HomeMy WebLinkAbout06/15/2021 02Biii Water/Irrigation Division Drinking Water 2020 Water Quality Report ti i..asxntntj kd
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BUSINESS OF THE CITY COUNCIL
YAKIMA, WASHINGTON
AGENDA STATEMENT
Item No. B.iii.
For Meeting of: June 15, 2021
ITEM TITLE: Water/Irrigation Division Drinking Water 2020 Water Quality Report
SUBMITTED BY: Scott Schafer, Director of Public Works
David Brown,Assistant Director of Public Works, 509.575.6204
SUMMARY EXPLANATION:
Presentation on Drinking Water 2020 Water Quality Report
ITEM BUDGETED: NA
STRATEGIC PRIORITY: Public Trust and Accountability
APPROVED FOR SUBMITTAL BY THE CITY MANAGER
RECOMMENDATION:
Accept Report
ATTACHMENTS:
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resentation 5/24/2021 presentation
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Yakima City Council
June 15, 2021
David Brown Assistant Director of Public Works
1„, .,. r,
'
t:.Ur,: :; 1 WATER QUALITY REPORT
4
Naches River Water Treatment Plant
Inside this issue:
Introduction and source 1 The City of Yakima is once again pleased to present our
water education
annual report on water quality. In addition to the results of • •"::.i....'•'���'•
Summary tables,pt.1 and 2 our major testing programs,we hope this pamphlet will ,„,r.":',.•: ' ::: ,,;::.;:,......""
inform you about your tap water and inspire confidence that •
glossarywith definitions ::.:S:L
the water we all rely on is of the highest quality possible. In '33163:.:
Summary tables,pt.2 and a 3 pursuit of that goal the Water/Irrigation Division staff is " x'u '`ti3k
link to a COVID-19 info page. committed to around-the-clock vigilance and service,and we
are proud to announce that your tap water meets and '
Lead and Copper Rule 4 t' •
'
exceeds all state and federal requirements. • 1 • • •
sample results table
City Of Yakima fi•
....-..•u.' ... •
Water production for 2020 WHERE YOUR WATER COMES FROM
Naches RiverWTP 3.538 Billion The Naches River supplies most of Yakima's drinking water. •
Our diversion is located along Hwy 12 and supplies the Naches
River Water Treatment Plant at Rowe Hill. After treatment, .. • r _
Airport Well 78.6 Million water flows by gravity along the highway into town. During _ _
times of heavy runoff or when the Plant requires downtime
Kissel Well 112.1 Million maintenance,we can draw upon our 4 wells. They are located
at Kiwanis Park,Kissel Park,Gardner Park,and Yakima Airport.
Kiwanis Well .005 Million These wells draw from the Ellensburg Aquifer and are also
tested regularly.
Gardner Well 12.6 Million
•
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.
Every year we take hundreds of samples and analyze them for disinfection byproducts, All drinking water,including bottled water,may reasonably be expected to contain at least
synthetic and volatile organics,biological,radiological,and inorganic contaminants. The small amounts of some contaminants. The presence of contaminants does not necessarily
tables below show the most important and frequently requested results for 2020. If you have indicate that the water poses a health risk. More information about contaminants and
any questions about these tests or if you would like to know about a substance not listed here potential health effects can be obtained by calling the Environmental Protection Agency's Safe
you can call the Water Quality Specialist at 509-576-6477. Drinking Water Hotline at 1-800-426-4791.
t,, _t !''r_ Each year 960 samples from the distribution system are collected and analyzed to comply with the
Microbial C0n_____11IltS Total Coliform Rule(TCR). Col'formsareenvironmentallyubiquitousbacteriathatliveintheground. Glossary for'Fables
The presence of conforms in the water may indicate a leak,a cross-connection,or other problems.
Name Units MCL MCLG Number detected Range low/high Violation? <=less than
Total colform Sample >5% 0 0 0-100% No MCL=Maximum Contaminant Level,the highest level of a
_p Disinfection Byproducts(DBP's)a reformed when the chlorine added as a disinfectant combines with contaminant allowed in drinking water.
