees and agents, harmless from any damage or liability
imposed for injury (as defined in Government Code Section 810.8) which occurred or
is occurring by reason of the negligent acts or omissions or willful misconduct of the
indemnifying Party, its officers, employees, contractors, subcontractors, material
suppliers or agents, under, or in connection with, any work, authority or jurisdiction
delegated to such Party under this Agreement. Neither Party, nor any officer, employee
or agent thereof shall be responsible for any damage or liability occurring by reason of
the negligent acts or omissions or willful -misconduct of the other Party hereto, its
officers, employees, contractors, subcontractors, material suppliers or agents, under or
in connection with any work, authority or jurisdiction delegated to such other Party
under this Agreement.
7. Notices
Notices given under this Agreement may be hand delivered or delivered by facsimile,
with an additional copy sent by first class mail, postage prepaid, and addressed to the
appropriate party at the following addresses:
To Gilroy: City of Gilroy
7351 Rosanna Street
Gilroy, CA 95020
Attn: Rick Smelser, Public Works Director /City Engineer,
and
Attn: Saeid Vaziry, Senior Civil Engineer
Facsimile Telephone No: 408 - 846 -0429
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To Morgan Hill: City of Morgan Hill
17575 Peak Avenue
Morgan Hill, CA 95037
Attn: Karl Bjarke, Public Works Director /City Engineer
Or Jimmy Forbis, Utility Business Manager
Facsimile Telephone No.: 408 - 779 -6282
8. Additional Provisions
The Parties further agree as follows:
a) One or both Parties' waiver of any term, condition or covenant of this Agreement
shall not be construed as a waiver of any other term, condition or covenant of this
Agreement.
b) This Agreement contains the entire Agreement between the Parties relating to
the Project. Any prior agreements, promises, negotiations, or representations not
expressly set forth in this Agreement are of no force or effect.
c) The Exhibits attached to this Agreement are a part of this Agreement and are
incorporated into this Agreement by reference..
d) This Agreement shall be governed and construed in accordance with the laws of
the State of California.
e) This Agreement may be executed in counterparts, each of which shall be deemed
an original but both of which, together shall constitute one and the same
document.
f) This Agreement shall remain in effect until the Project is complete, and for a
period of two (2) years thereafter, unless earlier terminated or extended by written
agreement of the. Parties. All amendments to this Agreement must be approved in
writing by both Parties to be effective. The provisions of Sections 4 and 5 hereof
shall survive the expiration or termination of this Agreement.
g) The Parties agree that they shall endeavor to resolve any dispute about this
Agreement in good faith. The Parties further agree that should such dispute
remain unresolved, they shall engage in mediation and, if no agreement between
the Parties can be reached through mediation, by binding arbitration to resolve
such disputes,- instead of resorting to court action.
h) The designated project manager for Gilroy for the duration of the construction
project is Gilroy's Senior Civil Engineer or his or her designee. Gilroy's project
manager shall have all the necessary authority to direct technical and professional
work within the scope of this Agreement and shall serve as the principal point of
contact with Gilroy. Morgan Hill's Public Works Director /City Engineer, or his or
H
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her designee, shall serve as the principal point of contact for Morgan Hill.
i) Time is of the essence of each and every term, provision and obligation hereof.
j) This Agreement is not intended, and shall not be construed, to create any third
party beneficiary rights in any person or entity who is not a party, unless expressly
provided herein.
k) Each party hereto declares and represents that in entering into this Agreement, it
has relied and is relying solely upon its own judgment, belief, and knowledge of
the nature, extent, effect, and consequence relating thereto. Each party further
declares and represents that this Agreement is made without reliance upon any
statement or representation not contained herein of any other party or any
representative, agent, or attorney of the other party. The parties are aware that
they have the right to be advised by counsel with respect to the negotiations,
terms, and conditions of this Agreement and the decision of whether or not to
seek the advice of counsel with respect to this Agreement is a decision which is
the sole responsibility of each of the parties. Accordingly, no party shall be
deemed to have been the drafter hereof, and the principle of law set forth in Civil
Code §1654 that contracts are construed against the drafter shall not apply.
IN WITNESS WHEREOF, THE PARTIES HAVE ENTERED INTO THIS
AGREEMENT AS OF THE DATE FIRST ABOVE WRITTEN.
