2021 Water Quality Report Public Information Brochure Copyrighted
J une 7, 2021
City of Dubuque Consent Items # 10.
City Council Meeting
ITEM TITLE: 2021 Water Quality Report Public Information Brochure
SUM MARY: City Manager providing a copy of the 2021 Water Quality Report public
information brochure.
SUGGESTED Suggested Disposition: Receive and File
DISPOSITION:
ATTACHMENTS:
Description Type
2021 Water Quality Report Supporting Documentation
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Drinking Water Information Source Water Information T� � ��� � ��
Drinking water, including bottled water, may The City of Dubuque obtains water from the sand
reasonably be expected to contain at least small and gravel of the Apple-Plum Alluvial aquifer and the ate r
amounts of some contaminants. The presence of Jordan (Cambrian-Ordovician) aquifer. Every aquifer
contaminants does not necessarily indicate that has a degree of susceptibility to contamination �
water poses a health risk. More information about because of the characteristics of the aquifer, �� ��
contaminants or potential health effects can be overlying materials, and human activity including
obtained by submitting a form on the Environmental contamination from leaking underground storage
Protection Agency's website at www.epa.gov/ground- tanks, contaminant spills, and excess fertilizer
water-and-drinking-water or from the Safe Drinking application. Susceptibility to contamination � O��
Water Hotline (800-426-4791). generally increases with shallower aquifers because
the characteristics of the aquifer and the overlying ..,,:_....�.r
p g y g p p p p p Y � I,.._ .< � -:-��,--,� ;-=_. .- - � "
Some eo le ma be more vulnerable to contaminants materials rovide little rotection from contamination I � '
in drinkin water than the eneral o ulation. at the land surface. Susce tibilit to contamination
--
Immuno-compromised persons including those with generally decreases with deeper wells in the Jordan
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cancer undergoing chemotherapy, persons who have aquifer because the characteristics of the aquifer and , � �
undergone organ transplants, people with HIV/AIDS the overlying materials provide moderate protection
or other immune system disorders, some elderly, and from contamination at the land surface.
infants can be particularly at risk from infections.
These people should seek advice about drinking water The Apple-Plum Alluvial aquifer is considered to be
from their health care providers. EPA/CDC guidelines highly susceptible to contamination, while the Jordan
on appropriate means to lower the risk of infection by (Cambrian-Ordovician) aquifer has been determined to � �
Cryptosporidium and other microbial contaminants are be slightly susceptible to contamination. A detailed R
available on the Environmental Protection Agency's evaluation of your source water was completed by L � ,
website at www.epa.gov/ground-water-and-drinking- the lowa Department of Natural Resources, and is ,�.:.;,. `
water or from the Safe Drinking Water Hotline (800- available on our website, www.cityofdubuque.org/ -
426-4791). water. You may also call 563-589-4291 to obtain a �,,���'
copy of the report. ��=�'=i��
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Dubuque's average household water rate -_--�;,���`, -
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for fiscal year 2022 is $31.67 per month. Have you signed -- -- -�- - '"�'� � =�-��
This is the second lowest of lowa's largest cities up for WaterSmart? �_ � ; �� , � - I :'! , . . ..
that soften their water, The highest (West Des � w�°w�tl• '� � _ '
• View and pay bills - ,. � . . '
Moines is 27% hi her than Dubu ue . ���� � �� ' ' �
) 9 q Track daily water usage � �� ,l .