DiSint'ec.tton and the naturally occurring organic matter(NOM)toform potentially harmful compounds These
p compounds are divided intotwo main groups:Trihalomethanes lTHM'sl and Haloacetic Acids MCLG=Maximum Contaminant Level Goal,the level of
Disinfection ectio17 Byproducts ( Ss) contaminant below which there is no known or expected
health risk.
Name Units MCL/MRDL Range 2020 Average Violation?
mg/L=milligrams per liter. Equal to ppm.
Chlorine mg/L 4.0 0.05-1.45 0,98 No
MRDL=Maximum Residual Disinfectant Level,the highest
level of a disinfectant allowed in drinking water.
TTH Mfrs ppb 80 8.9-85.6 57.9 No
MRDLG=Maximum Residual Disinfectant Level Goal,the
HAAS`s ppb 60 16.2-41.3 37.1 No level of drinking water disinfectant below which there is
no known or expected health risk
TTurbidity Turbidity is a measure of the"cloudiness''of water. High turbidity can indicate poor water quality. NTU=Nephelometric Turbidity Unit.
urbidity Sources of turbidity are generally attributed to soil runoff caused by he rain or snowmek.
ppm=part per million
Name Units MCL 2020 Average Range lowjhigh Violation? ppb=part per billion
Turbidity NTU TT 0.02 0.01-0.07 No TT=Treatment Technique,a required process intended to
reduce the level of a contaminant.
Fluoride. Fluoride is added to drin king water to improve dental health. Fluoridation in Vakima began in 20i4
after a referend um vote in 2001. For more information shout water system flu orid ation,please visit ��IIIIIII� IIII��I�'�I'll■�III��IIIII�IIIIII�
the DOH website:httpj/www.doh.wa.govJPortalsji/Documents/Pubsji80-021_Fluoridate jacts.pdf
Name Units MCL MCLG 2020 Average Range Violation? We at the City of Yakima strive to provide
safe and healthy drinking water at all times.
Fluoride ppm 4.0 2,0 0.67 0.33-1.15 No The following is a link to the Wa.Dept.of
Health page with facts about Covid and
P •nlllary [r+^ i A National Prim cry Drinking W ater Regulation prim cry stadards are lw,ally en frtrceable standards that Drinking Water.
Standards apply to public water systems. There are more primarystandardsnot included here because they
were presemmn undetectable amounts. https://www.doh.wa.gov/Portals/1/Docume
nts/1600/coronavirus/DrinkingWater.pdf
Name Units MCL MCLG Amount detected Violation? Source
Arsenic ppm 0.01 0 0.00041 No
Barium ppm 2 2 0.00922 No _.cs'u o ,.�_.ra deow-n,inc..strH waste. Water and Heath
Chromium ppm 0.1 0.1 <0.0001 No
Nitrate ppm 10 10 <0.05 No
Some people may be more vulnerable to
Nitrite ppm 1 1 <0.05 No in-e *n:<.re dew,-cre,=err.eer F.-RC'''. certain chemical compounds and
substances in drinking water than the
Thallium ppm 0.002 0A005 0.00027 Na general population.Immuno-compromised
�'Y� persons such as persons with cancer
Se�dnny Standards Secondarystandardsare non-enforceable guidelines regulating contaminants thatmayhave cosmetic undergoing chemotherapy, persons who
ary or aesthetic effects,such astaste,odor,orstaning. have undergone organ transplants, people
with HIV/AIDS or other immune system
disorders,some elderly,and infants can be
Amount Amount particularly at risk from infections. These
Name Units MCI Name Units MCI
detected Detected people should seek advice about drinking
water from their health care providers.
Calcium mg/L — 9.03 Manganese mg/L 0.05 0.00017 EPA and the Center for Disease Control
guidelines on appropriate means to lessen
Chloride mg/L 250 4.88 Turbidity mg/L — <0.1 the risk of infection by Cryptosporidium
Color units 15 <4 Silver mg/L 0.1 <0.0001 and other microbial contaminants are
available from the Safe Drinking Water
Conductivity µmhos/cm 700 106 Sodium mg/L — 6.14 Hotline(800-426-4791).