"Gilroy"
Gilroy, a California
gartered municipal corporation
mas J. 19aalu
City Administrator, Gilroy
VI IQVVI IQ 1 1661)
City Clerk, Gilroy
APPROVED AS TO FORM:
Linda A. Callon
City Attorney, Gilroy
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"Morgan Hill"
City of Morgan Hill, a California
general law munjgipal
,jtrcymer
City Manage/, Morgan Hill
ATTEST:
(4)-'d Vv
Michelle Wilson
Deputy City Clerk, Morgan Hill
u
City Attorney, Morgan Hill
Exhibit A
Joint Sewer Trunk Relief - Capacity Analysis Update for Segments 19 and 20
(January 2, 2008)
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January 3 20'08'
SoUthiCounty Regional Wastewater Authority
1-500 Squtft.de Orive
Gilroy CA 98020
Attention- Mr. Sapid VaAry, P.E.
q.hiqfEr)gtnepr
Subject: ' Joint Sewer Trunk Relief - Capacity Analysis Update for Segments IS and
20 -
Pear Sae.id:
I am pleased to submit this report that summarizes the: evaluation for updating the size of
the proposed Joint Sewer Trunk Relief; Segments 18 to 20. The Letter Report includes the
following 'sections:
a Objective
• Existing Joint Sewer Trunk
• 2003 C6pacity Analysis
• Capacity Analysis Updc1te for Segments 1,9•,bnd. .20
• Capital Improvement Costs
We are extending our thanks to you and'yopr staff-, whose courtesy and cooperation were
v1l.q.016-ccim,ponents in completing t . his study and prodpping this report.
Sincerely,
AKEL ENGINEERING GROUP, INC.
Tony Akel, P. E.
Principal
TA
Enclosure: Report
�.Ake
Engineering Group; Inc.
7075 N. Howard Street, Suite 102 Fresno California 93720 - P (559) 456-0600 - F:660) 4,36-0622
South Cqunty .Re+g-'1.onal Wastewater Authority
JOINT SEWER TRUNK RELIEF — ANALYSIS UPDATE FOR
SEGKENTS 19 ANA 20
0 OBJECTIVE
The existing joint Sewer Trunk corlV yS wastewater flows, from the cities' of Morgan Hill and Gilroy
to the sewer treatment:plant. The sewer.system master plans for the City of 'Morgan Hill (January
2UO2) .and the City of Gilroy (January 2004) recommended,a parallel relief to this -trunk for -
aceommodating the planned,growth in each city, The upper segments -of the. Joint Sewer Trunk
Reiief; and which are allocated to.the City-of Morgan Hill, are currently under construction:
An existing ,24 -inch City of Gilroy sewer trurik,:which parallels the existing Joint .Sewer Trunk,
Won g segments 19 and 20, is deteriorating and needs replacement The objective ofthis- analysis
Is to update the size of "the Joint'Trunk Relief segments 19 and 20, to accommodate the flows
from said 24 -1nch City of-Gilroy sewer trunk.
2:0 EXISTING JOINT SEWER TRUNK
The existing Joint Sewer Trunk starts near the southern boundaries of the City of Morgan Hill with
an 78 -inch pipe. The trunk continues 'in a southeasterly direction with a 24 -inch then 27- and 33-
inch pipe along a line that parallels, :and is west of, Monterey Street until it reaches the City of
Gilroy., Figure 'I provides a schematic of the alignment and includes the various segments, as
assigned in the Joint Exercise of Powers'Agreement creating the South County Regional
Wastewater Authority ( SCRWA Agreement) dated May 1992.
Information relevant to the Joint Sewer Trunk, ,as obtained from as- builts and from the SCRAW
Agreement, including pipe sizes, pipe slopes, were summarized in Table 1.
:0 2003" CAPACITY ANALYSIS
The SCRWA Agreement also establishes capacities for each segment and lists the corresponding
capacity allocation, in percent, between the- Cities. of Gilroy and Morgan Hill.
A 2003/2004 capacity analysis (2003 Capacity Analysis) completed by Carollo Engineers,
identified some discrepancies in capacity_ segments where as -built invert elevatiorisVere not
consistent with the pipe slope shown on the as -built drawings.
