1998 - Summer (PDF: 466KB)

Reservoir Photo Wins Award
The draining of a Minneapolis Water Works reservoir for repairs
presented a unique photo opportunity in 1993. The new editor
of the Waterline did a story on the reservoir and five years later
entered one of the photos in a National Photography Contest
co-sponsored by the Centers for Disease Control as part of
National Public Health Week. The photo won the grand prize,
and the Waterline editor was invited to a press conference in
Washington, D.C., to accept the award from Surgeon General
David Satcher (below—Satcher at left, editor at right).
MDH Contracts with MRWA for
Technical Assistance
The drinking water revolving loan fund authorizes states
to set aside money from the capitalization grant to fund
various components of the drinking water program. One of
those fundable components is technical assistance to small
systems. The Minnesota Department of Health (MDH) will
be taking advantage of the technical assistance set aside to
fund a technical assistance program for nonmunicipal
community water systems, which include manufactured
housing developments, housing subdivisions, and apartment
buildings. This assistance will be provided through a
contract with the Minnesota Rural Water Association
(MRWA). Through this contract MRWA—which has hired
Don Christianson, the former water superintendent a t
Crookston, to carry out the duties— will schedule and
conduct one-on-one technical assistance visits to help
systems with operational, maintenance, and managerial
problems related to the water system. They will also be
available to provide assistance by phone or through literature
concerning operational issues. MRWA will also disseminate
information about the requirements of the Safe Drinking
Water Act but will NOT serve as a compliance or
enforcement agent of MDH.
Upcoming Certification
Exam Dates
September 2, Askov
October 6, Brooklyn Center
October 15, Windom
October 28, Collegeville
October 30, Northfield
December 3, Moorhead
See calendar on back page
for more information
Summer 1998
Volume Six/1
Inside:MDH Annual Drinking Water Report
Water Supply Elsewhere
Training News and Information
Radium Rule Update
Training News
Dates Set for
1999 Metro, Northeast Schools
Risk Management Is Topic of
October 22 Teleconference
The 1999 Metro Waterworks Operators’ School will be
held at the Thunderbird Hotel in Bloomington from
Wednesday, April 21 through Friday, April 23. Amid
indications that a change in season might be appropriate
for the school, a survey was conducted among participants
at the 1998 event; the results clearly showed that April
was still the preferred time for the school, so April it will
remain. It is possible that the one-day Exam Prep session
that has preceded the Metro School will now be integrated
into the school rather than held as a separate event. (See
related story on this page for more news regarding training
surveys.)
The Northeast District has also set plans for its 1999 school.
After a two-year stint at the Holiday Inn SunSpree in Ely, the
school—which will run from Wednesday, May 5 through
Friday, May 7—will move to Superior Shores Resort and
Conference Center in Two Harbors.
The next American Water Works Association—scheduled
for Thursday, October 22 at the Earle Brown Center in St.
Paul and in East Grand Forks—will be of interest to the
water systems affected by new risk management
regulations that were adopted under the Clean Air Act in
1996. Systems that handle threshold amounts of chlorine,
anhydrous ammonia, or aqueous ammonia will be required to
develop and implement a comprehensive risk management
plan by July of 1999.
Information will be sent to all AWWA members on this
teleconference; in addition, an application will be in the Fall
1998 Waterline.
AWWA has also set its 1999 teleconference schedule:
March 11—Complying with the D/DBP Rule Cluster
Regulations
October 21—Technologies to Comply with the D/DBP
Rule Cluster
Surveys Yield Valuable Information
AWWA 1998-99 District Officers
Surveys related to safety and general training have been
conducted in the AWWA Metro District. Last January, 67
metro area water superintendents who responded to a
survey indicated that they would be interested in having the
district sponsor half- or full-day training sessions that dealt
with only one or two topics at a time. The topics they
expressed the greatest interest in were Water Treatment
(Basic and Advanced), Water Chemistry, SCADA Systems,
Chemical Feed, Wells, and Leadership/Interpersonal Skills.
The superintendents also showed a clear desire for
additional safety training. As a result, a separate safety
survey was distributed to all participants at the three-day
Metro School in April. The majority who responded to this
survey said that although they do receive adequate training
opportunities for required safety topics, they felt a need for
additional, optional safety training.