and the average is 10% higher • View tips on how to save ,� i,` '�;r�� '' "'��
_. - "�"a��' s� �i''�:
than Dubuque. • Sign up for leak alerts...and more
100 gallons ,� `� .`� � SIGN UP TODAY! • ' ' ' ' • ' ' • ' ' -
of City water costs onty ��� �� www.cityofdubuque.org/watersmart
$0.53 :,� �' ��,��
THE CITY OF
Compare to 100 gallons of bottled �` DUB E � i �l�j
W8t21'��6.9 OZ.8t��.59 22Ch Mcisterpieceontl�eMississippi
at a convenience store) �r�=:�
costs over $1,200! ��� �, ,L ���,� �'���
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Table Definitions
Action Level (AL)-The concentration of a contaminant that, if exceeded, triggers treatment or Maximum Residual Disinfectant Level (MRDL)-The highest level of a drinking
other requirements that a water system must follow. water disinfectant allowed in drinking water. There is convincing evidence that
LRAA- Locational Running Annual Average addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Contaminant Level (MCL)-The highest level of a contaminant that is allowed in Maximum Residual Disinfectant Level Goal (MRDLG)-The level of a drinking water
drinking water. MCLs are set a close to the MCLGs as feasible using the best available disinfectant below which there is no known or expected risk to health.
technology. N/A- Not Applicable ppm- parts per million
Maximum Contaminant Level Goal (MCLG)-The level of a contaminant in drinking water below ND- Not Detected RAA- Running Annual Average
which there is no known or expected risk to health. MCLGs allow for a margin of safety. ppb- parts per billion SGL- Single Sample Result
DISTRIBUTION SYSTEM REPORT
ANALYTE MCL-(MCLG) COMPLIANCE RANGE DA7'E VIOLATION TYPICAL SOURCE
TYPE VALUE MIN MAX
Total Tiihalomethanes(ppb) 80(N/A) LRAA 48 39 54 12/31/2020 NO Ry-products of drinking water chlorination
Total Haloacetic Acids(ppb) 60(N/A) LRAA 9 7 12 12/31/2020 NO By-products of drinking water chlori�ation
MRDL=4.0
Total Chlorine(ppm) (MRDLG=4.0) RAn 1.1 031 1.71 12/31/2020 NO Water additive uscd to control microbes;disinfection
Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other waterborne
Total Coliform Bacteria TT TT RTCR 0 positivc N/A N/A 2020 NO atho ens ma be rresent,or that a otientiaL athwa exists throu h which contami�ation ma e�ter the drinki�
� � samples P g Y P P p Y � Y �
water.
FINISHED WATER TAP REPORT
COMPLIANCE RANGE
ANALYTE MCL MCLG DATE VIOLATION TYPICAL SOURCE
TYPE VALUE MIN NIAX
Nitrate[as N](ppm) 10 10 SGL 0.6 N/A N/A 2020 NO Runofffrom feRiLizer use;Leaching from scptic tanks;sewage;Erosion of�atura]deposits.
Water additive which promotes stro�g teeth;Erosion ofnahxral deposits;Discharge from fertilizer a�d aluminum
Fluoride(ppm) 4 4 MCL 0.66 0.42 3.08 2020 NO factories
Sodium(ppm) N/A N/A SGL 25 N/A N/A 7/23/2018 NO Erosion of natural deposits;Added to water during treahnent process
Erosion of naharaf deposits of certain minerals that are radioactive and may emit a form of radiation known as alpha
Gross Npha exduding Oranium(piGL) 15 0 MCL Q2 N/A N/A 2018 NO radialion.
LEAD AND COPPER REPORT
SAMPLES COMPLIANCE DETECT
ANALYTE AL MCLG EXCF:ED DATE VIOLATION TYPICALSOURCE
TOTAL TYPE VALUE MIN. MAX.
