Volume 28, No. 2
Fall 2008/Winter2009
Verbal Notification Required Before
Beginning Construction of a Public Water-Supply Well
Contractors are reminded of the new notification requirement for Public Water-Supply wells that took
effect on August 4, 2008. In addition to the requirement to file a well construction notification form with
the Minnesota Department of Health (MDH), licensed well contractors must also notify the MDH of the
starting date and time, at least 24 hours prior to beginning construction of a community or
noncommunity public water supply well. Community and noncommunity wells include, but are not
limited to, municipal wells, and wells for schools, churches, mobile home parks, apartment buildings,
restaurants, day care facilities, and parks.
Contractors may notify the MDH of the proposed starting date and time by contacting the MDH by
telephone, facsimile, or in person, or they may note the starting date and time on the well construction
notification form. This notification must be made during normal business hours, Monday through
Friday, between the hours of 8 a.m. and 4:30 p.m. Contractors can make this notification to Well
Management district staff in their area, or to the central office in St. Paul (800/383-9808).
Vertical Heat Loop (Geothermal) Business Soars in 2008
In a year with the record number of home foreclosures, the credit crunch, and stock market woes; the
drilling industry in Minnesota has had at least one bright spot. Geothermal vertical heat loop
construction has soared. The number of vertical heat loop permits issued has more than doubled since
2007. From January through November 2008, the Minnesota Department of Health (MDH) has issued
463 vertical heat loop permits that include the construction of 4,981 vertical heat loop borings. For all
of 2007, the MDH issued 231 vertical heat loop permits for 3,146 heat loop borings.
INSIDE:
Problems Observed with Bentonite Grout
Continuing Education Requirement Changes
Ask Basic Questions before Drilling New Well
Large Diameter Well Sealed in Wadena, MN
Plumbing and Well Work
Court Injunction Issued Against Unlicensed Person
Continuing Education Calendar
Minimizing Exposure to Arsenic in Drinking Water
Obituaries
New Contractors
Minnesota Department of Health Inspectors
Observe Problems with Bentonite Grout
Minnesota Department of Health (MDH) Well Management Section hydrologists, well standards
representatives, and well inspectors from across the state have reported many instances of bentonite
grout settlement. Settlement has been observed during the construction of water-supply wells and
geothermal vertical heat loop borings, and also during well sealing. In some instances, grout settlement
has been up to 50 percent.
In September 2008, a licensed well contractor
constructed a new well in Maplewood, Ramsey
County, Minnesota. The well was 140 feet deep, with
130 feet of well casing. The well was screened in
glacial deposits, and was originally grouted with three
bags of bentonite grout. After filling the annular space
surrounding the well casing with grout, the well
contractor moved the rig to another drilling site and
was planning on coming back to install the pitless unit
and the pump to finish construction of the well. A
MDH hydrologist inspected the well the day after it
was drilled and found that the bentonite grout had
settled to a depth of 38 feet.
New water-supply well constructed in September
2008, Maplewood, Ramsey County, Minnesota.
Bentonite grout settled to a depth of 38 feet.
In October 2008, a licensed well contractor drilled
four vertical heat loop borings on a property in
Shoreview, Ramsey County, Minnesota. The borings
were 180 feet deep and were drilled in the glacial deposits. The bentonite grout settled in three of the
four borings to depths of 46 feet, 26 feet, and 16 feet. The licensed well contractor had to return to the
site to re-grout the borings.
In 2005, a licensed well contractor from the metro
area sealed a 58-foot deep water-supply well,
screened in glacial deposits, with 2½ bags of
bentonite grout. Three years later, when the
property owner wanted to install a new driveway
over the well, grout was not visible in the well.
Further investigation revealed that the bentonite
grout had settled to the depth of 28 feet in the
well (almost 50 percent settlement). The MDH
required the contractor to return to the site and
verify that there was grout in the well beyond the
depth of 28 feet. Once this was determined, the
contractor resealed the well from the 28 foot
depth to the surface with a little more than three
bags of neat-cement grout. No further settlement
was observed.
Vertical heat loop boring, Shoreview, Minnesota.
186 feet deep with bentonite grout settlement to a
depth of 46 feet.
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As you can see, settlement of bentonite grout can
be a significant problem for the construction of
wells and vertical heat loop borings and for the
permanent sealing of wells. Incomplete or
inadequate grout seals can cause wells and
aquifers to become contaminated and can
adversely affect the efficiency of geothermal
vertical heat loop systems.
