(1)
(a) All groundwater quality samples collected
to determine compliance with ch. 160, Stats., shall comply with this section
except as noted.
(b)
Groundwater sampling requirements. All groundwater quality
samples shall be collected and handled in accordance with procedures specified
by the applicable regulatory agency or, where no sampling procedures are
specified by that agency, in accordance with the sampling procedures referenced
in par.(c). The sampling procedures specified by a regulatory agency may
include requirements for field filtration.
(c)
Department groundwater sampling
procedures.1. If sampling procedures
are not specified by the applicable regulatory agency pursuant to par. (b), all
groundwater quality samples shall be collected and handled in accordance with
the sampling procedures contained in the following publications:
a. Groundwater Sampling Desk Reference.
Wisconsin Department of Natural Resources, PUBL-DG-037-96, September,
1996.
b. Groundwater Sampling Field
Manual. Wisconsin Department of Natural Resources, PUBL-DG-038-96, September,
1996.
Note: Copies of these publications may be
purchased from:
Wisconsin Department of Administration
Document Sales Unit
4622 University Avenue
Madison, WI 53705-2156
These publications are available for inspection at the
offices of the department, the secretary of state and the legislative reference
bureau.
2. Where
no procedure for collecting a particular groundwater quality sample is
specified by the appropriate regulatory agency or in the publications
referenced in subd. 1., other published scientifically valid groundwater
sampling procedures may be used.
(d)
Laboratory requirements.
All groundwater quality samples, except samples collected for total coliform
bacteria laboratory analysis,
E. coli laboratory analysis,
field analyses for pH, field analysis for specific conductance, and field
analysis for temperature, shall be analyzed in accordance with provisions under
ch. NR 149 by a laboratory certified or registered under ch. NR 149. Samples
for total coliform bacteria and
E. coli analysis shall be
analyzed by the state laboratory of hygiene or at a laboratory approved or
certified by the department of agriculture, trade and consumer protection.
Note: Refer to s. NR 149.442 for sample
preservation procedures and holding times.
(e)
Data submittal. The
results of the analysis of groundwater quality samples shall be submitted to
the department and any applicable regulatory agency. Except as provided in s.
NR 205.07 (3) (c) for wastewater permittees, this section does not require the
submission of groundwater monitoring data which is collected voluntarily and is
not required to be collected to determine compliance with this chapter or
another rule or statute.
(2) The laboratory shall select the
analytical methodology which:
(a) Is specified
in rules or approved by the regulatory agency, and
(b) Is appropriate for the concentration of
the sample, and
(c) Is one of the
following:
1. Has a limit of detection and
limit of quantitation below the preventive action limit, or
2. Produces the lowest available limit of
detection and limit of quantitation if the limit of detection and limit of
quantitation are above the preventive action limit.
(3) If the owner or operator of a
facility, practice or activity believes that a sample result does not represent
groundwater quality in the vicinity of the facility, practice or activity, the
owner or operator shall resample the appropriate well or wells to obtain a
representative sample at the earliest possible time. All sample results shall
be submitted to the department and the appropriate regulatory agency with an
explanation of why the owner or operator believes that all or some of the
results are invalid.
(4) The
department may reject groundwater quality data that does not meet the
requirements of the approved or designated analytical methods.
(5) The owner or operator of the facility,
practice or activity shall report the limit of detection and the limit of
quantitation with the sample results. If a substance is detected below the
limit of quantitation, the owner or operator shall report the detected value
with the appropriate qualifier to the regulatory agency.
