Download Records, Samples -- 4725.1851-2000 (PDF)

4725.1851 WELL AND BORING RECORDS.
Subpart 1. General. A licensee, registrant, or property owner or lessee for a well
constructed according to Minnesota Statutes, section 103I.205, subdivision 4
paragraph (e), clause (1), must submit an accurate, verified, legible written record
of well or boring construction or sealing on forms provided by the commissioner,
or in a format approved by the commissioner, containing the information in
subparts 2 to 4 within 30 days after completion of the work. A written construction
record is not required for any well or boring sealed within 30 days of the time
construction began and for which a sealing record is submitted.
Construction and sealing records are preprinted forms distributed by the St. Paul office of the MDH Well
Management Section. Extra copies may be obtained by contacting the MDH Well Management Section.
These forms are used for wells and borings throughout the state, including delegated well programs.
CONSTRUCTION RECORD
The construction record is part of a four-part packet which includes a construction notification form, a
multi-copy construction record form, a metal well tag, and a water sample identification card. The unique
number (six-digit number) is preprinted on the form and used to coordinate permits, construction
records, and water sample results. All four parts of this packet are used for water-supply wells. Only the
construction record and metal well tag are used for monitoring wells; the water sample card and
notification form may be discarded. Only the construction record is used for borings, although it is
recommended that the tag be attached to the casing, even though it is not required. In the future,
individual forms may be developed for different types of wells and borings, but for the present, all wells
and borings are reported on the same form except for vertical heat exchangers.
SEALING RECORD
The sealing record is used to report the sealing of wells and borings. The sealing record has a preprinted
“H” series number used to coordinate sealing notifications and sealing reports. If the well or boring was
assigned a (six-digit) unique number when constructed, was later assigned a unique number by the
Minnesota Geological Survey (typically a six digit, 200,000 series number), or if a county has assigned a
“W” series number (“W” followed by five digits) the number should be reported on the form. Addition of
the unique number or “W” series number eliminates considerable confusion.
The flow chart following Minnesota Rules, part 4725.1842, explains the reporting requirements for
monitoring wells and environmental bore holes.
SUBMISSION OF RECORDS
Construction records must be submitted within 30 days of completion unless the well or boring is sealed
within 30 days of the date construction began, not 30 days from the date construction was completed.
Sealing records are required for the sealing of any well or boring, including 72-hour-“temporary”
monitoring wells.
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“Completion of work” means the date on which the installation of the pump or pumping equipment is
finished, the date on which construction of the well or boring is completed if a pump or pumping
equipment is not installed by the person constructing the well or boring, the date that construction work
regulated by this chapter is completed, the date the well or boring is put into service, or the date that the
permit or notification expires, whichever occurs first.
“Completion” is not related to payment, or failure to pay, the bill. It is a violation of the rules and the law
to withhold the record simply because a bill is not paid.
The department matches notifications and permits submitted with construction records received at the end
of each licensing or registration year. Licenses and registrations are not renewed if the contractor has not
submitted the necessary records. If a well or boring was not completed because of weather, seasonal-use
cabins, etc., the contractor should document the reason for the delay on the license or registration renewal.
All of the state copies of the records must be submitted to the MDH Well Management Section (or
the delegated well program) within 30 days of completion of construction or sealing. The local copy must
be given to the delegated well program if the well is regulated by a delegated well program. If there is not
a delegated well program, the local copy may be discarded. The state or delegated well program will
distribute the government copies. It is the contractor's responsibility to give the property owner the
owner's copy. The contractor copy should be retained by the contractor.
The MDH Well Management Section is evaluating electronic submission of records. This may occur in
the future but is currently not operational.
A. A new or amended record is required if a notification or permit is required
under parts 4725.1820 to 4725.1838.
If an existing well or boring is changed to at-grade, casing is added or removed below the frost line, or if
the well is deepened through a confining layer, a new record is required. It is permissible to amend the
existing record with the changes made. If alterations are made to a well or boring that do not require a
permit or notification, the contractor is urged to send in an amended record, however it is not required.
For information on reporting hydrofracturing, see Minnesota Rules, part 4725.5475.
B. The licensee or registrant must furnish the owner or owner's agent one copy,
retain one copy, and submit the remaining copies to the commissioner, except that
where a local board of health has been delegated authority under Minnesota
Statutes, section 103I.111, the remaining copies must be submitted to the delegated
program.
A list of delegated well programs and addresses is included in the appendix. The Well Management
News newsletter should be checked for updates.