What is causing the grout settlement problems?
Is it geology? Is it the properties of the bentonite
grout products? Is it the way in which contractors
are mixing and pumping the grout? Or is it
bridging and subsequent settlement of drill
cuttings? Maybe a combination of some, or all of
the above? One thing is for sure, if a solution to
this problem is not found, the quality of the water
in our wells and in our aquifers is in jeopardy,
and the efficiencies of our vertical geothermal
heat loops will suffer. What can contractors do?
Five inch diameter well in Bayport, Washington County,
Minnesota, that was sealed three years earlier with
2½ bags of bentonite grout. Fifty percent grout
settlement was observed.
1. Make sure that you are properly mixing your grout. Label instructions must be followed and the
grout must have a minimum of 15 percent bentonite. A grout product whose label calls for
30 percent bentonite must not be diluted. A 30 percent bentonite grout means that 30 percent by
weight must be bentonite. A 15 percent bentonite grout consists of a mixture of no more than
34 gallons of clean water, to each 50 pound bag of bentonite grout. Contractors should measure the
water they use to mix the grout to prevent adding too much water. Make sure when grouting that the
grout coming out at the surface is the same consistency as the grout in the grout mixer. Keep your
tremie pipe submerged in grout at all times.
2. Leave the well or boring sit for a day or two after grouting before installing the pitless unit, or before
manifolding vertical heat loop piping together. Then check the grout. If the grout has settled, the
contractor must top it off with additional grout. Some contractors have reported that adding granular
bentonite to the grout mixture (the “Ohio” recipe), lessens grout settlement.
3. If you are experiencing grout settlement problems with bentonite grout, consider trying a different
brand. There are a variety of different bentonite grout products on the market. Check and see what
works best for other contractors working in your part of the state.
4. Consider using neat-cement or cement/sand grout especially in highly permeable formations with a
low static water level (dry gravel). Dry geologic formations can “wick” the water away from the
grout resulting in settlement and/or cracking. The MDH staff have witnessed very few cases where
significant settling problems occurred when cement grout was used.
If contractors are constructing new wells by shoveling drill cuttings into the annular space to within
50 feet of the surface, then pumping bentonite grout from 50 feet to the surface, and are experiencing
settlement problems; maybe the cuttings are initially bridging in the annular space and then subsequently
settling. Full length grouting, from the top of the well screen to the surface may solve the settlement
problem.
3
Licensed contractors are responsible to see that the wells and borings they construct and seal are grouted
properly. Contractors who continue to have problems with grout settlement should evaluate their
grouting procedures, consult with the grout manufacturer, and/or consider trying a different grout
product. Contractors are responsible to correct grout settlement problems and may be issued violation
letters, and may be subject to additional enforcement actions if grout settlement problems are not
corrected, and if they persist.
Important Reminder:
Continuing Education Changes
The recent revisions to Minnesota Rules, Chapter 4725 (Wells and Borings), effective August 4, 2008,
included a significant change in the required continuing education credits for annual license/registration
renewals. The previous rule simply required that the certified representative must obtain six contact
hours of continuing education from a Minnesota Department of Health (MDH)-approved program,
regardless of license type, in order to renew the contractor license.
Under the revised rule, the number of continuing education credits required annually for certified
representatives of limited well/boring contractors and elevator boring contractors is now reduced to
two hours. (Limited well/boring contractors include pump installers, pitless/screen contractors,
dewatering well contractors, dug well/drive point contractors, vertical heat exchanger contractors, and
well sealing contractors.) The two hours of continuing education must be from a MDH-presented or
MDH-sponsored program. These programs would include presentations made by MDH-staff or
presentations organized by the MDH. MDH staff often make presentations at the Well Management
District meetings, the annual Minnesota Water Well Association Convention, Minnesota Rural Water
Association conferences, many pump schools, and other trade and professional programs.
Certified representatives of well contractors, including individual contractors and monitoring well
contractors, must still obtain six hours of MDH-approved continuing education annually. Two of the
six hours must be from a MDH-presented or MDH-sponsored program.
For the upcoming 2009 renewals, and due to the mid-year rule changes, the MDH will accept continuing
education credits meeting either the old rules (pre-August 4, 2008) or the new rules that went into effect
on August 4, 2008. For license renewal in 2010, contractors will have to comply with the continuing
education requirements of the new rules.
Calendars announcing continuing education opportunities are provided in The Well Management News
and on the MDH Well Management Web site at: www.health.state.mn.us/divs/eh/wells/lwcinfo/training.html.