The Metro District Education Committee will consider the
results of the surveys and explore ways of delivering the
desired training.
Southeast District
Chair—Dan Hemmah, Red Wing
Vice Chair—Dean Huschle, Northfield
Director—Myron Voelker, Owatonna
Secretary—Paul Halvorson, MDH
Metro District
Chair—Dave Peterson, Brooklyn Center
Vice Chair—Bert Tracy, Champlin
Director—Adam Kramer, Minneapolis
Secretary—John Norgren, Anoka
Consumer Confidence Reports
October 6 in Bloomington
Waterline
American Water Works Association (AWWA) will present
a one-day seminar, Consumer Confidence Reports, on
Tuesday, October 6 at the Thunderbird Hotel in Bloomington.
Registration forms and additional information will be sent
to all AWWA members in the summer; others may contact
Mayme Larson of AWWA at 303/347-6204.
Published quarterly by the Drinking Water Protection
Section of the Minnesota Department of Health
Renewal Notices Sent
To request this document in another format,
call 612/215-0700; TDD 612/215-0707 or toll-free
through the Minnesota Relay Service,
1/800/627-3529 (ask for 612/215-0700).
Editor: Stew Thornley
Waterline staff: Dick Clark, Marilyn Krause,
Cindy Swanson, Doug Mandy
Renewal notices for certificates expiring on June 30th were
sent out in early May. If you have not yet received your
notice, contact Marilyn Krause at 612/215-0754.
2
Radium Ruling Leaves State Reeling
So Who Needs Bottled Water?
Recent actions (as well as the possibility of inaction) by
the U. S. Environmental Protection Agency (EPA)
concerning the revisions to the radionuclide rule could have a
major impact on Minnesota community water systems. On
July 18, 1991, EPA had proposed revisions to the
radionuclide rule, the most significant being a change in
maximum contaminant levels (MCLs) for radium 226 and
radium 228. Prior to the proposed rule revision, the MCL for
the total of radium 226 and radium 228 was 5 picoCuries/liter
(pCi/l). The 1991 rule revision proposed to change the MCL
to 20 pCi/l for radium 226 and 20 pCi/l for radium 228.
Radium 226 and 228 are naturally occurring minerals that
are commonly found in Minnesota groundwater that is drawn
from deeper bedrock aquifers. EPA indicated to MDH that
during the time frame between when the rule was proposed
in July of 1991 and when it became final (a period that is
usually no more than two years), MDH should not require
any corrective actions from Minnesota water systems that
complied with the proposed MCLs of 20 pCi/l for radium 226
and 20 pCi/l for radium 228. This was good news since none
of the Minnesota systems exceeded the proposed MCLs.
MDH felt that it was reasonable to take this a step further
and decided to require increased quarterly radium monitoring
only if the 20/20 MCL was exceeded during
routine sampling (which was once every three years). Since
1991 there have been no exceedances during routine
monitoring of the 20/20 MCLs, so MDH has not initiated any
quarterly compliance monitoring for radium.
For a variety of reasons, nothing was done to finalize the
1991 rule revision proposal; as a result, MDH continued to
use the 20/20 proposal as the MCLs to base monitoring and
compliance decisions on. However, in December 1997, EPA
held a stakeholder’s meeting to discuss issues related to
adopting a revised radionuclide rule and announced that the
radium MCLs will probably not be changed to the 20/20 as
proposed in 1991 but would remain at a combined radium
level of 5 pCi/l. EPA officials cited provisions of the 1996
Safe Drinking Water Act amendments that prevent them from
lowering protection by reducing the radium MCL even though
they acknowledged that a looser limit would present the same
health risk as intended by the current (5 pCi/l) one. MDH
was stunned by this announcement and even more confused
by EPA’s rationale for not changing the MCLs to 20/20 even
though they admitted that by considering current health risk
information they could justify a less stringent MCL than the
combined 5 pCi/l. Close on the heels of this revelation from
EPA headquarters came word from the EPA Region 5
office that rescinded the earlier agreement with MDH that
allowed for increased monitoring based on comparing
routine sample results with the proposed 20/20 MCLs.