Hardness mg/L — 30.6 Sulfate mp/L 250 2.93
Total Dissolved
Iron mg/L 0.3 <0.0097 mg/L 500 46.0
Solids
Magnesium mg/L — 1.96 Zinc mg/L 5 0.002
About Lead in Drinking Water Lead and to
three years the City of Yakima is required to analyze water samples from homes determined by the EPA
to be most susceptible to lead and copper leaching from pipes and plumbing components. The City of Yakima
Copper Rule is very pleased to present the 2018 results of all these analyses here,as it is the most recent data that we
have.The element abbreviation for lead is Pb,and copper is Cu. All values are mg/L,or PPM. The Rule sets an
If present,elevated levels of lead can cause Action Level(AL)for lead at 0.015 mg/L and 1.3 mg/L for copper. As you can see,all of these locations from
serious health problems,especially for pregnant throughout our service area show very low to essentially undetectable amounts of these harmful metals.
women and young children. Lead in drinking
water is primarily from materials and
components associated with service lines and Site 1 Site 3 Site 6 Site 7 Site 8 Site 9 Site 10
home plumbing. The City of Yakima is Pb 0.00019 0.00022 <0.0001 0.0003 0.00093 0.0005 0.000167
responsible for providing high quality drinking
water,but cannot control the variety of Cu 0.0677 0.0403 0.0367 0.0371 0.0380 0.1000 0.0655
materials used in plumbing components. When
your water has been sitting for several hours, Site 11 Site 12 Site 13 Site 16 Site 17 Site 18 Site 19
you can minimize the potential for lead Pb 0.00013 0.00010 0.00013 0.00022 0.00018 0.00029 <0.0001
exposure to lead by flushing your tap for 30
seconds to 2 minutes before using water for Cu 0.1140 0.0486 0.0417 0.0571 0.0970 0.0690 0.0334
drinking or cooking. If you are concerned about
lead in your water,you may wish to have your Site 20 Site 22 Site 23 Site 25 Site 28 Site 29 Site 30
water tested. Information on lead in drinking Pb 0.0006 0.0006 0.0001 0.00055 0.0004 0.0004 0.0001
water,testing methods,and steps you can take
to minimize exposure is available from the Safe Cu 0.0528 0.1400 0.0403 0.0845 0.0762 0.0238 0.0367
Drinking Water Hotline(800)426-4791,or
http://www2.epa.gov/lead Site 31 Site 35 Site 39 Site 40 Site 48 Site 49 Site 60
Pb 0.00012 0.00032 0.00167 0.00012 0.0003 0.0008 0.0001
Cu 0.0266 0.0436 0.0692 0.0564 0.0403 0.0352 0.0329
Site 61 Site 62 Site 69
Pb 0.00042 0.00016 0.0002
Questions,Comments,Concerns? Cu 0.0418 0.0658 0.0821
I
i 4..‘
The City of Yakima welcomes your input! tYOU!to 5
The City Council meets on the first and third
A bigTHANK all 31 residents
Tuesday of each month at City Hall Council µ;." ; ., , that participated in 207$.We will again
. .
Chambers. You are encouraged to attend. If E betesting forcopper
wr: r:.
�x Leadandin the
you would like to schedule a tour of the ;;.. summer of 2021.We look forward to
Naches River Water Treatment Plant,please "� v.
ie
.::::::.......
*::::::......:::.. our continued support.We couldn't do
call 575-6177. If you would like to talk about
. :..... ,,. ..: w
, , w .•,., , . .
It without your cooperation.
this report please call 576-6477. . k . .
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Questions
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2020
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Inside this issue: + tTreatmentYtintroduction and source 1Naches RiverWafer Plant
water education
Summary tables,pt.1 and 2 The City of Yakima is once again pleased to present our annu-
glossary with definitions .. ....•, .:::::;:::;«; ;:
al report on water quality. In addition to the results of our ...;•. ,•.,•. , .... i;;.;
3
major testingprograms,we hope this pamphlet will inform •
Summarytables,pt.2 and a P g p p p ,:!,;�i„;ii,,,aa
.br;;.a;::;.:y% '<.::1 I Ic`. I4'I l.:'..Y l ta..Saa,.
a
info
'.:.;.;.x.;;as:.iii:'�:s:�t:�.i.;:.���ys����a��ij�.n.;
link to a Covid 19 i page. ..x....x.,......a,.a..•.:.....•a,,••,a•...••,..
you about your tapwater and inspire confidence that the wa- ...x,..x„ a„••,..:,,,,••,,,,;:x,.a.,-
aii$as•x asa a
•a;: x...:x xa::xiaxx:.
