HomeMy WebLinkAboutGHD, Inc. 2012-08-15; Amendment 1 2014-04-01 C�o�. � �ai3--�a�-��
CITY OF UKIAH
AMENDMENT NO. 1
TO AGREEMENT FOR PROFESSIONAL CONSULTING SERVICES
DATED AUGUST 15, 2012
TERMS AND CONDITIONS
All terms and conditions of the Agreement for Professional Consulting Services dated
August 15, 2012 shall remain in force and effect except as modified by this first
amendment.
AUTHORIZATION
Upon execution of this amendment, service provider is authorized to provide the service
described under the Scope of Additional Work identified in this Amendment No. 1.
SCOPE OF ADDITIONAL WORK
Work authorized by this amendment shall include that work described in the proposal from
Carollo Engineers titled "Amendment 1 to Scope of Services- Emergency Report of Waste
Discharge for Master Reclamation Permit". A copy of said proposal is included in this first
amendment and identified as "Attachment A"
COMPENSATION
Compensation for the performance of the additional work shall be made on a time and
expense basis at ConsultanYs customary fees. Expenses shall not exceed a maximum
total cost of$46,710. •
GHD, WC. � CITY OF UKIAH
2235 MERC Y� AY, IT 50 300 SEMINARY AVENUE
SANTA RO , A 95 UKIAH, CA 95482
BY: BY: / �j��
GHD E CHAMBERS
�����/�l ity Manager
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EXHIBIT A
AMENDMENT 1 to SCOPE OF SERVICES
EMERGENCY REPORT OF WASTE DISCHARGE FOR MASTER RECLAMATION PERMIT
Background and Understanding
The City of Ukiah (City) recently filed a Report of Waste Discharge with the North Coast
Regional Water Quality Control Board (Regional Board) to support the ongoing use of
approximately 43 acres, owned by the City, for recycled water use. In 2012, the City irrigated
the field under an emergency waiver and is seeking to formalize and permit this practice.
Within the Report of Waste Discharge (RWD) the City described the limited iRigation of its own
property as a first phase, but also provided information on the overall program described in its
Recycled Water Master Plan and Mitigated Negative Declaration. The Regional Board reviewed
the submitted Report of Waste Discharge and indicated to the City that it wished to permit the
larger program, including any emergency drought uses envisioned by the City, rather than
simply permit the initial phase. While this decision by the Board will require the development of
an amended Report of Waste Discharge covering the larger program and emergency uses, it
will also provide the City with a high level flexibility to respond to the drought emergency and
implement its larger recycling program as funding becomes available.
Scope of Services
This amendment provides for the additional scope and effort required to:
• file an emergency waiver application in support of the City's planned drought uses; and
• update the originai RWD to cover the larger program.
These two efforts are closely related and the information developed for the emergency waiver
will be incorporated into the updated RWD. Tasks to be compieted under this amendment are
described below.
Task 7 Tracer Dye Study
The City's wastewater treatment plant includes two (2) serpentine chlorine contact basins that
provide tertiary level disinfection per the requirements of the City's permit for River Discharge. In
order for the reclamation program to be approved, the California Department of Public Health
(CDPH) has required that the City demonstrate that its basins can meet the disinfection
requirements outlined Title 22 of the California Code of Regulations. The tracer study is
intended to confirm the theoretical chlorine contact time of the two contact basins.
To document this, the Consultant will perform a tracer study using the protocols outiined in
Tracer Studies in Water Treatment Facilities: A Protocol and Case Studies (by AW WARF). The
tracer study will include evaluation of modal contact time under highest (4MGD) and lowest
(1 MGD) daily flow rate through the chlorine contact basins. The cost estimate assumes that the
tracer water can be discharged through the system as a single slug test utilizing the one wet
well that feeds both contact basins simultaneously and without a significant restriction on the
initial concentration and that the proper flows can be created for the duration of the test.
The results of the study will be summarized in a letter report and included in the Updated RWD
(Task 8) and Amended Title 22 Report (Task 9).
Task 2 Prepare Application for Coverage under the Regional Board's Categorical Waiver
of Waste Discharge Requirements for Emergency Drought Uses
Because of the current drought conditions, the City is exploring the option to use trucked
recycled water for construction water uses and possibly some irrigation uses. The Regional
Board has indicated that these types of uses could be considered under categorical waivers
approved by Resolution R1-2012-0099 during periods of drought. Use of the categorical waiver
requires submission of a Form 200 and Monitoring and Reporting Program that demonstrates
the uses will comply with the Basin Plan and statewide reclamation requirements and that the
City will manage the uses to avoid "pollution, contamination or nuisance".
Consultant will prepare the required Form 200 and develop a Monitoring and Reporting Program
for the proposed uses that includes:
• Brief description of the City's recycled water quality
• Map of the proposed trucked-water use area
• Agreement and permit forms for trucked water applicants
• Trucked recycled water rules and regulations
• A description of the City's inspection program
• Tracking and reporting forms for the City's use.
This Monitoring Program will support the use of the categorical waiver and will also be included
in the Updated RWD, so that the City may continue trucked recycled water use in the future.
Task 3 Update Recycled Water Program Description
Consultant will update the Recycled Program description to be consistent with the City's
Recycled Water Master Plan and its approved funding application with the North Coast
Resource Partnership. The update will include a complete list of users, type of use envisioned,
acreage, type of crop or landscape, and estimated water use.
Consultant will prepare an updated site map of the proposed Phase 1 Project (funded by the
North Coast Resource Partnership)that provides site-specific detail on the transmission and
irrigation systems, the location of any setbacks and the location of any onsite wells. Consultant
assumes City will coordinate access and information requests with the Phase 1 owners to
facilitate ConsultanYs work.