Region 5 insisted that MDH immediately begin requiring
quarterly compliance monitoring for all Minnesota
community systems where routine radium results exceeded
5pCi/l. MDH was opposed to this and contended that it should
wait until the rule has been formally revised to remove the
uncertainty of not knowing what MCLs a water system will
actually have to comply with. EPA Region 5 rejected this
approach and insisted that MDH begin quarterly monitoring
Drinking Water Report
Again Reveals Good News
“So who needs bottled water?” was the lead sentence
in a May 6, 1998 article in the St. Paul Pioneer Press
regarding the annual report on drinking water quality in
Minnesota issued by the Minnesota Department of Health.
The Pioneer Press story continued, “Tests conducted in
Minnesota last year suggest health-conscious consumers
could do their budgets a favor and rely on that old
stand-by, tap water.”
MDH Commissioner Anne Barry announced the
results of 1997 monitoring of the state’s community water
supplies while addressing participants at the Minnesota
Water ‘98 conference in Minneapolis on May 5.
“Like our previous drinking water reports, this latest
report offers a highly reassuring picture of our state’s
drinking water infrastructure,” Barry said. “Once again,
we rarely found detectable levels of contamination—and
violations of applicable state or federal drinking water
standards were rarer still. And whenever problems were
discovered, we quickly took action to prevent any
potential health problems.
“In short, the problems we found were minimal—and
the system worked. Based on this report, we believe that
the people of Minnesota can continue to have confidence
in the high quality and safety of their drinking water.”
Barry also heralded the efforts of Minnesota water operators in the minimal disruption of drinking water supply
during two natural disasters—the tornadoes in southern
Minnesota and the 1997 floods—over the past 14 months.
at all systems exceeding 5 pCi/l. EPA Region 5 also
indicated if MDH was unwilling to proceed in this manner,
EPA could take actions directly against the water systems;
it could also delay Minnesota’s drinking water revolving fund
grant. Faced with these prospects, MDH capitulated and
agreed to begin quarterly monitoring beginning in July 1998
at the approximately 50 water systems that had one sample
radium result in exceedance of 5 pCi/l.
A meeting of the affected community water systems was
held on June 10 to inform the water systems of the situation
and describe the monitoring that will take place during the
next year. A representative from EPA Region 5 was in
attendance to present EPA’s position on the issue. MDH
encouraged the affected water systems to contact directly
EPA Headquarters and request that the rule be
reproposed so that full consideration can be given to health
risk considerations and also the magnitude of the costs
associated with having to meet a combined radium MCL of
5pCi/l. The only treatment method available to reduce
radium is softening— either ion exchange or lime—which
can be very expensive, especially for those cities with
multiple wells or treatment plants. MDH is hopeful that if
enough Minnesota water systems contact EPA with their
concerns, the radionuclide rule will be reopened and more
thoughtful consideration can be given to the health risk of
radium versus the costs of treatment.
3
Water Supply
East—New York City
This year marks the 100th anniversary of New York City as we now
know it.
In 1898, New York (already the largest city in the nation even though it
consisted of barely more than the island of Manhattan) was consolidated with
Brooklyn (then the nation’s third largest city) and nearly 40 other townships and communities
to form a new city, divided into five boroughs, that brought an increased demand for a variety
of services, none more important than an adequate supply of potable water.
New York continues as America’s largest city and, as such, has the nation’s largest
drinking water system. But while New Yorkers fret about bridges and subways and other
worries dealing with an aging and crumbling infrastructure, they continue to draw water
from taps with little thought of where it comes from. “Although the city’s water supply is
one of its major wonders, probably it is among all of them the least remarked, partly
because it is largely hidden from view and even more on account of its trifling cost,”
wrote Arthur Warner in a 1932 feature in the New York Times Magazine.
“With the natural metropolitan tendency to respect only that which is
expensive, the average citizen does not pause to consider a
product which costs three-fourths of a cent a day.”
Such complacency is not unique to New York. But the
sheer magnitude of this city’s drinking water supply,
treatment, and distribution process merits a closer look.