MINNESOTA WELL MANAGEMENT NEWS
Published twice per year by the Well Management Section, Minnesota Department of Health
www.health.state.mn.us/divs/eh/wells
Editor: Patrick Sarafolean, 651/643-2110
Contributors: Well Management Staff unless otherwise noted.
To request this document in another format, call 651/201-4600
Deaf and hard-of-hearing: TTY 651/201-5797
Reprinting of articles in this newsletter is encouraged. Please give credit to the Minnesota Department of Health
or noted source.
4
Ask Basic Questions About a Property’s History
to Determine Best Location for a New Well
Well contractors are encouraged to ask property owners some basic questions about the history of a
property and the history of a property’s water supply prior to choosing a location for a new well. A
recent case in southeastern Minnesota demonstrates how a few simple questions can avoid locating a
well in the vicinity of a potential contaminant source, and in this case avoid a setback distance violation.
A well contractor set up his drill rig to construct a new well shortly before the Minnesota Department of
Health well inspector arrived. The well contractor was able to visually identify two existing wells, one in
use and one that had recently failed. He set up the rig to drill the new well 50 feet away from the well
that had failed. Upon arrival, the well inspector interviewed the property owner and determined that the
house on the property dated back to the late 1800’s and that the house was approximately 40 years older
than either of the two existing wells on the property. The inspector then asked the obvious follow-up
question: “What was used for a water supply prior to the construction of the two visible wells?” The
property owner informed the inspector that there was another unsealed buried well on the property, and
pointed to a location 25 feet from where the contractor had set up to drill the new well. The inspector
checked the location with a magnetic locator and identified a very strong magnetic signal in the location
identified by the property owner. Minnesota Rules, Chapter 4725 requires a new well to be located no
less than 50 feet from an unused, unsealed well. The well contractor subsequently moved the drilling rig
to a new location on the property that was 55 feet from the newly discovered, unsealed well. Both
abandoned wells have been properly sealed.
In this case, the property owner knew the location of the unsealed buried well, but did not mention it to
the well contractor. When asked, the owner readily provided the additional information. Prior to
choosing a well location, the well contractor inspected the property and identified visible property
features. He also asked the property owner about the current location of the septic system. However, the
contractor did not ask questions that would have helped identify older site features that were not visible,
but were important in determining the best location for the well.
It is not unusual to find properties where two, three, or more wells were constructed to serve the
property. It is also not unusual to find properties where a newer septic system has been installed to
replace one or more older sewage systems. If there are older septic tanks, cesspools, and sewage
drainfields, or privys still present, the setbacks outlined in Minnesota Rules, Chapter 4725 still apply
unless it can be documented that the contamination source has been removed.
It is also common to find properties that have no visible buildings but had been previously developed for
residential or other purposes, or properties with newer homes or buildings that have replaced older
homes or other structures. Old wells and contaminant sources such as old barns, feedlots, and septic
system components, may not be visible, but may still exist.
Some basic historic information to obtain about a property includes:
•
•
•
•
The approximate age of the existing house or buildings on the property.
The existence and approximate age of older houses or structures on the property that are no longer
visible.
The approximate date that the property was first developed and the purpose of the development.
The age and location of all wells, sewage system components, and other contamination sources known
to exist on the property.
5
Large Diameter Dug Well Sealed in Wadena
In February 2007, officials from the city of
Wadena, Minnesota, contacted the Well
Management staff at the Minnesota Department of
Health’s (MDH’s) Bemidji district office with
questions about how to properly seal an old, large
diameter water-supply well on city property.
The well was 32 feet in diameter, 26 feet deep,
and had been used by the city for many years. The
well was taken out of service in the 1970’s. The
well was located on a city lot and had a steel
reinforced cement cover and side walls. Wadena
City officials were not sure when the well was
originally constructed, but thought it was dug
prior to World War II.
An old, abandoned municipal well in the city of Wadena,
Wadena County, Minnesota, was permanently sealed in
April 2007.
The well was permanently sealed in April 2007,
under the supervision of Mark J. Traut Wells,
Inc., in accordance with state well sealing requirements. Traut hired a local excavation company to truck
in and place 700 cubic yards of clay into the well. The clay came from a pit 10 miles away and was
placed into the well with an excavator. Prior to placing the clay into the well, the water in the well was
pumped out with a 350 gallon per minute pump, into a nearby city storm sewer. The top 8 feet of the
poured concrete wall/casing surrounding the well was removed to prepare the lot for sale and future
development.
