HomeMy WebLinkAboutTask Order No. 0757a with Hydro Logic for Well Monitoring and Aquifer TestingMayor Tammy de Weerd
E IDIAN~ City Council Members:
Keith Bird
IDAHO Brad Hoaglun
Public Charles Rountree
David Zaremba
~ilorks Department
TO: Mayor Tammy de Weerd
Members of the City Council
FROM: Kyle Radek, PE
Assistant City Engineer
DATE: 12/20/10
SUBJECT: TASK ORDER 0759a FOR CONTINUING PROFESSIONAL SERVICES
WITH HYDRO-LOGIC, IN~~P1~,E T>~ ~ ERMS OF THE MASTER
AGREEMENT DATED ~~~IBRU~ , ,FOR WELL MONITORING
AND AQUIFER TESTING FOR ANOT-TO-EXCEED AMOUNT OF
$85,000
(DECEMBER 28, 2010 CONSENT AGENDA)
RECOMMENDED ACTION
A. Move to:
Approve the Task Order with Hydro Logic, Inc for Well Monitoring and
Aquifer Testing for anot-to-exceed amount of $85,000;
2. Authorize the Mayor to sign the agreement.
II. DEPARTMENT CONTACT PERSONS
Kyle Radek, Asst. City Engineer 489-0343
Warren Stewart, PW Engineering Manager 489-0350
Tom Barry, PW Director 489-0866
III. DESCRIPTION
A. Back>;round
In order to gain greater understanding of the characteristics of Meridian's
complex aquifer system which is the sole source of potable water for the City, and
to better utilize and protect this important resource, the City has engaged in
building test wells that can also be used as monitoring wells. The City has been
collecting data from these wells for several years and is beginning to see the
Page 1 of 2
current and potential benefits of this effort. Practical application of the data
includes developing an understanding of the sustainable quantity of water
available for planning purposes, understanding the water quality and aquifer
capacity in different areas for new well projects, and understanding the effects of
pumping City wells on other water sources for water rights issues.
IV.
V.
B. Proposed Project
This project includes continuing the regular collection of data from Meridian's
monitoring well field and data collection in coordination with planned pump tests.
This project also includes the assembly and synthesis of this data in reports to the
city.
C. Consultant Selection
The consultant was chosen because of their familiarity and previous experience
performing the services required. This consultant has performed monitoring of
the City's well field for several years at a reasonable cost and in a professional
manner. Continuing to use their services will result in cost savings Vs bringing
another consultant up to speed. This also ensures continuity of service and
consistency of data gathered.
IMPACT
A. Strategic Impact:
This project meets our mission requirements to indentify and prioritize work in
order to anticipate, plan and provide public services and facilities that support the
needs of our growing community, and to ensure modern reliable facilities while
maintaining financial stewardship.
B. Service/Delivery Impact:
This project ensures current and future delivery of quality water to our customers.
C. FiscalImnacts:
Available Budget Amount
Proposed Task Order Cost
LIST OF ATTACHMENTS
A. Task Order 0759a
Approved for Council Agenda:
$135,000
$85,000
~ Z- zo ~a
Page 2 of 2
TASK ORDER N0.0759a
CITY OF MERIDIAN (OWNER)
AND
HYDRO LOGIC, INC. (HYDROGEOLOGIST)
This Task Order is issued by Owner and accepted by the Hydrogeologist pursuant to the
mutual promises, covenants and conditions contained in the Agreement between the above
named parties dated I~eb
.~Ar1vAr~ 3 v ~ ~oo`I .
CITY OF MERIDIAN
GROUND WATER LEVEL MONITORING AND AQUIFER TESTING
PURPOSE
The Hydrogeologist's scope of services, time of completion and compensation shall be as set
forth herein. Services shall generally be described as continuing Hydrogeological Consulting
Services.
TASK 1.1 -CITY GROUND WATER LEVEL MONITORING AND AQUIFER TESTING
Per the City's request, Hydrogeologist will measure, maintain, keep secure, document, plot, and
report on the City's long-term ground water level monitoring network consisting of 27 tube wells.
In addition, the Hydrogeologist will conduct at least one long-term, multiple-well aquifer test using
the City's equipped production wells.
It is anticipated that one annual report of measured water levels will be compiled and submitted to
the City by January 31St of the year following the year during which the monitoring was done. In
other words, the annual monitoring period ends on December 31St for each monitored year and
the annual water level compilation to be prepared and submitted to the City shall be due by
January 31St
The Owner will provide access to conduct the measurements.
Hydrogeologist will make monthly visits (a loop) to all monitoring stations for purposes of
measuring aquifer pressures in the City's monitoring network. Hydrogeologist will also inspect,
repair, and secure as necessary the locking security enclosures using the Hydrogeologist's own
locks. The Hydrogeologist, and not the City, is wholly responsible for maintaining a secure
network of wells and to ensure that the above-ground aquifer pressures (flowing artesian wells)
are contained and that the monitoring wells are not leaking. During the winter months, the
Hydrogeologist will ensure that the flowing wells are pressurized so that the water levels in the
wells are below ground to prevent freezing and subsequent cracking of the PVC monitoring wells.
Hydrogeologist shall enter the measured water levels into acomputer-based spreadsheet
program for plotting and presentation to the City in an annual report.
For the aquifer testing portion of this project, a comprehensive report is envisioned for each test
that is accomplished that will include pre-test trend data, drawdown measurements, and a post-
test recovery period lasting, in total, from one month-to-two months in duration for all wells
measured. Coordination with the Water Department to manipulate the City's pumping in the
vicinity of the aquifer test will be key. The final report will be interpretive in nature and describe
the measured hydraulic interconnection across the aquifer system and derive aquifer coefficients
of transmissivity and storativity for use in future numerical modeling of the system. All work will
be carried out with an eye toward the future spectre of conjunctive administration of surface and
ground water as a single resource and protection of the City's municipal water rights.
Because this is an on-going annual project for the City, two vears of monitoring are anticipated
under this task order based upon annual costs for the monitoring from past years. The remaining
funds will be devoted to aquifer testing using the existing City ground water supply wells as
pumping /observation wells and the long-term designated monitoring network as observation
points and for rental of continuously-recording data-loggers for monitoring wells.
Hydrogeologist will work closely with the City's Public Works and Water Departments.
TIME OF PERFORMANCE
Hydrogeologic services will be completed on an as needed basis and time of completion will be
set as services are requested.
COMPENSATION
The Not-To-Exceed amount for this Task Order No. 0759a is eighty five thousand dollars
($85,000.00). The hourly rate for services and direct expenses is attached (Prevailing Fee
Schedule Effective January 1, 2010) and by this reference made a part hereof.
CITY OF MERIDIAN HYDRO LOGIC, INC.
TAMM, a WEERD, MAYOR ED S IRES
Dated: ~~"~-'(~ ~' ~ _ ,
,_~ ~1`_ .,;,-:~rrpA'; Dated: ~„Z. `.ZO '.Z.O ~O
Approved by City Council:
E~L)HOLMAN, CITY
.,,~. as o
_1 ~.y Jl'J JiA.~.J
=4.4 n ,. M
~.~ p ;
Approved as to Content `''~~,„ro~ sc~ti~~`'~~ Department Approval
..,..~,
BY: BY:~ /~' '`
KEITH WATTS, PURCHASING AGENT
,. TITLE: ~~J's C'r/'y ~+i~~'~.
Dated:
ated: ~ ` ~ c ~%G