AL
Lead(ppb) I 5 0 34 I 90th 7.00 ND 23 2020 NO Corrosion of household plumbing systems;Erosion of natural deposits;Leaching from
wood preservatives
Copper(ppm) 13 13 34 0 90th 0.04 ND 0.05 2020 NO Corrosion of household plumbing systems;Erosion ofnatural deposits
UNREGULATED CONTAMINANT MONITORING RULE UCMR 4 REPORT
RAW WATER
ANALYTE NO.OF SAMPLES AVERAGE RANGE �,E� COMMENTS
VALUE MIN MAX
Bromidc(ppb) 2 30.50 21.0 40.0 2018 These samples were collected as part ofthe requirements for UCMR 4
Total Organic Carbon(ppm) 2 L95 LS 2.1 20 LS These samples were collected as part of Lhe requirements for UCMR 4
FINISHED WATER
Manga�ese(ppb) 2 1.50 LO 2.0 2018 "I'hcsc samplcs wcrc collcctcd as part of thc rcquircmcnts for UCMR 4
Gcrmanium(ppb) 2 <0.3 <03 <03 2018 These samples were collected as part of the requirements for UCMR 4
DISTRIBUTION SYSTEM REPORT
Chloroacetic acid(ppb) 2 <2A <2.0 <2.0 2078 Thcsc samplcs wcrc collcetcd as paR ofthc rcquircmcnts for UCMR 4
Bromoacetic acid(ppb) 2 <03 <03 <03 2018 These samples were collected as part of the requirements for UCMR 4
Dichloroacetic acid(ppb) 2 6.60 610 7.10 2018 These samples were collected as paR of the requirements for UCMR 4
Trichloroacetic acid(ppb) 2 2.20 1.80 2.60 2018 These samples were collected as paR of the requirements for UCMR 4
Bromochloroacetic acid(ppb) 2 2.70 2.50 2.90 2018 These samples were collected as paR of the requirements for UCMR 4
Dibromoacetic acid(ppb) 2 1.05 1.00 1.10 2018 These samples were collected as paR of the requirements for UCMR 4
Bromodichloroacetic acid(ppb) 2 7.7 5 1.00 130 207 8 These samples were collected as paR of the requirements for UCMR 4
Chlorodibromoacetic acid(ppb) 2 0.61 0.52 0.69 2018 These samples were collected as paR of the requirements for UCMR 4
Tribromoacetic acid(ppb) 2 0.10 <0.2 2.0 2018 These samplcs were collected as part of the requirements for UCMR 4
Note: Contaminants with dates, indicate results from the most recent testing done in accordance with regulations.
Lead & Copper Reporting
If present, elevated levels of lead can cause serious Roosevelt Street Water Tower
health problems, especially for pregnant women and
young children. Lead in drinking water is primarily C� -���� vrt`f��,,,f'`-�- ,;,�;
from materials and components associated with Th � �, ' k tc�but��rr '"f �'
service lines and home plumbing. The City of Dubuque im �� ;`'rn '�' +'� � , �,a� �,i j __- _-
Water De artment is res onsible for rovidin hi h "�""�°..� ��
p p P g g th e� anrl Peru Road area. T-l�e 120 f't:tOwe ".
quality drinking water, but cannot control the variety loc section of Roosevelt Streefi'and`" ': =
( "�
of materials used in plumbing components. When Sk � � �'K ''�' Qst of just over $5 milJic�t - � -
your water has been sitting for several hours, you can Wa ' I �ving Fund loarr program
minimize the potential for lead exposure by flushing co nd�savings.
your tap for 30 seconds to 2 minutes before using the __ - �=� .-•- -- - ' '`
water for drinking or cooking. '� �,, ' �-`� �,:� � � � �`;'�
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v� � - �y � .�� .. � _ _ -- �
If you are concerned about lead in your water, you may ', � ���,. I , _.,; $ � ' �
wish to have your water tested. Information on lead C _ s `�'�' �_, ( ' �� " , ��-;�. ,�; ���
in drinking water, testing methods, and steps you can _ �-�~ " � y ' �: ' � `� � = - , �`��
In 21, Mood.y;� rvices u�grade�he������ - .,
take to minimize exposure is available from the Safe - -- -- , -
Drinking Water Hotline or at Dub ' Water Enterprise's.outs�anditlg reV�nu�� �w�l fxnm�, e � �4,- _. :
A2. Th terprise has $2 million-tn I t of '`' - ' �"A � c
http://www.epa.gov/safewater/lead. �y ' �
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wh ic reven�on �i �
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CITY OF DUBUQUE cas u i � '. � ital and ��`' � � � ° � �
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