2020 Consumer Confidence Water Quality ReportCity of Dubuque Consent Items # 5.
ITEM TITLE:
SUMMARY:
SUGGESTED DISPOSITION:
Copyrighted
May 18, 2020
2020 Consumer Confidence Water Quality Report
City Manager providing notice that the City of Dubuque will
be publishing its annual consumer confidence report
documenting the 2019 water quality results.
Suggested Disposition: Receive and File
ATTACHMENTS:
Description
Consumer Confidence Water Quality Report-MVM
Memo
Staff Memo
CCR Report
Type
City Manager Memo
Staff Memo
Supporting Documentation
Masterpiece on the Mississippi
Dubuque
kritil
All-A.aia City
111111
2007.2012.2013
2017*2019
TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: City of Dubuque Consumer Confidence Water Quality Report 2020
DATE: May 10, 2020
Water Department Manager Denise Blakeley Ihrig is providing notice that the City of
Dubuque will be publishing its annual consumer confidence report documenting the
2019 water quality results.
The City of Dubuque drinking water met all state and federal water quality requirements
and had no drinking water violations in 2019.
7'
Mic ael C. Van Milligen
MCVM:jh
Attachment
cc: Crenna Brumwell, City Attorney
Teri Goodmann, Assistant City Manager
Cori Burbach, Assistant City Manager
Denise Blakeley Ihrig, Water Department Manager
Masterpiece on the Mississippi
TO: Michael C. Van Milligen, City Manager
FROM: Denise Blakeley lhrig, Water Department Manager
DATE: May 8, 2020
RE: City of Dubuque
Consumer Confidence Water Quality Report 2020
Dubuque
abides City
2007.2012,2013
2017*2019
PURPOSE
The purpose of this memorandum is to provide notification that the City of Dubuque will be
publishing its annual consumer confidence report documenting the 2019 water quality results.
BACKGROUND
The Iowa Administrative Code (the Code) 567-42.1(2) identifies the notification and procedure
requirements for publicly owned and operated water supplies. The purpose of the notification
procedure is to protect public health. The Iowa Department of Natural Resources assists local
water supply owners with compliance of the Code, and provides a detailed report containing
information regarding the water quality of each public water supply.
DISCUSSION
The reports are required to be published and distributed to each water system's customers on
or before July 1, 2020. The report may be found digitally at
www.cityofdubuque.org/2020waterquality. Hard copies will also be available from the following
locations, the Eagle Point Water Treatment Plant, Water Distribution Office in the Municipal
Service Center, City Hall, the City Hall Annex, Multicultural Family Center, Carnegie -Stout
Public Library and upon request by contacting the Water Department.
The City of Dubuque drinking water met all state and federal water quality requirements and had
no drinking water violations in 2019.
REQUESTED ACTION
I respectfully request the Consumer Confidence Report be placed on file.
Attachment: 2020 Consumer Confidence Report
Cc: Mary Rose Corrigan, Health Service Manager
Randy Gehl, Public Information Office
Chris Kohlmann, Information Services Manager
Jenny Larson, Director of Finance and Budget
Gus Psihoyos, City Engineer
Rick Steines, Fire Chief
Tom Berger, Emergency Management
Drinking Water Information Source Water Information
THE CITY OF
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 posed a health risk. More information about
contaminants or potential health effects can be
obtained by submitting a form on the Environmental
Protection Agency's Website at www.epa.gov/ground-
water-and-drinking-water or from the Safe Drinking
Water Hotline (800-426-4791).
Some people may be more vulnerable to contaminants
in drinking water than the general population.
Immuno-compromised 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 infections.
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
Cryptosporidium and other microbial contaminants are
available from the Environmental Protection Agency's
Website, www.epa.gov/ground-water-and-drinking-
water or from the Safe Drinking Water Hotline (800-
426-4791).
100 gallons
of City water
costs only
$0.51
Compare to
100 gallons of
bottled water
(16.9 az. at
$1.59 each at a
convenience store)
costs over
$1,200!
The City of Dubuque obtains water from the sand
and gravel of the Apple -Plum Alluvial aquifer
and the Jordan (Cambrian -Ordovician) aquifer.
Every aquifer has a degree of susceptibility to
contamination because of the characteristics of
the aquifer, overlying materials, and human activity
including contamination from leaking underground
storage tanks, contaminant spills, and excess
fertilizer application. Susceptibility to contamination
generally increases with shallower aquifers because
the characteristics of the aquifer and the overlying
materials provide little protection from contamination
at the land surface. Susceptibility to contamination
generally decreases with deeper wells in the Jordan
aquifer because the characteristics of the aquifer and
the overlying materials provide moderate protection
from contamination at the land surface.