Task 4 Workshop with City and Stakeholders
Consultant will coordinate with City to host a workshop with stakeholders including the Phase 1
property owners and the Mendocino County Flood Control and Water Conservation District. The
purpose of the meeting will be to review the Regional Board's requirements and to take input on
the City's proposed Rules and Regulations, particularly the inspection and monitoring
requirements. While complying with the Regional Board's requirements for inspection and
monitoring is important, the workshop will provide a forum to discuss these requirements in the
context of existing site management practices, with a goal of developing a user inspection and
monitoring program that is as practical as possible.
Consultant will facilitate the workshop and provide minutes documenting the discussion and
conclusions.
Task 5 Update the City's Rules, Regulations and Operational Plan
Based on the results of the Workshop (Task 4), and Regional Board comments, Consultant will
update the City's Rules, Regulations and Operational Plan to more closely conform to the
Regional Board's recently developed "Attachment G
Task 6 Update the Anti-Degradation Analysis
Consultant wili update the Anti-Degradation Analysis to cover the full scope of the City's
proposed program and respond to Regional Board concerns.
Consultant will pull data from the Geo Tracker GAMA site for wells in the Ukiah Valley
Groundwater Basin and import this into GIS. Consultant will spatially locate the City's existing
monitoring wells near the WRF and import these locations and the water quality data into GIS.
Consultant will use GIS to confirm average basin water quality, as reported by the Department
of Water Resources (DWR), and to provide graphical depiction of water quality trends.
Consultant will calculate the basin's assimilative capacity for chloride, TDS and nitrate based on
average basin water quality, described by DWR and confirmed through the GIS analysis, and
the drinking water Maximum Contaminant Levels established by the California Department of
Public Health.
Consultant will confirm the improved regional water quality conditions resulting from the
proposed recycling program by:
• Calculating the current mass loading to the groundwater basin for chloride, TDS and
nitrate based on plant records for discharge to the percolation ponds and irrigation with
groundwater;
• Calculating the future mass loading to the groundwater basin for chloride, TDS and
nitrate based on reduced discharge to the percolation ponds (because the water will be
recycled) and irrigation with recycled water;
• Comparing the current and future mass loadings.
The comparative change in mass loading will be compared to the assimilative capacity in order
to demonstrate compliance with the State's Recycled Water Policy.
Task 7 Draft Updated RWD
Consultant will assemble an updated Draft RWD for the City's review, prior to submission to the
Regional Board.
Task 8 Finalize and Submit Updated RWD
Consultant will incorporate the City's comments, finalize the RWD and submit the document to
the Regional Board.
Task 9 Amended Title 22 Report
Consultant will prepare an amended Title 22 Report that responds to the Conditional Approval
Letter provided by the California Department of Public Health.
The amended Title 22 Report will include the results of the Tracer Dye Study (Task 1) and will
update the discussion in Sections 3 and 4 of the Report to provide additional detail on the
Phase 1 program, including the detailed map developed in Task 3 and the updated Rules and
Regulations developed in Task 5.
Task 70 Regional Board Coordination
Consultant will attend two meetings with Regional Board Staff and respond to one set of
Regional Board Comments.
Consultant will review draft permit developed by Regional Board and provide comments for the
City's use.
Professional Services Fee
Work will be performed on a time and materials basis for an amount not to exceed $45,000. The
work hour estimate is attached.
C1ry UMiah-Uptlated Report oT Wasre Discharge
SfaR Tobl
TasX/NOie PD PE PE GIS SrEnviromental Envimnmen[al Survey Graphlu PrqM Hours Eqwpment TotalCOSn
Pawwn Wrter Hooshialsadat Fisher Vosster Tomsun Maddock Admin
Sz3s Sizs Siao Sias Siss SiZO Siao Sios Sso
Task ITracer Dye Study
ReviewandPrep 8 4 q 16 52,980
CanduRMOni[orin B 16 24 $ 4,000 5�,160
PrepareLetterReport 3 8 ]2 8 1 31 59,080
Subtotal 30 0 0 0 20 32 0 8 1 ]1 5 4.000 $14.220
Task 2[ategotlwl waiver Appllta[lon
2.IDevelop0escrlptionandMap 4 4 8 $1,360
2.2DevelopProgrzmFOrms 2 8 1 11 $1,680
Subtotal 6 0 8 0 0 0 0 4 1 19 $3,000
Task 3 Uptla[e Recy<led Wa[e�Progrem Oesc�Iptlon 2 6 6 5890
Task4WOrXshopwlth5takeholders 6 6 51,610
Task511pdateRUles,Regulations&OperatlonalPlan 4 7q 28 $6.300
TasX 6 Updah[he Antl-Ueg2datlon Analysis
PesearchandGlSpaWbaseDevelopment 8 16 24 $0,300
ConfrmMOnitoringWellLaations 3 6 8 $1,310
Auimila[rveQOaaryOevebpmen[ 8 4 29 36 55,860
MauloadingGlculaNOns 4 4 16 24 $3,680
Subtotal 22 8 16 90 0 0 6 0 0 92 515,050
Task]DrakUpdatedRWO 2 4 2 8 $1,210
TaskBflnallze0.WO Z Z $4�0
Task9pmmendTltle22Ne ott 2 6 2 2 10 51,020
TasklORegionalBOardCOOrdination 20 20 $q,]00
Pra�ec[Tatals ]6 B 56 00 20 32 6 IS 6 262 $ O,OW $46,)30