HomeMy WebLinkAboutTask Order No. 0787 with Murray, Smith & Associates for Seasonal Well ConceptEXHIBIT A
TASH ORDER N0.0787
PREPARE A "SEASONAL WELL CONCEPT" SAMPLING PLAN
CITY OF MERIDIAN
This Scope of Services is for Professional Services between Murray, Smith & Associates
Inc. (MSA) and the City of Meridian. Services authorized by this Task Order No.0787
shall be for professional engineering services in support of the City's Water System The
terms of this Task Order shall be in accordance with the MSA Master Agreement for
Professional Services dated June 18, 2007.
Background
Over the past 3 years the City of Meridian (City) has collected water quality samples
from Well 23 that exceed the Environmental Protection Agency's (EPA) maximum
contaminant level (MCL) for uranium of 30 parts per billion (ppb). Uranium levels have
been measured consistently between 30 and 40 ppb. The City was recently notified by
the Idaho Department of Environmental Quality (IDEQ) that the well can only be used
under emergency conditions (.i.e. when a primary well is out of ~rvice for up to 60 days
per year). Under emergency operation, the City will be required to notify customers and
flush the system. Up to this point the City has been using the well as a peaking source,
where it was operated less than two months each year, this however provided significant
flexibility for the peak summer demand periods.
In a meeting with City Staff and IDEQ on August, 112008, a proposed interpretation of
how the well could be operated under "seasonal well concept" was presented by IDEQ.
This could potentially allow the City to use the well for up to three (3) months each yeaz
if a running annual average (RAA) methodology with quarterly monitoring uranium, was
used. The MCL for uranium along with other constituents such as arsenic was set based
on "long term" exposure, not periodic short term exposure that would occur in a situation
where a well was only operated for part of a yeaz. In other words, if the average of four
(4) quarterly samples for uranium is less than the MCL, the well could continue to be
used for as much as three (3) months each yeaz. Monty Mazchus of IDEQ provided a
clarifying email on the discussion also dated August 11, 2~8, though it has not been
formally approved.
In order for the City to employ the "seasonal well concept", an IDEA approved sampling
plan is required. This scope provides time for MSA working on behalf of the City of
Meridian, to work through the details of that sampling plan with IDEQ. This process is
not clearly defined at this time as the City of Meridian will be one of the first public
water purveyors in the State to utilize it. It is important that this is completed prior to the
2009 peak demand season to allow the City to utilize Well 23 without public notification
or flushing of the system.
City of Meridian HURRAY, SMITH & ASSOCIATES, INC. Task Order No.0787
October 2008 EngineersJPlanners
SCOPE OF SERVICES
Task -1 Prepare a "Seasonal Well Concept" Sampling Plan for IDEQ
MSA will prepare a "seasonal well concept" sampling plan to the City and for IDEQ
review. The water quality sampling plan associated with the proposed use of Well 23
will include at a minimum the following items:
1. Demonstration of how the new monitoring plan is more representative of the
water being served year round than the current sampling plan
2. Identification of two (2) additional sampling locations, in addition to sampling at
the wellhead
3. Identification of the sampling timing and interval at the three (3) total sampling
sites (sampling must occur at a minimum on a quarterly basis)
MSA will initially request an example "Plan" that has been submitted and approved for
another system in the State for use as a guide. MSA will work with IDEQ Staff and City
Staff for ultimate "Plan" approval.
Assumptions: As described by Monty Manchus during both the August 11, 2008
meeting and follow up email on that same day, the "seasonal well concept" is new and
has not been employed in many utilities in Idaho. At this time no guidance document
exists on precisely what is required and what format it should be in, therefore some
unknowns exist in terms of level of effort to get an approved "Plan" through IDEQ. This
task is being treated as a time and materials contract with an initial budget of $10,000.
MSA anticipates that $10,000 will be adequate to get the "Plan" approved, however the
overall budget will ultimately be determined by the specific IDEQ requirements,
including the number of meetings and iterations needed.
Deliverables: A draft and final "seasonal well concept" sampling plan in technical
memorandum format will be provided to the City and IDEQ in electronic format.
City of Meridian HURRAY, SMITH & ASSOCIATES, INC. Task Order No.0787
October 2008 Engineers/Planners
BUDGET
The overall Not-to-Exceed Budget for this task is shown in Table 1. The work will be
billed on a time and expenses basis under the terms of the MSA Master Agreement for
Professional Services. The total budget shall not be exceeded without written
authorization.
Table 1
Labor Hours and Total Project Costs
Task Number Labor Total Cost
Hours
Task 1-Prepare "Seasonal Well Concept"
Sampling Plan for IDEQ 70 $10,000
Project Totals 70 $10,000
TIlVIE OF PERFORMANCE
The completion date for this Task Order is 60 calendar days from Authorization to
Proceed. MSA will make every effort to complete the work in a timely manner,
however, it is agreed that MSA cannot be responsible for delays occasioned by factors
beyond its control, nor by factors that could not reasonably have been foreseen at the time
this Task Order was executed.
Tammy de , Mayors ,`` C3` ~/p~, ~~;
/- 1 1 O i
Date• V
SEAL
Attest - .~ c
Jaycee ]marl, ity Clerk : ~ '~~
m
Approved by City Council:
Murry ,Smith & Associates Inc.
By:
Title:l~ ~ ~ '
Date: 10117 /D ~
Approved as to
City of Meridian HURRAY, SMITH & ASSOCIATIF-0S, INC. Task Order No.0787
October 2008 EngineerslPlanners