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11220 Fieldstone Lane N.E,
Bainbridge Island, Washington 98110
Tel: (206) 778-8074 Fax: (206) 780-5669
MEMORANDUM
To: Tom McDonald
From: Scott Bender
CC: Craig Peck, Garth Mann
Date: February 22, 2010
RE: REVISED P'LEASAN'T HARBOR GROUNDWATER MONITORING
PLAN
This memorandum presents the groundwater monitoring plan to be used during construction
and operation of the Pleasant Harbor Golf and Marina Resort. The plan is based on several
meetings and discussions with the Department of Ecology and Paefic Groundwater Group,
Groundwater monitoring will be perCorined to document water quality and drawdown
conditions related to the development,
Figure 1 presents a map of the existing and proposed groundwater monitoring instrumentation.
Two additional monitoring wells will be insatlled, labeled MW -7 and MW -8 as shown on the
attached map., These will be standard 2 -inch diameter monitoring wells completed to a
minimum of 10 feet below the water table, The existing monitoring wells are labeled on the
map MW -2, MW -4, and MW -5. Wells labeled VWP-I, VWF-3, and VWP-F were
geotechnical borings with vibrating wire piezometers installed in them to measure
groundwater pressures.
The highest groundwater demand at the site will be during site development prior to the
construction of the central pond. About one month before construction rend during this period
dataloggers will be connected to all of the wells at (lie site, The program will collect
rneasureiltients on groundwater pressure and fluid conductivity (which can be correlated to
salinity). Dataloggers that record grOLllldwater pressure will be installed at VWP-1, VWP-3,
MW -5, and VW -6. Dataloggers that measure both groundwater pressure and fluid
conductivity (which can be correlated to salinity) will be installed at MW -2, MW -4, MW -7,
and MW -8, These ul,its will record groundwater measurements on a 0,5 hour basis, The
datfduggers will be downloaded every two months during the construction season estimated
from April 1 to November 1, and every three months in the non -construction period, estimated
November 1 to April 1 when there will be minimal well use.
During cQnstrLlction, water quality samples Will be collected from dle two supply wells and
N,[W-4, MW -7, and MW -8 if ars anornalous conductivity trend is observed, 'The samples will
be sent to a water quality laboratory for analysis ofchlorlde and Waves,
SUBSURFACE GROUP, LLC SGO601-03
Memorandum to Statesman Corporation
February 22, 2010
Page 2
After construction is completed and the Occupancy OC the resort units commences, all of the
dataloggers will be downloaded quarterly, Water quality santples will be collected from the
supply wells quarterly. This program will be continued for five years or until the resort has
achieved M11 build-otit, whichever is longer; at which tune the monitoring plan will be
adjusted based on the results of the program. The data will be transmitted to Ecology for their
review,
W
Pleasant Harbor will perform a minimum 72-11our aquifer test at each new water supply well
installed for the project. During testing the wells will be sanlapled for electrical conductivity
and chloride concentrations,
Pleasant Harbor will use its best efforts to sample a miniMLIM of two coastal domestic wells
for electrical conductivity and chloride concentrations twice; a year in April and August.
Sampling will be dependent upon obtaining the permission, cooperation and availability of the
owner of the domestic well. Ecology has identified four potential candidates; Pleasant Harbor
will prioritize these wells, and will seek others if the listed wells are not available. For
consistency, Pleasant Harbor will attempt to establish a long-term relationship with those weal I
owners,
SUBSURFACE GROUP, LLC SG0601-03
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Notes:
1) Well locations are approximate. Domestic well locations
Monitoring Well Location (MW - monitoring
well; VWP = vibrating wire piezometer
typically to nearest quarter quarter unless better known.
2) See Appendix for well logs
It Water Supply Well Location
Subsurface Group,
Pleasant Harbor Marina and Golf Resor i
Domestic Well and
Project Number
S00601.03
Groundwater Impact Evaluation
Monitoring Well
LLC
Statesman Corporation
Locations
Figure I