The Apple -Plum Alluvial aquifer is considered to be
highly susceptible to contamination, while the Jordan
(Cambrian -Ordovician) aquifer has been determined
to be slightly susceptible to contamination. A detailed
evaluation of your source water was completed by
the Iowa Department of Natural Resources, and is
available on our website at www.cityofdubuque.org/
water. You may also call 563-589-4291 to obtain a
copy of the report.
Have you signed
up for WaterSmart?
• View and pay bills
• Track daily water usage
• View tips on how to save
• Sign up for leak alerts...and more
SIGN UP TODAY!
www.cityofdubuque.org/watersmart
WD004-050120
Masterpiece on the Mississippi
1�1
Masterpiece on the Mississip
2020
r
www.
CITYOFDUBUQUE.ORG
/WATER
Roosevelt Street Water Tower
Project Update
The 1.25 million gallon elevated tower,
along with distribution improvements, is a
long-awaited project which will increase
water pressure to customers in and
around the Roosevelt Street and Peru Road
area. The tower, which will stand 120 ft.
tall, is located on a parcel north of the
intersection of Roosevelt Street and Sky
Blue Drive. The project is scheduled to be
completed and online by November 2020,
at a total project cost of $5.2 million.
The project is funded through the State
Revolving Fund loan program combined
with local water fund savings.
CAPACITY:
1.25 million
gallons
XI
44444
PRESSURE:
Increase in
Zone 2 pressure
CONTRACTORS:
Tower: McDermott, Int.
Infrastructure:
Portzen Construction
o
TOTAL PROJECT
COST:
$5,227,672
TARGET COMPLETION
DATE:
November 2020
2019
Drinking Water Summary
Dubuque's Water Department is proud of the
high quality of our water supply, which meets
all state and federal drinking water quality
requirements.
We are pleased to inform you that Dubuque
had no drinking water violations in 2019.
The City's water quality testing results
shown below, includes testing for regulated
contaminants that were at detectable levels
in the distributed water. The contaminants
or analytes are reported in comparison to a
maximum contaminant level (MCL) established
by the U.S. Environmental Protection Agency's
(EPA) Safe Drinking Water Act. Testing is not
required for each parameter every year.
Water supplies, including the City of Dubuque,
participated in a study with the EPA related
to the Unregulated Contaminant Monitoring
Rule (UCMR). The USEPA establishes a new
list of contaminants to be monitored and
the conditions for that monitoring. The rule
benefits the public health by providing the EPA
with valid data on the National occurrence of
selected contaminants. Under UCMR Round
4, all community water systems, and non -
transient, non -community water systems serving
more than 10,000 persons must participate in
assessment monitoring.
For questions regarding this information, please
contact Denise Blakeley Ihrig, P.E., Water
Department Manager, at 563-589-4291.
1
Table Definitions
Action Level (AL) - The concentration of a contaminant that, if exceeded, triggers treatment
other requirements that a water system must follow.
LRAA - Locational Running Annual Average
Maximum Contaminant Level (MCL) - The highest level of a contaminant that is allowed in
drinking water. MCLs are set a close to the MCLGs as feasible using the best available
technology.
Maximum Contaminant Level Goal (MCLG) - The level of a contaminant in drinking water below
which there is no known or expected risk to health. MCLGs allow for a margin of safety.
or Maximum Residual Disinfectant Level (MRDL) - The highest level of a drinking
water disinfectant allowed in drinking water. There is convincing evidence that
addition of a disinfectant is necessary for control of microbial contaminants.
Maximum Residual Disinfectant Level Goal (MRDLG) - The level of a drinking water
disinfectant below which there is no known or expected risk to health.
WA - Not Applicable
ND - Not Detected
ppb - parts per billion
ppm - parts per million
RAA - Running Annual Average
SGL - Single Sample Result
DISTRIBUTION SYSTEM REPORT
ANALYTE
MCL - (MCLG)
COMPLIANCE RANGE
DATE
VIOLATION
TYPICAL SOURCE
TY
MIN
MAX
Total Trihalomethanes (ppb)
Total Haloacetic Acids (ppb)
Total Chlorine (ppm)
Total Coliform Bacteria
80 (N/A)
60 (N/A)
MRDL = 4.0
(MRDLG = 4.0)
TT (TT)
SGL
SGL
RAA
RTCR
45
7
1.1
2 sample
positive
.