'''+x: xi:%�sii xaai xxx as
ter we all rely on is of the highest quality possible. In pursuit
Lead and Copper Rule 4 t't:t%' :MN;.x''
of that goal the Water/Irrigation Division staff is committed to
aa.
sample results table•
around-the-clock vigilance and service,and we are proud to 1 '`"
announce that your tap water meets and exceeds all state and
federal requirements. _» '
City Of Yakima WHERE YOUR WATER COMES FROM
Water production for 2020 µ
The Naches River supplies most of Yakima's drinking water. ,.
........ .::..
Naches River WTP 3.538 Billion Our diversion is located along Hwy 12 and supplies the Naches "# ;"'—•• --
River Water Treatment Plant at Rowe Hill. After treatment, ._...:-. _........-•.-.
Airport Well 78.6 Million • M`=:.
water flows by gravity along the highway into town. During A<
times of heavy runoff or when the Plant requires downtime
Kissel Well 112.1 Million
maintenance,we can draw upon our 4 wells. They are located
Kiwanis Well Q05 Million at Kiwanis Park, Kissel Park,Gardner Park,and Yakima Airport.
These wells draw from the Ellensburg Aquifer and are also
Gardner Well 12.6 Million tested regularly.
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Every year we take hundreds of samples and analyze them for disinfection byproducts, All drinking water,including bottled water,may reasonably be expected to contain at
synthetic and volatile organics,biological,radiological,and inorganic contaminants. least small amounts of some contaminants. The presence of contaminants does not
The tables below show the most important and frequently requested results for 2020. necessarily indicate that the water poses a health risk. More information about con-
If you have any questions about these tests or if you would like to know about a sub- taminants and potential health effects can be obtained by calling the Environmental
stance not listed here you can call the Water Quality Specialist at 509-576-6477. Protection Agency's Safe Drinking Water Hotline at 1-800-426-4791.
EllESSERESSERESSERESElllESSERSERSERREllEll a hyaar960 nl nA nithedi ll nsysanlara P. tadandanaty adt or't lyweththa _- -
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Name Units MCA. MCIG Number detected Range low/high Violation?
a-less than
'tornl Co ii`orrrn S,rople :0, i; i; 0—ti O% Na
MCL-Maximum Contaminant Level,the highest level of a
= contaminant allowed in drinking water.
...........................1 1 v =y-- -uv 0,•, -- -t- ---w - -f NV - -- - - 1 It f t.t I t- t u wit MCLG-Maximum Contaminant Level Goal.the level of
N�6-�'I11I.111IIgg i�I1�i NN�.�IIN µ Jppplllllllll_Ipljlllllllppppppppppp :thelletUflHy*ccu�rJr.tn$Qrpmc: inyter_:(yyIAGYNt)LGYto�7ot todynn rnffutcoinpounds Thosprcam. contaminant below which there is na known or expected
vim 1-{�{,;�c3ll -- IIIIIIIIIIIIIINN nakrAdM-.P4-dtyld9il lP.ti4Ewd-�'+on a tfpi:-Tpt4},Ii4trAkt1Th&8(T-PIMI} a 4M1t&U C A4ii18{IA.kAl -) M health risk.
mg/L....milligrams per liter. Equal to ppm.
Naeno Units 1VICf /€Aftryl Rango 1070 Avorago Violation? _
-- MRDL-Maximum Residual Disinfectant Level,the highest
Chlorine inn/L 4.0 0_05 1.4S (1 O}3 No _ level of a disinfectant allowed in drinking water.
MRDLG-Maximum Residual Disinfectant Level Coal,the
7 7 I I IVl's >>pb 80 8'2 85_f.. 5 7-9 No = level of drinking water disinfectant below which there is
no known ar expected health risk.
HAAR'=, l,I>li t0 it; 2—AI q ;7 I Nr
{{ _��������� q q�q � �y���p�q ����q lqp���, �q �o;�w��_teq �q��q q � � �q - NTU-Nephelometnc Turbidity unit..