Plumbing and Well Work
Legislation passed in 2007 required state-wide licensing of plumbers, established the Plumbing Board,
and created a master and journeyman restricted plumbing license. Previously, licensing was required
only in cities with populations of 5,000 or more people. The Plumbing Board now has the authority to
create, amend, and interpret the Minnesota Plumbing Code, Minnesota Rules, Chapter 4715. The
Plumbing Board consists of members representing the plumbing industry, state agencies, plumbing
inspectors, water utilities, and the public. The restricted plumbing license allows persons to do plumbing
work in rural areas and in cities with populations of less than 5,000 people. The legislation did not affect
the applicability of the plumbing bond which is state-wide, or the Plumbing Code, which applies to
public facilities and where a local government has adopted the Plumbing Code or the Minnesota
Building Code, which adopts the Plumbing Code by reference.
Licensing of plumbers and inspection of plumbing in public facilities is done by the Minnesota
Department of Labor and Industry. Local governments may inspect plumbing in their respective county,
township, or city.
The definition of “plumbing” is found in the Plumbing Code and essentially includes all potable water,
drainage, and vent piping within the property lines. As such, the definition includes water supply piping
and fixtures such as pressure tanks and yard hydrants routinely installed by well contractors. Meetings
6
have been held with the Department of Labor and Industry, Plumbing Board, Minnesota Department of
Health, and Minnesota Water Well Association to determine what work may be done by a licensed well
contractor with a well contractor license who does not have a plumbing license.
The Department of Labor and Industry and the Plumbing Board have agreed that MDH licensed and
bonded well contractors may install a well discharge line (what is referred to in the Plumbing Code as a
“water service pipe”) from a well to a pressure tank, or two-feet inside the building if there is no
pressure tank, without a plumbing license or plumbing bond. The discharge line is regulated in the well
rules in part 4725.5250. The Department of Labor and Industry and the Plumbing Board have not made
the same determination about additional water lines or installation of frost-proof hydrants, and have said
that this work requires a plumbing license.
The Minnesota Water Well Association has discussed proposing a change to the plumbing law which
would allow licensed well contractors to install additional water lines and outside fixtures such as yard
hydrants without a plumbing license. For further information, contact the Minnesota Water Well
Association at 651/290-6270.
For further information about plumbing and plumbing licensing, please contact the Department of Labor
and Industry at 651/284-5067.
Court Injunction Issued Against
Unlicensed Person Doing Well Contracting Work
The Minnesota Department of Health (MDH) recently obtained a court injunction against Mr. Daniel
Kampsen and “Kampsen Well Drilling” for performing well construction work on three different
properties in central Minnesota without a well contracting license.
The Seventh District Court issued the injunction on October 2, 2008. It ordered: “Defendant, under any
name, his agents, servants, employees, affiliates, successors, assignees, and any and all persons acting
in concert or participation with him are permanently enjoined from drilling, constructing, repairing, or
sealing a well or boring without a license, registration or limited license issued by the Minnesota
Department of Health pursuant to Minn. Stat. § 103I.205 and Minn. R. 4725.0475.”
The MDH conducted an investigation and
learned that Mr. Kampsen improperly
constructed or attempted to construct
seven wells on three different properties in
Stearns, Stevens, and Pope Counties in April
and May 2008. Violations of state law and rules
included drilling without a license, failure to
submit valid notification forms and fees, failure
to grout, installation of non-complying gravel
pack, and improper well head completion.
Corrections to four wells have been made,
including major reconstruction and well sealing.
The MDH is continuing to pursue corrections
for three unsuccessful, abandoned wells.
One of seven illegal water-supply wells constructed by
Daniel Kampsen, an unlicensed individual, in 2008.
7
Continuing Education Calendar
The Internet link to the Minnesota Department of Health (MDH), Well Management Section’s,
Continuing Education Calendar is: www.health.state.mn.us/divs/eh/wells/lwcinfo/training.html.
This calendar lists the upcoming continuing education courses that have been approved for renewal of
certification for representatives of Minnesota licensed and registered well and boring contractors. The
calendar also lists the number of credits available for each course. The calendar is updated monthly and,
if you subscribe, you will be notified by e-mail when this page changes (new classes added, changes to
existing classes).
