(1) Department
approval is required prior to conducting any ASR system pilot study.
(2) Only a municipal water system may perform
an ASR system pilot study.
(3) A
request to conduct an ASR system pilot study shall be submitted to the
department in writing. The request shall identify the location of each existing
well that is being considered for use as an ASR well within the proposed ASR
system, the location of any new well that is anticipated to be constructed for
use as an ASR well within the proposed ASR system and any additional wells that
are to be used or constructed as part of the ASR system pilot study.
(4) Each request to conduct an ASR system
pilot study shall contain all of the following:
(a) A preliminary hydrogeologic report that
describes the methods and results of any hydrologic investigation, aquifer
testing, hydrogeologic modeling or geochemical modeling performed to identify
the location of the proposed ASR system well sites. The preliminary
hydrogeologic report shall identify the location of each existing public or
private water well and each potential source of groundwater contamination that
is located within 1200 feet of the outer perimeter of the displacement zone
that is calculated to be established around each of the proposed ASR wells
within the proposed ASR system. The report shall also identify the well
selected for further evaluation during the ASR well pilot test, identify the
dimensions of the displacement zone that will be created around the designated
test well, and describe the current and anticipated groundwater flow patterns
found in the vicinity of the designated test well.
(b) A preliminary engineering report that
provides an analysis of the technical feasibility for developing each of the
potential ASR wells identified for the proposed ASR system and estimates the
probable percentage of treated drinking water that would be recovered from each
of the potential ASR wells during an ASR cycle.
(c) Plans and specifications for any well
equipment, pumping equipment, appurtenances or piping that is to be constructed
or altered in order to complete the proposed ASR system pilot study.
(d) A description of all operating procedures
to be followed during the ASR well pilot study. This description shall contain
details including the maximum volume of water to be placed underground, the
flow rate and pressure of underground injection, the expected water storage
period, anticipated water retrieval rates, and methods proposed for disposing
of the water recovered during the ASR system pilot study.
(e) A description of all performance and
compliance monitoring procedures to be followed during the ASR system pilot
study. This description shall include a listing of the sampling locations,
methods and schedules that will be used to ensure that the aquifer storage
recovery well remains in compliance with the performance requirements set forth
in s.
NR 811.88.
(f) Plans and specifications for each
monitoring well proposed as part of the ASR system pilot study. A minimum of
one monitoring well is required as part of the ASR system pilot study. The
department may require additional monitoring wells should the proposed ASR
system encompass multiple or otherwise unique geologic formations. The
department may also waive the monitoring well requirement if water quality data
from other ASR system pilot studies conducted in similar geologic conditions is
submitted as part of the ASR system pilot study request and is determined to be
applicable by the department.
(5) The department may require modification
of plans and specifications, operating procedures or compliance and monitoring
procedures required in sub. (4) to ensure that compliance with the performance
requirements in s.
NR 811.88 can be determined.
(6) Within 180 days after completing an
approved ASR system pilot study or prior to recovering any water retrieved
through an ASR well into a water distribution system, a municipal water system
shall submit a final report on the ASR system pilot study to the
department.