Si .................................. I r`duty 1110YRVa our.of YlQapllaUiiAlyiU AArI1Wf1 Af+ViIYKIlAl9iu 1btd! An 'di it4i AlYlWa rAtreaVMb�iMAAttlty ppm-part per million
Wall 7
at tatte«a eat wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwm PPP-part per b'ihon
Name Units MCI 2020 Average flange low/high Violation? = TT-Treatment Technique,a required process intended to
reduce the level of a contaminant _
turbidity N1Li 11 0.02 OA1 OAl No - —
2
Fluoride is added to drinking water to improve dental health. Fluoridation in Yakima began in 2004
after a referendum vote in 2001. For more information about water system fluoridation,please visit Questions, Concerns about.Covid 19?
Fluoride the DOH website:http://www.doh.wa.gov/PortalsjlfDocumentsfPubs/160-021 Fluoridate_Fadspdf
Name Units MCL MCLG 2020 Average Range Violation? We at the City of Yakima strive to provide
safe and healthy drinking water at all times.
Fluoride ppm 4.0 2.0 0.67 0.33-1.15 No The following is a link to the Wa,Dept,of
National Primary Drinking Water Regulation primary standards are legally enforceable standards that Health page with facts about Covid and
apply to public water systems. There are more primary standards not included here because they Drinking Water. h$p5;//www.doh,wa.gov{
Primary Standards were present in undetectable amounts.
Portals/1/Documents/1600%oronavi rus/
Name Units MCL MCLG Amount detected Violation? Source DrinkingWater.pdf
Arsenic ppm 0.01 0 0.00041 No Erosion of natural deposits,industria l waste,
/
Barium ppm 2 2 0.00922 No Erosion of natural deposits,industrial waste.
Chromium ppm 0.1 0.1 <0.0001 No Erosion of natural deposits,industrial waste. �7�� _
Erosion of natural deposits,fertilizer runoff, Water Health
Nitrate ppm 10 10 <0.05 No
sewage,and faulty septic systems.
11111111
Nitrite ppm 1 1 <0.05 No Erosion of natural deposits,fertilizer runoff,
sewage,and faulty septic systems Some people may be more vulnerable to
Thallium ppm 0.002 0.0005 0.00027 No Industrial waste. certain chemical compounds and sub-
stances in drinking water than the general
Secondary standards are non-enforceable guidelines regulating contaminants that may have cosmetic population. I mmuno-compromised th per-
Secondary tandards or aesthetic sons
chemotherapy, persons who have un-
Amount Amount De-
Name Units MCL Name Units MCI dergone organ transplants, people with
detected tested HIV/AIDS or other immune system disor-
Calcium mg/L — 9.03 Manganese mg/L 0.05 0.00017 ders, some elderly,and infants can be par-
ticularly at risk from infections.These peo-
Chloride mg/L 250 4.88 Turbidity mg/L — <0.1 pie should seek advice about drinking wa-
Color units 15 <4 Silver mg/L 0.1 <0.0001 ter from their health care providers. EPA
and the Center for Disease Control guide-
Conductivity µmhos/cm 700 106 Sodium mg/L — 6.14 lines on appropriate means to lessen the
risk of infection by Cryptosporidium and
Hardness mg/L — 30.6 Sulfate mg/L 250 2.93 other microbial contaminants are available
from the Safe Drinking Water Hotline (800
Total Dissolved
Iron mg/L 0.3 <0.0097 mg/L 500 46.0 -426-4791).
Solids
Magnesium mg/L — 1.96 Zinc mg/L 5 0.002
3
AboueLadmnatilii Yheer
' Lead and
C: >Per 'Auk
women and young<hildren Lead in drinking
the patent al for lead elposureta lead by flush-
wish to haveyourIkatert¢ted. Informatan an
lead in drinking Ikater,t¢bng methods. and
oa<. oas:e: Tx
Ore carat terraria welcome/attar input'. .... .•At*. ... 2013 alttaavillagain be tesfing.
:.: . ..
Nathm. Fiver Water Treatment P1311,please
m ce a ..,u„�,::. ga'v. von, cooperation an