New York City now draws its drinking water from three upstate
During the 1600s, when most of the city’s population lived
in lower Manhattan, residents drew their water from local watersheds—the Delaware System, the Catskill System, and
the Croton System—to serve more than nine-million residents.
wells, streams, and ponds, including a 48-acre, spring-fed pond
known as the Collect. By the 1780s, though, the quality of
Early in the 20th century, the state authorized New York
the Collect had declined because of dumping of garbage, slop
City to purchase watershed land in the Catskill Mountains
buckets, and even dead animals. In 1803, the city began
(approximately 100 miles to the northwest) and to create new
filling the Collect and placing greater reliance on underground
reservoirs by damming streams and rivers. Residents of
sources and pump-operated public wells. The quality of the
several villages were forced to move as the towns were
well water varied greatly, and there were outbreaks of
flooded to create the reservoirs.
typhoid fever, yellow fever, and other diseases, capped by a
The entire New York City water supply system now
cholera epidemic that killed 3,513 New Yorkers in 1832.
encompasses three watersheds with a total area of 1,969
The need for a dependable source of water was becoming
square miles; it has a combined storage capacity of 550
more apparent, and three years later New York
billion gallons provided by 19 reservoirs and three controlled
voters approved the damming of the Croton River in
lakes and delivers, on average, 1.34 billion gallons a day to
Westchester County to the
the eight-million residents of
north and funneling the
New York City in addition to
collected water into the city.
another one-million people in
The 1842 opening of the
adjoining counties.
Croton Aqueduct—a 41The Croton watershed,
mile canal covered with
which supplied the original
stone and brick—set off a
solution to New York’s
great water celebration with
water problems, now
parades, fireworks, and
accounts for only ten percent
fountains shooting plumes of
of the water supplied to the
water 50 feet into the air.
city.
Having a dependable
However, there are still
supply of safe drinking
reminders of its legacy, none
water allowed the population
more prominent than the High
of New York to grow,
Bridge over the Harlem
eventually to the point that
River, connecting Manhattan
the Croton system was
and the Bronx, a portion of
unable to keep up with the
the original aqueduct which
city’s needs (even though it
is now a historic national
had been enlarged with a
landmark and a continuing
new dam and aqueduct, and The High Bridge over the Harlem River is a vestige of the original symbol of the significance of
a larger watershed).
water.
Croton Aqueduct.
4
Acr oss the
the USA
West—Arizona
Toward the other end of the contiguous United States from
New York City is an area whose challenges lie not in the
magnitude of the population it must serve but in the paucity
of the water it has to supply them. In terms of year-round
residents, Arizona ranks in the lower half of the fifty states,
although its population swells each winter with the onslaught
of northern residents escaping harsh climates and in the
summer with the hordes of tourists who come to enjoy the
state’s scenic natural treasures. No landmark in
Arizona receives more visitors than the Grand Canyon.
There is no natural source of drinking water on the south
rim of the Grand Canyon, even though it is this side that
attracts 90 percent of the visitors. The rock layers don’t trap
water close enough to the surface to successfully drill wells.
Water was supplied in different ways over the years,
including transport by train. In 1970, a 14-mile trans-Canyon
pipeline was completed, bringing water from Roaring Springs
on the north side of the Canyon. Large tanks store more
than 13 million gallons to serve the park, which uses over
600,000 gallons daily.
One mile south of the Grand Canyon’s south entrance is
Tusayan, a community of hotels and visitor amenities. One
of the hotels has been successful in drilling for water although,
for the most part, adequate water is still not available to the
144-acre community, and most of the major hotels have their
water hauled by truck from cities to the south.
Approximately 130 miles
southeast of the Grand
Canyon is evidence of how
inhabitants drew water from
the arid surroundings hundreds of
years ago. A limestone sinkhole, 470
feet wide and 55 feet deep, rimmed
by pueblos and cliff dwellings, was a
source of water to the fields of ancient
peoples. Fed by continuously flowing
springs, Montezuma Well, as the sinkhole
is called, was formed long ago by the
collapse of an immense underground
cavern.