C. A single record may be used to report more than one temporary monitoring
well, dewatering well, or environmental bore hole if all the wells or borings on the
record are located on a continuous parcel of property, the well or boring depths do
not vary by more than 25 feet, and the wells or borings terminate in the same
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geologic formation. All wells or borings must be of the same type. A map must be
attached to the record containing multiple wells or borings, showing all well or
boring unique numbers, and locations with distances and directions in relation to
recognizable landmarks.
This applies to construction and sealing reports. In order to be listed on a single record, conditions must
be met:
● This applies only to temporary monitoring wells, dewatering wells, and environmental bore holes;
● The wells or borings must be located on a single continuous property owned by one person;
● The well or boring depths must be within 25 feet of each other. For example, if the deepest well is
40 feet, then the shallowest well that can be listed on the same form is 15 feet; and
● The wells or borings must terminate in the same formation. Wells or borings which terminate in
different formations, in formations separated by a confining layer, or that have different water levels
may not be reported on the same form. For example, if one well is completed above a confining layer,
and another one completed in the confining layer, they must be reported on separate forms; and
● All wells or borings must be of the same type.
When multiple wells or borings are reported on a single construction or sealing report, a site map must be
drawn in the “Remarks” section of the record or on an attached sheet of paper, and must include the
location of all wells or borings, unique well numbers, and construction or sealing dates. The map must
also include some reference feature (i.e., the intersection of two roads) so the site can be located by
MDH staff. The unique number is important when tracking a well or boring for maintenance permits,
license renewals, disclosures, water quality reports, and property transfers. Missing or incorrect unique
well numbers on well sealing records will result in complications for property owners, well owners, and
well contractors in the future. Contractors are strongly urged to search (by checking with the MDH,
Minnesota Geological Survey [MGS], or the County Well Index [CWI] database) for unique well
numbers prior to sealing wells.
Wells, such as temporary monitoring wells, or borings, that are sealed within 30 days of construction
require only a sealing record and do not require a construction record. Well sealing information can be
entered on one sealing record under one number. All other wells or borings must have individual unique
well numbers and may be entered on one record, provided that they meet the conditions listed above.
A construction record or a sealing record must contain only one type of boring or well, even if the
criteria of same property, same depth, and same geology are met. For example, if an individual is
installing both environmental bore holes and monitoring wells on the same property at the same depth, a
separate record must be used for the environmental bore holes and for the monitoring wells. One record
must not have more than one type of well or boring listed.
A single vertical heat exchanger permit is issued for all of the borings constructed under the permit.
Because of this, all vertical heat exchanger borings for one permit may be reported on a single
construction or sealing record.
D. All depth measurements must be reported from the established ground
surface.
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Subp. 2. Construction records. Construction records for wells and borings must
contain the information in subpart 3, items A to F, and the following information:
A. intended use;
B. depth;
C. drilling method;
D. casing material, diameter, and depth;
E. bore hole diameters and depths;
F. gravel pack and screen type and depth interval, or open hole interval;
G static water level;
H. type, amount, and intervals of grout or sealing materials;
I. wellhead description including pitless adapter manufacturer and model if
installed, and type of casing protection if installed;
J. date of completion;
K. pump and pumping equipment description;
L. description of the geological materials penetrated by the well or boring using
terms in subpart 4;
M. hydrofractured interval if hydrofractured; and
N. drilling fluid used.
Subp. 3. Sealing record. A sealing record must be submitted for all wells and
borings sealed. The sealing record must contain the following information:
A. name and address of the property owner, and the well owner if different;
B. name, license or registration number of the contractor doing the work, name
of the driller performing the work, and the signature of the certified representative;
C. date work was completed;
D. the county, township, range, section and three quartiles, and the property
street address if assigned, of the well or boring;
E. a map showing the well or boring location with distances and directions in
relation to recognizable landmarks;
F. for records submitted under subpart 1, item C, the location data at the center
of the project, the number of wells or borings included on the record, and a sketch
map showing the location of each well or boring;
G. a description of the geological materials penetrated by the well or boring or
a description of material penetrated by the nearest well or boring for which
records are available, using terms in subpart 4;
H. the original well or boring depth, if known, and current well or boring
depth;
I. the approximate date of construction;
J. the grout or sealing materials, quantities, and intervals;
K. the casing type, diameter, and depth if present;
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L. the screen or open hole depth interval if present;
M. a description of any obstruction or pump, if present;
N. the method of sealing the annular space around the casing, if present; and
O. a description of the wellhead completion before sealing was performed.
Construction and sealing records must be signed by the certified representative of the licensee or
registrant who filed the permit or notification. Records signed by other persons will be returned to the
licensee or registrant for the correct signature.
