2011 Water Report AffidavitCity of Shorewood
STATE OF MINNESOTA )
) SS.
COUNTY OF HENNEPIN )
Richard Hendr ickson, being duly sworn on
an oath, states or affirms that he is the Chief
Financial Officer of the newspapers) known
as
Excelsior, Shorewood Sun - Sailor
and has full knowledge of the facts stated
below:
(A) The newspaper has complied with all of
the requirements constituting qualifica-
tion as a qualified newspaper as provid-
ed by Minn. Stat. §331A.02, §331A.07,
and other applicable laws as amended.
(B) The printed public notice that is attached
was published in said newspapers)
once each week, for one successive
week(s); it was first published on Thurs-
day, the_ 7, day of June
2012, and was thereafter printed and
published on every Thursday to and in-
cluding Thursday, the ----- day of
2012; and printed
below is a copy of the lower case alpha-
bet from A to Z, both inclusive, which is
hereby acknowledged as being the size
and kind of type used in the composition
and publication of the notice:
BY
CFO
Subscribed and sworn to or affirmed
before me on this _ 7 day of
June ,2012.
e '
Notary Public
Y A DIANE L. EIIASON
� � NOTARYfxUBUc- MINNESOTA
�y ��a._� My Con he Exp. Jan. 31, 2015
(Official Publication)
City of Shorewood
2011 Drinking Water Report
the City of Shorewood is issuing the results of monitoring done on its drinking water for the period from January 1 to December
31, 2011. The purpose of this report Is to advance consumers' understanding of drinking water and heighten awareness of the
need to protect precious water resources.
Source of Water
l'he
City of Shorewood provides drinking waterto its residents from the following groundwater sources'.
• Purchases treated water from the City of Chanhassen which obtains its water from wells In the Prairie Du Chien- Jordan and
Prairie Of Chien - Galesville aquifers
• Six wells ranging from 326 to 640 feet deep, that draw water from the Prairie on Chien - Jordan, Prairie Du Chien Group, and
Franconia - Ironton- Galesville aquifers.
The water provided to customers may meetdrinang water standards, but the Minnesota Department of Health has also made a
determination as to how vulnerable the source of water may be to future contamination incidents. If you wish to obtain the entire
source water assessment regarding your drinking water, please call 651- 201 -4700 or 1- 800 -818 -9318 (and press 5) during nor-
mal business hours. Also, you can view it on line at www.health.state.mn. uAdivs /eh/water/awp/swa.
Call 952 - 960 -7913 if you have questions about the City of Shorewood drinking water or would like information about opportuni-
ties for public participation in decisions that may affect the quality of the water
Results of Monitoring
No contaminants were detected at levels that violated federal drinking water standards. However, some contaminants were de-
tected In trace amounts that were below legal limits. The table that follows shows the contaminants that were detected In trace
amounts last year. (Some contaminants are sampled less frequently than once a year; as a result, not all contaminants were sam-
pled for in tam 1, If any of these contaminants were detected the last time they were sampled for, they are Included in the table
along with the date that the detection occurred.)
Key to abbreviations'
MCLG- Maximum Contaminant Level Goal: The level of a contaminant In drinking water below which there is no known or ex-
pected risk to health. MCLGs allow for a margin of safety.
MCL- Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. MCLS are set as close
to the MCLGs as feasible using the best available treatment technology.
MRDL- Maximum Residual Disinfectant Level.
MRDLG— Maximum Residual Disinfectant Level Coal.
AL Action Level: The concentration of a contaminant which, if exceeded, triggers treatment
or other requirement which a water
system must follow.
90th Percentile Level This is the value obtained after disregarding 10 percent of the samples taken that had the highest levels.
(For example, in asituation in which 10 samples were taken, the 90th percentile level is determined by disregarding the highest
result, which represents 10 percent of the samples.) Note: In situations in which only
5 samples are taken, the average of the
two with the honest levels Is taken to determine the 90th percentile level
pCis - PicoCuries per liter (a measure of radioactivitm .
ppm- -Parts per million, which can also be expressed as milligrams per liter (mg/I)-
ppl frahs per billion, which can also be expressed as micrograms per Inter (Ig /1).
hall Detection.
N/A Not Applicable (does not apply).
Level Pound
Contaminant MCLG MCL Range Average
(units) (2011) /Result'
Typical Source of Contaminant
Alpha Emitters (pCO) 0 15.4 N/A 8
Erosion of natural deposits.