Both the Hohokam and Sinagua
irrigated crops with the sinkhole’s
waters, and traces of irrigation ditches
dug during the 1200s—and now
thickly coated with lime—are still
visible to visitors. The National
Park Service, which now
administers the site, says
Montezuma Well has “all
the surprise of a lake and
fairly lush vegetation in
the midst of desert.”
Montezuma Well was a water source for ancient cultures.
Water is piped 14 miles from Roaring Springs to the Grand
Canyon’s south rim.
5
Roaring
Springs
Conversion of Test Wells
No Longer Allowed
Waterworks Operators Quiz
1. Cathodic protection means protection against:
a. contamination.
b. corrosion.
c. hardness.
d. infiltration.
In the past, communities have drilled “test wells” that were
not pre-approved by MDH and then converted them to
community drinking water supplies. Beginning July 1, 1998,
MDH will not allow the conversion of test wells into
community water supply wells.
If there is a chance that a well will be used as a
community water supply, the following steps must be
followed:
• The plans and specifications for the well(s) must be
approved before the well construction begins.
• A wellhead protection area preliminary delineation
worksheet must be submitted to the department.
• A well notification identifying the well as a community
public water supply well must be provided to the Well
Management Section at MDH.
• An emergency and water conservation plan must be
approved by the Minnesota Department of Natural
Resources.
Questions regarding any of these matters may be directed
to Michael Convery at 612/215-0818.
2. The maximum contaminant level goal of known or
probable carcinogens is:
a. set by the state.
b. the same as the maximum contaminant level.
c. zero.
d. the minimum detectable level of a given
contaminant.
3. Flammable liquids are those that have flash points:
a. below 100o F.
b. above100o F.
o
c. below 212 F.
d. above 32o F.
BONUS QUESTION
Translate: A plethora of individuals with expertise in
culinary techniques vitiate the potable concoction
produced by steeping certain comestibles.
Answers at bottom of page
DWRF Dates
Three APOs Issued
Here is the 1998-99 proposed timeline for the Drinking
Water Revolving Fund:
DWP Profile:
Cindy Cook
Cindy Cook has taken
over responsibility for water
operator certification and
training at MDH. Cindy had
worked for utilities and
water plants for the
cities of Brooklyn Center,
Robbinsdale, and Richfield.
Cindy was born and raised
in Brooklyn Park and now
lives in Hopkins. Her
family includes her folks,
Lorna and Bruce Cook
(Bruce is a retired water
operator), a sister and
brother-in-law, two nieces, and one nephew. Cindy enjoys
traveling to warm places, whether it’s taking a Caribbean
cruise or finding an excuse to visit friends in Las Vegas
every winter. Her hobbies include bad golf, home
improvement projects, and rollerblading.
PVC Q & A
Question: What type of polyvinyl chloride (PVC) piping
shall be used for watermains?
Answer: PVC piping between 4 and 12 inches in
diameter shall meet American Water Works Association
(AWWA) Standard C900. PVC piping between 14 and 36
inches shall meet AWWA Standard C905. It’s important to
note that AWWA Standard C900 refers to standard
dimension ratios of 14, 18, and 25. SDR 26 PVC piping is not
listed as part of the standard and shall not be used for
watermain installations.
Answers to Quiz
Too many cooks spoil the broth
BONUS QUESTION:
3. a
6
2. c
April
New Project Priority List established
New Intended Use Plan (IUP) opens
IUP closes
Notice and draft IUP distributed
Loan application materials sent
Grant application sent to Environmental
Agency
Deadline for plans and specifications
1. b
July 1
July 10
August 10
September 1
October
The Minnesota Department of Health has issued
administrative penalty orders to the following systems:
Claremont, PWS 1200001, $250 for failure to perform
bacteriological sampling
Florence, PWS 1420003, $250 for failure to sample for
lead and copper
Timberline Mobile Home Park, PWS 1680009, $250 for
failure to sample for lead and copper
All of the above orders will be forgiven if the systems
commit to and maintain 100 percent compliance with
monitoring and reporting requirements for one year.
In addition, the Attorney General’s office recently collected
$826 in penalties and fees from Tamarack Court, Inc., PWS
1730058 for failure to perform bacteriological, nitrate, and
lead and copper sampling.