For additional information about any of these training opportunities, call the contact person listed for the
program of interest. For general information about continuing education, more current CEU listings, or
to request approval for other continuing education activities not listed, contact Mike Convery,
Minnesota Department of Health, Well Management Section Operations Group Supervisor, at
651/201-4581, or [email protected].
Methods for Minimizing Exposure to Arsenic in Drinking Water
Arsenic occurs in Minnesota groundwater due to naturally occurring arsenic minerals in soil and rock,
and rarely, due to the disposal of arsenic containing wastes. At higher concentrations, arsenic can be
harmful to health. All new wells in Minnesota must now be tested for arsenic at the time of construction.
If arsenic is detected in well water at levels exceeding 10 micrograms per liter (ug/l), the Minnesota
Department of Health (MDH) recommends that well owners take action to minimize their exposure. The
following options may be considered to minimize exposure to arsenic in drinking water:
*Install a Water Treatment System to Remove Arsenic
There are several types of water treatment systems that can effectively reduce arsenic levels in drinking
water. These systems will typically not treat the entire water supply and only provide limited quantities
for drinking. Treatment systems that will remove arsenic include:
Reverse Osmosis - Reverse Osmosis (RO) is a water treatment process that removes most dissolved,
inorganic contaminants from water by forcing the water through a cellophane-like plastic sheet known
as a “semi-permeable membrane.” RO will usually remove arsenic V, the most toxic form of arsenic in
water, but will not remove all arsenic III without pre-treatment. A pre-oxidation step, usually consisting
of chlorination, is usually necessary to convert all arsenic in the water to a removable form. A small
counter top RO unit will produce about 3 gallons of filtered water per day. Slightly larger units that are
usually installed under the counter will produce 5 to 20 gallons of filtered water per day. RO units
typically produce only 1 gallon of treated water from every 3 to 5 gallons of water filtered. The
remaining water goes to waste. Reverse osmosis units should be checked regularly because the semipermeable membrane will deteriorate over time.
Filters with Specialty Media - Special removal medias have now been developed by many water
treatment companies to specifically remove arsenic from water. They typically use “ferric (iron)
hydroxide,” “ferric oxide,” or iron-enhanced ion exchange resins.
8
Distillation Systems - “Distillation” is a water treatment process that boils water, then cools the steam
until it condenses into a separate container. The dissolved contaminants are left behind in the boiling
pot. Distillation units require about four hours to produce 1 gallon of water, so this type of treatment
uses a considerable amount of energy in its operation.
Conventional water softeners and activated carbon filters will not alone remove arsenic. Boiling the
water will only concentrate the arsenic, due to evaporation of some of the water.
Before purchasing a home water treatment system, it’s a good idea to make sure that it will meet your
needs. Work with a reputable dealer. Find out how much arsenic the system will remove, the
maintenance requirements, and the costs. MDH recommends that you choose a treatment system that is
certified by an independent certification organization, such as NSF International, Underwriter’s
Laboratory (UL), or the Water Quality Association (WQA).These are independent organizations that test
water treatment systems to assure they perform up to the manufacturer’s claims. In Minnesota, water
treatment systems must be installed by a licensed, bonded plumbing or water conditioning contractor, or
homeowners may install equipment in homes they own and occupy. After the treatment system is
installed, it is important to follow the manufacturer’s recommendations for maintaining the system.
Also, remember to test the water periodically to make sure that the treatment system is working
properly.
*Construct a New Well into a Different Aquifer
In some areas, a new well constructed into a different aquifer may produce water with less arsenic. In
some cases, deeper portions of an aquifer contain water with less arsenic, particularly when the upper
portion of the aquifer is composed of clay. Drilling a new well may be a good option if you already want
to replace your existing well for other reasons. It can be less expensive in the long run than maintaining
a treatment system. However, a new well may still contain arsenic even if the well is properly located
and constructed.
As our information about the occurrence of arsenic grows, we will learn more about which waterbearing formations in an area have higher or lower levels of arsenic. While there will still be no
guarantees, the chances of constructing new wells with lower arsenic levels should improve in some
areas. For more information about new well construction, contact a licensed water well contractor, or a
well specialist at your nearest MDH district office.
*Connect to a Community Public Water System
In some cases, connection to a community public water supply system may be an option. All community
public water systems are regularly tested for arsenic and other contaminants and must comply with all
EPA standards. Most community public water systems already comply with the new Maximum
Contaminant Levels (MCL), and all are expected to comply by 2010. Testing results are available from
each community public water system.