(07/07/2009)
Arsenic (pool 0 10 1- 6.87 6.87
Erosion of natural deposits;
Runoff from orchards, Runoff from
glass and electronics production
wastes.
Barium (?prim 2 2 .0586 - .231 23
Discharge of drilling wastes; Dis
charge from metal refineries; Era-
sicn of natural depcsl[s.
-- —
Combined 0 5.4 N/A 38
Erosion of natural deposits.
Fluoride (ppm) 4 4 64 -1 3 1.09 State of Minnesota requires all mu-
nicipal water systems to add fluo-
ride to the drinking water to
promote strong teeth; Erosion of
natural deposits; Discharge from
Haloacetic Acids 0 60 N/A 2.8 By- product of drinking
HAAS (pool water disinfection.
TTHM (Total 0 80 N/A 1.9 By- product of drinking
[dhalomethanes) (pact water disinfection.
`This is the value used to determine compliance with federal standards- It sometimes is the highest value detected and some-
times is an average of all the detected values. If It is an average, it may contain sampling results from the previous year.
While your drinking water meets EPA's standard for arsenic, it does contain low levels of arsenic EPA's standard balances the
current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water. EPA con-
tinues to research the health effects of low levels of arsenic, which Is a mineral known to Cause concern humans at high con-
centrations and is linked to other health effects such as skin damage and circulatory problems.
Contaminant (units) MRDLG MRDL "" " "' Typical Source of Contaminant
Chlorine (ppm) 4 4 .2 -2 1.04 Water additive used to control mi-
" *Highest and Lowest Monthly Average.
"° *Highest Quarterly Average.
Contaminant (units) MCL.G AL 90% 4 sites Typical Source of Contaminant
Level over AL
Copper (Glom? 1 13 59 0 out of 20 Corrosion of household plumbing
systems', Erosion of natural
deposits.
Lead(gab) 0 15 13.5 2 out of 20 Corrosion of household plumbing
systems; Erosion of natural
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead
in drinking water is primarily from materials and components associated with service lines and home plumbing. City of Shore-
wood is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing cem nd-
users. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap
for 30 seconds to 2 minutes before using water for drinking or cooking_ It you are concerned about lead in your water, you may
wish to have your water tested- Information on lead in drinking water, testing methods, and steps you can take to minimize expo-
sure Is available from the Safe Drinking Water Hotline or at http : / /www_epa- gov /safewatedlead.
Some contaminants do not have Maximum Contaminant Levels established for them. These unregulated contaminants are as-
sessed using state standards known as health risk limits to determine if they pose a threat to human health. If unacceptable Iav-
els of an unregulated contaminant are found, the response is the same as if an MCL has been exceeded', the water system must
inform Its customers and take other corrective actions. In the table that follows are the unregulated contaminants that were us-
leered:
Level Found
Contaminant (units) Range Average/
(2011'r Result Typical Source of Contaminant
Sodium (ppm) 4.26 -21.2 21.2 Erosion of natural deposits.
Sulfate leper) nd -19.5 19.5 Erosion of natural deposits.
Compliance with National Primary Drinking Water Regulations
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and
wells. As water travels over the surface of the land or through the ground, It dissolves naturally occurring minerals and. In some
cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Contaminants that may be present in source water include:
• Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, actual
rural livestock operations, and wildlife.
• Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban stormwater runoff, in-
dustrial or domestic wastewater discharges, oil and gas production, mining, or farming.
• Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and resl-
denHal uses.
• Organic chemical contaminants, including synthetic and volatile organic chemicals, which are by products of industrial process-
es and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.
• Radioactive contaminants, which can be naturally occurring or be the result of all and gas production and mining acadmes,
in order to ensure that tap water is safe to drink, the U. S, Environmental Protection Agency (EPA) prescribes regulations which
limit the amount of certain contaminants in water provided by public water systems. Food and Drug Administration regulations
establish limits for contaminants In bottled water which must provide the same protection for public health.
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The
presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and
potential health effects can be obtained by calling the Environmental Protection Agency's Safe Drinking Water Hotline at '1 800
4264791.
Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno- compro-
mised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants,
people with HIV /AIDS or other immune system disorders, some elderly, and infants can be particularly at risk from in-
fections. These people should seek advice about drinking water from their health care providers. EPA/CDC guidelines
on appropriate means to lessen the risk of infection by Crypeasporidium and other microbial contaminants are available
from the Safe Drinking Water Hotline at 1- 800- 426 -4791.
(Jun. 7, 2012)
Af -2011 DrinkingWaterRepou