Nitrate Situation Offers Opportunity for Multi-Agency Solutions
On the heels of an exceedance of the maximum
contaminant level for nitrate in southwestern Minnesota last
summer, the Minnesota Department of Health convened an
interagency workgroup to go beyond dealing with just the
exceedance and to study the larger problem of nitrate
nitrogen contamination in drinking water. Chaired by Bruce
Olsen of MDH, the workgroup contains representatives from
the Minnesota Department of Agriculture, Minnesota
Pollution Control Agency (MPCA), Board of Water and Soil
Resources, and Minnesota Department of Natural Resources
(DNR). The group considered and recommended a multipronged approach with strategies ranging from wellhead
protection to best management practices in addressing the
nitrate situation in the well fields operated by the LincolnPipestone Rural Water Supply District (LPRWSD).
Lincoln-Pipestone Rural Water
The LPRWSD—which serves 24 communities and more
than 2,800 farms—operates three well fields (Holland, Verdi,
and Burr), two of which are deemed vulnerable to nitrate
contamination.
The Holland well field, in Pipestone County, has five wells
that pump out of an unconfined sand and gravel aquifer. At
the land surface is an old stream channel, a trench carved
into clay and backfilled with sand and gravel (a common
phenomenon in southwest Minnesota). “It can yield lots of
water but is vulnerable,” says Olsen. Nitrate levels found in
water pumped from the Holland well field exceeded the
maximum contaminant level of 10 parts per million (MCL).
Water from the Verdi well field had nitrate levels approaching, but not exceeding, the MCL. The LPRWSD operates
five wells in the Verdi field that pump from a sand and gravel
aquifer that may exhibit semi-confined to unconfined hydraulic
conditions depending on the local geological setting.
The Burr well field is a better source in terms of
protection from nitrate contamination; however, pumping from
the Burr well field affects wetlands in Minnesota and South
Dakota. “New water supplies are hard to find in this part of
the state,” Olsen says.
Sources
Facing these challenges, the work group sought to identify
management strategies for reducing nitrate levels in the
Holland and Verdi well fields with the understanding that,
although similarities exist between potential nitrate sources
for the two fields, differences in soil and geologic conditions
as well as land use would likely lead to differing strategies.
In addition, much less was known about the Holland well
field than the Verdi well field, where the work group was
able to better define potential sources of nitrate nitrogen that
could be affecting the well fields by using existing agency
data and a survey of land owners in Verdi Township that had
been conducted by the Department of Agriculture.
No inventory exists of abandoned feedlots for the watershed area around the Holland well field, which includes dairy
and beef cattle yards that do not require a feedlot permit
from the Pollution Control Agency (although one is now
being prepared in addition to a survey of property owners).
In addition, current practices regarding application of
commercial fertilizer to fields are not known.
Recommendations
Armed with this information (or lack of information) the
workgroup identified several strategies they felt could help to
reduce nitrate levels. The strategies include the following:
Feedlot Management and Permitting—This would
involve MDH and MPCA cooperation on feedlot
permitting in geographically vulnerable wellhead
protection areas, a strategy that addresses concerns over
animal confinement facilities and manure spreading of
fields and one that can be applied to new or amended
permits once the wellhead protection areas for these
fields have been delineated.
State Groundwater Appropriations Permitting
Program—The DNR can use the water appropriations
program to limit groundwater withdrawals where
pumping causes surface water or groundwater
containing elevated nitrate levels to enter public water
supply wells. New high-capacity wells must be evaluated for their potential to cause the movement of nitrate
into groundwater resources that are used as a drinking
water supply.
Best Management Practices regarding Nutrient and
Nitrogen Management—Interviews with growers in
Verdi Township and within the St. Peter wellhead
protection area in Nicollet County demonstrated that
nitrogen application can be reduced without major yield
reductions. The Department of Agriculture will be
working with the University of Minnesota to review best
management practices for shallow soils overlying
shallow groundwater in this part of the state, a long-term
strategy that may reduce nitrate contamination
resulting from crop production.