It is critical that the construction and geology of a well or boring be known before sealing the well. This is
extremely important when sealing wells or borings where the possibility of obstructions, ungrouted liners
or sleeves, or multi-aquifer construction may exist.
Subp. 4. Geological materials. The geological materials penetrated in drilling a
well or boring must be reported. The person completing the record must include
the rock and unconsolidated material types, color, and relative hardness. The
grain size must be reported for unconsolidated materials and may be based on
field observation without technical size measurement. Geological materials must
be described using the terms in items A and B, terms contained in the Dictionary of
Geological Terms, Third Revision, by the American Geological Institute, or ASTM
Standard D2487-00
ASTM Standard D2487-00 is the Classification of Soils for Engineering Purposes and is largely based on
the Unified Soil Classification System of the U. S. Government.
A. Unconsolidated materials:
Material
Diameter
Millimeters
Diameter
Inches
(1) Clay
(2) Silt
(3) Fine Sand
(4) Medium Sand
(5) Coarse Sand
(6) Very Coarse Sand
(7) Fine Gravel
(8) Coarse Gravel
(9) Cobbles
Up to 0.0002
0.0002-0.0025
0.0025-0.0100
0.0100-0.0200
0.0200-0.0400
0.0400-0.0800
0.0800-0.1600
0.1600-2.5000
2.5000-10.0000
Up to 0.005
0.005-0.062
0.062-0.250
0.250-0.500
0.500-1.000
1.000-2.000
2.000-4.000
4.000-62.500
62.500-250.000
Screen Slot No.
From To
2
10
10
20
20
40
40
80
80
160
160 and larger
-
This is the particle size scale of Wentworth.
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B. Rock:
(1) basalt, which is a very fine-grained, dark igneous rock, commonly black,
dark gray, or dark red-brown in which the mineral grains cannot be distinguished
with the unaided eye;
Basalt is a heavy dark rock with a fine-grained texture. Small green particles may be visible. Cavities in
the rock may be filled with minerals of contrasting color. Basalts are found in the northeastern part of the
state. Sometimes basalt is referred to as “trap rock.”
(2) carbonate rock, which is a sedimentary rock consisting of limestone and
dolomite or dolostone;
(3) dolomite or dolostone, which is a sedimentary rock composed primarily of
the mineral dolomite (calcium-magnesium carbonate), which effervesces weakly in
dilute hydrochloric acid;
Dolomite may be difficult to distinguish from limestone. It is common for geologic formations to contain
both limestone and dolomite. Limestone and dolomite may both contain fossils. Dolomite will only
produce a slight “fizz” (effervesce) when a drop of hydrochloric acid is placed on a rock sample.
Limestone will strongly effervesce.
(4) gabbro, which is a dark-colored, basic intrusive igneous rock comprised
principally of basic plagioclase (commonly labradorite or bytownite) and
clinopyroxene (augite);
(5) gneiss, which is a foliated rock formed by regional metamorphism, in
which bands or lenticles of granular minerals alternate with bands or lenticles in
which minerals having flaky or elongate prismatic habits predominate;
(6) granite, which is a plutonic rock in which quartz constitutes ten to 50
percent of the felsic components and in which the alkali feldspar/total feldspar
ratio is generally restricted to the range of 65 to 90 per cent;
Granite is a hard, dense igneous rock typically light to medium colored. Individual mineral grains can
typically be seen in granite (patches of different color) but there are not pore spaces between the grains.
Granite may produce water from the weathered portion often found at the top of the granite (regolith or
saprolite) or from fractures in the rock. Unweathered or unfractured granite will not produce water.
Granite may be pink, pink and grey, black and white, and other color combinations. Granite is found at
the surface in the Minnesota River Valley, near St. Cloud, and in parts of northeastern Minnesota and
below the glacial sediments and sedimentary rocks throughout much of the state.
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(7) iron formation, which is a chemical sedimentary rock, typically thin
bedded and/or finely laminate, containing at least 15 percent iron of sedimentary
origin, and commonly but not necessarily containing layers of chert;
(8) limestone, which is a sedimentary rock composed primarily of the mineral
calcite (calcium carbonate), which effervesces freely in dilute hydrochloric acid;
Limestone is a rock which contains calcium carbonate (lime). Limestone may contain fossil plants and
animals (often shells). A drop of hydrochloric acid placed on limestone will produce a “fizz.” Limestone
may be solution weathered which results in the “karst” features of sinkholes and caves. Rapid drilling
fluid loss is a problem in karst limestone. Limestone is often white, tan, or grey in color.