39
7
ND
N/A
45
7
1.77
N/A
11/21/19
11/21/19
6/30/19
8/31/20
NO
NO
NO
NO
By-products of drinking water chlorination
By-products of drinking water chlorination
Water additive used to control microbes; disinfection
Coliforms are bacteria that are naturally present in the environment
and are used as an indicator that other waterborne pathogens may be
prresent, or that a potiential pathway exists through which
contamination may enter the drinking water.
FINISHED WATER TAP REPORT
I.
ANALYTE
MCL MCLG
COMPLIANCE
RANGE
DATE
VIOLATION
TYPICAL SOURCE
TYPE
VALUE
MIN
MAX
Nitrate [as N] (ppm)
Fluoride (ppm)
Sodium (ppm)
Gross Alpha excluding Uranium (piC/L)
10
4
N/A
15
10
4
N/A
0
SGL
MCL
SGL
MCL
0.54
0.68
25
<2.2
N/A
0.45
N/A
N/A
N/A
0.94
N/A
N/A
2019
2019
7/23/18
2018
NO
NO
NO
NO
Runoff from fertilizer use; Leaching from septic tanks; sewage;
Erosion of natural deposits.
Water additive which promotes strong teeth; Erosion of natural
deposits; Discharge from fertilizer and aluminum factories
Erosion of natural deposits; Added to water during treatment
process
Erosion of natural deposits of certain minerals that are radioactive
and may emit a form of radiation known as alpha radiation.
LEAD AND COPPER REPORT
ANALYTE
AL i
MCLG
SAMPLES
COMPLIANCE
DETECT
DATE
VIOLATION
TYPICAL SOURCE
Mi ii
TOTAL
EXCEED AL
TYPE
VALUE
MIN.
MAX.
Lead (ppb)
Copper (ppm)
15
1.3
0
1.3
33
33
0
0
90th
90th
3.00
0.04
ND
ND
9
0.05
2019
2019
NO
NO
Corrosion of household plumbing
systems; Erosion of natural deposits;
Leaching from wood preservatives
Corrosion of household plumbing
systems; Erosion of natural deposits
UNREGULATED CONTAMINANT MONITORING RULE (UCMR 4) REPORT
RAW WATER
ANALYTE NO. OF SAMPLES
AVERAGE
VALUE
RANGE
YEAR
COMMENTS
MIN
MAX
Bromide (ppb)
2
30.50
21.0
40.0
2018
These samples were collected as part of the requirements for UCMR 4
Total Organic Carbon (ppm)
2
1.95
1.8
2.1
2018
These samples were collected as part of the requirements for UCMR 4
FINISHED WATER i
Manganese (ppb)
2
1.50
1.0
2.0
2018
These samples were collected as part of the requirements for UCMR 4
Germanium (ppb)
2
<0.3
<0.3
<0.3
2018
These samples were collected as part of the requirements for UCMR 4
DISTRIBUTION SYSTEM REPORT
Chloroacetic acid (ppb)
2
<2.0
<2.0
<2.0
2018
These samples were collected as part of the requirements for UCMR 4
Bromoacetic acid (ppb)
2
<0.3
<0.3
<0.3
2018
These samples were collected as part of the requirements for UCMR 4
Dichloroacetic acid (ppb)
2
6.60
6.10
7.10
2018
These samples were collected as part of the requirements for UCMR 4
Trichloroacetic acid (ppb)
2
2.20
1.80
2.60
2018
These samples were collected as part of the requirements for UCMR 4
Bromochloroacetic acid (ppb)
2
2.70
2.50
2.90
2018
These samples were collected as part of the requirements for UCMR 4
Dibromoacetic acid (ppb)
2
1.05
1.00
1.10
2018
These samples were collected as part of the requirements for UCMR 4
Bromodichloroacetic acid (ppb)
2
1.15
1.00
1.30
2018
These samples were collected as part of the requirements for UCMR 4
Chlorodibromoacetic acid (ppb)
2
0.61
0.52
0.69
2018
These samples were collected as part of the requirements for UCMR 4
Tribromoacetic acid (ppb)
2
0.10
<0.2
2.0
2018
These samples 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 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. The City of Dubuque Water
Department is responsible for providing high quality drinking water, but cannot control the
variety of materials used in plumbing components. 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.
If you are concerned about lead in your water, you may wish to have your water tested, please
contact the City of Dubuque Water Department on 563-589-4291. Information on lead in
drinking water, testing methods, and steps you can take to minimize exposure is available from
the Environmental Protection Agency's website at www.epa.gov/safewater/lead.
Y OF DUBUQUE go
WA ER DEPARTMENT
563.589.4291
WWW.CITYOFDUBUQUE.ORG/WATER