*Buy Bottled Water
You may be able to reduce arsenic levels in your drinking water by using bottled water. It is important to
note that while all public drinking water systems must meet applicable federal MCL, no single set of
standards applies to all bottled water. Instead, bottled water is subject to a variety of standards,
depending on the type of bottled water and where it is bottled. These standards may be more or less
stringent than those for public water systems. If you are considering switching to bottled water, be sure
that levels of arsenic and other contaminants in the bottled water you choose are lower than levels in
water from your current water supply. The bottling company should be able to provide testing results for
their water.
9
Obituaries
Clarence McAlpine, 88, formerly of McAlpine Brothers Well Drilling Company in Dayton, Minnesota;
passed away on July 18, 2008.
Clarence McAlpine served in the US Army during World War II in Europe. He participated in the Battle
of the Bulge and other major battles. Clarence founded McAlpine Brothers Well Drilling company in
1946. Clarence is survived by his wife Eunice, nine children, 27 grandchildren, and over 40 greatgrandchildren. Clarence was preceded in death by his son Kenny; grandsons Dan and Pat; parents
Anthony and Francis; brothers Del, Cy, Gene, and Darrel; and sisters Pearl and Marian.
Clarence’s funeral service was held at St. John the Baptist Catholic Church, Dayton, Minnesota, on
July 28, 2008. Interment was at the Minnesota State Veterans Cemetery in Little Falls, Minnesota.
Richard “Rick” Patrick Klimek, 38, of Klimek Bros. Well Drilling, Inc., Alexandria, Minnesota;
passed away on November 30, 2008 as a result of a tragic automobile accident in northwestern
Wisconsin. Rick was traveling with his 27 year old nephew, good friend, co-worker, and hunting buddy,
Matt Baumann, who also died in the accident.
Rick was born on May 30, 1970, in Alexandria, the twelfth out of thirteen children to Jerome and
Delleen (Daas) Klimek. He was baptized and confirmed at Our Lady of Seven Dolors Catholic Church
in Millerville. The Klimek family lived on the family farm in the Millerville/Brandon area. Rick
attended Brandon High School and graduated in 1988. Rick worked for Steven M. Traut Wells, Inc.,
from 1988 until 1996. In March 1996, Rick and his brother Don started their own well drilling business
and called it Klimek Bros. Well Drilling, Inc. In 1998, Rick expanded their business by starting,
Advanced Irrigation and Hydroseeding.
Rick always made time for his wife and kids. He loved hunting, fishing, golf, watching sporting events –
especially the Dallas Cowboys and going to games. As a father he loved coaching his children’s baseball
and softball teams, and teaching Sunday School. Rick enjoyed playing Texas Hold’em and this past
summer he won a tournament to play at the World Series of Poker in Las Vegas. He was a member of
the Eagles, Minnesota Water Well Association Treasurer, and a Pheasants Forever board member.
Rick is survived by his wife, Jennifer; two children: Haley and Derek; his parents; six brothers and
six sisters; his mother and father-in-law Iva and Jay Gullickson; his sister-in-law Judi (and Mark)
Femrite; and brother-in-law Jodean (and Jill) Gullickson.
Funeral services were held December 5 at Lake Geneva Christian Center with the Reverend Elaine
Leone and Father Al Ludwig officiating.
Burial was at St. Paul’s Cemetery in Lowry, Minnesota.
10
New Contractors
The following individuals have become certified representatives or responsible individuals since the last
issue of this newsletter was published.
Well Contractor
Timothy L. Butterfield
Tim Butterfield Drilling, Inc.
Somerset, Wisconsin
Pump Installer
Brent N. Dekok
Irrigation Pump Service
Belgrade, Minnesota
Jack I. Herron
Jack Herron Drilling Services
St. Paul, Minnesota
Gary R. Edblad
Cambridge Plumbing and Heating, Inc.
Stanchfield, Minnesota
Explorer
Richard W. Murphy
Acme Ochs Brick and Stone, Inc.
Denton, Texas
Steve L. McCullough
Lauren McCullough Well Drilling, Inc.
Wyoming, Minnesota
John Storie
Kennecott Exploration Co.
Tamarack, Minnesota
Pitless/Screen Contractor
Steve L. McCullough
Lauren McCullough Well Drilling, Inc
Wyoming, Minnesota
Minnesota
Well Management News
MINNESOTA DEPARTMENT OF HEALTH
WELL MANAGEMENT SECTION
625 ROBERT ST N
PO BOX 64975
ST PAUL MN 55164-0975
651/201-4600 or 800/383-9808