The 2003. Capacity Analysis included a detailed flow analysis of each Joint Sewer Trunk segment,
using both existing and projected dry and wet weather flows as defined in the respective Sewer
System Master Plans for Gilroy and Morgan Hill and as extracted from the hydraulic models
(Table 2).
January 2008
The flow analysis includes values for average and peak hour flows and a calculation of deficiency,
The deficiency is calculated by subtracting the peak hour flow from the capacity allocated to each
City in- the. S. CRWA Agreement.
The 2003 Capacity Analysis indicated a new relief trunk was required to mitigate the deficiencies
experienced in the existing Joint Sewer Trunk. This analysis assumed that the proposed Joint
Sewer Trunk will parallel the alignment of the existing Joint Trunk, except as noted, and maintain
the. same invert elevations. Figure 2 shows the most likely - alignment of the proposed new Sewer
Trunk Relief which will consist of pipes sized ranging from 24 inches to 33 inches. Figure 2 also
shows the capacity allocation, in percent, for each pipe segment.
Table 3 summarizes :the proposed Sewer Trunk,Relief , by segment, listing the proposed size,
estimated pipe slope, calculated pipe capacity, and capacity allocation (in percent and in mgd) to
each City. The upper reaches of the Trunk Relief, north of Pacheco Pass Road, has a capacity
that varies,between 5.5 mgd and 7.5 mgd, and is allocated exclusively to the City of Morgan Hill,
The capacity of the lower reaches of the Relief Trunk (south of Pacheco Pass Road) is allocated
equally between the cities of Morgan Hill and Gilroy, The total calculated capacity for these lower
reaches varies between 7.6 mgd and 15.7 mgd, as shown on Table .8.
4.0 CAPACITY ANALYSIS UPDATE FOR SEGMENTS 19 AND 20
This revised capacity analysis maintained the allocations established in the 2003 Capacity
Analysis, except for the portion that parallels segments 19 and 20 of the Joint Sewer Trunk Relief
(Figures 3 and 4). The pipe size for these segments was increased from 33- inches to 42- inches
to accommodate sewer flows from the planned removal of the 24 =inch City of Gilroy Sewer Trunk
which parallels said segments 19 and 20. .
Table 3 expands on the 2003 Capacity Analysis and lists the revised size for segments 19 and
20 of the Joint Sewer Trunk Relief, and the corresponding revised percent capacity allocation
between the cities of Gilroy and Morgan Hill.
In the 2003 Capacity Analysis, the allocation for segments 19 and 20 was divided equally between
the cities of Gilroy and Morgan Hill. The revised capacity analysis (Table 3.) resulted with a 74
and 26 percent allocation to the cities of Gilroy and Morgan Hill, respectively. This revised
analysis was based on maintaining the same flow allocation for the City of Morgan Hill, as
established in the 2003 Capacity Analysis.
5.0 CAPITAL IMPROVEMENT COSTS
The capacity analysis update and corresponding capacity allocation will affect the cost sharing for
the proposed 42 -inch segments 19 and 20 of the Joint Sewer Trunk Relief. Table 4 provides a
comparison between the 2003 Capacity Analysis and this proposed amendment In size to
segments 19 and 20. The top half of the table lists the costs identified in the 2003 Capacity
Analysis, with unit costs adjustments-to reflect escalations t6-August'2007 dollars. The lower half
January 2008 2
of the table lists similar costs except for segments 19 and 20, which were upsized to 42 inches
and include higher costs and modified allocations between the two cities.
It should be noted that combihing:the Join't.-8ewer Trunk Relief prqjedf�for segments 19 and 20
With the planned replacement of the p9r6ile'l 24 -Inch City" of Gilrdy 8- baler TfUhk will result With cost
savIh§s'fde both biti0t,.