In addition, the Department of Agriculture and
Minnesota Extension Service will notify businesses which
provide commercial fertilizer about best management
practices (BMPs) for the soils that are present in the
Holland and Verdi well fields. If BMPs are not followed
and water quality is unacceptable, the Department of
Agriculture will issue a water resource protection
requirement and BMPs will be enforceable.
Bruce Olsen noted that wellhead protection is being used
to address nitrate situations with several water systems in
the southwestern part of the state. He says that land owners
are being very cooperative about altering their practices and
even taking some land out of production.
“Land owners are definitely the solution, not the
problem,” Olsen concludes.
Between earth and earth’s atmosphere, the
amount of water remains constant; there is never
a drop more, never a drop less.
This is a story of circular infinity, of a planet
birthing itself.
—Linda Hogan
7
CALENDAR
Minnesota Section, American
Water Works Association
Annual Conference, September 2325, Rochester, Contact Jim Haugen, 612/
489-1051
*October 15, Southwest Waterworks
Operators’ School, Windom, Contact
Mark Sweers, 507/389-2501
*October 28, Central Water
Operators’ School, St. John’s University,
Collegeville, Contact Duane Johnson,
320/255-7225
*October 30, Southeast Water
Operators’ School, Northfield, Contact
Paul Halvorson, 507/285-7289
*December 1-3, Northwest Water
Operators’ School, Red River Inn,
Moorhead, Contact Stew Thornley, 612/
215-0771
*Suburban Superintendents School
October 6, Brooklyn Center Civic
Center, Contact John Hill, 612/531-1166
AWWA Teleconference
October 22, Risk Management, Contact Stew Thornley, 612/215-0771
American Water Works Association
October 6, Consumer Confidence
Reports, Contact Mayme Larson, 303/
347-6204 or Stew Thornley, 612/2150771
*Schools/meetings marked
with an asterisk include
a certification exam
Minnesota Rural Water Association
Contact Kyle Kedrowski, 218/685-5197
June 3, Operation and Maintenance,
Mantorville
June 17, Operation and Maintenance,
Middle River
*September 2, Operation and
Maintenance, Askov
September 16, Operation and
Maintenance, Fulda
September 30, Operation and
Maintenance, Twin Valley
October 7, Operation and
Maintenance, Coleraine
October 13, OSHA Safety, Morris
October 14, OSHA Safety, St. Cloud
October 14, Operations for
Nonmunicipal Systems, Cass Lake
October 20, OSHA Safety, Grand
Rapids
October 21, OSHA Safety, Hinckley
November 4, Operations for
Nonmunicipal Systems, St. Peter
November 17, Risk Reduction in
Public Utilities, Marshall
November 18, Risk Reduction in
Public Utilities, Alexandria
December 9, Winterizing Your Water
System, Bemidji
December 10, Winterizing Your
Water System, Eveleth
December 15, Securing Financing for
Small Systems, Duluth
December 16, Securing Financing for
Small Systems, Belle Plaine
Minnesota Department of Health
121 E. 7th Place Suite 220
P. O. Box 64975
St. Paul, Minnesota 55164-0975
ADDRESS CORRECTION REQUESTED
Minnesota Pollution Control
Agency
(Wastewater Operator Training)
Contact Emily Armistead, 612/296-7251
June 23-25, Wastewater Treatment
Technology Seminar, Kelly Inn, St. Cloud
September 15-16, Land Application
of Biosolids Seminar, Holiday Inn,
Detroit Lakes
September 22-24, Wastewater
Treatment Technology Seminar,
Ruttger’s, Grand Rapids
September 22-24, Land Application
of Biosolids Seminar, Holiday Inn,
Rochester
October 14, Pond Troubleshooting
Workshop, Holiday Inn, St. Cloud
November 4-6, Collection System
Basic Workshop, Maplewood Inn
November 13, Industrial Wastewater
Treatment Workshop, Thunderbird
Hotel, Bloomington
November 18-20, Land Application of
Biosolids Seminar, Radisson, Duluth
New Area Code
for MDH Metro Office
On July 12, the area code for
Ramsey County, which includes the
MDH Metro Office, will switch to
651. Callers can still use either the
existing or new area code through the
end of the year but will have to use
the new area code beginning in 1999.