(9) metavolcanic (rock), which is a volcanic rock that shows evidence of
having been subjected to metamorphism;
(10) quartzite, which is a very hard sandstone, consisting chiefly of quartz
grains that have been so completely and solidly cemented with secondary silica
that the rock breaks across or through the grains rather than around them, or a
granoblastic metamorphic rock consisting mainly of quartz, which is formed by
recrystallization of sandstone or chert by metamorphism;
(11) sandstone, which is a sedimentary rock consisting of cemented or
otherwise compacted sediment composed predominantly of sand-sized particles
generally of quartz;
Sandstone consists of individual grains of sand cemented together by calcium (lime), iron, silica, or other
materials. Sandstones may range in hardness from extremely durable materials approaching the hardness
of quartzite, to materials which will appear in drill cuttings as loose sand grains. Sandstone is often tan,
white, brown, or yellow, but may be red or green. Sandstones are found predominately in the southeastern
and western portions of the state.
(12) schist, which is a strongly foliated crystalline rock, formed by dynamic
metamorphism, that can be readily split into thin flakes or slabs due to the well
developed parallelism of more than 50 percent of the minerals;
(13) shale, which is a sedimentary rock consisting of compacted or cemented
silt and clay;
Shale is a laminated sediment comprised of fine grained materials. Shales are often gray, green, or black,
but may be brown or red. Shale will usually split along bedding planes into flat pieces. Shale may be
sticky or slippery when exposed to water. Shales may “ball-up” or swell when drilled, and may be
relatively soft. Shale is found predominately in the southeastern and northwestern part of the state.
(14) slate, which is a fine-grained, hard, dark-colored metamorphic rock
derived from shale, which typically is gray and which splits readily into flat pieces;
and
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(15) volcanic (rock), which is a generally finely crystalline or glassy igneous
rock resulting from volcanic action at or near the earth’s surface.
Igneous and metamorphic rocks are a large group of generally hard, poor water-producing rocks. This
group includes the Sioux quartzite (“red rock”) of southwestern Minnesota, the gneiss of southwestern
Minnesota (banded rock which looks somewhat like granite), slate (hard shale, sometimes referred to as
“ledge”), iron formation, and other rock types. If the specific rock type is known (such as quartzite,
granite, or slate), it should be reported, otherwise, the term “igneous or metamorphic” should be reported.
STAT AUTH: MS s 103I.101; 103I.111; 103I.205; 103I.221; 103I.301; 103I.401;
103I.451; 103I.501; 103I.525; 103I.531; 103I.541; 103I.621; 144.05; 144.12;
144.383; 157.04; 157.08; 157.09; 157.13
HIST: 17 SR 2773; 33 SR 211
4725.1855 CUTTING FORMATION SAMPLES.
A licensee or registrant must submit cutting samples as specified in this part
when the commissioner determines that samples are needed to provide subsurface
geological and hydrological information for the state water information system.
A. The commissioner shall notify licensees and registrants of the areas from
which cutting samples are required and provide licensees and registrants
operating within the areas with maps or lists indicating counties, townships,
sections, or other designated areas where cutting samples are required.
B. Licensees and registrants so notified and supplied shall collect cutting
samples during the course of drilling in the designated areas according to the
requirements specified. Licensees or registrants not supplied with sample
collecting materials but who drill in an area designated for sampling shall notify
the commissioner. Licensees or registrants shall collect the cutting samples in a
manner representative of the materials encountered. Samples must be taken at
five-foot intervals and at every change in geological material type. The cuttings
must be placed in the sample bags provided, which shall have an attached tag on
which the unique number, owner's name, location, and sample depth must be
written.
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C. Licensees or registrants shall notify the commissioner within 30 days of
completion of work, so that the cutting samples can be collected. Until collected,
the licensee or registrant shall store the samples protected from weather and
disturbance and segregated by unique number and depth interval.
Sample taking may be required in areas such as special well and boring construction areas or special
mapping areas. The contractor will be notified when submitting the well notification if cutting samples
will need to be taken.
When sampling is required, care should be taken to assure that good, clean, accurate samples are taken.
STAT AUTH: MS s 103I.101; 103I.111; 103I.205; 103I.221; 103I.301; 103I.401;
103I.451; 103I.501; 103I.525; 103I.531; 103I.541; 103I.621; 144.05; 144.12;
144.383; 157.04; 157.08; 157.09; 157.13
HIST: 17 SR 2773; 33 SR 211
4725.1860 [Repealed, 17 SR 2773]
4725.1900 [Repealed, 17 SR 2773]
4725.2000 [Repealed, 17 SR 2773]
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End
of
Records, Samples Section
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