January 2008 3
South County Regional Wastewater Alutho0ity
JOINT .SEWER TRUNK RELIEF - ANALYSIS UPDATE FOR
SEGMENTS 19 AND 20
LIST OF TABLES AND FIGURES
TABLES
Table 1. Existing Joint Sewer Trunk
Table 2. Existing Joint Sewer Trunk Capacity Analysis
Table 3. Proposed Joint Sewer Trunk Relief
Table 4. Capital Improvement Costs for the Proposed Joint Sewer Trunk Relief
FIGURES
Figure 1. Existing Joint Trunk Sewer Segments
Figure 2. Proposed Joint Trunk Relief Sewer (2004 Analysis)
Figure 3. Proposed Amended Design to Joint Trunk Relief Sewer
Figure 4. 2003 Manhole Rim and Invert Elevations Survey at Existing 33 -inch Trunk
January 2008 4
Table 1
E3dsting Jet11t Sewdr Trunk
Capacity AnalysWUpdate
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NTS Air-
LEG END
24" EXISTING JOINT TRUNK SEWER PIPE AND SIZE
NODE NUMBER
FG --- PROPOSED GILROY CAPACITY ALLOCATION
I MH 100Y —-PROPOSED MORGAN HILL CAPACITY ALLOCATION
-AKELENGIRECRINO GROLP. PQ RrMM. V.;.Mb., 2e. 2GG7
I mil I pon
FEF--y—i -I
I NH 1000%
I m4joox
G 54%1
MH '46%
7
G 437.
Mil 57
G 637.
MH 47X
9IFG__ 6-2 Y-. 9% I
I MH 3.
IG 66%1
MR 35%
mli 50%
12
I MH 60%
FG 50-%-1
MH 501'
FG 0%
mll .550%
AlH .50x
16
FG 55-070% -.1
MH
Fr. 60%
mli 50%
PC., G 50%
D. -All. 607.
507.
':i7 ispr 7 ;' WAVTP
FIGURE 1
JOINT MORGAN HILL 7.GILROY
SEWER TRUNK
EXISTING JOINT SEWER
TRUNK SEGMENTS
—13-0
Inter City
Bouridar,y
Agr6atbefit,Llne I
M
-so
'trip,
30
fie
27
01L R- 0 Y
162
J.
NTS
LEGEND
21'_ EXISTING JOINT TRUNK SEWER PIPE AND SIZE
? = - - -•
PROPOSED JOINT TRUNK SEWER PIPE A,ND SIZE
CONSTRUCTED 2003
@.NODE NUMBER
G OY..-+--PROP0S D GILROY CAPACITY ALLOCATION
MR 1602 •Pgoposa) moRcAN HILL CAPACITY ALLOCATION
AX EL
mu 10
MH. 100
14m, looy
FG-Woy. 71
I mil goom
G
MH ldb�j
F1G 5 6 7 - 00-Y7-
_Mi X I
33 4i 1
1 _
I—, w�
bit.
FIGURE 2
JOINT MORGAW.HILL.- GILROY
SEWER TRUNK
PROPOSED JOINT SEWER
TRUNK RELIEF 12003 ANALYSIS)
.. - 'o -e-
0: 74%
i.
2
PAjW
jo
33
33 4i 1
1 _
I—, w�
bit.
FIGURE 2
JOINT MORGAW.HILL.- GILROY
SEWER TRUNK
PROPOSED JOINT SEWER
TRUNK RELIEF 12003 ANALYSIS)
.. - 'o -e-
x
s�t•� �,,,,,�"�,., spa ,>* ache��a „��•ss.,(Highway i5� ;k ,��'+� ,•. ,,;if•,.. ,, , .
ij I Ott ,' ,I "1 �, T�(��j M •, ' ^�,(i�, F 3
i r v; �s�� •.ra. R 1 `�",a + 'e' �."�f f 3:�,�.+y, >�' f "� • _. t
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PROPOk AAiE;N'DMEt RElmove ,
2” Existing ?4a Gilroy Tru6k at
gyp.
y��r
replace v��itli42" Joint S(
#sit '4, _ Tr. Link {belief' Sewer (upsizeJ 6m
a, ' • . 3:3" Resign in 20Q3 Analysis),,
IEM
i
jreC' !^4 ',�� '� rsr• lJ�,i h+ '�d,r rr+' ( - ....o m
V.
FR ° "hec P t cr
' .r✓- ass Y:TS
rj, r L I Z
Ism
2003 Field Survey -
,''
of Existing -)30 at.
4 F Joint Sewer Trunk
Elm
t�
`
Nr
-�,,
lam
IDf
QIV Z5
��r�s �.. Yr�+�,�"ii'� ., J i. ���✓ s,.t�`��y S 5.��i �Y!'' *���.���,: # �.� 'ti �1 .,
V 'fjf �.yrj11 aK'+Fi